File: | src/gnu/usr.bin/clang/liblldbPluginSymbolFile/../../../llvm/lldb/source/Plugins/SymbolFile/DWARF/DWARFASTParserClang.cpp |
Warning: | line 1972, column 7 Value stored to 'tag_decl_kind' is never read |
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1 | //===-- DWARFASTParserClang.cpp -------------------------------------------===// |
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 | #include <cstdlib> |
10 | |
11 | #include "DWARFASTParserClang.h" |
12 | #include "DWARFDebugInfo.h" |
13 | #include "DWARFDeclContext.h" |
14 | #include "DWARFDefines.h" |
15 | #include "SymbolFileDWARF.h" |
16 | #include "SymbolFileDWARFDebugMap.h" |
17 | #include "SymbolFileDWARFDwo.h" |
18 | #include "UniqueDWARFASTType.h" |
19 | |
20 | #include "Plugins/ExpressionParser/Clang/ClangASTImporter.h" |
21 | #include "Plugins/ExpressionParser/Clang/ClangASTMetadata.h" |
22 | #include "Plugins/ExpressionParser/Clang/ClangUtil.h" |
23 | #include "Plugins/Language/ObjC/ObjCLanguage.h" |
24 | #include "lldb/Core/Module.h" |
25 | #include "lldb/Core/Value.h" |
26 | #include "lldb/Host/Host.h" |
27 | #include "lldb/Symbol/CompileUnit.h" |
28 | #include "lldb/Symbol/Function.h" |
29 | #include "lldb/Symbol/ObjectFile.h" |
30 | #include "lldb/Symbol/SymbolFile.h" |
31 | #include "lldb/Symbol/TypeList.h" |
32 | #include "lldb/Symbol/TypeMap.h" |
33 | #include "lldb/Target/Language.h" |
34 | #include "lldb/Utility/LLDBAssert.h" |
35 | #include "lldb/Utility/Log.h" |
36 | #include "lldb/Utility/StreamString.h" |
37 | |
38 | #include "llvm/Demangle/Demangle.h" |
39 | |
40 | #include "clang/AST/CXXInheritance.h" |
41 | #include "clang/AST/DeclCXX.h" |
42 | #include "clang/AST/DeclObjC.h" |
43 | #include "clang/AST/DeclTemplate.h" |
44 | |
45 | #include <map> |
46 | #include <memory> |
47 | #include <vector> |
48 | |
49 | //#define ENABLE_DEBUG_PRINTF // COMMENT OUT THIS LINE PRIOR TO CHECKIN |
50 | |
51 | #ifdef ENABLE_DEBUG_PRINTF |
52 | #include <cstdio> |
53 | #define DEBUG_PRINTF(fmt, ...) printf(fmt, __VA_ARGS__) |
54 | #else |
55 | #define DEBUG_PRINTF(fmt, ...) |
56 | #endif |
57 | |
58 | using namespace lldb; |
59 | using namespace lldb_private; |
60 | DWARFASTParserClang::DWARFASTParserClang(TypeSystemClang &ast) |
61 | : m_ast(ast), m_die_to_decl_ctx(), m_decl_ctx_to_die() {} |
62 | |
63 | DWARFASTParserClang::~DWARFASTParserClang() = default; |
64 | |
65 | static AccessType DW_ACCESS_to_AccessType(uint32_t dwarf_accessibility) { |
66 | switch (dwarf_accessibility) { |
67 | case DW_ACCESS_public: |
68 | return eAccessPublic; |
69 | case DW_ACCESS_private: |
70 | return eAccessPrivate; |
71 | case DW_ACCESS_protected: |
72 | return eAccessProtected; |
73 | default: |
74 | break; |
75 | } |
76 | return eAccessNone; |
77 | } |
78 | |
79 | static bool DeclKindIsCXXClass(clang::Decl::Kind decl_kind) { |
80 | switch (decl_kind) { |
81 | case clang::Decl::CXXRecord: |
82 | case clang::Decl::ClassTemplateSpecialization: |
83 | return true; |
84 | default: |
85 | break; |
86 | } |
87 | return false; |
88 | } |
89 | |
90 | |
91 | ClangASTImporter &DWARFASTParserClang::GetClangASTImporter() { |
92 | if (!m_clang_ast_importer_up) { |
93 | m_clang_ast_importer_up = std::make_unique<ClangASTImporter>(); |
94 | } |
95 | return *m_clang_ast_importer_up; |
96 | } |
97 | |
98 | /// Detect a forward declaration that is nested in a DW_TAG_module. |
99 | static bool IsClangModuleFwdDecl(const DWARFDIE &Die) { |
100 | if (!Die.GetAttributeValueAsUnsigned(DW_AT_declaration, 0)) |
101 | return false; |
102 | auto Parent = Die.GetParent(); |
103 | while (Parent.IsValid()) { |
104 | if (Parent.Tag() == DW_TAG_module) |
105 | return true; |
106 | Parent = Parent.GetParent(); |
107 | } |
108 | return false; |
109 | } |
110 | |
111 | static DWARFDIE GetContainingClangModuleDIE(const DWARFDIE &die) { |
112 | if (die.IsValid()) { |
113 | DWARFDIE top_module_die; |
114 | // Now make sure this DIE is scoped in a DW_TAG_module tag and return true |
115 | // if so |
116 | for (DWARFDIE parent = die.GetParent(); parent.IsValid(); |
117 | parent = parent.GetParent()) { |
118 | const dw_tag_t tag = parent.Tag(); |
119 | if (tag == DW_TAG_module) |
120 | top_module_die = parent; |
121 | else if (tag == DW_TAG_compile_unit || tag == DW_TAG_partial_unit) |
122 | break; |
123 | } |
124 | |
125 | return top_module_die; |
126 | } |
127 | return DWARFDIE(); |
128 | } |
129 | |
130 | static lldb::ModuleSP GetContainingClangModule(const DWARFDIE &die) { |
131 | if (die.IsValid()) { |
132 | DWARFDIE clang_module_die = GetContainingClangModuleDIE(die); |
133 | |
134 | if (clang_module_die) { |
135 | const char *module_name = clang_module_die.GetName(); |
136 | if (module_name) |
137 | return die.GetDWARF()->GetExternalModule( |
138 | lldb_private::ConstString(module_name)); |
139 | } |
140 | } |
141 | return lldb::ModuleSP(); |
142 | } |
143 | |
144 | TypeSP DWARFASTParserClang::ParseTypeFromClangModule(const SymbolContext &sc, |
145 | const DWARFDIE &die, |
146 | Log *log) { |
147 | ModuleSP clang_module_sp = GetContainingClangModule(die); |
148 | if (!clang_module_sp) |
149 | return TypeSP(); |
150 | |
151 | // If this type comes from a Clang module, recursively look in the |
152 | // DWARF section of the .pcm file in the module cache. Clang |
153 | // generates DWO skeleton units as breadcrumbs to find them. |
154 | llvm::SmallVector<CompilerContext, 4> decl_context; |
155 | die.GetDeclContext(decl_context); |
156 | TypeMap pcm_types; |
157 | |
158 | // The type in the Clang module must have the same language as the current CU. |
159 | LanguageSet languages; |
160 | languages.Insert(SymbolFileDWARF::GetLanguageFamily(*die.GetCU())); |
161 | llvm::DenseSet<SymbolFile *> searched_symbol_files; |
162 | clang_module_sp->GetSymbolFile()->FindTypes(decl_context, languages, |
163 | searched_symbol_files, pcm_types); |
164 | if (pcm_types.Empty()) { |
165 | // Since this type is defined in one of the Clang modules imported |
166 | // by this symbol file, search all of them. Instead of calling |
167 | // sym_file->FindTypes(), which would return this again, go straight |
168 | // to the imported modules. |
169 | auto &sym_file = die.GetCU()->GetSymbolFileDWARF(); |
170 | |
171 | // Well-formed clang modules never form cycles; guard against corrupted |
172 | // ones by inserting the current file. |
173 | searched_symbol_files.insert(&sym_file); |
174 | sym_file.ForEachExternalModule( |
175 | *sc.comp_unit, searched_symbol_files, [&](Module &module) { |
176 | module.GetSymbolFile()->FindTypes(decl_context, languages, |
177 | searched_symbol_files, pcm_types); |
178 | return pcm_types.GetSize(); |
179 | }); |
180 | } |
181 | |
182 | if (!pcm_types.GetSize()) |
183 | return TypeSP(); |
184 | |
185 | // We found a real definition for this type in the Clang module, so lets use |
186 | // it and cache the fact that we found a complete type for this die. |
187 | TypeSP pcm_type_sp = pcm_types.GetTypeAtIndex(0); |
188 | if (!pcm_type_sp) |
189 | return TypeSP(); |
190 | |
191 | lldb_private::CompilerType pcm_type = pcm_type_sp->GetForwardCompilerType(); |
192 | lldb_private::CompilerType type = |
193 | GetClangASTImporter().CopyType(m_ast, pcm_type); |
194 | |
195 | if (!type) |
196 | return TypeSP(); |
197 | |
198 | // Under normal operation pcm_type is a shallow forward declaration |
199 | // that gets completed later. This is necessary to support cyclic |
200 | // data structures. If, however, pcm_type is already complete (for |
201 | // example, because it was loaded for a different target before), |
202 | // the definition needs to be imported right away, too. |
203 | // Type::ResolveClangType() effectively ignores the ResolveState |
204 | // inside type_sp and only looks at IsDefined(), so it never calls |
205 | // ClangASTImporter::ASTImporterDelegate::ImportDefinitionTo(), |
206 | // which does extra work for Objective-C classes. This would result |
207 | // in only the forward declaration to be visible. |
208 | if (pcm_type.IsDefined()) |
209 | GetClangASTImporter().RequireCompleteType(ClangUtil::GetQualType(type)); |
210 | |
211 | SymbolFileDWARF *dwarf = die.GetDWARF(); |
212 | TypeSP type_sp(new Type(die.GetID(), dwarf, pcm_type_sp->GetName(), |
213 | pcm_type_sp->GetByteSize(nullptr), nullptr, |
214 | LLDB_INVALID_UID0xffffffffffffffffULL, Type::eEncodingInvalid, |
215 | &pcm_type_sp->GetDeclaration(), type, |
216 | Type::ResolveState::Forward, |
217 | TypePayloadClang(GetOwningClangModule(die)))); |
218 | |
219 | dwarf->GetTypeList().Insert(type_sp); |
220 | dwarf->GetDIEToType()[die.GetDIE()] = type_sp.get(); |
221 | clang::TagDecl *tag_decl = TypeSystemClang::GetAsTagDecl(type); |
222 | if (tag_decl) { |
223 | LinkDeclContextToDIE(tag_decl, die); |
224 | } else { |
225 | clang::DeclContext *defn_decl_ctx = GetCachedClangDeclContextForDIE(die); |
226 | if (defn_decl_ctx) |
227 | LinkDeclContextToDIE(defn_decl_ctx, die); |
228 | } |
229 | |
230 | return type_sp; |
231 | } |
232 | |
233 | static void ForcefullyCompleteType(CompilerType type) { |
234 | bool started = TypeSystemClang::StartTagDeclarationDefinition(type); |
235 | lldbassert(started && "Unable to start a class type definition.")lldb_private::lldb_assert(static_cast<bool>(started && "Unable to start a class type definition."), "started && \"Unable to start a class type definition.\"" , __FUNCTION__, "/usr/src/gnu/usr.bin/clang/liblldbPluginSymbolFile/../../../llvm/lldb/source/Plugins/SymbolFile/DWARF/DWARFASTParserClang.cpp" , 235); |
236 | TypeSystemClang::CompleteTagDeclarationDefinition(type); |
237 | const clang::TagDecl *td = ClangUtil::GetAsTagDecl(type); |
238 | auto &ts = llvm::cast<TypeSystemClang>(*type.GetTypeSystem()); |
239 | ts.GetMetadata(td)->SetIsForcefullyCompleted(); |
240 | } |
241 | |
242 | /// Complete a type from debug info, or mark it as forcefully completed if |
243 | /// there is no definition of the type in the current Module. Call this function |
244 | /// in contexts where the usual C++ rules require a type to be complete (base |
245 | /// class, member, etc.). |
246 | static void RequireCompleteType(CompilerType type) { |
247 | // Technically, enums can be incomplete too, but we don't handle those as they |
248 | // are emitted even under -flimit-debug-info. |
249 | if (!TypeSystemClang::IsCXXClassType(type)) |
250 | return; |
251 | |
252 | if (type.GetCompleteType()) |
253 | return; |
254 | |
255 | // No complete definition in this module. Mark the class as complete to |
256 | // satisfy local ast invariants, but make a note of the fact that |
257 | // it is not _really_ complete so we can later search for a definition in a |
258 | // different module. |
259 | // Since we provide layout assistance, layouts of types containing this class |
260 | // will be correct even if we are not able to find the definition elsewhere. |
261 | ForcefullyCompleteType(type); |
262 | } |
263 | |
264 | /// This function serves a similar purpose as RequireCompleteType above, but it |
265 | /// avoids completing the type if it is not immediately necessary. It only |
266 | /// ensures we _can_ complete the type later. |
267 | static void PrepareContextToReceiveMembers(TypeSystemClang &ast, |
268 | ClangASTImporter &ast_importer, |
269 | clang::DeclContext *decl_ctx, |
270 | DWARFDIE die, |
271 | const char *type_name_cstr) { |
272 | auto *tag_decl_ctx = clang::dyn_cast<clang::TagDecl>(decl_ctx); |
273 | if (!tag_decl_ctx) |
274 | return; // Non-tag context are always ready. |
275 | |
276 | // We have already completed the type, or we have found its definition and are |
277 | // ready to complete it later (cf. ParseStructureLikeDIE). |
278 | if (tag_decl_ctx->isCompleteDefinition() || tag_decl_ctx->isBeingDefined()) |
279 | return; |
280 | |
281 | // We reach this point of the tag was present in the debug info as a |
282 | // declaration only. If it was imported from another AST context (in the |
283 | // gmodules case), we can complete the type by doing a full import. |
284 | |
285 | // If this type was not imported from an external AST, there's nothing to do. |
286 | CompilerType type = ast.GetTypeForDecl(tag_decl_ctx); |
287 | if (type && ast_importer.CanImport(type)) { |
288 | auto qual_type = ClangUtil::GetQualType(type); |
289 | if (ast_importer.RequireCompleteType(qual_type)) |
290 | return; |
291 | die.GetDWARF()->GetObjectFile()->GetModule()->ReportError( |
292 | "Unable to complete the Decl context for DIE '%s' at offset " |
293 | "0x%8.8x.\nPlease file a bug report.", |
294 | type_name_cstr ? type_name_cstr : "", die.GetOffset()); |
295 | } |
296 | |
297 | // We don't have a type definition and/or the import failed. We must |
298 | // forcefully complete the type to avoid crashes. |
299 | ForcefullyCompleteType(type); |
300 | } |
301 | |
302 | ParsedDWARFTypeAttributes::ParsedDWARFTypeAttributes(const DWARFDIE &die) { |
303 | DWARFAttributes attributes; |
304 | size_t num_attributes = die.GetAttributes(attributes); |
305 | for (size_t i = 0; i < num_attributes; ++i) { |
306 | dw_attr_t attr = attributes.AttributeAtIndex(i); |
307 | DWARFFormValue form_value; |
308 | if (!attributes.ExtractFormValueAtIndex(i, form_value)) |
309 | continue; |
310 | switch (attr) { |
311 | case DW_AT_abstract_origin: |
312 | abstract_origin = form_value; |
313 | break; |
314 | |
315 | case DW_AT_accessibility: |
316 | accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned()); |
317 | break; |
318 | |
319 | case DW_AT_artificial: |
320 | is_artificial = form_value.Boolean(); |
321 | break; |
322 | |
323 | case DW_AT_bit_stride: |
324 | bit_stride = form_value.Unsigned(); |
325 | break; |
326 | |
327 | case DW_AT_byte_size: |
328 | byte_size = form_value.Unsigned(); |
329 | break; |
330 | |
331 | case DW_AT_byte_stride: |
332 | byte_stride = form_value.Unsigned(); |
333 | break; |
334 | |
335 | case DW_AT_calling_convention: |
336 | calling_convention = form_value.Unsigned(); |
337 | break; |
338 | |
339 | case DW_AT_containing_type: |
340 | containing_type = form_value; |
341 | break; |
342 | |
343 | case DW_AT_decl_file: |
344 | // die.GetCU() can differ if DW_AT_specification uses DW_FORM_ref_addr. |
345 | decl.SetFile( |
346 | attributes.CompileUnitAtIndex(i)->GetFile(form_value.Unsigned())); |
347 | break; |
348 | case DW_AT_decl_line: |
349 | decl.SetLine(form_value.Unsigned()); |
350 | break; |
351 | case DW_AT_decl_column: |
352 | decl.SetColumn(form_value.Unsigned()); |
353 | break; |
354 | |
355 | case DW_AT_declaration: |
356 | is_forward_declaration = form_value.Boolean(); |
357 | break; |
358 | |
359 | case DW_AT_encoding: |
360 | encoding = form_value.Unsigned(); |
361 | break; |
362 | |
363 | case DW_AT_enum_class: |
364 | is_scoped_enum = form_value.Boolean(); |
365 | break; |
366 | |
367 | case DW_AT_explicit: |
368 | is_explicit = form_value.Boolean(); |
369 | break; |
370 | |
371 | case DW_AT_external: |
372 | if (form_value.Unsigned()) |
373 | storage = clang::SC_Extern; |
374 | break; |
375 | |
376 | case DW_AT_inline: |
377 | is_inline = form_value.Boolean(); |
378 | break; |
379 | |
380 | case DW_AT_linkage_name: |
381 | case DW_AT_MIPS_linkage_name: |
382 | mangled_name = form_value.AsCString(); |
383 | break; |
384 | |
385 | case DW_AT_name: |
386 | name.SetCString(form_value.AsCString()); |
387 | break; |
388 | |
389 | case DW_AT_object_pointer: |
390 | object_pointer = form_value.Reference(); |
391 | break; |
392 | |
393 | case DW_AT_signature: |
394 | signature = form_value; |
395 | break; |
396 | |
397 | case DW_AT_specification: |
398 | specification = form_value; |
399 | break; |
400 | |
401 | case DW_AT_type: |
402 | type = form_value; |
403 | break; |
404 | |
405 | case DW_AT_virtuality: |
406 | is_virtual = form_value.Boolean(); |
407 | break; |
408 | |
409 | case DW_AT_APPLE_objc_complete_type: |
410 | is_complete_objc_class = form_value.Signed(); |
411 | break; |
412 | |
413 | case DW_AT_APPLE_objc_direct: |
414 | is_objc_direct_call = true; |
415 | break; |
416 | |
417 | case DW_AT_APPLE_runtime_class: |
418 | class_language = (LanguageType)form_value.Signed(); |
419 | break; |
420 | |
421 | case DW_AT_GNU_vector: |
422 | is_vector = form_value.Boolean(); |
423 | break; |
424 | case DW_AT_export_symbols: |
425 | exports_symbols = form_value.Boolean(); |
426 | break; |
427 | } |
428 | } |
429 | } |
430 | |
431 | static std::string GetUnitName(const DWARFDIE &die) { |
432 | if (DWARFUnit *unit = die.GetCU()) |
433 | return unit->GetAbsolutePath().GetPath(); |
434 | return "<missing DWARF unit path>"; |
435 | } |
436 | |
437 | TypeSP DWARFASTParserClang::ParseTypeFromDWARF(const SymbolContext &sc, |
438 | const DWARFDIE &die, |
439 | bool *type_is_new_ptr) { |
440 | if (type_is_new_ptr) |
441 | *type_is_new_ptr = false; |
442 | |
443 | if (!die) |
444 | return nullptr; |
445 | |
446 | Log *log(LogChannelDWARF::GetLogIfAny(DWARF_LOG_TYPE_COMPLETION(1u << 4) | |
447 | DWARF_LOG_LOOKUPS(1u << 3))); |
448 | |
449 | SymbolFileDWARF *dwarf = die.GetDWARF(); |
450 | if (log) { |
451 | DWARFDIE context_die; |
452 | clang::DeclContext *context = |
453 | GetClangDeclContextContainingDIE(die, &context_die); |
454 | |
455 | dwarf->GetObjectFile()->GetModule()->LogMessage( |
456 | log, |
457 | "DWARFASTParserClang::ParseTypeFromDWARF " |
458 | "(die = 0x%8.8x, decl_ctx = %p (die 0x%8.8x)) %s name = '%s')", |
459 | die.GetOffset(), static_cast<void *>(context), context_die.GetOffset(), |
460 | die.GetTagAsCString(), die.GetName()); |
461 | } |
462 | |
463 | Type *type_ptr = dwarf->GetDIEToType().lookup(die.GetDIE()); |
464 | if (type_ptr == DIE_IS_BEING_PARSED((lldb_private::Type *)1)) |
465 | return nullptr; |
466 | if (type_ptr) |
467 | return type_ptr->shared_from_this(); |
468 | // Set a bit that lets us know that we are currently parsing this |
469 | dwarf->GetDIEToType()[die.GetDIE()] = DIE_IS_BEING_PARSED((lldb_private::Type *)1); |
470 | |
471 | ParsedDWARFTypeAttributes attrs(die); |
472 | |
473 | if (DWARFDIE signature_die = attrs.signature.Reference()) { |
474 | if (TypeSP type_sp = |
475 | ParseTypeFromDWARF(sc, signature_die, type_is_new_ptr)) { |
476 | dwarf->GetDIEToType()[die.GetDIE()] = type_sp.get(); |
477 | if (clang::DeclContext *decl_ctx = |
478 | GetCachedClangDeclContextForDIE(signature_die)) |
479 | LinkDeclContextToDIE(decl_ctx, die); |
480 | return type_sp; |
481 | } |
482 | return nullptr; |
483 | } |
484 | |
485 | if (type_is_new_ptr) |
486 | *type_is_new_ptr = true; |
487 | |
488 | const dw_tag_t tag = die.Tag(); |
489 | |
490 | TypeSP type_sp; |
491 | |
492 | switch (tag) { |
493 | case DW_TAG_typedef: |
494 | case DW_TAG_base_type: |
495 | case DW_TAG_pointer_type: |
496 | case DW_TAG_reference_type: |
497 | case DW_TAG_rvalue_reference_type: |
498 | case DW_TAG_const_type: |
499 | case DW_TAG_restrict_type: |
500 | case DW_TAG_volatile_type: |
501 | case DW_TAG_atomic_type: |
502 | case DW_TAG_unspecified_type: { |
503 | type_sp = ParseTypeModifier(sc, die, attrs); |
504 | break; |
505 | } |
506 | |
507 | case DW_TAG_structure_type: |
508 | case DW_TAG_union_type: |
509 | case DW_TAG_class_type: { |
510 | type_sp = ParseStructureLikeDIE(sc, die, attrs); |
511 | break; |
512 | } |
513 | |
514 | case DW_TAG_enumeration_type: { |
515 | type_sp = ParseEnum(sc, die, attrs); |
516 | break; |
517 | } |
518 | |
519 | case DW_TAG_inlined_subroutine: |
520 | case DW_TAG_subprogram: |
521 | case DW_TAG_subroutine_type: { |
522 | type_sp = ParseSubroutine(die, attrs); |
523 | break; |
524 | } |
525 | case DW_TAG_array_type: { |
526 | type_sp = ParseArrayType(die, attrs); |
527 | break; |
528 | } |
529 | case DW_TAG_ptr_to_member_type: { |
530 | type_sp = ParsePointerToMemberType(die, attrs); |
531 | break; |
532 | } |
533 | default: |
534 | dwarf->GetObjectFile()->GetModule()->ReportError( |
535 | "{0x%8.8x}: unhandled type tag 0x%4.4x (%s), please file a bug and " |
536 | "attach the file at the start of this error message", |
537 | die.GetOffset(), tag, DW_TAG_value_to_name(tag)); |
538 | break; |
539 | } |
540 | |
541 | // TODO: We should consider making the switch above exhaustive to simplify |
542 | // control flow in ParseTypeFromDWARF. Then, we could simply replace this |
543 | // return statement with a call to llvm_unreachable. |
544 | return UpdateSymbolContextScopeForType(sc, die, type_sp); |
545 | } |
546 | |
547 | lldb::TypeSP |
548 | DWARFASTParserClang::ParseTypeModifier(const SymbolContext &sc, |
549 | const DWARFDIE &die, |
550 | ParsedDWARFTypeAttributes &attrs) { |
551 | Log *log(LogChannelDWARF::GetLogIfAny(DWARF_LOG_TYPE_COMPLETION(1u << 4) | |
552 | DWARF_LOG_LOOKUPS(1u << 3))); |
553 | SymbolFileDWARF *dwarf = die.GetDWARF(); |
554 | const dw_tag_t tag = die.Tag(); |
555 | LanguageType cu_language = SymbolFileDWARF::GetLanguage(*die.GetCU()); |
556 | Type::ResolveState resolve_state = Type::ResolveState::Unresolved; |
557 | Type::EncodingDataType encoding_data_type = Type::eEncodingIsUID; |
558 | TypeSP type_sp; |
559 | CompilerType clang_type; |
560 | |
561 | if (tag == DW_TAG_typedef) { |
562 | // DeclContext will be populated when the clang type is materialized in |
563 | // Type::ResolveCompilerType. |
564 | PrepareContextToReceiveMembers( |
565 | m_ast, GetClangASTImporter(), |
566 | GetClangDeclContextContainingDIE(die, nullptr), die, |
567 | attrs.name.GetCString()); |
568 | |
569 | if (attrs.type.IsValid()) { |
570 | // Try to parse a typedef from the (DWARF embedded in the) Clang |
571 | // module file first as modules can contain typedef'ed |
572 | // structures that have no names like: |
573 | // |
574 | // typedef struct { int a; } Foo; |
575 | // |
576 | // In this case we will have a structure with no name and a |
577 | // typedef named "Foo" that points to this unnamed |
578 | // structure. The name in the typedef is the only identifier for |
579 | // the struct, so always try to get typedefs from Clang modules |
580 | // if possible. |
581 | // |
582 | // The type_sp returned will be empty if the typedef doesn't |
583 | // exist in a module file, so it is cheap to call this function |
584 | // just to check. |
585 | // |
586 | // If we don't do this we end up creating a TypeSP that says |
587 | // this is a typedef to type 0x123 (the DW_AT_type value would |
588 | // be 0x123 in the DW_TAG_typedef), and this is the unnamed |
589 | // structure type. We will have a hard time tracking down an |
590 | // unnammed structure type in the module debug info, so we make |
591 | // sure we don't get into this situation by always resolving |
592 | // typedefs from the module. |
593 | const DWARFDIE encoding_die = attrs.type.Reference(); |
594 | |
595 | // First make sure that the die that this is typedef'ed to _is_ |
596 | // just a declaration (DW_AT_declaration == 1), not a full |
597 | // definition since template types can't be represented in |
598 | // modules since only concrete instances of templates are ever |
599 | // emitted and modules won't contain those |
600 | if (encoding_die && |
601 | encoding_die.GetAttributeValueAsUnsigned(DW_AT_declaration, 0) == 1) { |
602 | type_sp = ParseTypeFromClangModule(sc, die, log); |
603 | if (type_sp) |
604 | return type_sp; |
605 | } |
606 | } |
607 | } |
608 | |
609 | DEBUG_PRINTF("0x%8.8" PRIx64 ": %s (\"%s\") type => 0x%8.8lx\n", die.GetID(), |
610 | DW_TAG_value_to_name(tag), type_name_cstr, |
611 | encoding_uid.Reference()); |
612 | |
613 | switch (tag) { |
614 | default: |
615 | break; |
616 | |
617 | case DW_TAG_unspecified_type: |
618 | if (attrs.name == "nullptr_t" || attrs.name == "decltype(nullptr)") { |
619 | resolve_state = Type::ResolveState::Full; |
620 | clang_type = m_ast.GetBasicType(eBasicTypeNullPtr); |
621 | break; |
622 | } |
623 | // Fall through to base type below in case we can handle the type |
624 | // there... |
625 | LLVM_FALLTHROUGH[[gnu::fallthrough]]; |
626 | |
627 | case DW_TAG_base_type: |
628 | resolve_state = Type::ResolveState::Full; |
629 | clang_type = m_ast.GetBuiltinTypeForDWARFEncodingAndBitSize( |
630 | attrs.name.GetStringRef(), attrs.encoding, |
631 | attrs.byte_size.getValueOr(0) * 8); |
632 | break; |
633 | |
634 | case DW_TAG_pointer_type: |
635 | encoding_data_type = Type::eEncodingIsPointerUID; |
636 | break; |
637 | case DW_TAG_reference_type: |
638 | encoding_data_type = Type::eEncodingIsLValueReferenceUID; |
639 | break; |
640 | case DW_TAG_rvalue_reference_type: |
641 | encoding_data_type = Type::eEncodingIsRValueReferenceUID; |
642 | break; |
643 | case DW_TAG_typedef: |
644 | encoding_data_type = Type::eEncodingIsTypedefUID; |
645 | break; |
646 | case DW_TAG_const_type: |
647 | encoding_data_type = Type::eEncodingIsConstUID; |
648 | break; |
649 | case DW_TAG_restrict_type: |
650 | encoding_data_type = Type::eEncodingIsRestrictUID; |
651 | break; |
652 | case DW_TAG_volatile_type: |
653 | encoding_data_type = Type::eEncodingIsVolatileUID; |
654 | break; |
655 | case DW_TAG_atomic_type: |
656 | encoding_data_type = Type::eEncodingIsAtomicUID; |
657 | break; |
658 | } |
659 | |
660 | if (!clang_type && (encoding_data_type == Type::eEncodingIsPointerUID || |
661 | encoding_data_type == Type::eEncodingIsTypedefUID)) { |
662 | if (tag == DW_TAG_pointer_type) { |
663 | DWARFDIE target_die = die.GetReferencedDIE(DW_AT_type); |
664 | |
665 | if (target_die.GetAttributeValueAsUnsigned(DW_AT_APPLE_block, 0)) { |
666 | // Blocks have a __FuncPtr inside them which is a pointer to a |
667 | // function of the proper type. |
668 | |
669 | for (DWARFDIE child_die : target_die.children()) { |
670 | if (!strcmp(child_die.GetAttributeValueAsString(DW_AT_name, ""), |
671 | "__FuncPtr")) { |
672 | DWARFDIE function_pointer_type = |
673 | child_die.GetReferencedDIE(DW_AT_type); |
674 | |
675 | if (function_pointer_type) { |
676 | DWARFDIE function_type = |
677 | function_pointer_type.GetReferencedDIE(DW_AT_type); |
678 | |
679 | bool function_type_is_new_pointer; |
680 | TypeSP lldb_function_type_sp = ParseTypeFromDWARF( |
681 | sc, function_type, &function_type_is_new_pointer); |
682 | |
683 | if (lldb_function_type_sp) { |
684 | clang_type = m_ast.CreateBlockPointerType( |
685 | lldb_function_type_sp->GetForwardCompilerType()); |
686 | encoding_data_type = Type::eEncodingIsUID; |
687 | attrs.type.Clear(); |
688 | resolve_state = Type::ResolveState::Full; |
689 | } |
690 | } |
691 | |
692 | break; |
693 | } |
694 | } |
695 | } |
696 | } |
697 | |
698 | if (cu_language == eLanguageTypeObjC || |
699 | cu_language == eLanguageTypeObjC_plus_plus) { |
700 | if (attrs.name) { |
701 | if (attrs.name == "id") { |
702 | if (log) |
703 | dwarf->GetObjectFile()->GetModule()->LogMessage( |
704 | log, |
705 | "SymbolFileDWARF::ParseType (die = 0x%8.8x) %s '%s' " |
706 | "is Objective-C 'id' built-in type.", |
707 | die.GetOffset(), die.GetTagAsCString(), die.GetName()); |
708 | clang_type = m_ast.GetBasicType(eBasicTypeObjCID); |
709 | encoding_data_type = Type::eEncodingIsUID; |
710 | attrs.type.Clear(); |
711 | resolve_state = Type::ResolveState::Full; |
712 | } else if (attrs.name == "Class") { |
713 | if (log) |
714 | dwarf->GetObjectFile()->GetModule()->LogMessage( |
715 | log, |
716 | "SymbolFileDWARF::ParseType (die = 0x%8.8x) %s '%s' " |
717 | "is Objective-C 'Class' built-in type.", |
718 | die.GetOffset(), die.GetTagAsCString(), die.GetName()); |
719 | clang_type = m_ast.GetBasicType(eBasicTypeObjCClass); |
720 | encoding_data_type = Type::eEncodingIsUID; |
721 | attrs.type.Clear(); |
722 | resolve_state = Type::ResolveState::Full; |
723 | } else if (attrs.name == "SEL") { |
724 | if (log) |
725 | dwarf->GetObjectFile()->GetModule()->LogMessage( |
726 | log, |
727 | "SymbolFileDWARF::ParseType (die = 0x%8.8x) %s '%s' " |
728 | "is Objective-C 'selector' built-in type.", |
729 | die.GetOffset(), die.GetTagAsCString(), die.GetName()); |
730 | clang_type = m_ast.GetBasicType(eBasicTypeObjCSel); |
731 | encoding_data_type = Type::eEncodingIsUID; |
732 | attrs.type.Clear(); |
733 | resolve_state = Type::ResolveState::Full; |
734 | } |
735 | } else if (encoding_data_type == Type::eEncodingIsPointerUID && |
736 | attrs.type.IsValid()) { |
737 | // Clang sometimes erroneously emits id as objc_object*. In that |
738 | // case we fix up the type to "id". |
739 | |
740 | const DWARFDIE encoding_die = attrs.type.Reference(); |
741 | |
742 | if (encoding_die && encoding_die.Tag() == DW_TAG_structure_type) { |
743 | llvm::StringRef struct_name = encoding_die.GetName(); |
744 | if (struct_name == "objc_object") { |
745 | if (log) |
746 | dwarf->GetObjectFile()->GetModule()->LogMessage( |
747 | log, |
748 | "SymbolFileDWARF::ParseType (die = 0x%8.8x) %s " |
749 | "'%s' is 'objc_object*', which we overrode to " |
750 | "'id'.", |
751 | die.GetOffset(), die.GetTagAsCString(), die.GetName()); |
752 | clang_type = m_ast.GetBasicType(eBasicTypeObjCID); |
753 | encoding_data_type = Type::eEncodingIsUID; |
754 | attrs.type.Clear(); |
755 | resolve_state = Type::ResolveState::Full; |
756 | } |
757 | } |
758 | } |
759 | } |
760 | } |
761 | |
762 | type_sp = std::make_shared<Type>( |
763 | die.GetID(), dwarf, attrs.name, attrs.byte_size, nullptr, |
764 | dwarf->GetUID(attrs.type.Reference()), encoding_data_type, &attrs.decl, |
765 | clang_type, resolve_state, TypePayloadClang(GetOwningClangModule(die))); |
766 | |
767 | dwarf->GetDIEToType()[die.GetDIE()] = type_sp.get(); |
768 | return type_sp; |
769 | } |
770 | |
771 | TypeSP DWARFASTParserClang::ParseEnum(const SymbolContext &sc, |
772 | const DWARFDIE &die, |
773 | ParsedDWARFTypeAttributes &attrs) { |
774 | Log *log(LogChannelDWARF::GetLogIfAny(DWARF_LOG_TYPE_COMPLETION(1u << 4) | |
775 | DWARF_LOG_LOOKUPS(1u << 3))); |
776 | SymbolFileDWARF *dwarf = die.GetDWARF(); |
777 | const dw_tag_t tag = die.Tag(); |
778 | TypeSP type_sp; |
779 | |
780 | if (attrs.is_forward_declaration) { |
781 | type_sp = ParseTypeFromClangModule(sc, die, log); |
782 | if (type_sp) |
783 | return type_sp; |
784 | |
785 | DWARFDeclContext die_decl_ctx = SymbolFileDWARF::GetDWARFDeclContext(die); |
786 | |
787 | type_sp = dwarf->FindDefinitionTypeForDWARFDeclContext(die_decl_ctx); |
788 | |
789 | if (!type_sp) { |
790 | SymbolFileDWARFDebugMap *debug_map_symfile = dwarf->GetDebugMapSymfile(); |
791 | if (debug_map_symfile) { |
792 | // We weren't able to find a full declaration in this DWARF, |
793 | // see if we have a declaration anywhere else... |
794 | type_sp = debug_map_symfile->FindDefinitionTypeForDWARFDeclContext( |
795 | die_decl_ctx); |
796 | } |
797 | } |
798 | |
799 | if (type_sp) { |
800 | if (log) { |
801 | dwarf->GetObjectFile()->GetModule()->LogMessage( |
802 | log, |
803 | "SymbolFileDWARF(%p) - 0x%8.8x: %s type \"%s\" is a " |
804 | "forward declaration, complete type is 0x%8.8" PRIx64"llx", |
805 | static_cast<void *>(this), die.GetOffset(), |
806 | DW_TAG_value_to_name(tag), attrs.name.GetCString(), |
807 | type_sp->GetID()); |
808 | } |
809 | |
810 | // We found a real definition for this type elsewhere so lets use |
811 | // it and cache the fact that we found a complete type for this |
812 | // die |
813 | dwarf->GetDIEToType()[die.GetDIE()] = type_sp.get(); |
814 | clang::DeclContext *defn_decl_ctx = |
815 | GetCachedClangDeclContextForDIE(dwarf->GetDIE(type_sp->GetID())); |
816 | if (defn_decl_ctx) |
817 | LinkDeclContextToDIE(defn_decl_ctx, die); |
818 | return type_sp; |
819 | } |
820 | } |
821 | DEBUG_PRINTF("0x%8.8" PRIx64 ": %s (\"%s\")\n", die.GetID(), |
822 | DW_TAG_value_to_name(tag), type_name_cstr); |
823 | |
824 | CompilerType enumerator_clang_type; |
825 | CompilerType clang_type; |
826 | clang_type.SetCompilerType( |
827 | &m_ast, dwarf->GetForwardDeclDieToClangType().lookup(die.GetDIE())); |
828 | if (!clang_type) { |
829 | if (attrs.type.IsValid()) { |
830 | Type *enumerator_type = |
831 | dwarf->ResolveTypeUID(attrs.type.Reference(), true); |
832 | if (enumerator_type) |
833 | enumerator_clang_type = enumerator_type->GetFullCompilerType(); |
834 | } |
835 | |
836 | if (!enumerator_clang_type) { |
837 | if (attrs.byte_size) { |
838 | enumerator_clang_type = m_ast.GetBuiltinTypeForDWARFEncodingAndBitSize( |
839 | "", DW_ATE_signed, *attrs.byte_size * 8); |
840 | } else { |
841 | enumerator_clang_type = m_ast.GetBasicType(eBasicTypeInt); |
842 | } |
843 | } |
844 | |
845 | clang_type = m_ast.CreateEnumerationType( |
846 | attrs.name.GetCString(), GetClangDeclContextContainingDIE(die, nullptr), |
847 | GetOwningClangModule(die), attrs.decl, enumerator_clang_type, |
848 | attrs.is_scoped_enum); |
849 | } else { |
850 | enumerator_clang_type = m_ast.GetEnumerationIntegerType(clang_type); |
851 | } |
852 | |
853 | LinkDeclContextToDIE(TypeSystemClang::GetDeclContextForType(clang_type), die); |
854 | |
855 | type_sp = std::make_shared<Type>( |
856 | die.GetID(), dwarf, attrs.name, attrs.byte_size, nullptr, |
857 | dwarf->GetUID(attrs.type.Reference()), Type::eEncodingIsUID, &attrs.decl, |
858 | clang_type, Type::ResolveState::Forward, |
859 | TypePayloadClang(GetOwningClangModule(die))); |
860 | |
861 | if (TypeSystemClang::StartTagDeclarationDefinition(clang_type)) { |
862 | if (die.HasChildren()) { |
863 | bool is_signed = false; |
864 | enumerator_clang_type.IsIntegerType(is_signed); |
865 | ParseChildEnumerators(clang_type, is_signed, |
866 | type_sp->GetByteSize(nullptr).getValueOr(0), die); |
867 | } |
868 | TypeSystemClang::CompleteTagDeclarationDefinition(clang_type); |
869 | } else { |
870 | dwarf->GetObjectFile()->GetModule()->ReportError( |
871 | "DWARF DIE at 0x%8.8x named \"%s\" was not able to start its " |
872 | "definition.\nPlease file a bug and attach the file at the " |
873 | "start of this error message", |
874 | die.GetOffset(), attrs.name.GetCString()); |
875 | } |
876 | return type_sp; |
877 | } |
878 | |
879 | TypeSP DWARFASTParserClang::ParseSubroutine(const DWARFDIE &die, |
880 | ParsedDWARFTypeAttributes &attrs) { |
881 | Log *log(LogChannelDWARF::GetLogIfAny(DWARF_LOG_TYPE_COMPLETION(1u << 4) | |
882 | DWARF_LOG_LOOKUPS(1u << 3))); |
883 | |
884 | SymbolFileDWARF *dwarf = die.GetDWARF(); |
885 | const dw_tag_t tag = die.Tag(); |
886 | |
887 | bool is_variadic = false; |
888 | bool is_static = false; |
889 | bool has_template_params = false; |
890 | |
891 | unsigned type_quals = 0; |
892 | |
893 | std::string object_pointer_name; |
894 | if (attrs.object_pointer) { |
895 | const char *object_pointer_name_cstr = attrs.object_pointer.GetName(); |
896 | if (object_pointer_name_cstr) |
897 | object_pointer_name = object_pointer_name_cstr; |
898 | } |
899 | |
900 | DEBUG_PRINTF("0x%8.8" PRIx64 ": %s (\"%s\")\n", die.GetID(), |
901 | DW_TAG_value_to_name(tag), type_name_cstr); |
902 | |
903 | CompilerType return_clang_type; |
904 | Type *func_type = NULL__null; |
905 | |
906 | if (attrs.type.IsValid()) |
907 | func_type = dwarf->ResolveTypeUID(attrs.type.Reference(), true); |
908 | |
909 | if (func_type) |
910 | return_clang_type = func_type->GetForwardCompilerType(); |
911 | else |
912 | return_clang_type = m_ast.GetBasicType(eBasicTypeVoid); |
913 | |
914 | std::vector<CompilerType> function_param_types; |
915 | std::vector<clang::ParmVarDecl *> function_param_decls; |
916 | |
917 | // Parse the function children for the parameters |
918 | |
919 | DWARFDIE decl_ctx_die; |
920 | clang::DeclContext *containing_decl_ctx = |
921 | GetClangDeclContextContainingDIE(die, &decl_ctx_die); |
922 | const clang::Decl::Kind containing_decl_kind = |
923 | containing_decl_ctx->getDeclKind(); |
924 | |
925 | bool is_cxx_method = DeclKindIsCXXClass(containing_decl_kind); |
926 | // Start off static. This will be set to false in |
927 | // ParseChildParameters(...) if we find a "this" parameters as the |
928 | // first parameter |
929 | if (is_cxx_method) { |
930 | is_static = true; |
931 | } |
932 | |
933 | if (die.HasChildren()) { |
934 | bool skip_artificial = true; |
935 | ParseChildParameters(containing_decl_ctx, die, skip_artificial, is_static, |
936 | is_variadic, has_template_params, |
937 | function_param_types, function_param_decls, |
938 | type_quals); |
939 | } |
940 | |
941 | bool ignore_containing_context = false; |
942 | // Check for templatized class member functions. If we had any |
943 | // DW_TAG_template_type_parameter or DW_TAG_template_value_parameter |
944 | // the DW_TAG_subprogram DIE, then we can't let this become a method in |
945 | // a class. Why? Because templatized functions are only emitted if one |
946 | // of the templatized methods is used in the current compile unit and |
947 | // we will end up with classes that may or may not include these member |
948 | // functions and this means one class won't match another class |
949 | // definition and it affects our ability to use a class in the clang |
950 | // expression parser. So for the greater good, we currently must not |
951 | // allow any template member functions in a class definition. |
952 | if (is_cxx_method && has_template_params) { |
953 | ignore_containing_context = true; |
954 | is_cxx_method = false; |
955 | } |
956 | |
957 | // clang_type will get the function prototype clang type after this |
958 | // call |
959 | CompilerType clang_type = m_ast.CreateFunctionType( |
960 | return_clang_type, function_param_types.data(), |
961 | function_param_types.size(), is_variadic, type_quals); |
962 | |
963 | if (attrs.name) { |
964 | bool type_handled = false; |
965 | if (tag == DW_TAG_subprogram || tag == DW_TAG_inlined_subroutine) { |
966 | ObjCLanguage::MethodName objc_method(attrs.name.GetStringRef(), true); |
967 | if (objc_method.IsValid(true)) { |
968 | CompilerType class_opaque_type; |
969 | ConstString class_name(objc_method.GetClassName()); |
970 | if (class_name) { |
971 | TypeSP complete_objc_class_type_sp( |
972 | dwarf->FindCompleteObjCDefinitionTypeForDIE(DWARFDIE(), |
973 | class_name, false)); |
974 | |
975 | if (complete_objc_class_type_sp) { |
976 | CompilerType type_clang_forward_type = |
977 | complete_objc_class_type_sp->GetForwardCompilerType(); |
978 | if (TypeSystemClang::IsObjCObjectOrInterfaceType( |
979 | type_clang_forward_type)) |
980 | class_opaque_type = type_clang_forward_type; |
981 | } |
982 | } |
983 | |
984 | if (class_opaque_type) { |
985 | // If accessibility isn't set to anything valid, assume public |
986 | // for now... |
987 | if (attrs.accessibility == eAccessNone) |
988 | attrs.accessibility = eAccessPublic; |
989 | |
990 | clang::ObjCMethodDecl *objc_method_decl = |
991 | m_ast.AddMethodToObjCObjectType( |
992 | class_opaque_type, attrs.name.GetCString(), clang_type, |
993 | attrs.accessibility, attrs.is_artificial, is_variadic, |
994 | attrs.is_objc_direct_call); |
995 | type_handled = objc_method_decl != NULL__null; |
996 | if (type_handled) { |
997 | LinkDeclContextToDIE(objc_method_decl, die); |
998 | m_ast.SetMetadataAsUserID(objc_method_decl, die.GetID()); |
999 | } else { |
1000 | dwarf->GetObjectFile()->GetModule()->ReportError( |
1001 | "{0x%8.8x}: invalid Objective-C method 0x%4.4x (%s), " |
1002 | "please file a bug and attach the file at the start of " |
1003 | "this error message", |
1004 | die.GetOffset(), tag, DW_TAG_value_to_name(tag)); |
1005 | } |
1006 | } |
1007 | } else if (is_cxx_method) { |
1008 | // Look at the parent of this DIE and see if is is a class or |
1009 | // struct and see if this is actually a C++ method |
1010 | Type *class_type = dwarf->ResolveType(decl_ctx_die); |
1011 | if (class_type) { |
1012 | bool alternate_defn = false; |
1013 | if (class_type->GetID() != decl_ctx_die.GetID() || |
1014 | IsClangModuleFwdDecl(decl_ctx_die)) { |
1015 | alternate_defn = true; |
1016 | |
1017 | // We uniqued the parent class of this function to another |
1018 | // class so we now need to associate all dies under |
1019 | // "decl_ctx_die" to DIEs in the DIE for "class_type"... |
1020 | DWARFDIE class_type_die = dwarf->GetDIE(class_type->GetID()); |
1021 | |
1022 | if (class_type_die) { |
1023 | std::vector<DWARFDIE> failures; |
1024 | |
1025 | CopyUniqueClassMethodTypes(decl_ctx_die, class_type_die, |
1026 | class_type, failures); |
1027 | |
1028 | // FIXME do something with these failures that's |
1029 | // smarter than just dropping them on the ground. |
1030 | // Unfortunately classes don't like having stuff added |
1031 | // to them after their definitions are complete... |
1032 | |
1033 | Type *type_ptr = dwarf->GetDIEToType()[die.GetDIE()]; |
1034 | if (type_ptr && type_ptr != DIE_IS_BEING_PARSED((lldb_private::Type *)1)) { |
1035 | return type_ptr->shared_from_this(); |
1036 | } |
1037 | } |
1038 | } |
1039 | |
1040 | if (attrs.specification.IsValid()) { |
1041 | // We have a specification which we are going to base our |
1042 | // function prototype off of, so we need this type to be |
1043 | // completed so that the m_die_to_decl_ctx for the method in |
1044 | // the specification has a valid clang decl context. |
1045 | class_type->GetForwardCompilerType(); |
1046 | // If we have a specification, then the function type should |
1047 | // have been made with the specification and not with this |
1048 | // die. |
1049 | DWARFDIE spec_die = attrs.specification.Reference(); |
1050 | clang::DeclContext *spec_clang_decl_ctx = |
1051 | GetClangDeclContextForDIE(spec_die); |
1052 | if (spec_clang_decl_ctx) { |
1053 | LinkDeclContextToDIE(spec_clang_decl_ctx, die); |
1054 | } else { |
1055 | dwarf->GetObjectFile()->GetModule()->ReportWarning( |
1056 | "0x%8.8" PRIx64"llx" ": DW_AT_specification(0x%8.8x" |
1057 | ") has no decl\n", |
1058 | die.GetID(), spec_die.GetOffset()); |
1059 | } |
1060 | type_handled = true; |
1061 | } else if (attrs.abstract_origin.IsValid()) { |
1062 | // We have a specification which we are going to base our |
1063 | // function prototype off of, so we need this type to be |
1064 | // completed so that the m_die_to_decl_ctx for the method in |
1065 | // the abstract origin has a valid clang decl context. |
1066 | class_type->GetForwardCompilerType(); |
1067 | |
1068 | DWARFDIE abs_die = attrs.abstract_origin.Reference(); |
1069 | clang::DeclContext *abs_clang_decl_ctx = |
1070 | GetClangDeclContextForDIE(abs_die); |
1071 | if (abs_clang_decl_ctx) { |
1072 | LinkDeclContextToDIE(abs_clang_decl_ctx, die); |
1073 | } else { |
1074 | dwarf->GetObjectFile()->GetModule()->ReportWarning( |
1075 | "0x%8.8" PRIx64"llx" ": DW_AT_abstract_origin(0x%8.8x" |
1076 | ") has no decl\n", |
1077 | die.GetID(), abs_die.GetOffset()); |
1078 | } |
1079 | type_handled = true; |
1080 | } else { |
1081 | CompilerType class_opaque_type = |
1082 | class_type->GetForwardCompilerType(); |
1083 | if (TypeSystemClang::IsCXXClassType(class_opaque_type)) { |
1084 | if (class_opaque_type.IsBeingDefined() || alternate_defn) { |
1085 | if (!is_static && !die.HasChildren()) { |
1086 | // We have a C++ member function with no children (this |
1087 | // pointer!) and clang will get mad if we try and make |
1088 | // a function that isn't well formed in the DWARF, so |
1089 | // we will just skip it... |
1090 | type_handled = true; |
1091 | } else { |
1092 | bool add_method = true; |
1093 | if (alternate_defn) { |
1094 | // If an alternate definition for the class exists, |
1095 | // then add the method only if an equivalent is not |
1096 | // already present. |
1097 | clang::CXXRecordDecl *record_decl = |
1098 | m_ast.GetAsCXXRecordDecl( |
1099 | class_opaque_type.GetOpaqueQualType()); |
1100 | if (record_decl) { |
1101 | for (auto method_iter = record_decl->method_begin(); |
1102 | method_iter != record_decl->method_end(); |
1103 | method_iter++) { |
1104 | clang::CXXMethodDecl *method_decl = *method_iter; |
1105 | if (method_decl->getNameInfo().getAsString() == |
1106 | attrs.name.GetStringRef()) { |
1107 | if (method_decl->getType() == |
1108 | ClangUtil::GetQualType(clang_type)) { |
1109 | add_method = false; |
1110 | LinkDeclContextToDIE(method_decl, die); |
1111 | type_handled = true; |
1112 | |
1113 | break; |
1114 | } |
1115 | } |
1116 | } |
1117 | } |
1118 | } |
1119 | |
1120 | if (add_method) { |
1121 | llvm::PrettyStackTraceFormat stack_trace( |
1122 | "SymbolFileDWARF::ParseType() is adding a method " |
1123 | "%s to class %s in DIE 0x%8.8" PRIx64"llx" " from %s", |
1124 | attrs.name.GetCString(), |
1125 | class_type->GetName().GetCString(), die.GetID(), |
1126 | dwarf->GetObjectFile() |
1127 | ->GetFileSpec() |
1128 | .GetPath() |
1129 | .c_str()); |
1130 | |
1131 | const bool is_attr_used = false; |
1132 | // Neither GCC 4.2 nor clang++ currently set a valid |
1133 | // accessibility in the DWARF for C++ methods... |
1134 | // Default to public for now... |
1135 | if (attrs.accessibility == eAccessNone) |
1136 | attrs.accessibility = eAccessPublic; |
1137 | |
1138 | clang::CXXMethodDecl *cxx_method_decl = |
1139 | m_ast.AddMethodToCXXRecordType( |
1140 | class_opaque_type.GetOpaqueQualType(), |
1141 | attrs.name.GetCString(), attrs.mangled_name, |
1142 | clang_type, attrs.accessibility, attrs.is_virtual, |
1143 | is_static, attrs.is_inline, attrs.is_explicit, |
1144 | is_attr_used, attrs.is_artificial); |
1145 | |
1146 | type_handled = cxx_method_decl != NULL__null; |
1147 | // Artificial methods are always handled even when we |
1148 | // don't create a new declaration for them. |
1149 | type_handled |= attrs.is_artificial; |
1150 | |
1151 | if (cxx_method_decl) { |
1152 | LinkDeclContextToDIE(cxx_method_decl, die); |
1153 | |
1154 | ClangASTMetadata metadata; |
1155 | metadata.SetUserID(die.GetID()); |
1156 | |
1157 | if (!object_pointer_name.empty()) { |
1158 | metadata.SetObjectPtrName( |
1159 | object_pointer_name.c_str()); |
1160 | LLDB_LOGF(log,do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("Setting object pointer name: %s on method " "object %p.\n", object_pointer_name.c_str(), static_cast< void *>(cxx_method_decl)); } while (0) |
1161 | "Setting object pointer name: %s on method "do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("Setting object pointer name: %s on method " "object %p.\n", object_pointer_name.c_str(), static_cast< void *>(cxx_method_decl)); } while (0) |
1162 | "object %p.\n",do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("Setting object pointer name: %s on method " "object %p.\n", object_pointer_name.c_str(), static_cast< void *>(cxx_method_decl)); } while (0) |
1163 | object_pointer_name.c_str(),do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("Setting object pointer name: %s on method " "object %p.\n", object_pointer_name.c_str(), static_cast< void *>(cxx_method_decl)); } while (0) |
1164 | static_cast<void *>(cxx_method_decl))do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("Setting object pointer name: %s on method " "object %p.\n", object_pointer_name.c_str(), static_cast< void *>(cxx_method_decl)); } while (0); |
1165 | } |
1166 | m_ast.SetMetadata(cxx_method_decl, metadata); |
1167 | } else { |
1168 | ignore_containing_context = true; |
1169 | } |
1170 | } |
1171 | } |
1172 | } else { |
1173 | // We were asked to parse the type for a method in a |
1174 | // class, yet the class hasn't been asked to complete |
1175 | // itself through the clang::ExternalASTSource protocol, |
1176 | // so we need to just have the class complete itself and |
1177 | // do things the right way, then our |
1178 | // DIE should then have an entry in the |
1179 | // dwarf->GetDIEToType() map. First |
1180 | // we need to modify the dwarf->GetDIEToType() so it |
1181 | // doesn't think we are trying to parse this DIE |
1182 | // anymore... |
1183 | dwarf->GetDIEToType()[die.GetDIE()] = NULL__null; |
1184 | |
1185 | // Now we get the full type to force our class type to |
1186 | // complete itself using the clang::ExternalASTSource |
1187 | // protocol which will parse all base classes and all |
1188 | // methods (including the method for this DIE). |
1189 | class_type->GetFullCompilerType(); |
1190 | |
1191 | // The type for this DIE should have been filled in the |
1192 | // function call above |
1193 | Type *type_ptr = dwarf->GetDIEToType()[die.GetDIE()]; |
1194 | if (type_ptr && type_ptr != DIE_IS_BEING_PARSED((lldb_private::Type *)1)) { |
1195 | return type_ptr->shared_from_this(); |
1196 | } |
1197 | |
1198 | // FIXME This is fixing some even uglier behavior but we |
1199 | // really need to |
1200 | // uniq the methods of each class as well as the class |
1201 | // itself. <rdar://problem/11240464> |
1202 | type_handled = true; |
1203 | } |
1204 | } |
1205 | } |
1206 | } |
1207 | } |
1208 | } |
1209 | |
1210 | if (!type_handled) { |
1211 | clang::FunctionDecl *function_decl = nullptr; |
1212 | clang::FunctionDecl *template_function_decl = nullptr; |
1213 | |
1214 | if (attrs.abstract_origin.IsValid()) { |
1215 | DWARFDIE abs_die = attrs.abstract_origin.Reference(); |
1216 | |
1217 | if (dwarf->ResolveType(abs_die)) { |
1218 | function_decl = llvm::dyn_cast_or_null<clang::FunctionDecl>( |
1219 | GetCachedClangDeclContextForDIE(abs_die)); |
1220 | |
1221 | if (function_decl) { |
1222 | LinkDeclContextToDIE(function_decl, die); |
1223 | } |
1224 | } |
1225 | } |
1226 | |
1227 | if (!function_decl) { |
1228 | char *name_buf = nullptr; |
1229 | llvm::StringRef name = attrs.name.GetStringRef(); |
1230 | |
1231 | // We currently generate function templates with template parameters in |
1232 | // their name. In order to get closer to the AST that clang generates |
1233 | // we want to strip these from the name when creating the AST. |
1234 | if (attrs.mangled_name) { |
1235 | llvm::ItaniumPartialDemangler D; |
1236 | if (!D.partialDemangle(attrs.mangled_name)) { |
1237 | name_buf = D.getFunctionBaseName(nullptr, nullptr); |
1238 | name = name_buf; |
1239 | } |
1240 | } |
1241 | |
1242 | // We just have a function that isn't part of a class |
1243 | function_decl = m_ast.CreateFunctionDeclaration( |
1244 | ignore_containing_context ? m_ast.GetTranslationUnitDecl() |
1245 | : containing_decl_ctx, |
1246 | GetOwningClangModule(die), name, clang_type, attrs.storage, |
1247 | attrs.is_inline); |
1248 | std::free(name_buf); |
1249 | |
1250 | if (has_template_params) { |
1251 | TypeSystemClang::TemplateParameterInfos template_param_infos; |
1252 | ParseTemplateParameterInfos(die, template_param_infos); |
1253 | template_function_decl = m_ast.CreateFunctionDeclaration( |
1254 | ignore_containing_context ? m_ast.GetTranslationUnitDecl() |
1255 | : containing_decl_ctx, |
1256 | GetOwningClangModule(die), attrs.name.GetStringRef(), clang_type, |
1257 | attrs.storage, attrs.is_inline); |
1258 | clang::FunctionTemplateDecl *func_template_decl = |
1259 | m_ast.CreateFunctionTemplateDecl( |
1260 | containing_decl_ctx, GetOwningClangModule(die), |
1261 | template_function_decl, template_param_infos); |
1262 | m_ast.CreateFunctionTemplateSpecializationInfo( |
1263 | template_function_decl, func_template_decl, template_param_infos); |
1264 | } |
1265 | |
1266 | lldbassert(function_decl)lldb_private::lldb_assert(static_cast<bool>(function_decl ), "function_decl", __FUNCTION__, "/usr/src/gnu/usr.bin/clang/liblldbPluginSymbolFile/../../../llvm/lldb/source/Plugins/SymbolFile/DWARF/DWARFASTParserClang.cpp" , 1266); |
1267 | |
1268 | if (function_decl) { |
1269 | LinkDeclContextToDIE(function_decl, die); |
1270 | |
1271 | if (!function_param_decls.empty()) { |
1272 | m_ast.SetFunctionParameters(function_decl, function_param_decls); |
1273 | if (template_function_decl) |
1274 | m_ast.SetFunctionParameters(template_function_decl, |
1275 | function_param_decls); |
1276 | } |
1277 | |
1278 | ClangASTMetadata metadata; |
1279 | metadata.SetUserID(die.GetID()); |
1280 | |
1281 | if (!object_pointer_name.empty()) { |
1282 | metadata.SetObjectPtrName(object_pointer_name.c_str()); |
1283 | LLDB_LOGF(log,do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("Setting object pointer name: %s on function " "object %p.", object_pointer_name.c_str(), static_cast<void *>(function_decl)); } while (0) |
1284 | "Setting object pointer name: %s on function "do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("Setting object pointer name: %s on function " "object %p.", object_pointer_name.c_str(), static_cast<void *>(function_decl)); } while (0) |
1285 | "object %p.",do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("Setting object pointer name: %s on function " "object %p.", object_pointer_name.c_str(), static_cast<void *>(function_decl)); } while (0) |
1286 | object_pointer_name.c_str(),do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("Setting object pointer name: %s on function " "object %p.", object_pointer_name.c_str(), static_cast<void *>(function_decl)); } while (0) |
1287 | static_cast<void *>(function_decl))do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("Setting object pointer name: %s on function " "object %p.", object_pointer_name.c_str(), static_cast<void *>(function_decl)); } while (0); |
1288 | } |
1289 | m_ast.SetMetadata(function_decl, metadata); |
1290 | } |
1291 | } |
1292 | } |
1293 | } |
1294 | return std::make_shared<Type>( |
1295 | die.GetID(), dwarf, attrs.name, llvm::None, nullptr, LLDB_INVALID_UID0xffffffffffffffffULL, |
1296 | Type::eEncodingIsUID, &attrs.decl, clang_type, Type::ResolveState::Full); |
1297 | } |
1298 | |
1299 | TypeSP DWARFASTParserClang::ParseArrayType(const DWARFDIE &die, |
1300 | ParsedDWARFTypeAttributes &attrs) { |
1301 | SymbolFileDWARF *dwarf = die.GetDWARF(); |
1302 | |
1303 | DEBUG_PRINTF("0x%8.8" PRIx64 ": %s (\"%s\")\n", die.GetID(), |
1304 | DW_TAG_value_to_name(tag), type_name_cstr); |
1305 | |
1306 | DWARFDIE type_die = attrs.type.Reference(); |
1307 | Type *element_type = dwarf->ResolveTypeUID(type_die, true); |
1308 | |
1309 | if (!element_type) |
1310 | return nullptr; |
1311 | |
1312 | llvm::Optional<SymbolFile::ArrayInfo> array_info = ParseChildArrayInfo(die); |
1313 | if (array_info) { |
1314 | attrs.byte_stride = array_info->byte_stride; |
1315 | attrs.bit_stride = array_info->bit_stride; |
1316 | } |
1317 | if (attrs.byte_stride == 0 && attrs.bit_stride == 0) |
1318 | attrs.byte_stride = element_type->GetByteSize(nullptr).getValueOr(0); |
1319 | CompilerType array_element_type = element_type->GetForwardCompilerType(); |
1320 | RequireCompleteType(array_element_type); |
1321 | |
1322 | uint64_t array_element_bit_stride = |
1323 | attrs.byte_stride * 8 + attrs.bit_stride; |
1324 | CompilerType clang_type; |
1325 | if (array_info && array_info->element_orders.size() > 0) { |
1326 | uint64_t num_elements = 0; |
1327 | auto end = array_info->element_orders.rend(); |
1328 | for (auto pos = array_info->element_orders.rbegin(); pos != end; ++pos) { |
1329 | num_elements = *pos; |
1330 | clang_type = m_ast.CreateArrayType(array_element_type, num_elements, |
1331 | attrs.is_vector); |
1332 | array_element_type = clang_type; |
1333 | array_element_bit_stride = num_elements |
1334 | ? array_element_bit_stride * num_elements |
1335 | : array_element_bit_stride; |
1336 | } |
1337 | } else { |
1338 | clang_type = |
1339 | m_ast.CreateArrayType(array_element_type, 0, attrs.is_vector); |
1340 | } |
1341 | ConstString empty_name; |
1342 | TypeSP type_sp = std::make_shared<Type>( |
1343 | die.GetID(), dwarf, empty_name, array_element_bit_stride / 8, nullptr, |
1344 | dwarf->GetUID(type_die), Type::eEncodingIsUID, &attrs.decl, clang_type, |
1345 | Type::ResolveState::Full); |
1346 | type_sp->SetEncodingType(element_type); |
1347 | const clang::Type *type = ClangUtil::GetQualType(clang_type).getTypePtr(); |
1348 | m_ast.SetMetadataAsUserID(type, die.GetID()); |
1349 | return type_sp; |
1350 | } |
1351 | |
1352 | TypeSP DWARFASTParserClang::ParsePointerToMemberType( |
1353 | const DWARFDIE &die, const ParsedDWARFTypeAttributes &attrs) { |
1354 | SymbolFileDWARF *dwarf = die.GetDWARF(); |
1355 | Type *pointee_type = dwarf->ResolveTypeUID(attrs.type.Reference(), true); |
1356 | Type *class_type = |
1357 | dwarf->ResolveTypeUID(attrs.containing_type.Reference(), true); |
1358 | |
1359 | CompilerType pointee_clang_type = pointee_type->GetForwardCompilerType(); |
1360 | CompilerType class_clang_type = class_type->GetForwardCompilerType(); |
1361 | |
1362 | CompilerType clang_type = TypeSystemClang::CreateMemberPointerType( |
1363 | class_clang_type, pointee_clang_type); |
1364 | |
1365 | if (llvm::Optional<uint64_t> clang_type_size = |
1366 | clang_type.GetByteSize(nullptr)) { |
1367 | return std::make_shared<Type>(die.GetID(), dwarf, attrs.name, |
1368 | *clang_type_size, nullptr, LLDB_INVALID_UID0xffffffffffffffffULL, |
1369 | Type::eEncodingIsUID, nullptr, clang_type, |
1370 | Type::ResolveState::Forward); |
1371 | } |
1372 | return nullptr; |
1373 | } |
1374 | |
1375 | TypeSP DWARFASTParserClang::UpdateSymbolContextScopeForType( |
1376 | const SymbolContext &sc, const DWARFDIE &die, TypeSP type_sp) { |
1377 | if (!type_sp) |
1378 | return type_sp; |
1379 | |
1380 | SymbolFileDWARF *dwarf = die.GetDWARF(); |
1381 | TypeList &type_list = dwarf->GetTypeList(); |
1382 | DWARFDIE sc_parent_die = SymbolFileDWARF::GetParentSymbolContextDIE(die); |
1383 | dw_tag_t sc_parent_tag = sc_parent_die.Tag(); |
1384 | |
1385 | SymbolContextScope *symbol_context_scope = nullptr; |
1386 | if (sc_parent_tag == DW_TAG_compile_unit || |
1387 | sc_parent_tag == DW_TAG_partial_unit) { |
1388 | symbol_context_scope = sc.comp_unit; |
1389 | } else if (sc.function != nullptr && sc_parent_die) { |
1390 | symbol_context_scope = |
1391 | sc.function->GetBlock(true).FindBlockByID(sc_parent_die.GetID()); |
1392 | if (symbol_context_scope == nullptr) |
1393 | symbol_context_scope = sc.function; |
1394 | } else { |
1395 | symbol_context_scope = sc.module_sp.get(); |
1396 | } |
1397 | |
1398 | if (symbol_context_scope != nullptr) |
1399 | type_sp->SetSymbolContextScope(symbol_context_scope); |
1400 | |
1401 | // We are ready to put this type into the uniqued list up at the module |
1402 | // level. |
1403 | type_list.Insert(type_sp); |
1404 | |
1405 | dwarf->GetDIEToType()[die.GetDIE()] = type_sp.get(); |
1406 | return type_sp; |
1407 | } |
1408 | |
1409 | TypeSP |
1410 | DWARFASTParserClang::ParseStructureLikeDIE(const SymbolContext &sc, |
1411 | const DWARFDIE &die, |
1412 | ParsedDWARFTypeAttributes &attrs) { |
1413 | TypeSP type_sp; |
1414 | CompilerType clang_type; |
1415 | const dw_tag_t tag = die.Tag(); |
1416 | SymbolFileDWARF *dwarf = die.GetDWARF(); |
1417 | LanguageType cu_language = SymbolFileDWARF::GetLanguage(*die.GetCU()); |
1418 | Log *log = LogChannelDWARF::GetLogIfAll(DWARF_LOG_TYPE_COMPLETION(1u << 4) | |
1419 | DWARF_LOG_LOOKUPS(1u << 3)); |
1420 | |
1421 | // UniqueDWARFASTType is large, so don't create a local variables on the |
1422 | // stack, put it on the heap. This function is often called recursively and |
1423 | // clang isn't good at sharing the stack space for variables in different |
1424 | // blocks. |
1425 | auto unique_ast_entry_up = std::make_unique<UniqueDWARFASTType>(); |
1426 | |
1427 | ConstString unique_typename(attrs.name); |
1428 | Declaration unique_decl(attrs.decl); |
1429 | |
1430 | if (attrs.name) { |
1431 | if (Language::LanguageIsCPlusPlus(cu_language)) { |
1432 | // For C++, we rely solely upon the one definition rule that says |
1433 | // only one thing can exist at a given decl context. We ignore the |
1434 | // file and line that things are declared on. |
1435 | std::string qualified_name; |
1436 | if (die.GetQualifiedName(qualified_name)) |
1437 | unique_typename = ConstString(qualified_name); |
1438 | unique_decl.Clear(); |
1439 | } |
1440 | |
1441 | if (dwarf->GetUniqueDWARFASTTypeMap().Find( |
1442 | unique_typename, die, unique_decl, attrs.byte_size.getValueOr(-1), |
1443 | *unique_ast_entry_up)) { |
1444 | type_sp = unique_ast_entry_up->m_type_sp; |
1445 | if (type_sp) { |
1446 | dwarf->GetDIEToType()[die.GetDIE()] = type_sp.get(); |
1447 | LinkDeclContextToDIE( |
1448 | GetCachedClangDeclContextForDIE(unique_ast_entry_up->m_die), die); |
1449 | return type_sp; |
1450 | } |
1451 | } |
1452 | } |
1453 | |
1454 | DEBUG_PRINTF("0x%8.8" PRIx64 ": %s (\"%s\")\n", die.GetID(), |
1455 | DW_TAG_value_to_name(tag), type_name_cstr); |
1456 | |
1457 | int tag_decl_kind = -1; |
1458 | AccessType default_accessibility = eAccessNone; |
1459 | if (tag == DW_TAG_structure_type) { |
1460 | tag_decl_kind = clang::TTK_Struct; |
1461 | default_accessibility = eAccessPublic; |
1462 | } else if (tag == DW_TAG_union_type) { |
1463 | tag_decl_kind = clang::TTK_Union; |
1464 | default_accessibility = eAccessPublic; |
1465 | } else if (tag == DW_TAG_class_type) { |
1466 | tag_decl_kind = clang::TTK_Class; |
1467 | default_accessibility = eAccessPrivate; |
1468 | } |
1469 | |
1470 | if (attrs.byte_size && *attrs.byte_size == 0 && attrs.name && |
1471 | !die.HasChildren() && cu_language == eLanguageTypeObjC) { |
1472 | // Work around an issue with clang at the moment where forward |
1473 | // declarations for objective C classes are emitted as: |
1474 | // DW_TAG_structure_type [2] |
1475 | // DW_AT_name( "ForwardObjcClass" ) |
1476 | // DW_AT_byte_size( 0x00 ) |
1477 | // DW_AT_decl_file( "..." ) |
1478 | // DW_AT_decl_line( 1 ) |
1479 | // |
1480 | // Note that there is no DW_AT_declaration and there are no children, |
1481 | // and the byte size is zero. |
1482 | attrs.is_forward_declaration = true; |
1483 | } |
1484 | |
1485 | if (attrs.class_language == eLanguageTypeObjC || |
1486 | attrs.class_language == eLanguageTypeObjC_plus_plus) { |
1487 | if (!attrs.is_complete_objc_class && |
1488 | die.Supports_DW_AT_APPLE_objc_complete_type()) { |
1489 | // We have a valid eSymbolTypeObjCClass class symbol whose name |
1490 | // matches the current objective C class that we are trying to find |
1491 | // and this DIE isn't the complete definition (we checked |
1492 | // is_complete_objc_class above and know it is false), so the real |
1493 | // definition is in here somewhere |
1494 | type_sp = |
1495 | dwarf->FindCompleteObjCDefinitionTypeForDIE(die, attrs.name, true); |
1496 | |
1497 | if (!type_sp) { |
1498 | SymbolFileDWARFDebugMap *debug_map_symfile = |
1499 | dwarf->GetDebugMapSymfile(); |
1500 | if (debug_map_symfile) { |
1501 | // We weren't able to find a full declaration in this DWARF, |
1502 | // see if we have a declaration anywhere else... |
1503 | type_sp = debug_map_symfile->FindCompleteObjCDefinitionTypeForDIE( |
1504 | die, attrs.name, true); |
1505 | } |
1506 | } |
1507 | |
1508 | if (type_sp) { |
1509 | if (log) { |
1510 | dwarf->GetObjectFile()->GetModule()->LogMessage( |
1511 | log, |
1512 | "SymbolFileDWARF(%p) - 0x%8.8x: %s type \"%s\" is an " |
1513 | "incomplete objc type, complete type is 0x%8.8" PRIx64"llx", |
1514 | static_cast<void *>(this), die.GetOffset(), |
1515 | DW_TAG_value_to_name(tag), attrs.name.GetCString(), |
1516 | type_sp->GetID()); |
1517 | } |
1518 | |
1519 | // We found a real definition for this type elsewhere so lets use |
1520 | // it and cache the fact that we found a complete type for this |
1521 | // die |
1522 | dwarf->GetDIEToType()[die.GetDIE()] = type_sp.get(); |
1523 | return type_sp; |
1524 | } |
1525 | } |
1526 | } |
1527 | |
1528 | if (attrs.is_forward_declaration) { |
1529 | // We have a forward declaration to a type and we need to try and |
1530 | // find a full declaration. We look in the current type index just in |
1531 | // case we have a forward declaration followed by an actual |
1532 | // declarations in the DWARF. If this fails, we need to look |
1533 | // elsewhere... |
1534 | if (log) { |
1535 | dwarf->GetObjectFile()->GetModule()->LogMessage( |
1536 | log, |
1537 | "SymbolFileDWARF(%p) - 0x%8.8x: %s type \"%s\" is a " |
1538 | "forward declaration, trying to find complete type", |
1539 | static_cast<void *>(this), die.GetOffset(), DW_TAG_value_to_name(tag), |
1540 | attrs.name.GetCString()); |
1541 | } |
1542 | |
1543 | // See if the type comes from a Clang module and if so, track down |
1544 | // that type. |
1545 | type_sp = ParseTypeFromClangModule(sc, die, log); |
1546 | if (type_sp) |
1547 | return type_sp; |
1548 | |
1549 | DWARFDeclContext die_decl_ctx = SymbolFileDWARF::GetDWARFDeclContext(die); |
1550 | |
1551 | // type_sp = FindDefinitionTypeForDIE (dwarf_cu, die, |
1552 | // type_name_const_str); |
1553 | type_sp = dwarf->FindDefinitionTypeForDWARFDeclContext(die_decl_ctx); |
1554 | |
1555 | if (!type_sp) { |
1556 | SymbolFileDWARFDebugMap *debug_map_symfile = dwarf->GetDebugMapSymfile(); |
1557 | if (debug_map_symfile) { |
1558 | // We weren't able to find a full declaration in this DWARF, see |
1559 | // if we have a declaration anywhere else... |
1560 | type_sp = debug_map_symfile->FindDefinitionTypeForDWARFDeclContext( |
1561 | die_decl_ctx); |
1562 | } |
1563 | } |
1564 | |
1565 | if (type_sp) { |
1566 | if (log) { |
1567 | dwarf->GetObjectFile()->GetModule()->LogMessage( |
1568 | log, |
1569 | "SymbolFileDWARF(%p) - 0x%8.8x: %s type \"%s\" is a " |
1570 | "forward declaration, complete type is 0x%8.8" PRIx64"llx", |
1571 | static_cast<void *>(this), die.GetOffset(), |
1572 | DW_TAG_value_to_name(tag), attrs.name.GetCString(), |
1573 | type_sp->GetID()); |
1574 | } |
1575 | |
1576 | // We found a real definition for this type elsewhere so lets use |
1577 | // it and cache the fact that we found a complete type for this die |
1578 | dwarf->GetDIEToType()[die.GetDIE()] = type_sp.get(); |
1579 | clang::DeclContext *defn_decl_ctx = |
1580 | GetCachedClangDeclContextForDIE(dwarf->GetDIE(type_sp->GetID())); |
1581 | if (defn_decl_ctx) |
1582 | LinkDeclContextToDIE(defn_decl_ctx, die); |
1583 | return type_sp; |
1584 | } |
1585 | } |
1586 | assert(tag_decl_kind != -1)((void)0); |
1587 | bool clang_type_was_created = false; |
1588 | clang_type.SetCompilerType( |
1589 | &m_ast, dwarf->GetForwardDeclDieToClangType().lookup(die.GetDIE())); |
1590 | if (!clang_type) { |
1591 | clang::DeclContext *decl_ctx = |
1592 | GetClangDeclContextContainingDIE(die, nullptr); |
1593 | |
1594 | PrepareContextToReceiveMembers(m_ast, GetClangASTImporter(), decl_ctx, die, |
1595 | attrs.name.GetCString()); |
1596 | |
1597 | if (attrs.accessibility == eAccessNone && decl_ctx) { |
1598 | // Check the decl context that contains this class/struct/union. If |
1599 | // it is a class we must give it an accessibility. |
1600 | const clang::Decl::Kind containing_decl_kind = decl_ctx->getDeclKind(); |
1601 | if (DeclKindIsCXXClass(containing_decl_kind)) |
1602 | attrs.accessibility = default_accessibility; |
1603 | } |
1604 | |
1605 | ClangASTMetadata metadata; |
1606 | metadata.SetUserID(die.GetID()); |
1607 | metadata.SetIsDynamicCXXType(dwarf->ClassOrStructIsVirtual(die)); |
1608 | |
1609 | if (attrs.name.GetStringRef().contains('<')) { |
1610 | TypeSystemClang::TemplateParameterInfos template_param_infos; |
1611 | if (ParseTemplateParameterInfos(die, template_param_infos)) { |
1612 | clang::ClassTemplateDecl *class_template_decl = |
1613 | m_ast.ParseClassTemplateDecl( |
1614 | decl_ctx, GetOwningClangModule(die), attrs.accessibility, |
1615 | attrs.name.GetCString(), tag_decl_kind, template_param_infos); |
1616 | if (!class_template_decl) { |
1617 | if (log) { |
1618 | dwarf->GetObjectFile()->GetModule()->LogMessage( |
1619 | log, |
1620 | "SymbolFileDWARF(%p) - 0x%8.8x: %s type \"%s\" " |
1621 | "clang::ClassTemplateDecl failed to return a decl.", |
1622 | static_cast<void *>(this), die.GetOffset(), |
1623 | DW_TAG_value_to_name(tag), attrs.name.GetCString()); |
1624 | } |
1625 | return TypeSP(); |
1626 | } |
1627 | |
1628 | clang::ClassTemplateSpecializationDecl *class_specialization_decl = |
1629 | m_ast.CreateClassTemplateSpecializationDecl( |
1630 | decl_ctx, GetOwningClangModule(die), class_template_decl, |
1631 | tag_decl_kind, template_param_infos); |
1632 | clang_type = m_ast.CreateClassTemplateSpecializationType( |
1633 | class_specialization_decl); |
1634 | clang_type_was_created = true; |
1635 | |
1636 | m_ast.SetMetadata(class_template_decl, metadata); |
1637 | m_ast.SetMetadata(class_specialization_decl, metadata); |
1638 | } |
1639 | } |
1640 | |
1641 | if (!clang_type_was_created) { |
1642 | clang_type_was_created = true; |
1643 | clang_type = m_ast.CreateRecordType( |
1644 | decl_ctx, GetOwningClangModule(die), attrs.accessibility, |
1645 | attrs.name.GetCString(), tag_decl_kind, attrs.class_language, |
1646 | &metadata, attrs.exports_symbols); |
1647 | } |
1648 | } |
1649 | |
1650 | // Store a forward declaration to this class type in case any |
1651 | // parameters in any class methods need it for the clang types for |
1652 | // function prototypes. |
1653 | LinkDeclContextToDIE(m_ast.GetDeclContextForType(clang_type), die); |
1654 | type_sp = std::make_shared<Type>( |
1655 | die.GetID(), dwarf, attrs.name, attrs.byte_size, nullptr, |
1656 | LLDB_INVALID_UID0xffffffffffffffffULL, Type::eEncodingIsUID, &attrs.decl, clang_type, |
1657 | Type::ResolveState::Forward, |
1658 | TypePayloadClang(OptionalClangModuleID(), attrs.is_complete_objc_class)); |
1659 | |
1660 | // Add our type to the unique type map so we don't end up creating many |
1661 | // copies of the same type over and over in the ASTContext for our |
1662 | // module |
1663 | unique_ast_entry_up->m_type_sp = type_sp; |
1664 | unique_ast_entry_up->m_die = die; |
1665 | unique_ast_entry_up->m_declaration = unique_decl; |
1666 | unique_ast_entry_up->m_byte_size = attrs.byte_size.getValueOr(0); |
1667 | dwarf->GetUniqueDWARFASTTypeMap().Insert(unique_typename, |
1668 | *unique_ast_entry_up); |
1669 | |
1670 | if (!attrs.is_forward_declaration) { |
1671 | // Always start the definition for a class type so that if the class |
1672 | // has child classes or types that require the class to be created |
1673 | // for use as their decl contexts the class will be ready to accept |
1674 | // these child definitions. |
1675 | if (!die.HasChildren()) { |
1676 | // No children for this struct/union/class, lets finish it |
1677 | if (TypeSystemClang::StartTagDeclarationDefinition(clang_type)) { |
1678 | TypeSystemClang::CompleteTagDeclarationDefinition(clang_type); |
1679 | } else { |
1680 | dwarf->GetObjectFile()->GetModule()->ReportError( |
1681 | "DWARF DIE at 0x%8.8x named \"%s\" was not able to start its " |
1682 | "definition.\nPlease file a bug and attach the file at the " |
1683 | "start of this error message", |
1684 | die.GetOffset(), attrs.name.GetCString()); |
1685 | } |
1686 | |
1687 | // If the byte size of the record is specified then overwrite the size |
1688 | // that would be computed by Clang. This is only needed as LLDB's |
1689 | // TypeSystemClang is always in C++ mode, but some compilers such as |
1690 | // GCC and Clang give empty structs a size of 0 in C mode (in contrast to |
1691 | // the size of 1 for empty structs that would be computed in C++ mode). |
1692 | if (attrs.byte_size) { |
1693 | clang::RecordDecl *record_decl = |
1694 | TypeSystemClang::GetAsRecordDecl(clang_type); |
1695 | if (record_decl) { |
1696 | ClangASTImporter::LayoutInfo layout; |
1697 | layout.bit_size = *attrs.byte_size * 8; |
1698 | GetClangASTImporter().SetRecordLayout(record_decl, layout); |
1699 | } |
1700 | } |
1701 | } else if (clang_type_was_created) { |
1702 | // Start the definition if the class is not objective C since the |
1703 | // underlying decls respond to isCompleteDefinition(). Objective |
1704 | // C decls don't respond to isCompleteDefinition() so we can't |
1705 | // start the declaration definition right away. For C++ |
1706 | // class/union/structs we want to start the definition in case the |
1707 | // class is needed as the declaration context for a contained class |
1708 | // or type without the need to complete that type.. |
1709 | |
1710 | if (attrs.class_language != eLanguageTypeObjC && |
1711 | attrs.class_language != eLanguageTypeObjC_plus_plus) |
1712 | TypeSystemClang::StartTagDeclarationDefinition(clang_type); |
1713 | |
1714 | // Leave this as a forward declaration until we need to know the |
1715 | // details of the type. lldb_private::Type will automatically call |
1716 | // the SymbolFile virtual function |
1717 | // "SymbolFileDWARF::CompleteType(Type *)" When the definition |
1718 | // needs to be defined. |
1719 | assert(!dwarf->GetForwardDeclClangTypeToDie().count(((void)0) |
1720 | ClangUtil::RemoveFastQualifiers(clang_type)((void)0) |
1721 | .GetOpaqueQualType()) &&((void)0) |
1722 | "Type already in the forward declaration map!")((void)0); |
1723 | // Can't assume m_ast.GetSymbolFile() is actually a |
1724 | // SymbolFileDWARF, it can be a SymbolFileDWARFDebugMap for Apple |
1725 | // binaries. |
1726 | dwarf->GetForwardDeclDieToClangType()[die.GetDIE()] = |
1727 | clang_type.GetOpaqueQualType(); |
1728 | dwarf->GetForwardDeclClangTypeToDie().try_emplace( |
1729 | ClangUtil::RemoveFastQualifiers(clang_type).GetOpaqueQualType(), |
1730 | *die.GetDIERef()); |
1731 | m_ast.SetHasExternalStorage(clang_type.GetOpaqueQualType(), true); |
1732 | } |
1733 | } |
1734 | |
1735 | // If we made a clang type, set the trivial abi if applicable: We only |
1736 | // do this for pass by value - which implies the Trivial ABI. There |
1737 | // isn't a way to assert that something that would normally be pass by |
1738 | // value is pass by reference, so we ignore that attribute if set. |
1739 | if (attrs.calling_convention == llvm::dwarf::DW_CC_pass_by_value) { |
1740 | clang::CXXRecordDecl *record_decl = |
1741 | m_ast.GetAsCXXRecordDecl(clang_type.GetOpaqueQualType()); |
1742 | if (record_decl && record_decl->getDefinition()) { |
1743 | record_decl->setHasTrivialSpecialMemberForCall(); |
1744 | } |
1745 | } |
1746 | |
1747 | if (attrs.calling_convention == llvm::dwarf::DW_CC_pass_by_reference) { |
1748 | clang::CXXRecordDecl *record_decl = |
1749 | m_ast.GetAsCXXRecordDecl(clang_type.GetOpaqueQualType()); |
1750 | if (record_decl) |
1751 | record_decl->setArgPassingRestrictions( |
1752 | clang::RecordDecl::APK_CannotPassInRegs); |
1753 | } |
1754 | return type_sp; |
1755 | } |
1756 | |
1757 | // DWARF parsing functions |
1758 | |
1759 | class DWARFASTParserClang::DelayedAddObjCClassProperty { |
1760 | public: |
1761 | DelayedAddObjCClassProperty( |
1762 | const CompilerType &class_opaque_type, const char *property_name, |
1763 | const CompilerType &property_opaque_type, // The property type is only |
1764 | // required if you don't have an |
1765 | // ivar decl |
1766 | clang::ObjCIvarDecl *ivar_decl, const char *property_setter_name, |
1767 | const char *property_getter_name, uint32_t property_attributes, |
1768 | const ClangASTMetadata *metadata) |
1769 | : m_class_opaque_type(class_opaque_type), m_property_name(property_name), |
1770 | m_property_opaque_type(property_opaque_type), m_ivar_decl(ivar_decl), |
1771 | m_property_setter_name(property_setter_name), |
1772 | m_property_getter_name(property_getter_name), |
1773 | m_property_attributes(property_attributes) { |
1774 | if (metadata != nullptr) { |
1775 | m_metadata_up = std::make_unique<ClangASTMetadata>(); |
1776 | *m_metadata_up = *metadata; |
1777 | } |
1778 | } |
1779 | |
1780 | DelayedAddObjCClassProperty(const DelayedAddObjCClassProperty &rhs) { |
1781 | *this = rhs; |
1782 | } |
1783 | |
1784 | DelayedAddObjCClassProperty & |
1785 | operator=(const DelayedAddObjCClassProperty &rhs) { |
1786 | m_class_opaque_type = rhs.m_class_opaque_type; |
1787 | m_property_name = rhs.m_property_name; |
1788 | m_property_opaque_type = rhs.m_property_opaque_type; |
1789 | m_ivar_decl = rhs.m_ivar_decl; |
1790 | m_property_setter_name = rhs.m_property_setter_name; |
1791 | m_property_getter_name = rhs.m_property_getter_name; |
1792 | m_property_attributes = rhs.m_property_attributes; |
1793 | |
1794 | if (rhs.m_metadata_up) { |
1795 | m_metadata_up = std::make_unique<ClangASTMetadata>(); |
1796 | *m_metadata_up = *rhs.m_metadata_up; |
1797 | } |
1798 | return *this; |
1799 | } |
1800 | |
1801 | bool Finalize() { |
1802 | return TypeSystemClang::AddObjCClassProperty( |
1803 | m_class_opaque_type, m_property_name, m_property_opaque_type, |
1804 | m_ivar_decl, m_property_setter_name, m_property_getter_name, |
1805 | m_property_attributes, m_metadata_up.get()); |
1806 | } |
1807 | |
1808 | private: |
1809 | CompilerType m_class_opaque_type; |
1810 | const char *m_property_name; |
1811 | CompilerType m_property_opaque_type; |
1812 | clang::ObjCIvarDecl *m_ivar_decl; |
1813 | const char *m_property_setter_name; |
1814 | const char *m_property_getter_name; |
1815 | uint32_t m_property_attributes; |
1816 | std::unique_ptr<ClangASTMetadata> m_metadata_up; |
1817 | }; |
1818 | |
1819 | bool DWARFASTParserClang::ParseTemplateDIE( |
1820 | const DWARFDIE &die, |
1821 | TypeSystemClang::TemplateParameterInfos &template_param_infos) { |
1822 | const dw_tag_t tag = die.Tag(); |
1823 | bool is_template_template_argument = false; |
1824 | |
1825 | switch (tag) { |
1826 | case DW_TAG_GNU_template_parameter_pack: { |
1827 | template_param_infos.packed_args = |
1828 | std::make_unique<TypeSystemClang::TemplateParameterInfos>(); |
1829 | for (DWARFDIE child_die : die.children()) { |
1830 | if (!ParseTemplateDIE(child_die, *template_param_infos.packed_args)) |
1831 | return false; |
1832 | } |
1833 | if (const char *name = die.GetName()) { |
1834 | template_param_infos.pack_name = name; |
1835 | } |
1836 | return true; |
1837 | } |
1838 | case DW_TAG_GNU_template_template_param: |
1839 | is_template_template_argument = true; |
1840 | LLVM_FALLTHROUGH[[gnu::fallthrough]]; |
1841 | case DW_TAG_template_type_parameter: |
1842 | case DW_TAG_template_value_parameter: { |
1843 | DWARFAttributes attributes; |
1844 | const size_t num_attributes = die.GetAttributes(attributes); |
1845 | const char *name = nullptr; |
1846 | const char *template_name = nullptr; |
1847 | CompilerType clang_type; |
1848 | uint64_t uval64 = 0; |
1849 | bool uval64_valid = false; |
1850 | if (num_attributes > 0) { |
1851 | DWARFFormValue form_value; |
1852 | for (size_t i = 0; i < num_attributes; ++i) { |
1853 | const dw_attr_t attr = attributes.AttributeAtIndex(i); |
1854 | |
1855 | switch (attr) { |
1856 | case DW_AT_name: |
1857 | if (attributes.ExtractFormValueAtIndex(i, form_value)) |
1858 | name = form_value.AsCString(); |
1859 | break; |
1860 | |
1861 | case DW_AT_GNU_template_name: |
1862 | if (attributes.ExtractFormValueAtIndex(i, form_value)) |
1863 | template_name = form_value.AsCString(); |
1864 | break; |
1865 | |
1866 | case DW_AT_type: |
1867 | if (attributes.ExtractFormValueAtIndex(i, form_value)) { |
1868 | Type *lldb_type = die.ResolveTypeUID(form_value.Reference()); |
1869 | if (lldb_type) |
1870 | clang_type = lldb_type->GetForwardCompilerType(); |
1871 | } |
1872 | break; |
1873 | |
1874 | case DW_AT_const_value: |
1875 | if (attributes.ExtractFormValueAtIndex(i, form_value)) { |
1876 | uval64_valid = true; |
1877 | uval64 = form_value.Unsigned(); |
1878 | } |
1879 | break; |
1880 | default: |
1881 | break; |
1882 | } |
1883 | } |
1884 | |
1885 | clang::ASTContext &ast = m_ast.getASTContext(); |
1886 | if (!clang_type) |
1887 | clang_type = m_ast.GetBasicType(eBasicTypeVoid); |
1888 | |
1889 | if (!is_template_template_argument) { |
1890 | bool is_signed = false; |
1891 | if (name && name[0]) |
1892 | template_param_infos.names.push_back(name); |
1893 | else |
1894 | template_param_infos.names.push_back(NULL__null); |
1895 | |
1896 | // Get the signed value for any integer or enumeration if available |
1897 | clang_type.IsIntegerOrEnumerationType(is_signed); |
1898 | |
1899 | if (tag == DW_TAG_template_value_parameter && uval64_valid) { |
1900 | llvm::Optional<uint64_t> size = clang_type.GetBitSize(nullptr); |
1901 | if (!size) |
1902 | return false; |
1903 | llvm::APInt apint(*size, uval64, is_signed); |
1904 | template_param_infos.args.push_back( |
1905 | clang::TemplateArgument(ast, llvm::APSInt(apint, !is_signed), |
1906 | ClangUtil::GetQualType(clang_type))); |
1907 | } else { |
1908 | template_param_infos.args.push_back( |
1909 | clang::TemplateArgument(ClangUtil::GetQualType(clang_type))); |
1910 | } |
1911 | } else { |
1912 | auto *tplt_type = m_ast.CreateTemplateTemplateParmDecl(template_name); |
1913 | template_param_infos.names.push_back(name); |
1914 | template_param_infos.args.push_back( |
1915 | clang::TemplateArgument(clang::TemplateName(tplt_type))); |
1916 | } |
1917 | } |
1918 | } |
1919 | return true; |
1920 | |
1921 | default: |
1922 | break; |
1923 | } |
1924 | return false; |
1925 | } |
1926 | |
1927 | bool DWARFASTParserClang::ParseTemplateParameterInfos( |
1928 | const DWARFDIE &parent_die, |
1929 | TypeSystemClang::TemplateParameterInfos &template_param_infos) { |
1930 | |
1931 | if (!parent_die) |
1932 | return false; |
1933 | |
1934 | for (DWARFDIE die : parent_die.children()) { |
1935 | const dw_tag_t tag = die.Tag(); |
1936 | |
1937 | switch (tag) { |
1938 | case DW_TAG_template_type_parameter: |
1939 | case DW_TAG_template_value_parameter: |
1940 | case DW_TAG_GNU_template_parameter_pack: |
1941 | case DW_TAG_GNU_template_template_param: |
1942 | ParseTemplateDIE(die, template_param_infos); |
1943 | break; |
1944 | |
1945 | default: |
1946 | break; |
1947 | } |
1948 | } |
1949 | return template_param_infos.args.size() == template_param_infos.names.size(); |
1950 | } |
1951 | |
1952 | bool DWARFASTParserClang::CompleteRecordType(const DWARFDIE &die, |
1953 | lldb_private::Type *type, |
1954 | CompilerType &clang_type) { |
1955 | const dw_tag_t tag = die.Tag(); |
1956 | SymbolFileDWARF *dwarf = die.GetDWARF(); |
1957 | |
1958 | ClangASTImporter::LayoutInfo layout_info; |
1959 | |
1960 | if (die.HasChildren()) { |
1961 | const bool type_is_objc_object_or_interface = |
1962 | TypeSystemClang::IsObjCObjectOrInterfaceType(clang_type); |
1963 | if (type_is_objc_object_or_interface) { |
1964 | // For objective C we don't start the definition when the class is |
1965 | // created. |
1966 | TypeSystemClang::StartTagDeclarationDefinition(clang_type); |
1967 | } |
1968 | |
1969 | int tag_decl_kind = -1; |
1970 | AccessType default_accessibility = eAccessNone; |
1971 | if (tag == DW_TAG_structure_type) { |
1972 | tag_decl_kind = clang::TTK_Struct; |
Value stored to 'tag_decl_kind' is never read | |
1973 | default_accessibility = eAccessPublic; |
1974 | } else if (tag == DW_TAG_union_type) { |
1975 | tag_decl_kind = clang::TTK_Union; |
1976 | default_accessibility = eAccessPublic; |
1977 | } else if (tag == DW_TAG_class_type) { |
1978 | tag_decl_kind = clang::TTK_Class; |
1979 | default_accessibility = eAccessPrivate; |
1980 | } |
1981 | |
1982 | std::vector<std::unique_ptr<clang::CXXBaseSpecifier>> bases; |
1983 | // Parse members and base classes first |
1984 | std::vector<DWARFDIE> member_function_dies; |
1985 | |
1986 | DelayedPropertyList delayed_properties; |
1987 | ParseChildMembers(die, clang_type, bases, member_function_dies, |
1988 | delayed_properties, default_accessibility, layout_info); |
1989 | |
1990 | // Now parse any methods if there were any... |
1991 | for (const DWARFDIE &die : member_function_dies) |
1992 | dwarf->ResolveType(die); |
1993 | |
1994 | if (type_is_objc_object_or_interface) { |
1995 | ConstString class_name(clang_type.GetTypeName()); |
1996 | if (class_name) { |
1997 | dwarf->GetObjCMethods(class_name, [&](DWARFDIE method_die) { |
1998 | method_die.ResolveType(); |
1999 | return true; |
2000 | }); |
2001 | |
2002 | for (DelayedPropertyList::iterator pi = delayed_properties.begin(), |
2003 | pe = delayed_properties.end(); |
2004 | pi != pe; ++pi) |
2005 | pi->Finalize(); |
2006 | } |
2007 | } |
2008 | |
2009 | if (!bases.empty()) { |
2010 | // Make sure all base classes refer to complete types and not forward |
2011 | // declarations. If we don't do this, clang will crash with an |
2012 | // assertion in the call to clang_type.TransferBaseClasses() |
2013 | for (const auto &base_class : bases) { |
2014 | clang::TypeSourceInfo *type_source_info = |
2015 | base_class->getTypeSourceInfo(); |
2016 | if (type_source_info) |
2017 | RequireCompleteType(m_ast.GetType(type_source_info->getType())); |
2018 | } |
2019 | |
2020 | m_ast.TransferBaseClasses(clang_type.GetOpaqueQualType(), |
2021 | std::move(bases)); |
2022 | } |
2023 | } |
2024 | |
2025 | m_ast.AddMethodOverridesForCXXRecordType(clang_type.GetOpaqueQualType()); |
2026 | TypeSystemClang::BuildIndirectFields(clang_type); |
2027 | TypeSystemClang::CompleteTagDeclarationDefinition(clang_type); |
2028 | |
2029 | if (!layout_info.field_offsets.empty() || !layout_info.base_offsets.empty() || |
2030 | !layout_info.vbase_offsets.empty()) { |
2031 | if (type) |
2032 | layout_info.bit_size = type->GetByteSize(nullptr).getValueOr(0) * 8; |
2033 | if (layout_info.bit_size == 0) |
2034 | layout_info.bit_size = |
2035 | die.GetAttributeValueAsUnsigned(DW_AT_byte_size, 0) * 8; |
2036 | |
2037 | clang::CXXRecordDecl *record_decl = |
2038 | m_ast.GetAsCXXRecordDecl(clang_type.GetOpaqueQualType()); |
2039 | if (record_decl) |
2040 | GetClangASTImporter().SetRecordLayout(record_decl, layout_info); |
2041 | } |
2042 | |
2043 | return (bool)clang_type; |
2044 | } |
2045 | |
2046 | bool DWARFASTParserClang::CompleteEnumType(const DWARFDIE &die, |
2047 | lldb_private::Type *type, |
2048 | CompilerType &clang_type) { |
2049 | if (TypeSystemClang::StartTagDeclarationDefinition(clang_type)) { |
2050 | if (die.HasChildren()) { |
2051 | bool is_signed = false; |
2052 | clang_type.IsIntegerType(is_signed); |
2053 | ParseChildEnumerators(clang_type, is_signed, |
2054 | type->GetByteSize(nullptr).getValueOr(0), die); |
2055 | } |
2056 | TypeSystemClang::CompleteTagDeclarationDefinition(clang_type); |
2057 | } |
2058 | return (bool)clang_type; |
2059 | } |
2060 | |
2061 | bool DWARFASTParserClang::CompleteTypeFromDWARF(const DWARFDIE &die, |
2062 | lldb_private::Type *type, |
2063 | CompilerType &clang_type) { |
2064 | SymbolFileDWARF *dwarf = die.GetDWARF(); |
2065 | |
2066 | std::lock_guard<std::recursive_mutex> guard( |
2067 | dwarf->GetObjectFile()->GetModule()->GetMutex()); |
2068 | |
2069 | // Disable external storage for this type so we don't get anymore |
2070 | // clang::ExternalASTSource queries for this type. |
2071 | m_ast.SetHasExternalStorage(clang_type.GetOpaqueQualType(), false); |
2072 | |
2073 | if (!die) |
2074 | return false; |
2075 | |
2076 | const dw_tag_t tag = die.Tag(); |
2077 | |
2078 | Log *log = |
2079 | nullptr; // (LogChannelDWARF::GetLogIfAny(DWARF_LOG_DEBUG_INFO|DWARF_LOG_TYPE_COMPLETION)); |
2080 | if (log) |
2081 | dwarf->GetObjectFile()->GetModule()->LogMessageVerboseBacktrace( |
2082 | log, "0x%8.8" PRIx64"llx" ": %s '%s' resolving forward declaration...", |
2083 | die.GetID(), die.GetTagAsCString(), type->GetName().AsCString()); |
2084 | assert(clang_type)((void)0); |
2085 | DWARFAttributes attributes; |
2086 | switch (tag) { |
2087 | case DW_TAG_structure_type: |
2088 | case DW_TAG_union_type: |
2089 | case DW_TAG_class_type: |
2090 | return CompleteRecordType(die, type, clang_type); |
2091 | case DW_TAG_enumeration_type: |
2092 | return CompleteEnumType(die, type, clang_type); |
2093 | default: |
2094 | assert(false && "not a forward clang type decl!")((void)0); |
2095 | break; |
2096 | } |
2097 | |
2098 | return false; |
2099 | } |
2100 | |
2101 | void DWARFASTParserClang::EnsureAllDIEsInDeclContextHaveBeenParsed( |
2102 | lldb_private::CompilerDeclContext decl_context) { |
2103 | auto opaque_decl_ctx = |
2104 | (clang::DeclContext *)decl_context.GetOpaqueDeclContext(); |
2105 | for (auto it = m_decl_ctx_to_die.find(opaque_decl_ctx); |
2106 | it != m_decl_ctx_to_die.end() && it->first == opaque_decl_ctx; |
2107 | it = m_decl_ctx_to_die.erase(it)) |
2108 | for (DWARFDIE decl : it->second.children()) |
2109 | GetClangDeclForDIE(decl); |
2110 | } |
2111 | |
2112 | CompilerDecl DWARFASTParserClang::GetDeclForUIDFromDWARF(const DWARFDIE &die) { |
2113 | clang::Decl *clang_decl = GetClangDeclForDIE(die); |
2114 | if (clang_decl != nullptr) |
2115 | return m_ast.GetCompilerDecl(clang_decl); |
2116 | return CompilerDecl(); |
2117 | } |
2118 | |
2119 | CompilerDeclContext |
2120 | DWARFASTParserClang::GetDeclContextForUIDFromDWARF(const DWARFDIE &die) { |
2121 | clang::DeclContext *clang_decl_ctx = GetClangDeclContextForDIE(die); |
2122 | if (clang_decl_ctx) |
2123 | return m_ast.CreateDeclContext(clang_decl_ctx); |
2124 | return CompilerDeclContext(); |
2125 | } |
2126 | |
2127 | CompilerDeclContext |
2128 | DWARFASTParserClang::GetDeclContextContainingUIDFromDWARF(const DWARFDIE &die) { |
2129 | clang::DeclContext *clang_decl_ctx = |
2130 | GetClangDeclContextContainingDIE(die, nullptr); |
2131 | if (clang_decl_ctx) |
2132 | return m_ast.CreateDeclContext(clang_decl_ctx); |
2133 | return CompilerDeclContext(); |
2134 | } |
2135 | |
2136 | size_t DWARFASTParserClang::ParseChildEnumerators( |
2137 | lldb_private::CompilerType &clang_type, bool is_signed, |
2138 | uint32_t enumerator_byte_size, const DWARFDIE &parent_die) { |
2139 | if (!parent_die) |
2140 | return 0; |
2141 | |
2142 | size_t enumerators_added = 0; |
2143 | |
2144 | for (DWARFDIE die : parent_die.children()) { |
2145 | const dw_tag_t tag = die.Tag(); |
2146 | if (tag == DW_TAG_enumerator) { |
2147 | DWARFAttributes attributes; |
2148 | const size_t num_child_attributes = die.GetAttributes(attributes); |
2149 | if (num_child_attributes > 0) { |
2150 | const char *name = nullptr; |
2151 | bool got_value = false; |
2152 | int64_t enum_value = 0; |
2153 | Declaration decl; |
2154 | |
2155 | uint32_t i; |
2156 | for (i = 0; i < num_child_attributes; ++i) { |
2157 | const dw_attr_t attr = attributes.AttributeAtIndex(i); |
2158 | DWARFFormValue form_value; |
2159 | if (attributes.ExtractFormValueAtIndex(i, form_value)) { |
2160 | switch (attr) { |
2161 | case DW_AT_const_value: |
2162 | got_value = true; |
2163 | if (is_signed) |
2164 | enum_value = form_value.Signed(); |
2165 | else |
2166 | enum_value = form_value.Unsigned(); |
2167 | break; |
2168 | |
2169 | case DW_AT_name: |
2170 | name = form_value.AsCString(); |
2171 | break; |
2172 | |
2173 | case DW_AT_description: |
2174 | default: |
2175 | case DW_AT_decl_file: |
2176 | decl.SetFile(attributes.CompileUnitAtIndex(i)->GetFile( |
2177 | form_value.Unsigned())); |
2178 | break; |
2179 | case DW_AT_decl_line: |
2180 | decl.SetLine(form_value.Unsigned()); |
2181 | break; |
2182 | case DW_AT_decl_column: |
2183 | decl.SetColumn(form_value.Unsigned()); |
2184 | break; |
2185 | case DW_AT_sibling: |
2186 | break; |
2187 | } |
2188 | } |
2189 | } |
2190 | |
2191 | if (name && name[0] && got_value) { |
2192 | m_ast.AddEnumerationValueToEnumerationType( |
2193 | clang_type, decl, name, enum_value, enumerator_byte_size * 8); |
2194 | ++enumerators_added; |
2195 | } |
2196 | } |
2197 | } |
2198 | } |
2199 | return enumerators_added; |
2200 | } |
2201 | |
2202 | Function *DWARFASTParserClang::ParseFunctionFromDWARF(CompileUnit &comp_unit, |
2203 | const DWARFDIE &die) { |
2204 | DWARFRangeList func_ranges; |
2205 | const char *name = nullptr; |
2206 | const char *mangled = nullptr; |
2207 | int decl_file = 0; |
2208 | int decl_line = 0; |
2209 | int decl_column = 0; |
2210 | int call_file = 0; |
2211 | int call_line = 0; |
2212 | int call_column = 0; |
2213 | DWARFExpression frame_base; |
2214 | |
2215 | const dw_tag_t tag = die.Tag(); |
2216 | |
2217 | if (tag != DW_TAG_subprogram) |
2218 | return nullptr; |
2219 | |
2220 | if (die.GetDIENamesAndRanges(name, mangled, func_ranges, decl_file, decl_line, |
2221 | decl_column, call_file, call_line, call_column, |
2222 | &frame_base)) { |
2223 | |
2224 | // Union of all ranges in the function DIE (if the function is |
2225 | // discontiguous) |
2226 | AddressRange func_range; |
2227 | lldb::addr_t lowest_func_addr = func_ranges.GetMinRangeBase(0); |
2228 | lldb::addr_t highest_func_addr = func_ranges.GetMaxRangeEnd(0); |
2229 | if (lowest_func_addr != LLDB_INVALID_ADDRESS0xffffffffffffffffULL && |
2230 | lowest_func_addr <= highest_func_addr) { |
2231 | ModuleSP module_sp(die.GetModule()); |
2232 | func_range.GetBaseAddress().ResolveAddressUsingFileSections( |
2233 | lowest_func_addr, module_sp->GetSectionList()); |
2234 | if (func_range.GetBaseAddress().IsValid()) |
2235 | func_range.SetByteSize(highest_func_addr - lowest_func_addr); |
2236 | } |
2237 | |
2238 | if (func_range.GetBaseAddress().IsValid()) { |
2239 | Mangled func_name; |
2240 | if (mangled) |
2241 | func_name.SetValue(ConstString(mangled), true); |
2242 | else if ((die.GetParent().Tag() == DW_TAG_compile_unit || |
2243 | die.GetParent().Tag() == DW_TAG_partial_unit) && |
2244 | Language::LanguageIsCPlusPlus( |
2245 | SymbolFileDWARF::GetLanguage(*die.GetCU())) && |
2246 | !Language::LanguageIsObjC( |
2247 | SymbolFileDWARF::GetLanguage(*die.GetCU())) && |
2248 | name && strcmp(name, "main") != 0) { |
2249 | // If the mangled name is not present in the DWARF, generate the |
2250 | // demangled name using the decl context. We skip if the function is |
2251 | // "main" as its name is never mangled. |
2252 | bool is_static = false; |
2253 | bool is_variadic = false; |
2254 | bool has_template_params = false; |
2255 | unsigned type_quals = 0; |
2256 | std::vector<CompilerType> param_types; |
2257 | std::vector<clang::ParmVarDecl *> param_decls; |
2258 | StreamString sstr; |
2259 | |
2260 | DWARFDeclContext decl_ctx = SymbolFileDWARF::GetDWARFDeclContext(die); |
2261 | sstr << decl_ctx.GetQualifiedName(); |
2262 | |
2263 | clang::DeclContext *containing_decl_ctx = |
2264 | GetClangDeclContextContainingDIE(die, nullptr); |
2265 | ParseChildParameters(containing_decl_ctx, die, true, is_static, |
2266 | is_variadic, has_template_params, param_types, |
2267 | param_decls, type_quals); |
2268 | sstr << "("; |
2269 | for (size_t i = 0; i < param_types.size(); i++) { |
2270 | if (i > 0) |
2271 | sstr << ", "; |
2272 | sstr << param_types[i].GetTypeName(); |
2273 | } |
2274 | if (is_variadic) |
2275 | sstr << ", ..."; |
2276 | sstr << ")"; |
2277 | if (type_quals & clang::Qualifiers::Const) |
2278 | sstr << " const"; |
2279 | |
2280 | func_name.SetValue(ConstString(sstr.GetString()), false); |
2281 | } else |
2282 | func_name.SetValue(ConstString(name), false); |
2283 | |
2284 | FunctionSP func_sp; |
2285 | std::unique_ptr<Declaration> decl_up; |
2286 | if (decl_file != 0 || decl_line != 0 || decl_column != 0) |
2287 | decl_up = std::make_unique<Declaration>(die.GetCU()->GetFile(decl_file), |
2288 | decl_line, decl_column); |
2289 | |
2290 | SymbolFileDWARF *dwarf = die.GetDWARF(); |
2291 | // Supply the type _only_ if it has already been parsed |
2292 | Type *func_type = dwarf->GetDIEToType().lookup(die.GetDIE()); |
2293 | |
2294 | assert(func_type == nullptr || func_type != DIE_IS_BEING_PARSED)((void)0); |
2295 | |
2296 | if (dwarf->FixupAddress(func_range.GetBaseAddress())) { |
2297 | const user_id_t func_user_id = die.GetID(); |
2298 | func_sp = |
2299 | std::make_shared<Function>(&comp_unit, |
2300 | func_user_id, // UserID is the DIE offset |
2301 | func_user_id, func_name, func_type, |
2302 | func_range); // first address range |
2303 | |
2304 | if (func_sp.get() != nullptr) { |
2305 | if (frame_base.IsValid()) |
2306 | func_sp->GetFrameBaseExpression() = frame_base; |
2307 | comp_unit.AddFunction(func_sp); |
2308 | return func_sp.get(); |
2309 | } |
2310 | } |
2311 | } |
2312 | } |
2313 | return nullptr; |
2314 | } |
2315 | |
2316 | void DWARFASTParserClang::ParseSingleMember( |
2317 | const DWARFDIE &die, const DWARFDIE &parent_die, |
2318 | const lldb_private::CompilerType &class_clang_type, |
2319 | lldb::AccessType default_accessibility, |
2320 | DelayedPropertyList &delayed_properties, |
2321 | lldb_private::ClangASTImporter::LayoutInfo &layout_info, |
2322 | FieldInfo &last_field_info) { |
2323 | ModuleSP module_sp = parent_die.GetDWARF()->GetObjectFile()->GetModule(); |
2324 | const dw_tag_t tag = die.Tag(); |
2325 | // Get the parent byte size so we can verify any members will fit |
2326 | const uint64_t parent_byte_size = |
2327 | parent_die.GetAttributeValueAsUnsigned(DW_AT_byte_size, UINT64_MAX0xffffffffffffffffULL); |
2328 | const uint64_t parent_bit_size = |
2329 | parent_byte_size == UINT64_MAX0xffffffffffffffffULL ? UINT64_MAX0xffffffffffffffffULL : parent_byte_size * 8; |
2330 | |
2331 | DWARFAttributes attributes; |
2332 | const size_t num_attributes = die.GetAttributes(attributes); |
2333 | if (num_attributes == 0) |
2334 | return; |
2335 | |
2336 | const char *name = nullptr; |
2337 | const char *prop_name = nullptr; |
2338 | const char *prop_getter_name = nullptr; |
2339 | const char *prop_setter_name = nullptr; |
2340 | uint32_t prop_attributes = 0; |
2341 | |
2342 | bool is_artificial = false; |
2343 | DWARFFormValue encoding_form; |
2344 | AccessType accessibility = eAccessNone; |
2345 | uint32_t member_byte_offset = |
2346 | (parent_die.Tag() == DW_TAG_union_type) ? 0 : UINT32_MAX0xffffffffU; |
2347 | llvm::Optional<uint64_t> byte_size; |
2348 | int64_t bit_offset = 0; |
2349 | uint64_t data_bit_offset = UINT64_MAX0xffffffffffffffffULL; |
2350 | size_t bit_size = 0; |
2351 | bool is_external = |
2352 | false; // On DW_TAG_members, this means the member is static |
2353 | uint32_t i; |
2354 | for (i = 0; i < num_attributes && !is_artificial; ++i) { |
2355 | const dw_attr_t attr = attributes.AttributeAtIndex(i); |
2356 | DWARFFormValue form_value; |
2357 | if (attributes.ExtractFormValueAtIndex(i, form_value)) { |
2358 | // DW_AT_data_member_location indicates the byte offset of the |
2359 | // word from the base address of the structure. |
2360 | // |
2361 | // DW_AT_bit_offset indicates how many bits into the word |
2362 | // (according to the host endianness) the low-order bit of the |
2363 | // field starts. AT_bit_offset can be negative. |
2364 | // |
2365 | // DW_AT_bit_size indicates the size of the field in bits. |
2366 | switch (attr) { |
2367 | case DW_AT_name: |
2368 | name = form_value.AsCString(); |
2369 | break; |
2370 | case DW_AT_type: |
2371 | encoding_form = form_value; |
2372 | break; |
2373 | case DW_AT_bit_offset: |
2374 | bit_offset = form_value.Signed(); |
2375 | break; |
2376 | case DW_AT_bit_size: |
2377 | bit_size = form_value.Unsigned(); |
2378 | break; |
2379 | case DW_AT_byte_size: |
2380 | byte_size = form_value.Unsigned(); |
2381 | break; |
2382 | case DW_AT_data_bit_offset: |
2383 | data_bit_offset = form_value.Unsigned(); |
2384 | break; |
2385 | case DW_AT_data_member_location: |
2386 | if (form_value.BlockData()) { |
2387 | Value initialValue(0); |
2388 | Value memberOffset(0); |
2389 | const DWARFDataExtractor &debug_info_data = die.GetData(); |
2390 | uint32_t block_length = form_value.Unsigned(); |
2391 | uint32_t block_offset = |
2392 | form_value.BlockData() - debug_info_data.GetDataStart(); |
2393 | if (DWARFExpression::Evaluate( |
2394 | nullptr, // ExecutionContext * |
2395 | nullptr, // RegisterContext * |
2396 | module_sp, |
2397 | DataExtractor(debug_info_data, block_offset, block_length), |
2398 | die.GetCU(), eRegisterKindDWARF, &initialValue, nullptr, |
2399 | memberOffset, nullptr)) { |
2400 | member_byte_offset = memberOffset.ResolveValue(nullptr).UInt(); |
2401 | } |
2402 | } else { |
2403 | // With DWARF 3 and later, if the value is an integer constant, |
2404 | // this form value is the offset in bytes from the beginning of |
2405 | // the containing entity. |
2406 | member_byte_offset = form_value.Unsigned(); |
2407 | } |
2408 | break; |
2409 | |
2410 | case DW_AT_accessibility: |
2411 | accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned()); |
2412 | break; |
2413 | case DW_AT_artificial: |
2414 | is_artificial = form_value.Boolean(); |
2415 | break; |
2416 | case DW_AT_APPLE_property_name: |
2417 | prop_name = form_value.AsCString(); |
2418 | break; |
2419 | case DW_AT_APPLE_property_getter: |
2420 | prop_getter_name = form_value.AsCString(); |
2421 | break; |
2422 | case DW_AT_APPLE_property_setter: |
2423 | prop_setter_name = form_value.AsCString(); |
2424 | break; |
2425 | case DW_AT_APPLE_property_attribute: |
2426 | prop_attributes = form_value.Unsigned(); |
2427 | break; |
2428 | case DW_AT_external: |
2429 | is_external = form_value.Boolean(); |
2430 | break; |
2431 | |
2432 | default: |
2433 | case DW_AT_declaration: |
2434 | case DW_AT_description: |
2435 | case DW_AT_mutable: |
2436 | case DW_AT_visibility: |
2437 | case DW_AT_sibling: |
2438 | break; |
2439 | } |
2440 | } |
2441 | } |
2442 | |
2443 | if (prop_name) { |
2444 | ConstString fixed_setter; |
2445 | |
2446 | // Check if the property getter/setter were provided as full names. |
2447 | // We want basenames, so we extract them. |
2448 | |
2449 | if (prop_getter_name && prop_getter_name[0] == '-') { |
2450 | ObjCLanguage::MethodName prop_getter_method(prop_getter_name, true); |
2451 | prop_getter_name = prop_getter_method.GetSelector().GetCString(); |
2452 | } |
2453 | |
2454 | if (prop_setter_name && prop_setter_name[0] == '-') { |
2455 | ObjCLanguage::MethodName prop_setter_method(prop_setter_name, true); |
2456 | prop_setter_name = prop_setter_method.GetSelector().GetCString(); |
2457 | } |
2458 | |
2459 | // If the names haven't been provided, they need to be filled in. |
2460 | |
2461 | if (!prop_getter_name) { |
2462 | prop_getter_name = prop_name; |
2463 | } |
2464 | if (!prop_setter_name && prop_name[0] && |
2465 | !(prop_attributes & DW_APPLE_PROPERTY_readonly)) { |
2466 | StreamString ss; |
2467 | |
2468 | ss.Printf("set%c%s:", toupper(prop_name[0]), &prop_name[1]); |
2469 | |
2470 | fixed_setter.SetString(ss.GetString()); |
2471 | prop_setter_name = fixed_setter.GetCString(); |
2472 | } |
2473 | } |
2474 | |
2475 | // Clang has a DWARF generation bug where sometimes it represents |
2476 | // fields that are references with bad byte size and bit size/offset |
2477 | // information such as: |
2478 | // |
2479 | // DW_AT_byte_size( 0x00 ) |
2480 | // DW_AT_bit_size( 0x40 ) |
2481 | // DW_AT_bit_offset( 0xffffffffffffffc0 ) |
2482 | // |
2483 | // So check the bit offset to make sure it is sane, and if the values |
2484 | // are not sane, remove them. If we don't do this then we will end up |
2485 | // with a crash if we try to use this type in an expression when clang |
2486 | // becomes unhappy with its recycled debug info. |
2487 | |
2488 | if (byte_size.getValueOr(0) == 0 && bit_offset < 0) { |
2489 | bit_size = 0; |
2490 | bit_offset = 0; |
2491 | } |
2492 | |
2493 | const bool class_is_objc_object_or_interface = |
2494 | TypeSystemClang::IsObjCObjectOrInterfaceType(class_clang_type); |
2495 | |
2496 | // FIXME: Make Clang ignore Objective-C accessibility for expressions |
2497 | if (class_is_objc_object_or_interface) |
2498 | accessibility = eAccessNone; |
2499 | |
2500 | // Handle static members |
2501 | if (is_external && member_byte_offset == UINT32_MAX0xffffffffU) { |
2502 | Type *var_type = die.ResolveTypeUID(encoding_form.Reference()); |
2503 | |
2504 | if (var_type) { |
2505 | if (accessibility == eAccessNone) |
2506 | accessibility = eAccessPublic; |
2507 | TypeSystemClang::AddVariableToRecordType( |
2508 | class_clang_type, name, var_type->GetForwardCompilerType(), |
2509 | accessibility); |
2510 | } |
2511 | return; |
2512 | } |
2513 | |
2514 | if (!is_artificial) { |
2515 | Type *member_type = die.ResolveTypeUID(encoding_form.Reference()); |
2516 | |
2517 | clang::FieldDecl *field_decl = nullptr; |
2518 | const uint64_t character_width = 8; |
2519 | const uint64_t word_width = 32; |
2520 | if (tag == DW_TAG_member) { |
2521 | if (member_type) { |
2522 | CompilerType member_clang_type = member_type->GetLayoutCompilerType(); |
2523 | |
2524 | if (accessibility == eAccessNone) |
2525 | accessibility = default_accessibility; |
2526 | |
2527 | uint64_t field_bit_offset = |
2528 | (member_byte_offset == UINT32_MAX0xffffffffU ? 0 : (member_byte_offset * 8)); |
2529 | |
2530 | if (bit_size > 0) { |
2531 | FieldInfo this_field_info; |
2532 | this_field_info.bit_offset = field_bit_offset; |
2533 | this_field_info.bit_size = bit_size; |
2534 | |
2535 | if (data_bit_offset != UINT64_MAX0xffffffffffffffffULL) { |
2536 | this_field_info.bit_offset = data_bit_offset; |
2537 | } else { |
2538 | if (!byte_size) |
2539 | byte_size = member_type->GetByteSize(nullptr); |
2540 | |
2541 | ObjectFile *objfile = die.GetDWARF()->GetObjectFile(); |
2542 | if (objfile->GetByteOrder() == eByteOrderLittle) { |
2543 | this_field_info.bit_offset += byte_size.getValueOr(0) * 8; |
2544 | this_field_info.bit_offset -= (bit_offset + bit_size); |
2545 | } else { |
2546 | this_field_info.bit_offset += bit_offset; |
2547 | } |
2548 | } |
2549 | |
2550 | // The ObjC runtime knows the byte offset but we still need to provide |
2551 | // the bit-offset in the layout. It just means something different then |
2552 | // what it does in C and C++. So we skip this check for ObjC types. |
2553 | // |
2554 | // We also skip this for fields of a union since they will all have a |
2555 | // zero offset. |
2556 | if (!TypeSystemClang::IsObjCObjectOrInterfaceType(class_clang_type) && |
2557 | !(parent_die.Tag() == DW_TAG_union_type && this_field_info.bit_offset == 0) && |
2558 | ((this_field_info.bit_offset >= parent_bit_size) || |
2559 | (last_field_info.IsBitfield() && |
2560 | !last_field_info.NextBitfieldOffsetIsValid( |
2561 | this_field_info.bit_offset)))) { |
2562 | ObjectFile *objfile = die.GetDWARF()->GetObjectFile(); |
2563 | objfile->GetModule()->ReportWarning( |
2564 | "0x%8.8" PRIx64"llx" ": %s bitfield named \"%s\" has invalid " |
2565 | "bit offset (0x%8.8" PRIx64"llx" |
2566 | ") member will be ignored. Please file a bug against the " |
2567 | "compiler and include the preprocessed output for %s\n", |
2568 | die.GetID(), DW_TAG_value_to_name(tag), name, |
2569 | this_field_info.bit_offset, GetUnitName(parent_die).c_str()); |
2570 | return; |
2571 | } |
2572 | |
2573 | // Update the field bit offset we will report for layout |
2574 | field_bit_offset = this_field_info.bit_offset; |
2575 | |
2576 | // Objective-C has invalid DW_AT_bit_offset values in older |
2577 | // versions of clang, so we have to be careful and only insert |
2578 | // unnamed bitfields if we have a new enough clang. |
2579 | bool detect_unnamed_bitfields = true; |
2580 | |
2581 | if (class_is_objc_object_or_interface) |
2582 | detect_unnamed_bitfields = |
2583 | die.GetCU()->Supports_unnamed_objc_bitfields(); |
2584 | |
2585 | if (detect_unnamed_bitfields) { |
2586 | clang::Optional<FieldInfo> unnamed_field_info; |
2587 | uint64_t last_field_end = 0; |
2588 | |
2589 | last_field_end = |
2590 | last_field_info.bit_offset + last_field_info.bit_size; |
2591 | |
2592 | if (!last_field_info.IsBitfield()) { |
2593 | // The last field was not a bit-field... |
2594 | // but if it did take up the entire word then we need to extend |
2595 | // last_field_end so the bit-field does not step into the last |
2596 | // fields padding. |
2597 | if (last_field_end != 0 && ((last_field_end % word_width) != 0)) |
2598 | last_field_end += word_width - (last_field_end % word_width); |
2599 | } |
2600 | |
2601 | // If we have a gap between the last_field_end and the current |
2602 | // field we have an unnamed bit-field. |
2603 | // If we have a base class, we assume there is no unnamed |
2604 | // bit-field if this is the first field since the gap can be |
2605 | // attributed to the members from the base class. This assumption |
2606 | // is not correct if the first field of the derived class is |
2607 | // indeed an unnamed bit-field. We currently do not have the |
2608 | // machinary to track the offset of the last field of classes we |
2609 | // have seen before, so we are not handling this case. |
2610 | if (this_field_info.bit_offset != last_field_end && |
2611 | this_field_info.bit_offset > last_field_end && |
2612 | !(last_field_info.bit_offset == 0 && |
2613 | last_field_info.bit_size == 0 && |
2614 | layout_info.base_offsets.size() != 0)) { |
2615 | unnamed_field_info = FieldInfo{}; |
2616 | unnamed_field_info->bit_size = |
2617 | this_field_info.bit_offset - last_field_end; |
2618 | unnamed_field_info->bit_offset = last_field_end; |
2619 | } |
2620 | |
2621 | if (unnamed_field_info) { |
2622 | clang::FieldDecl *unnamed_bitfield_decl = |
2623 | TypeSystemClang::AddFieldToRecordType( |
2624 | class_clang_type, llvm::StringRef(), |
2625 | m_ast.GetBuiltinTypeForEncodingAndBitSize(eEncodingSint, |
2626 | word_width), |
2627 | accessibility, unnamed_field_info->bit_size); |
2628 | |
2629 | layout_info.field_offsets.insert(std::make_pair( |
2630 | unnamed_bitfield_decl, unnamed_field_info->bit_offset)); |
2631 | } |
2632 | } |
2633 | |
2634 | last_field_info = this_field_info; |
2635 | last_field_info.SetIsBitfield(true); |
2636 | } else { |
2637 | last_field_info.bit_offset = field_bit_offset; |
2638 | |
2639 | if (llvm::Optional<uint64_t> clang_type_size = |
2640 | member_type->GetByteSize(nullptr)) { |
2641 | last_field_info.bit_size = *clang_type_size * character_width; |
2642 | } |
2643 | |
2644 | last_field_info.SetIsBitfield(false); |
2645 | } |
2646 | |
2647 | if (!member_clang_type.IsCompleteType()) |
2648 | member_clang_type.GetCompleteType(); |
2649 | |
2650 | { |
2651 | // Older versions of clang emit array[0] and array[1] in the |
2652 | // same way (<rdar://problem/12566646>). If the current field |
2653 | // is at the end of the structure, then there is definitely no |
2654 | // room for extra elements and we override the type to |
2655 | // array[0]. |
2656 | |
2657 | CompilerType member_array_element_type; |
2658 | uint64_t member_array_size; |
2659 | bool member_array_is_incomplete; |
2660 | |
2661 | if (member_clang_type.IsArrayType(&member_array_element_type, |
2662 | &member_array_size, |
2663 | &member_array_is_incomplete) && |
2664 | !member_array_is_incomplete) { |
2665 | uint64_t parent_byte_size = |
2666 | parent_die.GetAttributeValueAsUnsigned(DW_AT_byte_size, |
2667 | UINT64_MAX0xffffffffffffffffULL); |
2668 | |
2669 | if (member_byte_offset >= parent_byte_size) { |
2670 | if (member_array_size != 1 && |
2671 | (member_array_size != 0 || |
2672 | member_byte_offset > parent_byte_size)) { |
2673 | module_sp->ReportError( |
2674 | "0x%8.8" PRIx64"llx" |
2675 | ": DW_TAG_member '%s' refers to type 0x%8.8x" |
2676 | " which extends beyond the bounds of 0x%8.8" PRIx64"llx", |
2677 | die.GetID(), name, encoding_form.Reference().GetOffset(), |
2678 | parent_die.GetID()); |
2679 | } |
2680 | |
2681 | member_clang_type = |
2682 | m_ast.CreateArrayType(member_array_element_type, 0, false); |
2683 | } |
2684 | } |
2685 | } |
2686 | |
2687 | RequireCompleteType(member_clang_type); |
2688 | |
2689 | field_decl = TypeSystemClang::AddFieldToRecordType( |
2690 | class_clang_type, name, member_clang_type, accessibility, |
2691 | bit_size); |
2692 | |
2693 | m_ast.SetMetadataAsUserID(field_decl, die.GetID()); |
2694 | |
2695 | layout_info.field_offsets.insert( |
2696 | std::make_pair(field_decl, field_bit_offset)); |
2697 | } else { |
2698 | if (name) |
2699 | module_sp->ReportError( |
2700 | "0x%8.8" PRIx64"llx" ": DW_TAG_member '%s' refers to type 0x%8.8x" |
2701 | " which was unable to be parsed", |
2702 | die.GetID(), name, encoding_form.Reference().GetOffset()); |
2703 | else |
2704 | module_sp->ReportError( |
2705 | "0x%8.8" PRIx64"llx" ": DW_TAG_member refers to type 0x%8.8x" |
2706 | " which was unable to be parsed", |
2707 | die.GetID(), encoding_form.Reference().GetOffset()); |
2708 | } |
2709 | } |
2710 | |
2711 | if (prop_name != nullptr && member_type) { |
2712 | clang::ObjCIvarDecl *ivar_decl = nullptr; |
2713 | |
2714 | if (field_decl) { |
2715 | ivar_decl = clang::dyn_cast<clang::ObjCIvarDecl>(field_decl); |
2716 | assert(ivar_decl != nullptr)((void)0); |
2717 | } |
2718 | |
2719 | ClangASTMetadata metadata; |
2720 | metadata.SetUserID(die.GetID()); |
2721 | delayed_properties.push_back(DelayedAddObjCClassProperty( |
2722 | class_clang_type, prop_name, member_type->GetLayoutCompilerType(), |
2723 | ivar_decl, prop_setter_name, prop_getter_name, prop_attributes, |
2724 | &metadata)); |
2725 | |
2726 | if (ivar_decl) |
2727 | m_ast.SetMetadataAsUserID(ivar_decl, die.GetID()); |
2728 | } |
2729 | } |
2730 | } |
2731 | |
2732 | bool DWARFASTParserClang::ParseChildMembers( |
2733 | const DWARFDIE &parent_die, CompilerType &class_clang_type, |
2734 | std::vector<std::unique_ptr<clang::CXXBaseSpecifier>> &base_classes, |
2735 | std::vector<DWARFDIE> &member_function_dies, |
2736 | DelayedPropertyList &delayed_properties, AccessType &default_accessibility, |
2737 | ClangASTImporter::LayoutInfo &layout_info) { |
2738 | if (!parent_die) |
2739 | return false; |
2740 | |
2741 | FieldInfo last_field_info; |
2742 | |
2743 | ModuleSP module_sp = parent_die.GetDWARF()->GetObjectFile()->GetModule(); |
2744 | TypeSystemClang *ast = |
2745 | llvm::dyn_cast_or_null<TypeSystemClang>(class_clang_type.GetTypeSystem()); |
2746 | if (ast == nullptr) |
2747 | return false; |
2748 | |
2749 | for (DWARFDIE die : parent_die.children()) { |
2750 | dw_tag_t tag = die.Tag(); |
2751 | |
2752 | switch (tag) { |
2753 | case DW_TAG_member: |
2754 | case DW_TAG_APPLE_property: |
2755 | ParseSingleMember(die, parent_die, class_clang_type, |
2756 | default_accessibility, delayed_properties, layout_info, |
2757 | last_field_info); |
2758 | break; |
2759 | |
2760 | case DW_TAG_subprogram: |
2761 | // Let the type parsing code handle this one for us. |
2762 | member_function_dies.push_back(die); |
2763 | break; |
2764 | |
2765 | case DW_TAG_inheritance: { |
2766 | // TODO: implement DW_TAG_inheritance type parsing |
2767 | DWARFAttributes attributes; |
2768 | const size_t num_attributes = die.GetAttributes(attributes); |
2769 | if (num_attributes > 0) { |
2770 | DWARFFormValue encoding_form; |
2771 | AccessType accessibility = default_accessibility; |
2772 | bool is_virtual = false; |
2773 | bool is_base_of_class = true; |
2774 | off_t member_byte_offset = 0; |
2775 | uint32_t i; |
2776 | for (i = 0; i < num_attributes; ++i) { |
2777 | const dw_attr_t attr = attributes.AttributeAtIndex(i); |
2778 | DWARFFormValue form_value; |
2779 | if (attributes.ExtractFormValueAtIndex(i, form_value)) { |
2780 | switch (attr) { |
2781 | case DW_AT_type: |
2782 | encoding_form = form_value; |
2783 | break; |
2784 | case DW_AT_data_member_location: |
2785 | if (form_value.BlockData()) { |
2786 | Value initialValue(0); |
2787 | Value memberOffset(0); |
2788 | const DWARFDataExtractor &debug_info_data = die.GetData(); |
2789 | uint32_t block_length = form_value.Unsigned(); |
2790 | uint32_t block_offset = |
2791 | form_value.BlockData() - debug_info_data.GetDataStart(); |
2792 | if (DWARFExpression::Evaluate( |
2793 | nullptr, nullptr, module_sp, |
2794 | DataExtractor(debug_info_data, block_offset, |
2795 | block_length), |
2796 | die.GetCU(), eRegisterKindDWARF, &initialValue, nullptr, |
2797 | memberOffset, nullptr)) { |
2798 | member_byte_offset = |
2799 | memberOffset.ResolveValue(nullptr).UInt(); |
2800 | } |
2801 | } else { |
2802 | // With DWARF 3 and later, if the value is an integer constant, |
2803 | // this form value is the offset in bytes from the beginning of |
2804 | // the containing entity. |
2805 | member_byte_offset = form_value.Unsigned(); |
2806 | } |
2807 | break; |
2808 | |
2809 | case DW_AT_accessibility: |
2810 | accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned()); |
2811 | break; |
2812 | |
2813 | case DW_AT_virtuality: |
2814 | is_virtual = form_value.Boolean(); |
2815 | break; |
2816 | |
2817 | case DW_AT_sibling: |
2818 | break; |
2819 | |
2820 | default: |
2821 | break; |
2822 | } |
2823 | } |
2824 | } |
2825 | |
2826 | Type *base_class_type = die.ResolveTypeUID(encoding_form.Reference()); |
2827 | if (base_class_type == nullptr) { |
2828 | module_sp->ReportError("0x%8.8x: DW_TAG_inheritance failed to " |
2829 | "resolve the base class at 0x%8.8x" |
2830 | " from enclosing type 0x%8.8x. \nPlease file " |
2831 | "a bug and attach the file at the start of " |
2832 | "this error message", |
2833 | die.GetOffset(), |
2834 | encoding_form.Reference().GetOffset(), |
2835 | parent_die.GetOffset()); |
2836 | break; |
2837 | } |
2838 | |
2839 | CompilerType base_class_clang_type = |
2840 | base_class_type->GetFullCompilerType(); |
2841 | assert(base_class_clang_type)((void)0); |
2842 | if (TypeSystemClang::IsObjCObjectOrInterfaceType(class_clang_type)) { |
2843 | ast->SetObjCSuperClass(class_clang_type, base_class_clang_type); |
2844 | } else { |
2845 | std::unique_ptr<clang::CXXBaseSpecifier> result = |
2846 | ast->CreateBaseClassSpecifier( |
2847 | base_class_clang_type.GetOpaqueQualType(), accessibility, |
2848 | is_virtual, is_base_of_class); |
2849 | if (!result) |
2850 | break; |
2851 | |
2852 | base_classes.push_back(std::move(result)); |
2853 | |
2854 | if (is_virtual) { |
2855 | // Do not specify any offset for virtual inheritance. The DWARF |
2856 | // produced by clang doesn't give us a constant offset, but gives |
2857 | // us a DWARF expressions that requires an actual object in memory. |
2858 | // the DW_AT_data_member_location for a virtual base class looks |
2859 | // like: |
2860 | // DW_AT_data_member_location( DW_OP_dup, DW_OP_deref, |
2861 | // DW_OP_constu(0x00000018), DW_OP_minus, DW_OP_deref, |
2862 | // DW_OP_plus ) |
2863 | // Given this, there is really no valid response we can give to |
2864 | // clang for virtual base class offsets, and this should eventually |
2865 | // be removed from LayoutRecordType() in the external |
2866 | // AST source in clang. |
2867 | } else { |
2868 | layout_info.base_offsets.insert(std::make_pair( |
2869 | ast->GetAsCXXRecordDecl( |
2870 | base_class_clang_type.GetOpaqueQualType()), |
2871 | clang::CharUnits::fromQuantity(member_byte_offset))); |
2872 | } |
2873 | } |
2874 | } |
2875 | } break; |
2876 | |
2877 | default: |
2878 | break; |
2879 | } |
2880 | } |
2881 | |
2882 | return true; |
2883 | } |
2884 | |
2885 | size_t DWARFASTParserClang::ParseChildParameters( |
2886 | clang::DeclContext *containing_decl_ctx, const DWARFDIE &parent_die, |
2887 | bool skip_artificial, bool &is_static, bool &is_variadic, |
2888 | bool &has_template_params, std::vector<CompilerType> &function_param_types, |
2889 | std::vector<clang::ParmVarDecl *> &function_param_decls, |
2890 | unsigned &type_quals) { |
2891 | if (!parent_die) |
2892 | return 0; |
2893 | |
2894 | size_t arg_idx = 0; |
2895 | for (DWARFDIE die : parent_die.children()) { |
2896 | const dw_tag_t tag = die.Tag(); |
2897 | switch (tag) { |
2898 | case DW_TAG_formal_parameter: { |
2899 | DWARFAttributes attributes; |
2900 | const size_t num_attributes = die.GetAttributes(attributes); |
2901 | if (num_attributes > 0) { |
2902 | const char *name = nullptr; |
2903 | DWARFFormValue param_type_die_form; |
2904 | bool is_artificial = false; |
2905 | // one of None, Auto, Register, Extern, Static, PrivateExtern |
2906 | |
2907 | clang::StorageClass storage = clang::SC_None; |
2908 | uint32_t i; |
2909 | for (i = 0; i < num_attributes; ++i) { |
2910 | const dw_attr_t attr = attributes.AttributeAtIndex(i); |
2911 | DWARFFormValue form_value; |
2912 | if (attributes.ExtractFormValueAtIndex(i, form_value)) { |
2913 | switch (attr) { |
2914 | case DW_AT_name: |
2915 | name = form_value.AsCString(); |
2916 | break; |
2917 | case DW_AT_type: |
2918 | param_type_die_form = form_value; |
2919 | break; |
2920 | case DW_AT_artificial: |
2921 | is_artificial = form_value.Boolean(); |
2922 | break; |
2923 | case DW_AT_location: |
2924 | case DW_AT_const_value: |
2925 | case DW_AT_default_value: |
2926 | case DW_AT_description: |
2927 | case DW_AT_endianity: |
2928 | case DW_AT_is_optional: |
2929 | case DW_AT_segment: |
2930 | case DW_AT_variable_parameter: |
2931 | default: |
2932 | case DW_AT_abstract_origin: |
2933 | case DW_AT_sibling: |
2934 | break; |
2935 | } |
2936 | } |
2937 | } |
2938 | |
2939 | bool skip = false; |
2940 | if (skip_artificial && is_artificial) { |
2941 | // In order to determine if a C++ member function is "const" we |
2942 | // have to look at the const-ness of "this"... |
2943 | if (arg_idx == 0 && |
2944 | DeclKindIsCXXClass(containing_decl_ctx->getDeclKind()) && |
2945 | // Often times compilers omit the "this" name for the |
2946 | // specification DIEs, so we can't rely upon the name being in |
2947 | // the formal parameter DIE... |
2948 | (name == nullptr || ::strcmp(name, "this") == 0)) { |
2949 | Type *this_type = |
2950 | die.ResolveTypeUID(param_type_die_form.Reference()); |
2951 | if (this_type) { |
2952 | uint32_t encoding_mask = this_type->GetEncodingMask(); |
2953 | if (encoding_mask & Type::eEncodingIsPointerUID) { |
2954 | is_static = false; |
2955 | |
2956 | if (encoding_mask & (1u << Type::eEncodingIsConstUID)) |
2957 | type_quals |= clang::Qualifiers::Const; |
2958 | if (encoding_mask & (1u << Type::eEncodingIsVolatileUID)) |
2959 | type_quals |= clang::Qualifiers::Volatile; |
2960 | } |
2961 | } |
2962 | } |
2963 | skip = true; |
2964 | } |
2965 | |
2966 | if (!skip) { |
2967 | Type *type = die.ResolveTypeUID(param_type_die_form.Reference()); |
2968 | if (type) { |
2969 | function_param_types.push_back(type->GetForwardCompilerType()); |
2970 | |
2971 | clang::ParmVarDecl *param_var_decl = |
2972 | m_ast.CreateParameterDeclaration( |
2973 | containing_decl_ctx, GetOwningClangModule(die), name, |
2974 | type->GetForwardCompilerType(), storage); |
2975 | assert(param_var_decl)((void)0); |
2976 | function_param_decls.push_back(param_var_decl); |
2977 | |
2978 | m_ast.SetMetadataAsUserID(param_var_decl, die.GetID()); |
2979 | } |
2980 | } |
2981 | } |
2982 | arg_idx++; |
2983 | } break; |
2984 | |
2985 | case DW_TAG_unspecified_parameters: |
2986 | is_variadic = true; |
2987 | break; |
2988 | |
2989 | case DW_TAG_template_type_parameter: |
2990 | case DW_TAG_template_value_parameter: |
2991 | case DW_TAG_GNU_template_parameter_pack: |
2992 | // The one caller of this was never using the template_param_infos, and |
2993 | // the local variable was taking up a large amount of stack space in |
2994 | // SymbolFileDWARF::ParseType() so this was removed. If we ever need the |
2995 | // template params back, we can add them back. |
2996 | // ParseTemplateDIE (dwarf_cu, die, template_param_infos); |
2997 | has_template_params = true; |
2998 | break; |
2999 | |
3000 | default: |
3001 | break; |
3002 | } |
3003 | } |
3004 | return arg_idx; |
3005 | } |
3006 | |
3007 | llvm::Optional<SymbolFile::ArrayInfo> |
3008 | DWARFASTParser::ParseChildArrayInfo(const DWARFDIE &parent_die, |
3009 | const ExecutionContext *exe_ctx) { |
3010 | SymbolFile::ArrayInfo array_info; |
3011 | if (!parent_die) |
3012 | return llvm::None; |
3013 | |
3014 | for (DWARFDIE die : parent_die.children()) { |
3015 | const dw_tag_t tag = die.Tag(); |
3016 | if (tag != DW_TAG_subrange_type) |
3017 | continue; |
3018 | |
3019 | DWARFAttributes attributes; |
3020 | const size_t num_child_attributes = die.GetAttributes(attributes); |
3021 | if (num_child_attributes > 0) { |
3022 | uint64_t num_elements = 0; |
3023 | uint64_t lower_bound = 0; |
3024 | uint64_t upper_bound = 0; |
3025 | bool upper_bound_valid = false; |
3026 | uint32_t i; |
3027 | for (i = 0; i < num_child_attributes; ++i) { |
3028 | const dw_attr_t attr = attributes.AttributeAtIndex(i); |
3029 | DWARFFormValue form_value; |
3030 | if (attributes.ExtractFormValueAtIndex(i, form_value)) { |
3031 | switch (attr) { |
3032 | case DW_AT_name: |
3033 | break; |
3034 | |
3035 | case DW_AT_count: |
3036 | if (DWARFDIE var_die = die.GetReferencedDIE(DW_AT_count)) { |
3037 | if (var_die.Tag() == DW_TAG_variable) |
3038 | if (exe_ctx) { |
3039 | if (auto frame = exe_ctx->GetFrameSP()) { |
3040 | Status error; |
3041 | lldb::VariableSP var_sp; |
3042 | auto valobj_sp = frame->GetValueForVariableExpressionPath( |
3043 | var_die.GetName(), eNoDynamicValues, 0, var_sp, |
3044 | error); |
3045 | if (valobj_sp) { |
3046 | num_elements = valobj_sp->GetValueAsUnsigned(0); |
3047 | break; |
3048 | } |
3049 | } |
3050 | } |
3051 | } else |
3052 | num_elements = form_value.Unsigned(); |
3053 | break; |
3054 | |
3055 | case DW_AT_bit_stride: |
3056 | array_info.bit_stride = form_value.Unsigned(); |
3057 | break; |
3058 | |
3059 | case DW_AT_byte_stride: |
3060 | array_info.byte_stride = form_value.Unsigned(); |
3061 | break; |
3062 | |
3063 | case DW_AT_lower_bound: |
3064 | lower_bound = form_value.Unsigned(); |
3065 | break; |
3066 | |
3067 | case DW_AT_upper_bound: |
3068 | upper_bound_valid = true; |
3069 | upper_bound = form_value.Unsigned(); |
3070 | break; |
3071 | |
3072 | default: |
3073 | case DW_AT_abstract_origin: |
3074 | case DW_AT_accessibility: |
3075 | case DW_AT_allocated: |
3076 | case DW_AT_associated: |
3077 | case DW_AT_data_location: |
3078 | case DW_AT_declaration: |
3079 | case DW_AT_description: |
3080 | case DW_AT_sibling: |
3081 | case DW_AT_threads_scaled: |
3082 | case DW_AT_type: |
3083 | case DW_AT_visibility: |
3084 | break; |
3085 | } |
3086 | } |
3087 | } |
3088 | |
3089 | if (num_elements == 0) { |
3090 | if (upper_bound_valid && upper_bound >= lower_bound) |
3091 | num_elements = upper_bound - lower_bound + 1; |
3092 | } |
3093 | |
3094 | array_info.element_orders.push_back(num_elements); |
3095 | } |
3096 | } |
3097 | return array_info; |
3098 | } |
3099 | |
3100 | Type *DWARFASTParserClang::GetTypeForDIE(const DWARFDIE &die) { |
3101 | if (die) { |
3102 | SymbolFileDWARF *dwarf = die.GetDWARF(); |
3103 | DWARFAttributes attributes; |
3104 | const size_t num_attributes = die.GetAttributes(attributes); |
3105 | if (num_attributes > 0) { |
3106 | DWARFFormValue type_die_form; |
3107 | for (size_t i = 0; i < num_attributes; ++i) { |
3108 | dw_attr_t attr = attributes.AttributeAtIndex(i); |
3109 | DWARFFormValue form_value; |
3110 | |
3111 | if (attr == DW_AT_type && |
3112 | attributes.ExtractFormValueAtIndex(i, form_value)) |
3113 | return dwarf->ResolveTypeUID(form_value.Reference(), true); |
3114 | } |
3115 | } |
3116 | } |
3117 | |
3118 | return nullptr; |
3119 | } |
3120 | |
3121 | clang::Decl *DWARFASTParserClang::GetClangDeclForDIE(const DWARFDIE &die) { |
3122 | if (!die) |
3123 | return nullptr; |
3124 | |
3125 | switch (die.Tag()) { |
3126 | case DW_TAG_variable: |
3127 | case DW_TAG_constant: |
3128 | case DW_TAG_formal_parameter: |
3129 | case DW_TAG_imported_declaration: |
3130 | case DW_TAG_imported_module: |
3131 | break; |
3132 | default: |
3133 | return nullptr; |
3134 | } |
3135 | |
3136 | DIEToDeclMap::iterator cache_pos = m_die_to_decl.find(die.GetDIE()); |
3137 | if (cache_pos != m_die_to_decl.end()) |
3138 | return cache_pos->second; |
3139 | |
3140 | if (DWARFDIE spec_die = die.GetReferencedDIE(DW_AT_specification)) { |
3141 | clang::Decl *decl = GetClangDeclForDIE(spec_die); |
3142 | m_die_to_decl[die.GetDIE()] = decl; |
3143 | m_decl_to_die[decl].insert(die.GetDIE()); |
3144 | return decl; |
3145 | } |
3146 | |
3147 | if (DWARFDIE abstract_origin_die = |
3148 | die.GetReferencedDIE(DW_AT_abstract_origin)) { |
3149 | clang::Decl *decl = GetClangDeclForDIE(abstract_origin_die); |
3150 | m_die_to_decl[die.GetDIE()] = decl; |
3151 | m_decl_to_die[decl].insert(die.GetDIE()); |
3152 | return decl; |
3153 | } |
3154 | |
3155 | clang::Decl *decl = nullptr; |
3156 | switch (die.Tag()) { |
3157 | case DW_TAG_variable: |
3158 | case DW_TAG_constant: |
3159 | case DW_TAG_formal_parameter: { |
3160 | SymbolFileDWARF *dwarf = die.GetDWARF(); |
3161 | Type *type = GetTypeForDIE(die); |
3162 | if (dwarf && type) { |
3163 | const char *name = die.GetName(); |
3164 | clang::DeclContext *decl_context = |
3165 | TypeSystemClang::DeclContextGetAsDeclContext( |
3166 | dwarf->GetDeclContextContainingUID(die.GetID())); |
3167 | decl = m_ast.CreateVariableDeclaration( |
3168 | decl_context, GetOwningClangModule(die), name, |
3169 | ClangUtil::GetQualType(type->GetForwardCompilerType())); |
3170 | } |
3171 | break; |
3172 | } |
3173 | case DW_TAG_imported_declaration: { |
3174 | SymbolFileDWARF *dwarf = die.GetDWARF(); |
3175 | DWARFDIE imported_uid = die.GetAttributeValueAsReferenceDIE(DW_AT_import); |
3176 | if (imported_uid) { |
3177 | CompilerDecl imported_decl = SymbolFileDWARF::GetDecl(imported_uid); |
3178 | if (imported_decl) { |
3179 | clang::DeclContext *decl_context = |
3180 | TypeSystemClang::DeclContextGetAsDeclContext( |
3181 | dwarf->GetDeclContextContainingUID(die.GetID())); |
3182 | if (clang::NamedDecl *clang_imported_decl = |
3183 | llvm::dyn_cast<clang::NamedDecl>( |
3184 | (clang::Decl *)imported_decl.GetOpaqueDecl())) |
3185 | decl = m_ast.CreateUsingDeclaration( |
3186 | decl_context, OptionalClangModuleID(), clang_imported_decl); |
3187 | } |
3188 | } |
3189 | break; |
3190 | } |
3191 | case DW_TAG_imported_module: { |
3192 | SymbolFileDWARF *dwarf = die.GetDWARF(); |
3193 | DWARFDIE imported_uid = die.GetAttributeValueAsReferenceDIE(DW_AT_import); |
3194 | |
3195 | if (imported_uid) { |
3196 | CompilerDeclContext imported_decl_ctx = |
3197 | SymbolFileDWARF::GetDeclContext(imported_uid); |
3198 | if (imported_decl_ctx) { |
3199 | clang::DeclContext *decl_context = |
3200 | TypeSystemClang::DeclContextGetAsDeclContext( |
3201 | dwarf->GetDeclContextContainingUID(die.GetID())); |
3202 | if (clang::NamespaceDecl *ns_decl = |
3203 | TypeSystemClang::DeclContextGetAsNamespaceDecl( |
3204 | imported_decl_ctx)) |
3205 | decl = m_ast.CreateUsingDirectiveDeclaration( |
3206 | decl_context, OptionalClangModuleID(), ns_decl); |
3207 | } |
3208 | } |
3209 | break; |
3210 | } |
3211 | default: |
3212 | break; |
3213 | } |
3214 | |
3215 | m_die_to_decl[die.GetDIE()] = decl; |
3216 | m_decl_to_die[decl].insert(die.GetDIE()); |
3217 | |
3218 | return decl; |
3219 | } |
3220 | |
3221 | clang::DeclContext * |
3222 | DWARFASTParserClang::GetClangDeclContextForDIE(const DWARFDIE &die) { |
3223 | if (die) { |
3224 | clang::DeclContext *decl_ctx = GetCachedClangDeclContextForDIE(die); |
3225 | if (decl_ctx) |
3226 | return decl_ctx; |
3227 | |
3228 | bool try_parsing_type = true; |
3229 | switch (die.Tag()) { |
3230 | case DW_TAG_compile_unit: |
3231 | case DW_TAG_partial_unit: |
3232 | decl_ctx = m_ast.GetTranslationUnitDecl(); |
3233 | try_parsing_type = false; |
3234 | break; |
3235 | |
3236 | case DW_TAG_namespace: |
3237 | decl_ctx = ResolveNamespaceDIE(die); |
3238 | try_parsing_type = false; |
3239 | break; |
3240 | |
3241 | case DW_TAG_lexical_block: |
3242 | decl_ctx = GetDeclContextForBlock(die); |
3243 | try_parsing_type = false; |
3244 | break; |
3245 | |
3246 | default: |
3247 | break; |
3248 | } |
3249 | |
3250 | if (decl_ctx == nullptr && try_parsing_type) { |
3251 | Type *type = die.GetDWARF()->ResolveType(die); |
3252 | if (type) |
3253 | decl_ctx = GetCachedClangDeclContextForDIE(die); |
3254 | } |
3255 | |
3256 | if (decl_ctx) { |
3257 | LinkDeclContextToDIE(decl_ctx, die); |
3258 | return decl_ctx; |
3259 | } |
3260 | } |
3261 | return nullptr; |
3262 | } |
3263 | |
3264 | OptionalClangModuleID |
3265 | DWARFASTParserClang::GetOwningClangModule(const DWARFDIE &die) { |
3266 | if (!die.IsValid()) |
3267 | return {}; |
3268 | |
3269 | for (DWARFDIE parent = die.GetParent(); parent.IsValid(); |
3270 | parent = parent.GetParent()) { |
3271 | const dw_tag_t tag = parent.Tag(); |
3272 | if (tag == DW_TAG_module) { |
3273 | DWARFDIE module_die = parent; |
3274 | auto it = m_die_to_module.find(module_die.GetDIE()); |
3275 | if (it != m_die_to_module.end()) |
3276 | return it->second; |
3277 | const char *name = module_die.GetAttributeValueAsString(DW_AT_name, 0); |
3278 | if (!name) |
3279 | return {}; |
3280 | |
3281 | OptionalClangModuleID id = |
3282 | m_ast.GetOrCreateClangModule(name, GetOwningClangModule(module_die)); |
3283 | m_die_to_module.insert({module_die.GetDIE(), id}); |
3284 | return id; |
3285 | } |
3286 | } |
3287 | return {}; |
3288 | } |
3289 | |
3290 | static bool IsSubroutine(const DWARFDIE &die) { |
3291 | switch (die.Tag()) { |
3292 | case DW_TAG_subprogram: |
3293 | case DW_TAG_inlined_subroutine: |
3294 | return true; |
3295 | default: |
3296 | return false; |
3297 | } |
3298 | } |
3299 | |
3300 | static DWARFDIE GetContainingFunctionWithAbstractOrigin(const DWARFDIE &die) { |
3301 | for (DWARFDIE candidate = die; candidate; candidate = candidate.GetParent()) { |
3302 | if (IsSubroutine(candidate)) { |
3303 | if (candidate.GetReferencedDIE(DW_AT_abstract_origin)) { |
3304 | return candidate; |
3305 | } else { |
3306 | return DWARFDIE(); |
3307 | } |
3308 | } |
3309 | } |
3310 | assert(0 && "Shouldn't call GetContainingFunctionWithAbstractOrigin on "((void)0) |
3311 | "something not in a function")((void)0); |
3312 | return DWARFDIE(); |
3313 | } |
3314 | |
3315 | static DWARFDIE FindAnyChildWithAbstractOrigin(const DWARFDIE &context) { |
3316 | for (DWARFDIE candidate : context.children()) { |
3317 | if (candidate.GetReferencedDIE(DW_AT_abstract_origin)) { |
3318 | return candidate; |
3319 | } |
3320 | } |
3321 | return DWARFDIE(); |
3322 | } |
3323 | |
3324 | static DWARFDIE FindFirstChildWithAbstractOrigin(const DWARFDIE &block, |
3325 | const DWARFDIE &function) { |
3326 | assert(IsSubroutine(function))((void)0); |
3327 | for (DWARFDIE context = block; context != function.GetParent(); |
3328 | context = context.GetParent()) { |
3329 | assert(!IsSubroutine(context) || context == function)((void)0); |
3330 | if (DWARFDIE child = FindAnyChildWithAbstractOrigin(context)) { |
3331 | return child; |
3332 | } |
3333 | } |
3334 | return DWARFDIE(); |
3335 | } |
3336 | |
3337 | clang::DeclContext * |
3338 | DWARFASTParserClang::GetDeclContextForBlock(const DWARFDIE &die) { |
3339 | assert(die.Tag() == DW_TAG_lexical_block)((void)0); |
3340 | DWARFDIE containing_function_with_abstract_origin = |
3341 | GetContainingFunctionWithAbstractOrigin(die); |
3342 | if (!containing_function_with_abstract_origin) { |
3343 | return (clang::DeclContext *)ResolveBlockDIE(die); |
3344 | } |
3345 | DWARFDIE child = FindFirstChildWithAbstractOrigin( |
3346 | die, containing_function_with_abstract_origin); |
3347 | CompilerDeclContext decl_context = |
3348 | GetDeclContextContainingUIDFromDWARF(child); |
3349 | return (clang::DeclContext *)decl_context.GetOpaqueDeclContext(); |
3350 | } |
3351 | |
3352 | clang::BlockDecl *DWARFASTParserClang::ResolveBlockDIE(const DWARFDIE &die) { |
3353 | if (die && die.Tag() == DW_TAG_lexical_block) { |
3354 | clang::BlockDecl *decl = |
3355 | llvm::cast_or_null<clang::BlockDecl>(m_die_to_decl_ctx[die.GetDIE()]); |
3356 | |
3357 | if (!decl) { |
3358 | DWARFDIE decl_context_die; |
3359 | clang::DeclContext *decl_context = |
3360 | GetClangDeclContextContainingDIE(die, &decl_context_die); |
3361 | decl = |
3362 | m_ast.CreateBlockDeclaration(decl_context, GetOwningClangModule(die)); |
3363 | |
3364 | if (decl) |
3365 | LinkDeclContextToDIE((clang::DeclContext *)decl, die); |
3366 | } |
3367 | |
3368 | return decl; |
3369 | } |
3370 | return nullptr; |
3371 | } |
3372 | |
3373 | clang::NamespaceDecl * |
3374 | DWARFASTParserClang::ResolveNamespaceDIE(const DWARFDIE &die) { |
3375 | if (die && die.Tag() == DW_TAG_namespace) { |
3376 | // See if we already parsed this namespace DIE and associated it with a |
3377 | // uniqued namespace declaration |
3378 | clang::NamespaceDecl *namespace_decl = |
3379 | static_cast<clang::NamespaceDecl *>(m_die_to_decl_ctx[die.GetDIE()]); |
3380 | if (namespace_decl) |
3381 | return namespace_decl; |
3382 | else { |
3383 | const char *namespace_name = die.GetName(); |
3384 | clang::DeclContext *containing_decl_ctx = |
3385 | GetClangDeclContextContainingDIE(die, nullptr); |
3386 | bool is_inline = |
3387 | die.GetAttributeValueAsUnsigned(DW_AT_export_symbols, 0) != 0; |
3388 | |
3389 | namespace_decl = m_ast.GetUniqueNamespaceDeclaration( |
3390 | namespace_name, containing_decl_ctx, GetOwningClangModule(die), |
3391 | is_inline); |
3392 | Log *log = |
3393 | nullptr; // (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_INFO)); |
3394 | if (log) { |
3395 | SymbolFileDWARF *dwarf = die.GetDWARF(); |
3396 | if (namespace_name) { |
3397 | dwarf->GetObjectFile()->GetModule()->LogMessage( |
3398 | log, |
3399 | "ASTContext => %p: 0x%8.8" PRIx64"llx" |
3400 | ": DW_TAG_namespace with DW_AT_name(\"%s\") => " |
3401 | "clang::NamespaceDecl *%p (original = %p)", |
3402 | static_cast<void *>(&m_ast.getASTContext()), die.GetID(), |
3403 | namespace_name, static_cast<void *>(namespace_decl), |
3404 | static_cast<void *>(namespace_decl->getOriginalNamespace())); |
3405 | } else { |
3406 | dwarf->GetObjectFile()->GetModule()->LogMessage( |
3407 | log, |
3408 | "ASTContext => %p: 0x%8.8" PRIx64"llx" |
3409 | ": DW_TAG_namespace (anonymous) => clang::NamespaceDecl *%p " |
3410 | "(original = %p)", |
3411 | static_cast<void *>(&m_ast.getASTContext()), die.GetID(), |
3412 | static_cast<void *>(namespace_decl), |
3413 | static_cast<void *>(namespace_decl->getOriginalNamespace())); |
3414 | } |
3415 | } |
3416 | |
3417 | if (namespace_decl) |
3418 | LinkDeclContextToDIE((clang::DeclContext *)namespace_decl, die); |
3419 | return namespace_decl; |
3420 | } |
3421 | } |
3422 | return nullptr; |
3423 | } |
3424 | |
3425 | clang::DeclContext *DWARFASTParserClang::GetClangDeclContextContainingDIE( |
3426 | const DWARFDIE &die, DWARFDIE *decl_ctx_die_copy) { |
3427 | SymbolFileDWARF *dwarf = die.GetDWARF(); |
3428 | |
3429 | DWARFDIE decl_ctx_die = dwarf->GetDeclContextDIEContainingDIE(die); |
3430 | |
3431 | if (decl_ctx_die_copy) |
3432 | *decl_ctx_die_copy = decl_ctx_die; |
3433 | |
3434 | if (decl_ctx_die) { |
3435 | clang::DeclContext *clang_decl_ctx = |
3436 | GetClangDeclContextForDIE(decl_ctx_die); |
3437 | if (clang_decl_ctx) |
3438 | return clang_decl_ctx; |
3439 | } |
3440 | return m_ast.GetTranslationUnitDecl(); |
3441 | } |
3442 | |
3443 | clang::DeclContext * |
3444 | DWARFASTParserClang::GetCachedClangDeclContextForDIE(const DWARFDIE &die) { |
3445 | if (die) { |
3446 | DIEToDeclContextMap::iterator pos = m_die_to_decl_ctx.find(die.GetDIE()); |
3447 | if (pos != m_die_to_decl_ctx.end()) |
3448 | return pos->second; |
3449 | } |
3450 | return nullptr; |
3451 | } |
3452 | |
3453 | void DWARFASTParserClang::LinkDeclContextToDIE(clang::DeclContext *decl_ctx, |
3454 | const DWARFDIE &die) { |
3455 | m_die_to_decl_ctx[die.GetDIE()] = decl_ctx; |
3456 | // There can be many DIEs for a single decl context |
3457 | // m_decl_ctx_to_die[decl_ctx].insert(die.GetDIE()); |
3458 | m_decl_ctx_to_die.insert(std::make_pair(decl_ctx, die)); |
3459 | } |
3460 | |
3461 | bool DWARFASTParserClang::CopyUniqueClassMethodTypes( |
3462 | const DWARFDIE &src_class_die, const DWARFDIE &dst_class_die, |
3463 | lldb_private::Type *class_type, std::vector<DWARFDIE> &failures) { |
3464 | if (!class_type || !src_class_die || !dst_class_die) |
3465 | return false; |
3466 | if (src_class_die.Tag() != dst_class_die.Tag()) |
3467 | return false; |
3468 | |
3469 | // We need to complete the class type so we can get all of the method types |
3470 | // parsed so we can then unique those types to their equivalent counterparts |
3471 | // in "dst_cu" and "dst_class_die" |
3472 | class_type->GetFullCompilerType(); |
3473 | |
3474 | DWARFDIE src_die; |
3475 | DWARFDIE dst_die; |
3476 | UniqueCStringMap<DWARFDIE> src_name_to_die; |
3477 | UniqueCStringMap<DWARFDIE> dst_name_to_die; |
3478 | UniqueCStringMap<DWARFDIE> src_name_to_die_artificial; |
3479 | UniqueCStringMap<DWARFDIE> dst_name_to_die_artificial; |
3480 | for (DWARFDIE src_die : src_class_die.children()) { |
3481 | if (src_die.Tag() == DW_TAG_subprogram) { |
3482 | // Make sure this is a declaration and not a concrete instance by looking |
3483 | // for DW_AT_declaration set to 1. Sometimes concrete function instances |
3484 | // are placed inside the class definitions and shouldn't be included in |
3485 | // the list of things are are tracking here. |
3486 | if (src_die.GetAttributeValueAsUnsigned(DW_AT_declaration, 0) == 1) { |
3487 | const char *src_name = src_die.GetMangledName(); |
3488 | if (src_name) { |
3489 | ConstString src_const_name(src_name); |
3490 | if (src_die.GetAttributeValueAsUnsigned(DW_AT_artificial, 0)) |
3491 | src_name_to_die_artificial.Append(src_const_name, src_die); |
3492 | else |
3493 | src_name_to_die.Append(src_const_name, src_die); |
3494 | } |
3495 | } |
3496 | } |
3497 | } |
3498 | for (DWARFDIE dst_die : dst_class_die.children()) { |
3499 | if (dst_die.Tag() == DW_TAG_subprogram) { |
3500 | // Make sure this is a declaration and not a concrete instance by looking |
3501 | // for DW_AT_declaration set to 1. Sometimes concrete function instances |
3502 | // are placed inside the class definitions and shouldn't be included in |
3503 | // the list of things are are tracking here. |
3504 | if (dst_die.GetAttributeValueAsUnsigned(DW_AT_declaration, 0) == 1) { |
3505 | const char *dst_name = dst_die.GetMangledName(); |
3506 | if (dst_name) { |
3507 | ConstString dst_const_name(dst_name); |
3508 | if (dst_die.GetAttributeValueAsUnsigned(DW_AT_artificial, 0)) |
3509 | dst_name_to_die_artificial.Append(dst_const_name, dst_die); |
3510 | else |
3511 | dst_name_to_die.Append(dst_const_name, dst_die); |
3512 | } |
3513 | } |
3514 | } |
3515 | } |
3516 | const uint32_t src_size = src_name_to_die.GetSize(); |
3517 | const uint32_t dst_size = dst_name_to_die.GetSize(); |
3518 | Log *log = nullptr; // (LogChannelDWARF::GetLogIfAny(DWARF_LOG_DEBUG_INFO | |
3519 | // DWARF_LOG_TYPE_COMPLETION)); |
3520 | |
3521 | // Is everything kosher so we can go through the members at top speed? |
3522 | bool fast_path = true; |
3523 | |
3524 | if (src_size != dst_size) { |
3525 | if (src_size != 0 && dst_size != 0) { |
3526 | LLDB_LOGF(log,do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("warning: trying to unique class DIE 0x%8.8x to 0x%8.8x, " "but they didn't have the same size (src=%d, dst=%d)", src_class_die .GetOffset(), dst_class_die.GetOffset(), src_size, dst_size); } while (0) |
3527 | "warning: trying to unique class DIE 0x%8.8x to 0x%8.8x, "do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("warning: trying to unique class DIE 0x%8.8x to 0x%8.8x, " "but they didn't have the same size (src=%d, dst=%d)", src_class_die .GetOffset(), dst_class_die.GetOffset(), src_size, dst_size); } while (0) |
3528 | "but they didn't have the same size (src=%d, dst=%d)",do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("warning: trying to unique class DIE 0x%8.8x to 0x%8.8x, " "but they didn't have the same size (src=%d, dst=%d)", src_class_die .GetOffset(), dst_class_die.GetOffset(), src_size, dst_size); } while (0) |
3529 | src_class_die.GetOffset(), dst_class_die.GetOffset(), src_size,do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("warning: trying to unique class DIE 0x%8.8x to 0x%8.8x, " "but they didn't have the same size (src=%d, dst=%d)", src_class_die .GetOffset(), dst_class_die.GetOffset(), src_size, dst_size); } while (0) |
3530 | dst_size)do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("warning: trying to unique class DIE 0x%8.8x to 0x%8.8x, " "but they didn't have the same size (src=%d, dst=%d)", src_class_die .GetOffset(), dst_class_die.GetOffset(), src_size, dst_size); } while (0); |
3531 | } |
3532 | |
3533 | fast_path = false; |
3534 | } |
3535 | |
3536 | uint32_t idx; |
3537 | |
3538 | if (fast_path) { |
3539 | for (idx = 0; idx < src_size; ++idx) { |
3540 | src_die = src_name_to_die.GetValueAtIndexUnchecked(idx); |
3541 | dst_die = dst_name_to_die.GetValueAtIndexUnchecked(idx); |
3542 | |
3543 | if (src_die.Tag() != dst_die.Tag()) { |
3544 | LLDB_LOGF(log,do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("warning: tried to unique class DIE 0x%8.8x to 0x%8.8x, " "but 0x%8.8x (%s) tags didn't match 0x%8.8x (%s)", src_class_die .GetOffset(), dst_class_die.GetOffset(), src_die.GetOffset(), src_die.GetTagAsCString(), dst_die.GetOffset(), dst_die.GetTagAsCString ()); } while (0) |
3545 | "warning: tried to unique class DIE 0x%8.8x to 0x%8.8x, "do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("warning: tried to unique class DIE 0x%8.8x to 0x%8.8x, " "but 0x%8.8x (%s) tags didn't match 0x%8.8x (%s)", src_class_die .GetOffset(), dst_class_die.GetOffset(), src_die.GetOffset(), src_die.GetTagAsCString(), dst_die.GetOffset(), dst_die.GetTagAsCString ()); } while (0) |
3546 | "but 0x%8.8x (%s) tags didn't match 0x%8.8x (%s)",do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("warning: tried to unique class DIE 0x%8.8x to 0x%8.8x, " "but 0x%8.8x (%s) tags didn't match 0x%8.8x (%s)", src_class_die .GetOffset(), dst_class_die.GetOffset(), src_die.GetOffset(), src_die.GetTagAsCString(), dst_die.GetOffset(), dst_die.GetTagAsCString ()); } while (0) |
3547 | src_class_die.GetOffset(), dst_class_die.GetOffset(),do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("warning: tried to unique class DIE 0x%8.8x to 0x%8.8x, " "but 0x%8.8x (%s) tags didn't match 0x%8.8x (%s)", src_class_die .GetOffset(), dst_class_die.GetOffset(), src_die.GetOffset(), src_die.GetTagAsCString(), dst_die.GetOffset(), dst_die.GetTagAsCString ()); } while (0) |
3548 | src_die.GetOffset(), src_die.GetTagAsCString(),do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("warning: tried to unique class DIE 0x%8.8x to 0x%8.8x, " "but 0x%8.8x (%s) tags didn't match 0x%8.8x (%s)", src_class_die .GetOffset(), dst_class_die.GetOffset(), src_die.GetOffset(), src_die.GetTagAsCString(), dst_die.GetOffset(), dst_die.GetTagAsCString ()); } while (0) |
3549 | dst_die.GetOffset(), dst_die.GetTagAsCString())do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("warning: tried to unique class DIE 0x%8.8x to 0x%8.8x, " "but 0x%8.8x (%s) tags didn't match 0x%8.8x (%s)", src_class_die .GetOffset(), dst_class_die.GetOffset(), src_die.GetOffset(), src_die.GetTagAsCString(), dst_die.GetOffset(), dst_die.GetTagAsCString ()); } while (0); |
3550 | fast_path = false; |
3551 | } |
3552 | |
3553 | const char *src_name = src_die.GetMangledName(); |
3554 | const char *dst_name = dst_die.GetMangledName(); |
3555 | |
3556 | // Make sure the names match |
3557 | if (src_name == dst_name || (strcmp(src_name, dst_name) == 0)) |
3558 | continue; |
3559 | |
3560 | LLDB_LOGF(log,do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("warning: tried to unique class DIE 0x%8.8x to 0x%8.8x, " "but 0x%8.8x (%s) names didn't match 0x%8.8x (%s)", src_class_die .GetOffset(), dst_class_die.GetOffset(), src_die.GetOffset(), src_name, dst_die.GetOffset(), dst_name); } while (0) |
3561 | "warning: tried to unique class DIE 0x%8.8x to 0x%8.8x, "do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("warning: tried to unique class DIE 0x%8.8x to 0x%8.8x, " "but 0x%8.8x (%s) names didn't match 0x%8.8x (%s)", src_class_die .GetOffset(), dst_class_die.GetOffset(), src_die.GetOffset(), src_name, dst_die.GetOffset(), dst_name); } while (0) |
3562 | "but 0x%8.8x (%s) names didn't match 0x%8.8x (%s)",do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("warning: tried to unique class DIE 0x%8.8x to 0x%8.8x, " "but 0x%8.8x (%s) names didn't match 0x%8.8x (%s)", src_class_die .GetOffset(), dst_class_die.GetOffset(), src_die.GetOffset(), src_name, dst_die.GetOffset(), dst_name); } while (0) |
3563 | src_class_die.GetOffset(), dst_class_die.GetOffset(),do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("warning: tried to unique class DIE 0x%8.8x to 0x%8.8x, " "but 0x%8.8x (%s) names didn't match 0x%8.8x (%s)", src_class_die .GetOffset(), dst_class_die.GetOffset(), src_die.GetOffset(), src_name, dst_die.GetOffset(), dst_name); } while (0) |
3564 | src_die.GetOffset(), src_name, dst_die.GetOffset(), dst_name)do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("warning: tried to unique class DIE 0x%8.8x to 0x%8.8x, " "but 0x%8.8x (%s) names didn't match 0x%8.8x (%s)", src_class_die .GetOffset(), dst_class_die.GetOffset(), src_die.GetOffset(), src_name, dst_die.GetOffset(), dst_name); } while (0); |
3565 | |
3566 | fast_path = false; |
3567 | } |
3568 | } |
3569 | |
3570 | DWARFASTParserClang *src_dwarf_ast_parser = |
3571 | static_cast<DWARFASTParserClang *>( |
3572 | SymbolFileDWARF::GetDWARFParser(*src_die.GetCU())); |
3573 | DWARFASTParserClang *dst_dwarf_ast_parser = |
3574 | static_cast<DWARFASTParserClang *>( |
3575 | SymbolFileDWARF::GetDWARFParser(*dst_die.GetCU())); |
3576 | |
3577 | // Now do the work of linking the DeclContexts and Types. |
3578 | if (fast_path) { |
3579 | // We can do this quickly. Just run across the tables index-for-index |
3580 | // since we know each node has matching names and tags. |
3581 | for (idx = 0; idx < src_size; ++idx) { |
3582 | src_die = src_name_to_die.GetValueAtIndexUnchecked(idx); |
3583 | dst_die = dst_name_to_die.GetValueAtIndexUnchecked(idx); |
3584 | |
3585 | clang::DeclContext *src_decl_ctx = |
3586 | src_dwarf_ast_parser->m_die_to_decl_ctx[src_die.GetDIE()]; |
3587 | if (src_decl_ctx) { |
3588 | LLDB_LOGF(log, "uniquing decl context %p from 0x%8.8x for 0x%8.8x",do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("uniquing decl context %p from 0x%8.8x for 0x%8.8x" , static_cast<void *>(src_decl_ctx), src_die.GetOffset( ), dst_die.GetOffset()); } while (0) |
3589 | static_cast<void *>(src_decl_ctx), src_die.GetOffset(),do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("uniquing decl context %p from 0x%8.8x for 0x%8.8x" , static_cast<void *>(src_decl_ctx), src_die.GetOffset( ), dst_die.GetOffset()); } while (0) |
3590 | dst_die.GetOffset())do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("uniquing decl context %p from 0x%8.8x for 0x%8.8x" , static_cast<void *>(src_decl_ctx), src_die.GetOffset( ), dst_die.GetOffset()); } while (0); |
3591 | dst_dwarf_ast_parser->LinkDeclContextToDIE(src_decl_ctx, dst_die); |
3592 | } else { |
3593 | LLDB_LOGF(log,do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("warning: tried to unique decl context from 0x%8.8x for " "0x%8.8x, but none was found", src_die.GetOffset(), dst_die. GetOffset()); } while (0) |
3594 | "warning: tried to unique decl context from 0x%8.8x for "do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("warning: tried to unique decl context from 0x%8.8x for " "0x%8.8x, but none was found", src_die.GetOffset(), dst_die. GetOffset()); } while (0) |
3595 | "0x%8.8x, but none was found",do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("warning: tried to unique decl context from 0x%8.8x for " "0x%8.8x, but none was found", src_die.GetOffset(), dst_die. GetOffset()); } while (0) |
3596 | src_die.GetOffset(), dst_die.GetOffset())do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("warning: tried to unique decl context from 0x%8.8x for " "0x%8.8x, but none was found", src_die.GetOffset(), dst_die. GetOffset()); } while (0); |
3597 | } |
3598 | |
3599 | Type *src_child_type = |
3600 | dst_die.GetDWARF()->GetDIEToType()[src_die.GetDIE()]; |
3601 | if (src_child_type) { |
3602 | LLDB_LOGF(log,do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("uniquing type %p (uid=0x%" "llx" ") from 0x%8.8x for 0x%8.8x" , static_cast<void *>(src_child_type), src_child_type-> GetID(), src_die.GetOffset(), dst_die.GetOffset()); } while ( 0) |
3603 | "uniquing type %p (uid=0x%" PRIx64do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("uniquing type %p (uid=0x%" "llx" ") from 0x%8.8x for 0x%8.8x" , static_cast<void *>(src_child_type), src_child_type-> GetID(), src_die.GetOffset(), dst_die.GetOffset()); } while ( 0) |
3604 | ") from 0x%8.8x for 0x%8.8x",do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("uniquing type %p (uid=0x%" "llx" ") from 0x%8.8x for 0x%8.8x" , static_cast<void *>(src_child_type), src_child_type-> GetID(), src_die.GetOffset(), dst_die.GetOffset()); } while ( 0) |
3605 | static_cast<void *>(src_child_type), src_child_type->GetID(),do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("uniquing type %p (uid=0x%" "llx" ") from 0x%8.8x for 0x%8.8x" , static_cast<void *>(src_child_type), src_child_type-> GetID(), src_die.GetOffset(), dst_die.GetOffset()); } while ( 0) |
3606 | src_die.GetOffset(), dst_die.GetOffset())do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("uniquing type %p (uid=0x%" "llx" ") from 0x%8.8x for 0x%8.8x" , static_cast<void *>(src_child_type), src_child_type-> GetID(), src_die.GetOffset(), dst_die.GetOffset()); } while ( 0); |
3607 | dst_die.GetDWARF()->GetDIEToType()[dst_die.GetDIE()] = src_child_type; |
3608 | } else { |
3609 | LLDB_LOGF(log,do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("warning: tried to unique lldb_private::Type from " "0x%8.8x for 0x%8.8x, but none was found", src_die.GetOffset (), dst_die.GetOffset()); } while (0) |
3610 | "warning: tried to unique lldb_private::Type from "do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("warning: tried to unique lldb_private::Type from " "0x%8.8x for 0x%8.8x, but none was found", src_die.GetOffset (), dst_die.GetOffset()); } while (0) |
3611 | "0x%8.8x for 0x%8.8x, but none was found",do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("warning: tried to unique lldb_private::Type from " "0x%8.8x for 0x%8.8x, but none was found", src_die.GetOffset (), dst_die.GetOffset()); } while (0) |
3612 | src_die.GetOffset(), dst_die.GetOffset())do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("warning: tried to unique lldb_private::Type from " "0x%8.8x for 0x%8.8x, but none was found", src_die.GetOffset (), dst_die.GetOffset()); } while (0); |
3613 | } |
3614 | } |
3615 | } else { |
3616 | // We must do this slowly. For each member of the destination, look up a |
3617 | // member in the source with the same name, check its tag, and unique them |
3618 | // if everything matches up. Report failures. |
3619 | |
3620 | if (!src_name_to_die.IsEmpty() && !dst_name_to_die.IsEmpty()) { |
3621 | src_name_to_die.Sort(); |
3622 | |
3623 | for (idx = 0; idx < dst_size; ++idx) { |
3624 | ConstString dst_name = dst_name_to_die.GetCStringAtIndex(idx); |
3625 | dst_die = dst_name_to_die.GetValueAtIndexUnchecked(idx); |
3626 | src_die = src_name_to_die.Find(dst_name, DWARFDIE()); |
3627 | |
3628 | if (src_die && (src_die.Tag() == dst_die.Tag())) { |
3629 | clang::DeclContext *src_decl_ctx = |
3630 | src_dwarf_ast_parser->m_die_to_decl_ctx[src_die.GetDIE()]; |
3631 | if (src_decl_ctx) { |
3632 | LLDB_LOGF(log, "uniquing decl context %p from 0x%8.8x for 0x%8.8x",do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("uniquing decl context %p from 0x%8.8x for 0x%8.8x" , static_cast<void *>(src_decl_ctx), src_die.GetOffset( ), dst_die.GetOffset()); } while (0) |
3633 | static_cast<void *>(src_decl_ctx), src_die.GetOffset(),do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("uniquing decl context %p from 0x%8.8x for 0x%8.8x" , static_cast<void *>(src_decl_ctx), src_die.GetOffset( ), dst_die.GetOffset()); } while (0) |
3634 | dst_die.GetOffset())do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("uniquing decl context %p from 0x%8.8x for 0x%8.8x" , static_cast<void *>(src_decl_ctx), src_die.GetOffset( ), dst_die.GetOffset()); } while (0); |
3635 | dst_dwarf_ast_parser->LinkDeclContextToDIE(src_decl_ctx, dst_die); |
3636 | } else { |
3637 | LLDB_LOGF(log,do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("warning: tried to unique decl context from 0x%8.8x " "for 0x%8.8x, but none was found", src_die.GetOffset(), dst_die .GetOffset()); } while (0) |
3638 | "warning: tried to unique decl context from 0x%8.8x "do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("warning: tried to unique decl context from 0x%8.8x " "for 0x%8.8x, but none was found", src_die.GetOffset(), dst_die .GetOffset()); } while (0) |
3639 | "for 0x%8.8x, but none was found",do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("warning: tried to unique decl context from 0x%8.8x " "for 0x%8.8x, but none was found", src_die.GetOffset(), dst_die .GetOffset()); } while (0) |
3640 | src_die.GetOffset(), dst_die.GetOffset())do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("warning: tried to unique decl context from 0x%8.8x " "for 0x%8.8x, but none was found", src_die.GetOffset(), dst_die .GetOffset()); } while (0); |
3641 | } |
3642 | |
3643 | Type *src_child_type = |
3644 | dst_die.GetDWARF()->GetDIEToType()[src_die.GetDIE()]; |
3645 | if (src_child_type) { |
3646 | LLDB_LOGF(do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("uniquing type %p (uid=0x%" "llx" ") from 0x%8.8x for 0x%8.8x" , static_cast<void *>(src_child_type), src_child_type-> GetID(), src_die.GetOffset(), dst_die.GetOffset()); } while ( 0) |
3647 | log,do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("uniquing type %p (uid=0x%" "llx" ") from 0x%8.8x for 0x%8.8x" , static_cast<void *>(src_child_type), src_child_type-> GetID(), src_die.GetOffset(), dst_die.GetOffset()); } while ( 0) |
3648 | "uniquing type %p (uid=0x%" PRIx64 ") from 0x%8.8x for 0x%8.8x",do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("uniquing type %p (uid=0x%" "llx" ") from 0x%8.8x for 0x%8.8x" , static_cast<void *>(src_child_type), src_child_type-> GetID(), src_die.GetOffset(), dst_die.GetOffset()); } while ( 0) |
3649 | static_cast<void *>(src_child_type), src_child_type->GetID(),do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("uniquing type %p (uid=0x%" "llx" ") from 0x%8.8x for 0x%8.8x" , static_cast<void *>(src_child_type), src_child_type-> GetID(), src_die.GetOffset(), dst_die.GetOffset()); } while ( 0) |
3650 | src_die.GetOffset(), dst_die.GetOffset())do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("uniquing type %p (uid=0x%" "llx" ") from 0x%8.8x for 0x%8.8x" , static_cast<void *>(src_child_type), src_child_type-> GetID(), src_die.GetOffset(), dst_die.GetOffset()); } while ( 0); |
3651 | dst_die.GetDWARF()->GetDIEToType()[dst_die.GetDIE()] = |
3652 | src_child_type; |
3653 | } else { |
3654 | LLDB_LOGF(log,do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("warning: tried to unique lldb_private::Type from " "0x%8.8x for 0x%8.8x, but none was found", src_die.GetOffset (), dst_die.GetOffset()); } while (0) |
3655 | "warning: tried to unique lldb_private::Type from "do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("warning: tried to unique lldb_private::Type from " "0x%8.8x for 0x%8.8x, but none was found", src_die.GetOffset (), dst_die.GetOffset()); } while (0) |
3656 | "0x%8.8x for 0x%8.8x, but none was found",do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("warning: tried to unique lldb_private::Type from " "0x%8.8x for 0x%8.8x, but none was found", src_die.GetOffset (), dst_die.GetOffset()); } while (0) |
3657 | src_die.GetOffset(), dst_die.GetOffset())do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("warning: tried to unique lldb_private::Type from " "0x%8.8x for 0x%8.8x, but none was found", src_die.GetOffset (), dst_die.GetOffset()); } while (0); |
3658 | } |
3659 | } else { |
3660 | LLDB_LOGF(log, "warning: couldn't find a match for 0x%8.8x",do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("warning: couldn't find a match for 0x%8.8x" , dst_die.GetOffset()); } while (0) |
3661 | dst_die.GetOffset())do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("warning: couldn't find a match for 0x%8.8x" , dst_die.GetOffset()); } while (0); |
3662 | |
3663 | failures.push_back(dst_die); |
3664 | } |
3665 | } |
3666 | } |
3667 | } |
3668 | |
3669 | const uint32_t src_size_artificial = src_name_to_die_artificial.GetSize(); |
3670 | const uint32_t dst_size_artificial = dst_name_to_die_artificial.GetSize(); |
3671 | |
3672 | if (src_size_artificial && dst_size_artificial) { |
3673 | dst_name_to_die_artificial.Sort(); |
3674 | |
3675 | for (idx = 0; idx < src_size_artificial; ++idx) { |
3676 | ConstString src_name_artificial = |
3677 | src_name_to_die_artificial.GetCStringAtIndex(idx); |
3678 | src_die = src_name_to_die_artificial.GetValueAtIndexUnchecked(idx); |
3679 | dst_die = |
3680 | dst_name_to_die_artificial.Find(src_name_artificial, DWARFDIE()); |
3681 | |
3682 | if (dst_die) { |
3683 | // Both classes have the artificial types, link them |
3684 | clang::DeclContext *src_decl_ctx = |
3685 | src_dwarf_ast_parser->m_die_to_decl_ctx[src_die.GetDIE()]; |
3686 | if (src_decl_ctx) { |
3687 | LLDB_LOGF(log, "uniquing decl context %p from 0x%8.8x for 0x%8.8x",do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("uniquing decl context %p from 0x%8.8x for 0x%8.8x" , static_cast<void *>(src_decl_ctx), src_die.GetOffset( ), dst_die.GetOffset()); } while (0) |
3688 | static_cast<void *>(src_decl_ctx), src_die.GetOffset(),do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("uniquing decl context %p from 0x%8.8x for 0x%8.8x" , static_cast<void *>(src_decl_ctx), src_die.GetOffset( ), dst_die.GetOffset()); } while (0) |
3689 | dst_die.GetOffset())do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("uniquing decl context %p from 0x%8.8x for 0x%8.8x" , static_cast<void *>(src_decl_ctx), src_die.GetOffset( ), dst_die.GetOffset()); } while (0); |
3690 | dst_dwarf_ast_parser->LinkDeclContextToDIE(src_decl_ctx, dst_die); |
3691 | } else { |
3692 | LLDB_LOGF(log,do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("warning: tried to unique decl context from 0x%8.8x " "for 0x%8.8x, but none was found", src_die.GetOffset(), dst_die .GetOffset()); } while (0) |
3693 | "warning: tried to unique decl context from 0x%8.8x "do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("warning: tried to unique decl context from 0x%8.8x " "for 0x%8.8x, but none was found", src_die.GetOffset(), dst_die .GetOffset()); } while (0) |
3694 | "for 0x%8.8x, but none was found",do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("warning: tried to unique decl context from 0x%8.8x " "for 0x%8.8x, but none was found", src_die.GetOffset(), dst_die .GetOffset()); } while (0) |
3695 | src_die.GetOffset(), dst_die.GetOffset())do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("warning: tried to unique decl context from 0x%8.8x " "for 0x%8.8x, but none was found", src_die.GetOffset(), dst_die .GetOffset()); } while (0); |
3696 | } |
3697 | |
3698 | Type *src_child_type = |
3699 | dst_die.GetDWARF()->GetDIEToType()[src_die.GetDIE()]; |
3700 | if (src_child_type) { |
3701 | LLDB_LOGF(do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("uniquing type %p (uid=0x%" "llx" ") from 0x%8.8x for 0x%8.8x" , static_cast<void *>(src_child_type), src_child_type-> GetID(), src_die.GetOffset(), dst_die.GetOffset()); } while ( 0) |
3702 | log,do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("uniquing type %p (uid=0x%" "llx" ") from 0x%8.8x for 0x%8.8x" , static_cast<void *>(src_child_type), src_child_type-> GetID(), src_die.GetOffset(), dst_die.GetOffset()); } while ( 0) |
3703 | "uniquing type %p (uid=0x%" PRIx64 ") from 0x%8.8x for 0x%8.8x",do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("uniquing type %p (uid=0x%" "llx" ") from 0x%8.8x for 0x%8.8x" , static_cast<void *>(src_child_type), src_child_type-> GetID(), src_die.GetOffset(), dst_die.GetOffset()); } while ( 0) |
3704 | static_cast<void *>(src_child_type), src_child_type->GetID(),do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("uniquing type %p (uid=0x%" "llx" ") from 0x%8.8x for 0x%8.8x" , static_cast<void *>(src_child_type), src_child_type-> GetID(), src_die.GetOffset(), dst_die.GetOffset()); } while ( 0) |
3705 | src_die.GetOffset(), dst_die.GetOffset())do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("uniquing type %p (uid=0x%" "llx" ") from 0x%8.8x for 0x%8.8x" , static_cast<void *>(src_child_type), src_child_type-> GetID(), src_die.GetOffset(), dst_die.GetOffset()); } while ( 0); |
3706 | dst_die.GetDWARF()->GetDIEToType()[dst_die.GetDIE()] = src_child_type; |
3707 | } else { |
3708 | LLDB_LOGF(log,do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("warning: tried to unique lldb_private::Type from " "0x%8.8x for 0x%8.8x, but none was found", src_die.GetOffset (), dst_die.GetOffset()); } while (0) |
3709 | "warning: tried to unique lldb_private::Type from "do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("warning: tried to unique lldb_private::Type from " "0x%8.8x for 0x%8.8x, but none was found", src_die.GetOffset (), dst_die.GetOffset()); } while (0) |
3710 | "0x%8.8x for 0x%8.8x, but none was found",do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("warning: tried to unique lldb_private::Type from " "0x%8.8x for 0x%8.8x, but none was found", src_die.GetOffset (), dst_die.GetOffset()); } while (0) |
3711 | src_die.GetOffset(), dst_die.GetOffset())do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("warning: tried to unique lldb_private::Type from " "0x%8.8x for 0x%8.8x, but none was found", src_die.GetOffset (), dst_die.GetOffset()); } while (0); |
3712 | } |
3713 | } |
3714 | } |
3715 | } |
3716 | |
3717 | if (dst_size_artificial) { |
3718 | for (idx = 0; idx < dst_size_artificial; ++idx) { |
3719 | ConstString dst_name_artificial = |
3720 | dst_name_to_die_artificial.GetCStringAtIndex(idx); |
3721 | dst_die = dst_name_to_die_artificial.GetValueAtIndexUnchecked(idx); |
3722 | LLDB_LOGF(log,do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("warning: need to create artificial method for 0x%8.8x for " "method '%s'", dst_die.GetOffset(), dst_name_artificial.GetCString ()); } while (0) |
3723 | "warning: need to create artificial method for 0x%8.8x for "do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("warning: need to create artificial method for 0x%8.8x for " "method '%s'", dst_die.GetOffset(), dst_name_artificial.GetCString ()); } while (0) |
3724 | "method '%s'",do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("warning: need to create artificial method for 0x%8.8x for " "method '%s'", dst_die.GetOffset(), dst_name_artificial.GetCString ()); } while (0) |
3725 | dst_die.GetOffset(), dst_name_artificial.GetCString())do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("warning: need to create artificial method for 0x%8.8x for " "method '%s'", dst_die.GetOffset(), dst_name_artificial.GetCString ()); } while (0); |
3726 | |
3727 | failures.push_back(dst_die); |
3728 | } |
3729 | } |
3730 | |
3731 | return !failures.empty(); |
3732 | } |