| 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 |
Press '?' to see keyboard shortcuts
Keyboard shortcuts:
| 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 | } |