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-rw-r--r--contrib/llvm/tools/lldb/source/Plugins/SymbolFile/PDB/SymbolFilePDB.cpp1167
1 files changed, 568 insertions, 599 deletions
diff --git a/contrib/llvm/tools/lldb/source/Plugins/SymbolFile/PDB/SymbolFilePDB.cpp b/contrib/llvm/tools/lldb/source/Plugins/SymbolFile/PDB/SymbolFilePDB.cpp
index d8092c0..cd99493 100644
--- a/contrib/llvm/tools/lldb/source/Plugins/SymbolFile/PDB/SymbolFilePDB.cpp
+++ b/contrib/llvm/tools/lldb/source/Plugins/SymbolFile/PDB/SymbolFilePDB.cpp
@@ -42,692 +42,661 @@
using namespace lldb_private;
using namespace llvm::pdb;
-namespace
-{
-lldb::LanguageType
-TranslateLanguage(PDB_Lang lang)
-{
- switch (lang)
- {
- case PDB_Lang::Cpp:
- return lldb::LanguageType::eLanguageTypeC_plus_plus;
- case PDB_Lang::C:
- return lldb::LanguageType::eLanguageTypeC;
- default:
- return lldb::LanguageType::eLanguageTypeUnknown;
- }
- }
-
- bool
- ShouldAddLine(uint32_t requested_line, uint32_t actual_line, uint32_t addr_length)
- {
- return ((requested_line == 0 || actual_line == requested_line) && addr_length > 0);
- }
+namespace {
+lldb::LanguageType TranslateLanguage(PDB_Lang lang) {
+ switch (lang) {
+ case PDB_Lang::Cpp:
+ return lldb::LanguageType::eLanguageTypeC_plus_plus;
+ case PDB_Lang::C:
+ return lldb::LanguageType::eLanguageTypeC;
+ default:
+ return lldb::LanguageType::eLanguageTypeUnknown;
+ }
}
-void
-SymbolFilePDB::Initialize()
-{
- PluginManager::RegisterPlugin(GetPluginNameStatic(), GetPluginDescriptionStatic(), CreateInstance,
- DebuggerInitialize);
+bool ShouldAddLine(uint32_t requested_line, uint32_t actual_line,
+ uint32_t addr_length) {
+ return ((requested_line == 0 || actual_line == requested_line) &&
+ addr_length > 0);
}
-
-void
-SymbolFilePDB::Terminate()
-{
- PluginManager::UnregisterPlugin(CreateInstance);
}
-void
-SymbolFilePDB::DebuggerInitialize(lldb_private::Debugger &debugger)
-{
+void SymbolFilePDB::Initialize() {
+ PluginManager::RegisterPlugin(GetPluginNameStatic(),
+ GetPluginDescriptionStatic(), CreateInstance,
+ DebuggerInitialize);
}
-lldb_private::ConstString
-SymbolFilePDB::GetPluginNameStatic()
-{
- static ConstString g_name("pdb");
- return g_name;
+void SymbolFilePDB::Terminate() {
+ PluginManager::UnregisterPlugin(CreateInstance);
}
-const char *
-SymbolFilePDB::GetPluginDescriptionStatic()
-{
- return "Microsoft PDB debug symbol file reader.";
-}
+void SymbolFilePDB::DebuggerInitialize(lldb_private::Debugger &debugger) {}
-lldb_private::SymbolFile *
-SymbolFilePDB::CreateInstance(lldb_private::ObjectFile *obj_file)
-{
- return new SymbolFilePDB(obj_file);
+lldb_private::ConstString SymbolFilePDB::GetPluginNameStatic() {
+ static ConstString g_name("pdb");
+ return g_name;
}
-SymbolFilePDB::SymbolFilePDB(lldb_private::ObjectFile *object_file)
- : SymbolFile(object_file), m_cached_compile_unit_count(0)
-{
+const char *SymbolFilePDB::GetPluginDescriptionStatic() {
+ return "Microsoft PDB debug symbol file reader.";
}
-SymbolFilePDB::~SymbolFilePDB()
-{
+lldb_private::SymbolFile *
+SymbolFilePDB::CreateInstance(lldb_private::ObjectFile *obj_file) {
+ return new SymbolFilePDB(obj_file);
}
-uint32_t
-SymbolFilePDB::CalculateAbilities()
-{
- if (!m_session_up)
- {
- // Lazily load and match the PDB file, but only do this once.
- std::string exePath = m_obj_file->GetFileSpec().GetPath();
- auto error = loadDataForEXE(PDB_ReaderType::DIA, llvm::StringRef(exePath), m_session_up);
- if (error)
- {
- llvm::consumeError(std::move(error));
- return 0;
- }
+SymbolFilePDB::SymbolFilePDB(lldb_private::ObjectFile *object_file)
+ : SymbolFile(object_file), m_cached_compile_unit_count(0) {}
+
+SymbolFilePDB::~SymbolFilePDB() {}
+
+uint32_t SymbolFilePDB::CalculateAbilities() {
+ if (!m_session_up) {
+ // Lazily load and match the PDB file, but only do this once.
+ std::string exePath = m_obj_file->GetFileSpec().GetPath();
+ auto error = loadDataForEXE(PDB_ReaderType::DIA, llvm::StringRef(exePath),
+ m_session_up);
+ if (error) {
+ llvm::consumeError(std::move(error));
+ return 0;
}
- return CompileUnits | LineTables;
+ }
+ return CompileUnits | LineTables;
}
-void
-SymbolFilePDB::InitializeObject()
-{
- lldb::addr_t obj_load_address = m_obj_file->GetFileOffset();
- m_session_up->setLoadAddress(obj_load_address);
+void SymbolFilePDB::InitializeObject() {
+ lldb::addr_t obj_load_address = m_obj_file->GetFileOffset();
+ m_session_up->setLoadAddress(obj_load_address);
- TypeSystem *type_system = GetTypeSystemForLanguage(lldb::eLanguageTypeC_plus_plus);
- ClangASTContext *clang_type_system = llvm::dyn_cast_or_null<ClangASTContext>(type_system);
- m_tu_decl_ctx_up = llvm::make_unique<CompilerDeclContext>(type_system, clang_type_system->GetTranslationUnitDecl());
+ TypeSystem *type_system =
+ GetTypeSystemForLanguage(lldb::eLanguageTypeC_plus_plus);
+ ClangASTContext *clang_type_system =
+ llvm::dyn_cast_or_null<ClangASTContext>(type_system);
+ m_tu_decl_ctx_up = llvm::make_unique<CompilerDeclContext>(
+ type_system, clang_type_system->GetTranslationUnitDecl());
}
-uint32_t
-SymbolFilePDB::GetNumCompileUnits()
-{
- if (m_cached_compile_unit_count == 0)
- {
- auto global = m_session_up->getGlobalScope();
- auto compilands = global->findAllChildren<PDBSymbolCompiland>();
- m_cached_compile_unit_count = compilands->getChildCount();
-
- // The linker can inject an additional "dummy" compilation unit into the PDB.
- // Ignore this special compile unit for our purposes, if it is there. It is
- // always the last one.
- auto last_cu = compilands->getChildAtIndex(m_cached_compile_unit_count - 1);
- std::string name = last_cu->getName();
- if (name == "* Linker *")
- --m_cached_compile_unit_count;
- }
- return m_cached_compile_unit_count;
-}
-
-lldb::CompUnitSP
-SymbolFilePDB::ParseCompileUnitAtIndex(uint32_t index)
-{
+uint32_t SymbolFilePDB::GetNumCompileUnits() {
+ if (m_cached_compile_unit_count == 0) {
auto global = m_session_up->getGlobalScope();
auto compilands = global->findAllChildren<PDBSymbolCompiland>();
- auto cu = compilands->getChildAtIndex(index);
+ m_cached_compile_unit_count = compilands->getChildCount();
+
+ // The linker can inject an additional "dummy" compilation unit into the
+ // PDB.
+ // Ignore this special compile unit for our purposes, if it is there. It is
+ // always the last one.
+ auto last_cu = compilands->getChildAtIndex(m_cached_compile_unit_count - 1);
+ std::string name = last_cu->getName();
+ if (name == "* Linker *")
+ --m_cached_compile_unit_count;
+ }
+ return m_cached_compile_unit_count;
+}
- uint32_t id = cu->getSymIndexId();
+lldb::CompUnitSP SymbolFilePDB::ParseCompileUnitAtIndex(uint32_t index) {
+ auto global = m_session_up->getGlobalScope();
+ auto compilands = global->findAllChildren<PDBSymbolCompiland>();
+ auto cu = compilands->getChildAtIndex(index);
- return ParseCompileUnitForSymIndex(id);
+ uint32_t id = cu->getSymIndexId();
+
+ return ParseCompileUnitForSymIndex(id);
}
lldb::LanguageType
-SymbolFilePDB::ParseCompileUnitLanguage(const lldb_private::SymbolContext &sc)
-{
- // What fields should I expect to be filled out on the SymbolContext? Is it
- // safe to assume that `sc.comp_unit` is valid?
- if (!sc.comp_unit)
- return lldb::eLanguageTypeUnknown;
-
- auto cu = m_session_up->getConcreteSymbolById<PDBSymbolCompiland>(sc.comp_unit->GetID());
- if (!cu)
- return lldb::eLanguageTypeUnknown;
- auto details = cu->findOneChild<PDBSymbolCompilandDetails>();
- if (!details)
- return lldb::eLanguageTypeUnknown;
- return TranslateLanguage(details->getLanguage());
-}
+SymbolFilePDB::ParseCompileUnitLanguage(const lldb_private::SymbolContext &sc) {
+ // What fields should I expect to be filled out on the SymbolContext? Is it
+ // safe to assume that `sc.comp_unit` is valid?
+ if (!sc.comp_unit)
+ return lldb::eLanguageTypeUnknown;
-size_t
-SymbolFilePDB::ParseCompileUnitFunctions(const lldb_private::SymbolContext &sc)
-{
- // TODO: Implement this
- return size_t();
+ auto cu = m_session_up->getConcreteSymbolById<PDBSymbolCompiland>(
+ sc.comp_unit->GetID());
+ if (!cu)
+ return lldb::eLanguageTypeUnknown;
+ auto details = cu->findOneChild<PDBSymbolCompilandDetails>();
+ if (!details)
+ return lldb::eLanguageTypeUnknown;
+ return TranslateLanguage(details->getLanguage());
}
-bool
-SymbolFilePDB::ParseCompileUnitLineTable(const lldb_private::SymbolContext &sc)
-{
- return ParseCompileUnitLineTable(sc, 0);
+size_t SymbolFilePDB::ParseCompileUnitFunctions(
+ const lldb_private::SymbolContext &sc) {
+ // TODO: Implement this
+ return size_t();
}
-bool
-SymbolFilePDB::ParseCompileUnitDebugMacros(const lldb_private::SymbolContext &sc)
-{
- // PDB doesn't contain information about macros
- return false;
+bool SymbolFilePDB::ParseCompileUnitLineTable(
+ const lldb_private::SymbolContext &sc) {
+ return ParseCompileUnitLineTable(sc, 0);
}
-bool
-SymbolFilePDB::ParseCompileUnitSupportFiles(const lldb_private::SymbolContext &sc,
- lldb_private::FileSpecList &support_files)
-{
- if (!sc.comp_unit)
- return false;
-
- // In theory this is unnecessary work for us, because all of this information is easily
- // (and quickly) accessible from DebugInfoPDB, so caching it a second time seems like a waste.
- // Unfortunately, there's no good way around this short of a moderate refactor, since SymbolVendor
- // depends on being able to cache this list.
- auto cu = m_session_up->getConcreteSymbolById<PDBSymbolCompiland>(sc.comp_unit->GetID());
- if (!cu)
- return false;
- auto files = m_session_up->getSourceFilesForCompiland(*cu);
- if (!files || files->getChildCount() == 0)
- return false;
-
- while (auto file = files->getNext())
- {
- FileSpec spec(file->getFileName(), false);
- support_files.Append(spec);
- }
- return true;
+bool SymbolFilePDB::ParseCompileUnitDebugMacros(
+ const lldb_private::SymbolContext &sc) {
+ // PDB doesn't contain information about macros
+ return false;
}
-bool
-SymbolFilePDB::ParseImportedModules(const lldb_private::SymbolContext &sc,
- std::vector<lldb_private::ConstString> &imported_modules)
-{
- // PDB does not yet support module debug info
+bool SymbolFilePDB::ParseCompileUnitSupportFiles(
+ const lldb_private::SymbolContext &sc,
+ lldb_private::FileSpecList &support_files) {
+ if (!sc.comp_unit)
return false;
-}
-size_t
-SymbolFilePDB::ParseFunctionBlocks(const lldb_private::SymbolContext &sc)
-{
- // TODO: Implement this
- return size_t();
+ // In theory this is unnecessary work for us, because all of this information
+ // is easily
+ // (and quickly) accessible from DebugInfoPDB, so caching it a second time
+ // seems like a waste.
+ // Unfortunately, there's no good way around this short of a moderate
+ // refactor, since SymbolVendor
+ // depends on being able to cache this list.
+ auto cu = m_session_up->getConcreteSymbolById<PDBSymbolCompiland>(
+ sc.comp_unit->GetID());
+ if (!cu)
+ return false;
+ auto files = m_session_up->getSourceFilesForCompiland(*cu);
+ if (!files || files->getChildCount() == 0)
+ return false;
+
+ while (auto file = files->getNext()) {
+ FileSpec spec(file->getFileName(), false);
+ support_files.Append(spec);
+ }
+ return true;
}
-size_t
-SymbolFilePDB::ParseTypes(const lldb_private::SymbolContext &sc)
-{
- // TODO: Implement this
- return size_t();
+bool SymbolFilePDB::ParseImportedModules(
+ const lldb_private::SymbolContext &sc,
+ std::vector<lldb_private::ConstString> &imported_modules) {
+ // PDB does not yet support module debug info
+ return false;
}
size_t
-SymbolFilePDB::ParseVariablesForContext(const lldb_private::SymbolContext &sc)
-{
- // TODO: Implement this
- return size_t();
-}
-
-lldb_private::Type *
-SymbolFilePDB::ResolveTypeUID(lldb::user_id_t type_uid)
-{
- auto find_result = m_types.find(type_uid);
- if (find_result != m_types.end())
- return find_result->second.get();
-
- TypeSystem *type_system = GetTypeSystemForLanguage(lldb::eLanguageTypeC_plus_plus);
- ClangASTContext *clang_type_system = llvm::dyn_cast_or_null<ClangASTContext>(type_system);
- if (!clang_type_system)
- return nullptr;
- PDBASTParser *pdb = llvm::dyn_cast<PDBASTParser>(clang_type_system->GetPDBParser());
- if (!pdb)
- return nullptr;
-
- auto pdb_type = m_session_up->getSymbolById(type_uid);
- if (pdb_type == nullptr)
- return nullptr;
-
- lldb::TypeSP result = pdb->CreateLLDBTypeFromPDBType(*pdb_type);
- m_types.insert(std::make_pair(type_uid, result));
- return result.get();
-}
-
-bool
-SymbolFilePDB::CompleteType(lldb_private::CompilerType &compiler_type)
-{
- // TODO: Implement this
- return false;
+SymbolFilePDB::ParseFunctionBlocks(const lldb_private::SymbolContext &sc) {
+ // TODO: Implement this
+ return size_t();
}
-lldb_private::CompilerDecl
-SymbolFilePDB::GetDeclForUID(lldb::user_id_t uid)
-{
- return lldb_private::CompilerDecl();
+size_t SymbolFilePDB::ParseTypes(const lldb_private::SymbolContext &sc) {
+ // TODO: Implement this
+ return size_t();
}
-lldb_private::CompilerDeclContext
-SymbolFilePDB::GetDeclContextForUID(lldb::user_id_t uid)
-{
- // PDB always uses the translation unit decl context for everything. We can improve this later
- // but it's not easy because PDB doesn't provide a high enough level of type fidelity in this area.
- return *m_tu_decl_ctx_up;
+size_t
+SymbolFilePDB::ParseVariablesForContext(const lldb_private::SymbolContext &sc) {
+ // TODO: Implement this
+ return size_t();
}
-lldb_private::CompilerDeclContext
-SymbolFilePDB::GetDeclContextContainingUID(lldb::user_id_t uid)
-{
- return *m_tu_decl_ctx_up;
-}
+lldb_private::Type *SymbolFilePDB::ResolveTypeUID(lldb::user_id_t type_uid) {
+ auto find_result = m_types.find(type_uid);
+ if (find_result != m_types.end())
+ return find_result->second.get();
-void
-SymbolFilePDB::ParseDeclsForContext(lldb_private::CompilerDeclContext decl_ctx)
-{
-}
+ TypeSystem *type_system =
+ GetTypeSystemForLanguage(lldb::eLanguageTypeC_plus_plus);
+ ClangASTContext *clang_type_system =
+ llvm::dyn_cast_or_null<ClangASTContext>(type_system);
+ if (!clang_type_system)
+ return nullptr;
+ PDBASTParser *pdb =
+ llvm::dyn_cast<PDBASTParser>(clang_type_system->GetPDBParser());
+ if (!pdb)
+ return nullptr;
-uint32_t
-SymbolFilePDB::ResolveSymbolContext(const lldb_private::Address &so_addr, uint32_t resolve_scope,
- lldb_private::SymbolContext &sc)
-{
- return uint32_t();
-}
+ auto pdb_type = m_session_up->getSymbolById(type_uid);
+ if (pdb_type == nullptr)
+ return nullptr;
-uint32_t
-SymbolFilePDB::ResolveSymbolContext(const lldb_private::FileSpec &file_spec, uint32_t line, bool check_inlines,
- uint32_t resolve_scope, lldb_private::SymbolContextList &sc_list)
-{
- if (resolve_scope & lldb::eSymbolContextCompUnit)
- {
- // Locate all compilation units with line numbers referencing the specified file. For example, if
- // `file_spec` is <vector>, then this should return all source files and header files that reference
- // <vector>, either directly or indirectly.
- auto compilands =
- m_session_up->findCompilandsForSourceFile(file_spec.GetPath(), PDB_NameSearchFlags::NS_CaseInsensitive);
-
- // For each one, either find get its previously parsed data, or parse it afresh and add it to
- // the symbol context list.
- while (auto compiland = compilands->getNext())
- {
- // If we're not checking inlines, then don't add line information for this file unless the FileSpec
- // matches.
- if (!check_inlines)
- {
- // `getSourceFileName` returns the basename of the original source file used to generate this compiland.
- // It does not return the full path. Currently the only way to get that is to do a basename lookup to
- // get the IPDBSourceFile, but this is ambiguous in the case of two source files with the same name
- // contributing to the same compiland. This is a moderately extreme edge case, so we consider this ok
- // for now, although we need to find a long term solution.
- std::string source_file = compiland->getSourceFileName();
- auto pdb_file = m_session_up->findOneSourceFile(compiland.get(), source_file,
- PDB_NameSearchFlags::NS_CaseInsensitive);
- source_file = pdb_file->getFileName();
- FileSpec this_spec(source_file, false, FileSpec::ePathSyntaxWindows);
- if (!file_spec.FileEquals(this_spec))
- continue;
- }
-
- SymbolContext sc;
- auto cu = ParseCompileUnitForSymIndex(compiland->getSymIndexId());
- sc.comp_unit = cu.get();
- sc.module_sp = cu->GetModule();
- sc_list.Append(sc);
-
- // If we were asked to resolve line entries, add all entries to the line table that match the requested
- // line (or all lines if `line` == 0)
- if (resolve_scope & lldb::eSymbolContextLineEntry)
- ParseCompileUnitLineTable(sc, line);
- }
- }
- return sc_list.GetSize();
+ lldb::TypeSP result = pdb->CreateLLDBTypeFromPDBType(*pdb_type);
+ m_types.insert(std::make_pair(type_uid, result));
+ return result.get();
}
-uint32_t
-SymbolFilePDB::FindGlobalVariables(const lldb_private::ConstString &name,
- const lldb_private::CompilerDeclContext *parent_decl_ctx, bool append,
- uint32_t max_matches, lldb_private::VariableList &variables)
-{
- return uint32_t();
+bool SymbolFilePDB::CompleteType(lldb_private::CompilerType &compiler_type) {
+ // TODO: Implement this
+ return false;
}
-uint32_t
-SymbolFilePDB::FindGlobalVariables(const lldb_private::RegularExpression &regex, bool append, uint32_t max_matches,
- lldb_private::VariableList &variables)
-{
- return uint32_t();
+lldb_private::CompilerDecl SymbolFilePDB::GetDeclForUID(lldb::user_id_t uid) {
+ return lldb_private::CompilerDecl();
}
-uint32_t
-SymbolFilePDB::FindFunctions(const lldb_private::ConstString &name,
- const lldb_private::CompilerDeclContext *parent_decl_ctx, uint32_t name_type_mask,
- bool include_inlines, bool append, lldb_private::SymbolContextList &sc_list)
-{
- return uint32_t();
+lldb_private::CompilerDeclContext
+SymbolFilePDB::GetDeclContextForUID(lldb::user_id_t uid) {
+ // PDB always uses the translation unit decl context for everything. We can
+ // improve this later
+ // but it's not easy because PDB doesn't provide a high enough level of type
+ // fidelity in this area.
+ return *m_tu_decl_ctx_up;
}
-uint32_t
-SymbolFilePDB::FindFunctions(const lldb_private::RegularExpression &regex, bool include_inlines, bool append,
- lldb_private::SymbolContextList &sc_list)
-{
- return uint32_t();
+lldb_private::CompilerDeclContext
+SymbolFilePDB::GetDeclContextContainingUID(lldb::user_id_t uid) {
+ return *m_tu_decl_ctx_up;
}
-void
-SymbolFilePDB::GetMangledNamesForFunction(const std::string &scope_qualified_name,
- std::vector<lldb_private::ConstString> &mangled_names)
-{
-}
+void SymbolFilePDB::ParseDeclsForContext(
+ lldb_private::CompilerDeclContext decl_ctx) {}
uint32_t
-SymbolFilePDB::FindTypes(const lldb_private::SymbolContext &sc, const lldb_private::ConstString &name,
- const lldb_private::CompilerDeclContext *parent_decl_ctx, bool append, uint32_t max_matches,
- llvm::DenseSet<lldb_private::SymbolFile *> &searched_symbol_files,
- lldb_private::TypeMap &types)
-{
- if (!append)
- types.Clear();
- if (!name)
- return 0;
-
- searched_symbol_files.clear();
- searched_symbol_files.insert(this);
-
- std::string name_str = name.AsCString();
-
- // If this might be a regex, we have to return EVERY symbol and process them one by one, which is going
- // to destroy performance on large PDB files. So try really hard not to use a regex match.
- if (name_str.find_first_of("[]?*.-+\\") != std::string::npos)
- FindTypesByRegex(name_str, max_matches, types);
- else
- FindTypesByName(name_str, max_matches, types);
- return types.GetSize();
-}
-
-void
-SymbolFilePDB::FindTypesByRegex(const std::string &regex, uint32_t max_matches, lldb_private::TypeMap &types)
-{
- // When searching by regex, we need to go out of our way to limit the search space as much as possible, since
- // the way this is implemented is by searching EVERYTHING in the PDB and manually doing a regex compare. PDB
- // library isn't optimized for regex searches or searches across multiple symbol types at the same time, so the
- // best we can do is to search enums, then typedefs, then classes one by one, and do a regex compare against all
- // of them.
- PDB_SymType tags_to_search[] = {PDB_SymType::Enum, PDB_SymType::Typedef, PDB_SymType::UDT};
- auto global = m_session_up->getGlobalScope();
- std::unique_ptr<IPDBEnumSymbols> results;
-
- std::regex re(regex);
-
- uint32_t matches = 0;
-
- for (auto tag : tags_to_search)
- {
- results = global->findAllChildren(tag);
- while (auto result = results->getNext())
- {
- if (max_matches > 0 && matches >= max_matches)
- break;
-
- std::string type_name;
- if (auto enum_type = llvm::dyn_cast<PDBSymbolTypeEnum>(result.get()))
- type_name = enum_type->getName();
- else if (auto typedef_type = llvm::dyn_cast<PDBSymbolTypeTypedef>(result.get()))
- type_name = typedef_type->getName();
- else if (auto class_type = llvm::dyn_cast<PDBSymbolTypeUDT>(result.get()))
- type_name = class_type->getName();
- else
- {
- // We're only looking for types that have names. Skip symbols, as well as
- // unnamed types such as arrays, pointers, etc.
- continue;
- }
-
- if (!std::regex_match(type_name, re))
- continue;
-
- // This should cause the type to get cached and stored in the `m_types` lookup.
- if (!ResolveTypeUID(result->getSymIndexId()))
- continue;
-
- auto iter = m_types.find(result->getSymIndexId());
- if (iter == m_types.end())
- continue;
- types.Insert(iter->second);
- ++matches;
- }
+SymbolFilePDB::ResolveSymbolContext(const lldb_private::Address &so_addr,
+ uint32_t resolve_scope,
+ lldb_private::SymbolContext &sc) {
+ return uint32_t();
+}
+
+uint32_t SymbolFilePDB::ResolveSymbolContext(
+ const lldb_private::FileSpec &file_spec, uint32_t line, bool check_inlines,
+ uint32_t resolve_scope, lldb_private::SymbolContextList &sc_list) {
+ if (resolve_scope & lldb::eSymbolContextCompUnit) {
+ // Locate all compilation units with line numbers referencing the specified
+ // file. For example, if
+ // `file_spec` is <vector>, then this should return all source files and
+ // header files that reference
+ // <vector>, either directly or indirectly.
+ auto compilands = m_session_up->findCompilandsForSourceFile(
+ file_spec.GetPath(), PDB_NameSearchFlags::NS_CaseInsensitive);
+
+ // For each one, either find get its previously parsed data, or parse it
+ // afresh and add it to
+ // the symbol context list.
+ while (auto compiland = compilands->getNext()) {
+ // If we're not checking inlines, then don't add line information for this
+ // file unless the FileSpec
+ // matches.
+ if (!check_inlines) {
+ // `getSourceFileName` returns the basename of the original source file
+ // used to generate this compiland.
+ // It does not return the full path. Currently the only way to get that
+ // is to do a basename lookup to
+ // get the IPDBSourceFile, but this is ambiguous in the case of two
+ // source files with the same name
+ // contributing to the same compiland. This is a moderately extreme
+ // edge case, so we consider this ok
+ // for now, although we need to find a long term solution.
+ std::string source_file = compiland->getSourceFileName();
+ auto pdb_file = m_session_up->findOneSourceFile(
+ compiland.get(), source_file,
+ PDB_NameSearchFlags::NS_CaseInsensitive);
+ source_file = pdb_file->getFileName();
+ FileSpec this_spec(source_file, false, FileSpec::ePathSyntaxWindows);
+ if (!file_spec.FileEquals(this_spec))
+ continue;
+ }
+
+ SymbolContext sc;
+ auto cu = ParseCompileUnitForSymIndex(compiland->getSymIndexId());
+ sc.comp_unit = cu.get();
+ sc.module_sp = cu->GetModule();
+ sc_list.Append(sc);
+
+ // If we were asked to resolve line entries, add all entries to the line
+ // table that match the requested
+ // line (or all lines if `line` == 0)
+ if (resolve_scope & lldb::eSymbolContextLineEntry)
+ ParseCompileUnitLineTable(sc, line);
}
+ }
+ return sc_list.GetSize();
}
-void
-SymbolFilePDB::FindTypesByName(const std::string &name, uint32_t max_matches, lldb_private::TypeMap &types)
-{
- auto global = m_session_up->getGlobalScope();
- std::unique_ptr<IPDBEnumSymbols> results;
- results = global->findChildren(PDB_SymType::None, name.c_str(), PDB_NameSearchFlags::NS_Default);
-
- uint32_t matches = 0;
-
- while (auto result = results->getNext())
- {
- if (max_matches > 0 && matches >= max_matches)
- break;
- switch (result->getSymTag())
- {
- case PDB_SymType::Enum:
- case PDB_SymType::UDT:
- case PDB_SymType::Typedef:
- break;
- default:
- // We're only looking for types that have names. Skip symbols, as well as
- // unnamed types such as arrays, pointers, etc.
- continue;
- }
+uint32_t SymbolFilePDB::FindGlobalVariables(
+ const lldb_private::ConstString &name,
+ const lldb_private::CompilerDeclContext *parent_decl_ctx, bool append,
+ uint32_t max_matches, lldb_private::VariableList &variables) {
+ return uint32_t();
+}
- // This should cause the type to get cached and stored in the `m_types` lookup.
- if (!ResolveTypeUID(result->getSymIndexId()))
- continue;
+uint32_t
+SymbolFilePDB::FindGlobalVariables(const lldb_private::RegularExpression &regex,
+ bool append, uint32_t max_matches,
+ lldb_private::VariableList &variables) {
+ return uint32_t();
+}
- auto iter = m_types.find(result->getSymIndexId());
- if (iter == m_types.end())
- continue;
- types.Insert(iter->second);
- ++matches;
- }
+uint32_t SymbolFilePDB::FindFunctions(
+ const lldb_private::ConstString &name,
+ const lldb_private::CompilerDeclContext *parent_decl_ctx,
+ uint32_t name_type_mask, bool include_inlines, bool append,
+ lldb_private::SymbolContextList &sc_list) {
+ return uint32_t();
}
-size_t
-SymbolFilePDB::FindTypes(const std::vector<lldb_private::CompilerContext> &contexts, bool append,
- lldb_private::TypeMap &types)
-{
+uint32_t
+SymbolFilePDB::FindFunctions(const lldb_private::RegularExpression &regex,
+ bool include_inlines, bool append,
+ lldb_private::SymbolContextList &sc_list) {
+ return uint32_t();
+}
+
+void SymbolFilePDB::GetMangledNamesForFunction(
+ const std::string &scope_qualified_name,
+ std::vector<lldb_private::ConstString> &mangled_names) {}
+
+uint32_t SymbolFilePDB::FindTypes(
+ const lldb_private::SymbolContext &sc,
+ const lldb_private::ConstString &name,
+ const lldb_private::CompilerDeclContext *parent_decl_ctx, bool append,
+ uint32_t max_matches,
+ llvm::DenseSet<lldb_private::SymbolFile *> &searched_symbol_files,
+ lldb_private::TypeMap &types) {
+ if (!append)
+ types.Clear();
+ if (!name)
return 0;
-}
-lldb_private::TypeList *
-SymbolFilePDB::GetTypeList()
-{
- return nullptr;
-}
+ searched_symbol_files.clear();
+ searched_symbol_files.insert(this);
+
+ std::string name_str = name.AsCString();
+
+ // If this might be a regex, we have to return EVERY symbol and process them
+ // one by one, which is going
+ // to destroy performance on large PDB files. So try really hard not to use a
+ // regex match.
+ if (name_str.find_first_of("[]?*.-+\\") != std::string::npos)
+ FindTypesByRegex(name_str, max_matches, types);
+ else
+ FindTypesByName(name_str, max_matches, types);
+ return types.GetSize();
+}
+
+void SymbolFilePDB::FindTypesByRegex(const std::string &regex,
+ uint32_t max_matches,
+ lldb_private::TypeMap &types) {
+ // When searching by regex, we need to go out of our way to limit the search
+ // space as much as possible, since
+ // the way this is implemented is by searching EVERYTHING in the PDB and
+ // manually doing a regex compare. PDB
+ // library isn't optimized for regex searches or searches across multiple
+ // symbol types at the same time, so the
+ // best we can do is to search enums, then typedefs, then classes one by one,
+ // and do a regex compare against all
+ // of them.
+ PDB_SymType tags_to_search[] = {PDB_SymType::Enum, PDB_SymType::Typedef,
+ PDB_SymType::UDT};
+ auto global = m_session_up->getGlobalScope();
+ std::unique_ptr<IPDBEnumSymbols> results;
+
+ std::regex re(regex);
+
+ uint32_t matches = 0;
+
+ for (auto tag : tags_to_search) {
+ results = global->findAllChildren(tag);
+ while (auto result = results->getNext()) {
+ if (max_matches > 0 && matches >= max_matches)
+ break;
+
+ std::string type_name;
+ if (auto enum_type = llvm::dyn_cast<PDBSymbolTypeEnum>(result.get()))
+ type_name = enum_type->getName();
+ else if (auto typedef_type =
+ llvm::dyn_cast<PDBSymbolTypeTypedef>(result.get()))
+ type_name = typedef_type->getName();
+ else if (auto class_type = llvm::dyn_cast<PDBSymbolTypeUDT>(result.get()))
+ type_name = class_type->getName();
+ else {
+ // We're only looking for types that have names. Skip symbols, as well
+ // as
+ // unnamed types such as arrays, pointers, etc.
+ continue;
+ }
+
+ if (!std::regex_match(type_name, re))
+ continue;
+
+ // This should cause the type to get cached and stored in the `m_types`
+ // lookup.
+ if (!ResolveTypeUID(result->getSymIndexId()))
+ continue;
+
+ auto iter = m_types.find(result->getSymIndexId());
+ if (iter == m_types.end())
+ continue;
+ types.Insert(iter->second);
+ ++matches;
+ }
+ }
+}
+
+void SymbolFilePDB::FindTypesByName(const std::string &name,
+ uint32_t max_matches,
+ lldb_private::TypeMap &types) {
+ auto global = m_session_up->getGlobalScope();
+ std::unique_ptr<IPDBEnumSymbols> results;
+ results = global->findChildren(PDB_SymType::None, name,
+ PDB_NameSearchFlags::NS_Default);
+
+ uint32_t matches = 0;
+
+ while (auto result = results->getNext()) {
+ if (max_matches > 0 && matches >= max_matches)
+ break;
+ switch (result->getSymTag()) {
+ case PDB_SymType::Enum:
+ case PDB_SymType::UDT:
+ case PDB_SymType::Typedef:
+ break;
+ default:
+ // We're only looking for types that have names. Skip symbols, as well as
+ // unnamed types such as arrays, pointers, etc.
+ continue;
+ }
-size_t
-SymbolFilePDB::GetTypes(lldb_private::SymbolContextScope *sc_scope, uint32_t type_mask,
- lldb_private::TypeList &type_list)
-{
- return size_t();
-}
+ // This should cause the type to get cached and stored in the `m_types`
+ // lookup.
+ if (!ResolveTypeUID(result->getSymIndexId()))
+ continue;
-lldb_private::TypeSystem *
-SymbolFilePDB::GetTypeSystemForLanguage(lldb::LanguageType language)
-{
- auto type_system = m_obj_file->GetModule()->GetTypeSystemForLanguage(language);
- if (type_system)
- type_system->SetSymbolFile(this);
- return type_system;
+ auto iter = m_types.find(result->getSymIndexId());
+ if (iter == m_types.end())
+ continue;
+ types.Insert(iter->second);
+ ++matches;
+ }
}
-lldb_private::CompilerDeclContext
-SymbolFilePDB::FindNamespace(const lldb_private::SymbolContext &sc, const lldb_private::ConstString &name,
- const lldb_private::CompilerDeclContext *parent_decl_ctx)
-{
- return lldb_private::CompilerDeclContext();
+size_t SymbolFilePDB::FindTypes(
+ const std::vector<lldb_private::CompilerContext> &contexts, bool append,
+ lldb_private::TypeMap &types) {
+ return 0;
}
-lldb_private::ConstString
-SymbolFilePDB::GetPluginName()
-{
- static ConstString g_name("pdb");
- return g_name;
+lldb_private::TypeList *SymbolFilePDB::GetTypeList() { return nullptr; }
+
+size_t SymbolFilePDB::GetTypes(lldb_private::SymbolContextScope *sc_scope,
+ uint32_t type_mask,
+ lldb_private::TypeList &type_list) {
+ return size_t();
}
-uint32_t
-SymbolFilePDB::GetPluginVersion()
-{
- return 1;
-}
-
-IPDBSession &
-SymbolFilePDB::GetPDBSession()
-{
- return *m_session_up;
-}
-
-const IPDBSession &
-SymbolFilePDB::GetPDBSession() const
-{
- return *m_session_up;
-}
-
-lldb::CompUnitSP
-SymbolFilePDB::ParseCompileUnitForSymIndex(uint32_t id)
-{
- auto found_cu = m_comp_units.find(id);
- if (found_cu != m_comp_units.end())
- return found_cu->second;
-
- auto cu = m_session_up->getConcreteSymbolById<PDBSymbolCompiland>(id);
-
- // `getSourceFileName` returns the basename of the original source file used to generate this compiland. It does
- // not return the full path. Currently the only way to get that is to do a basename lookup to get the
- // IPDBSourceFile, but this is ambiguous in the case of two source files with the same name contributing to the
- // same compiland. This is a moderately extreme edge case, so we consider this ok for now, although we need to find
- // a long term solution.
- auto file =
- m_session_up->findOneSourceFile(cu.get(), cu->getSourceFileName(), PDB_NameSearchFlags::NS_CaseInsensitive);
- std::string path = file->getFileName();
-
- lldb::LanguageType lang;
- auto details = cu->findOneChild<PDBSymbolCompilandDetails>();
- if (!details)
- lang = lldb::eLanguageTypeC_plus_plus;
- else
- lang = TranslateLanguage(details->getLanguage());
-
- // Don't support optimized code for now, DebugInfoPDB does not return this information.
- LazyBool optimized = eLazyBoolNo;
- auto result = std::make_shared<CompileUnit>(m_obj_file->GetModule(), nullptr, path.c_str(), id, lang, optimized);
- m_comp_units.insert(std::make_pair(id, result));
- return result;
-}
-
-bool
-SymbolFilePDB::ParseCompileUnitLineTable(const lldb_private::SymbolContext &sc, uint32_t match_line)
-{
- auto global = m_session_up->getGlobalScope();
- auto cu = m_session_up->getConcreteSymbolById<PDBSymbolCompiland>(sc.comp_unit->GetID());
-
- // LineEntry needs the *index* of the file into the list of support files returned by
- // ParseCompileUnitSupportFiles. But the underlying SDK gives us a globally unique
- // idenfitifier in the namespace of the PDB. So, we have to do a mapping so that we
- // can hand out indices.
- llvm::DenseMap<uint32_t, uint32_t> index_map;
- BuildSupportFileIdToSupportFileIndexMap(*cu, index_map);
- auto line_table = llvm::make_unique<LineTable>(sc.comp_unit);
-
- // Find contributions to `cu` from all source and header files.
- std::string path = sc.comp_unit->GetPath();
- auto files = m_session_up->getSourceFilesForCompiland(*cu);
-
- // For each source and header file, create a LineSequence for contributions to the cu
- // from that file, and add the sequence.
- while (auto file = files->getNext())
- {
- std::unique_ptr<LineSequence> sequence(line_table->CreateLineSequenceContainer());
- auto lines = m_session_up->findLineNumbers(*cu, *file);
- int entry_count = lines->getChildCount();
-
- uint64_t prev_addr;
- uint32_t prev_length;
- uint32_t prev_line;
- uint32_t prev_source_idx;
-
- for (int i = 0; i < entry_count; ++i)
- {
- auto line = lines->getChildAtIndex(i);
-
- uint64_t lno = line->getLineNumber();
- uint64_t addr = line->getVirtualAddress();
- uint32_t length = line->getLength();
- uint32_t source_id = line->getSourceFileId();
- uint32_t col = line->getColumnNumber();
- uint32_t source_idx = index_map[source_id];
-
- // There was a gap between the current entry and the previous entry if the addresses don't perfectly line
- // up.
- bool is_gap = (i > 0) && (prev_addr + prev_length < addr);
-
- // Before inserting the current entry, insert a terminal entry at the end of the previous entry's address
- // range if the current entry resulted in a gap from the previous entry.
- if (is_gap && ShouldAddLine(match_line, prev_line, prev_length))
- {
- line_table->AppendLineEntryToSequence(sequence.get(), prev_addr + prev_length, prev_line, 0,
- prev_source_idx, false, false, false, false, true);
- }
-
- if (ShouldAddLine(match_line, lno, length))
- {
- bool is_statement = line->isStatement();
- bool is_prologue = false;
- bool is_epilogue = false;
- auto func = m_session_up->findSymbolByAddress(addr, PDB_SymType::Function);
- if (func)
- {
- auto prologue = func->findOneChild<PDBSymbolFuncDebugStart>();
- is_prologue = (addr == prologue->getVirtualAddress());
-
- auto epilogue = func->findOneChild<PDBSymbolFuncDebugEnd>();
- is_epilogue = (addr == epilogue->getVirtualAddress());
- }
-
- line_table->AppendLineEntryToSequence(sequence.get(), addr, lno, col, source_idx, is_statement, false,
- is_prologue, is_epilogue, false);
- }
-
- prev_addr = addr;
- prev_length = length;
- prev_line = lno;
- prev_source_idx = source_idx;
+lldb_private::TypeSystem *
+SymbolFilePDB::GetTypeSystemForLanguage(lldb::LanguageType language) {
+ auto type_system =
+ m_obj_file->GetModule()->GetTypeSystemForLanguage(language);
+ if (type_system)
+ type_system->SetSymbolFile(this);
+ return type_system;
+}
+
+lldb_private::CompilerDeclContext SymbolFilePDB::FindNamespace(
+ const lldb_private::SymbolContext &sc,
+ const lldb_private::ConstString &name,
+ const lldb_private::CompilerDeclContext *parent_decl_ctx) {
+ return lldb_private::CompilerDeclContext();
+}
+
+lldb_private::ConstString SymbolFilePDB::GetPluginName() {
+ static ConstString g_name("pdb");
+ return g_name;
+}
+
+uint32_t SymbolFilePDB::GetPluginVersion() { return 1; }
+
+IPDBSession &SymbolFilePDB::GetPDBSession() { return *m_session_up; }
+
+const IPDBSession &SymbolFilePDB::GetPDBSession() const {
+ return *m_session_up;
+}
+
+lldb::CompUnitSP SymbolFilePDB::ParseCompileUnitForSymIndex(uint32_t id) {
+ auto found_cu = m_comp_units.find(id);
+ if (found_cu != m_comp_units.end())
+ return found_cu->second;
+
+ auto cu = m_session_up->getConcreteSymbolById<PDBSymbolCompiland>(id);
+
+ // `getSourceFileName` returns the basename of the original source file used
+ // to generate this compiland. It does
+ // not return the full path. Currently the only way to get that is to do a
+ // basename lookup to get the
+ // IPDBSourceFile, but this is ambiguous in the case of two source files with
+ // the same name contributing to the
+ // same compiland. This is a moderately extreme edge case, so we consider this
+ // ok for now, although we need to find
+ // a long term solution.
+ auto file =
+ m_session_up->findOneSourceFile(cu.get(), cu->getSourceFileName(),
+ PDB_NameSearchFlags::NS_CaseInsensitive);
+ std::string path = file->getFileName();
+
+ lldb::LanguageType lang;
+ auto details = cu->findOneChild<PDBSymbolCompilandDetails>();
+ if (!details)
+ lang = lldb::eLanguageTypeC_plus_plus;
+ else
+ lang = TranslateLanguage(details->getLanguage());
+
+ // Don't support optimized code for now, DebugInfoPDB does not return this
+ // information.
+ LazyBool optimized = eLazyBoolNo;
+ auto result = std::make_shared<CompileUnit>(
+ m_obj_file->GetModule(), nullptr, path.c_str(), id, lang, optimized);
+ m_comp_units.insert(std::make_pair(id, result));
+ return result;
+}
+
+bool SymbolFilePDB::ParseCompileUnitLineTable(
+ const lldb_private::SymbolContext &sc, uint32_t match_line) {
+ auto global = m_session_up->getGlobalScope();
+ auto cu = m_session_up->getConcreteSymbolById<PDBSymbolCompiland>(
+ sc.comp_unit->GetID());
+
+ // LineEntry needs the *index* of the file into the list of support files
+ // returned by
+ // ParseCompileUnitSupportFiles. But the underlying SDK gives us a globally
+ // unique
+ // idenfitifier in the namespace of the PDB. So, we have to do a mapping so
+ // that we
+ // can hand out indices.
+ llvm::DenseMap<uint32_t, uint32_t> index_map;
+ BuildSupportFileIdToSupportFileIndexMap(*cu, index_map);
+ auto line_table = llvm::make_unique<LineTable>(sc.comp_unit);
+
+ // Find contributions to `cu` from all source and header files.
+ std::string path = sc.comp_unit->GetPath();
+ auto files = m_session_up->getSourceFilesForCompiland(*cu);
+
+ // For each source and header file, create a LineSequence for contributions to
+ // the cu
+ // from that file, and add the sequence.
+ while (auto file = files->getNext()) {
+ std::unique_ptr<LineSequence> sequence(
+ line_table->CreateLineSequenceContainer());
+ auto lines = m_session_up->findLineNumbers(*cu, *file);
+ int entry_count = lines->getChildCount();
+
+ uint64_t prev_addr;
+ uint32_t prev_length;
+ uint32_t prev_line;
+ uint32_t prev_source_idx;
+
+ for (int i = 0; i < entry_count; ++i) {
+ auto line = lines->getChildAtIndex(i);
+
+ uint64_t lno = line->getLineNumber();
+ uint64_t addr = line->getVirtualAddress();
+ uint32_t length = line->getLength();
+ uint32_t source_id = line->getSourceFileId();
+ uint32_t col = line->getColumnNumber();
+ uint32_t source_idx = index_map[source_id];
+
+ // There was a gap between the current entry and the previous entry if the
+ // addresses don't perfectly line
+ // up.
+ bool is_gap = (i > 0) && (prev_addr + prev_length < addr);
+
+ // Before inserting the current entry, insert a terminal entry at the end
+ // of the previous entry's address
+ // range if the current entry resulted in a gap from the previous entry.
+ if (is_gap && ShouldAddLine(match_line, prev_line, prev_length)) {
+ line_table->AppendLineEntryToSequence(
+ sequence.get(), prev_addr + prev_length, prev_line, 0,
+ prev_source_idx, false, false, false, false, true);
+ }
+
+ if (ShouldAddLine(match_line, lno, length)) {
+ bool is_statement = line->isStatement();
+ bool is_prologue = false;
+ bool is_epilogue = false;
+ auto func =
+ m_session_up->findSymbolByAddress(addr, PDB_SymType::Function);
+ if (func) {
+ auto prologue = func->findOneChild<PDBSymbolFuncDebugStart>();
+ is_prologue = (addr == prologue->getVirtualAddress());
+
+ auto epilogue = func->findOneChild<PDBSymbolFuncDebugEnd>();
+ is_epilogue = (addr == epilogue->getVirtualAddress());
}
- if (entry_count > 0 && ShouldAddLine(match_line, prev_line, prev_length))
- {
- // The end is always a terminal entry, so insert it regardless.
- line_table->AppendLineEntryToSequence(sequence.get(), prev_addr + prev_length, prev_line, 0,
- prev_source_idx, false, false, false, false, true);
- }
+ line_table->AppendLineEntryToSequence(sequence.get(), addr, lno, col,
+ source_idx, is_statement, false,
+ is_prologue, is_epilogue, false);
+ }
- line_table->InsertSequence(sequence.release());
+ prev_addr = addr;
+ prev_length = length;
+ prev_line = lno;
+ prev_source_idx = source_idx;
}
- sc.comp_unit->SetLineTable(line_table.release());
- return true;
-}
-
-void
-SymbolFilePDB::BuildSupportFileIdToSupportFileIndexMap(const PDBSymbolCompiland &cu,
- llvm::DenseMap<uint32_t, uint32_t> &index_map) const
-{
- // This is a hack, but we need to convert the source id into an index into the support
- // files array. We don't want to do path comparisons to avoid basename / full path
- // issues that may or may not even be a problem, so we use the globally unique source
- // file identifiers. Ideally we could use the global identifiers everywhere, but LineEntry
- // currently assumes indices.
- auto source_files = m_session_up->getSourceFilesForCompiland(cu);
- int index = 0;
-
- while (auto file = source_files->getNext())
- {
- uint32_t source_id = file->getUniqueId();
- index_map[source_id] = index++;
+ if (entry_count > 0 && ShouldAddLine(match_line, prev_line, prev_length)) {
+ // The end is always a terminal entry, so insert it regardless.
+ line_table->AppendLineEntryToSequence(
+ sequence.get(), prev_addr + prev_length, prev_line, 0,
+ prev_source_idx, false, false, false, false, true);
}
+
+ line_table->InsertSequence(sequence.release());
+ }
+
+ sc.comp_unit->SetLineTable(line_table.release());
+ return true;
+}
+
+void SymbolFilePDB::BuildSupportFileIdToSupportFileIndexMap(
+ const PDBSymbolCompiland &cu,
+ llvm::DenseMap<uint32_t, uint32_t> &index_map) const {
+ // This is a hack, but we need to convert the source id into an index into the
+ // support
+ // files array. We don't want to do path comparisons to avoid basename / full
+ // path
+ // issues that may or may not even be a problem, so we use the globally unique
+ // source
+ // file identifiers. Ideally we could use the global identifiers everywhere,
+ // but LineEntry
+ // currently assumes indices.
+ auto source_files = m_session_up->getSourceFilesForCompiland(cu);
+ int index = 0;
+
+ while (auto file = source_files->getNext()) {
+ uint32_t source_id = file->getUniqueId();
+ index_map[source_id] = index++;
+ }
}
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