| //===-- SymbolFileSymtab.cpp ------------------------------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "SymbolFileSymtab.h" |
| #include "lldb/Core/Module.h" |
| #include "lldb/Core/PluginManager.h" |
| #include "lldb/Core/RegularExpression.h" |
| #include "lldb/Core/Timer.h" |
| #include "lldb/Symbol/ClangExternalASTSourceCommon.h" |
| #include "lldb/Symbol/CompileUnit.h" |
| #include "lldb/Symbol/Function.h" |
| #include "lldb/Symbol/ObjectFile.h" |
| #include "lldb/Symbol/ObjectFile.h" |
| #include "lldb/Symbol/Symbol.h" |
| #include "lldb/Symbol/SymbolContext.h" |
| #include "lldb/Symbol/Symtab.h" |
| #include "lldb/Symbol/TypeList.h" |
| |
| using namespace lldb; |
| using namespace lldb_private; |
| |
| void |
| SymbolFileSymtab::Initialize() |
| { |
| PluginManager::RegisterPlugin (GetPluginNameStatic(), |
| GetPluginDescriptionStatic(), |
| CreateInstance); |
| } |
| |
| void |
| SymbolFileSymtab::Terminate() |
| { |
| PluginManager::UnregisterPlugin (CreateInstance); |
| } |
| |
| |
| lldb_private::ConstString |
| SymbolFileSymtab::GetPluginNameStatic() |
| { |
| static ConstString g_name("symtab"); |
| return g_name; |
| } |
| |
| const char * |
| SymbolFileSymtab::GetPluginDescriptionStatic() |
| { |
| return "Reads debug symbols from an object file's symbol table."; |
| } |
| |
| |
| SymbolFile* |
| SymbolFileSymtab::CreateInstance (ObjectFile* obj_file) |
| { |
| return new SymbolFileSymtab(obj_file); |
| } |
| |
| size_t |
| SymbolFileSymtab::GetTypes (SymbolContextScope *sc_scope, uint32_t type_mask, lldb_private::TypeList &type_list) |
| { |
| return 0; |
| } |
| |
| SymbolFileSymtab::SymbolFileSymtab(ObjectFile* obj_file) : |
| SymbolFile(obj_file), |
| m_source_indexes(), |
| m_func_indexes(), |
| m_code_indexes(), |
| m_objc_class_name_to_index () |
| { |
| } |
| |
| SymbolFileSymtab::~SymbolFileSymtab() |
| { |
| } |
| |
| ClangASTContext & |
| SymbolFileSymtab::GetClangASTContext () |
| { |
| ClangASTContext &ast = m_obj_file->GetModule()->GetClangASTContext(); |
| |
| return ast; |
| } |
| |
| uint32_t |
| SymbolFileSymtab::CalculateAbilities () |
| { |
| uint32_t abilities = 0; |
| if (m_obj_file) |
| { |
| const Symtab *symtab = m_obj_file->GetSymtab(); |
| if (symtab) |
| { |
| //---------------------------------------------------------------------- |
| // The snippet of code below will get the indexes the module symbol |
| // table entries that are code, data, or function related (debug info), |
| // sort them by value (address) and dump the sorted symbols. |
| //---------------------------------------------------------------------- |
| if (symtab->AppendSymbolIndexesWithType(eSymbolTypeSourceFile, m_source_indexes)) |
| { |
| abilities |= CompileUnits; |
| } |
| |
| if (symtab->AppendSymbolIndexesWithType(eSymbolTypeCode, Symtab::eDebugYes, Symtab::eVisibilityAny, m_func_indexes)) |
| { |
| symtab->SortSymbolIndexesByValue(m_func_indexes, true); |
| abilities |= Functions; |
| } |
| |
| if (symtab->AppendSymbolIndexesWithType(eSymbolTypeCode, Symtab::eDebugNo, Symtab::eVisibilityAny, m_code_indexes)) |
| { |
| symtab->SortSymbolIndexesByValue(m_code_indexes, true); |
| } |
| |
| if (symtab->AppendSymbolIndexesWithType(eSymbolTypeData, m_data_indexes)) |
| { |
| symtab->SortSymbolIndexesByValue(m_data_indexes, true); |
| abilities |= GlobalVariables; |
| } |
| |
| lldb_private::Symtab::IndexCollection objc_class_indexes; |
| if (symtab->AppendSymbolIndexesWithType (eSymbolTypeObjCClass, objc_class_indexes)) |
| { |
| symtab->AppendSymbolNamesToMap (objc_class_indexes, |
| true, |
| true, |
| m_objc_class_name_to_index); |
| m_objc_class_name_to_index.Sort(); |
| } |
| } |
| } |
| return abilities; |
| } |
| |
| uint32_t |
| SymbolFileSymtab::GetNumCompileUnits() |
| { |
| // If we don't have any source file symbols we will just have one compile unit for |
| // the entire object file |
| if (m_source_indexes.empty()) |
| return 0; |
| |
| // If we have any source file symbols we will logically organize the object symbols |
| // using these. |
| return m_source_indexes.size(); |
| } |
| |
| CompUnitSP |
| SymbolFileSymtab::ParseCompileUnitAtIndex(uint32_t idx) |
| { |
| CompUnitSP cu_sp; |
| |
| // If we don't have any source file symbols we will just have one compile unit for |
| // the entire object file |
| if (idx < m_source_indexes.size()) |
| { |
| const Symbol *cu_symbol = m_obj_file->GetSymtab()->SymbolAtIndex(m_source_indexes[idx]); |
| if (cu_symbol) |
| cu_sp.reset(new CompileUnit (m_obj_file->GetModule(), NULL, cu_symbol->GetMangled().GetName().AsCString(), 0, eLanguageTypeUnknown)); |
| } |
| return cu_sp; |
| } |
| |
| lldb::LanguageType |
| SymbolFileSymtab::ParseCompileUnitLanguage (const SymbolContext& sc) |
| { |
| return eLanguageTypeUnknown; |
| } |
| |
| |
| size_t |
| SymbolFileSymtab::ParseCompileUnitFunctions (const SymbolContext &sc) |
| { |
| size_t num_added = 0; |
| // We must at least have a valid compile unit |
| assert (sc.comp_unit != NULL); |
| const Symtab *symtab = m_obj_file->GetSymtab(); |
| const Symbol *curr_symbol = NULL; |
| const Symbol *next_symbol = NULL; |
| // const char *prefix = m_obj_file->SymbolPrefix(); |
| // if (prefix == NULL) |
| // prefix == ""; |
| // |
| // const uint32_t prefix_len = strlen(prefix); |
| |
| // If we don't have any source file symbols we will just have one compile unit for |
| // the entire object file |
| if (m_source_indexes.empty()) |
| { |
| // The only time we will have a user ID of zero is when we don't have |
| // and source file symbols and we declare one compile unit for the |
| // entire object file |
| if (!m_func_indexes.empty()) |
| { |
| |
| } |
| |
| if (!m_code_indexes.empty()) |
| { |
| // StreamFile s(stdout); |
| // symtab->Dump(&s, m_code_indexes); |
| |
| uint32_t idx = 0; // Index into the indexes |
| const uint32_t num_indexes = m_code_indexes.size(); |
| for (idx = 0; idx < num_indexes; ++idx) |
| { |
| uint32_t symbol_idx = m_code_indexes[idx]; |
| curr_symbol = symtab->SymbolAtIndex(symbol_idx); |
| if (curr_symbol) |
| { |
| // Union of all ranges in the function DIE (if the function is discontiguous) |
| AddressRange func_range(curr_symbol->GetAddress(), 0); |
| if (func_range.GetBaseAddress().IsSectionOffset()) |
| { |
| uint32_t symbol_size = curr_symbol->GetByteSize(); |
| if (symbol_size != 0 && !curr_symbol->GetSizeIsSibling()) |
| func_range.SetByteSize(symbol_size); |
| else if (idx + 1 < num_indexes) |
| { |
| next_symbol = symtab->SymbolAtIndex(m_code_indexes[idx + 1]); |
| if (next_symbol) |
| { |
| func_range.SetByteSize(next_symbol->GetAddress().GetOffset() - curr_symbol->GetAddress().GetOffset()); |
| } |
| } |
| |
| FunctionSP func_sp(new Function(sc.comp_unit, |
| symbol_idx, // UserID is the DIE offset |
| LLDB_INVALID_UID, // We don't have any type info for this function |
| curr_symbol->GetMangled(), // Linker/mangled name |
| NULL, // no return type for a code symbol... |
| func_range)); // first address range |
| |
| if (func_sp.get() != NULL) |
| { |
| sc.comp_unit->AddFunction(func_sp); |
| ++num_added; |
| } |
| } |
| } |
| } |
| |
| } |
| } |
| else |
| { |
| // We assume we |
| } |
| return num_added; |
| } |
| |
| bool |
| SymbolFileSymtab::ParseCompileUnitLineTable (const SymbolContext &sc) |
| { |
| return false; |
| } |
| |
| bool |
| SymbolFileSymtab::ParseCompileUnitSupportFiles (const SymbolContext& sc, FileSpecList &support_files) |
| { |
| return false; |
| } |
| |
| size_t |
| SymbolFileSymtab::ParseFunctionBlocks (const SymbolContext &sc) |
| { |
| return 0; |
| } |
| |
| |
| size_t |
| SymbolFileSymtab::ParseTypes (const SymbolContext &sc) |
| { |
| return 0; |
| } |
| |
| |
| size_t |
| SymbolFileSymtab::ParseVariablesForContext (const SymbolContext& sc) |
| { |
| return 0; |
| } |
| |
| Type* |
| SymbolFileSymtab::ResolveTypeUID(lldb::user_id_t type_uid) |
| { |
| return NULL; |
| } |
| |
| bool |
| SymbolFileSymtab::ResolveClangOpaqueTypeDefinition (lldb_private::ClangASTType& clang_opaque_type) |
| { |
| return false; |
| } |
| |
| ClangNamespaceDecl |
| SymbolFileSymtab::FindNamespace (const SymbolContext& sc, const ConstString &name, const ClangNamespaceDecl *namespace_decl) |
| { |
| return ClangNamespaceDecl(); |
| } |
| |
| uint32_t |
| SymbolFileSymtab::ResolveSymbolContext (const Address& so_addr, uint32_t resolve_scope, SymbolContext& sc) |
| { |
| if (m_obj_file->GetSymtab() == NULL) |
| return 0; |
| |
| uint32_t resolved_flags = 0; |
| if (resolve_scope & eSymbolContextSymbol) |
| { |
| sc.symbol = m_obj_file->GetSymtab()->FindSymbolContainingFileAddress(so_addr.GetFileAddress()); |
| if (sc.symbol) |
| resolved_flags |= eSymbolContextSymbol; |
| } |
| return resolved_flags; |
| } |
| |
| uint32_t |
| SymbolFileSymtab::ResolveSymbolContext (const FileSpec& file_spec, uint32_t line, bool check_inlines, uint32_t resolve_scope, SymbolContextList& sc_list) |
| { |
| return 0; |
| } |
| |
| uint32_t |
| SymbolFileSymtab::FindGlobalVariables(const ConstString &name, const ClangNamespaceDecl *namespace_decl, bool append, uint32_t max_matches, VariableList& variables) |
| { |
| return 0; |
| } |
| |
| uint32_t |
| SymbolFileSymtab::FindGlobalVariables(const RegularExpression& regex, bool append, uint32_t max_matches, VariableList& variables) |
| { |
| return 0; |
| } |
| |
| uint32_t |
| SymbolFileSymtab::FindFunctions(const ConstString &name, const ClangNamespaceDecl *namespace_decl, uint32_t name_type_mask, bool include_inlines, bool append, SymbolContextList& sc_list) |
| { |
| Timer scoped_timer (__PRETTY_FUNCTION__, |
| "SymbolFileSymtab::FindFunctions (name = '%s')", |
| name.GetCString()); |
| // If we ever support finding STABS or COFF debug info symbols, |
| // we will need to add support here. We are not trying to find symbols |
| // here, just "lldb_private::Function" objects that come from complete |
| // debug information. Any symbol queries should go through the symbol |
| // table itself in the module's object file. |
| return 0; |
| } |
| |
| uint32_t |
| SymbolFileSymtab::FindFunctions(const RegularExpression& regex, bool include_inlines, bool append, SymbolContextList& sc_list) |
| { |
| Timer scoped_timer (__PRETTY_FUNCTION__, |
| "SymbolFileSymtab::FindFunctions (regex = '%s')", |
| regex.GetText()); |
| // If we ever support finding STABS or COFF debug info symbols, |
| // we will need to add support here. We are not trying to find symbols |
| // here, just "lldb_private::Function" objects that come from complete |
| // debug information. Any symbol queries should go through the symbol |
| // table itself in the module's object file. |
| return 0; |
| } |
| |
| uint32_t |
| SymbolFileSymtab::FindTypes (const lldb_private::SymbolContext& sc, |
| const lldb_private::ConstString &name, |
| const ClangNamespaceDecl *namespace_decl, |
| bool append, |
| uint32_t max_matches, |
| lldb_private::TypeList& types) |
| { |
| return 0; |
| } |
| |
| //------------------------------------------------------------------ |
| // PluginInterface protocol |
| //------------------------------------------------------------------ |
| lldb_private::ConstString |
| SymbolFileSymtab::GetPluginName() |
| { |
| return GetPluginNameStatic(); |
| } |
| |
| uint32_t |
| SymbolFileSymtab::GetPluginVersion() |
| { |
| return 1; |
| } |