diff options
Diffstat (limited to 'lldb/source/Plugins/ExpressionParser/Clang/ClangExpressionDeclMap.cpp')
| -rw-r--r-- | lldb/source/Plugins/ExpressionParser/Clang/ClangExpressionDeclMap.cpp | 292 |
1 files changed, 49 insertions, 243 deletions
diff --git a/lldb/source/Plugins/ExpressionParser/Clang/ClangExpressionDeclMap.cpp b/lldb/source/Plugins/ExpressionParser/Clang/ClangExpressionDeclMap.cpp index 6092efa484f..eab62aed6cb 100644 --- a/lldb/source/Plugins/ExpressionParser/Clang/ClangExpressionDeclMap.cpp +++ b/lldb/source/Plugins/ExpressionParser/Clang/ClangExpressionDeclMap.cpp @@ -515,248 +515,6 @@ ClangExpressionDeclMap::GetFunctionInfo return true; } -static void -FindCodeSymbolInContext -( - const ConstString &name, - SymbolContext &sym_ctx, - uint32_t name_type_mask, - SymbolContextList &sc_list -) -{ - sc_list.Clear(); - SymbolContextList temp_sc_list; - if (sym_ctx.module_sp) - sym_ctx.module_sp->FindFunctions(name, - NULL, - name_type_mask, - true, // include_symbols - false, // include_inlines - true, // append - temp_sc_list); - if (temp_sc_list.GetSize() == 0) - { - if (sym_ctx.target_sp) - sym_ctx.target_sp->GetImages().FindFunctions(name, - name_type_mask, - true, // include_symbols - false, // include_inlines - true, // append - temp_sc_list); - } - - SymbolContextList internal_symbol_sc_list; - unsigned temp_sc_list_size = temp_sc_list.GetSize(); - for (unsigned i = 0; i < temp_sc_list_size; i++) - { - SymbolContext sc; - temp_sc_list.GetContextAtIndex(i, sc); - if (sc.function) - { - sc_list.Append(sc); - } - else if (sc.symbol) - { - if (sc.symbol->IsExternal()) - { - sc_list.Append(sc); - } - else - { - internal_symbol_sc_list.Append(sc); - } - } - } - - // If we had internal symbols and we didn't find any external symbols or - // functions in debug info, then fallback to the internal symbols - if (sc_list.GetSize() == 0 && internal_symbol_sc_list.GetSize()) - { - sc_list = internal_symbol_sc_list; - } -} - -ConstString -FindBestAlternateMangledName -( - const ConstString &demangled, - const LanguageType &lang_type, - SymbolContext &sym_ctx -) -{ - CPlusPlusLanguage::MethodName cpp_name(demangled); - std::string scope_qualified_name = cpp_name.GetScopeQualifiedName(); - - if (!scope_qualified_name.size()) - return ConstString(); - - if (!sym_ctx.module_sp) - return ConstString(); - - SymbolVendor *sym_vendor = sym_ctx.module_sp->GetSymbolVendor(); - if (!sym_vendor) - return ConstString(); - - lldb_private::SymbolFile *sym_file = sym_vendor->GetSymbolFile(); - if (!sym_file) - return ConstString(); - - std::vector<ConstString> alternates; - sym_file->GetMangledNamesForFunction(scope_qualified_name, alternates); - - std::vector<ConstString> param_and_qual_matches; - std::vector<ConstString> param_matches; - for (size_t i = 0; i < alternates.size(); i++) - { - ConstString alternate_mangled_name = alternates[i]; - Mangled mangled(alternate_mangled_name, true); - ConstString demangled = mangled.GetDemangledName(lang_type); - - CPlusPlusLanguage::MethodName alternate_cpp_name(demangled); - if (!cpp_name.IsValid()) - continue; - - if (alternate_cpp_name.GetArguments() == cpp_name.GetArguments()) - { - if (alternate_cpp_name.GetQualifiers() == cpp_name.GetQualifiers()) - param_and_qual_matches.push_back(alternate_mangled_name); - else - param_matches.push_back(alternate_mangled_name); - } - } - - if (param_and_qual_matches.size()) - return param_and_qual_matches[0]; // It is assumed that there will be only one! - else if (param_matches.size()) - return param_matches[0]; // Return one of them as a best match - else - return ConstString(); -} - -bool -ClangExpressionDeclMap::GetFunctionAddress -( - const ConstString &name, - uint64_t &func_addr -) -{ - assert (m_parser_vars.get()); - - Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS)); - ExecutionContext &exe_ctx = m_parser_vars->m_exe_ctx; - Target *target = exe_ctx.GetTargetPtr(); - // Back out in all cases where we're not fully initialized - if (target == NULL) - return false; - if (!m_parser_vars->m_sym_ctx.target_sp) - return false; - - SymbolContextList sc_list; - - FindCodeSymbolInContext(name, m_parser_vars->m_sym_ctx, eFunctionNameTypeAuto, sc_list); - - uint32_t sc_list_size = sc_list.GetSize(); - - if (sc_list_size == 0) - { - SymbolContext &sc = m_parser_vars->m_sym_ctx; - if (sc.comp_unit) - { - LanguageType lang_type = sc.comp_unit->GetLanguage(); - if (Language::LanguageIsCPlusPlus(lang_type) && - CPlusPlusLanguage::IsCPPMangledName(name.AsCString())) - { - Mangled mangled(name, true); - ConstString demangled = mangled.GetDemangledName(lang_type); - - if (demangled) - { - ConstString best_alternate_mangled_name = FindBestAlternateMangledName(demangled, lang_type, sc); - if (best_alternate_mangled_name) - { - FindCodeSymbolInContext( - best_alternate_mangled_name, m_parser_vars->m_sym_ctx, eFunctionNameTypeAuto, sc_list); - sc_list_size = sc_list.GetSize(); - } - - if (sc_list_size == 0) - { - FindCodeSymbolInContext( - demangled, m_parser_vars->m_sym_ctx, eFunctionNameTypeFull, sc_list); - sc_list_size = sc_list.GetSize(); - } - } - } - } - } - - if (sc_list_size == 0) - { - // We occasionally get debug information in which a const function is reported - // as non-const, so the mangled name is wrong. This is a hack to compensate. - - if (!strncmp(name.GetCString(), "_ZN", 3) && - strncmp(name.GetCString(), "_ZNK", 4)) - { - std::string fixed_scratch("_ZNK"); - fixed_scratch.append(name.GetCString() + 3); - ConstString fixed_name(fixed_scratch.c_str()); - - if (log) - log->Printf("Failed to find symbols given non-const name %s; trying %s", name.GetCString(), fixed_name.GetCString()); - - FindCodeSymbolInContext( - fixed_name, m_parser_vars->m_sym_ctx, eFunctionNameTypeAuto, sc_list); - sc_list_size = sc_list.GetSize(); - } - } - - lldb::addr_t intern_callable_load_addr = LLDB_INVALID_ADDRESS; - - for (uint32_t i=0; i<sc_list_size; ++i) - { - SymbolContext sym_ctx; - sc_list.GetContextAtIndex(i, sym_ctx); - - - lldb::addr_t callable_load_addr = LLDB_INVALID_ADDRESS; - - if (sym_ctx.function) - { - const Address func_so_addr = sym_ctx.function->GetAddressRange().GetBaseAddress(); - if (func_so_addr.IsValid()) - { - callable_load_addr = func_so_addr.GetCallableLoadAddress(target, false); - } - } - else if (sym_ctx.symbol) - { - if (sym_ctx.symbol->IsExternal()) - callable_load_addr = sym_ctx.symbol->ResolveCallableAddress(*target); - else - { - if (intern_callable_load_addr == LLDB_INVALID_ADDRESS) - intern_callable_load_addr = sym_ctx.symbol->ResolveCallableAddress(*target); - } - } - - if (callable_load_addr != LLDB_INVALID_ADDRESS) - { - func_addr = callable_load_addr; - return true; - } - } - - // See if we found an internal symbol - if (intern_callable_load_addr != LLDB_INVALID_ADDRESS) - { - func_addr = intern_callable_load_addr; - return true; - } - - return false; -} - addr_t ClangExpressionDeclMap::GetSymbolAddress (Target &target, Process *process, @@ -2268,6 +2026,54 @@ ClangExpressionDeclMap::AddOneFunction (NameSearchContext &context, if (function) { Type *function_type = function->GetType(); + + const lldb::LanguageType comp_unit_language = function->GetCompileUnit()->GetLanguage(); + const bool extern_c = Language::LanguageIsC(comp_unit_language) || + (Language::LanguageIsObjC(comp_unit_language) && + !Language::LanguageIsCPlusPlus(comp_unit_language)); + + if (!extern_c) + { + TypeSystem *type_system = function->GetDeclContext().GetTypeSystem(); + if (ClangASTContext *src_ast = llvm::dyn_cast<ClangASTContext>(type_system)) + { + clang::DeclContext *src_decl_context = (clang::DeclContext*)function->GetDeclContext().GetOpaqueDeclContext(); + clang::FunctionDecl *src_function_decl = llvm::dyn_cast_or_null<clang::FunctionDecl>(src_decl_context); + + if (src_function_decl) + { + if (clang::FunctionDecl *copied_function_decl = llvm::dyn_cast_or_null<clang::FunctionDecl>(m_ast_importer_sp->CopyDecl(m_ast_context, src_ast->getASTContext(), src_function_decl))) + { + if (log) + { + ASTDumper ast_dumper((clang::Decl*)copied_function_decl); + + StreamString ss; + + function->DumpSymbolContext(&ss); + + log->Printf(" CEDM::FEVD[%u] Imported decl for function %s (description %s), returned %s", + current_id, + copied_function_decl->getName().str().c_str(), + ss.GetData(), + ast_dumper.GetCString()); + + } + + context.AddNamedDecl(copied_function_decl); + return; + } + else + { + if (log) + { + log->Printf (" Failed to import the function decl for '%s'", + src_function_decl->getName().str().c_str()); + } + } + } + } + } if (!function_type) { @@ -2290,7 +2096,7 @@ ClangExpressionDeclMap::AddOneFunction (NameSearchContext &context, CompilerType copied_function_type = GuardedCopyType(function_clang_type); if (copied_function_type) { - function_decl = context.AddFunDecl(copied_function_type); + function_decl = context.AddFunDecl(copied_function_type, extern_c); if (!function_decl) { |
