1 //===-- Function.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 "lldb/Symbol/Function.h" 10 #include "lldb/Core/Debugger.h" 11 #include "lldb/Core/Disassembler.h" 12 #include "lldb/Core/Module.h" 13 #include "lldb/Core/ModuleList.h" 14 #include "lldb/Core/Section.h" 15 #include "lldb/Host/Host.h" 16 #include "lldb/Symbol/CompileUnit.h" 17 #include "lldb/Symbol/CompilerType.h" 18 #include "lldb/Symbol/LineTable.h" 19 #include "lldb/Symbol/SymbolFile.h" 20 #include "lldb/Target/Language.h" 21 #include "lldb/Target/Target.h" 22 #include "lldb/Utility/LLDBLog.h" 23 #include "lldb/Utility/Log.h" 24 #include "llvm/Support/Casting.h" 25 26 using namespace lldb; 27 using namespace lldb_private; 28 29 // Basic function information is contained in the FunctionInfo class. It is 30 // designed to contain the name, linkage name, and declaration location. 31 FunctionInfo::FunctionInfo(const char *name, const Declaration *decl_ptr) 32 : m_name(name), m_declaration(decl_ptr) {} 33 34 FunctionInfo::FunctionInfo(ConstString name, const Declaration *decl_ptr) 35 : m_name(name), m_declaration(decl_ptr) {} 36 37 FunctionInfo::~FunctionInfo() = default; 38 39 void FunctionInfo::Dump(Stream *s, bool show_fullpaths) const { 40 if (m_name) 41 *s << ", name = \"" << m_name << "\""; 42 m_declaration.Dump(s, show_fullpaths); 43 } 44 45 int FunctionInfo::Compare(const FunctionInfo &a, const FunctionInfo &b) { 46 int result = ConstString::Compare(a.GetName(), b.GetName()); 47 if (result) 48 return result; 49 50 return Declaration::Compare(a.m_declaration, b.m_declaration); 51 } 52 53 Declaration &FunctionInfo::GetDeclaration() { return m_declaration; } 54 55 const Declaration &FunctionInfo::GetDeclaration() const { 56 return m_declaration; 57 } 58 59 ConstString FunctionInfo::GetName() const { return m_name; } 60 61 size_t FunctionInfo::MemorySize() const { 62 return m_name.MemorySize() + m_declaration.MemorySize(); 63 } 64 65 InlineFunctionInfo::InlineFunctionInfo(const char *name, 66 llvm::StringRef mangled, 67 const Declaration *decl_ptr, 68 const Declaration *call_decl_ptr) 69 : FunctionInfo(name, decl_ptr), m_mangled(mangled), 70 m_call_decl(call_decl_ptr) {} 71 72 InlineFunctionInfo::InlineFunctionInfo(ConstString name, 73 const Mangled &mangled, 74 const Declaration *decl_ptr, 75 const Declaration *call_decl_ptr) 76 : FunctionInfo(name, decl_ptr), m_mangled(mangled), 77 m_call_decl(call_decl_ptr) {} 78 79 InlineFunctionInfo::~InlineFunctionInfo() = default; 80 81 void InlineFunctionInfo::Dump(Stream *s, bool show_fullpaths) const { 82 FunctionInfo::Dump(s, show_fullpaths); 83 if (m_mangled) 84 m_mangled.Dump(s); 85 } 86 87 void InlineFunctionInfo::DumpStopContext(Stream *s) const { 88 // s->Indent("[inlined] "); 89 s->Indent(); 90 if (m_mangled) 91 s->PutCString(m_mangled.GetName().AsCString()); 92 else 93 s->PutCString(m_name.AsCString()); 94 } 95 96 ConstString InlineFunctionInfo::GetName() const { 97 if (m_mangled) 98 return m_mangled.GetName(); 99 return m_name; 100 } 101 102 ConstString InlineFunctionInfo::GetDisplayName() const { 103 if (m_mangled) 104 return m_mangled.GetDisplayDemangledName(); 105 return m_name; 106 } 107 108 Declaration &InlineFunctionInfo::GetCallSite() { return m_call_decl; } 109 110 const Declaration &InlineFunctionInfo::GetCallSite() const { 111 return m_call_decl; 112 } 113 114 Mangled &InlineFunctionInfo::GetMangled() { return m_mangled; } 115 116 const Mangled &InlineFunctionInfo::GetMangled() const { return m_mangled; } 117 118 size_t InlineFunctionInfo::MemorySize() const { 119 return FunctionInfo::MemorySize() + m_mangled.MemorySize(); 120 } 121 122 /// @name Call site related structures 123 /// @{ 124 125 lldb::addr_t CallEdge::GetLoadAddress(lldb::addr_t unresolved_pc, 126 Function &caller, Target &target) { 127 Log *log = GetLog(LLDBLog::Step); 128 129 const Address &caller_start_addr = caller.GetAddressRange().GetBaseAddress(); 130 131 ModuleSP caller_module_sp = caller_start_addr.GetModule(); 132 if (!caller_module_sp) { 133 LLDB_LOG(log, "GetLoadAddress: cannot get Module for caller"); 134 return LLDB_INVALID_ADDRESS; 135 } 136 137 SectionList *section_list = caller_module_sp->GetSectionList(); 138 if (!section_list) { 139 LLDB_LOG(log, "GetLoadAddress: cannot get SectionList for Module"); 140 return LLDB_INVALID_ADDRESS; 141 } 142 143 Address the_addr = Address(unresolved_pc, section_list); 144 lldb::addr_t load_addr = the_addr.GetLoadAddress(&target); 145 return load_addr; 146 } 147 148 lldb::addr_t CallEdge::GetReturnPCAddress(Function &caller, 149 Target &target) const { 150 return GetLoadAddress(GetUnresolvedReturnPCAddress(), caller, target); 151 } 152 153 void DirectCallEdge::ParseSymbolFileAndResolve(ModuleList &images) { 154 if (resolved) 155 return; 156 157 Log *log = GetLog(LLDBLog::Step); 158 LLDB_LOG(log, "DirectCallEdge: Lazily parsing the call graph for {0}", 159 lazy_callee.symbol_name); 160 161 auto resolve_lazy_callee = [&]() -> Function * { 162 ConstString callee_name{lazy_callee.symbol_name}; 163 SymbolContextList sc_list; 164 images.FindFunctionSymbols(callee_name, eFunctionNameTypeAuto, sc_list); 165 size_t num_matches = sc_list.GetSize(); 166 if (num_matches == 0 || !sc_list[0].symbol) { 167 LLDB_LOG(log, 168 "DirectCallEdge: Found no symbols for {0}, cannot resolve it", 169 callee_name); 170 return nullptr; 171 } 172 Address callee_addr = sc_list[0].symbol->GetAddress(); 173 if (!callee_addr.IsValid()) { 174 LLDB_LOG(log, "DirectCallEdge: Invalid symbol address"); 175 return nullptr; 176 } 177 Function *f = callee_addr.CalculateSymbolContextFunction(); 178 if (!f) { 179 LLDB_LOG(log, "DirectCallEdge: Could not find complete function"); 180 return nullptr; 181 } 182 return f; 183 }; 184 lazy_callee.def = resolve_lazy_callee(); 185 resolved = true; 186 } 187 188 Function *DirectCallEdge::GetCallee(ModuleList &images, ExecutionContext &) { 189 ParseSymbolFileAndResolve(images); 190 assert(resolved && "Did not resolve lazy callee"); 191 return lazy_callee.def; 192 } 193 194 Function *IndirectCallEdge::GetCallee(ModuleList &images, 195 ExecutionContext &exe_ctx) { 196 Log *log = GetLog(LLDBLog::Step); 197 Status error; 198 Value callee_addr_val; 199 if (!call_target.Evaluate( 200 &exe_ctx, exe_ctx.GetRegisterContext(), LLDB_INVALID_ADDRESS, 201 /*initial_value_ptr=*/nullptr, 202 /*object_address_ptr=*/nullptr, callee_addr_val, &error)) { 203 LLDB_LOGF(log, "IndirectCallEdge: Could not evaluate expression: %s", 204 error.AsCString()); 205 return nullptr; 206 } 207 208 addr_t raw_addr = callee_addr_val.GetScalar().ULongLong(LLDB_INVALID_ADDRESS); 209 if (raw_addr == LLDB_INVALID_ADDRESS) { 210 LLDB_LOG(log, "IndirectCallEdge: Could not extract address from scalar"); 211 return nullptr; 212 } 213 214 Address callee_addr; 215 if (!exe_ctx.GetTargetPtr()->ResolveLoadAddress(raw_addr, callee_addr)) { 216 LLDB_LOG(log, "IndirectCallEdge: Could not resolve callee's load address"); 217 return nullptr; 218 } 219 220 Function *f = callee_addr.CalculateSymbolContextFunction(); 221 if (!f) { 222 LLDB_LOG(log, "IndirectCallEdge: Could not find complete function"); 223 return nullptr; 224 } 225 226 return f; 227 } 228 229 /// @} 230 231 // 232 Function::Function(CompileUnit *comp_unit, lldb::user_id_t func_uid, 233 lldb::user_id_t type_uid, const Mangled &mangled, Type *type, 234 const AddressRange &range) 235 : UserID(func_uid), m_comp_unit(comp_unit), m_type_uid(type_uid), 236 m_type(type), m_mangled(mangled), m_block(func_uid), m_range(range), 237 m_frame_base(), m_flags(), m_prologue_byte_size(0) { 238 m_block.SetParentScope(this); 239 assert(comp_unit != nullptr); 240 } 241 242 Function::~Function() = default; 243 244 void Function::GetStartLineSourceInfo(FileSpec &source_file, 245 uint32_t &line_no) { 246 line_no = 0; 247 source_file.Clear(); 248 249 if (m_comp_unit == nullptr) 250 return; 251 252 // Initialize m_type if it hasn't been initialized already 253 GetType(); 254 255 if (m_type != nullptr && m_type->GetDeclaration().GetLine() != 0) { 256 source_file = m_type->GetDeclaration().GetFile(); 257 line_no = m_type->GetDeclaration().GetLine(); 258 } else { 259 LineTable *line_table = m_comp_unit->GetLineTable(); 260 if (line_table == nullptr) 261 return; 262 263 LineEntry line_entry; 264 if (line_table->FindLineEntryByAddress(GetAddressRange().GetBaseAddress(), 265 line_entry, nullptr)) { 266 line_no = line_entry.line; 267 source_file = line_entry.file; 268 } 269 } 270 } 271 272 void Function::GetEndLineSourceInfo(FileSpec &source_file, uint32_t &line_no) { 273 line_no = 0; 274 source_file.Clear(); 275 276 // The -1 is kind of cheesy, but I want to get the last line entry for the 277 // given function, not the first entry of the next. 278 Address scratch_addr(GetAddressRange().GetBaseAddress()); 279 scratch_addr.SetOffset(scratch_addr.GetOffset() + 280 GetAddressRange().GetByteSize() - 1); 281 282 LineTable *line_table = m_comp_unit->GetLineTable(); 283 if (line_table == nullptr) 284 return; 285 286 LineEntry line_entry; 287 if (line_table->FindLineEntryByAddress(scratch_addr, line_entry, nullptr)) { 288 line_no = line_entry.line; 289 source_file = line_entry.file; 290 } 291 } 292 293 llvm::ArrayRef<std::unique_ptr<CallEdge>> Function::GetCallEdges() { 294 std::lock_guard<std::mutex> guard(m_call_edges_lock); 295 296 if (m_call_edges_resolved) 297 return m_call_edges; 298 299 Log *log = GetLog(LLDBLog::Step); 300 LLDB_LOG(log, "GetCallEdges: Attempting to parse call site info for {0}", 301 GetDisplayName()); 302 303 m_call_edges_resolved = true; 304 305 // Find the SymbolFile which provided this function's definition. 306 Block &block = GetBlock(/*can_create*/true); 307 SymbolFile *sym_file = block.GetSymbolFile(); 308 if (!sym_file) 309 return llvm::None; 310 311 // Lazily read call site information from the SymbolFile. 312 m_call_edges = sym_file->ParseCallEdgesInFunction(GetID()); 313 314 // Sort the call edges to speed up return_pc lookups. 315 llvm::sort(m_call_edges, [](const std::unique_ptr<CallEdge> &LHS, 316 const std::unique_ptr<CallEdge> &RHS) { 317 return LHS->GetSortKey() < RHS->GetSortKey(); 318 }); 319 320 return m_call_edges; 321 } 322 323 llvm::ArrayRef<std::unique_ptr<CallEdge>> Function::GetTailCallingEdges() { 324 // Tail calling edges are sorted at the end of the list. Find them by dropping 325 // all non-tail-calls. 326 return GetCallEdges().drop_until( 327 [](const std::unique_ptr<CallEdge> &edge) { return edge->IsTailCall(); }); 328 } 329 330 CallEdge *Function::GetCallEdgeForReturnAddress(addr_t return_pc, 331 Target &target) { 332 auto edges = GetCallEdges(); 333 auto edge_it = 334 llvm::partition_point(edges, [&](const std::unique_ptr<CallEdge> &edge) { 335 return std::make_pair(edge->IsTailCall(), 336 edge->GetReturnPCAddress(*this, target)) < 337 std::make_pair(false, return_pc); 338 }); 339 if (edge_it == edges.end() || 340 edge_it->get()->GetReturnPCAddress(*this, target) != return_pc) 341 return nullptr; 342 return edge_it->get(); 343 } 344 345 Block &Function::GetBlock(bool can_create) { 346 if (!m_block.BlockInfoHasBeenParsed() && can_create) { 347 ModuleSP module_sp = CalculateSymbolContextModule(); 348 if (module_sp) { 349 module_sp->GetSymbolFile()->ParseBlocksRecursive(*this); 350 } else { 351 Debugger::ReportError(llvm::formatv( 352 "unable to find module shared pointer for function '{0}' in {1}", 353 GetName().GetCString(), m_comp_unit->GetPrimaryFile().GetPath())); 354 } 355 m_block.SetBlockInfoHasBeenParsed(true, true); 356 } 357 return m_block; 358 } 359 360 CompileUnit *Function::GetCompileUnit() { return m_comp_unit; } 361 362 const CompileUnit *Function::GetCompileUnit() const { return m_comp_unit; } 363 364 void Function::GetDescription(Stream *s, lldb::DescriptionLevel level, 365 Target *target) { 366 ConstString name = GetName(); 367 ConstString mangled = m_mangled.GetMangledName(); 368 369 *s << "id = " << (const UserID &)*this; 370 if (name) 371 s->AsRawOstream() << ", name = \"" << name << '"'; 372 if (mangled) 373 s->AsRawOstream() << ", mangled = \"" << mangled << '"'; 374 *s << ", range = "; 375 Address::DumpStyle fallback_style; 376 if (level == eDescriptionLevelVerbose) 377 fallback_style = Address::DumpStyleModuleWithFileAddress; 378 else 379 fallback_style = Address::DumpStyleFileAddress; 380 GetAddressRange().Dump(s, target, Address::DumpStyleLoadAddress, 381 fallback_style); 382 } 383 384 void Function::Dump(Stream *s, bool show_context) const { 385 s->Printf("%p: ", static_cast<const void *>(this)); 386 s->Indent(); 387 *s << "Function" << static_cast<const UserID &>(*this); 388 389 m_mangled.Dump(s); 390 391 if (m_type) 392 s->Printf(", type = %p", static_cast<void *>(m_type)); 393 else if (m_type_uid != LLDB_INVALID_UID) 394 s->Printf(", type_uid = 0x%8.8" PRIx64, m_type_uid); 395 396 s->EOL(); 397 // Dump the root object 398 if (m_block.BlockInfoHasBeenParsed()) 399 m_block.Dump(s, m_range.GetBaseAddress().GetFileAddress(), INT_MAX, 400 show_context); 401 } 402 403 void Function::CalculateSymbolContext(SymbolContext *sc) { 404 sc->function = this; 405 m_comp_unit->CalculateSymbolContext(sc); 406 } 407 408 ModuleSP Function::CalculateSymbolContextModule() { 409 SectionSP section_sp(m_range.GetBaseAddress().GetSection()); 410 if (section_sp) 411 return section_sp->GetModule(); 412 413 return this->GetCompileUnit()->GetModule(); 414 } 415 416 CompileUnit *Function::CalculateSymbolContextCompileUnit() { 417 return this->GetCompileUnit(); 418 } 419 420 Function *Function::CalculateSymbolContextFunction() { return this; } 421 422 lldb::DisassemblerSP Function::GetInstructions(const ExecutionContext &exe_ctx, 423 const char *flavor, 424 bool prefer_file_cache) { 425 ModuleSP module_sp(GetAddressRange().GetBaseAddress().GetModule()); 426 if (module_sp && exe_ctx.HasTargetScope()) { 427 return Disassembler::DisassembleRange(module_sp->GetArchitecture(), nullptr, 428 flavor, exe_ctx.GetTargetRef(), 429 GetAddressRange(), !prefer_file_cache); 430 } 431 return lldb::DisassemblerSP(); 432 } 433 434 bool Function::GetDisassembly(const ExecutionContext &exe_ctx, 435 const char *flavor, Stream &strm, 436 bool prefer_file_cache) { 437 lldb::DisassemblerSP disassembler_sp = 438 GetInstructions(exe_ctx, flavor, prefer_file_cache); 439 if (disassembler_sp) { 440 const bool show_address = true; 441 const bool show_bytes = false; 442 const bool show_control_flow_kind = false; 443 disassembler_sp->GetInstructionList().Dump( 444 &strm, show_address, show_bytes, show_control_flow_kind, &exe_ctx); 445 return true; 446 } 447 return false; 448 } 449 450 // Symbol * 451 // Function::CalculateSymbolContextSymbol () 452 //{ 453 // return // TODO: find the symbol for the function??? 454 //} 455 456 void Function::DumpSymbolContext(Stream *s) { 457 m_comp_unit->DumpSymbolContext(s); 458 s->Printf(", Function{0x%8.8" PRIx64 "}", GetID()); 459 } 460 461 size_t Function::MemorySize() const { 462 size_t mem_size = sizeof(Function) + m_block.MemorySize(); 463 return mem_size; 464 } 465 466 bool Function::GetIsOptimized() { 467 bool result = false; 468 469 // Currently optimization is only indicted by the vendor extension 470 // DW_AT_APPLE_optimized which is set on a compile unit level. 471 if (m_comp_unit) { 472 result = m_comp_unit->GetIsOptimized(); 473 } 474 return result; 475 } 476 477 bool Function::IsTopLevelFunction() { 478 bool result = false; 479 480 if (Language *language = Language::FindPlugin(GetLanguage())) 481 result = language->IsTopLevelFunction(*this); 482 483 return result; 484 } 485 486 ConstString Function::GetDisplayName() const { 487 return m_mangled.GetDisplayDemangledName(); 488 } 489 490 CompilerDeclContext Function::GetDeclContext() { 491 ModuleSP module_sp = CalculateSymbolContextModule(); 492 493 if (module_sp) { 494 if (SymbolFile *sym_file = module_sp->GetSymbolFile()) 495 return sym_file->GetDeclContextForUID(GetID()); 496 } 497 return CompilerDeclContext(); 498 } 499 500 Type *Function::GetType() { 501 if (m_type == nullptr) { 502 SymbolContext sc; 503 504 CalculateSymbolContext(&sc); 505 506 if (!sc.module_sp) 507 return nullptr; 508 509 SymbolFile *sym_file = sc.module_sp->GetSymbolFile(); 510 511 if (sym_file == nullptr) 512 return nullptr; 513 514 m_type = sym_file->ResolveTypeUID(m_type_uid); 515 } 516 return m_type; 517 } 518 519 const Type *Function::GetType() const { return m_type; } 520 521 CompilerType Function::GetCompilerType() { 522 Type *function_type = GetType(); 523 if (function_type) 524 return function_type->GetFullCompilerType(); 525 return CompilerType(); 526 } 527 528 uint32_t Function::GetPrologueByteSize() { 529 if (m_prologue_byte_size == 0 && 530 m_flags.IsClear(flagsCalculatedPrologueSize)) { 531 m_flags.Set(flagsCalculatedPrologueSize); 532 LineTable *line_table = m_comp_unit->GetLineTable(); 533 uint32_t prologue_end_line_idx = 0; 534 535 if (line_table) { 536 LineEntry first_line_entry; 537 uint32_t first_line_entry_idx = UINT32_MAX; 538 if (line_table->FindLineEntryByAddress(GetAddressRange().GetBaseAddress(), 539 first_line_entry, 540 &first_line_entry_idx)) { 541 // Make sure the first line entry isn't already the end of the prologue 542 addr_t prologue_end_file_addr = LLDB_INVALID_ADDRESS; 543 addr_t line_zero_end_file_addr = LLDB_INVALID_ADDRESS; 544 545 if (first_line_entry.is_prologue_end) { 546 prologue_end_file_addr = 547 first_line_entry.range.GetBaseAddress().GetFileAddress(); 548 prologue_end_line_idx = first_line_entry_idx; 549 } else { 550 // Check the first few instructions and look for one that has 551 // is_prologue_end set to true. 552 const uint32_t last_line_entry_idx = first_line_entry_idx + 6; 553 for (uint32_t idx = first_line_entry_idx + 1; 554 idx < last_line_entry_idx; ++idx) { 555 LineEntry line_entry; 556 if (line_table->GetLineEntryAtIndex(idx, line_entry)) { 557 if (line_entry.is_prologue_end) { 558 prologue_end_file_addr = 559 line_entry.range.GetBaseAddress().GetFileAddress(); 560 prologue_end_line_idx = idx; 561 break; 562 } 563 } 564 } 565 } 566 567 // If we didn't find the end of the prologue in the line tables, then 568 // just use the end address of the first line table entry 569 if (prologue_end_file_addr == LLDB_INVALID_ADDRESS) { 570 // Check the first few instructions and look for one that has a line 571 // number that's different than the first entry. 572 uint32_t last_line_entry_idx = first_line_entry_idx + 6; 573 for (uint32_t idx = first_line_entry_idx + 1; 574 idx < last_line_entry_idx; ++idx) { 575 LineEntry line_entry; 576 if (line_table->GetLineEntryAtIndex(idx, line_entry)) { 577 if (line_entry.line != first_line_entry.line) { 578 prologue_end_file_addr = 579 line_entry.range.GetBaseAddress().GetFileAddress(); 580 prologue_end_line_idx = idx; 581 break; 582 } 583 } 584 } 585 586 if (prologue_end_file_addr == LLDB_INVALID_ADDRESS) { 587 prologue_end_file_addr = 588 first_line_entry.range.GetBaseAddress().GetFileAddress() + 589 first_line_entry.range.GetByteSize(); 590 prologue_end_line_idx = first_line_entry_idx; 591 } 592 } 593 594 const addr_t func_start_file_addr = 595 m_range.GetBaseAddress().GetFileAddress(); 596 const addr_t func_end_file_addr = 597 func_start_file_addr + m_range.GetByteSize(); 598 599 // Now calculate the offset to pass the subsequent line 0 entries. 600 uint32_t first_non_zero_line = prologue_end_line_idx; 601 while (true) { 602 LineEntry line_entry; 603 if (line_table->GetLineEntryAtIndex(first_non_zero_line, 604 line_entry)) { 605 if (line_entry.line != 0) 606 break; 607 } 608 if (line_entry.range.GetBaseAddress().GetFileAddress() >= 609 func_end_file_addr) 610 break; 611 612 first_non_zero_line++; 613 } 614 615 if (first_non_zero_line > prologue_end_line_idx) { 616 LineEntry first_non_zero_entry; 617 if (line_table->GetLineEntryAtIndex(first_non_zero_line, 618 first_non_zero_entry)) { 619 line_zero_end_file_addr = 620 first_non_zero_entry.range.GetBaseAddress().GetFileAddress(); 621 } 622 } 623 624 // Verify that this prologue end file address in the function's address 625 // range just to be sure 626 if (func_start_file_addr < prologue_end_file_addr && 627 prologue_end_file_addr < func_end_file_addr) { 628 m_prologue_byte_size = prologue_end_file_addr - func_start_file_addr; 629 } 630 631 if (prologue_end_file_addr < line_zero_end_file_addr && 632 line_zero_end_file_addr < func_end_file_addr) { 633 m_prologue_byte_size += 634 line_zero_end_file_addr - prologue_end_file_addr; 635 } 636 } 637 } 638 } 639 640 return m_prologue_byte_size; 641 } 642 643 lldb::LanguageType Function::GetLanguage() const { 644 lldb::LanguageType lang = m_mangled.GuessLanguage(); 645 if (lang != lldb::eLanguageTypeUnknown) 646 return lang; 647 648 if (m_comp_unit) 649 return m_comp_unit->GetLanguage(); 650 651 return lldb::eLanguageTypeUnknown; 652 } 653 654 ConstString Function::GetName() const { 655 return m_mangled.GetName(); 656 } 657 658 ConstString Function::GetNameNoArguments() const { 659 return m_mangled.GetName(Mangled::ePreferDemangledWithoutArguments); 660 } 661