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