Import LLVM 10.0.0 release including clang, lld and lldb.

ok hackroom
tested by plenty

1 files changed, 647 insertions, 0 deletions

diff --git a/gnu/llvm/lldb/source/Symbol/Function.cpp b/gnu/llvm/lldb/source/Symbol/Function.cpp
new file mode 100644
index 00000000000..e92585ccfed
--- /dev/null
+++ b/gnu/llvm/lldb/source/Symbol/Function.cpp
@@ -0,0 +1,647 @@
+//===-- Function.cpp --------------------------------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "lldb/Symbol/Function.h"
+#include "lldb/Core/Disassembler.h"
+#include "lldb/Core/Module.h"
+#include "lldb/Core/ModuleList.h"
+#include "lldb/Core/Section.h"
+#include "lldb/Host/Host.h"
+#include "lldb/Symbol/CompileUnit.h"
+#include "lldb/Symbol/CompilerType.h"
+#include "lldb/Symbol/LineTable.h"
+#include "lldb/Symbol/SymbolFile.h"
+#include "lldb/Target/Language.h"
+#include "lldb/Target/Target.h"
+#include "lldb/Utility/Log.h"
+#include "llvm/Support/Casting.h"
+
+using namespace lldb;
+using namespace lldb_private;
+
+// Basic function information is contained in the FunctionInfo class. It is
+// designed to contain the name, linkage name, and declaration location.
+FunctionInfo::FunctionInfo(const char *name, const Declaration *decl_ptr)
+    : m_name(name), m_declaration(decl_ptr) {}
+
+FunctionInfo::FunctionInfo(ConstString name, const Declaration *decl_ptr)
+    : m_name(name), m_declaration(decl_ptr) {}
+
+FunctionInfo::~FunctionInfo() {}
+
+void FunctionInfo::Dump(Stream *s, bool show_fullpaths) const {
+  if (m_name)
+    *s << ", name = \"" << m_name << "\"";
+  m_declaration.Dump(s, show_fullpaths);
+}
+
+int FunctionInfo::Compare(const FunctionInfo &a, const FunctionInfo &b) {
+  int result = ConstString::Compare(a.GetName(), b.GetName());
+  if (result)
+    return result;
+
+  return Declaration::Compare(a.m_declaration, b.m_declaration);
+}
+
+Declaration &FunctionInfo::GetDeclaration() { return m_declaration; }
+
+const Declaration &FunctionInfo::GetDeclaration() const {
+  return m_declaration;
+}
+
+ConstString FunctionInfo::GetName() const { return m_name; }
+
+size_t FunctionInfo::MemorySize() const {
+  return m_name.MemorySize() + m_declaration.MemorySize();
+}
+
+InlineFunctionInfo::InlineFunctionInfo(const char *name,
+                                       llvm::StringRef mangled,
+                                       const Declaration *decl_ptr,
+                                       const Declaration *call_decl_ptr)
+    : FunctionInfo(name, decl_ptr), m_mangled(mangled),
+      m_call_decl(call_decl_ptr) {}
+
+InlineFunctionInfo::InlineFunctionInfo(ConstString name,
+                                       const Mangled &mangled,
+                                       const Declaration *decl_ptr,
+                                       const Declaration *call_decl_ptr)
+    : FunctionInfo(name, decl_ptr), m_mangled(mangled),
+      m_call_decl(call_decl_ptr) {}
+
+InlineFunctionInfo::~InlineFunctionInfo() {}
+
+void InlineFunctionInfo::Dump(Stream *s, bool show_fullpaths) const {
+  FunctionInfo::Dump(s, show_fullpaths);
+  if (m_mangled)
+    m_mangled.Dump(s);
+}
+
+void InlineFunctionInfo::DumpStopContext(Stream *s,
+                                         LanguageType language) const {
+  //    s->Indent("[inlined] ");
+  s->Indent();
+  if (m_mangled)
+    s->PutCString(m_mangled.GetName(language).AsCString());
+  else
+    s->PutCString(m_name.AsCString());
+}
+
+ConstString InlineFunctionInfo::GetName(LanguageType language) const {
+  if (m_mangled)
+    return m_mangled.GetName(language);
+  return m_name;
+}
+
+ConstString InlineFunctionInfo::GetDisplayName(LanguageType language) const {
+  if (m_mangled)
+    return m_mangled.GetDisplayDemangledName(language);
+  return m_name;
+}
+
+Declaration &InlineFunctionInfo::GetCallSite() { return m_call_decl; }
+
+const Declaration &InlineFunctionInfo::GetCallSite() const {
+  return m_call_decl;
+}
+
+Mangled &InlineFunctionInfo::GetMangled() { return m_mangled; }
+
+const Mangled &InlineFunctionInfo::GetMangled() const { return m_mangled; }
+
+size_t InlineFunctionInfo::MemorySize() const {
+  return FunctionInfo::MemorySize() + m_mangled.MemorySize();
+}
+
+/// @name Call site related structures
+/// @{
+
+lldb::addr_t CallEdge::GetReturnPCAddress(Function &caller,
+                                          Target &target) const {
+  const Address &base = caller.GetAddressRange().GetBaseAddress();
+  return base.GetLoadAddress(&target) + return_pc;
+}
+
+void DirectCallEdge::ParseSymbolFileAndResolve(ModuleList &images) {
+  if (resolved)
+    return;
+
+  Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_STEP));
+  LLDB_LOG(log, "DirectCallEdge: Lazily parsing the call graph for {0}",
+           lazy_callee.symbol_name);
+
+  auto resolve_lazy_callee = [&]() -> Function * {
+    ConstString callee_name{lazy_callee.symbol_name};
+    SymbolContextList sc_list;
+    images.FindFunctionSymbols(callee_name, eFunctionNameTypeAuto, sc_list);
+    size_t num_matches = sc_list.GetSize();
+    if (num_matches == 0 || !sc_list[0].symbol) {
+      LLDB_LOG(log,
+               "DirectCallEdge: Found no symbols for {0}, cannot resolve it",
+               callee_name);
+      return nullptr;
+    }
+    Address callee_addr = sc_list[0].symbol->GetAddress();
+    if (!callee_addr.IsValid()) {
+      LLDB_LOG(log, "DirectCallEdge: Invalid symbol address");
+      return nullptr;
+    }
+    Function *f = callee_addr.CalculateSymbolContextFunction();
+    if (!f) {
+      LLDB_LOG(log, "DirectCallEdge: Could not find complete function");
+      return nullptr;
+    }
+    return f;
+  };
+  lazy_callee.def = resolve_lazy_callee();
+  resolved = true;
+}
+
+Function *DirectCallEdge::GetCallee(ModuleList &images, ExecutionContext &) {
+  ParseSymbolFileAndResolve(images);
+  assert(resolved && "Did not resolve lazy callee");
+  return lazy_callee.def;
+}
+
+Function *IndirectCallEdge::GetCallee(ModuleList &images,
+                                      ExecutionContext &exe_ctx) {
+  Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_STEP));
+  Status error;
+  Value callee_addr_val;
+  if (!call_target.Evaluate(&exe_ctx, exe_ctx.GetRegisterContext(),
+                            /*loclist_base_addr=*/LLDB_INVALID_ADDRESS,
+                            /*initial_value_ptr=*/nullptr,
+                            /*object_address_ptr=*/nullptr, callee_addr_val,
+                            &error)) {
+    LLDB_LOGF(log, "IndirectCallEdge: Could not evaluate expression: %s",
+              error.AsCString());
+    return nullptr;
+  }
+
+  addr_t raw_addr = callee_addr_val.GetScalar().ULongLong(LLDB_INVALID_ADDRESS);
+  if (raw_addr == LLDB_INVALID_ADDRESS) {
+    LLDB_LOG(log, "IndirectCallEdge: Could not extract address from scalar");
+    return nullptr;
+  }
+
+  Address callee_addr;
+  if (!exe_ctx.GetTargetPtr()->ResolveLoadAddress(raw_addr, callee_addr)) {
+    LLDB_LOG(log, "IndirectCallEdge: Could not resolve callee's load address");
+    return nullptr;
+  }
+
+  Function *f = callee_addr.CalculateSymbolContextFunction();
+  if (!f) {
+    LLDB_LOG(log, "IndirectCallEdge: Could not find complete function");
+    return nullptr;
+  }
+
+  return f;
+}
+
+/// @}
+
+//
+Function::Function(CompileUnit *comp_unit, lldb::user_id_t func_uid,
+                   lldb::user_id_t type_uid, const Mangled &mangled, Type *type,
+                   const AddressRange &range)
+    : UserID(func_uid), m_comp_unit(comp_unit), m_type_uid(type_uid),
+      m_type(type), m_mangled(mangled), m_block(func_uid), m_range(range),
+      m_frame_base(), m_flags(), m_prologue_byte_size(0) {
+  m_block.SetParentScope(this);
+  assert(comp_unit != nullptr);
+}
+
+Function::~Function() {}
+
+void Function::GetStartLineSourceInfo(FileSpec &source_file,
+                                      uint32_t &line_no) {
+  line_no = 0;
+  source_file.Clear();
+
+  if (m_comp_unit == nullptr)
+    return;
+
+  // Initialize m_type if it hasn't been initialized already
+  GetType();
+
+  if (m_type != nullptr && m_type->GetDeclaration().GetLine() != 0) {
+    source_file = m_type->GetDeclaration().GetFile();
+    line_no = m_type->GetDeclaration().GetLine();
+  } else {
+    LineTable *line_table = m_comp_unit->GetLineTable();
+    if (line_table == nullptr)
+      return;
+
+    LineEntry line_entry;
+    if (line_table->FindLineEntryByAddress(GetAddressRange().GetBaseAddress(),
+                                           line_entry, nullptr)) {
+      line_no = line_entry.line;
+      source_file = line_entry.file;
+    }
+  }
+}
+
+void Function::GetEndLineSourceInfo(FileSpec &source_file, uint32_t &line_no) {
+  line_no = 0;
+  source_file.Clear();
+
+  // The -1 is kind of cheesy, but I want to get the last line entry for the
+  // given function, not the first entry of the next.
+  Address scratch_addr(GetAddressRange().GetBaseAddress());
+  scratch_addr.SetOffset(scratch_addr.GetOffset() +
+                         GetAddressRange().GetByteSize() - 1);
+
+  LineTable *line_table = m_comp_unit->GetLineTable();
+  if (line_table == nullptr)
+    return;
+
+  LineEntry line_entry;
+  if (line_table->FindLineEntryByAddress(scratch_addr, line_entry, nullptr)) {
+    line_no = line_entry.line;
+    source_file = line_entry.file;
+  }
+}
+
+llvm::ArrayRef<std::unique_ptr<CallEdge>> Function::GetCallEdges() {
+  if (m_call_edges_resolved)
+    return m_call_edges;
+
+  Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_STEP));
+  LLDB_LOG(log, "GetCallEdges: Attempting to parse call site info for {0}",
+           GetDisplayName());
+
+  m_call_edges_resolved = true;
+
+  // Find the SymbolFile which provided this function's definition.
+  Block &block = GetBlock(/*can_create*/true);
+  SymbolFile *sym_file = block.GetSymbolFile();
+  if (!sym_file)
+    return llvm::None;
+
+  // Lazily read call site information from the SymbolFile.
+  m_call_edges = sym_file->ParseCallEdgesInFunction(GetID());
+
+  // Sort the call edges to speed up return_pc lookups.
+  llvm::sort(m_call_edges.begin(), m_call_edges.end(),
+             [](const std::unique_ptr<CallEdge> &LHS,
+                const std::unique_ptr<CallEdge> &RHS) {
+               return LHS->GetUnresolvedReturnPCAddress() <
+                      RHS->GetUnresolvedReturnPCAddress();
+             });
+
+  return m_call_edges;
+}
+
+llvm::ArrayRef<std::unique_ptr<CallEdge>> Function::GetTailCallingEdges() {
+  // Call edges are sorted by return PC, and tail calling edges have invalid
+  // return PCs. Find them at the end of the list.
+  return GetCallEdges().drop_until([](const std::unique_ptr<CallEdge> &edge) {
+    return edge->GetUnresolvedReturnPCAddress() == LLDB_INVALID_ADDRESS;
+  });
+}
+
+CallEdge *Function::GetCallEdgeForReturnAddress(addr_t return_pc,
+                                                Target &target) {
+  auto edges = GetCallEdges();
+  auto edge_it =
+      std::lower_bound(edges.begin(), edges.end(), return_pc,
+                       [&](const std::unique_ptr<CallEdge> &edge, addr_t pc) {
+                         return edge->GetReturnPCAddress(*this, target) < pc;
+                       });
+  if (edge_it == edges.end() ||
+      edge_it->get()->GetReturnPCAddress(*this, target) != return_pc)
+    return nullptr;
+  return &const_cast<CallEdge &>(*edge_it->get());
+}
+
+Block &Function::GetBlock(bool can_create) {
+  if (!m_block.BlockInfoHasBeenParsed() && can_create) {
+    ModuleSP module_sp = CalculateSymbolContextModule();
+    if (module_sp) {
+      module_sp->GetSymbolFile()->ParseBlocksRecursive(*this);
+    } else {
+      Host::SystemLog(Host::eSystemLogError,
+                      "error: unable to find module "
+                      "shared pointer for function '%s' "
+                      "in %s\n",
+                      GetName().GetCString(),
+                      m_comp_unit->GetPrimaryFile().GetPath().c_str());
+    }
+    m_block.SetBlockInfoHasBeenParsed(true, true);
+  }
+  return m_block;
+}
+
+CompileUnit *Function::GetCompileUnit() { return m_comp_unit; }
+
+const CompileUnit *Function::GetCompileUnit() const { return m_comp_unit; }
+
+void Function::GetDescription(Stream *s, lldb::DescriptionLevel level,
+                              Target *target) {
+  ConstString name = GetName();
+  ConstString mangled = m_mangled.GetMangledName();
+
+  *s << "id = " << (const UserID &)*this;
+  if (name)
+    *s << ", name = \"" << name.GetCString() << '"';
+  if (mangled)
+    *s << ", mangled = \"" << mangled.GetCString() << '"';
+  *s << ", range = ";
+  Address::DumpStyle fallback_style;
+  if (level == eDescriptionLevelVerbose)
+    fallback_style = Address::DumpStyleModuleWithFileAddress;
+  else
+    fallback_style = Address::DumpStyleFileAddress;
+  GetAddressRange().Dump(s, target, Address::DumpStyleLoadAddress,
+                         fallback_style);
+}
+
+void Function::Dump(Stream *s, bool show_context) const {
+  s->Printf("%p: ", static_cast<const void *>(this));
+  s->Indent();
+  *s << "Function" << static_cast<const UserID &>(*this);
+
+  m_mangled.Dump(s);
+
+  if (m_type)
+    s->Printf(", type = %p", static_cast<void *>(m_type));
+  else if (m_type_uid != LLDB_INVALID_UID)
+    s->Printf(", type_uid = 0x%8.8" PRIx64, m_type_uid);
+
+  s->EOL();
+  // Dump the root object
+  if (m_block.BlockInfoHasBeenParsed())
+    m_block.Dump(s, m_range.GetBaseAddress().GetFileAddress(), INT_MAX,
+                 show_context);
+}
+
+void Function::CalculateSymbolContext(SymbolContext *sc) {
+  sc->function = this;
+  m_comp_unit->CalculateSymbolContext(sc);
+}
+
+ModuleSP Function::CalculateSymbolContextModule() {
+  SectionSP section_sp(m_range.GetBaseAddress().GetSection());
+  if (section_sp)
+    return section_sp->GetModule();
+
+  return this->GetCompileUnit()->GetModule();
+}
+
+CompileUnit *Function::CalculateSymbolContextCompileUnit() {
+  return this->GetCompileUnit();
+}
+
+Function *Function::CalculateSymbolContextFunction() { return this; }
+
+lldb::DisassemblerSP Function::GetInstructions(const ExecutionContext &exe_ctx,
+                                               const char *flavor,
+                                               bool prefer_file_cache) {
+  ModuleSP module_sp(GetAddressRange().GetBaseAddress().GetModule());
+  if (module_sp) {
+    const bool prefer_file_cache = false;
+    return Disassembler::DisassembleRange(module_sp->GetArchitecture(), nullptr,
+                                          flavor, exe_ctx, GetAddressRange(),
+                                          prefer_file_cache);
+  }
+  return lldb::DisassemblerSP();
+}
+
+bool Function::GetDisassembly(const ExecutionContext &exe_ctx,
+                              const char *flavor, bool prefer_file_cache,
+                              Stream &strm) {
+  lldb::DisassemblerSP disassembler_sp =
+      GetInstructions(exe_ctx, flavor, prefer_file_cache);
+  if (disassembler_sp) {
+    const bool show_address = true;
+    const bool show_bytes = false;
+    disassembler_sp->GetInstructionList().Dump(&strm, show_address, show_bytes,
+                                               &exe_ctx);
+    return true;
+  }
+  return false;
+}
+
+// Symbol *
+// Function::CalculateSymbolContextSymbol ()
+//{
+//    return // TODO: find the symbol for the function???
+//}
+
+void Function::DumpSymbolContext(Stream *s) {
+  m_comp_unit->DumpSymbolContext(s);
+  s->Printf(", Function{0x%8.8" PRIx64 "}", GetID());
+}
+
+size_t Function::MemorySize() const {
+  size_t mem_size = sizeof(Function) + m_block.MemorySize();
+  return mem_size;
+}
+
+bool Function::GetIsOptimized() {
+  bool result = false;
+
+  // Currently optimization is only indicted by the vendor extension
+  // DW_AT_APPLE_optimized which is set on a compile unit level.
+  if (m_comp_unit) {
+    result = m_comp_unit->GetIsOptimized();
+  }
+  return result;
+}
+
+bool Function::IsTopLevelFunction() {
+  bool result = false;
+
+  if (Language *language = Language::FindPlugin(GetLanguage()))
+    result = language->IsTopLevelFunction(*this);
+
+  return result;
+}
+
+ConstString Function::GetDisplayName() const {
+  return m_mangled.GetDisplayDemangledName(GetLanguage());
+}
+
+CompilerDeclContext Function::GetDeclContext() {
+  ModuleSP module_sp = CalculateSymbolContextModule();
+
+  if (module_sp) {
+    if (SymbolFile *sym_file = module_sp->GetSymbolFile())
+      return sym_file->GetDeclContextForUID(GetID());
+  }
+  return CompilerDeclContext();
+}
+
+Type *Function::GetType() {
+  if (m_type == nullptr) {
+    SymbolContext sc;
+
+    CalculateSymbolContext(&sc);
+
+    if (!sc.module_sp)
+      return nullptr;
+
+    SymbolFile *sym_file = sc.module_sp->GetSymbolFile();
+
+    if (sym_file == nullptr)
+      return nullptr;
+
+    m_type = sym_file->ResolveTypeUID(m_type_uid);
+  }
+  return m_type;
+}
+
+const Type *Function::GetType() const { return m_type; }
+
+CompilerType Function::GetCompilerType() {
+  Type *function_type = GetType();
+  if (function_type)
+    return function_type->GetFullCompilerType();
+  return CompilerType();
+}
+
+uint32_t Function::GetPrologueByteSize() {
+  if (m_prologue_byte_size == 0 &&
+      m_flags.IsClear(flagsCalculatedPrologueSize)) {
+    m_flags.Set(flagsCalculatedPrologueSize);
+    LineTable *line_table = m_comp_unit->GetLineTable();
+    uint32_t prologue_end_line_idx = 0;
+
+    if (line_table) {
+      LineEntry first_line_entry;
+      uint32_t first_line_entry_idx = UINT32_MAX;
+      if (line_table->FindLineEntryByAddress(GetAddressRange().GetBaseAddress(),
+                                             first_line_entry,
+                                             &first_line_entry_idx)) {
+        // Make sure the first line entry isn't already the end of the prologue
+        addr_t prologue_end_file_addr = LLDB_INVALID_ADDRESS;
+        addr_t line_zero_end_file_addr = LLDB_INVALID_ADDRESS;
+
+        if (first_line_entry.is_prologue_end) {
+          prologue_end_file_addr =
+              first_line_entry.range.GetBaseAddress().GetFileAddress();
+          prologue_end_line_idx = first_line_entry_idx;
+        } else {
+          // Check the first few instructions and look for one that has
+          // is_prologue_end set to true.
+          const uint32_t last_line_entry_idx = first_line_entry_idx + 6;
+          for (uint32_t idx = first_line_entry_idx + 1;
+               idx < last_line_entry_idx; ++idx) {
+            LineEntry line_entry;
+            if (line_table->GetLineEntryAtIndex(idx, line_entry)) {
+              if (line_entry.is_prologue_end) {
+                prologue_end_file_addr =
+                    line_entry.range.GetBaseAddress().GetFileAddress();
+                prologue_end_line_idx = idx;
+                break;
+              }
+            }
+          }
+        }
+
+        // If we didn't find the end of the prologue in the line tables, then
+        // just use the end address of the first line table entry
+        if (prologue_end_file_addr == LLDB_INVALID_ADDRESS) {
+          // Check the first few instructions and look for one that has a line
+          // number that's different than the first entry.
+          uint32_t last_line_entry_idx = first_line_entry_idx + 6;
+          for (uint32_t idx = first_line_entry_idx + 1;
+               idx < last_line_entry_idx; ++idx) {
+            LineEntry line_entry;
+            if (line_table->GetLineEntryAtIndex(idx, line_entry)) {
+              if (line_entry.line != first_line_entry.line) {
+                prologue_end_file_addr =
+                    line_entry.range.GetBaseAddress().GetFileAddress();
+                prologue_end_line_idx = idx;
+                break;
+              }
+            }
+          }
+
+          if (prologue_end_file_addr == LLDB_INVALID_ADDRESS) {
+            prologue_end_file_addr =
+                first_line_entry.range.GetBaseAddress().GetFileAddress() +
+                first_line_entry.range.GetByteSize();
+            prologue_end_line_idx = first_line_entry_idx;
+          }
+        }
+
+        const addr_t func_start_file_addr =
+            m_range.GetBaseAddress().GetFileAddress();
+        const addr_t func_end_file_addr =
+            func_start_file_addr + m_range.GetByteSize();
+
+        // Now calculate the offset to pass the subsequent line 0 entries.
+        uint32_t first_non_zero_line = prologue_end_line_idx;
+        while (true) {
+          LineEntry line_entry;
+          if (line_table->GetLineEntryAtIndex(first_non_zero_line,
+                                              line_entry)) {
+            if (line_entry.line != 0)
+              break;
+          }
+          if (line_entry.range.GetBaseAddress().GetFileAddress() >=
+              func_end_file_addr)
+            break;
+
+          first_non_zero_line++;
+        }
+
+        if (first_non_zero_line > prologue_end_line_idx) {
+          LineEntry first_non_zero_entry;
+          if (line_table->GetLineEntryAtIndex(first_non_zero_line,
+                                              first_non_zero_entry)) {
+            line_zero_end_file_addr =
+                first_non_zero_entry.range.GetBaseAddress().GetFileAddress();
+          }
+        }
+
+        // Verify that this prologue end file address in the function's address
+        // range just to be sure
+        if (func_start_file_addr < prologue_end_file_addr &&
+            prologue_end_file_addr < func_end_file_addr) {
+          m_prologue_byte_size = prologue_end_file_addr - func_start_file_addr;
+        }
+
+        if (prologue_end_file_addr < line_zero_end_file_addr &&
+            line_zero_end_file_addr < func_end_file_addr) {
+          m_prologue_byte_size +=
+              line_zero_end_file_addr - prologue_end_file_addr;
+        }
+      }
+    }
+  }
+
+  return m_prologue_byte_size;
+}
+
+lldb::LanguageType Function::GetLanguage() const {
+  lldb::LanguageType lang = m_mangled.GuessLanguage();
+  if (lang != lldb::eLanguageTypeUnknown)
+    return lang;
+
+  if (m_comp_unit)
+    return m_comp_unit->GetLanguage();
+
+  return lldb::eLanguageTypeUnknown;
+}
+
+ConstString Function::GetName() const {
+  LanguageType language = lldb::eLanguageTypeUnknown;
+  if (m_comp_unit)
+    language = m_comp_unit->GetLanguage();
+  return m_mangled.GetName(language);
+}
+
+ConstString Function::GetNameNoArguments() const {
+  LanguageType language = lldb::eLanguageTypeUnknown;
+  if (m_comp_unit)
+    language = m_comp_unit->GetLanguage();
+  return m_mangled.GetName(language, Mangled::ePreferDemangledWithoutArguments);
+}