am 31195f0b: Merge "Update aosp/master llvm for rebase to r233350"

* commit '31195f0bdca6ee2a5e72d07edf13e1d81206d949':
  Update aosp/master llvm for rebase to r233350

1 files changed, 571 insertions, 0 deletions

diff --git a/tools/llvm-cxxdump/llvm-cxxdump.cpp b/tools/llvm-cxxdump/llvm-cxxdump.cpp
new file mode 100644
index 0000000..aeb977a
--- /dev/null
+++ b/tools/llvm-cxxdump/llvm-cxxdump.cpp
@@ -0,0 +1,571 @@
+//===- llvm-cxxdump.cpp - Dump C++ data in an Object File -------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// Dumps C++ data resident in object files and archives.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm-cxxdump.h"
+#include "Error.h"
+#include "llvm/ADT/ArrayRef.h"
+#include "llvm/Object/Archive.h"
+#include "llvm/Object/ObjectFile.h"
+#include "llvm/Support/Debug.h"
+#include "llvm/Support/Endian.h"
+#include "llvm/Support/FileSystem.h"
+#include "llvm/Support/ManagedStatic.h"
+#include "llvm/Support/PrettyStackTrace.h"
+#include "llvm/Support/Signals.h"
+#include "llvm/Support/TargetRegistry.h"
+#include "llvm/Support/TargetSelect.h"
+#include "llvm/Support/raw_ostream.h"
+#include <map>
+#include <string>
+#include <system_error>
+
+using namespace llvm;
+using namespace llvm::object;
+using namespace llvm::support;
+
+namespace opts {
+cl::list<std::string> InputFilenames(cl::Positional,
+                                     cl::desc("<input object files>"),
+                                     cl::ZeroOrMore);
+} // namespace opts
+
+static int ReturnValue = EXIT_SUCCESS;
+
+namespace llvm {
+
+static bool error(std::error_code EC) {
+  if (!EC)
+    return false;
+
+  ReturnValue = EXIT_FAILURE;
+  outs() << "\nError reading file: " << EC.message() << ".\n";
+  outs().flush();
+  return true;
+}
+
+} // namespace llvm
+
+static void reportError(StringRef Input, StringRef Message) {
+  if (Input == "-")
+    Input = "<stdin>";
+
+  errs() << Input << ": " << Message << "\n";
+  errs().flush();
+  ReturnValue = EXIT_FAILURE;
+}
+
+static void reportError(StringRef Input, std::error_code EC) {
+  reportError(Input, EC.message());
+}
+
+static SmallVectorImpl<SectionRef> &getRelocSections(const ObjectFile *Obj,
+                                                     const SectionRef &Sec) {
+  static bool MappingDone = false;
+  static std::map<SectionRef, SmallVector<SectionRef, 1>> SectionRelocMap;
+  if (!MappingDone) {
+    for (const SectionRef &Section : Obj->sections()) {
+      section_iterator Sec2 = Section.getRelocatedSection();
+      if (Sec2 != Obj->section_end())
+        SectionRelocMap[*Sec2].push_back(Section);
+    }
+    MappingDone = true;
+  }
+  return SectionRelocMap[Sec];
+}
+
+static bool collectRelocatedSymbols(const ObjectFile *Obj,
+                                    const SectionRef &Sec, uint64_t SecAddress,
+                                    uint64_t SymAddress, uint64_t SymSize,
+                                    StringRef *I, StringRef *E) {
+  uint64_t SymOffset = SymAddress - SecAddress;
+  uint64_t SymEnd = SymOffset + SymSize;
+  for (const SectionRef &SR : getRelocSections(Obj, Sec)) {
+    for (const object::RelocationRef &Reloc : SR.relocations()) {
+      if (I == E)
+        break;
+      const object::symbol_iterator RelocSymI = Reloc.getSymbol();
+      if (RelocSymI == Obj->symbol_end())
+        continue;
+      StringRef RelocSymName;
+      if (error(RelocSymI->getName(RelocSymName)))
+        return true;
+      uint64_t Offset;
+      if (error(Reloc.getOffset(Offset)))
+        return true;
+      if (Offset >= SymOffset && Offset < SymEnd) {
+        *I = RelocSymName;
+        ++I;
+      }
+    }
+  }
+  return false;
+}
+
+static bool collectRelocationOffsets(
+    const ObjectFile *Obj, const SectionRef &Sec, uint64_t SecAddress,
+    uint64_t SymAddress, uint64_t SymSize, StringRef SymName,
+    std::map<std::pair<StringRef, uint64_t>, StringRef> &Collection) {
+  uint64_t SymOffset = SymAddress - SecAddress;
+  uint64_t SymEnd = SymOffset + SymSize;
+  for (const SectionRef &SR : getRelocSections(Obj, Sec)) {
+    for (const object::RelocationRef &Reloc : SR.relocations()) {
+      const object::symbol_iterator RelocSymI = Reloc.getSymbol();
+      if (RelocSymI == Obj->symbol_end())
+        continue;
+      StringRef RelocSymName;
+      if (error(RelocSymI->getName(RelocSymName)))
+        return true;
+      uint64_t Offset;
+      if (error(Reloc.getOffset(Offset)))
+        return true;
+      if (Offset >= SymOffset && Offset < SymEnd)
+        Collection[std::make_pair(SymName, Offset - SymOffset)] = RelocSymName;
+    }
+  }
+  return false;
+}
+
+static void dumpCXXData(const ObjectFile *Obj) {
+  struct CompleteObjectLocator {
+    StringRef Symbols[2];
+    ArrayRef<little32_t> Data;
+  };
+  struct ClassHierarchyDescriptor {
+    StringRef Symbols[1];
+    ArrayRef<little32_t> Data;
+  };
+  struct BaseClassDescriptor {
+    StringRef Symbols[2];
+    ArrayRef<little32_t> Data;
+  };
+  struct TypeDescriptor {
+    StringRef Symbols[1];
+    uint64_t AlwaysZero;
+    StringRef MangledName;
+  };
+  struct ThrowInfo {
+    uint32_t Flags;
+  };
+  struct CatchableTypeArray {
+    uint32_t NumEntries;
+  };
+  struct CatchableType {
+    uint32_t Flags;
+    uint32_t NonVirtualBaseAdjustmentOffset;
+    int32_t VirtualBasePointerOffset;
+    uint32_t VirtualBaseAdjustmentOffset;
+    uint32_t Size;
+    StringRef Symbols[2];
+  };
+  std::map<std::pair<StringRef, uint64_t>, StringRef> VFTableEntries;
+  std::map<std::pair<StringRef, uint64_t>, StringRef> TIEntries;
+  std::map<std::pair<StringRef, uint64_t>, StringRef> CTAEntries;
+  std::map<StringRef, ArrayRef<little32_t>> VBTables;
+  std::map<StringRef, CompleteObjectLocator> COLs;
+  std::map<StringRef, ClassHierarchyDescriptor> CHDs;
+  std::map<std::pair<StringRef, uint64_t>, StringRef> BCAEntries;
+  std::map<StringRef, BaseClassDescriptor> BCDs;
+  std::map<StringRef, TypeDescriptor> TDs;
+  std::map<StringRef, ThrowInfo> TIs;
+  std::map<StringRef, CatchableTypeArray> CTAs;
+  std::map<StringRef, CatchableType> CTs;
+
+  std::map<std::pair<StringRef, uint64_t>, StringRef> VTableSymEntries;
+  std::map<std::pair<StringRef, uint64_t>, int64_t> VTableDataEntries;
+  std::map<std::pair<StringRef, uint64_t>, StringRef> VTTEntries;
+  std::map<StringRef, StringRef> TINames;
+
+  uint8_t BytesInAddress = Obj->getBytesInAddress();
+
+  for (const object::SymbolRef &Sym : Obj->symbols()) {
+    StringRef SymName;
+    if (error(Sym.getName(SymName)))
+      return;
+    object::section_iterator SecI(Obj->section_begin());
+    if (error(Sym.getSection(SecI)))
+      return;
+    // Skip external symbols.
+    if (SecI == Obj->section_end())
+      continue;
+    const SectionRef &Sec = *SecI;
+    // Skip virtual or BSS sections.
+    if (Sec.isBSS() || Sec.isVirtual())
+      continue;
+    StringRef SecContents;
+    if (error(Sec.getContents(SecContents)))
+      return;
+    uint64_t SymAddress, SymSize;
+    if (error(Sym.getAddress(SymAddress)) || error(Sym.getSize(SymSize)))
+      return;
+    uint64_t SecAddress = Sec.getAddress();
+    uint64_t SecSize = Sec.getSize();
+    uint64_t SymOffset = SymAddress - SecAddress;
+    StringRef SymContents = SecContents.substr(SymOffset, SymSize);
+
+    // VFTables in the MS-ABI start with '??_7' and are contained within their
+    // own COMDAT section.  We then determine the contents of the VFTable by
+    // looking at each relocation in the section.
+    if (SymName.startswith("??_7")) {
+      // Each relocation either names a virtual method or a thunk.  We note the
+      // offset into the section and the symbol used for the relocation.
+      collectRelocationOffsets(Obj, Sec, SecAddress, SecAddress, SecSize,
+                               SymName, VFTableEntries);
+    }
+    // VBTables in the MS-ABI start with '??_8' and are filled with 32-bit
+    // offsets of virtual bases.
+    else if (SymName.startswith("??_8")) {
+      ArrayRef<little32_t> VBTableData(
+          reinterpret_cast<const little32_t *>(SymContents.data()),
+          SymContents.size() / sizeof(little32_t));
+      VBTables[SymName] = VBTableData;
+    }
+    // Complete object locators in the MS-ABI start with '??_R4'
+    else if (SymName.startswith("??_R4")) {
+      CompleteObjectLocator COL;
+      COL.Data = ArrayRef<little32_t>(
+          reinterpret_cast<const little32_t *>(SymContents.data()), 3);
+      StringRef *I = std::begin(COL.Symbols), *E = std::end(COL.Symbols);
+      if (collectRelocatedSymbols(Obj, Sec, SecAddress, SymAddress, SymSize, I,
+                                  E))
+        return;
+      COLs[SymName] = COL;
+    }
+    // Class hierarchy descriptors in the MS-ABI start with '??_R3'
+    else if (SymName.startswith("??_R3")) {
+      ClassHierarchyDescriptor CHD;
+      CHD.Data = ArrayRef<little32_t>(
+          reinterpret_cast<const little32_t *>(SymContents.data()), 3);
+      StringRef *I = std::begin(CHD.Symbols), *E = std::end(CHD.Symbols);
+      if (collectRelocatedSymbols(Obj, Sec, SecAddress, SymAddress, SymSize, I,
+                                  E))
+        return;
+      CHDs[SymName] = CHD;
+    }
+    // Class hierarchy descriptors in the MS-ABI start with '??_R2'
+    else if (SymName.startswith("??_R2")) {
+      // Each relocation names a base class descriptor.  We note the offset into
+      // the section and the symbol used for the relocation.
+      collectRelocationOffsets(Obj, Sec, SecAddress, SymAddress, SymSize,
+                               SymName, BCAEntries);
+    }
+    // Base class descriptors in the MS-ABI start with '??_R1'
+    else if (SymName.startswith("??_R1")) {
+      BaseClassDescriptor BCD;
+      BCD.Data = ArrayRef<little32_t>(
+          reinterpret_cast<const little32_t *>(SymContents.data()) + 1, 5);
+      StringRef *I = std::begin(BCD.Symbols), *E = std::end(BCD.Symbols);
+      if (collectRelocatedSymbols(Obj, Sec, SecAddress, SymAddress, SymSize, I,
+                                  E))
+        return;
+      BCDs[SymName] = BCD;
+    }
+    // Type descriptors in the MS-ABI start with '??_R0'
+    else if (SymName.startswith("??_R0")) {
+      const char *DataPtr = SymContents.drop_front(BytesInAddress).data();
+      TypeDescriptor TD;
+      if (BytesInAddress == 8)
+        TD.AlwaysZero = *reinterpret_cast<const little64_t *>(DataPtr);
+      else
+        TD.AlwaysZero = *reinterpret_cast<const little32_t *>(DataPtr);
+      TD.MangledName = SymContents.drop_front(BytesInAddress * 2);
+      StringRef *I = std::begin(TD.Symbols), *E = std::end(TD.Symbols);
+      if (collectRelocatedSymbols(Obj, Sec, SecAddress, SymAddress, SymSize, I,
+                                  E))
+        return;
+      TDs[SymName] = TD;
+    }
+    // Throw descriptors in the MS-ABI start with '_TI'
+    else if (SymName.startswith("_TI") || SymName.startswith("__TI")) {
+      ThrowInfo TI;
+      TI.Flags = *reinterpret_cast<const little32_t *>(SymContents.data());
+      collectRelocationOffsets(Obj, Sec, SecAddress, SymAddress, SymSize,
+                               SymName, TIEntries);
+      TIs[SymName] = TI;
+    }
+    // Catchable type arrays in the MS-ABI start with _CTA or __CTA.
+    else if (SymName.startswith("_CTA") || SymName.startswith("__CTA")) {
+      CatchableTypeArray CTA;
+      CTA.NumEntries =
+          *reinterpret_cast<const little32_t *>(SymContents.data());
+      collectRelocationOffsets(Obj, Sec, SecAddress, SymAddress, SymSize,
+                               SymName, CTAEntries);
+      CTAs[SymName] = CTA;
+    }
+    // Catchable types in the MS-ABI start with _CT or __CT.
+    else if (SymName.startswith("_CT") || SymName.startswith("__CT")) {
+      const little32_t *DataPtr =
+          reinterpret_cast<const little32_t *>(SymContents.data());
+      CatchableType CT;
+      CT.Flags = DataPtr[0];
+      CT.NonVirtualBaseAdjustmentOffset = DataPtr[2];
+      CT.VirtualBasePointerOffset = DataPtr[3];
+      CT.VirtualBaseAdjustmentOffset = DataPtr[4];
+      CT.Size = DataPtr[5];
+      StringRef *I = std::begin(CT.Symbols), *E = std::end(CT.Symbols);
+      if (collectRelocatedSymbols(Obj, Sec, SecAddress, SymAddress, SymSize, I,
+                                  E))
+        return;
+      CTs[SymName] = CT;
+    }
+    // Construction vtables in the Itanium ABI start with '_ZTT' or '__ZTT'.
+    else if (SymName.startswith("_ZTT") || SymName.startswith("__ZTT")) {
+      collectRelocationOffsets(Obj, Sec, SecAddress, SymAddress, SymSize,
+                               SymName, VTTEntries);
+    }
+    // Typeinfo names in the Itanium ABI start with '_ZTS' or '__ZTS'.
+    else if (SymName.startswith("_ZTS") || SymName.startswith("__ZTS")) {
+      TINames[SymName] = SymContents.slice(0, SymContents.find('\0'));
+    }
+    // Vtables in the Itanium ABI start with '_ZTV' or '__ZTV'.
+    else if (SymName.startswith("_ZTV") || SymName.startswith("__ZTV")) {
+      collectRelocationOffsets(Obj, Sec, SecAddress, SymAddress, SymSize,
+                               SymName, VTableSymEntries);
+      for (uint64_t SymOffI = 0; SymOffI < SymSize; SymOffI += BytesInAddress) {
+        auto Key = std::make_pair(SymName, SymOffI);
+        if (VTableSymEntries.count(Key))
+          continue;
+        const char *DataPtr =
+            SymContents.substr(SymOffI, BytesInAddress).data();
+        int64_t VData;
+        if (BytesInAddress == 8)
+          VData = *reinterpret_cast<const little64_t *>(DataPtr);
+        else
+          VData = *reinterpret_cast<const little32_t *>(DataPtr);
+        VTableDataEntries[Key] = VData;
+      }
+    }
+    // Typeinfo structures in the Itanium ABI start with '_ZTI' or '__ZTI'.
+    else if (SymName.startswith("_ZTI") || SymName.startswith("__ZTI")) {
+      // FIXME: Do something with these!
+    }
+  }
+  for (const auto &VFTableEntry : VFTableEntries) {
+    StringRef VFTableName = VFTableEntry.first.first;
+    uint64_t Offset = VFTableEntry.first.second;
+    StringRef SymName = VFTableEntry.second;
+    outs() << VFTableName << '[' << Offset << "]: " << SymName << '\n';
+  }
+  for (const std::pair<StringRef, ArrayRef<little32_t>> &VBTable : VBTables) {
+    StringRef VBTableName = VBTable.first;
+    uint32_t Idx = 0;
+    for (little32_t Offset : VBTable.second) {
+      outs() << VBTableName << '[' << Idx << "]: " << Offset << '\n';
+      Idx += sizeof(Offset);
+    }
+  }
+  for (const std::pair<StringRef, CompleteObjectLocator> &COLPair : COLs) {
+    StringRef COLName = COLPair.first;
+    const CompleteObjectLocator &COL = COLPair.second;
+    outs() << COLName << "[IsImageRelative]: " << COL.Data[0] << '\n';
+    outs() << COLName << "[OffsetToTop]: " << COL.Data[1] << '\n';
+    outs() << COLName << "[VFPtrOffset]: " << COL.Data[2] << '\n';
+    outs() << COLName << "[TypeDescriptor]: " << COL.Symbols[0] << '\n';
+    outs() << COLName << "[ClassHierarchyDescriptor]: " << COL.Symbols[1]
+           << '\n';
+  }
+  for (const std::pair<StringRef, ClassHierarchyDescriptor> &CHDPair : CHDs) {
+    StringRef CHDName = CHDPair.first;
+    const ClassHierarchyDescriptor &CHD = CHDPair.second;
+    outs() << CHDName << "[AlwaysZero]: " << CHD.Data[0] << '\n';
+    outs() << CHDName << "[Flags]: " << CHD.Data[1] << '\n';
+    outs() << CHDName << "[NumClasses]: " << CHD.Data[2] << '\n';
+    outs() << CHDName << "[BaseClassArray]: " << CHD.Symbols[0] << '\n';
+  }
+  for (const std::pair<std::pair<StringRef, uint64_t>, StringRef> &BCAEntry :
+       BCAEntries) {
+    StringRef BCAName = BCAEntry.first.first;
+    uint64_t Offset = BCAEntry.first.second;
+    StringRef SymName = BCAEntry.second;
+    outs() << BCAName << '[' << Offset << "]: " << SymName << '\n';
+  }
+  for (const std::pair<StringRef, BaseClassDescriptor> &BCDPair : BCDs) {
+    StringRef BCDName = BCDPair.first;
+    const BaseClassDescriptor &BCD = BCDPair.second;
+    outs() << BCDName << "[TypeDescriptor]: " << BCD.Symbols[0] << '\n';
+    outs() << BCDName << "[NumBases]: " << BCD.Data[0] << '\n';
+    outs() << BCDName << "[OffsetInVBase]: " << BCD.Data[1] << '\n';
+    outs() << BCDName << "[VBPtrOffset]: " << BCD.Data[2] << '\n';
+    outs() << BCDName << "[OffsetInVBTable]: " << BCD.Data[3] << '\n';
+    outs() << BCDName << "[Flags]: " << BCD.Data[4] << '\n';
+    outs() << BCDName << "[ClassHierarchyDescriptor]: " << BCD.Symbols[1]
+           << '\n';
+  }
+  for (const std::pair<StringRef, TypeDescriptor> &TDPair : TDs) {
+    StringRef TDName = TDPair.first;
+    const TypeDescriptor &TD = TDPair.second;
+    outs() << TDName << "[VFPtr]: " << TD.Symbols[0] << '\n';
+    outs() << TDName << "[AlwaysZero]: " << TD.AlwaysZero << '\n';
+    outs() << TDName << "[MangledName]: ";
+    outs().write_escaped(TD.MangledName.rtrim(StringRef("\0", 1)),
+                         /*UseHexEscapes=*/true)
+        << '\n';
+  }
+  for (const std::pair<StringRef, ThrowInfo> &TIPair : TIs) {
+    StringRef TIName = TIPair.first;
+    const ThrowInfo &TI = TIPair.second;
+    auto dumpThrowInfoFlag = [&](const char *Name, uint32_t Flag) {
+      outs() << TIName << "[Flags." << Name
+             << "]: " << (TI.Flags & Flag ? "true" : "false") << '\n';
+    };
+    auto dumpThrowInfoSymbol = [&](const char *Name, int Offset) {
+      outs() << TIName << '[' << Name << "]: ";
+      auto Entry = TIEntries.find(std::make_pair(TIName, Offset));
+      outs() << (Entry == TIEntries.end() ? "null" : Entry->second) << '\n';
+    };
+    outs() << TIName << "[Flags]: " << TI.Flags << '\n';
+    dumpThrowInfoFlag("Const", 1);
+    dumpThrowInfoFlag("Volatile", 2);
+    dumpThrowInfoSymbol("CleanupFn", 4);
+    dumpThrowInfoSymbol("ForwardCompat", 8);
+    dumpThrowInfoSymbol("CatchableTypeArray", 12);
+  }
+  for (const std::pair<StringRef, CatchableTypeArray> &CTAPair : CTAs) {
+    StringRef CTAName = CTAPair.first;
+    const CatchableTypeArray &CTA = CTAPair.second;
+
+    outs() << CTAName << "[NumEntries]: " << CTA.NumEntries << '\n';
+
+    unsigned Idx = 0;
+    for (auto I = CTAEntries.lower_bound(std::make_pair(CTAName, 0)),
+              E = CTAEntries.upper_bound(std::make_pair(CTAName, UINT64_MAX));
+         I != E; ++I)
+      outs() << CTAName << '[' << Idx++ << "]: " << I->second << '\n';
+  }
+  for (const std::pair<StringRef, CatchableType> &CTPair : CTs) {
+    StringRef CTName = CTPair.first;
+    const CatchableType &CT = CTPair.second;
+    auto dumpCatchableTypeFlag = [&](const char *Name, uint32_t Flag) {
+      outs() << CTName << "[Flags." << Name
+             << "]: " << (CT.Flags & Flag ? "true" : "false") << '\n';
+    };
+    outs() << CTName << "[Flags]: " << CT.Flags << '\n';
+    dumpCatchableTypeFlag("ScalarType", 1);
+    dumpCatchableTypeFlag("VirtualInheritance", 4);
+    outs() << CTName << "[TypeDescriptor]: " << CT.Symbols[0] << '\n';
+    outs() << CTName << "[NonVirtualBaseAdjustmentOffset]: "
+           << CT.NonVirtualBaseAdjustmentOffset << '\n';
+    outs() << CTName
+           << "[VirtualBasePointerOffset]: " << CT.VirtualBasePointerOffset
+           << '\n';
+    outs() << CTName << "[VirtualBaseAdjustmentOffset]: "
+           << CT.VirtualBaseAdjustmentOffset << '\n';
+    outs() << CTName << "[Size]: " << CT.Size << '\n';
+    outs() << CTName
+           << "[CopyCtor]: " << (CT.Symbols[1].empty() ? "null" : CT.Symbols[1])
+           << '\n';
+  }
+  for (const std::pair<std::pair<StringRef, uint64_t>, StringRef> &VTTPair :
+       VTTEntries) {
+    StringRef VTTName = VTTPair.first.first;
+    uint64_t VTTOffset = VTTPair.first.second;
+    StringRef VTTEntry = VTTPair.second;
+    outs() << VTTName << '[' << VTTOffset << "]: " << VTTEntry << '\n';
+  }
+  for (const std::pair<StringRef, StringRef> &TIPair : TINames) {
+    StringRef TIName = TIPair.first;
+    outs() << TIName << ": " << TIPair.second << '\n';
+  }
+  auto VTableSymI = VTableSymEntries.begin();
+  auto VTableSymE = VTableSymEntries.end();
+  auto VTableDataI = VTableDataEntries.begin();
+  auto VTableDataE = VTableDataEntries.end();
+  for (;;) {
+    bool SymDone = VTableSymI == VTableSymE;
+    bool DataDone = VTableDataI == VTableDataE;
+    if (SymDone && DataDone)
+      break;
+    if (!SymDone && (DataDone || VTableSymI->first < VTableDataI->first)) {
+      StringRef VTableName = VTableSymI->first.first;
+      uint64_t Offset = VTableSymI->first.second;
+      StringRef VTableEntry = VTableSymI->second;
+      outs() << VTableName << '[' << Offset << "]: ";
+      outs() << VTableEntry;
+      outs() << '\n';
+      ++VTableSymI;
+      continue;
+    }
+    if (!DataDone && (SymDone || VTableDataI->first < VTableSymI->first)) {
+      StringRef VTableName = VTableDataI->first.first;
+      uint64_t Offset = VTableDataI->first.second;
+      int64_t VTableEntry = VTableDataI->second;
+      outs() << VTableName << '[' << Offset << "]: ";
+      outs() << VTableEntry;
+      outs() << '\n';
+      ++VTableDataI;
+      continue;
+    }
+  }
+}
+
+static void dumpArchive(const Archive *Arc) {
+  for (const Archive::Child &ArcC : Arc->children()) {
+    ErrorOr<std::unique_ptr<Binary>> ChildOrErr = ArcC.getAsBinary();
+    if (std::error_code EC = ChildOrErr.getError()) {
+      // Ignore non-object files.
+      if (EC != object_error::invalid_file_type)
+        reportError(Arc->getFileName(), EC.message());
+      continue;
+    }
+
+    if (ObjectFile *Obj = dyn_cast<ObjectFile>(&*ChildOrErr.get()))
+      dumpCXXData(Obj);
+    else
+      reportError(Arc->getFileName(), cxxdump_error::unrecognized_file_format);
+  }
+}
+
+static void dumpInput(StringRef File) {
+  // If file isn't stdin, check that it exists.
+  if (File != "-" && !sys::fs::exists(File)) {
+    reportError(File, cxxdump_error::file_not_found);
+    return;
+  }
+
+  // Attempt to open the binary.
+  ErrorOr<OwningBinary<Binary>> BinaryOrErr = createBinary(File);
+  if (std::error_code EC = BinaryOrErr.getError()) {
+    reportError(File, EC);
+    return;
+  }
+  Binary &Binary = *BinaryOrErr.get().getBinary();
+
+  if (Archive *Arc = dyn_cast<Archive>(&Binary))
+    dumpArchive(Arc);
+  else if (ObjectFile *Obj = dyn_cast<ObjectFile>(&Binary))
+    dumpCXXData(Obj);
+  else
+    reportError(File, cxxdump_error::unrecognized_file_format);
+}
+
+int main(int argc, const char *argv[]) {
+  sys::PrintStackTraceOnErrorSignal();
+  PrettyStackTraceProgram X(argc, argv);
+  llvm_shutdown_obj Y;
+
+  // Initialize targets.
+  llvm::InitializeAllTargetInfos();
+
+  // Register the target printer for --version.
+  cl::AddExtraVersionPrinter(TargetRegistry::printRegisteredTargetsForVersion);
+
+  cl::ParseCommandLineOptions(argc, argv, "LLVM C++ ABI Data Dumper\n");
+
+  // Default to stdin if no filename is specified.
+  if (opts::InputFilenames.size() == 0)
+    opts::InputFilenames.push_back("-");
+
+  std::for_each(opts::InputFilenames.begin(), opts::InputFilenames.end(),
+                dumpInput);
+
+  return ReturnValue;
+}