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-rw-r--r--contrib/libs/llvm12/tools/llvm-cxxdump/llvm-cxxdump.cpp561
1 files changed, 561 insertions, 0 deletions
diff --git a/contrib/libs/llvm12/tools/llvm-cxxdump/llvm-cxxdump.cpp b/contrib/libs/llvm12/tools/llvm-cxxdump/llvm-cxxdump.cpp
new file mode 100644
index 0000000000..03e1bab941
--- /dev/null
+++ b/contrib/libs/llvm12/tools/llvm-cxxdump/llvm-cxxdump.cpp
@@ -0,0 +1,561 @@
+//===- llvm-cxxdump.cpp - Dump C++ data in an Object File -------*- 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
+//
+//===----------------------------------------------------------------------===//
+//
+// 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/Object/SymbolSize.h"
+#include "llvm/Support/Debug.h"
+#include "llvm/Support/Endian.h"
+#include "llvm/Support/FileSystem.h"
+#include "llvm/Support/InitLLVM.h"
+#include "llvm/Support/TargetRegistry.h"
+#include "llvm/Support/TargetSelect.h"
+#include "llvm/Support/WithColor.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
+
+namespace llvm {
+
+static void error(std::error_code EC) {
+ if (!EC)
+ return;
+ WithColor::error(outs(), "") << "reading file: " << EC.message() << ".\n";
+ outs().flush();
+ exit(1);
+}
+
+LLVM_ATTRIBUTE_NORETURN static void error(Error Err) {
+ logAllUnhandledErrors(std::move(Err), WithColor::error(outs()),
+ "reading file: ");
+ outs().flush();
+ exit(1);
+}
+
+template <typename T>
+T unwrapOrError(Expected<T> EO) {
+ if (!EO)
+ error(EO.takeError());
+ return std::move(*EO);
+}
+
+} // namespace llvm
+
+static void reportError(StringRef Input, StringRef Message) {
+ if (Input == "-")
+ Input = "<stdin>";
+ WithColor::error(errs(), Input) << Message << "\n";
+ errs().flush();
+ exit(1);
+}
+
+static void reportError(StringRef Input, std::error_code EC) {
+ reportError(Input, EC.message());
+}
+
+static std::map<SectionRef, SmallVector<SectionRef, 1>> SectionRelocMap;
+
+static void 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 : SectionRelocMap[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;
+ Expected<StringRef> RelocSymName = RelocSymI->getName();
+ error(errorToErrorCode(RelocSymName.takeError()));
+ uint64_t Offset = Reloc.getOffset();
+ if (Offset >= SymOffset && Offset < SymEnd) {
+ *I = *RelocSymName;
+ ++I;
+ }
+ }
+ }
+}
+
+static void 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 : SectionRelocMap[Sec]) {
+ for (const object::RelocationRef &Reloc : SR.relocations()) {
+ const object::symbol_iterator RelocSymI = Reloc.getSymbol();
+ if (RelocSymI == Obj->symbol_end())
+ continue;
+ Expected<StringRef> RelocSymName = RelocSymI->getName();
+ error(errorToErrorCode(RelocSymName.takeError()));
+ uint64_t Offset = Reloc.getOffset();
+ if (Offset >= SymOffset && Offset < SymEnd)
+ Collection[std::make_pair(SymName, Offset - SymOffset)] = *RelocSymName;
+ }
+ }
+}
+
+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;
+
+ SectionRelocMap.clear();
+ for (const SectionRef &Section : Obj->sections()) {
+ Expected<section_iterator> ErrOrSec = Section.getRelocatedSection();
+ if (!ErrOrSec)
+ error(ErrOrSec.takeError());
+
+ section_iterator Sec2 = *ErrOrSec;
+ if (Sec2 != Obj->section_end())
+ SectionRelocMap[*Sec2].push_back(Section);
+ }
+
+ uint8_t BytesInAddress = Obj->getBytesInAddress();
+
+ std::vector<std::pair<SymbolRef, uint64_t>> SymAddr =
+ object::computeSymbolSizes(*Obj);
+
+ for (auto &P : SymAddr) {
+ object::SymbolRef Sym = P.first;
+ uint64_t SymSize = P.second;
+ Expected<StringRef> SymNameOrErr = Sym.getName();
+ error(errorToErrorCode(SymNameOrErr.takeError()));
+ StringRef SymName = *SymNameOrErr;
+ Expected<object::section_iterator> SecIOrErr = Sym.getSection();
+ error(errorToErrorCode(SecIOrErr.takeError()));
+ object::section_iterator SecI = *SecIOrErr;
+ // 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 = unwrapOrError(Sec.getContents());
+ Expected<uint64_t> SymAddressOrErr = Sym.getAddress();
+ error(errorToErrorCode(SymAddressOrErr.takeError()));
+ uint64_t SymAddress = *SymAddressOrErr;
+ 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 = makeArrayRef(
+ reinterpret_cast<const little32_t *>(SymContents.data()), 3);
+ StringRef *I = std::begin(COL.Symbols), *E = std::end(COL.Symbols);
+ collectRelocatedSymbols(Obj, Sec, SecAddress, SymAddress, SymSize, I, E);
+ COLs[SymName] = COL;
+ }
+ // Class hierarchy descriptors in the MS-ABI start with '??_R3'
+ else if (SymName.startswith("??_R3")) {
+ ClassHierarchyDescriptor CHD;
+ CHD.Data = makeArrayRef(
+ reinterpret_cast<const little32_t *>(SymContents.data()), 3);
+ StringRef *I = std::begin(CHD.Symbols), *E = std::end(CHD.Symbols);
+ collectRelocatedSymbols(Obj, Sec, SecAddress, SymAddress, SymSize, I, E);
+ 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 = makeArrayRef(
+ reinterpret_cast<const little32_t *>(SymContents.data()) + 1, 5);
+ StringRef *I = std::begin(BCD.Symbols), *E = std::end(BCD.Symbols);
+ collectRelocatedSymbols(Obj, Sec, SecAddress, SymAddress, SymSize, I, E);
+ 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);
+ collectRelocatedSymbols(Obj, Sec, SecAddress, SymAddress, SymSize, I, E);
+ 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);
+ collectRelocatedSymbols(Obj, Sec, SecAddress, SymAddress, SymSize, I, E);
+ 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 auto &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 auto &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 auto &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 auto &BCAEntry : BCAEntries) {
+ StringRef BCAName = BCAEntry.first.first;
+ uint64_t Offset = BCAEntry.first.second;
+ StringRef SymName = BCAEntry.second;
+ outs() << BCAName << '[' << Offset << "]: " << SymName << '\n';
+ }
+ for (const auto &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 auto &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 auto &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 auto &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 auto &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 auto &VTTPair : VTTEntries) {
+ StringRef VTTName = VTTPair.first.first;
+ uint64_t VTTOffset = VTTPair.first.second;
+ StringRef VTTEntry = VTTPair.second;
+ outs() << VTTName << '[' << VTTOffset << "]: " << VTTEntry << '\n';
+ }
+ for (const auto &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) {
+ Error Err = Error::success();
+ for (auto &ArcC : Arc->children(Err)) {
+ Expected<std::unique_ptr<Binary>> ChildOrErr = ArcC.getAsBinary();
+ if (!ChildOrErr) {
+ // Ignore non-object files.
+ if (auto E = isNotObjectErrorInvalidFileType(ChildOrErr.takeError())) {
+ std::string Buf;
+ raw_string_ostream OS(Buf);
+ logAllUnhandledErrors(std::move(E), OS);
+ OS.flush();
+ reportError(Arc->getFileName(), Buf);
+ }
+ consumeError(ChildOrErr.takeError());
+ continue;
+ }
+
+ if (ObjectFile *Obj = dyn_cast<ObjectFile>(&*ChildOrErr.get()))
+ dumpCXXData(Obj);
+ else
+ reportError(Arc->getFileName(), cxxdump_error::unrecognized_file_format);
+ }
+ if (Err)
+ error(std::move(Err));
+}
+
+static void dumpInput(StringRef File) {
+ // Attempt to open the binary.
+ Expected<OwningBinary<Binary>> BinaryOrErr = createBinary(File);
+ if (!BinaryOrErr) {
+ auto EC = errorToErrorCode(BinaryOrErr.takeError());
+ 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[]) {
+ InitLLVM X(argc, argv);
+
+ // 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("-");
+
+ llvm::for_each(opts::InputFilenames, dumpInput);
+
+ return EXIT_SUCCESS;
+}