1 files changed, 0 insertions, 274 deletions
diff --git a/llvm/tools/llvm-cfi-verify/FileAnalysis.cpp b/llvm/tools/llvm-cfi-verify/FileAnalysis.cpp
deleted file mode 100644
index cd38ae5d36a..00000000000
--- a/llvm/tools/llvm-cfi-verify/FileAnalysis.cpp
+++ /dev/null
@@ -1,274 +0,0 @@
-//===- FileAnalysis.cpp -----------------------------------------*- C++ -*-===//
-//
-//                      The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#include "FileAnalysis.h"
-
-#include "llvm/BinaryFormat/ELF.h"
-#include "llvm/MC/MCAsmInfo.h"
-#include "llvm/MC/MCContext.h"
-#include "llvm/MC/MCDisassembler/MCDisassembler.h"
-#include "llvm/MC/MCInst.h"
-#include "llvm/MC/MCInstPrinter.h"
-#include "llvm/MC/MCInstrAnalysis.h"
-#include "llvm/MC/MCInstrDesc.h"
-#include "llvm/MC/MCInstrInfo.h"
-#include "llvm/MC/MCObjectFileInfo.h"
-#include "llvm/MC/MCRegisterInfo.h"
-#include "llvm/MC/MCSubtargetInfo.h"
-#include "llvm/Object/Binary.h"
-#include "llvm/Object/COFF.h"
-#include "llvm/Object/ELFObjectFile.h"
-#include "llvm/Object/ObjectFile.h"
-#include "llvm/Support/Casting.h"
-#include "llvm/Support/CommandLine.h"
-#include "llvm/Support/Error.h"
-#include "llvm/Support/FormatVariadic.h"
-#include "llvm/Support/MemoryBuffer.h"
-#include "llvm/Support/TargetRegistry.h"
-#include "llvm/Support/TargetSelect.h"
-#include "llvm/Support/raw_ostream.h"
-
-#include <functional>
-
-using Instr = llvm::cfi_verify::FileAnalysis::Instr;
-
-namespace llvm {
-namespace cfi_verify {
-
-Expected<FileAnalysis> FileAnalysis::Create(StringRef Filename) {
-  // Open the filename provided.
-  Expected<object::OwningBinary<object::Binary>> BinaryOrErr =
-      object::createBinary(Filename);
-  if (!BinaryOrErr)
-    return BinaryOrErr.takeError();
-
-  // Construct the object and allow it to take ownership of the binary.
-  object::OwningBinary<object::Binary> Binary = std::move(BinaryOrErr.get());
-  FileAnalysis Analysis(std::move(Binary));
-
-  Analysis.Object = dyn_cast<object::ObjectFile>(Analysis.Binary.getBinary());
-  if (!Analysis.Object)
-    return make_error<UnsupportedDisassembly>();
-
-  Analysis.ObjectTriple = Analysis.Object->makeTriple();
-  Analysis.Features = Analysis.Object->getFeatures();
-
-  // Init the rest of the object.
-  if (auto InitResponse = Analysis.initialiseDisassemblyMembers())
-    return std::move(InitResponse);
-
-  if (auto SectionParseResponse = Analysis.parseCodeSections())
-    return std::move(SectionParseResponse);
-
-  return std::move(Analysis);
-}
-
-FileAnalysis::FileAnalysis(object::OwningBinary<object::Binary> Binary)
-    : Binary(std::move(Binary)) {}
-
-FileAnalysis::FileAnalysis(const Triple &ObjectTriple,
-                           const SubtargetFeatures &Features)
-    : ObjectTriple(ObjectTriple), Features(Features) {}
-
-const Instr *
-FileAnalysis::getPrevInstructionSequential(const Instr &InstrMeta) const {
-  std::map<uint64_t, Instr>::const_iterator KV =
-      Instructions.find(InstrMeta.VMAddress);
-  if (KV == Instructions.end() || KV == Instructions.begin())
-    return nullptr;
-
-  if (!(--KV)->second.Valid)
-    return nullptr;
-
-  return &KV->second;
-}
-
-const Instr *
-FileAnalysis::getNextInstructionSequential(const Instr &InstrMeta) const {
-  std::map<uint64_t, Instr>::const_iterator KV =
-      Instructions.find(InstrMeta.VMAddress);
-  if (KV == Instructions.end() || ++KV == Instructions.end())
-    return nullptr;
-
-  if (!KV->second.Valid)
-    return nullptr;
-
-  return &KV->second;
-}
-
-bool FileAnalysis::usesRegisterOperand(const Instr& InstrMeta) const {
-  for (const auto &Operand : InstrMeta.Instruction) {
-    if (Operand.isReg())
-      return true;
-  }
-  return false;
-}
-
-const Instr *FileAnalysis::getInstruction(uint64_t Address) const {
-  const auto &InstrKV = Instructions.find(Address);
-  if (InstrKV == Instructions.end())
-    return nullptr;
-
-  return &InstrKV->second;
-}
-
-const Instr &FileAnalysis::getInstructionOrDie(uint64_t Address) const {
-  const auto &InstrKV = Instructions.find(Address);
-  assert(InstrKV != Instructions.end() && "Address doesn't exist.");
-  return InstrKV->second;
-}
-
-const std::set<uint64_t> &FileAnalysis::getIndirectInstructions() const {
-  return IndirectInstructions;
-}
-
-const MCRegisterInfo *FileAnalysis::getRegisterInfo() const {
-  return RegisterInfo.get();
-}
-
-const MCInstrInfo *FileAnalysis::getMCInstrInfo() const { return MII.get(); }
-
-const MCInstrAnalysis *FileAnalysis::getMCInstrAnalysis() const {
-  return MIA.get();
-}
-
-Error FileAnalysis::initialiseDisassemblyMembers() {
-  std::string TripleName = ObjectTriple.getTriple();
-  ArchName = "";
-  MCPU = "";
-  std::string ErrorString;
-
-  ObjectTarget =
-      TargetRegistry::lookupTarget(ArchName, ObjectTriple, ErrorString);
-  if (!ObjectTarget)
-    return make_error<StringError>(Twine("Couldn't find target \"") +
-                                       ObjectTriple.getTriple() +
-                                       "\", failed with error: " + ErrorString,
-                                   inconvertibleErrorCode());
-
-  RegisterInfo.reset(ObjectTarget->createMCRegInfo(TripleName));
-  if (!RegisterInfo)
-    return make_error<StringError>("Failed to initialise RegisterInfo.",
-                                   inconvertibleErrorCode());
-
-  AsmInfo.reset(ObjectTarget->createMCAsmInfo(*RegisterInfo, TripleName));
-  if (!AsmInfo)
-    return make_error<StringError>("Failed to initialise AsmInfo.",
-                                   inconvertibleErrorCode());
-
-  SubtargetInfo.reset(ObjectTarget->createMCSubtargetInfo(
-      TripleName, MCPU, Features.getString()));
-  if (!SubtargetInfo)
-    return make_error<StringError>("Failed to initialise SubtargetInfo.",
-                                   inconvertibleErrorCode());
-
-  MII.reset(ObjectTarget->createMCInstrInfo());
-  if (!MII)
-    return make_error<StringError>("Failed to initialise MII.",
-                                   inconvertibleErrorCode());
-
-  Context.reset(new MCContext(AsmInfo.get(), RegisterInfo.get(), &MOFI));
-
-  Disassembler.reset(
-      ObjectTarget->createMCDisassembler(*SubtargetInfo, *Context));
-
-  if (!Disassembler)
-    return make_error<StringError>("No disassembler available for target",
-                                   inconvertibleErrorCode());
-
-  MIA.reset(ObjectTarget->createMCInstrAnalysis(MII.get()));
-
-  Printer.reset(ObjectTarget->createMCInstPrinter(
-      ObjectTriple, AsmInfo->getAssemblerDialect(), *AsmInfo, *MII,
-      *RegisterInfo));
-
-  return Error::success();
-}
-
-Error FileAnalysis::parseCodeSections() {
-  for (const object::SectionRef &Section : Object->sections()) {
-    // Ensure only executable sections get analysed.
-    if (!(object::ELFSectionRef(Section).getFlags() & ELF::SHF_EXECINSTR))
-      continue;
-
-    StringRef SectionContents;
-    if (Section.getContents(SectionContents))
-      return make_error<StringError>("Failed to retrieve section contents",
-                                     inconvertibleErrorCode());
-
-    ArrayRef<uint8_t> SectionBytes((const uint8_t *)SectionContents.data(),
-                                   Section.getSize());
-    parseSectionContents(SectionBytes, Section.getAddress());
-  }
-  return Error::success();
-}
-
-void FileAnalysis::parseSectionContents(ArrayRef<uint8_t> SectionBytes,
-                                        uint64_t SectionAddress) {
-  MCInst Instruction;
-  Instr InstrMeta;
-  uint64_t InstructionSize;
-
-  for (uint64_t Byte = 0; Byte < SectionBytes.size();) {
-    bool ValidInstruction =
-        Disassembler->getInstruction(Instruction, InstructionSize,
-                                     SectionBytes.drop_front(Byte), 0, nulls(),
-                                     outs()) == MCDisassembler::Success;
-
-    Byte += InstructionSize;
-
-    uint64_t VMAddress = SectionAddress + Byte - InstructionSize;
-    InstrMeta.Instruction = Instruction;
-    InstrMeta.VMAddress = VMAddress;
-    InstrMeta.InstructionSize = InstructionSize;
-    InstrMeta.Valid = ValidInstruction;
-    addInstruction(InstrMeta);
-
-    if (!ValidInstruction)
-      continue;
-
-    // Skip additional parsing for instructions that do not affect the control
-    // flow.
-    const auto &InstrDesc = MII->get(Instruction.getOpcode());
-    if (!InstrDesc.mayAffectControlFlow(Instruction, *RegisterInfo))
-      continue;
-
-    uint64_t Target;
-    if (MIA->evaluateBranch(Instruction, VMAddress, InstructionSize, Target)) {
-      // If the target can be evaluated, it's not indirect.
-      StaticBranchTargetings[Target].push_back(VMAddress);
-      continue;
-    }
-
-    if (!usesRegisterOperand(InstrMeta))
-      continue;
-
-    IndirectInstructions.insert(VMAddress);
-  }
-}
-
-void FileAnalysis::addInstruction(const Instr &Instruction) {
-  const auto &KV =
-      Instructions.insert(std::make_pair(Instruction.VMAddress, Instruction));
-  assert(
-      KV.second &&
-      "Failed to add instruction, instruction at this address already exists.");
-}
-
-char UnsupportedDisassembly::ID;
-void UnsupportedDisassembly::log(raw_ostream &OS) const {
-  OS << "Dissassembling of non-objects not currently supported.\n";
-}
-
-std::error_code UnsupportedDisassembly::convertToErrorCode() const {
-  return std::error_code();
-}
-
-} // namespace cfi_verify
-} // namespace llvm