Intermediate changes

commit_hash:2ec2671384dd8e604d41bc5c52c2f7858e4afea6

1 files changed, 0 insertions, 725 deletions

diff --git a/contrib/libs/llvm14/lib/Object/ELFObjectFile.cpp b/contrib/libs/llvm14/lib/Object/ELFObjectFile.cpp
deleted file mode 100644
index cf1f12d9a9a..00000000000
--- a/contrib/libs/llvm14/lib/Object/ELFObjectFile.cpp
+++ /dev/null
@@ -1,725 +0,0 @@
-//===- ELFObjectFile.cpp - ELF object file implementation -----------------===//
-//
-// 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
-//
-//===----------------------------------------------------------------------===//
-//
-// Part of the ELFObjectFile class implementation.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/Object/ELFObjectFile.h"
-#include "llvm/ADT/Triple.h"
-#include "llvm/BinaryFormat/ELF.h"
-#include "llvm/MC/MCInstrAnalysis.h"
-#include "llvm/MC/SubtargetFeature.h"
-#include "llvm/MC/TargetRegistry.h"
-#include "llvm/Object/ELF.h"
-#include "llvm/Object/ELFTypes.h"
-#include "llvm/Object/Error.h"
-#include "llvm/Support/ARMAttributeParser.h"
-#include "llvm/Support/ARMBuildAttributes.h"
-#include "llvm/Support/Endian.h"
-#include "llvm/Support/ErrorHandling.h"
-#include "llvm/Support/MathExtras.h"
-#include "llvm/Support/RISCVAttributeParser.h"
-#include "llvm/Support/RISCVAttributes.h"
-#include <algorithm>
-#include <cstddef>
-#include <cstdint>
-#include <memory>
-#include <string>
-#include <system_error>
-#include <utility>
-
-using namespace llvm;
-using namespace object;
-
-const EnumEntry<unsigned> llvm::object::ElfSymbolTypes[NumElfSymbolTypes] = {
-    {"None", "NOTYPE", ELF::STT_NOTYPE},
-    {"Object", "OBJECT", ELF::STT_OBJECT},
-    {"Function", "FUNC", ELF::STT_FUNC},
-    {"Section", "SECTION", ELF::STT_SECTION},
-    {"File", "FILE", ELF::STT_FILE},
-    {"Common", "COMMON", ELF::STT_COMMON},
-    {"TLS", "TLS", ELF::STT_TLS},
-    {"Unknown", "<unknown>: 7", 7},
-    {"Unknown", "<unknown>: 8", 8},
-    {"Unknown", "<unknown>: 9", 9},
-    {"GNU_IFunc", "IFUNC", ELF::STT_GNU_IFUNC},
-    {"OS Specific", "<OS specific>: 11", 11},
-    {"OS Specific", "<OS specific>: 12", 12},
-    {"Proc Specific", "<processor specific>: 13", 13},
-    {"Proc Specific", "<processor specific>: 14", 14},
-    {"Proc Specific", "<processor specific>: 15", 15}
-};
-
-ELFObjectFileBase::ELFObjectFileBase(unsigned int Type, MemoryBufferRef Source)
-    : ObjectFile(Type, Source) {}
-
-template <class ELFT>
-static Expected<std::unique_ptr<ELFObjectFile<ELFT>>>
-createPtr(MemoryBufferRef Object, bool InitContent) {
-  auto Ret = ELFObjectFile<ELFT>::create(Object, InitContent);
-  if (Error E = Ret.takeError())
-    return std::move(E);
-  return std::make_unique<ELFObjectFile<ELFT>>(std::move(*Ret));
-}
-
-Expected<std::unique_ptr<ObjectFile>>
-ObjectFile::createELFObjectFile(MemoryBufferRef Obj, bool InitContent) {
-  std::pair<unsigned char, unsigned char> Ident =
-      getElfArchType(Obj.getBuffer());
-  std::size_t MaxAlignment =
-      1ULL << countTrailingZeros(
-          reinterpret_cast<uintptr_t>(Obj.getBufferStart()));
-
-  if (MaxAlignment < 2)
-    return createError("Insufficient alignment");
-
-  if (Ident.first == ELF::ELFCLASS32) {
-    if (Ident.second == ELF::ELFDATA2LSB)
-      return createPtr<ELF32LE>(Obj, InitContent);
-    else if (Ident.second == ELF::ELFDATA2MSB)
-      return createPtr<ELF32BE>(Obj, InitContent);
-    else
-      return createError("Invalid ELF data");
-  } else if (Ident.first == ELF::ELFCLASS64) {
-    if (Ident.second == ELF::ELFDATA2LSB)
-      return createPtr<ELF64LE>(Obj, InitContent);
-    else if (Ident.second == ELF::ELFDATA2MSB)
-      return createPtr<ELF64BE>(Obj, InitContent);
-    else
-      return createError("Invalid ELF data");
-  }
-  return createError("Invalid ELF class");
-}
-
-SubtargetFeatures ELFObjectFileBase::getMIPSFeatures() const {
-  SubtargetFeatures Features;
-  unsigned PlatformFlags = getPlatformFlags();
-
-  switch (PlatformFlags & ELF::EF_MIPS_ARCH) {
-  case ELF::EF_MIPS_ARCH_1:
-    break;
-  case ELF::EF_MIPS_ARCH_2:
-    Features.AddFeature("mips2");
-    break;
-  case ELF::EF_MIPS_ARCH_3:
-    Features.AddFeature("mips3");
-    break;
-  case ELF::EF_MIPS_ARCH_4:
-    Features.AddFeature("mips4");
-    break;
-  case ELF::EF_MIPS_ARCH_5:
-    Features.AddFeature("mips5");
-    break;
-  case ELF::EF_MIPS_ARCH_32:
-    Features.AddFeature("mips32");
-    break;
-  case ELF::EF_MIPS_ARCH_64:
-    Features.AddFeature("mips64");
-    break;
-  case ELF::EF_MIPS_ARCH_32R2:
-    Features.AddFeature("mips32r2");
-    break;
-  case ELF::EF_MIPS_ARCH_64R2:
-    Features.AddFeature("mips64r2");
-    break;
-  case ELF::EF_MIPS_ARCH_32R6:
-    Features.AddFeature("mips32r6");
-    break;
-  case ELF::EF_MIPS_ARCH_64R6:
-    Features.AddFeature("mips64r6");
-    break;
-  default:
-    llvm_unreachable("Unknown EF_MIPS_ARCH value");
-  }
-
-  switch (PlatformFlags & ELF::EF_MIPS_MACH) {
-  case ELF::EF_MIPS_MACH_NONE:
-    // No feature associated with this value.
-    break;
-  case ELF::EF_MIPS_MACH_OCTEON:
-    Features.AddFeature("cnmips");
-    break;
-  default:
-    llvm_unreachable("Unknown EF_MIPS_ARCH value");
-  }
-
-  if (PlatformFlags & ELF::EF_MIPS_ARCH_ASE_M16)
-    Features.AddFeature("mips16");
-  if (PlatformFlags & ELF::EF_MIPS_MICROMIPS)
-    Features.AddFeature("micromips");
-
-  return Features;
-}
-
-SubtargetFeatures ELFObjectFileBase::getARMFeatures() const {
-  SubtargetFeatures Features;
-  ARMAttributeParser Attributes;
-  if (Error E = getBuildAttributes(Attributes)) {
-    consumeError(std::move(E));
-    return SubtargetFeatures();
-  }
-
-  // both ARMv7-M and R have to support thumb hardware div
-  bool isV7 = false;
-  Optional<unsigned> Attr =
-      Attributes.getAttributeValue(ARMBuildAttrs::CPU_arch);
-  if (Attr.hasValue())
-    isV7 = Attr.getValue() == ARMBuildAttrs::v7;
-
-  Attr = Attributes.getAttributeValue(ARMBuildAttrs::CPU_arch_profile);
-  if (Attr.hasValue()) {
-    switch (Attr.getValue()) {
-    case ARMBuildAttrs::ApplicationProfile:
-      Features.AddFeature("aclass");
-      break;
-    case ARMBuildAttrs::RealTimeProfile:
-      Features.AddFeature("rclass");
-      if (isV7)
-        Features.AddFeature("hwdiv");
-      break;
-    case ARMBuildAttrs::MicroControllerProfile:
-      Features.AddFeature("mclass");
-      if (isV7)
-        Features.AddFeature("hwdiv");
-      break;
-    }
-  }
-
-  Attr = Attributes.getAttributeValue(ARMBuildAttrs::THUMB_ISA_use);
-  if (Attr.hasValue()) {
-    switch (Attr.getValue()) {
-    default:
-      break;
-    case ARMBuildAttrs::Not_Allowed:
-      Features.AddFeature("thumb", false);
-      Features.AddFeature("thumb2", false);
-      break;
-    case ARMBuildAttrs::AllowThumb32:
-      Features.AddFeature("thumb2");
-      break;
-    }
-  }
-
-  Attr = Attributes.getAttributeValue(ARMBuildAttrs::FP_arch);
-  if (Attr.hasValue()) {
-    switch (Attr.getValue()) {
-    default:
-      break;
-    case ARMBuildAttrs::Not_Allowed:
-      Features.AddFeature("vfp2sp", false);
-      Features.AddFeature("vfp3d16sp", false);
-      Features.AddFeature("vfp4d16sp", false);
-      break;
-    case ARMBuildAttrs::AllowFPv2:
-      Features.AddFeature("vfp2");
-      break;
-    case ARMBuildAttrs::AllowFPv3A:
-    case ARMBuildAttrs::AllowFPv3B:
-      Features.AddFeature("vfp3");
-      break;
-    case ARMBuildAttrs::AllowFPv4A:
-    case ARMBuildAttrs::AllowFPv4B:
-      Features.AddFeature("vfp4");
-      break;
-    }
-  }
-
-  Attr = Attributes.getAttributeValue(ARMBuildAttrs::Advanced_SIMD_arch);
-  if (Attr.hasValue()) {
-    switch (Attr.getValue()) {
-    default:
-      break;
-    case ARMBuildAttrs::Not_Allowed:
-      Features.AddFeature("neon", false);
-      Features.AddFeature("fp16", false);
-      break;
-    case ARMBuildAttrs::AllowNeon:
-      Features.AddFeature("neon");
-      break;
-    case ARMBuildAttrs::AllowNeon2:
-      Features.AddFeature("neon");
-      Features.AddFeature("fp16");
-      break;
-    }
-  }
-
-  Attr = Attributes.getAttributeValue(ARMBuildAttrs::MVE_arch);
-  if (Attr.hasValue()) {
-    switch (Attr.getValue()) {
-    default:
-      break;
-    case ARMBuildAttrs::Not_Allowed:
-      Features.AddFeature("mve", false);
-      Features.AddFeature("mve.fp", false);
-      break;
-    case ARMBuildAttrs::AllowMVEInteger:
-      Features.AddFeature("mve.fp", false);
-      Features.AddFeature("mve");
-      break;
-    case ARMBuildAttrs::AllowMVEIntegerAndFloat:
-      Features.AddFeature("mve.fp");
-      break;
-    }
-  }
-
-  Attr = Attributes.getAttributeValue(ARMBuildAttrs::DIV_use);
-  if (Attr.hasValue()) {
-    switch (Attr.getValue()) {
-    default:
-      break;
-    case ARMBuildAttrs::DisallowDIV:
-      Features.AddFeature("hwdiv", false);
-      Features.AddFeature("hwdiv-arm", false);
-      break;
-    case ARMBuildAttrs::AllowDIVExt:
-      Features.AddFeature("hwdiv");
-      Features.AddFeature("hwdiv-arm");
-      break;
-    }
-  }
-
-  return Features;
-}
-
-SubtargetFeatures ELFObjectFileBase::getRISCVFeatures() const {
-  SubtargetFeatures Features;
-  unsigned PlatformFlags = getPlatformFlags();
-
-  if (PlatformFlags & ELF::EF_RISCV_RVC) {
-    Features.AddFeature("c");
-  }
-
-  // Add features according to the ELF attribute section.
-  // If there are any unrecognized features, ignore them.
-  RISCVAttributeParser Attributes;
-  if (Error E = getBuildAttributes(Attributes)) {
-    // TODO Propagate Error.
-    consumeError(std::move(E));
-    return Features; // Keep "c" feature if there is one in PlatformFlags.
-  }
-
-  Optional<StringRef> Attr = Attributes.getAttributeString(RISCVAttrs::ARCH);
-  if (Attr.hasValue()) {
-    // The Arch pattern is [rv32|rv64][i|e]version(_[m|a|f|d|c]version)*
-    // Version string pattern is (major)p(minor). Major and minor are optional.
-    // For example, a version number could be 2p0, 2, or p92.
-    StringRef Arch = Attr.getValue();
-    if (Arch.consume_front("rv32"))
-      Features.AddFeature("64bit", false);
-    else if (Arch.consume_front("rv64"))
-      Features.AddFeature("64bit");
-
-    while (!Arch.empty()) {
-      switch (Arch[0]) {
-      default:
-        break; // Ignore unexpected features.
-      case 'i':
-        Features.AddFeature("e", false);
-        break;
-      case 'd':
-        Features.AddFeature("f"); // D-ext will imply F-ext.
-        LLVM_FALLTHROUGH;
-      case 'e':
-      case 'm':
-      case 'a':
-      case 'f':
-      case 'c':
-        Features.AddFeature(Arch.take_front());
-        break;
-      }
-
-      // FIXME: Handle version numbers.
-      Arch = Arch.drop_until([](char c) { return c == '_' || c == '\0'; });
-      Arch = Arch.drop_while([](char c) { return c == '_'; });
-    }
-  }
-
-  return Features;
-}
-
-SubtargetFeatures ELFObjectFileBase::getFeatures() const {
-  switch (getEMachine()) {
-  case ELF::EM_MIPS:
-    return getMIPSFeatures();
-  case ELF::EM_ARM:
-    return getARMFeatures();
-  case ELF::EM_RISCV:
-    return getRISCVFeatures();
-  default:
-    return SubtargetFeatures();
-  }
-}
-
-Optional<StringRef> ELFObjectFileBase::tryGetCPUName() const {
-  switch (getEMachine()) {
-  case ELF::EM_AMDGPU:
-    return getAMDGPUCPUName();
-  default:
-    return None;
-  }
-}
-
-StringRef ELFObjectFileBase::getAMDGPUCPUName() const {
-  assert(getEMachine() == ELF::EM_AMDGPU);
-  unsigned CPU = getPlatformFlags() & ELF::EF_AMDGPU_MACH;
-
-  switch (CPU) {
-  // Radeon HD 2000/3000 Series (R600).
-  case ELF::EF_AMDGPU_MACH_R600_R600:
-    return "r600";
-  case ELF::EF_AMDGPU_MACH_R600_R630:
-    return "r630";
-  case ELF::EF_AMDGPU_MACH_R600_RS880:
-    return "rs880";
-  case ELF::EF_AMDGPU_MACH_R600_RV670:
-    return "rv670";
-
-  // Radeon HD 4000 Series (R700).
-  case ELF::EF_AMDGPU_MACH_R600_RV710:
-    return "rv710";
-  case ELF::EF_AMDGPU_MACH_R600_RV730:
-    return "rv730";
-  case ELF::EF_AMDGPU_MACH_R600_RV770:
-    return "rv770";
-
-  // Radeon HD 5000 Series (Evergreen).
-  case ELF::EF_AMDGPU_MACH_R600_CEDAR:
-    return "cedar";
-  case ELF::EF_AMDGPU_MACH_R600_CYPRESS:
-    return "cypress";
-  case ELF::EF_AMDGPU_MACH_R600_JUNIPER:
-    return "juniper";
-  case ELF::EF_AMDGPU_MACH_R600_REDWOOD:
-    return "redwood";
-  case ELF::EF_AMDGPU_MACH_R600_SUMO:
-    return "sumo";
-
-  // Radeon HD 6000 Series (Northern Islands).
-  case ELF::EF_AMDGPU_MACH_R600_BARTS:
-    return "barts";
-  case ELF::EF_AMDGPU_MACH_R600_CAICOS:
-    return "caicos";
-  case ELF::EF_AMDGPU_MACH_R600_CAYMAN:
-    return "cayman";
-  case ELF::EF_AMDGPU_MACH_R600_TURKS:
-    return "turks";
-
-  // AMDGCN GFX6.
-  case ELF::EF_AMDGPU_MACH_AMDGCN_GFX600:
-    return "gfx600";
-  case ELF::EF_AMDGPU_MACH_AMDGCN_GFX601:
-    return "gfx601";
-  case ELF::EF_AMDGPU_MACH_AMDGCN_GFX602:
-    return "gfx602";
-
-  // AMDGCN GFX7.
-  case ELF::EF_AMDGPU_MACH_AMDGCN_GFX700:
-    return "gfx700";
-  case ELF::EF_AMDGPU_MACH_AMDGCN_GFX701:
-    return "gfx701";
-  case ELF::EF_AMDGPU_MACH_AMDGCN_GFX702:
-    return "gfx702";
-  case ELF::EF_AMDGPU_MACH_AMDGCN_GFX703:
-    return "gfx703";
-  case ELF::EF_AMDGPU_MACH_AMDGCN_GFX704:
-    return "gfx704";
-  case ELF::EF_AMDGPU_MACH_AMDGCN_GFX705:
-    return "gfx705";
-
-  // AMDGCN GFX8.
-  case ELF::EF_AMDGPU_MACH_AMDGCN_GFX801:
-    return "gfx801";
-  case ELF::EF_AMDGPU_MACH_AMDGCN_GFX802:
-    return "gfx802";
-  case ELF::EF_AMDGPU_MACH_AMDGCN_GFX803:
-    return "gfx803";
-  case ELF::EF_AMDGPU_MACH_AMDGCN_GFX805:
-    return "gfx805";
-  case ELF::EF_AMDGPU_MACH_AMDGCN_GFX810:
-    return "gfx810";
-
-  // AMDGCN GFX9.
-  case ELF::EF_AMDGPU_MACH_AMDGCN_GFX900:
-    return "gfx900";
-  case ELF::EF_AMDGPU_MACH_AMDGCN_GFX902:
-    return "gfx902";
-  case ELF::EF_AMDGPU_MACH_AMDGCN_GFX904:
-    return "gfx904";
-  case ELF::EF_AMDGPU_MACH_AMDGCN_GFX906:
-    return "gfx906";
-  case ELF::EF_AMDGPU_MACH_AMDGCN_GFX908:
-    return "gfx908";
-  case ELF::EF_AMDGPU_MACH_AMDGCN_GFX909:
-    return "gfx909";
-  case ELF::EF_AMDGPU_MACH_AMDGCN_GFX90A:
-    return "gfx90a";
-  case ELF::EF_AMDGPU_MACH_AMDGCN_GFX90C:
-    return "gfx90c";
-
-  // AMDGCN GFX10.
-  case ELF::EF_AMDGPU_MACH_AMDGCN_GFX1010:
-    return "gfx1010";
-  case ELF::EF_AMDGPU_MACH_AMDGCN_GFX1011:
-    return "gfx1011";
-  case ELF::EF_AMDGPU_MACH_AMDGCN_GFX1012:
-    return "gfx1012";
-  case ELF::EF_AMDGPU_MACH_AMDGCN_GFX1013:
-    return "gfx1013";
-  case ELF::EF_AMDGPU_MACH_AMDGCN_GFX1030:
-    return "gfx1030";
-  case ELF::EF_AMDGPU_MACH_AMDGCN_GFX1031:
-    return "gfx1031";
-  case ELF::EF_AMDGPU_MACH_AMDGCN_GFX1032:
-    return "gfx1032";
-  case ELF::EF_AMDGPU_MACH_AMDGCN_GFX1033:
-    return "gfx1033";
-  case ELF::EF_AMDGPU_MACH_AMDGCN_GFX1034:
-    return "gfx1034";
-  case ELF::EF_AMDGPU_MACH_AMDGCN_GFX1035:
-    return "gfx1035";
-  default:
-    llvm_unreachable("Unknown EF_AMDGPU_MACH value");
-  }
-}
-
-// FIXME Encode from a tablegen description or target parser.
-void ELFObjectFileBase::setARMSubArch(Triple &TheTriple) const {
-  if (TheTriple.getSubArch() != Triple::NoSubArch)
-    return;
-
-  ARMAttributeParser Attributes;
-  if (Error E = getBuildAttributes(Attributes)) {
-    // TODO Propagate Error.
-    consumeError(std::move(E));
-    return;
-  }
-
-  std::string Triple;
-  // Default to ARM, but use the triple if it's been set.
-  if (TheTriple.isThumb())
-    Triple = "thumb";
-  else
-    Triple = "arm";
-
-  Optional<unsigned> Attr =
-      Attributes.getAttributeValue(ARMBuildAttrs::CPU_arch);
-  if (Attr.hasValue()) {
-    switch (Attr.getValue()) {
-    case ARMBuildAttrs::v4:
-      Triple += "v4";
-      break;
-    case ARMBuildAttrs::v4T:
-      Triple += "v4t";
-      break;
-    case ARMBuildAttrs::v5T:
-      Triple += "v5t";
-      break;
-    case ARMBuildAttrs::v5TE:
-      Triple += "v5te";
-      break;
-    case ARMBuildAttrs::v5TEJ:
-      Triple += "v5tej";
-      break;
-    case ARMBuildAttrs::v6:
-      Triple += "v6";
-      break;
-    case ARMBuildAttrs::v6KZ:
-      Triple += "v6kz";
-      break;
-    case ARMBuildAttrs::v6T2:
-      Triple += "v6t2";
-      break;
-    case ARMBuildAttrs::v6K:
-      Triple += "v6k";
-      break;
-    case ARMBuildAttrs::v7: {
-      Optional<unsigned> ArchProfileAttr =
-          Attributes.getAttributeValue(ARMBuildAttrs::CPU_arch_profile);
-      if (ArchProfileAttr.hasValue() &&
-          ArchProfileAttr.getValue() == ARMBuildAttrs::MicroControllerProfile)
-        Triple += "v7m";
-      else
-        Triple += "v7";
-      break;
-    }
-    case ARMBuildAttrs::v6_M:
-      Triple += "v6m";
-      break;
-    case ARMBuildAttrs::v6S_M:
-      Triple += "v6sm";
-      break;
-    case ARMBuildAttrs::v7E_M:
-      Triple += "v7em";
-      break;
-    case ARMBuildAttrs::v8_A:
-      Triple += "v8a";
-      break;
-    case ARMBuildAttrs::v8_R:
-      Triple += "v8r";
-      break;
-    case ARMBuildAttrs::v8_M_Base:
-      Triple += "v8m.base";
-      break;
-    case ARMBuildAttrs::v8_M_Main:
-      Triple += "v8m.main";
-      break;
-    case ARMBuildAttrs::v8_1_M_Main:
-      Triple += "v8.1m.main";
-      break;
-    }
-  }
-  if (!isLittleEndian())
-    Triple += "eb";
-
-  TheTriple.setArchName(Triple);
-}
-
-std::vector<std::pair<Optional<DataRefImpl>, uint64_t>>
-ELFObjectFileBase::getPltAddresses() const {
-  std::string Err;
-  const auto Triple = makeTriple();
-  const auto *T = TargetRegistry::lookupTarget(Triple.str(), Err);
-  if (!T)
-    return {};
-  uint64_t JumpSlotReloc = 0;
-  switch (Triple.getArch()) {
-    case Triple::x86:
-      JumpSlotReloc = ELF::R_386_JUMP_SLOT;
-      break;
-    case Triple::x86_64:
-      JumpSlotReloc = ELF::R_X86_64_JUMP_SLOT;
-      break;
-    case Triple::aarch64:
-    case Triple::aarch64_be:
-      JumpSlotReloc = ELF::R_AARCH64_JUMP_SLOT;
-      break;
-    default:
-      return {};
-  }
-  std::unique_ptr<const MCInstrInfo> MII(T->createMCInstrInfo());
-  std::unique_ptr<const MCInstrAnalysis> MIA(
-      T->createMCInstrAnalysis(MII.get()));
-  if (!MIA)
-    return {};
-  Optional<SectionRef> Plt = None, RelaPlt = None, GotPlt = None;
-  for (const SectionRef &Section : sections()) {
-    Expected<StringRef> NameOrErr = Section.getName();
-    if (!NameOrErr) {
-      consumeError(NameOrErr.takeError());
-      continue;
-    }
-    StringRef Name = *NameOrErr;
-
-    if (Name == ".plt")
-      Plt = Section;
-    else if (Name == ".rela.plt" || Name == ".rel.plt")
-      RelaPlt = Section;
-    else if (Name == ".got.plt")
-      GotPlt = Section;
-  }
-  if (!Plt || !RelaPlt || !GotPlt)
-    return {};
-  Expected<StringRef> PltContents = Plt->getContents();
-  if (!PltContents) {
-    consumeError(PltContents.takeError());
-    return {};
-  }
-  auto PltEntries = MIA->findPltEntries(Plt->getAddress(),
-                                        arrayRefFromStringRef(*PltContents),
-                                        GotPlt->getAddress(), Triple);
-  // Build a map from GOT entry virtual address to PLT entry virtual address.
-  DenseMap<uint64_t, uint64_t> GotToPlt;
-  for (const auto &Entry : PltEntries)
-    GotToPlt.insert(std::make_pair(Entry.second, Entry.first));
-  // Find the relocations in the dynamic relocation table that point to
-  // locations in the GOT for which we know the corresponding PLT entry.
-  std::vector<std::pair<Optional<DataRefImpl>, uint64_t>> Result;
-  for (const auto &Relocation : RelaPlt->relocations()) {
-    if (Relocation.getType() != JumpSlotReloc)
-      continue;
-    auto PltEntryIter = GotToPlt.find(Relocation.getOffset());
-    if (PltEntryIter != GotToPlt.end()) {
-      symbol_iterator Sym = Relocation.getSymbol();
-      if (Sym == symbol_end())
-        Result.emplace_back(None, PltEntryIter->second);
-      else
-        Result.emplace_back(Sym->getRawDataRefImpl(), PltEntryIter->second);
-    }
-  }
-  return Result;
-}
-
-template <class ELFT>
-static Expected<std::vector<VersionEntry>>
-readDynsymVersionsImpl(const ELFFile<ELFT> &EF,
-                       ELFObjectFileBase::elf_symbol_iterator_range Symbols) {
-  using Elf_Shdr = typename ELFT::Shdr;
-  const Elf_Shdr *VerSec = nullptr;
-  const Elf_Shdr *VerNeedSec = nullptr;
-  const Elf_Shdr *VerDefSec = nullptr;
-  // The user should ensure sections() can't fail here.
-  for (const Elf_Shdr &Sec : cantFail(EF.sections())) {
-    if (Sec.sh_type == ELF::SHT_GNU_versym)
-      VerSec = &Sec;
-    else if (Sec.sh_type == ELF::SHT_GNU_verdef)
-      VerDefSec = &Sec;
-    else if (Sec.sh_type == ELF::SHT_GNU_verneed)
-      VerNeedSec = &Sec;
-  }
-  if (!VerSec)
-    return std::vector<VersionEntry>();
-
-  Expected<SmallVector<Optional<VersionEntry>, 0>> MapOrErr =
-      EF.loadVersionMap(VerNeedSec, VerDefSec);
-  if (!MapOrErr)
-    return MapOrErr.takeError();
-
-  std::vector<VersionEntry> Ret;
-  size_t I = 0;
-  for (const ELFSymbolRef &Sym : Symbols) {
-    ++I;
-    Expected<const typename ELFT::Versym *> VerEntryOrErr =
-        EF.template getEntry<typename ELFT::Versym>(*VerSec, I);
-    if (!VerEntryOrErr)
-      return createError("unable to read an entry with index " + Twine(I) +
-                         " from " + describe(EF, *VerSec) + ": " +
-                         toString(VerEntryOrErr.takeError()));
-
-    Expected<uint32_t> FlagsOrErr = Sym.getFlags();
-    if (!FlagsOrErr)
-      return createError("unable to read flags for symbol with index " +
-                         Twine(I) + ": " + toString(FlagsOrErr.takeError()));
-
-    bool IsDefault;
-    Expected<StringRef> VerOrErr = EF.getSymbolVersionByIndex(
-        (*VerEntryOrErr)->vs_index, IsDefault, *MapOrErr,
-        (*FlagsOrErr) & SymbolRef::SF_Undefined);
-    if (!VerOrErr)
-      return createError("unable to get a version for entry " + Twine(I) +
-                         " of " + describe(EF, *VerSec) + ": " +
-                         toString(VerOrErr.takeError()));
-
-    Ret.push_back({(*VerOrErr).str(), IsDefault});
-  }
-
-  return Ret;
-}
-
-Expected<std::vector<VersionEntry>>
-ELFObjectFileBase::readDynsymVersions() const {
-  elf_symbol_iterator_range Symbols = getDynamicSymbolIterators();
-  if (const auto *Obj = dyn_cast<ELF32LEObjectFile>(this))
-    return readDynsymVersionsImpl(Obj->getELFFile(), Symbols);
-  if (const auto *Obj = dyn_cast<ELF32BEObjectFile>(this))
-    return readDynsymVersionsImpl(Obj->getELFFile(), Symbols);
-  if (const auto *Obj = dyn_cast<ELF64LEObjectFile>(this))
-    return readDynsymVersionsImpl(Obj->getELFFile(), Symbols);
-  return readDynsymVersionsImpl(cast<ELF64BEObjectFile>(this)->getELFFile(),
-                                Symbols);
-}