[ELF] - Combine LinkerScriptBase and LinkerScript<ELFT>

[grimar]

Summary

Patch removes templated linkerscript class.

Unfortunately that required 2 additional static methods
findSymbol() and addRegularSymbol() because code
depends on Symtab<ELFT>::X

But that seems enough. I wonder if it is possible to avoid though.

[grimar]

• Rebased.

[grimar]

I will update it later after landing another detemplating patches.

[grimar]

• Updated.

[grimar]

ELF/LinkerScript.h

311

Also LinkerScriptBase should probably be renamed to LinkerScript, but I did not do that now to reduce amount of changes.

[ruiu]

LGTM

ELF/LinkerScript.cpp

1749–1750

Unrelated format change?

ELF/InputSection.cpp

if (Body.Type == STT_SECTION) {
       // hopefully creates a frame that is ignored at runtime.
       SectionBase *Section = cast<DefinedRegular>(Body).Section;
       if (Section == &InputSection::Discarded) {
         P->setSymbolAndType(0, 0, false);
         continue;
       }
 
       if (Config->isRela()) {
-        P->r_addend += Body.getVA<ELFT>() - Section->getOutputSection()->Addr;
+        P->r_addend += Body.getVA() - Section->getOutputSection()->Addr;
       } else if (Config->Relocatable) {
         const uint8_t *BufLoc = RelocatedSection->Data.begin() + Rel.r_offset;
         RelocatedSection->Relocations.push_back(
             {R_ABS, Type, Rel.r_offset, Target->getImplicitAddend(BufLoc, Type),
              &Body});
       }
     }
 
getRelocTargetVA(uint32_t Type, int64_t A, typename ELFT::uint P,
   case R_TLSGD_PC:
     return In<ELFT>::Got->getGlobalDynAddr(Body) + A - P;
   case R_TLSDESC:
     return In<ELFT>::Got->getGlobalDynAddr(Body) + A;
   case R_TLSDESC_PAGE:
     return getAArch64Page(In<ELFT>::Got->getGlobalDynAddr(Body) + A) -
            getAArch64Page(P);
   case R_PLT:
-    return Body.getPltVA<ELFT>() + A;
+    return Body.getPltVA() + A;
   case R_PLT_PC:
   case R_PPC_PLT_OPD:
-    return Body.getPltVA<ELFT>() + A - P;
+    return Body.getPltVA() + A - P;
   case R_SIZE:
     return Body.getSize<ELFT>() + A;
   case R_GOTREL:
-    return Body.getVA<ELFT>(A) - In<ELFT>::Got->getVA();
+    return Body.getVA(A) - In<ELFT>::Got->getVA();
   case R_GOTREL_FROM_END:
-    return Body.getVA<ELFT>(A) - In<ELFT>::Got->getVA() -
-           In<ELFT>::Got->getSize();
+    return Body.getVA(A) - In<ELFT>::Got->getVA() - In<ELFT>::Got->getSize();
   case R_RELAX_TLS_GD_TO_IE_END:
   case R_GOT_FROM_END:
     return Body.getGotOffset<ELFT>() + A - In<ELFT>::Got->getSize();
   case R_RELAX_TLS_GD_TO_IE_ABS:
   case R_GOT:
     return Body.getGotVA<ELFT>() + A;
   case R_RELAX_TLS_GD_TO_IE_PAGE_PC:
   case R_GOT_PAGE_PC:
case R_TLS:
     // block, i.e. gets a value of zero. If we pass --gc-sections to
     // lld and .tbss is not referenced, it gets reclaimed and we don't
     // create a TLS program header. Therefore, we resolve this
     // statically to zero.
     if (Body.isTls() && (Body.isLazy() || Body.isUndefined()) &&
         Body.symbol()->isWeak())
       return 0;
     if (Target->TcbSize)
-      return Body.getVA<ELFT>(A) +
-             alignTo(Target->TcbSize, Out::TlsPhdr->p_align);
-    return Body.getVA<ELFT>(A) - Out::TlsPhdr->p_memsz;
+      return Body.getVA(A) + alignTo(Target->TcbSize, Out::TlsPhdr->p_align);
+    return Body.getVA(A) - Out::TlsPhdr->p_memsz;
   case R_RELAX_TLS_GD_TO_LE_NEG:
   case R_NEG_TLS:
-    return Out::TlsPhdr->p_memsz - Body.getVA<ELFT>(A);
+    return Out::TlsPhdr->p_memsz - Body.getVA(A);
   case R_ABS:
   case R_RELAX_GOT_PC_NOPIC:
-    return Body.getVA<ELFT>(A);
+    return Body.getVA(A);
   case R_GOT_OFF:
     return Body.getGotOffset<ELFT>() + A;
   case R_MIPS_GOT_LOCAL_PAGE:
     // If relocation against MIPS local symbol requires GOT entry, this entry
     // should be initialized by 'page address'. This address is high 16-bits
     // of sum the symbol's value and the addend.
     return In<ELFT>::MipsGot->getVA() +
            In<ELFT>::MipsGot->getPageEntryOffset(Body, A) -
            In<ELFT>::MipsGot->getGp();
   case R_MIPS_GOT_OFF:
   case R_MIPS_GOT_OFF32:
     // In case of MIPS if a GOT relocation has non-zero addend this addend
     // should be applied to the GOT entry content not to the GOT entry offset.
     // That is why we use separate expression type.
     return In<ELFT>::MipsGot->getVA() +
            In<ELFT>::MipsGot->getBodyEntryOffset(Body, A) -
            In<ELFT>::MipsGot->getGp();
   case R_MIPS_GOTREL:
-    return Body.getVA<ELFT>(A) - In<ELFT>::MipsGot->getGp();
+    return Body.getVA(A) - In<ELFT>::MipsGot->getGp();
   case R_MIPS_TLSGD:
     return In<ELFT>::MipsGot->getVA() + In<ELFT>::MipsGot->getTlsOffset() +
            In<ELFT>::MipsGot->getGlobalDynOffset(Body) -
            In<ELFT>::MipsGot->getGp();
   case R_MIPS_TLSLD:
     return In<ELFT>::MipsGot->getVA() + In<ELFT>::MipsGot->getTlsOffset() +
            In<ELFT>::MipsGot->getTlsIndexOff() - In<ELFT>::MipsGot->getGp();
   case R_PPC_OPD: {
-    uint64_t SymVA = Body.getVA<ELFT>(A);
+    uint64_t SymVA = Body.getVA(A);
     // If we have an undefined weak symbol, we might get here with a symbol
     // address of zero. That could overflow, but the code must be unreachable,
     // so don't bother doing anything at all.
     if (!SymVA)
       return 0;
     if (Out::Opd) {
       // If this is a local call, and we currently have the address of a
       // function-descriptor, get the underlying code address instead.
if (Body.isUndefined() && !Body.isLocal() && Body.symbol()->isWeak()) {
       // On ARM and AArch64 a branch to an undefined weak resolves to the
       // next instruction, otherwise the place.
       if (Config->EMachine == EM_ARM)
         return getARMUndefinedRelativeWeakVA(Type, A, P);
       if (Config->EMachine == EM_AARCH64)
         return getAArch64UndefinedRelativeWeakVA(Type, A, P);
     }
   case R_RELAX_GOT_PC:
-    return Body.getVA<ELFT>(A) - P;
+    return Body.getVA(A) - P;
   case R_PLT_PAGE_PC:
   case R_PAGE_PC:
     if (Body.isUndefined() && !Body.isLocal() && Body.symbol()->isWeak())
       return getAArch64Page(A);
-    return getAArch64Page(Body.getVA<ELFT>(A)) - getAArch64Page(P);
+    return getAArch64Page(Body.getVA(A)) - getAArch64Page(P);
   }
   llvm_unreachable("Invalid expression");
 }
 
 // This function applies relocations to sections without SHF_ALLOC bit.
 // Such sections are never mapped to memory at runtime. Debug sections are
 // an example. Relocations in non-alloc sections are much easier to
 // handle than in allocated sections because it will never need complex

ELF/LinkerScript.h

protected:
   llvm::DenseSet<InputSectionBase *> AlreadyOutputIS;
 
 public:
   bool hasPhdrsCommands() { return !Opt.PhdrsCommands.empty(); }
   uint64_t getDot() { return Dot; }
   OutputSection *getOutputSection(const Twine &Loc, StringRef S);
   uint64_t getOutputSectionSize(StringRef S);
 
-  virtual uint64_t getSymbolValue(const Twine &Loc, StringRef S) = 0;
-  virtual bool isDefined(StringRef S) = 0;
-  virtual bool isAbsolute(StringRef S) = 0;
-  virtual OutputSection *getSymbolSection(StringRef S) = 0;
-
+  uint64_t getSymbolValue(const Twine &Loc, StringRef S);
+  bool isDefined(StringRef S);
+  bool isAbsolute(StringRef S);
+  OutputSection *getSymbolSection(StringRef S);
+  void discard(ArrayRef<InputSectionBase *> V);
   std::vector<OutputSection *> *OutputSections;
   void addOrphanSections(OutputSectionFactory &Factory);
   void removeEmptyCommands();
   void adjustSectionsBeforeSorting();
   void adjustSectionsAfterSorting();
 
   std::vector<PhdrEntry> createPhdrs();
   bool ignoreInterpSection();

 // This is a runner of the linker script.
 template <class ELFT> class LinkerScript final : public LinkerScriptBase {
 public:
   LinkerScript();
   ~LinkerScript();
 
   void writeDataBytes(StringRef Name, uint8_t *Buf);
   void addSymbol(SymbolAssignment *Cmd);
-  void discard(ArrayRef<InputSectionBase *> V);
   void processCommands(OutputSectionFactory &Factory);
-
-  uint64_t getSymbolValue(const Twine &Loc, StringRef S) override;
-  bool isDefined(StringRef S) override;
-  bool isAbsolute(StringRef S) override;
-  OutputSection *getSymbolSection(StringRef S) override;
 };
 
 // Variable template is a C++14 feature, so we can't template
 // a global variable. Use a struct to workaround.
 template <class ELFT> struct Script { static LinkerScript<ELFT> *X; };
 template <class ELFT> LinkerScript<ELFT> *Script<ELFT>::X;
 
 extern LinkerScriptBase *ScriptBase;
 
 } // end namespace elf
 } // end namespace lld
 
 #endif // LLD_ELF_LINKER_SCRIPT_H

ELF/LinkerScript.cpp

 
 template <class ELFT>
 void LinkerScript<ELFT>::addSymbol(SymbolAssignment *Cmd) {
   if (Cmd->Name == ".")
     return;
 
   // If a symbol was in PROVIDE(), we need to define it only when
   // it is a referenced undefined symbol.
-  SymbolBody *B = Symtab<ELFT>::X->find(Cmd->Name);
+  SymbolBody *B = findSymbol(Cmd->Name);
   if (Cmd->Provide && (!B || B->isDefined()))
     return;
 
   Cmd->Sym = addRegular<ELFT>(Cmd);
 }
 
 bool SymbolAssignment::classof(const BaseCommand *C) {
   return C->Kind == AssignmentKind;
if (Pat.SortOuter != SortSectionPolicy::None) {
         sortSections(Begin, End, Config->SortSection);
       else
         sortSections(Begin, End, Pat.SortInner);
       sortSections(Begin, End, Pat.SortOuter);
     }
   }
 }
 
-template <class ELFT>
-void LinkerScript<ELFT>::discard(ArrayRef<InputSectionBase *> V) {
+void LinkerScriptBase::discard(ArrayRef<InputSectionBase *> V) {
   for (InputSectionBase *S : V) {
     S->Live = false;
-    if (S == In<ELFT>::ShStrTab)
+    if (S == InX::ShStrTab)
       error("discarding .shstrtab section is not allowed");
     discard(S->DependentSections);
   }
 }
 
 std::vector<InputSectionBase *>
 LinkerScriptBase::createInputSectionList(OutputSectionCommand &OutCmd) {
   std::vector<InputSectionBase *> Ret;

 int LinkerScriptBase::getSectionIndex(StringRef Name) {
   for (int I = 0, E = Opt.Commands.size(); I != E; ++I)
     if (auto *Cmd = dyn_cast<OutputSectionCommand>(Opt.Commands[I].get()))
       if (Cmd->Name == Name)
         return I;
   return INT_MAX;
 }
 
-template <class ELFT>
-uint64_t LinkerScript<ELFT>::getSymbolValue(const Twine &Loc, StringRef S) {
+static SymbolBody *findSymbol(StringRef S) {
+  switch (Config->EKind) {
+  case ELF32LEKind:
+    return Symtab<ELF32LE>::X->find(S);
+  case ELF32BEKind:
+    return Symtab<ELF32BE>::X->find(S);
+  case ELF64LEKind:
+    return Symtab<ELF64LE>::X->find(S);
+  case ELF64BEKind:
+    return Symtab<ELF64BE>::X->find(S);
+  default:
+    llvm_unreachable("unknown Config->EKind");
+  }
+}
+
+uint64_t LinkerScriptBase::getSymbolValue(const Twine &Loc, StringRef S) {
   if (S == ".")
     return Dot;
-  if (SymbolBody *B = Symtab<ELFT>::X->find(S))
-    return B->getVA<ELFT>();
+  if (SymbolBody *B = findSymbol(S))
+    return B->getVA();
   error(Loc + ": symbol not found: " + S);
   return 0;
 }
 
-template <class ELFT> bool LinkerScript<ELFT>::isDefined(StringRef S) {
-  return Symtab<ELFT>::X->find(S) != nullptr;
+bool LinkerScriptBase::isDefined(StringRef S) {
+  return findSymbol(S) != nullptr;
 }
 
-template <class ELFT> bool LinkerScript<ELFT>::isAbsolute(StringRef S) {
+bool LinkerScriptBase::isAbsolute(StringRef S) {
   if (S == ".")
     return false;
-  SymbolBody *Sym = Symtab<ELFT>::X->find(S);
+  SymbolBody *Sym = findSymbol(S);
   auto *DR = dyn_cast_or_null<DefinedRegular>(Sym);
   return DR && !DR->Section;
 }
 
 // Gets section symbol belongs to. Symbol "." doesn't belong to any
 // specific section but isn't absolute at the same time, so we try
 // to find suitable section for it as well.
-template <class ELFT>
-OutputSection *LinkerScript<ELFT>::getSymbolSection(StringRef S) {
-  if (SymbolBody *Sym = Symtab<ELFT>::X->find(S))
-    return Sym->getOutputSection<ELFT>();
+OutputSection *LinkerScriptBase::getSymbolSection(StringRef S) {
+  if (SymbolBody *Sym = findSymbol(S))
+    return Sym->getOutputSection();
   return CurOutSec;
 }
 
 // Returns indices of ELF headers containing specific section, identified
 // by Name. Each index is a zero based number of ELF header listed within
 // PHDRS {} script block.
 std::vector<size_t> LinkerScriptBase::getPhdrIndices(StringRef SectionName) {
   for (const std::unique_ptr<BaseCommand> &Base : Opt.Commands) {
Expr ScriptParser::readPrimary() {
   // Built-in functions are parsed here.
   // https://sourceware.org/binutils/docs/ld/Builtin-Functions.html.
   if (Tok == "ABSOLUTE") {
     Expr E = readParenExpr();
     E.IsAbsolute = [] { return true; };
     return E;
   }
   if (Tok == "ADDR") {
     StringRef Name = readParenLiteral();
     return {[=] { return ScriptBase->getOutputSection(Location, Name)->Addr; },
             [=] { return false; },
             [=] { return ScriptBase->getOutputSection(Location, Name); }};
   }
   if (Tok == "LOADADDR") {
     StringRef Name = readParenLiteral();
     return
         [=] { return ScriptBase->getOutputSection(Location, Name)->getLMA(); };
   }

ELF/MapFile.cpp

static void writeInputSection(raw_fd_ostream &OS, const InputSection *IS,
   for (SymbolBody *Sym : File->getSymbols()) {
     auto *DR = dyn_cast<DefinedRegular>(Sym);
     if (!DR)
       continue;
     if (DR->Section != IS)
       continue;
     if (DR->isSection())
       continue;
-    writeSymbolLine(OS, Width, Sym->getVA<ELFT>(), Sym->getSize<ELFT>(),
+    writeSymbolLine(OS, Width, Sym->getVA(), Sym->getSize<ELFT>(),
                     toString(*Sym));
     OS << '\n';
   }
 }
 
 template <class ELFT>
 static void writeMapFile2(raw_fd_ostream &OS,
                           ArrayRef<OutputSection *> OutputSections) {

ELF/Relocations.cpp

for (auto I = Rels.begin(), E = Rels.end(); I != E; ++I) {
     // also require us to create a got or plt entry.
 
     // If a relocation needs PLT, we create a PLT and a GOT slot for the symbol.
     if (needsPlt(Expr)) {
       if (Body.isInPlt())
         continue;
 
       if (Body.isGnuIFunc() && !Preemptible) {
-        In<ELFT>::Iplt->addEntry(Body);
+        In<ELFT>::Iplt->addEntry<ELFT>(Body);
         In<ELFT>::IgotPlt->addEntry(Body);
         In<ELFT>::RelaIplt->addReloc({Target->IRelativeRel, In<ELFT>::IgotPlt,
-                                      Body.getGotPltOffset<ELFT>(),
-                                      !Preemptible, &Body, 0});
+                                      Body.getGotPltOffset(), !Preemptible,
+                                      &Body, 0});
       } else {
-        In<ELFT>::Plt->addEntry(Body);
+        In<ELFT>::Plt->addEntry<ELFT>(Body);
         In<ELFT>::GotPlt->addEntry(Body);
         In<ELFT>::RelaPlt->addReloc({Target->PltRel, In<ELFT>::GotPlt,
-                                     Body.getGotPltOffset<ELFT>(), !Preemptible,
+                                     Body.getGotPltOffset(), !Preemptible,
                                      &Body, 0});
       }
       continue;
     }
 
     if (refersToGotEntry(Expr)) {
       if (Config->EMachine == EM_MIPS) {
         // MIPS ABI has special rules to process GOT entries and doesn't

ELF/Symbols.h

public:
   bool isPreemptible() const;
   StringRef getName() const { return Name; }
   uint8_t getVisibility() const { return StOther & 0x3; }
   void parseSymbolVersion();
 
   bool isInGot() const { return GotIndex != -1U; }
   bool isInPlt() const { return PltIndex != -1U; }
 
-  template <class ELFT> typename ELFT::uint getVA(int64_t Addend = 0) const;
+  uint64_t getVA(int64_t Addend = 0) const;
 
   template <class ELFT> typename ELFT::uint getGotOffset() const;
   template <class ELFT> typename ELFT::uint getGotVA() const;
-  template <class ELFT> typename ELFT::uint getGotPltOffset() const;
-  template <class ELFT> typename ELFT::uint getGotPltVA() const;
-  template <class ELFT> typename ELFT::uint getPltVA() const;
+  unsigned getGotPltOffset() const;
+  uint64_t getGotPltVA() const;
+  uint64_t getPltVA() const;
   template <class ELFT> typename ELFT::uint getSize() const;
-  template <class ELFT> OutputSection *getOutputSection() const;
+  OutputSection *getOutputSection() const;
 
   // The file from which this symbol was created.
   InputFile *File = nullptr;
 
   uint32_t DynsymIndex = 0;
   uint32_t GotIndex = -1;
   uint32_t GotPltIndex = -1;
   uint32_t PltIndex = -1;

ELF/Symbols.cpp

 DefinedRegular *ElfSym::Edata;
 DefinedRegular *ElfSym::Edata2;
 DefinedRegular *ElfSym::End;
 DefinedRegular *ElfSym::End2;
 DefinedRegular *ElfSym::MipsGpDisp;
 DefinedRegular *ElfSym::MipsLocalGp;
 DefinedRegular *ElfSym::MipsGp;
 
-template <class ELFT>
-static typename ELFT::uint getSymVA(const SymbolBody &Body, int64_t &Addend) {
+static uint64_t getSymVA(const SymbolBody &Body, int64_t &Addend) {
   switch (Body.kind()) {
   case SymbolBody::DefinedRegularKind: {
     auto &D = cast<DefinedRegular>(Body);
     SectionBase *IS = D.Section;
     if (auto *ISB = dyn_cast_or_null<InputSectionBase>(IS))
       IS = ISB->Repl;
 
     // According to the ELF spec reference to a local symbol from outside
if (D.isTls() && !Config->Relocatable) {
               " has a STT_TLS symbol but doesn't have a PT_TLS section");
       return VA - Out::TlsPhdr->p_vaddr;
     }
     return VA;
   }
   case SymbolBody::DefinedCommonKind:
     if (!Config->DefineCommon)
       return 0;
-    return In<ELFT>::Common->OutSec->Addr + In<ELFT>::Common->OutSecOff +
+    return InX::Common->OutSec->Addr + InX::Common->OutSecOff +
            cast<DefinedCommon>(Body).Offset;
   case SymbolBody::SharedKind: {
     auto &SS = cast<SharedSymbol>(Body);
     if (SS.NeedsCopy)
       return SS.CopyRelSec->OutSec->Addr + SS.CopyRelSec->OutSecOff +
              SS.CopyRelSecOff;
     if (SS.NeedsPltAddr)
-      return Body.getPltVA<ELFT>();
+      return Body.getPltVA();
     return 0;
   }
   case SymbolBody::UndefinedKind:
     return 0;
   case SymbolBody::LazyArchiveKind:
   case SymbolBody::LazyObjectKind:
     assert(Body.symbol()->IsUsedInRegularObj && "lazy symbol reached writer");
     return 0;
if (symbol()->Visibility != STV_DEFAULT)
     return false;
 
   // -Bsymbolic means that definitions are not preempted.
   if (Config->Bsymbolic || (Config->BsymbolicFunctions && isFunc()))
     return !isDefined();
   return true;
 }
 
-template <class ELFT>
-typename ELFT::uint SymbolBody::getVA(int64_t Addend) const {
-  typename ELFT::uint OutVA = getSymVA<ELFT>(*this, Addend);
+uint64_t SymbolBody::getVA(int64_t Addend) const {
+  uint64_t OutVA = getSymVA(*this, Addend);
   return OutVA + Addend;
 }
 
 template <class ELFT> typename ELFT::uint SymbolBody::getGotVA() const {
   return In<ELFT>::Got->getVA() + getGotOffset<ELFT>();
 }
 
 template <class ELFT> typename ELFT::uint SymbolBody::getGotOffset() const {
   return GotIndex * Target->GotEntrySize;
 }
 
-template <class ELFT> typename ELFT::uint SymbolBody::getGotPltVA() const {
+uint64_t SymbolBody::getGotPltVA() const {
   if (this->IsInIgot)
-    return In<ELFT>::IgotPlt->getVA() + getGotPltOffset<ELFT>();
-  return In<ELFT>::GotPlt->getVA() + getGotPltOffset<ELFT>();
+    return InX::IgotPlt->getVA() + getGotPltOffset();
+  return InX::GotPlt->getVA() + getGotPltOffset();
 }
 
-template <class ELFT> typename ELFT::uint SymbolBody::getGotPltOffset() const {
+unsigned SymbolBody::getGotPltOffset() const {
   return GotPltIndex * Target->GotPltEntrySize;
 }
 
-template <class ELFT> typename ELFT::uint SymbolBody::getPltVA() const {
+uint64_t SymbolBody::getPltVA() const {
   if (this->IsInIplt)
-    return In<ELFT>::Iplt->getVA() + PltIndex * Target->PltEntrySize;
-  return In<ELFT>::Plt->getVA() + Target->PltHeaderSize +
+    return InX::Iplt->getVA() + PltIndex * Target->PltEntrySize;
+  return InX::Plt->getVA() + Target->PltHeaderSize +
          PltIndex * Target->PltEntrySize;
 }
 
 template <class ELFT> typename ELFT::uint SymbolBody::getSize() const {
   if (const auto *C = dyn_cast<DefinedCommon>(this))
     return C->Size;
   if (const auto *DR = dyn_cast<DefinedRegular>(this))
     return DR->Size;
   if (const auto *S = dyn_cast<SharedSymbol>(this))
     return S->getSize<ELFT>();
   return 0;
 }
 
-template <class ELFT> OutputSection *SymbolBody::getOutputSection() const {
+OutputSection *SymbolBody::getOutputSection() const {
   if (auto *S = dyn_cast<DefinedRegular>(this)) {
     if (S->Section)
       return S->Section->getOutputSection();
     return nullptr;
   }
 
   if (auto *S = dyn_cast<SharedSymbol>(this)) {
     if (S->NeedsCopy)
       return S->CopyRelSec->OutSec;
     return nullptr;
   }
 
   if (isa<DefinedCommon>(this)) {
     if (Config->DefineCommon)
-      return In<ELFT>::Common->OutSec;
+      return InX::Common->OutSec;
     return nullptr;
   }
 
   return nullptr;
 }
 
 // If a symbol name contains '@', the characters after that is
 // a symbol version name. This function parses that.

 // Returns a symbol for an error message.
 std::string lld::toString(const SymbolBody &B) {
   if (Config->Demangle)
     if (Optional<std::string> S = demangle(B.getName()))
       return *S;
   return B.getName();
 }
 
-template uint32_t SymbolBody::template getVA<ELF32LE>(int64_t) const;
-template uint32_t SymbolBody::template getVA<ELF32BE>(int64_t) const;
-template uint64_t SymbolBody::template getVA<ELF64LE>(int64_t) const;
-template uint64_t SymbolBody::template getVA<ELF64BE>(int64_t) const;
-
 template uint32_t SymbolBody::template getGotVA<ELF32LE>() const;
 template uint32_t SymbolBody::template getGotVA<ELF32BE>() const;
 template uint64_t SymbolBody::template getGotVA<ELF64LE>() const;
 template uint64_t SymbolBody::template getGotVA<ELF64BE>() const;
 
 template uint32_t SymbolBody::template getGotOffset<ELF32LE>() const;
 template uint32_t SymbolBody::template getGotOffset<ELF32BE>() const;
 template uint64_t SymbolBody::template getGotOffset<ELF64LE>() const;
 template uint64_t SymbolBody::template getGotOffset<ELF64BE>() const;
 
-template uint32_t SymbolBody::template getGotPltVA<ELF32LE>() const;
-template uint32_t SymbolBody::template getGotPltVA<ELF32BE>() const;
-template uint64_t SymbolBody::template getGotPltVA<ELF64LE>() const;
-template uint64_t SymbolBody::template getGotPltVA<ELF64BE>() const;
-
-template uint32_t SymbolBody::template getGotPltOffset<ELF32LE>() const;
-template uint32_t SymbolBody::template getGotPltOffset<ELF32BE>() const;
-template uint64_t SymbolBody::template getGotPltOffset<ELF64LE>() const;
-template uint64_t SymbolBody::template getGotPltOffset<ELF64BE>() const;
-
-template uint32_t SymbolBody::template getPltVA<ELF32LE>() const;
-template uint32_t SymbolBody::template getPltVA<ELF32BE>() const;
-template uint64_t SymbolBody::template getPltVA<ELF64LE>() const;
-template uint64_t SymbolBody::template getPltVA<ELF64BE>() const;
-
 template uint32_t SymbolBody::template getSize<ELF32LE>() const;
 template uint32_t SymbolBody::template getSize<ELF32BE>() const;
 template uint64_t SymbolBody::template getSize<ELF64LE>() const;
 template uint64_t SymbolBody::template getSize<ELF64BE>() const;
 
-template OutputSection *SymbolBody::template getOutputSection<ELF32LE>() const;
-template OutputSection *SymbolBody::template getOutputSection<ELF32BE>() const;
-template OutputSection *SymbolBody::template getOutputSection<ELF64LE>() const;
-template OutputSection *SymbolBody::template getOutputSection<ELF64BE>() const;
-
 template bool DefinedRegular::template isMipsPIC<ELF32LE>() const;
 template bool DefinedRegular::template isMipsPIC<ELF32BE>() const;
 template bool DefinedRegular::template isMipsPIC<ELF64LE>() const;
 template bool DefinedRegular::template isMipsPIC<ELF64BE>() const;
 
 template uint32_t SharedSymbol::template getAlignment<ELF32LE>() const;
 template uint32_t SharedSymbol::template getAlignment<ELF32BE>() const;
 template uint32_t SharedSymbol::template getAlignment<ELF64LE>() const;
 template uint32_t SharedSymbol::template getAlignment<ELF64BE>() const;

ELF/SyntheticSections.h

 private:
   size_t Size = 0;
 };
 
 // The PltSection is used for both the Plt and Iplt. The former always has a
 // header as its first entry that is used at run-time to resolve lazy binding.
 // The latter is used for GNU Ifunc symbols, that will be subject to a
 // Target->IRelativeRel.
-template <class ELFT> class PltSection : public SyntheticSection {
+class PltSection : public SyntheticSection {
 public:
   PltSection(size_t HeaderSize);
   void writeTo(uint8_t *Buf) override;
   size_t getSize() const override;
-  void addEntry(SymbolBody &Sym);
   bool empty() const override { return Entries.empty(); }
   void addSymbols();
 
+  template <class ELFT> void addEntry(SymbolBody &Sym);
+
 private:
   void writeHeader(uint8_t *Buf){};
   void addHeaderSymbols(){};
   unsigned getPltRelocOff() const;
   std::vector<std::pair<const SymbolBody *, unsigned>> Entries;
   // Iplt always has HeaderSize of 0, the Plt HeaderSize is always non-zero
   size_t HeaderSize;
 };

 
 template <class ELFT> InputSection *createCommonSection();
 InputSection *createInterpSection();
 template <class ELFT> MergeInputSection *createCommentSection();
 template <class ELFT>
 SymbolBody *addSyntheticLocal(StringRef Name, uint8_t Type, uint64_t Value,
                               uint64_t Size, InputSectionBase *Section);
 
-// Linker generated sections which can be used as inputs.
-template <class ELFT> struct In {
+struct InX {
   static InputSection *ARMAttributes;
-  static BuildIdSection<ELFT> *BuildId;
   static BssSection *Bss;
   static BssSection *BssRelRo;
   static InputSection *Common;
-  static DynamicSection<ELFT> *Dynamic;
   static StringTableSection *DynStrTab;
+  static InputSection *Interp;
+  static GotPltSection *GotPlt;
+  static IgotPltSection *IgotPlt;
+  static MipsRldMapSection *MipsRldMap;
+  static PltSection *Plt;
+  static PltSection *Iplt;
+  static StringTableSection *ShStrTab;
+  static StringTableSection *StrTab;
+};
+
+// Linker generated sections which can be used as inputs.
+template <class ELFT> struct In : public InX {
+  static BuildIdSection<ELFT> *BuildId;
+  static DynamicSection<ELFT> *Dynamic;
   static SymbolTableSection<ELFT> *DynSymTab;
   static EhFrameHeader<ELFT> *EhFrameHdr;
   static GnuHashTableSection<ELFT> *GnuHashTab;
   static GdbIndexSection<ELFT> *GdbIndex;
   static GotSection<ELFT> *Got;
   static EhFrameSection<ELFT> *EhFrame;
   static MipsGotSection<ELFT> *MipsGot;
-  static GotPltSection *GotPlt;
-  static IgotPltSection *IgotPlt;
   static HashTableSection<ELFT> *HashTab;
-  static InputSection *Interp;
-  static MipsRldMapSection *MipsRldMap;
-  static PltSection<ELFT> *Plt;
-  static PltSection<ELFT> *Iplt;
   static RelocationSection<ELFT> *RelaDyn;
   static RelocationSection<ELFT> *RelaPlt;
   static RelocationSection<ELFT> *RelaIplt;
-  static StringTableSection *ShStrTab;
-  static StringTableSection *StrTab;
   static SymbolTableSection<ELFT> *SymTab;
   static VersionDefinitionSection<ELFT> *VerDef;
   static VersionTableSection<ELFT> *VerSym;
   static VersionNeedSection<ELFT> *VerNeed;
 };
 
-template <class ELFT> InputSection *In<ELFT>::ARMAttributes;
-template <class ELFT> BssSection *In<ELFT>::Bss;
-template <class ELFT> BssSection *In<ELFT>::BssRelRo;
 template <class ELFT> BuildIdSection<ELFT> *In<ELFT>::BuildId;
-template <class ELFT> InputSection *In<ELFT>::Common;
 template <class ELFT> DynamicSection<ELFT> *In<ELFT>::Dynamic;
-template <class ELFT> StringTableSection *In<ELFT>::DynStrTab;
 template <class ELFT> SymbolTableSection<ELFT> *In<ELFT>::DynSymTab;
 template <class ELFT> EhFrameHeader<ELFT> *In<ELFT>::EhFrameHdr;
 template <class ELFT> GdbIndexSection<ELFT> *In<ELFT>::GdbIndex;
 template <class ELFT> GnuHashTableSection<ELFT> *In<ELFT>::GnuHashTab;
 template <class ELFT> GotSection<ELFT> *In<ELFT>::Got;
 template <class ELFT> EhFrameSection<ELFT> *In<ELFT>::EhFrame;
 template <class ELFT> MipsGotSection<ELFT> *In<ELFT>::MipsGot;
-template <class ELFT> GotPltSection *In<ELFT>::GotPlt;
-template <class ELFT> IgotPltSection *In<ELFT>::IgotPlt;
 template <class ELFT> HashTableSection<ELFT> *In<ELFT>::HashTab;
-template <class ELFT> InputSection *In<ELFT>::Interp;
-template <class ELFT> MipsRldMapSection *In<ELFT>::MipsRldMap;
-template <class ELFT> PltSection<ELFT> *In<ELFT>::Plt;
-template <class ELFT> PltSection<ELFT> *In<ELFT>::Iplt;
 template <class ELFT> RelocationSection<ELFT> *In<ELFT>::RelaDyn;
 template <class ELFT> RelocationSection<ELFT> *In<ELFT>::RelaPlt;
 template <class ELFT> RelocationSection<ELFT> *In<ELFT>::RelaIplt;
-template <class ELFT> StringTableSection *In<ELFT>::ShStrTab;
-template <class ELFT> StringTableSection *In<ELFT>::StrTab;
 template <class ELFT> SymbolTableSection<ELFT> *In<ELFT>::SymTab;
 template <class ELFT> VersionDefinitionSection<ELFT> *In<ELFT>::VerDef;
 template <class ELFT> VersionTableSection<ELFT> *In<ELFT>::VerSym;
 template <class ELFT> VersionNeedSection<ELFT> *In<ELFT>::VerNeed;
 } // namespace elf
 } // namespace lld
 
 #endif

ELF/SyntheticSections.cpp

 
 template <class ELFT>
 typename MipsGotSection<ELFT>::uintX_t
 MipsGotSection<ELFT>::getPageEntryOffset(const SymbolBody &B,
                                          int64_t Addend) const {
   const OutputSection *OutSec =
       cast<DefinedRegular>(&B)->Section->getOutputSection();
   uintX_t SecAddr = getMipsPageAddr(OutSec->Addr);
-  uintX_t SymAddr = getMipsPageAddr(B.getVA<ELFT>(Addend));
+  uintX_t SymAddr = getMipsPageAddr(B.getVA(Addend));
   uintX_t Index = PageIndexMap.lookup(OutSec) + (SymAddr - SecAddr) / 0xffff;
   assert(Index < PageEntriesNum);
   return (HeaderEntriesNum + Index) * sizeof(uintX_t);
 }
 
 template <class ELFT>
 typename MipsGotSection<ELFT>::uintX_t
 MipsGotSection<ELFT>::getBodyEntryOffset(const SymbolBody &B,

 template <class ELFT> bool MipsGotSection<ELFT>::empty() const {
   // We add the .got section to the result for dynamic MIPS target because
   // its address and properties are mentioned in the .dynamic section.
   return Config->Relocatable;
 }
 
 template <class ELFT>
 typename MipsGotSection<ELFT>::uintX_t MipsGotSection<ELFT>::getGp() const {
-  return ElfSym::MipsGp->template getVA<ELFT>(0);
+  return ElfSym::MipsGp->getVA(0);
 }
 
 template <class ELFT>
 static void writeUint(uint8_t *Buf, typename ELFT::uint Val) {
   typedef typename ELFT::uint uintX_t;
   write<uintX_t, ELFT::TargetEndianness, sizeof(uintX_t)>(Buf, Val);
 }
 
for (size_t PI = 0; PI < PageCount; ++PI) {
       writeUint<ELFT>(Entry, FirstPageAddr + PI * 0x10000);
     }
   }
   Buf += PageEntriesNum * sizeof(uintX_t);
   auto AddEntry = [&](const GotEntry &SA) {
     uint8_t *Entry = Buf;
     Buf += sizeof(uintX_t);
     const SymbolBody *Body = SA.first;
-    uintX_t VA = Body->template getVA<ELFT>(SA.second);
+    uintX_t VA = Body->getVA(SA.second);
     writeUint<ELFT>(Entry, VA);
   };
   std::for_each(std::begin(LocalEntries), std::end(LocalEntries), AddEntry);
   std::for_each(std::begin(LocalEntries32), std::end(LocalEntries32), AddEntry);
   std::for_each(std::begin(GlobalEntries), std::end(GlobalEntries), AddEntry);
   // Initialize TLS-related GOT entries. If the entry has a corresponding
   // dynamic relocations, leave it initialized by zero. Write down adjusted
   // TLS symbol's values otherwise. To calculate the adjustments use offsets
   // for thread-local storage.
   // https://www.linux-mips.org/wiki/NPTL
   if (TlsIndexOff != -1U && !Config->pic())
     writeUint<ELFT>(Buf + TlsIndexOff, 1);
   for (const SymbolBody *B : TlsEntries) {
     if (!B || B->isPreemptible())
       continue;
-    uintX_t VA = B->getVA<ELFT>();
+    uintX_t VA = B->getVA();
     if (B->GotIndex != -1U) {
       uint8_t *Entry = Buf + B->GotIndex * sizeof(uintX_t);
       writeUint<ELFT>(Entry, VA - 0x7000);
     }
     if (B->GlobalDynIndex != -1U) {
       uint8_t *Entry = Buf + B->GlobalDynIndex * sizeof(uintX_t);
       writeUint<ELFT>(Entry, 1);
       Entry += sizeof(uintX_t);
case Entry::SecAddr:
       break;
     case Entry::InSecAddr:
       P->d_un.d_ptr = E.InSec->OutSec->Addr + E.InSec->OutSecOff;
       break;
     case Entry::SecSize:
       P->d_un.d_val = E.OutSec->Size;
       break;
     case Entry::SymAddr:
-      P->d_un.d_ptr = E.Sym->template getVA<ELFT>();
+      P->d_un.d_ptr = E.Sym->getVA();
       break;
     case Entry::PlainInt:
       P->d_un.d_val = E.Val;
       break;
     }
     ++P;
   }
 }
 
 template <class ELFT>
 typename ELFT::uint DynamicReloc<ELFT>::getOffset() const {
   return InputSec->OutSec->Addr + InputSec->getOffset(OffsetInSec);
 }
 
 template <class ELFT> int64_t DynamicReloc<ELFT>::getAddend() const {
   if (UseSymVA)
-    return Sym->getVA<ELFT>(Addend);
+    return Sym->getVA(Addend);
   return Addend;
 }
 
 template <class ELFT> uint32_t DynamicReloc<ELFT>::getSymIndex() const {
   if (Sym && !UseSymVA)
     return Sym->DynsymIndex;
   return 0;
 }
if (Body->isLocal()) {
       ESym->setBindingAndType(Body->symbol()->computeBinding(), Body->Type);
       ESym->setVisibility(Body->symbol()->Visibility);
     }
 
     ESym->st_name = Ent.StrTabOffset;
     ESym->st_size = Body->getSize<ELFT>();
 
     // Set a section index.
-    if (const OutputSection *OutSec = Body->getOutputSection<ELFT>())
+    if (const OutputSection *OutSec = Body->getOutputSection())
       ESym->st_shndx = OutSec->SectionIndex;
     else if (isa<DefinedRegular>(Body))
       ESym->st_shndx = SHN_ABS;
     else if (isa<DefinedCommon>(Body))
       ESym->st_shndx = SHN_COMMON;
 
     // st_value is usually an address of a symbol, but that has a
     // special meaining for uninstantiated common symbols (this can
     // occur if -r is given).
     if (!Config->DefineCommon && isa<DefinedCommon>(Body))
       ESym->st_value = cast<DefinedCommon>(Body)->Alignment;
     else
-      ESym->st_value = Body->getVA<ELFT>();
+      ESym->st_value = Body->getVA();
 
     ++ESym;
   }
 
   // On MIPS we need to mark symbol which has a PLT entry and requires
   // pointer equality by STO_MIPS_PLT flag. That is necessary to help
   // dynamic linker distinguish such symbols and MIPS lazy-binding stubs.
   // https://sourceware.org/ml/binutils/2008-07/txt00000.txt
for (const SymbolTableEntry &S : In<ELFT>::DynSymTab->getSymbols()) {
     StringRef Name = Body->getName();
     unsigned I = Body->DynsymIndex;
     uint32_t Hash = hashSysV(Name) % NumSymbols;
     Chains[I] = Buckets[Hash];
     Buckets[Hash] = I;
   }
 }
 
-template <class ELFT>
-PltSection<ELFT>::PltSection(size_t S)
+PltSection::PltSection(size_t S)
     : SyntheticSection(SHF_ALLOC | SHF_EXECINSTR, SHT_PROGBITS, 16, ".plt"),
       HeaderSize(S) {}
 
-template <class ELFT> void PltSection<ELFT>::writeTo(uint8_t *Buf) {
+void PltSection::writeTo(uint8_t *Buf) {
   // At beginning of PLT but not the IPLT, we have code to call the dynamic
   // linker to resolve dynsyms at runtime. Write such code.
   if (HeaderSize != 0)
     Target->writePltHeader(Buf);
   size_t Off = HeaderSize;
   // The IPlt is immediately after the Plt, account for this in RelOff
   unsigned PltOff = getPltRelocOff();
 
   for (auto &I : Entries) {
     const SymbolBody *B = I.first;
     unsigned RelOff = I.second + PltOff;
-    uint64_t Got = B->getGotPltVA<ELFT>();
+    uint64_t Got = B->getGotPltVA();
     uint64_t Plt = this->getVA() + Off;
     Target->writePlt(Buf + Off, Got, Plt, B->PltIndex, RelOff);
     Off += Target->PltEntrySize;
   }
 }
 
-template <class ELFT> void PltSection<ELFT>::addEntry(SymbolBody &Sym) {
+template <class ELFT> void PltSection::addEntry(SymbolBody &Sym) {
   Sym.PltIndex = Entries.size();
   RelocationSection<ELFT> *PltRelocSection = In<ELFT>::RelaPlt;
   if (HeaderSize == 0) {
     PltRelocSection = In<ELFT>::RelaIplt;
     Sym.IsInIplt = true;
   }
   unsigned RelOff = PltRelocSection->getRelocOffset();
   Entries.push_back(std::make_pair(&Sym, RelOff));
 }
 
-template <class ELFT> size_t PltSection<ELFT>::getSize() const {
+size_t PltSection::getSize() const {
   return HeaderSize + Entries.size() * Target->PltEntrySize;
 }
 
 // Some architectures such as additional symbols in the PLT section. For
 // example ARM uses mapping symbols to aid disassembly
-template <class ELFT> void PltSection<ELFT>::addSymbols() {
+void PltSection::addSymbols() {
   // The PLT may have symbols defined for the Header, the IPLT has no header
   if (HeaderSize != 0)
     Target->addPltHeaderSymbols(this);
   size_t Off = HeaderSize;
   for (size_t I = 0; I < Entries.size(); ++I) {
     Target->addPltSymbols(this, Off);
     Off += Target->PltEntrySize;
   }
 }
 
-template <class ELFT> unsigned PltSection<ELFT>::getPltRelocOff() const {
-  return (HeaderSize == 0) ? In<ELFT>::Plt->getSize() : 0;
+unsigned PltSection::getPltRelocOff() const {
+  return (HeaderSize == 0) ? InX::Plt->getSize() : 0;
 }
 
 template <class ELFT>
 GdbIndexSection<ELFT>::GdbIndexSection()
     : SyntheticSection(0, SHT_PROGBITS, 1, ".gdb_index"),
       StringPool(llvm::StringTableBuilder::ELF) {}
 
 // Iterative hash function for symbol's name is described in .gdb_index format

 }
 
 template <class ELFT>
 InputSection *ThunkSection<ELFT>::getTargetInputSection() const {
   const Thunk<ELFT> *T = Thunks.front();
   return T->getTargetInputSection();
 }
 
+namespace lld {
+namespace elf {
+template void PltSection::addEntry<ELF32LE>(SymbolBody &Sym);
+template void PltSection::addEntry<ELF32BE>(SymbolBody &Sym);
+template void PltSection::addEntry<ELF64LE>(SymbolBody &Sym);
+template void PltSection::addEntry<ELF64BE>(SymbolBody &Sym);
+}
+}
+
+InputSection *InX::ARMAttributes;
+BssSection *InX::Bss;
+BssSection *InX::BssRelRo;
+InputSection *InX::Common;
+StringTableSection *InX::DynStrTab;
+InputSection *InX::Interp;
+GotPltSection *InX::GotPlt;
+IgotPltSection *InX::IgotPlt;
+MipsRldMapSection *InX::MipsRldMap;
+PltSection *InX::Plt;
+PltSection *InX::Iplt;
+StringTableSection *InX::ShStrTab;
+StringTableSection *InX::StrTab;
+
 template InputSection *elf::createCommonSection<ELF32LE>();
 template InputSection *elf::createCommonSection<ELF32BE>();
 template InputSection *elf::createCommonSection<ELF64LE>();
 template InputSection *elf::createCommonSection<ELF64BE>();
 
 template MergeInputSection *elf::createCommentSection<ELF32LE>();
 template MergeInputSection *elf::createCommentSection<ELF32BE>();
 template MergeInputSection *elf::createCommentSection<ELF64LE>();

 template class elf::GnuHashTableSection<ELF64LE>;
 template class elf::GnuHashTableSection<ELF64BE>;
 
 template class elf::HashTableSection<ELF32LE>;
 template class elf::HashTableSection<ELF32BE>;
 template class elf::HashTableSection<ELF64LE>;
 template class elf::HashTableSection<ELF64BE>;
 
-template class elf::PltSection<ELF32LE>;
-template class elf::PltSection<ELF32BE>;
-template class elf::PltSection<ELF64LE>;
-template class elf::PltSection<ELF64BE>;
-
 template class elf::GdbIndexSection<ELF32LE>;
 template class elf::GdbIndexSection<ELF32BE>;
 template class elf::GdbIndexSection<ELF64LE>;
 template class elf::GdbIndexSection<ELF64BE>;
 
 template class elf::EhFrameHeader<ELF32LE>;
 template class elf::EhFrameHeader<ELF32BE>;
 template class elf::EhFrameHeader<ELF64LE>;

ELF/Target.cpp

 
 void X86TargetInfo::writeGotPltHeader(uint8_t *Buf) const {
   write32le(Buf, In<ELF32LE>::Dynamic->getVA());
 }
 
 void X86TargetInfo::writeGotPlt(uint8_t *Buf, const SymbolBody &S) const {
   // Entries in .got.plt initially points back to the corresponding
   // PLT entries with a fixed offset to skip the first instruction.
-  write32le(Buf, S.getPltVA<ELF32LE>() + 6);
+  write32le(Buf, S.getPltVA() + 6);
 }
 
 void X86TargetInfo::writeIgotPlt(uint8_t *Buf, const SymbolBody &S) const {
   // An x86 entry is the address of the ifunc resolver function.
-  write32le(Buf, S.getVA<ELF32LE>());
+  write32le(Buf, S.getVA());
 }
 
 uint32_t X86TargetInfo::getDynRel(uint32_t Type) const {
   if (Type == R_386_TLS_LE)
     return R_386_TLS_TPOFF;
   if (Type == R_386_TLS_LE_32)
     return R_386_TLS_TPOFF32;
   return Type;
void X86_64TargetInfo<ELFT>::writeGotPltHeader(uint8_t *Buf) const {
   // other program).
   write64le(Buf, In<ELFT>::Dynamic->getVA());
 }
 
 template <class ELFT>
 void X86_64TargetInfo<ELFT>::writeGotPlt(uint8_t *Buf,
                                          const SymbolBody &S) const {
   // See comments in X86TargetInfo::writeGotPlt.
-  write32le(Buf, S.getPltVA<ELFT>() + 6);
+  write32le(Buf, S.getPltVA() + 6);
 }
 
 template <class ELFT>
 void X86_64TargetInfo<ELFT>::writePltHeader(uint8_t *Buf) const {
   const uint8_t PltData[] = {
       0xff, 0x35, 0x00, 0x00, 0x00, 0x00, // pushq GOT+8(%rip)
       0xff, 0x25, 0x00, 0x00, 0x00, 0x00, // jmp *GOT+16(%rip)
       0x0f, 0x1f, 0x40, 0x00              // nopl 0x0(rax)

 }
 
 void ARMTargetInfo::writeGotPlt(uint8_t *Buf, const SymbolBody &) const {
   write32le(Buf, In<ELF32LE>::Plt->getVA());
 }
 
 void ARMTargetInfo::writeIgotPlt(uint8_t *Buf, const SymbolBody &S) const {
   // An ARM entry is the address of the ifunc resolver function.
-  write32le(Buf, S.getVA<ELF32LE>());
+  write32le(Buf, S.getVA());
 }
 
 void ARMTargetInfo::writePltHeader(uint8_t *Buf) const {
   const uint8_t PltData[] = {
       0x04, 0xe0, 0x2d, 0xe5, //     str lr, [sp,#-4]!
       0x04, 0xe0, 0x9f, 0xe5, //     ldr lr, L2
       0x0e, 0xe0, 0x8f, 0xe0, // L1: add lr, pc, lr
       0x08, 0xf0, 0xbe, 0xe5, //     ldr pc, [lr, #8]
bool ARMTargetInfo::needsThunk(RelExpr Expr, uint32_t RelocType,
   // interworking thunk if the relocation type is not R_ARM_CALL or
   // R_ARM_THM_CALL.
   switch (RelocType) {
   case R_ARM_PC24:
   case R_ARM_PLT32:
   case R_ARM_JUMP24:
     // Source is ARM, all PLT entries are ARM so no interworking required.
     // Otherwise we need to interwork if Symbol has bit 0 set (Thumb).
-    if (Expr == R_PC && ((S.getVA<ELF32LE>() & 1) == 1))
+    if (Expr == R_PC && ((S.getVA() & 1) == 1))
       return true;
     break;
   case R_ARM_THM_JUMP19:
   case R_ARM_THM_JUMP24:
     // Source is Thumb, all PLT entries are ARM so interworking is required.
     // Otherwise we need to interwork if Symbol has bit 0 clear (ARM).
-    if (Expr == R_PLT_PC || ((S.getVA<ELF32LE>() & 1) == 0))
+    if (Expr == R_PLT_PC || ((S.getVA() & 1) == 0))
       return true;
     break;
   }
   return false;
 }
 
 void ARMTargetInfo::relocateOne(uint8_t *Loc, uint32_t Type,
                                 uint64_t Val) const {

ELF/Thunks.cpp

public:
   void writeTo(uint8_t *Buf, ThunkSection<ELFT> &IS) const override;
   void addSymbols(ThunkSection<ELFT> &IS) override;
   InputSection *getTargetInputSection() const override;
 };
 
 } // end anonymous namespace
 
 // ARM Target Thunks
-template <class ELFT> static uint64_t getARMThunkDestVA(const SymbolBody &S) {
-  uint64_t V = S.isInPlt() ? S.getPltVA<ELFT>() : S.getVA<ELFT>();
+static uint64_t getARMThunkDestVA(const SymbolBody &S) {
+  uint64_t V = S.isInPlt() ? S.getPltVA() : S.getVA();
   return SignExtend64<32>(V);
 }
 
 template <class ELFT>
 void ARMToThumbV7ABSLongThunk<ELFT>::writeTo(uint8_t *Buf,
                                              ThunkSection<ELFT> &IS) const {
   const uint8_t Data[] = {
       0x00, 0xc0, 0x00, 0xe3, // movw         ip,:lower16:S
       0x00, 0xc0, 0x40, 0xe3, // movt         ip,:upper16:S
       0x1c, 0xff, 0x2f, 0xe1, // bx   ip
   };
-  uint64_t S = getARMThunkDestVA<ELFT>(this->Destination);
+  uint64_t S = getARMThunkDestVA(this->Destination);
   memcpy(Buf, Data, sizeof(Data));
   Target->relocateOne(Buf, R_ARM_MOVW_ABS_NC, S);
   Target->relocateOne(Buf + 4, R_ARM_MOVT_ABS, S);
 }
 
 template <class ELFT>
 void ARMToThumbV7ABSLongThunk<ELFT>::addSymbols(ThunkSection<ELFT> &IS) {
   this->ThunkSym = addSyntheticLocal<ELFT>(
       Saver.save("__ARMToThumbv7ABSLongThunk_" + this->Destination.getName()),
       STT_FUNC, this->Offset, size(), &IS);
   addSyntheticLocal<ELFT>("$a", STT_NOTYPE, this->Offset, 0, &IS);
 }
 
 template <class ELFT>
 void ThumbToARMV7ABSLongThunk<ELFT>::writeTo(uint8_t *Buf,
                                              ThunkSection<ELFT> &IS) const {
   const uint8_t Data[] = {
       0x40, 0xf2, 0x00, 0x0c, // movw         ip, :lower16:S
       0xc0, 0xf2, 0x00, 0x0c, // movt         ip, :upper16:S
       0x60, 0x47,             // bx   ip
   };
-  uint64_t S = getARMThunkDestVA<ELFT>(this->Destination);
+  uint64_t S = getARMThunkDestVA(this->Destination);
   memcpy(Buf, Data, sizeof(Data));
   Target->relocateOne(Buf, R_ARM_THM_MOVW_ABS_NC, S);
   Target->relocateOne(Buf + 4, R_ARM_THM_MOVT_ABS, S);
 }
 
 template <class ELFT>
 void ThumbToARMV7ABSLongThunk<ELFT>::addSymbols(ThunkSection<ELFT> &IS) {
   this->ThunkSym = addSyntheticLocal<ELFT>(
       Saver.save("__ThumbToARMv7ABSLongThunk_" + this->Destination.getName()),
       STT_FUNC, this->Offset, size(), &IS);
   addSyntheticLocal<ELFT>("$t", STT_NOTYPE, this->Offset, 0, &IS);
 }
 
 template <class ELFT>
 void ARMToThumbV7PILongThunk<ELFT>::writeTo(uint8_t *Buf,
                                             ThunkSection<ELFT> &IS) const {
   const uint8_t Data[] = {
       0xf0, 0xcf, 0x0f, 0xe3, // P:  movw ip,:lower16:S - (P + (L1-P) +8)
       0x00, 0xc0, 0x40, 0xe3, //     movt ip,:upper16:S - (P + (L1-P+4) +8)
       0x0f, 0xc0, 0x8c, 0xe0, // L1: add ip, ip, pc
       0x1c, 0xff, 0x2f, 0xe1, //     bx r12
   };
-  uint64_t S = getARMThunkDestVA<ELFT>(this->Destination);
-  uint64_t P = this->ThunkSym->template getVA<ELFT>();
+  uint64_t S = getARMThunkDestVA(this->Destination);
+  uint64_t P = this->ThunkSym->getVA();
   memcpy(Buf, Data, sizeof(Data));
   Target->relocateOne(Buf, R_ARM_MOVW_PREL_NC, S - P - 16);
   Target->relocateOne(Buf + 4, R_ARM_MOVT_PREL, S - P - 12);
 }
 
 template <class ELFT>
 void ARMToThumbV7PILongThunk<ELFT>::addSymbols(ThunkSection<ELFT> &IS) {
   this->ThunkSym = addSyntheticLocal<ELFT>(
       Saver.save("__ARMToThumbV7PILongThunk_" + this->Destination.getName()),
       STT_FUNC, this->Offset, size(), &IS);
   addSyntheticLocal<ELFT>("$a", STT_NOTYPE, this->Offset, 0, &IS);
 }
 
 template <class ELFT>
 void ThumbToARMV7PILongThunk<ELFT>::writeTo(uint8_t *Buf,
                                             ThunkSection<ELFT> &IS) const {
   const uint8_t Data[] = {
       0x4f, 0xf6, 0xf4, 0x7c, // P:  movw ip,:lower16:S - (P + (L1-P) + 4)
       0xc0, 0xf2, 0x00, 0x0c, //     movt ip,:upper16:S - (P + (L1-P+4) + 4)
       0xfc, 0x44,             // L1: add  r12, pc
       0x60, 0x47,             //     bx   r12
   };
-  uint64_t S = getARMThunkDestVA<ELFT>(this->Destination);
-  uint64_t P = this->ThunkSym->template getVA<ELFT>();
+  uint64_t S = getARMThunkDestVA(this->Destination);
+  uint64_t P = this->ThunkSym->getVA();
   memcpy(Buf, Data, sizeof(Data));
   Target->relocateOne(Buf, R_ARM_THM_MOVW_PREL_NC, S - P - 12);
   Target->relocateOne(Buf + 4, R_ARM_THM_MOVT_PREL, S - P - 8);
 }
 
 template <class ELFT>
 void ThumbToARMV7PILongThunk<ELFT>::addSymbols(ThunkSection<ELFT> &IS) {
   this->ThunkSym = addSyntheticLocal<ELFT>(
       Saver.save("__ThumbToARMV7PILongThunk_" + this->Destination.getName()),
       STT_FUNC, this->Offset, size(), &IS);
   addSyntheticLocal<ELFT>("$t", STT_NOTYPE, this->Offset, 0, &IS);
 }
 
 // Write MIPS LA25 thunk code to call PIC function from the non-PIC one.
 template <class ELFT>
 void MipsThunk<ELFT>::writeTo(uint8_t *Buf, ThunkSection<ELFT> &) const {
   const endianness E = ELFT::TargetEndianness;
 
-  uint64_t S = this->Destination.template getVA<ELFT>();
+  uint64_t S = this->Destination.getVA();
   write32<E>(Buf, 0x3c190000);                // lui   $25, %hi(func)
   write32<E>(Buf + 4, 0x08000000 | (S >> 2)); // j     func
   write32<E>(Buf + 8, 0x27390000);            // addiu $25, $25, %lo(func)
   write32<E>(Buf + 12, 0x00000000);           // nop
   Target->relocateOne(Buf, R_MIPS_HI16, S);
   Target->relocateOne(Buf + 8, R_MIPS_LO16, S);
 }
 

ELF/Writer.cpp

template <class ELFT> void Writer<ELFT>::createSyntheticSections() {
 
   // The RelaIplt immediately follows .rel.plt (.rel.dyn for ARM) to ensure
   // that the IRelative relocations are processed last by the dynamic loader
   In<ELFT>::RelaIplt = make<RelocationSection<ELFT>>(
       (Config->EMachine == EM_ARM) ? ".rel.dyn" : In<ELFT>::RelaPlt->Name,
       false /*Sort*/);
   Add(In<ELFT>::RelaIplt);
 
-  In<ELFT>::Plt = make<PltSection<ELFT>>(Target->PltHeaderSize);
+  In<ELFT>::Plt = make<PltSection>(Target->PltHeaderSize);
   Add(In<ELFT>::Plt);
-  In<ELFT>::Iplt = make<PltSection<ELFT>>(0);
+  In<ELFT>::Iplt = make<PltSection>(0);
   Add(In<ELFT>::Iplt);
 
   if (!Config->Relocatable) {
     if (Config->EhFrameHdr) {
       In<ELFT>::EhFrameHdr = make<EhFrameHeader<ELFT>>();
       Add(In<ELFT>::EhFrameHdr);
     }
     In<ELFT>::EhFrame = make<EhFrameSection<ELFT>>();

 // 2. the ENTRY(symbol) command in a linker control script;
 // 3. the value of the symbol start, if present;
 // 4. the address of the first byte of the .text section, if present;
 // 5. the address 0.
 template <class ELFT> typename ELFT::uint Writer<ELFT>::getEntryAddr() {
   // Case 1, 2 or 3. As a special case, if the symbol is actually
   // a number, we'll use that number as an address.
   if (SymbolBody *B = Symtab<ELFT>::X->find(Config->Entry))
-    return B->getVA<ELFT>();
+    return B->getVA();
   uint64_t Addr;
   if (!Config->Entry.getAsInteger(0, Addr))
     return Addr;
 
   // Case 4
   if (OutputSection *Sec = findSection(".text")) {
     if (Config->WarnMissingEntry)
       warn("cannot find entry symbol " + Config->Entry + "; defaulting to 0x" +