From ee8648bdac07986a0f1ec897b02ec82a2f144d46 Mon Sep 17 00:00:00 2001
From: Dimitry Andric <dim@FreeBSD.org>
Date: Fri, 7 Aug 2015 23:01:33 +0000
Subject: Vendor import of llvm trunk r242221:
 https://llvm.org/svn/llvm-project/llvm/trunk@242221

---
 include/llvm/Object/ELFObjectFile.h | 58 +++++++------------------------------
 1 file changed, 11 insertions(+), 47 deletions(-)

(limited to 'include/llvm/Object/ELFObjectFile.h')

diff --git a/include/llvm/Object/ELFObjectFile.h b/include/llvm/Object/ELFObjectFile.h
index 5b9b113a2f0b..6e8ace427a20 100644
--- a/include/llvm/Object/ELFObjectFile.h
+++ b/include/llvm/Object/ELFObjectFile.h
@@ -196,9 +196,8 @@ protected:
 
   void moveSymbolNext(DataRefImpl &Symb) const override;
   ErrorOr<StringRef> getSymbolName(DataRefImpl Symb) const override;
-  std::error_code getSymbolAddress(DataRefImpl Symb,
-                                   uint64_t &Res) const override;
-  uint64_t getSymbolValue(DataRefImpl Symb) const override;
+  ErrorOr<uint64_t> getSymbolAddress(DataRefImpl Symb) const override;
+  uint64_t getSymbolValueImpl(DataRefImpl Symb) const override;
   uint32_t getSymbolAlignment(DataRefImpl Symb) const override;
   uint64_t getCommonSymbolSizeImpl(DataRefImpl Symb) const override;
   uint32_t getSymbolFlags(DataRefImpl Symb) const override;
@@ -226,7 +225,6 @@ protected:
   section_iterator getRelocatedSection(DataRefImpl Sec) const override;
 
   void moveRelocationNext(DataRefImpl &Rel) const override;
-  ErrorOr<uint64_t> getRelocationAddress(DataRefImpl Rel) const override;
   uint64_t getRelocationOffset(DataRefImpl Rel) const override;
   symbol_iterator getRelocationSymbol(DataRefImpl Rel) const override;
   uint64_t getRelocationType(DataRefImpl Rel) const override;
@@ -235,7 +233,6 @@ protected:
 
   uint32_t getSectionType(DataRefImpl Sec) const override;
   uint64_t getSectionFlags(DataRefImpl Sec) const override;
-  uint64_t getROffset(DataRefImpl Rel) const;
   StringRef getRelocationTypeName(uint32_t Type) const;
 
   /// \brief Get the relocation section that contains \a Rel.
@@ -276,11 +273,6 @@ protected:
     return DRI;
   }
 
-  Elf_Dyn_Iter toELFDynIter(DataRefImpl Dyn) const {
-    return Elf_Dyn_Iter(EF.begin_dynamic_table().getEntSize(),
-                        reinterpret_cast<const char *>(Dyn.p));
-  }
-
   DataRefImpl toDRI(Elf_Dyn_Iter Dyn) const {
     DataRefImpl DRI;
     DRI.p = reinterpret_cast<uintptr_t>(Dyn.get());
@@ -378,19 +370,13 @@ uint32_t ELFObjectFile<ELFT>::getSectionType(DataRefImpl Sec) const {
 }
 
 template <class ELFT>
-uint64_t ELFObjectFile<ELFT>::getSymbolValue(DataRefImpl Symb) const {
+uint64_t ELFObjectFile<ELFT>::getSymbolValueImpl(DataRefImpl Symb) const {
   const Elf_Sym *ESym = getSymbol(Symb);
-  switch (ESym->st_shndx) {
-  case ELF::SHN_COMMON:
-  case ELF::SHN_UNDEF:
-    return UnknownAddress;
-  case ELF::SHN_ABS:
-    return ESym->st_value;
-  }
-
-  const Elf_Ehdr *Header = EF.getHeader();
   uint64_t Ret = ESym->st_value;
+  if (ESym->st_shndx == ELF::SHN_ABS)
+    return Ret;
 
+  const Elf_Ehdr *Header = EF.getHeader();
   // Clear the ARM/Thumb or microMIPS indicator flag.
   if ((Header->e_machine == ELF::EM_ARM || Header->e_machine == ELF::EM_MIPS) &&
       ESym->getType() == ELF::STT_FUNC)
@@ -400,15 +386,15 @@ uint64_t ELFObjectFile<ELFT>::getSymbolValue(DataRefImpl Symb) const {
 }
 
 template <class ELFT>
-std::error_code ELFObjectFile<ELFT>::getSymbolAddress(DataRefImpl Symb,
-                                                      uint64_t &Result) const {
-  Result = getSymbolValue(Symb);
+ErrorOr<uint64_t>
+ELFObjectFile<ELFT>::getSymbolAddress(DataRefImpl Symb) const {
+  uint64_t Result = getSymbolValue(Symb);
   const Elf_Sym *ESym = getSymbol(Symb);
   switch (ESym->st_shndx) {
   case ELF::SHN_COMMON:
   case ELF::SHN_UNDEF:
   case ELF::SHN_ABS:
-    return std::error_code();
+    return Result;
   }
 
   const Elf_Ehdr *Header = EF.getHeader();
@@ -422,7 +408,7 @@ std::error_code ELFObjectFile<ELFT>::getSymbolAddress(DataRefImpl Symb,
       Result += Section->sh_addr;
   }
 
-  return std::error_code();
+  return Result;
 }
 
 template <class ELFT>
@@ -688,32 +674,10 @@ ELFObjectFile<ELFT>::getRelocationSymbol(DataRefImpl Rel) const {
   return symbol_iterator(SymbolRef(SymbolData, this));
 }
 
-template <class ELFT>
-ErrorOr<uint64_t>
-ELFObjectFile<ELFT>::getRelocationAddress(DataRefImpl Rel) const {
-  uint64_t ROffset = getROffset(Rel);
-  const Elf_Ehdr *Header = EF.getHeader();
-
-  if (Header->e_type == ELF::ET_REL) {
-    const Elf_Shdr *RelocationSec = getRelSection(Rel);
-    ErrorOr<const Elf_Shdr *> RelocatedSec =
-        EF.getSection(RelocationSec->sh_info);
-    if (std::error_code EC = RelocatedSec.getError())
-      return EC;
-    return ROffset + (*RelocatedSec)->sh_addr;
-  }
-  return ROffset;
-}
-
 template <class ELFT>
 uint64_t ELFObjectFile<ELFT>::getRelocationOffset(DataRefImpl Rel) const {
   assert(EF.getHeader()->e_type == ELF::ET_REL &&
          "Only relocatable object files have relocation offsets");
-  return getROffset(Rel);
-}
-
-template <class ELFT>
-uint64_t ELFObjectFile<ELFT>::getROffset(DataRefImpl Rel) const {
   const Elf_Shdr *sec = getRelSection(Rel);
   if (sec->sh_type == ELF::SHT_REL)
     return getRel(Rel)->r_offset;
-- 
cgit v1.3