From db8cb2223d5dbe5e31099a2d69d4a4c8eab4b7f4 Mon Sep 17 00:00:00 2001
From: Rafael Espindola <rafael.espindola@gmail.com>
Date: Sat, 5 Jul 2014 11:38:52 +0000
Subject: [PATCH] This only needs a StringRef. No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212371 91177308-0d34-0410-b5e6-96231b3b80d8
---
 include/llvm/Object/ELF.h           | 20 ++++++++++----------
 include/llvm/Object/ELFObjectFile.h |  2 +-
 lib/Object/ELFObjectFile.cpp        |  3 ++-
 3 files changed, 13 insertions(+), 12 deletions(-)

diff --git a/include/llvm/Object/ELF.h b/include/llvm/Object/ELF.h
index c968295b840..94420d1c568 100644
--- a/include/llvm/Object/ELF.h
+++ b/include/llvm/Object/ELF.h
@@ -40,11 +40,11 @@ StringRef getELFRelocationTypeName(uint32_t Machine, uint32_t Type);
 
 // Subclasses of ELFFile may need this for template instantiation
 inline std::pair<unsigned char, unsigned char>
-getElfArchType(MemoryBuffer *Object) {
-  if (Object->getBufferSize() < ELF::EI_NIDENT)
+getElfArchType(StringRef Object) {
+  if (Object.size() < ELF::EI_NIDENT)
     return std::make_pair((uint8_t)ELF::ELFCLASSNONE,(uint8_t)ELF::ELFDATANONE);
-  return std::make_pair((uint8_t) Object->getBufferStart()[ELF::EI_CLASS],
-                        (uint8_t) Object->getBufferStart()[ELF::EI_DATA]);
+  return std::make_pair((uint8_t)Object.begin()[ELF::EI_CLASS],
+                        (uint8_t)Object.begin()[ELF::EI_DATA]);
 }
 
 template <class ELFT>
@@ -230,10 +230,10 @@ private:
   typedef SmallVector<const Elf_Shdr *, 2> Sections_t;
   typedef DenseMap<unsigned, unsigned> IndexMap_t;
 
-  MemoryBuffer *Buf;
+  StringRef Buf;
 
   const uint8_t *base() const {
-    return reinterpret_cast<const uint8_t *>(Buf->getBufferStart());
+    return reinterpret_cast<const uint8_t *>(Buf.begin());
   }
 
   const Elf_Ehdr *Header;
@@ -317,7 +317,7 @@ public:
   std::pair<const Elf_Shdr *, const Elf_Sym *>
   getRelocationSymbol(const Elf_Shdr *RelSec, const RelT *Rel) const;
 
-  ELFFile(MemoryBuffer *Object, std::error_code &ec);
+  ELFFile(StringRef Object, std::error_code &ec);
 
   bool isMipsELF64() const {
     return Header->e_machine == ELF::EM_MIPS &&
@@ -536,7 +536,7 @@ ELFFile<ELFT>::getSymbol(uint32_t Index) const {
 template <class ELFT>
 ErrorOr<ArrayRef<uint8_t> >
 ELFFile<ELFT>::getSectionContents(const Elf_Shdr *Sec) const {
-  if (Sec->sh_offset + Sec->sh_size > Buf->getBufferSize())
+  if (Sec->sh_offset + Sec->sh_size > Buf.size())
     return object_error::parse_failed;
   const uint8_t *Start = base() + Sec->sh_offset;
   return ArrayRef<uint8_t>(Start, Sec->sh_size);
@@ -621,13 +621,13 @@ typename ELFFile<ELFT>::uintX_t ELFFile<ELFT>::getStringTableIndex() const {
 }
 
 template <class ELFT>
-ELFFile<ELFT>::ELFFile(MemoryBuffer *Object, std::error_code &ec)
+ELFFile<ELFT>::ELFFile(StringRef Object, std::error_code &ec)
     : Buf(Object), SectionHeaderTable(nullptr), dot_shstrtab_sec(nullptr),
       dot_strtab_sec(nullptr), dot_symtab_sec(nullptr),
       SymbolTableSectionHeaderIndex(nullptr), dot_gnu_version_sec(nullptr),
       dot_gnu_version_r_sec(nullptr), dot_gnu_version_d_sec(nullptr),
       dt_soname(nullptr) {
-  const uint64_t FileSize = Buf->getBufferSize();
+  const uint64_t FileSize = Buf.size();
 
   if (sizeof(Elf_Ehdr) > FileSize)
     // FIXME: Proper error handling.
diff --git a/include/llvm/Object/ELFObjectFile.h b/include/llvm/Object/ELFObjectFile.h
index deff409c5dd..cfb6b08c703 100644
--- a/include/llvm/Object/ELFObjectFile.h
+++ b/include/llvm/Object/ELFObjectFile.h
@@ -779,7 +779,7 @@ ELFObjectFile<ELFT>::ELFObjectFile(std::unique_ptr<MemoryBuffer> Object,
                                 support::little,
                             ELFT::Is64Bits),
                  std::move(Object)),
-      EF(Data.get(), EC) {}
+      EF(Data->getBuffer(), EC) {}
 
 template <class ELFT>
 basic_symbol_iterator ELFObjectFile<ELFT>::symbol_begin_impl() const {
diff --git a/lib/Object/ELFObjectFile.cpp b/lib/Object/ELFObjectFile.cpp
index 0e6230d08c4..4f0f60b6242 100644
--- a/lib/Object/ELFObjectFile.cpp
+++ b/lib/Object/ELFObjectFile.cpp
@@ -19,7 +19,8 @@ using namespace object;
 
 ErrorOr<ObjectFile *>
 ObjectFile::createELFObjectFile(std::unique_ptr<MemoryBuffer> &Obj) {
-  std::pair<unsigned char, unsigned char> Ident = getElfArchType(Obj.get());
+  std::pair<unsigned char, unsigned char> Ident =
+      getElfArchType(Obj->getBuffer());
   std::size_t MaxAlignment =
     1ULL << countTrailingZeros(uintptr_t(Obj->getBufferStart()));