Expose getFlags via ELFSectionRef.

llvm-svn: 240779

2 files changed, 15 insertions, 14 deletions

diff --git a/llvm/include/llvm/Object/ELFObjectFile.h b/llvm/include/llvm/Object/ELFObjectFile.h
index 889425c4d92..60a9f70f6ab 100644
--- a/llvm/include/llvm/Object/ELFObjectFile.h
+++ b/llvm/include/llvm/Object/ELFObjectFile.h
@@ -48,6 +48,7 @@ protected:
   virtual uint64_t getSymbolSize(DataRefImpl Symb) const = 0;
   virtual uint8_t getSymbolOther(DataRefImpl Symb) const = 0;
   virtual uint32_t getSectionType(DataRefImpl Sec) const = 0;
+  virtual uint64_t getSectionFlags(DataRefImpl Sec) const = 0;
 
 public:
   virtual ErrorOr<int64_t> getRelocationAddend(DataRefImpl Rel) const = 0;
@@ -59,8 +60,6 @@ public:
   typedef iterator_range<elf_symbol_iterator> elf_symbol_iterator_range;
   virtual elf_symbol_iterator_range getDynamicSymbolIterators() const = 0;
 
-  virtual uint64_t getSectionFlags(SectionRef Sec) const = 0;
-
   elf_symbol_iterator_range symbols() const;
 
   static inline bool classof(const Binary *v) { return v->isELF(); }
@@ -79,6 +78,10 @@ public:
   uint32_t getType() const {
     return getObject()->getSectionType(getRawDataRefImpl());
   }
+
+  uint64_t getFlags() const {
+    return getObject()->getSectionFlags(getRawDataRefImpl());
+  }
 };
 
 class ELFSymbolRef : public SymbolRef {
@@ -187,6 +190,7 @@ protected:
                         SmallVectorImpl<char> &Result) const override;
 
   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;
 
@@ -279,8 +283,6 @@ public:
   ErrorOr<int64_t> getRelocationAddend(DataRefImpl Rel) const override;
   bool hasRelocationAddend(DataRefImpl Rel) const override;
 
-  uint64_t getSectionFlags(SectionRef Sec) const override;
-
   uint8_t getBytesInAddress() const override;
   StringRef getFileFormatName() const override;
   unsigned getArch() const override;
@@ -325,9 +327,8 @@ std::error_code ELFObjectFile<ELFT>::getSymbolName(DataRefImpl Symb,
 }
 
 template <class ELFT>
-uint64_t ELFObjectFile<ELFT>::getSectionFlags(SectionRef Sec) const {
-  DataRefImpl DRI = Sec.getRawDataRefImpl();
-  return toELFShdrIter(DRI)->sh_flags;
+uint64_t ELFObjectFile<ELFT>::getSectionFlags(DataRefImpl Sec) const {
+  return toELFShdrIter(Sec)->sh_flags;
 }
 
 template <class ELFT>
diff --git a/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyld.cpp b/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyld.cpp
index fdb634e888c..489589ef1f8 100644
--- a/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyld.cpp
+++ b/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyld.cpp
@@ -266,10 +266,10 @@ computeAllocationSizeForSections(std::vector<uint64_t> &SectionSizes,
   return TotalSize;
 }
 
-static bool isRequiredForExecution(const SectionRef &Section) {
+static bool isRequiredForExecution(const SectionRef Section) {
   const ObjectFile *Obj = Section.getObject();
-  if (auto *ELFObj = dyn_cast<object::ELFObjectFileBase>(Obj))
-    return ELFObj->getSectionFlags(Section) & ELF::SHF_ALLOC;
+  if (isa<object::ELFObjectFileBase>(Obj))
+    return ELFSectionRef(Section).getFlags() & ELF::SHF_ALLOC;
   if (auto *COFFObj = dyn_cast<object::COFFObjectFile>(Obj)) {
     const coff_section *CoffSection = COFFObj->getCOFFSection(Section);
     // Avoid loading zero-sized COFF sections.
@@ -286,12 +286,12 @@ static bool isRequiredForExecution(const SectionRef &Section) {
   
   assert(isa<MachOObjectFile>(Obj));
   return true;
- }
+}
 
-static bool isReadOnlyData(const SectionRef &Section) {
+static bool isReadOnlyData(const SectionRef Section) {
   const ObjectFile *Obj = Section.getObject();
-  if (auto *ELFObj = dyn_cast<object::ELFObjectFileBase>(Obj))
-    return !(ELFObj->getSectionFlags(Section) &
+  if (isa<object::ELFObjectFileBase>(Obj))
+    return !(ELFSectionRef(Section).getFlags() &
              (ELF::SHF_WRITE | ELF::SHF_EXECINSTR));
   if (auto *COFFObj = dyn_cast<object::COFFObjectFile>(Obj))
     return ((COFFObj->getCOFFSection(Section)->Characteristics &