[PATCH] D26074: [ELF] Add getOffset to ELFSectionRef and enable LLVM casting for it

[Eugene Leviant via llvm-commits]

evgeny777 created this revision.
evgeny777 added reviewers: rafael, hans, grimar.
evgeny777 added subscribers: ikudrin, llvm-commits.
evgeny777 set the repository for this revision to rL LLVM.
evgeny777 added a project: lld.

Required for https://reviews.llvm.org/D26070


Repository:
  rL LLVM

https://reviews.llvm.org/D26074

Files:
  include/llvm/Object/ELFObjectFile.h


Index: include/llvm/Object/ELFObjectFile.h
===================================================================
--- include/llvm/Object/ELFObjectFile.h
+++ include/llvm/Object/ELFObjectFile.h
@@ -59,6 +59,7 @@
 
   virtual uint32_t getSectionType(DataRefImpl Sec) const = 0;
   virtual uint64_t getSectionFlags(DataRefImpl Sec) const = 0;
+  virtual uint64_t getSectionOffset(DataRefImpl Sec) const = 0;
 
   virtual ErrorOr<int64_t> getRelocationAddend(DataRefImpl Rel) const = 0;
 
@@ -90,6 +91,14 @@
   uint64_t getFlags() const {
     return getObject()->getSectionFlags(getRawDataRefImpl());
   }
+
+  uint64_t getOffset() const {
+    return getObject()->getSectionOffset(getRawDataRefImpl());
+  }
+
+  static inline bool classof(const SectionRef *v) {
+    return v->getObject()->isELF();
+  }
 };
 
 class elf_section_iterator : public section_iterator {
@@ -245,6 +254,7 @@
 
   uint32_t getSectionType(DataRefImpl Sec) const override;
   uint64_t getSectionFlags(DataRefImpl Sec) const override;
+  uint64_t getSectionOffset(DataRefImpl Sec) const override;
   StringRef getRelocationTypeName(uint32_t Type) const;
 
   /// \brief Get the relocation section that contains \a Rel.
@@ -381,6 +391,11 @@
 }
 
 template <class ELFT>
+uint64_t ELFObjectFile<ELFT>::getSectionOffset(DataRefImpl Sec) const {
+  return getSection(Sec)->sh_offset;
+}
+
+template <class ELFT>
 uint64_t ELFObjectFile<ELFT>::getSymbolValueImpl(DataRefImpl Symb) const {
   const Elf_Sym *ESym = getSymbol(Symb);
   uint64_t Ret = ESym->st_value;


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