Delete UnknownAddress. It is a perfectly valid symbol value.

[oota-llvm.git] / include / llvm / Object / MachO.h

diff --git a/include/llvm/Object/MachO.h b/include/llvm/Object/MachO.h
index d5e6929d99f032476e103d3670f695c6d777471c..489ecef5c99616a31ab79a2deaa52e839d32b849 100644 (file)
--- a/include/llvm/Object/MachO.h
+++ b/include/llvm/Object/MachO.h
@@ -190,27 +190,30 @@ public:
     const char *Ptr;      // Where in memory the load command is.
     MachO::load_command C; // The command itself.
   };
+  typedef SmallVector<LoadCommandInfo, 4> LoadCommandList;
+  typedef LoadCommandList::const_iterator load_command_iterator;
 
   MachOObjectFile(MemoryBufferRef Object, bool IsLittleEndian, bool Is64Bits,
                   std::error_code &EC);
 
   void moveSymbolNext(DataRefImpl &Symb) const override;
-  std::error_code getSymbolName(DataRefImpl Symb,
-                                StringRef &Res) const override;
+
+  uint64_t getNValue(DataRefImpl Sym) const;
+  ErrorOr<StringRef> getSymbolName(DataRefImpl Symb) const override;
 
   // MachO specific.
   std::error_code getIndirectName(DataRefImpl Symb, StringRef &Res) const;
   unsigned getSectionType(SectionRef Sec) const;
 
-  std::error_code getSymbolAddress(DataRefImpl Symb,
-                                   uint64_t &Res) const override;
+  ErrorOr<uint64_t> getSymbolAddress(DataRefImpl Symb) const override;
   uint32_t getSymbolAlignment(DataRefImpl Symb) const override;
-  uint64_t getSymbolSize(DataRefImpl Symb) const override;
-  std::error_code getSymbolType(DataRefImpl Symb,
-                                SymbolRef::Type &Res) const override;
+  uint64_t getCommonSymbolSizeImpl(DataRefImpl Symb) const override;
+  SymbolRef::Type getSymbolType(DataRefImpl Symb) const override;
   uint32_t getSymbolFlags(DataRefImpl Symb) const override;
   std::error_code getSymbolSection(DataRefImpl Symb,
                                    section_iterator &Res) const override;
+  unsigned getSymbolSectionID(SymbolRef Symb) const;
+  unsigned getSectionID(SectionRef Sec) const;
 
   void moveSectionNext(DataRefImpl &Sec) const override;
   std::error_code getSectionName(DataRefImpl Sec,
@@ -224,32 +227,23 @@ public:
   bool isSectionData(DataRefImpl Sec) const override;
   bool isSectionBSS(DataRefImpl Sec) const override;
   bool isSectionVirtual(DataRefImpl Sec) const override;
-  bool sectionContainsSymbol(DataRefImpl Sec, DataRefImpl Symb) const override;
   relocation_iterator section_rel_begin(DataRefImpl Sec) const override;
   relocation_iterator section_rel_end(DataRefImpl Sec) const override;
 
   void moveRelocationNext(DataRefImpl &Rel) const override;
-  std::error_code getRelocationAddress(DataRefImpl Rel,
-                                       uint64_t &Res) const override;
-  std::error_code getRelocationOffset(DataRefImpl Rel,
-                                      uint64_t &Res) const override;
+  uint64_t getRelocationOffset(DataRefImpl Rel) const override;
   symbol_iterator getRelocationSymbol(DataRefImpl Rel) const override;
-  section_iterator getRelocationSection(DataRefImpl Rel) const override;
-  std::error_code getRelocationType(DataRefImpl Rel,
-                                    uint64_t &Res) const override;
-  std::error_code
-  getRelocationTypeName(DataRefImpl Rel,
-                        SmallVectorImpl<char> &Result) const override;
-  std::error_code
-  getRelocationValueString(DataRefImpl Rel,
-                           SmallVectorImpl<char> &Result) const override;
-  std::error_code getRelocationHidden(DataRefImpl Rel,
-                                      bool &Result) const override;
+  section_iterator getRelocationSection(DataRefImpl Rel) const;
+  uint64_t getRelocationType(DataRefImpl Rel) const override;
+  void getRelocationTypeName(DataRefImpl Rel,
+                             SmallVectorImpl<char> &Result) const override;
   uint8_t getRelocationLength(DataRefImpl Rel) const;
 
   // MachO specific.
   std::error_code getLibraryShortNameByIndex(unsigned Index, StringRef &) const;
 
+  section_iterator getRelocationRelocatedSection(relocation_iterator Rel) const;
+
   // TODO: Would be useful to have an iterator based version
   // of the load command interface too.
 
@@ -273,10 +267,14 @@ public:
 
   dice_iterator begin_dices() const;
   dice_iterator end_dices() const;
-  
+
+  load_command_iterator begin_load_commands() const;
+  load_command_iterator end_load_commands() const;
+  iterator_range<load_command_iterator> load_commands() const;
+
   /// For use iterating over all exported symbols.
   iterator_range<export_iterator> exports() const;
-  
+
   /// For use examining a trie not in a MachOObjectFile.
   static iterator_range<export_iterator> exports(ArrayRef<uint8_t> Trie);
 
@@ -329,10 +327,6 @@ public:
   unsigned getAnyRelocationType(const MachO::any_relocation_info &RE) const;
   SectionRef getAnyRelocationSection(const MachO::any_relocation_info &RE) const;
 
-  // Walk load commands.
-  LoadCommandInfo getFirstLoadCommandInfo() const;
-  LoadCommandInfo getNextLoadCommandInfo(const LoadCommandInfo &L) const;
-
   // MachO specific structures.
   MachO::section getSection(DataRefImpl DRI) const;
   MachO::section_64 getSection64(DataRefImpl DRI) const;
@@ -386,8 +380,8 @@ public:
 
   MachO::any_relocation_info getRelocation(DataRefImpl Rel) const;
   MachO::data_in_code_entry getDice(DataRefImpl Rel) const;
-  MachO::mach_header getHeader() const;
-  MachO::mach_header_64 getHeader64() const;
+  const MachO::mach_header &getHeader() const;
+  const MachO::mach_header_64 &getHeader64() const;
   uint32_t
   getIndirectSymbolTableEntry(const MachO::dysymtab_command &DLC,
                               unsigned Index) const;
@@ -430,10 +424,17 @@ public:
   }
 
 private:
+  uint64_t getSymbolValueImpl(DataRefImpl Symb) const override;
+
+  union {
+    MachO::mach_header_64 Header64;
+    MachO::mach_header Header;
+  };
   typedef SmallVector<const char*, 1> SectionList;
   SectionList Sections;
   typedef SmallVector<const char*, 1> LibraryList;
   LibraryList Libraries;
+  LoadCommandList LoadCommands;
   typedef SmallVector<StringRef, 1> LibraryShortName;
   mutable LibraryShortName LibrariesShortNames;
   const char *SymtabLoadCmd;
@@ -472,7 +473,7 @@ inline std::error_code DiceRef::getOffset(uint32_t &Result) const {
     static_cast<const MachOObjectFile *>(OwningObject);
   MachO::data_in_code_entry Dice = MachOOF->getDice(DicePimpl);
   Result = Dice.offset;
-  return object_error::success;
+  return std::error_code();
 }
 
 inline std::error_code DiceRef::getLength(uint16_t &Result) const {
@@ -480,7 +481,7 @@ inline std::error_code DiceRef::getLength(uint16_t &Result) const {
     static_cast<const MachOObjectFile *>(OwningObject);
   MachO::data_in_code_entry Dice = MachOOF->getDice(DicePimpl);
   Result = Dice.length;
-  return object_error::success;
+  return std::error_code();
 }
 
 inline std::error_code DiceRef::getKind(uint16_t &Result) const {
@@ -488,7 +489,7 @@ inline std::error_code DiceRef::getKind(uint16_t &Result) const {
     static_cast<const MachOObjectFile *>(OwningObject);
   MachO::data_in_code_entry Dice = MachOOF->getDice(DicePimpl);
   Result = Dice.kind;
-  return object_error::success;
+  return std::error_code();
 }
 
 inline DataRefImpl DiceRef::getRawDataRefImpl() const {