initial

thirdparty/clang/include/llvm/Object/Archive.h

@@ -0,0 +1,246 @@
+//===- Archive.h - ar archive file format -----------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file declares the ar archive file format class.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_OBJECT_ARCHIVE_H
+#define LLVM_OBJECT_ARCHIVE_H
+
+#include "llvm/ADT/SmallString.h"
+#include "llvm/ADT/StringRef.h"
+#include "llvm/ADT/Twine.h"
+#include "llvm/Object/Binary.h"
+#include "llvm/Support/DataTypes.h"
+#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/MemoryBuffer.h"
+
+namespace llvm {
+namespace object {
+struct ArchiveMemberHeader {
+  char Name[16];
+  char LastModified[12];
+  char UID[6];
+  char GID[6];
+  char AccessMode[8];
+  char Size[10]; ///< Size of data, not including header or padding.
+  char Terminator[2];
+
+  ///! Get the name without looking up long names.
+  llvm::StringRef getName() const {
+    char EndCond;
+    if (Name[0] == '/' || Name[0] == '#')
+      EndCond = ' ';
+    else
+      EndCond = '/';
+    llvm::StringRef::size_type end =
+        llvm::StringRef(Name, sizeof(Name)).find(EndCond);
+    if (end == llvm::StringRef::npos)
+      end = sizeof(Name);
+    assert(end <= sizeof(Name) && end > 0);
+    // Don't include the EndCond if there is one.
+    return llvm::StringRef(Name, end);
+  }
+
+  uint64_t getSize() const {
+    uint64_t ret;
+    if (llvm::StringRef(Size, sizeof(Size)).rtrim(" ").getAsInteger(10, ret))
+      llvm_unreachable("Size is not an integer.");
+    return ret;
+  }
+};
+
+static const ArchiveMemberHeader *ToHeader(const char *base) {
+  return reinterpret_cast<const ArchiveMemberHeader *>(base);
+}
+
+class Archive : public Binary {
+  virtual void anchor();
+public:
+  class Child {
+    const Archive *Parent;
+    /// \brief Includes header but not padding byte.
+    StringRef Data;
+    /// \brief Offset from Data to the start of the file.
+    uint16_t StartOfFile;
+
+  public:
+    Child(const Archive *p, StringRef d) : Parent(p), Data(d) {
+      if (!p || d.empty())
+        return;
+      // Setup StartOfFile and PaddingBytes.
+      StartOfFile = sizeof(ArchiveMemberHeader);
+      // Don't include attached name.
+      StringRef Name = ToHeader(Data.data())->getName();
+      if (Name.startswith("#1/")) {
+        uint64_t NameSize;
+        if (Name.substr(3).rtrim(" ").getAsInteger(10, NameSize))
+          llvm_unreachable("Long name length is not an integer");
+        StartOfFile += NameSize;
+      }
+    }
+
+    bool operator ==(const Child &other) const {
+      return (Parent == other.Parent) && (Data.begin() == other.Data.begin());
+    }
+
+    bool operator <(const Child &other) const {
+      return Data.begin() < other.Data.begin();
+    }
+
+    Child getNext() const {
+      size_t SpaceToSkip = Data.size();
+      // If it's odd, add 1 to make it even.
+      if (SpaceToSkip & 1)
+        ++SpaceToSkip;
+
+      const char *NextLoc = Data.data() + SpaceToSkip;
+
+      // Check to see if this is past the end of the archive.
+      if (NextLoc >= Parent->Data->getBufferEnd())
+        return Child(Parent, StringRef(0, 0));
+
+      size_t NextSize =
+          sizeof(ArchiveMemberHeader) + ToHeader(NextLoc)->getSize();
+
+      return Child(Parent, StringRef(NextLoc, NextSize));
+    }
+
+    error_code getName(StringRef &Result) const;
+    int getLastModified() const;
+    int getUID() const;
+    int getGID() const;
+    int getAccessMode() const;
+    /// \return the size of the archive member without the header or padding.
+    uint64_t getSize() const { return Data.size() - StartOfFile; }
+
+    StringRef getBuffer() const {
+      return StringRef(Data.data() + StartOfFile, getSize());
+    }
+
+    error_code getMemoryBuffer(OwningPtr<MemoryBuffer> &Result,
+                               bool FullPath = false) const {
+      StringRef Name;
+      if (error_code ec = getName(Name))
+        return ec;
+      SmallString<128> Path;
+      Result.reset(MemoryBuffer::getMemBuffer(
+          getBuffer(), FullPath ? (Twine(Parent->getFileName()) + "(" + Name +
+                                   ")").toStringRef(Path) : Name, false));
+      return error_code::success();
+    }
+
+    error_code getAsBinary(OwningPtr<Binary> &Result) const;
+  };
+
+  class child_iterator {
+    Child child;
+  public:
+    child_iterator() : child(Child(0, StringRef())) {}
+    child_iterator(const Child &c) : child(c) {}
+    const Child* operator->() const {
+      return &child;
+    }
+
+    bool operator==(const child_iterator &other) const {
+      return child == other.child;
+    }
+
+    bool operator!=(const child_iterator &other) const {
+      return !(*this == other);
+    }
+
+    bool operator <(const child_iterator &other) const {
+      return child < other.child;
+    }
+
+    child_iterator& operator++() {  // Preincrement
+      child = child.getNext();
+      return *this;
+    }
+  };
+
+  class Symbol {
+    const Archive *Parent;
+    uint32_t SymbolIndex;
+    uint32_t StringIndex; // Extra index to the string.
+
+  public:
+    bool operator ==(const Symbol &other) const {
+      return (Parent == other.Parent) && (SymbolIndex == other.SymbolIndex);
+    }
+
+    Symbol(const Archive *p, uint32_t symi, uint32_t stri)
+      : Parent(p)
+      , SymbolIndex(symi)
+      , StringIndex(stri) {}
+    error_code getName(StringRef &Result) const;
+    error_code getMember(child_iterator &Result) const;
+    Symbol getNext() const;
+  };
+
+  class symbol_iterator {
+    Symbol symbol;
+  public:
+    symbol_iterator(const Symbol &s) : symbol(s) {}
+    const Symbol *operator->() const {
+      return &symbol;
+    }
+
+    bool operator==(const symbol_iterator &other) const {
+      return symbol == other.symbol;
+    }
+
+    bool operator!=(const symbol_iterator &other) const {
+      return !(*this == other);
+    }
+
+    symbol_iterator& operator++() {  // Preincrement
+      symbol = symbol.getNext();
+      return *this;
+    }
+  };
+
+  Archive(MemoryBuffer *source, error_code &ec);
+
+  enum Kind {
+    K_GNU,
+    K_BSD,
+    K_COFF
+  };
+
+  Kind kind() const { 
+    return Format;
+  }
+
+  child_iterator begin_children(bool skip_internal = true) const;
+  child_iterator end_children() const;
+
+  symbol_iterator begin_symbols() const;
+  symbol_iterator end_symbols() const;
+
+  // Cast methods.
+  static inline bool classof(Binary const *v) {
+    return v->isArchive();
+  }
+
+  // check if a symbol is in the archive
+  child_iterator findSym(StringRef name) const;
+
+private:
+  child_iterator SymbolTable;
+  child_iterator StringTable;
+  Kind Format;
+};
+
+}
+}
+
+#endif

thirdparty/clang/include/llvm/Object/Binary.h

@@ -0,0 +1,121 @@
+//===- Binary.h - A generic binary file -------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file declares the Binary class.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_OBJECT_BINARY_H
+#define LLVM_OBJECT_BINARY_H
+
+#include "llvm/ADT/OwningPtr.h"
+#include "llvm/Object/Error.h"
+
+namespace llvm {
+
+class MemoryBuffer;
+class StringRef;
+
+namespace object {
+
+class Binary {
+private:
+  Binary() LLVM_DELETED_FUNCTION;
+  Binary(const Binary &other) LLVM_DELETED_FUNCTION;
+
+  unsigned int TypeID;
+
+protected:
+  MemoryBuffer *Data;
+
+  Binary(unsigned int Type, MemoryBuffer *Source);
+
+  enum {
+    ID_Archive,
+    // Object and children.
+    ID_StartObjects,
+    ID_COFF,
+
+    ID_ELF32L, // ELF 32-bit, little endian
+    ID_ELF32B, // ELF 32-bit, big endian
+    ID_ELF64L, // ELF 64-bit, little endian
+    ID_ELF64B, // ELF 64-bit, big endian
+
+    ID_MachO32L, // MachO 32-bit, little endian
+    ID_MachO32B, // MachO 32-bit, big endian
+    ID_MachO64L, // MachO 64-bit, little endian
+    ID_MachO64B, // MachO 64-bit, big endian
+
+    ID_EndObjects
+  };
+
+  static inline unsigned int getELFType(bool isLE, bool is64Bits) {
+    if (isLE)
+      return is64Bits ? ID_ELF64L : ID_ELF32L;
+    else
+      return is64Bits ? ID_ELF64B : ID_ELF32B;
+  }
+
+  static unsigned int getMachOType(bool isLE, bool is64Bits) {
+    if (isLE)
+      return is64Bits ? ID_MachO64L : ID_MachO32L;
+    else
+      return is64Bits ? ID_MachO64B : ID_MachO32B;
+  }
+
+public:
+  virtual ~Binary();
+
+  StringRef getData() const;
+  StringRef getFileName() const;
+
+  // Cast methods.
+  unsigned int getType() const { return TypeID; }
+
+  // Convenience methods
+  bool isObject() const {
+    return TypeID > ID_StartObjects && TypeID < ID_EndObjects;
+  }
+
+  bool isArchive() const {
+    return TypeID == ID_Archive;
+  }
+
+  bool isELF() const {
+    return TypeID >= ID_ELF32L && TypeID <= ID_ELF64B;
+  }
+
+  bool isMachO() const {
+    return TypeID >= ID_MachO32L && TypeID <= ID_MachO64B;
+  }
+
+  bool isCOFF() const {
+    return TypeID == ID_COFF;
+  }
+
+  bool isLittleEndian() const {
+    return !(TypeID == ID_ELF32B || TypeID == ID_ELF64B ||
+             TypeID == ID_MachO32B || TypeID == ID_MachO64B);
+  }
+};
+
+/// @brief Create a Binary from Source, autodetecting the file type.
+///
+/// @param Source The data to create the Binary from. Ownership is transferred
+///        to Result if successful. If an error is returned, Source is destroyed
+///        by createBinary before returning.
+/// @param Result A pointer to the resulting Binary if no error occured.
+error_code createBinary(MemoryBuffer *Source, OwningPtr<Binary> &Result);
+
+error_code createBinary(StringRef Path, OwningPtr<Binary> &Result);
+
+}
+}
+
+#endif

thirdparty/clang/include/llvm/Object/COFF.h

@@ -0,0 +1,207 @@
+//===- COFF.h - COFF object file implementation -----------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file declares the COFFObjectFile class.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_OBJECT_COFF_H
+#define LLVM_OBJECT_COFF_H
+
+#include "llvm/Object/ObjectFile.h"
+#include "llvm/Support/COFF.h"
+#include "llvm/Support/Endian.h"
+
+namespace llvm {
+  template <typename T>
+  class ArrayRef;
+
+namespace object {
+
+struct coff_file_header {
+  support::ulittle16_t Machine;
+  support::ulittle16_t NumberOfSections;
+  support::ulittle32_t TimeDateStamp;
+  support::ulittle32_t PointerToSymbolTable;
+  support::ulittle32_t NumberOfSymbols;
+  support::ulittle16_t SizeOfOptionalHeader;
+  support::ulittle16_t Characteristics;
+};
+
+struct coff_symbol {
+  struct StringTableOffset {
+    support::ulittle32_t Zeroes;
+    support::ulittle32_t Offset;
+  };
+
+  union {
+    char ShortName[8];
+    StringTableOffset Offset;
+  } Name;
+
+  support::ulittle32_t Value;
+  support::little16_t SectionNumber;
+
+  support::ulittle16_t Type;
+
+  support::ulittle8_t  StorageClass;
+  support::ulittle8_t  NumberOfAuxSymbols;
+
+  uint8_t getBaseType() const {
+    return Type & 0x0F;
+  }
+
+  uint8_t getComplexType() const {
+    return (Type & 0xF0) >> 4;
+  }
+};
+
+struct coff_section {
+  char Name[8];
+  support::ulittle32_t VirtualSize;
+  support::ulittle32_t VirtualAddress;
+  support::ulittle32_t SizeOfRawData;
+  support::ulittle32_t PointerToRawData;
+  support::ulittle32_t PointerToRelocations;
+  support::ulittle32_t PointerToLinenumbers;
+  support::ulittle16_t NumberOfRelocations;
+  support::ulittle16_t NumberOfLinenumbers;
+  support::ulittle32_t Characteristics;
+};
+
+struct coff_relocation {
+  support::ulittle32_t VirtualAddress;
+  support::ulittle32_t SymbolTableIndex;
+  support::ulittle16_t Type;
+};
+
+struct coff_aux_section_definition {
+  support::ulittle32_t Length;
+  support::ulittle16_t NumberOfRelocations;
+  support::ulittle16_t NumberOfLinenumbers;
+  support::ulittle32_t CheckSum;
+  support::ulittle16_t Number;
+  support::ulittle8_t Selection;
+  char Unused[3];
+};
+
+class COFFObjectFile : public ObjectFile {
+private:
+  const coff_file_header *Header;
+  const coff_section     *SectionTable;
+  const coff_symbol      *SymbolTable;
+  const char             *StringTable;
+        uint32_t          StringTableSize;
+
+        error_code        getString(uint32_t offset, StringRef &Res) const;
+
+  const coff_symbol      *toSymb(DataRefImpl Symb) const;
+  const coff_section     *toSec(DataRefImpl Sec) const;
+  const coff_relocation  *toRel(DataRefImpl Rel) const;
+
+protected:
+  virtual error_code getSymbolNext(DataRefImpl Symb, SymbolRef &Res) const;
+  virtual error_code getSymbolName(DataRefImpl Symb, StringRef &Res) const;
+  virtual error_code getSymbolFileOffset(DataRefImpl Symb, uint64_t &Res) const;
+  virtual error_code getSymbolAddress(DataRefImpl Symb, uint64_t &Res) const;
+  virtual error_code getSymbolSize(DataRefImpl Symb, uint64_t &Res) const;
+  virtual error_code getSymbolNMTypeChar(DataRefImpl Symb, char &Res) const;
+  virtual error_code getSymbolFlags(DataRefImpl Symb, uint32_t &Res) const;
+  virtual error_code getSymbolType(DataRefImpl Symb, SymbolRef::Type &Res) const;
+  virtual error_code getSymbolSection(DataRefImpl Symb,
+                                      section_iterator &Res) const;
+  virtual error_code getSymbolValue(DataRefImpl Symb, uint64_t &Val) const;
+
+  virtual error_code getSectionNext(DataRefImpl Sec, SectionRef &Res) const;
+  virtual error_code getSectionName(DataRefImpl Sec, StringRef &Res) const;
+  virtual error_code getSectionAddress(DataRefImpl Sec, uint64_t &Res) const;
+  virtual error_code getSectionSize(DataRefImpl Sec, uint64_t &Res) const;
+  virtual error_code getSectionContents(DataRefImpl Sec, StringRef &Res) const;
+  virtual error_code getSectionAlignment(DataRefImpl Sec, uint64_t &Res) const;
+  virtual error_code isSectionText(DataRefImpl Sec, bool &Res) const;
+  virtual error_code isSectionData(DataRefImpl Sec, bool &Res) const;
+  virtual error_code isSectionBSS(DataRefImpl Sec, bool &Res) const;
+  virtual error_code isSectionVirtual(DataRefImpl Sec, bool &Res) const;
+  virtual error_code isSectionZeroInit(DataRefImpl Sec, bool &Res) const;
+  virtual error_code isSectionReadOnlyData(DataRefImpl Sec, bool &Res) const;
+  virtual error_code isSectionRequiredForExecution(DataRefImpl Sec,
+                                                   bool &Res) const;
+  virtual error_code sectionContainsSymbol(DataRefImpl Sec, DataRefImpl Symb,
+                                           bool &Result) const;
+  virtual relocation_iterator getSectionRelBegin(DataRefImpl Sec) const;
+  virtual relocation_iterator getSectionRelEnd(DataRefImpl Sec) const;
+
+  virtual error_code getRelocationNext(DataRefImpl Rel,
+                                       RelocationRef &Res) const;
+  virtual error_code getRelocationAddress(DataRefImpl Rel,
+                                          uint64_t &Res) const;
+  virtual error_code getRelocationOffset(DataRefImpl Rel,
+                                         uint64_t &Res) const;
+  virtual error_code getRelocationSymbol(DataRefImpl Rel,
+                                         SymbolRef &Res) const;
+  virtual error_code getRelocationType(DataRefImpl Rel,
+                                       uint64_t &Res) const;
+  virtual error_code getRelocationTypeName(DataRefImpl Rel,
+                                           SmallVectorImpl<char> &Result) const;
+  virtual error_code getRelocationAdditionalInfo(DataRefImpl Rel,
+                                                 int64_t &Res) const;
+  virtual error_code getRelocationValueString(DataRefImpl Rel,
+                                           SmallVectorImpl<char> &Result) const;
+
+  virtual error_code getLibraryNext(DataRefImpl LibData,
+                                    LibraryRef &Result) const;
+  virtual error_code getLibraryPath(DataRefImpl LibData,
+                                    StringRef &Result) const;
+
+public:
+  COFFObjectFile(MemoryBuffer *Object, error_code &ec);
+  virtual symbol_iterator begin_symbols() const;
+  virtual symbol_iterator end_symbols() const;
+  virtual symbol_iterator begin_dynamic_symbols() const;
+  virtual symbol_iterator end_dynamic_symbols() const;
+  virtual library_iterator begin_libraries_needed() const;
+  virtual library_iterator end_libraries_needed() const;
+  virtual section_iterator begin_sections() const;
+  virtual section_iterator end_sections() const;
+
+  const coff_section *getCOFFSection(section_iterator &It) const;
+  const coff_symbol *getCOFFSymbol(symbol_iterator &It) const;
+  const coff_relocation *getCOFFRelocation(relocation_iterator &It) const;
+  
+  virtual uint8_t getBytesInAddress() const;
+  virtual StringRef getFileFormatName() const;
+  virtual unsigned getArch() const;
+  virtual StringRef getLoadName() const;
+
+  error_code getHeader(const coff_file_header *&Res) const;
+  error_code getSection(int32_t index, const coff_section *&Res) const;
+  error_code getSymbol(uint32_t index, const coff_symbol *&Res) const;
+  template <typename T>
+  error_code getAuxSymbol(uint32_t index, const T *&Res) const {
+    const coff_symbol *s;
+    error_code ec = getSymbol(index, s);
+    Res = reinterpret_cast<const T*>(s);
+    return ec;
+  }
+  error_code getSymbolName(const coff_symbol *symbol, StringRef &Res) const;
+  ArrayRef<uint8_t> getSymbolAuxData(const coff_symbol *symbol) const;
+
+  error_code getSectionName(const coff_section *Sec, StringRef &Res) const;
+  error_code getSectionContents(const coff_section *Sec,
+                                ArrayRef<uint8_t> &Res) const;
+
+  static inline bool classof(const Binary *v) {
+    return v->isCOFF();
+  }
+};
+
+}
+}
+
+#endif

thirdparty/clang/include/llvm/Object/Error.h

@@ -0,0 +1,50 @@
+//===- Error.h - system_error extensions for Object -------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This declares a new error_category for the Object library.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_OBJECT_ERROR_H
+#define LLVM_OBJECT_ERROR_H
+
+#include "llvm/Support/system_error.h"
+
+namespace llvm {
+namespace object {
+
+const error_category &object_category();
+
+struct object_error {
+enum _ {
+  success = 0,
+  invalid_file_type,
+  parse_failed,
+  unexpected_eof
+};
+  _ v_;
+
+  object_error(_ v) : v_(v) {}
+  explicit object_error(int v) : v_(_(v)) {}
+  operator int() const {return v_;}
+};
+
+inline error_code make_error_code(object_error e) {
+  return error_code(static_cast<int>(e), object_category());
+}
+
+} // end namespace object.
+
+template <> struct is_error_code_enum<object::object_error> : true_type { };
+
+template <> struct is_error_code_enum<object::object_error::_> : true_type { };
+
+} // end namespace llvm.
+
+#endif

thirdparty/clang/include/llvm/Object/MachO.h

@@ -0,0 +1,162 @@
+//===- MachO.h - MachO object file implementation ---------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file declares the MachOObjectFile class, which implement the ObjectFile
+// interface for MachO files.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_OBJECT_MACHO_H
+#define LLVM_OBJECT_MACHO_H
+
+#include "llvm/ADT/ArrayRef.h"
+#include "llvm/ADT/SmallVector.h"
+#include "llvm/Object/MachOFormat.h"
+#include "llvm/Object/ObjectFile.h"
+#include "llvm/Support/MachO.h"
+#include "llvm/Support/raw_ostream.h"
+
+namespace llvm {
+namespace object {
+
+class MachOObjectFile : public ObjectFile {
+public:
+  struct LoadCommandInfo {
+    const char *Ptr;      // Where in memory the load command is.
+    macho::LoadCommand C; // The command itself.
+  };
+
+  MachOObjectFile(MemoryBuffer *Object, bool IsLittleEndian, bool Is64Bits,
+                  error_code &ec);
+
+  virtual error_code getSymbolNext(DataRefImpl Symb, SymbolRef &Res) const;
+  virtual error_code getSymbolName(DataRefImpl Symb, StringRef &Res) const;
+  virtual error_code getSymbolAddress(DataRefImpl Symb, uint64_t &Res) const;
+  virtual error_code getSymbolFileOffset(DataRefImpl Symb, uint64_t &Res) const;
+  virtual error_code getSymbolSize(DataRefImpl Symb, uint64_t &Res) const;
+  virtual error_code getSymbolType(DataRefImpl Symb,
+                                   SymbolRef::Type &Res) const;
+  virtual error_code getSymbolNMTypeChar(DataRefImpl Symb, char &Res) const;
+  virtual error_code getSymbolFlags(DataRefImpl Symb, uint32_t &Res) const;
+  virtual error_code getSymbolSection(DataRefImpl Symb,
+                                      section_iterator &Res) const;
+  virtual error_code getSymbolValue(DataRefImpl Symb, uint64_t &Val) const;
+
+  virtual error_code getSectionNext(DataRefImpl Sec, SectionRef &Res) const;
+  virtual error_code getSectionName(DataRefImpl Sec, StringRef &Res) const;
+  virtual error_code getSectionAddress(DataRefImpl Sec, uint64_t &Res) const;
+  virtual error_code getSectionSize(DataRefImpl Sec, uint64_t &Res) const;
+  virtual error_code getSectionContents(DataRefImpl Sec, StringRef &Res) const;
+  virtual error_code getSectionAlignment(DataRefImpl Sec, uint64_t &Res) const;
+  virtual error_code isSectionText(DataRefImpl Sec, bool &Res) const;
+  virtual error_code isSectionData(DataRefImpl Sec, bool &Res) const;
+  virtual error_code isSectionBSS(DataRefImpl Sec, bool &Res) const;
+  virtual error_code isSectionRequiredForExecution(DataRefImpl Sec,
+                                                   bool &Res) const;
+  virtual error_code isSectionVirtual(DataRefImpl Sec, bool &Res) const;
+  virtual error_code isSectionZeroInit(DataRefImpl Sec, bool &Res) const;
+  virtual error_code isSectionReadOnlyData(DataRefImpl Sec, bool &Res) const;
+  virtual error_code sectionContainsSymbol(DataRefImpl Sec, DataRefImpl Symb,
+                                           bool &Result) const;
+  virtual relocation_iterator getSectionRelBegin(DataRefImpl Sec) const;
+  virtual relocation_iterator getSectionRelEnd(DataRefImpl Sec) const;
+
+  virtual error_code getRelocationNext(DataRefImpl Rel,
+                                       RelocationRef &Res) const;
+  virtual error_code getRelocationAddress(DataRefImpl Rel, uint64_t &Res) const;
+  virtual error_code getRelocationOffset(DataRefImpl Rel, uint64_t &Res) const;
+  virtual error_code getRelocationSymbol(DataRefImpl Rel, SymbolRef &Res) const;
+  virtual error_code getRelocationType(DataRefImpl Rel, uint64_t &Res) const;
+  virtual error_code getRelocationTypeName(DataRefImpl Rel,
+                                           SmallVectorImpl<char> &Result) const;
+  virtual error_code getRelocationAdditionalInfo(DataRefImpl Rel,
+                                                 int64_t &Res) const;
+  virtual error_code getRelocationValueString(DataRefImpl Rel,
+                                           SmallVectorImpl<char> &Result) const;
+  virtual error_code getRelocationHidden(DataRefImpl Rel, bool &Result) const;
+
+  virtual error_code getLibraryNext(DataRefImpl LibData, LibraryRef &Res) const;
+  virtual error_code getLibraryPath(DataRefImpl LibData, StringRef &Res) const;
+
+  // TODO: Would be useful to have an iterator based version
+  // of the load command interface too.
+
+  virtual symbol_iterator begin_symbols() const;
+  virtual symbol_iterator end_symbols() const;
+
+  virtual symbol_iterator begin_dynamic_symbols() const;
+  virtual symbol_iterator end_dynamic_symbols() const;
+
+  virtual section_iterator begin_sections() const;
+  virtual section_iterator end_sections() const;
+
+  virtual library_iterator begin_libraries_needed() const;
+  virtual library_iterator end_libraries_needed() const;
+
+  virtual uint8_t getBytesInAddress() const;
+
+  virtual StringRef getFileFormatName() const;
+  virtual unsigned getArch() const;
+
+  virtual StringRef getLoadName() const;
+
+  // In a MachO file, sections have a segment name. This is used in the .o
+  // files. They have a single segment, but this field specifies which segment
+  // a section should be put in in the final object.
+  StringRef getSectionFinalSegmentName(DataRefImpl Sec) const;
+
+  // Names are stored as 16 bytes. These returns the raw 16 bytes without
+  // interpreting them as a C string.
+  ArrayRef<char> getSectionRawName(DataRefImpl Sec) const;
+  ArrayRef<char> getSectionRawFinalSegmentName(DataRefImpl Sec) const;
+
+  // MachO specific Info about relocations.
+  bool isRelocationScattered(const macho::RelocationEntry &RE) const;
+  unsigned getPlainRelocationSymbolNum(const macho::RelocationEntry &RE) const;
+  bool getPlainRelocationExternal(const macho::RelocationEntry &RE) const;
+  bool getScatteredRelocationScattered(const macho::RelocationEntry &RE) const;
+  uint32_t getScatteredRelocationValue(const macho::RelocationEntry &RE) const;
+  unsigned getAnyRelocationAddress(const macho::RelocationEntry &RE) const;
+  unsigned getAnyRelocationPCRel(const macho::RelocationEntry &RE) const;
+  unsigned getAnyRelocationLength(const macho::RelocationEntry &RE) const;
+  unsigned getAnyRelocationType(const macho::RelocationEntry &RE) const;
+
+  // Walk load commands.
+  LoadCommandInfo getFirstLoadCommandInfo() const;
+  LoadCommandInfo getNextLoadCommandInfo(const LoadCommandInfo &L) const;
+
+  // MachO specific structures.
+  macho::Section getSection(DataRefImpl DRI) const;
+  macho::Section64 getSection64(DataRefImpl DRI) const;
+  macho::SymbolTableEntry getSymbolTableEntry(DataRefImpl DRI) const;
+  macho::Symbol64TableEntry getSymbol64TableEntry(DataRefImpl DRI) const;
+  macho::LinkeditDataLoadCommand
+  getLinkeditDataLoadCommand(const LoadCommandInfo &L) const;
+  macho::RelocationEntry getRelocation(DataRefImpl Rel) const;
+  macho::Header getHeader() const;
+  macho::SymtabLoadCommand getSymtabLoadCommand() const;
+
+  bool is64Bit() const;
+  void ReadULEB128s(uint64_t Index, SmallVectorImpl<uint64_t> &Out) const;
+
+  static bool classof(const Binary *v) {
+    return v->isMachO();
+  }
+
+private:
+  typedef SmallVector<const char*, 1> SectionList;
+  SectionList Sections;
+  const char *SymtabLoadCmd;
+};
+
+}
+}
+
+#endif
+

thirdparty/clang/include/llvm/Object/MachOFormat.h

@@ -0,0 +1,415 @@
+//===- MachOFormat.h - Mach-O Format Structures And Constants ---*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file declares various structures and constants which are platform
+// independent and can be shared by any client which wishes to interact with
+// Mach object files.
+//
+// The definitions here are purposely chosen to match the LLVM style as opposed
+// to following the platform specific definition of the format.
+//
+// On a Mach system, see the <mach-o/...> includes for more information, in
+// particular <mach-o/loader.h>.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_OBJECT_MACHOFORMAT_H
+#define LLVM_OBJECT_MACHOFORMAT_H
+
+#include "llvm/Support/DataTypes.h"
+
+namespace llvm {
+namespace object {
+
+/// General Mach platform information.
+namespace mach {
+  /// @name CPU Type and Subtype Information
+  /// {
+
+  /// \brief Capability bits used in CPU type encoding.
+  enum CPUTypeFlagsMask {
+    CTFM_ArchMask =  0xFF000000,
+    CTFM_ArchABI64 = 0x01000000
+  };
+
+  /// \brief Machine type IDs used in CPU type encoding.
+  enum CPUTypeMachine {
+    CTM_i386      = 7,
+    CTM_x86_64    = CTM_i386 | CTFM_ArchABI64,
+    CTM_ARM       = 12,
+    CTM_SPARC     = 14,
+    CTM_PowerPC   = 18,
+    CTM_PowerPC64 = CTM_PowerPC | CTFM_ArchABI64
+  };
+
+  /// \brief Capability bits used in CPU subtype encoding.
+  enum CPUSubtypeFlagsMask {
+    CSFM_SubtypeMask =  0xFF000000,
+    CSFM_SubtypeLib64 = 0x80000000
+  };
+
+  /// \brief ARM Machine Subtypes.
+  enum CPUSubtypeARM {
+    CSARM_ALL    = 0,
+    CSARM_V4T    = 5,
+    CSARM_V6     = 6,
+    CSARM_V5TEJ  = 7,
+    CSARM_XSCALE = 8,
+    CSARM_V7     = 9,
+    CSARM_V7F    = 10,
+    CSARM_V7S    = 11,
+    CSARM_V7K    = 12,
+    CSARM_V6M    = 14,
+    CSARM_V7M    = 15,
+    CSARM_V7EM   = 16
+  };
+
+  /// \brief PowerPC Machine Subtypes.
+  enum CPUSubtypePowerPC {
+    CSPPC_ALL = 0
+  };
+
+  /// \brief SPARC Machine Subtypes.
+  enum CPUSubtypeSPARC {
+    CSSPARC_ALL = 0
+  };
+
+  /// \brief x86 Machine Subtypes.
+  enum CPUSubtypeX86 {
+    CSX86_ALL = 3
+  };
+
+  /// @}
+
+} // end namespace mach
+
+/// Format information for Mach object files.
+namespace macho {
+  /// \brief Constants for structure sizes.
+  enum StructureSizes {
+    Header32Size = 28,
+    Header64Size = 32,
+    SegmentLoadCommand32Size = 56,
+    SegmentLoadCommand64Size = 72,
+    Section32Size = 68,
+    Section64Size = 80,
+    SymtabLoadCommandSize = 24,
+    DysymtabLoadCommandSize = 80,
+    Nlist32Size = 12,
+    Nlist64Size = 16,
+    RelocationInfoSize = 8,
+    LinkeditLoadCommandSize = 16
+  };
+
+  /// \brief Constants for header magic field.
+  enum HeaderMagic {
+    HM_Object32 = 0xFEEDFACE,  ///< 32-bit mach object file
+    HM_Object64 = 0xFEEDFACF,  ///< 64-bit mach object file
+    HM_Universal = 0xCAFEBABE  ///< Universal object file
+  };
+
+  /// \brief Header common to all Mach object files.
+  struct Header {
+    uint32_t Magic;
+    uint32_t CPUType;
+    uint32_t CPUSubtype;
+    uint32_t FileType;
+    uint32_t NumLoadCommands;
+    uint32_t SizeOfLoadCommands;
+    uint32_t Flags;
+  };
+
+  /// \brief Extended header for 64-bit object files.
+  struct Header64Ext {
+    uint32_t Reserved;
+  };
+
+  // See <mach-o/loader.h>.
+  enum HeaderFileType {
+    HFT_Object = 0x1
+  };
+
+  enum HeaderFlags {
+    HF_SubsectionsViaSymbols = 0x2000
+  };
+
+  enum LoadCommandType {
+    LCT_Segment = 0x1,
+    LCT_Symtab = 0x2,
+    LCT_Dysymtab = 0xb,
+    LCT_Segment64 = 0x19,
+    LCT_UUID = 0x1b,
+    LCT_CodeSignature = 0x1d,
+    LCT_SegmentSplitInfo = 0x1e,
+    LCT_FunctionStarts = 0x26,
+    LCT_DataInCode = 0x29,
+    LCT_LinkerOptions = 0x2D
+  };
+
+  /// \brief Load command structure.
+  struct LoadCommand {
+    uint32_t Type;
+    uint32_t Size;
+  };
+
+  /// @name Load Command Structures
+  /// @{
+
+  struct SegmentLoadCommand {
+    uint32_t Type;
+    uint32_t Size;
+    char Name[16];
+    uint32_t VMAddress;
+    uint32_t VMSize;
+    uint32_t FileOffset;
+    uint32_t FileSize;
+    uint32_t MaxVMProtection;
+    uint32_t InitialVMProtection;
+    uint32_t NumSections;
+    uint32_t Flags;
+  };
+
+  struct Segment64LoadCommand {
+    uint32_t Type;
+    uint32_t Size;
+    char Name[16];
+    uint64_t VMAddress;
+    uint64_t VMSize;
+    uint64_t FileOffset;
+    uint64_t FileSize;
+    uint32_t MaxVMProtection;
+    uint32_t InitialVMProtection;
+    uint32_t NumSections;
+    uint32_t Flags;
+  };
+
+  struct SymtabLoadCommand {
+    uint32_t Type;
+    uint32_t Size;
+    uint32_t SymbolTableOffset;
+    uint32_t NumSymbolTableEntries;
+    uint32_t StringTableOffset;
+    uint32_t StringTableSize;
+  };
+
+  struct DysymtabLoadCommand {
+    uint32_t Type;
+    uint32_t Size;
+
+    uint32_t LocalSymbolsIndex;
+    uint32_t NumLocalSymbols;
+
+    uint32_t ExternalSymbolsIndex;
+    uint32_t NumExternalSymbols;
+
+    uint32_t UndefinedSymbolsIndex;
+    uint32_t NumUndefinedSymbols;
+
+    uint32_t TOCOffset;
+    uint32_t NumTOCEntries;
+
+    uint32_t ModuleTableOffset;
+    uint32_t NumModuleTableEntries;
+
+    uint32_t ReferenceSymbolTableOffset;
+    uint32_t NumReferencedSymbolTableEntries;
+
+    uint32_t IndirectSymbolTableOffset;
+    uint32_t NumIndirectSymbolTableEntries;
+
+    uint32_t ExternalRelocationTableOffset;
+    uint32_t NumExternalRelocationTableEntries;
+
+    uint32_t LocalRelocationTableOffset;
+    uint32_t NumLocalRelocationTableEntries;
+  };
+
+  struct LinkeditDataLoadCommand {
+    uint32_t Type;
+    uint32_t Size;
+    uint32_t DataOffset;
+    uint32_t DataSize;
+  };
+
+  struct LinkerOptionsLoadCommand {
+    uint32_t Type;
+    uint32_t Size;
+    uint32_t Count;
+    // Load command is followed by Count number of zero-terminated UTF8 strings,
+    // and then zero-filled to be 4-byte aligned.
+  };
+
+  /// @}
+  /// @name Section Data
+  /// @{
+
+  enum SectionFlags {
+    SF_PureInstructions = 0x80000000
+  };
+
+  struct Section {
+    char Name[16];
+    char SegmentName[16];
+    uint32_t Address;
+    uint32_t Size;
+    uint32_t Offset;
+    uint32_t Align;
+    uint32_t RelocationTableOffset;
+    uint32_t NumRelocationTableEntries;
+    uint32_t Flags;
+    uint32_t Reserved1;
+    uint32_t Reserved2;
+  };
+  struct Section64 {
+    char Name[16];
+    char SegmentName[16];
+    uint64_t Address;
+    uint64_t Size;
+    uint32_t Offset;
+    uint32_t Align;
+    uint32_t RelocationTableOffset;
+    uint32_t NumRelocationTableEntries;
+    uint32_t Flags;
+    uint32_t Reserved1;
+    uint32_t Reserved2;
+    uint32_t Reserved3;
+  };
+
+  /// @}
+  /// @name Symbol Table Entries
+  /// @{
+
+  struct SymbolTableEntry {
+    uint32_t StringIndex;
+    uint8_t Type;
+    uint8_t SectionIndex;
+    uint16_t Flags;
+    uint32_t Value;
+  };
+  // Despite containing a uint64_t, this structure is only 4-byte aligned within
+  // a MachO file.
+#pragma pack(push)
+#pragma pack(4)
+  struct Symbol64TableEntry {
+    uint32_t StringIndex;
+    uint8_t Type;
+    uint8_t SectionIndex;
+    uint16_t Flags;
+    uint64_t Value;
+  };
+#pragma pack(pop)
+
+  /// @}
+  /// @name Data-in-code Table Entry
+  /// @{
+
+  // See <mach-o/loader.h>.
+  enum DataRegionType { Data = 1, JumpTable8, JumpTable16, JumpTable32 };
+  struct DataInCodeTableEntry {
+    uint32_t Offset;  /* from mach_header to start of data region */
+    uint16_t Length;  /* number of bytes in data region */
+    uint16_t Kind;    /* a DataRegionType value  */
+  };
+
+  /// @}
+  /// @name Indirect Symbol Table
+  /// @{
+
+  struct IndirectSymbolTableEntry {
+    uint32_t Index;
+  };
+
+  /// @}
+  /// @name Relocation Data
+  /// @{
+
+  struct RelocationEntry {
+    uint32_t Word0;
+    uint32_t Word1;
+  };
+
+  /// @}
+
+  // See <mach-o/nlist.h>.
+  enum SymbolTypeType {
+    STT_Undefined = 0x00,
+    STT_Absolute  = 0x02,
+    STT_Section   = 0x0e
+  };
+
+  enum SymbolTypeFlags {
+    // If any of these bits are set, then the entry is a stab entry number (see
+    // <mach-o/stab.h>. Otherwise the other masks apply.
+    STF_StabsEntryMask = 0xe0,
+
+    STF_TypeMask       = 0x0e,
+    STF_External       = 0x01,
+    STF_PrivateExtern  = 0x10
+  };
+
+  /// IndirectSymbolFlags - Flags for encoding special values in the indirect
+  /// symbol entry.
+  enum IndirectSymbolFlags {
+    ISF_Local    = 0x80000000,
+    ISF_Absolute = 0x40000000
+  };
+
+  /// RelocationFlags - Special flags for addresses.
+  enum RelocationFlags {
+    RF_Scattered = 0x80000000
+  };
+
+  /// Common relocation info types.
+  enum RelocationInfoType {
+    RIT_Vanilla             = 0,
+    RIT_Pair                = 1,
+    RIT_Difference          = 2
+  };
+
+  /// Generic relocation info types, which are shared by some (but not all)
+  /// platforms.
+  enum RelocationInfoType_Generic {
+    RIT_Generic_PreboundLazyPointer = 3,
+    RIT_Generic_LocalDifference     = 4,
+    RIT_Generic_TLV                 = 5
+  };
+
+  /// X86_64 uses its own relocation types.
+  enum RelocationInfoTypeX86_64 {
+    // Note that x86_64 doesn't even share the common relocation types.
+    RIT_X86_64_Unsigned   = 0,
+    RIT_X86_64_Signed     = 1,
+    RIT_X86_64_Branch     = 2,
+    RIT_X86_64_GOTLoad    = 3,
+    RIT_X86_64_GOT        = 4,
+    RIT_X86_64_Subtractor = 5,
+    RIT_X86_64_Signed1    = 6,
+    RIT_X86_64_Signed2    = 7,
+    RIT_X86_64_Signed4    = 8,
+    RIT_X86_64_TLV        = 9
+  };
+
+  /// ARM uses its own relocation types.
+  enum RelocationInfoTypeARM {
+    RIT_ARM_LocalDifference = 3,
+    RIT_ARM_PreboundLazyPointer = 4,
+    RIT_ARM_Branch24Bit = 5,
+    RIT_ARM_ThumbBranch22Bit = 6,
+    RIT_ARM_ThumbBranch32Bit = 7,
+    RIT_ARM_Half = 8,
+    RIT_ARM_HalfDifference = 9
+
+  };
+
+} // end namespace macho
+
+} // end namespace object
+} // end namespace llvm
+
+#endif

thirdparty/clang/include/llvm/Object/MachOObject.h

@@ -0,0 +1,212 @@
+//===- MachOObject.h - Mach-O Object File Wrapper ---------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_OBJECT_MACHOOBJECT_H
+#define LLVM_OBJECT_MACHOOBJECT_H
+
+#include "llvm/ADT/InMemoryStruct.h"
+#include "llvm/ADT/OwningPtr.h"
+#include "llvm/ADT/StringRef.h"
+#include "llvm/Object/MachOFormat.h"
+#include <string>
+
+namespace llvm {
+
+class MemoryBuffer;
+class raw_ostream;
+
+namespace object {
+
+/// \brief Wrapper object for manipulating Mach-O object files.
+///
+/// This class is designed to implement a full-featured, efficient, portable,
+/// and robust Mach-O interface to Mach-O object files. It does not attempt to
+/// smooth over rough edges in the Mach-O format or generalize access to object
+/// independent features.
+///
+/// The class is designed around accessing the Mach-O object which is expected
+/// to be fully loaded into memory.
+///
+/// This class is *not* suitable for concurrent use. For efficient operation,
+/// the class uses APIs which rely on the ability to cache the results of
+/// certain calls in internal objects which are not safe for concurrent
+/// access. This allows the API to be zero-copy on the common paths.
+//
+// FIXME: It would be cool if we supported a "paged" MemoryBuffer
+// implementation. This would allow us to implement a more sensible version of
+// MemoryObject which can work like a MemoryBuffer, but be more efficient for
+// objects which are in the current address space.
+class MachOObject {
+public:
+  struct LoadCommandInfo {
+    /// The load command information.
+    macho::LoadCommand Command;
+
+    /// The offset to the start of the load command in memory.
+    uint64_t Offset;
+  };
+
+private:
+  OwningPtr<MemoryBuffer> Buffer;
+
+  /// Whether the object is little endian.
+  bool IsLittleEndian;
+  /// Whether the object is 64-bit.
+  bool Is64Bit;
+  /// Whether the object is swapped endianness from the host.
+  bool IsSwappedEndian;
+  /// Whether the string table has been registered.
+  bool HasStringTable;
+
+  /// The cached information on the load commands.
+  LoadCommandInfo *LoadCommands;
+  mutable unsigned NumLoadedCommands;
+
+  /// The cached copy of the header.
+  macho::Header Header;
+  macho::Header64Ext Header64Ext;
+
+  /// Cache string table information.
+  StringRef StringTable;
+
+private:
+  MachOObject(MemoryBuffer *Buffer, bool IsLittleEndian, bool Is64Bit);
+
+public:
+  ~MachOObject();
+
+  /// \brief Load a Mach-O object from a MemoryBuffer object.
+  ///
+  /// \param Buffer - The buffer to load the object from. This routine takes
+  /// exclusive ownership of the buffer (which is passed to the returned object
+  /// on success).
+  /// \param ErrorStr [out] - If given, will be set to a user readable error
+  /// message on failure.
+  /// \returns The loaded object, or null on error.
+  static MachOObject *LoadFromBuffer(MemoryBuffer *Buffer,
+                                     std::string *ErrorStr = 0);
+
+  /// @name File Information
+  /// @{
+
+  bool isLittleEndian() const { return IsLittleEndian; }
+  bool isSwappedEndian() const { return IsSwappedEndian; }
+  bool is64Bit() const { return Is64Bit; }
+
+  unsigned getHeaderSize() const {
+    return Is64Bit ? macho::Header64Size : macho::Header32Size;
+  }
+
+  StringRef getData(size_t Offset, size_t Size) const;
+
+  /// @}
+  /// @name String Table Data
+  /// @{
+
+  StringRef getStringTableData() const {
+    assert(HasStringTable && "String table has not been registered!");
+    return StringTable;
+  }
+
+  StringRef getStringAtIndex(unsigned Index) const {
+    size_t End = getStringTableData().find('\0', Index);
+    return getStringTableData().slice(Index, End);
+  }
+
+  void RegisterStringTable(macho::SymtabLoadCommand &SLC);
+
+  /// @}
+  /// @name Object Header Access
+  /// @{
+
+  const macho::Header &getHeader() const { return Header; }
+  const macho::Header64Ext &getHeader64Ext() const {
+    assert(is64Bit() && "Invalid access!");
+    return Header64Ext;
+  }
+
+  /// @}
+  /// @name Object Structure Access
+  /// @{
+
+  // TODO: Would be useful to have an iterator based version
+  // of this.
+  /// \brief Retrieve the information for the given load command.
+  const LoadCommandInfo &getLoadCommandInfo(unsigned Index) const;
+
+  void ReadSegmentLoadCommand(
+    const LoadCommandInfo &LCI,
+    InMemoryStruct<macho::SegmentLoadCommand> &Res) const;
+  void ReadSegment64LoadCommand(
+    const LoadCommandInfo &LCI,
+    InMemoryStruct<macho::Segment64LoadCommand> &Res) const;
+  void ReadSymtabLoadCommand(
+    const LoadCommandInfo &LCI,
+    InMemoryStruct<macho::SymtabLoadCommand> &Res) const;
+  void ReadDysymtabLoadCommand(
+    const LoadCommandInfo &LCI,
+    InMemoryStruct<macho::DysymtabLoadCommand> &Res) const;
+  void ReadLinkeditDataLoadCommand(
+    const LoadCommandInfo &LCI,
+    InMemoryStruct<macho::LinkeditDataLoadCommand> &Res) const;
+  void ReadLinkerOptionsLoadCommand(
+    const LoadCommandInfo &LCI,
+    InMemoryStruct<macho::LinkerOptionsLoadCommand> &Res) const;
+  void ReadIndirectSymbolTableEntry(
+    const macho::DysymtabLoadCommand &DLC,
+    unsigned Index,
+    InMemoryStruct<macho::IndirectSymbolTableEntry> &Res) const;
+  void ReadSection(
+    const LoadCommandInfo &LCI,
+    unsigned Index,
+    InMemoryStruct<macho::Section> &Res) const;
+  void ReadSection64(
+    const LoadCommandInfo &LCI,
+    unsigned Index,
+    InMemoryStruct<macho::Section64> &Res) const;
+  void ReadRelocationEntry(
+    uint64_t RelocationTableOffset, unsigned Index,
+    InMemoryStruct<macho::RelocationEntry> &Res) const;
+  void ReadSymbolTableEntry(
+    uint64_t SymbolTableOffset, unsigned Index,
+    InMemoryStruct<macho::SymbolTableEntry> &Res) const;
+  void ReadSymbol64TableEntry(
+    uint64_t SymbolTableOffset, unsigned Index,
+    InMemoryStruct<macho::Symbol64TableEntry> &Res) const;
+  void ReadDataInCodeTableEntry(
+    uint64_t TableOffset, unsigned Index,
+    InMemoryStruct<macho::DataInCodeTableEntry> &Res) const;
+  void ReadULEB128s(uint64_t Index, SmallVectorImpl<uint64_t> &Out) const;
+
+  /// @}
+
+  /// @name Object Dump Facilities
+  /// @{
+  /// dump - Support for debugging, callable in GDB: V->dump()
+  //
+  void dump() const;
+  void dumpHeader() const;
+
+  /// print - Implement operator<< on Value.
+  ///
+  void print(raw_ostream &O) const;
+  void printHeader(raw_ostream &O) const;
+
+  /// @}
+};
+
+inline raw_ostream &operator<<(raw_ostream &OS, const MachOObject &V) {
+  V.print(OS);
+  return OS;
+}
+
+} // end namespace object
+} // end namespace llvm
+
+#endif

thirdparty/clang/include/llvm/Object/ObjectFile.h

@@ -0,0 +1,619 @@
+//===- ObjectFile.h - File format independent object file -------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file declares a file format independent ObjectFile class.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_OBJECT_OBJECTFILE_H
+#define LLVM_OBJECT_OBJECTFILE_H
+
+#include "llvm/ADT/StringRef.h"
+#include "llvm/Object/Binary.h"
+#include "llvm/Support/DataTypes.h"
+#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/MemoryBuffer.h"
+#include <cstring>
+#include <vector>
+
+namespace llvm {
+namespace object {
+
+class ObjectFile;
+
+union DataRefImpl {
+  struct {
+    // ELF needs this for relocations. This entire union should probably be a
+    // char[max(8, sizeof(uintptr_t))] and require the impl to cast.
+    uint16_t a, b;
+    uint32_t c;
+  } w;
+  struct {
+    uint32_t a, b;
+  } d;
+  uintptr_t p;
+  DataRefImpl() {
+    std::memset(this, 0, sizeof(DataRefImpl));
+  }
+};
+
+template<class content_type>
+class content_iterator {
+  content_type Current;
+public:
+  content_iterator(content_type symb)
+    : Current(symb) {}
+
+  const content_type* operator->() const {
+    return &Current;
+  }
+
+  const content_type &operator*() const {
+    return Current;
+  }
+
+  bool operator==(const content_iterator &other) const {
+    return Current == other.Current;
+  }
+
+  bool operator!=(const content_iterator &other) const {
+    return !(*this == other);
+  }
+
+  content_iterator& increment(error_code &err) {
+    content_type next;
+    if (error_code ec = Current.getNext(next))
+      err = ec;
+    else
+      Current = next;
+    return *this;
+  }
+};
+
+inline bool operator==(const DataRefImpl &a, const DataRefImpl &b) {
+  // Check bitwise identical. This is the only legal way to compare a union w/o
+  // knowing which member is in use.
+  return std::memcmp(&a, &b, sizeof(DataRefImpl)) == 0;
+}
+
+inline bool operator<(const DataRefImpl &a, const DataRefImpl &b) {
+  // Check bitwise identical. This is the only legal way to compare a union w/o
+  // knowing which member is in use.
+  return std::memcmp(&a, &b, sizeof(DataRefImpl)) < 0;
+}
+
+class SymbolRef;
+
+/// RelocationRef - This is a value type class that represents a single
+/// relocation in the list of relocations in the object file.
+class RelocationRef {
+  DataRefImpl RelocationPimpl;
+  const ObjectFile *OwningObject;
+
+public:
+  RelocationRef() : OwningObject(NULL) { }
+
+  RelocationRef(DataRefImpl RelocationP, const ObjectFile *Owner);
+
+  bool operator==(const RelocationRef &Other) const;
+
+  error_code getNext(RelocationRef &Result) const;
+
+  error_code getAddress(uint64_t &Result) const;
+  error_code getOffset(uint64_t &Result) const;
+  error_code getSymbol(SymbolRef &Result) const;
+  error_code getType(uint64_t &Result) const;
+
+  /// @brief Indicates whether this relocation should hidden when listing
+  /// relocations, usually because it is the trailing part of a multipart
+  /// relocation that will be printed as part of the leading relocation.
+  error_code getHidden(bool &Result) const;
+
+  /// @brief Get a string that represents the type of this relocation.
+  ///
+  /// This is for display purposes only.
+  error_code getTypeName(SmallVectorImpl<char> &Result) const;
+  error_code getAdditionalInfo(int64_t &Result) const;
+
+  /// @brief Get a string that represents the calculation of the value of this
+  ///        relocation.
+  ///
+  /// This is for display purposes only.
+  error_code getValueString(SmallVectorImpl<char> &Result) const;
+
+  DataRefImpl getRawDataRefImpl() const;
+};
+typedef content_iterator<RelocationRef> relocation_iterator;
+
+/// SectionRef - This is a value type class that represents a single section in
+/// the list of sections in the object file.
+class SectionRef {
+  friend class SymbolRef;
+  DataRefImpl SectionPimpl;
+  const ObjectFile *OwningObject;
+
+public:
+  SectionRef() : OwningObject(NULL) { }
+
+  SectionRef(DataRefImpl SectionP, const ObjectFile *Owner);
+
+  bool operator==(const SectionRef &Other) const;
+  bool operator<(const SectionRef &Other) const;
+
+  error_code getNext(SectionRef &Result) const;
+
+  error_code getName(StringRef &Result) const;
+  error_code getAddress(uint64_t &Result) const;
+  error_code getSize(uint64_t &Result) const;
+  error_code getContents(StringRef &Result) const;
+
+  /// @brief Get the alignment of this section as the actual value (not log 2).
+  error_code getAlignment(uint64_t &Result) const;
+
+  // FIXME: Move to the normalization layer when it's created.
+  error_code isText(bool &Result) const;
+  error_code isData(bool &Result) const;
+  error_code isBSS(bool &Result) const;
+  error_code isRequiredForExecution(bool &Result) const;
+  error_code isVirtual(bool &Result) const;
+  error_code isZeroInit(bool &Result) const;
+  error_code isReadOnlyData(bool &Result) const;
+
+  error_code containsSymbol(SymbolRef S, bool &Result) const;
+
+  relocation_iterator begin_relocations() const;
+  relocation_iterator end_relocations() const;
+
+  DataRefImpl getRawDataRefImpl() const;
+};
+typedef content_iterator<SectionRef> section_iterator;
+
+/// SymbolRef - This is a value type class that represents a single symbol in
+/// the list of symbols in the object file.
+class SymbolRef {
+  friend class SectionRef;
+  DataRefImpl SymbolPimpl;
+  const ObjectFile *OwningObject;
+
+public:
+  SymbolRef() : OwningObject(NULL) { }
+
+  enum Type {
+    ST_Unknown, // Type not specified
+    ST_Data,
+    ST_Debug,
+    ST_File,
+    ST_Function,
+    ST_Other
+  };
+
+  enum Flags {
+    SF_None            = 0,
+    SF_Undefined       = 1U << 0,  // Symbol is defined in another object file
+    SF_Global          = 1U << 1,  // Global symbol
+    SF_Weak            = 1U << 2,  // Weak symbol
+    SF_Absolute        = 1U << 3,  // Absolute symbol
+    SF_ThreadLocal     = 1U << 4,  // Thread local symbol
+    SF_Common          = 1U << 5,  // Symbol has common linkage
+    SF_FormatSpecific  = 1U << 31  // Specific to the object file format
+                                   // (e.g. section symbols)
+  };
+
+  SymbolRef(DataRefImpl SymbolP, const ObjectFile *Owner);
+
+  bool operator==(const SymbolRef &Other) const;
+  bool operator<(const SymbolRef &Other) const;
+
+  error_code getNext(SymbolRef &Result) const;
+
+  error_code getName(StringRef &Result) const;
+  /// Returns the symbol virtual address (i.e. address at which it will be
+  /// mapped).
+  error_code getAddress(uint64_t &Result) const;
+  error_code getFileOffset(uint64_t &Result) const;
+  error_code getSize(uint64_t &Result) const;
+  error_code getType(SymbolRef::Type &Result) const;
+
+  /// Returns the ascii char that should be displayed in a symbol table dump via
+  /// nm for this symbol.
+  error_code getNMTypeChar(char &Result) const;
+
+  /// Get symbol flags (bitwise OR of SymbolRef::Flags)
+  error_code getFlags(uint32_t &Result) const;
+
+  /// @brief Return true for common symbols such as uninitialized globals
+  error_code isCommon(bool &Result) const;
+
+  /// @brief Get section this symbol is defined in reference to. Result is
+  /// end_sections() if it is undefined or is an absolute symbol.
+  error_code getSection(section_iterator &Result) const;
+
+  /// @brief Get value of the symbol in the symbol table.
+  error_code getValue(uint64_t &Val) const;
+
+  DataRefImpl getRawDataRefImpl() const;
+};
+typedef content_iterator<SymbolRef> symbol_iterator;
+
+/// LibraryRef - This is a value type class that represents a single library in
+/// the list of libraries needed by a shared or dynamic object.
+class LibraryRef {
+  friend class SectionRef;
+  DataRefImpl LibraryPimpl;
+  const ObjectFile *OwningObject;
+
+public:
+  LibraryRef() : OwningObject(NULL) { }
+
+  LibraryRef(DataRefImpl LibraryP, const ObjectFile *Owner);
+
+  bool operator==(const LibraryRef &Other) const;
+  bool operator<(const LibraryRef &Other) const;
+
+  error_code getNext(LibraryRef &Result) const;
+
+  // Get the path to this library, as stored in the object file.
+  error_code getPath(StringRef &Result) const;
+
+  DataRefImpl getRawDataRefImpl() const;
+};
+typedef content_iterator<LibraryRef> library_iterator;
+
+const uint64_t UnknownAddressOrSize = ~0ULL;
+
+/// ObjectFile - This class is the base class for all object file types.
+/// Concrete instances of this object are created by createObjectFile, which
+/// figures out which type to create.
+class ObjectFile : public Binary {
+  virtual void anchor();
+  ObjectFile() LLVM_DELETED_FUNCTION;
+  ObjectFile(const ObjectFile &other) LLVM_DELETED_FUNCTION;
+
+protected:
+  ObjectFile(unsigned int Type, MemoryBuffer *source);
+
+  const uint8_t *base() const {
+    return reinterpret_cast<const uint8_t *>(Data->getBufferStart());
+  }
+
+  // These functions are for SymbolRef to call internally. The main goal of
+  // this is to allow SymbolRef::SymbolPimpl to point directly to the symbol
+  // entry in the memory mapped object file. SymbolPimpl cannot contain any
+  // virtual functions because then it could not point into the memory mapped
+  // file.
+  //
+  // Implementations assume that the DataRefImpl is valid and has not been
+  // modified externally. It's UB otherwise.
+  friend class SymbolRef;
+  virtual error_code getSymbolNext(DataRefImpl Symb, SymbolRef &Res) const = 0;
+  virtual error_code getSymbolName(DataRefImpl Symb, StringRef &Res) const = 0;
+  virtual error_code getSymbolAddress(DataRefImpl Symb, uint64_t &Res) const = 0;
+  virtual error_code getSymbolFileOffset(DataRefImpl Symb, uint64_t &Res)const=0;
+  virtual error_code getSymbolSize(DataRefImpl Symb, uint64_t &Res) const = 0;
+  virtual error_code getSymbolType(DataRefImpl Symb,
+                                   SymbolRef::Type &Res) const = 0;
+  virtual error_code getSymbolNMTypeChar(DataRefImpl Symb, char &Res) const = 0;
+  virtual error_code getSymbolFlags(DataRefImpl Symb,
+                                    uint32_t &Res) const = 0;
+  virtual error_code getSymbolSection(DataRefImpl Symb,
+                                      section_iterator &Res) const = 0;
+  virtual error_code getSymbolValue(DataRefImpl Symb, uint64_t &Val) const = 0;
+
+  // Same as above for SectionRef.
+  friend class SectionRef;
+  virtual error_code getSectionNext(DataRefImpl Sec, SectionRef &Res) const = 0;
+  virtual error_code getSectionName(DataRefImpl Sec, StringRef &Res) const = 0;
+  virtual error_code getSectionAddress(DataRefImpl Sec, uint64_t &Res) const =0;
+  virtual error_code getSectionSize(DataRefImpl Sec, uint64_t &Res) const = 0;
+  virtual error_code getSectionContents(DataRefImpl Sec, StringRef &Res)const=0;
+  virtual error_code getSectionAlignment(DataRefImpl Sec, uint64_t &Res)const=0;
+  virtual error_code isSectionText(DataRefImpl Sec, bool &Res) const = 0;
+  virtual error_code isSectionData(DataRefImpl Sec, bool &Res) const = 0;
+  virtual error_code isSectionBSS(DataRefImpl Sec, bool &Res) const = 0;
+  virtual error_code isSectionRequiredForExecution(DataRefImpl Sec,
+                                                   bool &Res) const = 0;
+  // A section is 'virtual' if its contents aren't present in the object image.
+  virtual error_code isSectionVirtual(DataRefImpl Sec, bool &Res) const = 0;
+  virtual error_code isSectionZeroInit(DataRefImpl Sec, bool &Res) const = 0;
+  virtual error_code isSectionReadOnlyData(DataRefImpl Sec, bool &Res) const =0;
+  virtual error_code sectionContainsSymbol(DataRefImpl Sec, DataRefImpl Symb,
+                                           bool &Result) const = 0;
+  virtual relocation_iterator getSectionRelBegin(DataRefImpl Sec) const = 0;
+  virtual relocation_iterator getSectionRelEnd(DataRefImpl Sec) const = 0;
+
+
+  // Same as above for RelocationRef.
+  friend class RelocationRef;
+  virtual error_code getRelocationNext(DataRefImpl Rel,
+                                       RelocationRef &Res) const = 0;
+  virtual error_code getRelocationAddress(DataRefImpl Rel,
+                                          uint64_t &Res) const =0;
+  virtual error_code getRelocationOffset(DataRefImpl Rel,
+                                         uint64_t &Res) const =0;
+  virtual error_code getRelocationSymbol(DataRefImpl Rel,
+                                         SymbolRef &Res) const = 0;
+  virtual error_code getRelocationType(DataRefImpl Rel,
+                                       uint64_t &Res) const = 0;
+  virtual error_code getRelocationTypeName(DataRefImpl Rel,
+                                       SmallVectorImpl<char> &Result) const = 0;
+  virtual error_code getRelocationAdditionalInfo(DataRefImpl Rel,
+                                                 int64_t &Res) const = 0;
+  virtual error_code getRelocationValueString(DataRefImpl Rel,
+                                       SmallVectorImpl<char> &Result) const = 0;
+  virtual error_code getRelocationHidden(DataRefImpl Rel, bool &Result) const {
+    Result = false;
+    return object_error::success;
+  }
+
+  // Same for LibraryRef
+  friend class LibraryRef;
+  virtual error_code getLibraryNext(DataRefImpl Lib, LibraryRef &Res) const = 0;
+  virtual error_code getLibraryPath(DataRefImpl Lib, StringRef &Res) const = 0;
+
+public:
+
+  virtual symbol_iterator begin_symbols() const = 0;
+  virtual symbol_iterator end_symbols() const = 0;
+
+  virtual symbol_iterator begin_dynamic_symbols() const = 0;
+  virtual symbol_iterator end_dynamic_symbols() const = 0;
+
+  virtual section_iterator begin_sections() const = 0;
+  virtual section_iterator end_sections() const = 0;
+
+  virtual library_iterator begin_libraries_needed() const = 0;
+  virtual library_iterator end_libraries_needed() const = 0;
+
+  /// @brief The number of bytes used to represent an address in this object
+  ///        file format.
+  virtual uint8_t getBytesInAddress() const = 0;
+
+  virtual StringRef getFileFormatName() const = 0;
+  virtual /* Triple::ArchType */ unsigned getArch() const = 0;
+
+  /// For shared objects, returns the name which this object should be
+  /// loaded from at runtime. This corresponds to DT_SONAME on ELF and
+  /// LC_ID_DYLIB (install name) on MachO.
+  virtual StringRef getLoadName() const = 0;
+
+  /// @returns Pointer to ObjectFile subclass to handle this type of object.
+  /// @param ObjectPath The path to the object file. ObjectPath.isObject must
+  ///        return true.
+  /// @brief Create ObjectFile from path.
+  static ObjectFile *createObjectFile(StringRef ObjectPath);
+  static ObjectFile *createObjectFile(MemoryBuffer *Object);
+
+  static inline bool classof(const Binary *v) {
+    return v->isObject();
+  }
+
+public:
+  static ObjectFile *createCOFFObjectFile(MemoryBuffer *Object);
+  static ObjectFile *createELFObjectFile(MemoryBuffer *Object);
+  static ObjectFile *createMachOObjectFile(MemoryBuffer *Object);
+};
+
+// Inline function definitions.
+inline SymbolRef::SymbolRef(DataRefImpl SymbolP, const ObjectFile *Owner)
+  : SymbolPimpl(SymbolP)
+  , OwningObject(Owner) {}
+
+inline bool SymbolRef::operator==(const SymbolRef &Other) const {
+  return SymbolPimpl == Other.SymbolPimpl;
+}
+
+inline bool SymbolRef::operator<(const SymbolRef &Other) const {
+  return SymbolPimpl < Other.SymbolPimpl;
+}
+
+inline error_code SymbolRef::getNext(SymbolRef &Result) const {
+  return OwningObject->getSymbolNext(SymbolPimpl, Result);
+}
+
+inline error_code SymbolRef::getName(StringRef &Result) const {
+  return OwningObject->getSymbolName(SymbolPimpl, Result);
+}
+
+inline error_code SymbolRef::getAddress(uint64_t &Result) const {
+  return OwningObject->getSymbolAddress(SymbolPimpl, Result);
+}
+
+inline error_code SymbolRef::getFileOffset(uint64_t &Result) const {
+  return OwningObject->getSymbolFileOffset(SymbolPimpl, Result);
+}
+
+inline error_code SymbolRef::getSize(uint64_t &Result) const {
+  return OwningObject->getSymbolSize(SymbolPimpl, Result);
+}
+
+inline error_code SymbolRef::getNMTypeChar(char &Result) const {
+  return OwningObject->getSymbolNMTypeChar(SymbolPimpl, Result);
+}
+
+inline error_code SymbolRef::getFlags(uint32_t &Result) const {
+  return OwningObject->getSymbolFlags(SymbolPimpl, Result);
+}
+
+inline error_code SymbolRef::getSection(section_iterator &Result) const {
+  return OwningObject->getSymbolSection(SymbolPimpl, Result);
+}
+
+inline error_code SymbolRef::getType(SymbolRef::Type &Result) const {
+  return OwningObject->getSymbolType(SymbolPimpl, Result);
+}
+
+inline error_code SymbolRef::getValue(uint64_t &Val) const {
+  return OwningObject->getSymbolValue(SymbolPimpl, Val);
+}
+
+inline DataRefImpl SymbolRef::getRawDataRefImpl() const {
+  return SymbolPimpl;
+}
+
+
+/// SectionRef
+inline SectionRef::SectionRef(DataRefImpl SectionP,
+                              const ObjectFile *Owner)
+  : SectionPimpl(SectionP)
+  , OwningObject(Owner) {}
+
+inline bool SectionRef::operator==(const SectionRef &Other) const {
+  return SectionPimpl == Other.SectionPimpl;
+}
+
+inline bool SectionRef::operator<(const SectionRef &Other) const {
+  return SectionPimpl < Other.SectionPimpl;
+}
+
+inline error_code SectionRef::getNext(SectionRef &Result) const {
+  return OwningObject->getSectionNext(SectionPimpl, Result);
+}
+
+inline error_code SectionRef::getName(StringRef &Result) const {
+  return OwningObject->getSectionName(SectionPimpl, Result);
+}
+
+inline error_code SectionRef::getAddress(uint64_t &Result) const {
+  return OwningObject->getSectionAddress(SectionPimpl, Result);
+}
+
+inline error_code SectionRef::getSize(uint64_t &Result) const {
+  return OwningObject->getSectionSize(SectionPimpl, Result);
+}
+
+inline error_code SectionRef::getContents(StringRef &Result) const {
+  return OwningObject->getSectionContents(SectionPimpl, Result);
+}
+
+inline error_code SectionRef::getAlignment(uint64_t &Result) const {
+  return OwningObject->getSectionAlignment(SectionPimpl, Result);
+}
+
+inline error_code SectionRef::isText(bool &Result) const {
+  return OwningObject->isSectionText(SectionPimpl, Result);
+}
+
+inline error_code SectionRef::isData(bool &Result) const {
+  return OwningObject->isSectionData(SectionPimpl, Result);
+}
+
+inline error_code SectionRef::isBSS(bool &Result) const {
+  return OwningObject->isSectionBSS(SectionPimpl, Result);
+}
+
+inline error_code SectionRef::isRequiredForExecution(bool &Result) const {
+  return OwningObject->isSectionRequiredForExecution(SectionPimpl, Result);
+}
+
+inline error_code SectionRef::isVirtual(bool &Result) const {
+  return OwningObject->isSectionVirtual(SectionPimpl, Result);
+}
+
+inline error_code SectionRef::isZeroInit(bool &Result) const {
+  return OwningObject->isSectionZeroInit(SectionPimpl, Result);
+}
+
+inline error_code SectionRef::isReadOnlyData(bool &Result) const {
+  return OwningObject->isSectionReadOnlyData(SectionPimpl, Result);
+}
+
+inline error_code SectionRef::containsSymbol(SymbolRef S, bool &Result) const {
+  return OwningObject->sectionContainsSymbol(SectionPimpl, S.SymbolPimpl,
+                                             Result);
+}
+
+inline relocation_iterator SectionRef::begin_relocations() const {
+  return OwningObject->getSectionRelBegin(SectionPimpl);
+}
+
+inline relocation_iterator SectionRef::end_relocations() const {
+  return OwningObject->getSectionRelEnd(SectionPimpl);
+}
+
+inline DataRefImpl SectionRef::getRawDataRefImpl() const {
+  return SectionPimpl;
+}
+
+/// RelocationRef
+inline RelocationRef::RelocationRef(DataRefImpl RelocationP,
+                              const ObjectFile *Owner)
+  : RelocationPimpl(RelocationP)
+  , OwningObject(Owner) {}
+
+inline bool RelocationRef::operator==(const RelocationRef &Other) const {
+  return RelocationPimpl == Other.RelocationPimpl;
+}
+
+inline error_code RelocationRef::getNext(RelocationRef &Result) const {
+  return OwningObject->getRelocationNext(RelocationPimpl, Result);
+}
+
+inline error_code RelocationRef::getAddress(uint64_t &Result) const {
+  return OwningObject->getRelocationAddress(RelocationPimpl, Result);
+}
+
+inline error_code RelocationRef::getOffset(uint64_t &Result) const {
+  return OwningObject->getRelocationOffset(RelocationPimpl, Result);
+}
+
+inline error_code RelocationRef::getSymbol(SymbolRef &Result) const {
+  return OwningObject->getRelocationSymbol(RelocationPimpl, Result);
+}
+
+inline error_code RelocationRef::getType(uint64_t &Result) const {
+  return OwningObject->getRelocationType(RelocationPimpl, Result);
+}
+
+inline error_code RelocationRef::getTypeName(SmallVectorImpl<char> &Result)
+  const {
+  return OwningObject->getRelocationTypeName(RelocationPimpl, Result);
+}
+
+inline error_code RelocationRef::getAdditionalInfo(int64_t &Result) const {
+  return OwningObject->getRelocationAdditionalInfo(RelocationPimpl, Result);
+}
+
+inline error_code RelocationRef::getValueString(SmallVectorImpl<char> &Result)
+  const {
+  return OwningObject->getRelocationValueString(RelocationPimpl, Result);
+}
+
+inline error_code RelocationRef::getHidden(bool &Result) const {
+  return OwningObject->getRelocationHidden(RelocationPimpl, Result);
+}
+
+inline DataRefImpl RelocationRef::getRawDataRefImpl() const {
+  return RelocationPimpl;
+}
+
+// Inline function definitions.
+inline LibraryRef::LibraryRef(DataRefImpl LibraryP, const ObjectFile *Owner)
+  : LibraryPimpl(LibraryP)
+  , OwningObject(Owner) {}
+
+inline bool LibraryRef::operator==(const LibraryRef &Other) const {
+  return LibraryPimpl == Other.LibraryPimpl;
+}
+
+inline bool LibraryRef::operator<(const LibraryRef &Other) const {
+  return LibraryPimpl < Other.LibraryPimpl;
+}
+
+inline error_code LibraryRef::getNext(LibraryRef &Result) const {
+  return OwningObject->getLibraryNext(LibraryPimpl, Result);
+}
+
+inline error_code LibraryRef::getPath(StringRef &Result) const {
+  return OwningObject->getLibraryPath(LibraryPimpl, Result);
+}
+
+} // end namespace object
+} // end namespace llvm
+
+#endif

thirdparty/clang/include/llvm/Object/RelocVisitor.h

@@ -0,0 +1,209 @@
+//===-- RelocVisitor.h - Visitor for object file relocations -*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file provides a wrapper around all the different types of relocations
+// in different file formats, such that a client can handle them in a unified
+// manner by only implementing a minimal number of functions.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_OBJECT_RELOCVISITOR_H
+#define LLVM_OBJECT_RELOCVISITOR_H
+
+#include "llvm/ADT/StringRef.h"
+#include "llvm/Object/ObjectFile.h"
+#include "llvm/Support/Debug.h"
+#include "llvm/Support/ELF.h"
+#include "llvm/Support/raw_ostream.h"
+
+namespace llvm {
+namespace object {
+
+struct RelocToApply {
+  // The computed value after applying the relevant relocations.
+  int64_t Value;
+
+  // The width of the value; how many bytes to touch when applying the
+  // relocation.
+  char Width;
+  RelocToApply(const RelocToApply &In) : Value(In.Value), Width(In.Width) {}
+  RelocToApply(int64_t Value, char Width) : Value(Value), Width(Width) {}
+  RelocToApply() : Value(0), Width(0) {}
+};
+
+/// @brief Base class for object file relocation visitors.
+class RelocVisitor {
+public:
+  explicit RelocVisitor(StringRef FileFormat)
+    : FileFormat(FileFormat), HasError(false) {}
+
+  // TODO: Should handle multiple applied relocations via either passing in the
+  // previously computed value or just count paired relocations as a single
+  // visit.
+  RelocToApply visit(uint32_t RelocType, RelocationRef R, uint64_t SecAddr = 0,
+                     uint64_t Value = 0) {
+    if (FileFormat == "ELF64-x86-64") {
+      switch (RelocType) {
+        case llvm::ELF::R_X86_64_NONE:
+          return visitELF_X86_64_NONE(R);
+        case llvm::ELF::R_X86_64_64:
+          return visitELF_X86_64_64(R, Value);
+        case llvm::ELF::R_X86_64_PC32:
+          return visitELF_X86_64_PC32(R, Value, SecAddr);
+        case llvm::ELF::R_X86_64_32:
+          return visitELF_X86_64_32(R, Value);
+        case llvm::ELF::R_X86_64_32S:
+          return visitELF_X86_64_32S(R, Value);
+        default:
+          HasError = true;
+          return RelocToApply();
+      }
+    } else if (FileFormat == "ELF32-i386") {
+      switch (RelocType) {
+      case llvm::ELF::R_386_NONE:
+        return visitELF_386_NONE(R);
+      case llvm::ELF::R_386_32:
+        return visitELF_386_32(R, Value);
+      case llvm::ELF::R_386_PC32:
+        return visitELF_386_PC32(R, Value, SecAddr);
+      default:
+        HasError = true;
+        return RelocToApply();
+      }
+    } else if (FileFormat == "ELF64-ppc64") {
+      switch (RelocType) {
+      case llvm::ELF::R_PPC64_ADDR32:
+        return visitELF_PPC64_ADDR32(R, Value);
+      default:
+        HasError = true;
+        return RelocToApply();
+      }
+    } else if (FileFormat == "ELF32-mips") {
+      switch (RelocType) {
+      case llvm::ELF::R_MIPS_32:
+        return visitELF_MIPS_32(R, Value);
+      default:
+        HasError = true;
+        return RelocToApply();
+      }
+    } else if (FileFormat == "ELF64-aarch64") {
+      switch (RelocType) {
+      case llvm::ELF::R_AARCH64_ABS32:
+        return visitELF_AARCH64_ABS32(R, Value);
+      case llvm::ELF::R_AARCH64_ABS64:
+        return visitELF_AARCH64_ABS64(R, Value);
+      default:
+        HasError = true;
+        return RelocToApply();
+      }
+    }
+    HasError = true;
+    return RelocToApply();
+  }
+
+  bool error() { return HasError; }
+
+private:
+  StringRef FileFormat;
+  bool HasError;
+
+  /// Operations
+
+  /// 386-ELF
+  RelocToApply visitELF_386_NONE(RelocationRef R) {
+    return RelocToApply(0, 0);
+  }
+
+  // Ideally the Addend here will be the addend in the data for
+  // the relocation. It's not actually the case for Rel relocations.
+  RelocToApply visitELF_386_32(RelocationRef R, uint64_t Value) {
+    int64_t Addend;
+    R.getAdditionalInfo(Addend);
+    return RelocToApply(Value + Addend, 4);
+  }
+
+  RelocToApply visitELF_386_PC32(RelocationRef R, uint64_t Value,
+                                 uint64_t SecAddr) {
+    int64_t Addend;
+    R.getAdditionalInfo(Addend);
+    uint64_t Address;
+    R.getAddress(Address);
+    return RelocToApply(Value + Addend - Address, 4);
+  }
+
+  /// X86-64 ELF
+  RelocToApply visitELF_X86_64_NONE(RelocationRef R) {
+    return RelocToApply(0, 0);
+  }
+  RelocToApply visitELF_X86_64_64(RelocationRef R, uint64_t Value) {
+    int64_t Addend;
+    R.getAdditionalInfo(Addend);
+    return RelocToApply(Value + Addend, 8);
+  }
+  RelocToApply visitELF_X86_64_PC32(RelocationRef R, uint64_t Value,
+                                    uint64_t SecAddr) {
+    int64_t Addend;
+    R.getAdditionalInfo(Addend);
+    uint64_t Address;
+    R.getAddress(Address);
+    return RelocToApply(Value + Addend - Address, 4);
+  }
+  RelocToApply visitELF_X86_64_32(RelocationRef R, uint64_t Value) {
+    int64_t Addend;
+    R.getAdditionalInfo(Addend);
+    uint32_t Res = (Value + Addend) & 0xFFFFFFFF;
+    return RelocToApply(Res, 4);
+  }
+  RelocToApply visitELF_X86_64_32S(RelocationRef R, uint64_t Value) {
+    int64_t Addend;
+    R.getAdditionalInfo(Addend);
+    int32_t Res = (Value + Addend) & 0xFFFFFFFF;
+    return RelocToApply(Res, 4);
+  }
+
+  /// PPC64 ELF
+  RelocToApply visitELF_PPC64_ADDR32(RelocationRef R, uint64_t Value) {
+    int64_t Addend;
+    R.getAdditionalInfo(Addend);
+    uint32_t Res = (Value + Addend) & 0xFFFFFFFF;
+    return RelocToApply(Res, 4);
+  }
+
+  /// MIPS ELF
+  RelocToApply visitELF_MIPS_32(RelocationRef R, uint64_t Value) {
+    int64_t Addend;
+    R.getAdditionalInfo(Addend);
+    uint32_t Res = (Value + Addend) & 0xFFFFFFFF;
+    return RelocToApply(Res, 4);
+  }
+
+  // AArch64 ELF
+  RelocToApply visitELF_AARCH64_ABS32(RelocationRef R, uint64_t Value) {
+    int64_t Addend;
+    R.getAdditionalInfo(Addend);
+    int64_t Res =  Value + Addend;
+
+    // Overflow check allows for both signed and unsigned interpretation.
+    if (Res < INT32_MIN || Res > UINT32_MAX)
+      HasError = true;
+
+    return RelocToApply(static_cast<uint32_t>(Res), 4);
+  }
+
+  RelocToApply visitELF_AARCH64_ABS64(RelocationRef R, uint64_t Value) {
+    int64_t Addend;
+    R.getAdditionalInfo(Addend);
+    return RelocToApply(Value + Addend, 8);
+  }
+
+};
+
+}
+}
+#endif