--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lib/DebugInfo/Symbolize/SymbolizableObjectFile.h	Tue Jan 26 22:53:40 2016 +0900
@@ -0,0 +1,82 @@
+//===-- SymbolizableObjectFile.h -------------------------------- 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 SymbolizableObjectFile class.
+//
+//===----------------------------------------------------------------------===//
+#ifndef LLVM_LIB_DEBUGINFO_SYMBOLIZE_SYMBOLIZABLEOBJECTFILE_H
+#define LLVM_LIB_DEBUGINFO_SYMBOLIZE_SYMBOLIZABLEOBJECTFILE_H
+
+#include "llvm/DebugInfo/Symbolize/SymbolizableModule.h"
+#include <map>
+
+namespace llvm {
+class DataExtractor;
+}
+
+namespace llvm {
+namespace symbolize {
+
+class SymbolizableObjectFile : public SymbolizableModule {
+public:
+  static ErrorOr<std::unique_ptr<SymbolizableObjectFile>>
+  create(object::ObjectFile *Obj, std::unique_ptr<DIContext> DICtx);
+
+  DILineInfo symbolizeCode(uint64_t ModuleOffset, FunctionNameKind FNKind,
+                           bool UseSymbolTable) const override;
+  DIInliningInfo symbolizeInlinedCode(uint64_t ModuleOffset,
+                                      FunctionNameKind FNKind,
+                                      bool UseSymbolTable) const override;
+  DIGlobal symbolizeData(uint64_t ModuleOffset) const override;
+
+  // Return true if this is a 32-bit x86 PE COFF module.
+  bool isWin32Module() const override;
+
+  // Returns the preferred base of the module, i.e. where the loader would place
+  // it in memory assuming there were no conflicts.
+  uint64_t getModulePreferredBase() const override;
+
+private:
+  bool shouldOverrideWithSymbolTable(FunctionNameKind FNKind,
+                                     bool UseSymbolTable) const;
+
+  bool getNameFromSymbolTable(object::SymbolRef::Type Type, uint64_t Address,
+                              std::string &Name, uint64_t &Addr,
+                              uint64_t &Size) const;
+  // For big-endian PowerPC64 ELF, OpdAddress is the address of the .opd
+  // (function descriptor) section and OpdExtractor refers to its contents.
+  std::error_code addSymbol(const object::SymbolRef &Symbol,
+                            uint64_t SymbolSize,
+                            DataExtractor *OpdExtractor = nullptr,
+                            uint64_t OpdAddress = 0);
+  std::error_code addCoffExportSymbols(const object::COFFObjectFile *CoffObj);
+
+  object::ObjectFile *Module;
+  std::unique_ptr<DIContext> DebugInfoContext;
+
+  struct SymbolDesc {
+    uint64_t Addr;
+    // If size is 0, assume that symbol occupies the whole memory range up to
+    // the following symbol.
+    uint64_t Size;
+    friend bool operator<(const SymbolDesc &s1, const SymbolDesc &s2) {
+      return s1.Addr < s2.Addr;
+    }
+  };
+  std::map<SymbolDesc, StringRef> Functions;
+  std::map<SymbolDesc, StringRef> Objects;
+
+  SymbolizableObjectFile(object::ObjectFile *Obj,
+                         std::unique_ptr<DIContext> DICtx);
+};
+
+}  // namespace symbolize
+}  // namespace llvm
+
+#endif  // LLVM_LIB_DEBUGINFO_SYMBOLIZE_SYMBOLIZABLEOBJECTFILE_H