macho-dump: Add support for dumping string table data.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120217 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/Object/MachOObject.h

@@ -13,6 +13,7 @@
 #include <string>
 #include "llvm/ADT/InMemoryStruct.h"
 #include "llvm/ADT/OwningPtr.h"
+#include "llvm/ADT/StringRef.h"
 #include "llvm/Object/MachOFormat.h"
 
 namespace llvm {
@@ -59,6 +60,8 @@ private:
   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;
@@ -68,6 +71,9 @@ private:
   macho::Header Header;
   macho::Header64Ext Header64Ext;
 
+  /// Cache string table information.
+  StringRef StringTable;
+
 private:
   MachOObject(MemoryBuffer *Buffer, bool IsLittleEndian, bool Is64Bit);
 
@@ -96,6 +102,17 @@ public:
     return Is64Bit ? macho::Header64Size : macho::Header32Size;
   }
 
+  /// @}
+  /// @name String Table Data
+  /// @{
+
+  StringRef getStringTableData() const {
+    assert(HasStringTable && "String table has not been registered!");
+    return StringTable;
+  }
+
+  void RegisterStringTable(macho::SymtabLoadCommand &SLC);
+
   /// @}
   /// @name Object Header Access
   /// @{