--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lib/DebugInfo/DWARFAbbreviationDeclaration.cpp	Wed May 15 06:43:32 2013 +0900
@@ -0,0 +1,83 @@
+//===-- DWARFAbbreviationDeclaration.cpp ----------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "DWARFAbbreviationDeclaration.h"
+#include "llvm/Support/Dwarf.h"
+#include "llvm/Support/Format.h"
+#include "llvm/Support/raw_ostream.h"
+using namespace llvm;
+using namespace dwarf;
+
+bool
+DWARFAbbreviationDeclaration::extract(DataExtractor data, uint32_t* offset_ptr){
+  return extract(data, offset_ptr, data.getULEB128(offset_ptr));
+}
+
+bool
+DWARFAbbreviationDeclaration::extract(DataExtractor data, uint32_t* offset_ptr,
+                                      uint32_t code) {
+  Code = code;
+  Attribute.clear();
+  if (Code) {
+    Tag = data.getULEB128(offset_ptr);
+    HasChildren = data.getU8(offset_ptr);
+
+    while (data.isValidOffset(*offset_ptr)) {
+      uint16_t attr = data.getULEB128(offset_ptr);
+      uint16_t form = data.getULEB128(offset_ptr);
+
+      if (attr && form)
+        Attribute.push_back(DWARFAttribute(attr, form));
+      else
+        break;
+    }
+
+    return Tag != 0;
+  } else {
+    Tag = 0;
+    HasChildren = false;
+  }
+
+  return false;
+}
+
+void DWARFAbbreviationDeclaration::dump(raw_ostream &OS) const {
+  const char *tagString = TagString(getTag());
+  OS << '[' << getCode() << "] ";
+  if (tagString)
+    OS << tagString;
+  else
+    OS << format("DW_TAG_Unknown_%x", getTag());
+  OS << "\tDW_CHILDREN_" << (hasChildren() ? "yes" : "no") << '\n';
+  for (unsigned i = 0, e = Attribute.size(); i != e; ++i) {
+    OS << '\t';
+    const char *attrString = AttributeString(Attribute[i].getAttribute());
+    if (attrString)
+      OS << attrString;
+    else
+      OS << format("DW_AT_Unknown_%x", Attribute[i].getAttribute());
+    OS << '\t';
+    const char *formString = FormEncodingString(Attribute[i].getForm());
+    if (formString)
+      OS << formString;
+    else
+      OS << format("DW_FORM_Unknown_%x", Attribute[i].getForm());
+    OS << '\n';
+  }
+  OS << '\n';
+}
+
+uint32_t
+DWARFAbbreviationDeclaration::findAttributeIndex(uint16_t attr) const {
+  for (uint32_t i = 0, e = Attribute.size(); i != e; ++i) {
+    if (Attribute[i].getAttribute() == attr)
+      return i;
+  }
+  return -1U;
+}