Index: include/llvm/DebugInfo/PDB/Raw/DbiStream.h
===================================================================
--- include/llvm/DebugInfo/PDB/Raw/DbiStream.h
+++ include/llvm/DebugInfo/PDB/Raw/DbiStream.h
@@ -14,6 +14,7 @@
 #include "llvm/DebugInfo/PDB/Raw/ByteStream.h"
 #include "llvm/DebugInfo/PDB/Raw/MappedBlockStream.h"
 #include "llvm/DebugInfo/PDB/Raw/ModInfo.h"
+#include "llvm/DebugInfo/PDB/Raw/NameHashTable.h"
 #include "llvm/DebugInfo/PDB/Raw/RawConstants.h"
 #include "llvm/Support/Endian.h"
 
@@ -54,6 +55,7 @@
   MappedBlockStream Stream;
 
   std::vector<ModuleInfoEx> ModuleInfos;
+  NameHashTable ECNames;
 
   ByteStream ModInfoSubstream;
   ByteStream SecContrSubstream;
Index: include/llvm/DebugInfo/PDB/Raw/NameHashTable.h
===================================================================
--- /dev/null
+++ include/llvm/DebugInfo/PDB/Raw/NameHashTable.h
@@ -0,0 +1,45 @@
+//===- NameHashTable.h - PDB Name Hash Table --------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_DEBUGINFO_PDB_RAW_NAMEHASHTABLE_H
+#define LLVM_DEBUGINFO_PDB_RAW_NAMEHASHTABLE_H
+
+#include "llvm/ADT/StringMap.h"
+#include "llvm/ADT/StringRef.h"
+#include "llvm/DebugInfo/PDB/Raw/ByteStream.h"
+
+#include <stdint.h>
+#include <utility>
+
+namespace llvm {
+namespace pdb {
+class StreamReader;
+class NameHashTable {
+public:
+  NameHashTable();
+
+  std::error_code load(StreamReader &Stream);
+
+  bool tryGetValue(StringRef Name, uint32_t &Value) const;
+  uint32_t getNameCount() const { return NameCount; }
+  uint32_t getHashVersion() const { return HashVersion; }
+  uint32_t getSignature() const { return Signature; }
+
+private:
+  ByteStream NamesBuffer;
+  std::vector<uint32_t> Buckets;
+  uint32_t Signature;
+  uint32_t HashVersion;
+  uint32_t NameCount;
+  uint32_t HashCount;
+};
+}
+}
+
+#endif
\ No newline at end of file
Index: include/llvm/DebugInfo/PDB/Raw/StreamReader.h
===================================================================
--- include/llvm/DebugInfo/PDB/Raw/StreamReader.h
+++ include/llvm/DebugInfo/PDB/Raw/StreamReader.h
@@ -34,6 +34,11 @@
     return readBytes(Buffer);
   }
 
+  template <typename T> std::error_code readArray(MutableArrayRef<T> Array) {
+    MutableArrayRef<uint8_t> Casted(reinterpret_cast<uint8_t*>(Array.data()), Array.size() * sizeof(T));
+    return readBytes(Casted);
+  }
+
   void setOffset(uint32_t Off) { Offset = Off; }
   uint32_t getOffset() const { return Offset; }
   uint32_t getLength() const { return Stream.getLength(); }
Index: lib/DebugInfo/PDB/CMakeLists.txt
===================================================================
--- lib/DebugInfo/PDB/CMakeLists.txt
+++ lib/DebugInfo/PDB/CMakeLists.txt
@@ -33,6 +33,7 @@
   Raw/PDBFile.cpp
   Raw/DbiStream.cpp
   Raw/InfoStream.cpp
+  Raw/NameHashTable.cpp
   Raw/NameMap.cpp
   Raw/RawSession.cpp
   Raw/StreamReader.cpp)
Index: lib/DebugInfo/PDB/Raw/DbiStream.cpp
===================================================================
--- lib/DebugInfo/PDB/Raw/DbiStream.cpp
+++ lib/DebugInfo/PDB/Raw/DbiStream.cpp
@@ -10,6 +10,7 @@
 #include "llvm/DebugInfo/PDB/Raw/DbiStream.h"
 #include "llvm/DebugInfo/PDB/Raw/InfoStream.h"
 #include "llvm/DebugInfo/PDB/Raw/ModInfo.h"
+#include "llvm/DebugInfo/PDB/Raw/NameHashTable.h"
 #include "llvm/DebugInfo/PDB/Raw/PDBFile.h"
 #include "llvm/DebugInfo/PDB/Raw/RawConstants.h"
 #include "llvm/DebugInfo/PDB/Raw/StreamReader.h"
@@ -148,6 +149,9 @@
   if (Reader.bytesRemaining() > 0)
     return std::make_error_code(std::errc::illegal_byte_sequence);
 
+  StreamReader ECReader(ECSubstream);
+  ECNames.load(ECReader);
+
   return std::error_code();
 }
 
Index: lib/DebugInfo/PDB/Raw/NameHashTable.cpp
===================================================================
--- /dev/null
+++ lib/DebugInfo/PDB/Raw/NameHashTable.cpp
@@ -0,0 +1,55 @@
+//===- NameHashTable.cpp - PDB Name Hash Table ------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/DebugInfo/PDB/Raw/NameHashTable.h"
+
+#include "llvm/ADT/ArrayRef.h"
+#include "llvm/DebugInfo/PDB/Raw/ByteStream.h"
+#include "llvm/DebugInfo/PDB/Raw/StreamReader.h"
+#include "llvm/Support/Endian.h"
+
+using namespace llvm;
+using namespace llvm::pdb;
+
+NameHashTable::NameHashTable()
+    : Signature(0), HashVersion(0), NameCount(0), HashCount(0) {}
+
+std::error_code NameHashTable::load(StreamReader &Stream) {
+  struct Header {
+    support::ulittle32_t Signature;
+    support::ulittle32_t HashVersion;
+    support::ulittle32_t ByteSize;
+  };
+
+  Header H;
+  Stream.readObject(&H);
+  if (H.Signature != 0xEFFEEFFE)
+    return std::make_error_code(std::errc::illegal_byte_sequence);
+  if (H.HashVersion != 1)
+    return std::make_error_code(std::errc::not_supported);
+
+  Signature = H.Signature;
+  HashVersion = H.HashVersion;
+  NamesBuffer.initialize(Stream, H.ByteSize);
+
+  Stream.readInteger(HashCount);
+  std::vector<support::ulittle32_t> BucketArray(HashCount);
+  Stream.readArray<support::ulittle32_t>(BucketArray);
+  Buckets.assign(BucketArray.begin(), BucketArray.end());
+
+  if (Stream.bytesRemaining() < sizeof(support::ulittle32_t))
+    return std::make_error_code(std::errc::illegal_byte_sequence);
+
+  Stream.readInteger(NameCount);
+  return std::error_code();
+}
+
+bool NameHashTable::tryGetValue(StringRef Name, uint32_t &Value) const {
+  return false;
+}
Index: tools/llvm-pdbdump/llvm-pdbdump.cpp
===================================================================
--- tools/llvm-pdbdump/llvm-pdbdump.cpp
+++ tools/llvm-pdbdump/llvm-pdbdump.cpp
@@ -39,6 +39,7 @@
 #include "llvm/DebugInfo/PDB/Raw/InfoStream.h"
 #include "llvm/DebugInfo/PDB/Raw/MappedBlockStream.h"
 #include "llvm/DebugInfo/PDB/Raw/ModInfo.h"
+#include "llvm/DebugInfo/PDB/Raw/NameHashTable.h"
 #include "llvm/DebugInfo/PDB/Raw/PDBFile.h"
 #include "llvm/DebugInfo/PDB/Raw/RawSession.h"
 #include "llvm/DebugInfo/PDB/Raw/StreamReader.h"
@@ -147,19 +148,6 @@
                          cl::cat(FilterCategory));
 }
 
-
-static void reportError(StringRef Input, StringRef Message) {
-  if (Input == "-")
-    Input = "<stdin>";
-  errs() << Input << ": " << Message << "\n";
-  errs().flush();
-  exit(1);
-}
-
-static void reportError(StringRef Input, std::error_code EC) {
-  reportError(Input, EC.message());
-}
-
 static void dumpStructure(RawSession &RS) {
   PDBFile &File = RS.getPDBFile();
 
@@ -253,19 +241,11 @@
 
     outs() << "NameStream: " << NameStreamIndex << '\n';
 
-    // The name stream appears to start with a signature and version.
-    uint32_t NameStreamSignature;
-    Reader.readInteger(NameStreamSignature);
+    NameHashTable NameTable;
+    NameTable.load(Reader);
     outs() << "NameStreamSignature: ";
-    outs().write_hex(NameStreamSignature) << '\n';
-
-    uint32_t NameStreamVersion;
-    Reader.readInteger(NameStreamVersion);
-    outs() << "NameStreamVersion: " << NameStreamVersion << '\n';
-
-    // We only support this particular version of the name stream.
-    if (NameStreamSignature != 0xeffeeffe || NameStreamVersion != 1)
-      reportError("", std::make_error_code(std::errc::not_supported));
+    outs().write_hex(NameTable.getSignature()) << '\n';
+    outs() << "NameStreamVersion: " << NameTable.getHashVersion() << '\n';
   }
 
   DbiStream &DS = File.getPDBDbiStream();