[llvm-pdbutil] Dump raw bytes of pdb name map.

This patch dumps the raw bytes of the pdb name map which contains
the mapping of stream name to stream index for the string table
and other reserved streams.

llvm-svn: 306148

1 files changed, 7 insertions, 12 deletions

diff --git a/llvm/tools/llvm-pdbutil/LinePrinter.cpp b/llvm/tools/llvm-pdbutil/LinePrinter.cpp
index a5f48f05859..a9761b4337b 100644
--- a/llvm/tools/llvm-pdbutil/LinePrinter.cpp
+++ b/llvm/tools/llvm-pdbutil/LinePrinter.cpp
@@ -203,11 +203,12 @@ void LinePrinter::formatMsfStreamData(StringRef Label, PDBFile &File,
              StreamPurpose, Size, S->getLength());
   AutoIndent Indent(*this);
   BinaryStreamRef Slice(*S);
-  Slice = Slice.keep_front(Offset + Size);
-  BinaryStreamReader Reader(Slice);
-  consumeError(Reader.skip(Offset));
+  BinarySubstreamRef Substream;
+  Substream.Offset = Offset;
+  Substream.StreamData = Slice.drop_front(Offset).keep_front(Size);
+
   auto Layout = File.getStreamLayout(StreamIdx);
-  formatMsfStreamData(Label, File, Layout, Reader);
+  formatMsfStreamData(Label, File, Layout, Substream);
 }
 
 void LinePrinter::formatMsfStreamData(StringRef Label, PDBFile &File,
@@ -215,13 +216,6 @@ void LinePrinter::formatMsfStreamData(StringRef Label, PDBFile &File,
                                       BinarySubstreamRef Substream) {
   BinaryStreamReader Reader(Substream.StreamData);
 
-  consumeError(Reader.skip(Substream.Offset));
-  formatMsfStreamData(Label, File, Stream, Reader);
-}
-
-void LinePrinter::formatMsfStreamData(StringRef Label, PDBFile &File,
-                                      const msf::MSFStreamLayout &Stream,
-                                      BinaryStreamReader &Reader) {
   auto Runs = computeBlockRuns(File.getBlockSize(), Stream);
 
   NewLine();
@@ -231,7 +225,7 @@ void LinePrinter::formatMsfStreamData(StringRef Label, PDBFile &File,
 
     Run FoundRun;
     uint32_t RunOffset;
-    std::tie(FoundRun, RunOffset) = findRun(Reader.getOffset(), Runs);
+    std::tie(FoundRun, RunOffset) = findRun(Substream.Offset, Runs);
     assert(FoundRun.ByteLen >= RunOffset);
     uint32_t Len = FoundRun.ByteLen - RunOffset;
     Len = std::min(Len, Reader.bytesRemaining());
@@ -245,6 +239,7 @@ void LinePrinter::formatMsfStreamData(StringRef Label, PDBFile &File,
       OS << formatv("  {0}",
                     fmt_align("<discontinuity>", AlignStyle::Center, 114, '-'));
     }
+    Substream.Offset += Len;
   }
   NewLine();
   OS << ")";