[llvm-pdbdump] Dump CodeView line information.

This first pass only splits apart the records and dumps the line
info kinds and binary data.  Subsequent patches will parse out
the binary data into more useful information and dump it in
detail.

llvm-svn: 271576

1 files changed, 9 insertions, 3 deletions

diff --git a/llvm/lib/DebugInfo/PDB/Raw/ModStream.cpp b/llvm/lib/DebugInfo/PDB/Raw/ModStream.cpp
index b7204cb..a6d1977 100644
--- a/llvm/lib/DebugInfo/PDB/Raw/ModStream.cpp
+++ b/llvm/lib/DebugInfo/PDB/Raw/ModStream.cpp
@@ -13,6 +13,7 @@
 #include "llvm/DebugInfo/PDB/Raw/ModInfo.h"
 #include "llvm/DebugInfo/PDB/Raw/PDBFile.h"
 #include "llvm/DebugInfo/PDB/Raw/RawError.h"
+#include "llvm/DebugInfo/PDB/Raw/RawTypes.h"
 
 using namespace llvm;
 using namespace llvm::pdb;
@@ -45,9 +46,9 @@ Error ModStream::reload() {
     return EC;
   if (auto EC = Reader.readStreamRef(C13LinesSubstream, C13Size))
     return EC;
-  ArrayRef<uint8_t> LineBytes;
-  codeview::StreamReader LinesReader(C13LinesSubstream);
-  if (auto EC = LinesReader.readBytes(LineBytes, C13LinesSubstream.getLength()))
+
+  codeview::StreamReader LineReader(C13LinesSubstream);
+  if (auto EC = LineReader.readArray(LineInfo, LineReader.bytesRemaining()))
     return EC;
 
   uint32_t GlobalRefsSize;
@@ -67,3 +68,8 @@ ModStream::symbols(bool *HadError) const {
   return llvm::make_range(SymbolsSubstream.begin(HadError),
                           SymbolsSubstream.end());
 }
+
+iterator_range<ModStream::LineInfoArray::Iterator>
+ModStream::lines(bool *HadError) const {
+  return llvm::make_range(LineInfo.begin(HadError), LineInfo.end());
+}