CodeView: extract the OMF Directory Header

The DebugDirectory contains a pointer to the CodeView info structure which is a
derivative of the OMF debug directory.  The structure has evolved a bit over
time, and PDB 2.0 used a slightly different definition from PDB 7.0.  Both of
these are specific to CodeView and not COFF.  Reflect this by moving the
structure definitions into the DebugInfo/CodeView headers.  Define a generic
DebugInfo union type that can be used to pass around a reference to the
DebugInfo irrespective of the versioning.  NFC.

llvm-svn: 278075

1 files changed, 3 insertions, 3 deletions

diff --git a/llvm/lib/DebugInfo/Symbolize/Symbolize.cpp b/llvm/lib/DebugInfo/Symbolize/Symbolize.cpp
index adbe0cb69ed..31a0086f6fc 100644
--- a/llvm/lib/DebugInfo/Symbolize/Symbolize.cpp
+++ b/llvm/lib/DebugInfo/Symbolize/Symbolize.cpp
@@ -391,10 +391,10 @@ LLVMSymbolizer::getOrCreateModuleInfo(const std::string &ModuleName) {
   // If this is a COFF object containing PDB info, use a PDBContext to
   // symbolize. Otherwise, use DWARF.
   if (auto CoffObject = dyn_cast<COFFObjectFile>(Objects.first)) {
-    const debug_pdb_info *PDBInfo;
+    const codeview::DebugInfo *DebugInfo;
     StringRef PDBFileName;
-    auto EC = CoffObject->getDebugPDBInfo(PDBInfo, PDBFileName);
-    if (!EC && PDBInfo != nullptr) {
+    auto EC = CoffObject->getDebugPDBInfo(DebugInfo, PDBFileName);
+    if (!EC && DebugInfo != nullptr) {
       using namespace pdb;
       std::unique_ptr<IPDBSession> Session;
       if (auto Err = loadDataForEXE(PDB_ReaderType::DIA,