1 files changed, 54 insertions, 0 deletions
diff --git a/llvm/lib/DebugInfo/PDB/PDB.cpp b/llvm/lib/DebugInfo/PDB/PDB.cpp
new file mode 100644
index 0000000000000..e7b968cb7beac
--- /dev/null
+++ b/llvm/lib/DebugInfo/PDB/PDB.cpp
@@ -0,0 +1,54 @@
+//===- PDB.cpp - base header file for creating a PDB reader ---------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/DebugInfo/PDB/PDB.h"
+#include "llvm/ADT/StringRef.h"
+#include "llvm/Config/config.h"
+#include "llvm/DebugInfo/PDB/GenericError.h"
+#if LLVM_ENABLE_DIA_SDK
+#include "llvm/DebugInfo/PDB/DIA/DIASession.h"
+#endif
+#include "llvm/DebugInfo/PDB/Native/NativeSession.h"
+#include "llvm/Support/Error.h"
+#include "llvm/Support/MemoryBuffer.h"
+
+using namespace llvm;
+using namespace llvm::pdb;
+
+Error llvm::pdb::loadDataForPDB(PDB_ReaderType Type, StringRef Path,
+                                std::unique_ptr<IPDBSession> &Session) {
+  // Create the correct concrete instance type based on the value of Type.
+  if (Type == PDB_ReaderType::Native) {
+    ErrorOr<std::unique_ptr<MemoryBuffer>> ErrorOrBuffer =
+        MemoryBuffer::getFileOrSTDIN(Path, /*FileSize=*/-1,
+                                     /*RequiresNullTerminator=*/false);
+    if (!ErrorOrBuffer)
+      return errorCodeToError(ErrorOrBuffer.getError());
+
+    return NativeSession::createFromPdb(std::move(*ErrorOrBuffer), Session);
+  }
+
+#if LLVM_ENABLE_DIA_SDK
+  return DIASession::createFromPdb(Path, Session);
+#else
+  return make_error<PDBError>(pdb_error_code::dia_sdk_not_present);
+#endif
+}
+
+Error llvm::pdb::loadDataForEXE(PDB_ReaderType Type, StringRef Path,
+                                std::unique_ptr<IPDBSession> &Session) {
+  // Create the correct concrete instance type based on the value of Type.
+  if (Type == PDB_ReaderType::Native)
+    return NativeSession::createFromExe(Path, Session);
+
+#if LLVM_ENABLE_DIA_SDK
+  return DIASession::createFromExe(Path, Session);
+#else
+  return make_error<PDBError>(pdb_error_code::dia_sdk_not_present);
+#endif
+}