1 files changed, 93 insertions, 0 deletions
diff --git a/llvm/lib/DebugInfo/PDB/Native/DbiModuleDescriptor.cpp b/llvm/lib/DebugInfo/PDB/Native/DbiModuleDescriptor.cpp
new file mode 100644
index 000000000000..5095efcdee3c
--- /dev/null
+++ b/llvm/lib/DebugInfo/PDB/Native/DbiModuleDescriptor.cpp
@@ -0,0 +1,93 @@
+//===- DbiModuleDescriptor.cpp - PDB module information -------------------===//
+//
+// 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/Native/DbiModuleDescriptor.h"
+#include "llvm/DebugInfo/PDB/Native/RawTypes.h"
+#include "llvm/Support/BinaryStreamReader.h"
+#include "llvm/Support/Endian.h"
+#include "llvm/Support/Error.h"
+#include "llvm/Support/MathExtras.h"
+#include <cstdint>
+
+using namespace llvm;
+using namespace llvm::pdb;
+using namespace llvm::support;
+
+DbiModuleDescriptor::DbiModuleDescriptor() = default;
+
+DbiModuleDescriptor::DbiModuleDescriptor(const DbiModuleDescriptor &Info) =
+    default;
+
+DbiModuleDescriptor::~DbiModuleDescriptor() = default;
+
+Error DbiModuleDescriptor::initialize(BinaryStreamRef Stream,
+                                      DbiModuleDescriptor &Info) {
+  BinaryStreamReader Reader(Stream);
+  if (auto EC = Reader.readObject(Info.Layout))
+    return EC;
+
+  if (auto EC = Reader.readCString(Info.ModuleName))
+    return EC;
+
+  if (auto EC = Reader.readCString(Info.ObjFileName))
+    return EC;
+  return Error::success();
+}
+
+bool DbiModuleDescriptor::hasECInfo() const {
+  return (Layout->Flags & ModInfoFlags::HasECFlagMask) != 0;
+}
+
+uint16_t DbiModuleDescriptor::getTypeServerIndex() const {
+  return (Layout->Flags & ModInfoFlags::TypeServerIndexMask) >>
+         ModInfoFlags::TypeServerIndexShift;
+}
+
+const SectionContrib &DbiModuleDescriptor::getSectionContrib() const {
+  return Layout->SC;
+}
+
+uint16_t DbiModuleDescriptor::getModuleStreamIndex() const {
+  return Layout->ModDiStream;
+}
+
+uint32_t DbiModuleDescriptor::getSymbolDebugInfoByteSize() const {
+  return Layout->SymBytes;
+}
+
+uint32_t DbiModuleDescriptor::getC11LineInfoByteSize() const {
+  return Layout->C11Bytes;
+}
+
+uint32_t DbiModuleDescriptor::getC13LineInfoByteSize() const {
+  return Layout->C13Bytes;
+}
+
+uint32_t DbiModuleDescriptor::getNumberOfFiles() const {
+  return Layout->NumFiles;
+}
+
+uint32_t DbiModuleDescriptor::getSourceFileNameIndex() const {
+  return Layout->SrcFileNameNI;
+}
+
+uint32_t DbiModuleDescriptor::getPdbFilePathNameIndex() const {
+  return Layout->PdbFilePathNI;
+}
+
+StringRef DbiModuleDescriptor::getModuleName() const { return ModuleName; }
+
+StringRef DbiModuleDescriptor::getObjFileName() const { return ObjFileName; }
+
+uint32_t DbiModuleDescriptor::getRecordLength() const {
+  uint32_t M = ModuleName.str().size() + 1;
+  uint32_t O = ObjFileName.str().size() + 1;
+  uint32_t Size = sizeof(ModuleInfoHeader) + M + O;
+  Size = alignTo(Size, 4);
+  return Size;
+}