1 files changed, 43 insertions, 0 deletions
diff --git a/thirdparty/raw_pdb/src/PDB_GlobalSymbolStream.cpp b/thirdparty/raw_pdb/src/PDB_GlobalSymbolStream.cpp
new file mode 100644
index 000000000..461b86902
--- /dev/null
+++ b/thirdparty/raw_pdb/src/PDB_GlobalSymbolStream.cpp
@@ -0,0 +1,43 @@
+// Copyright 2011-2022, Molecular Matters GmbH <[email protected]>
+// See LICENSE.txt for licensing details (2-clause BSD License: https://opensource.org/licenses/BSD-2-Clause)
+
+#include "PDB_PCH.h"
+#include "PDB_GlobalSymbolStream.h"
+#include "PDB_RawFile.h"
+#include "PDB_Types.h"
+#include "PDB_DBITypes.h"
+
+
+// ------------------------------------------------------------------------------------------------
+// ------------------------------------------------------------------------------------------------
+PDB::GlobalSymbolStream::GlobalSymbolStream(void) PDB_NO_EXCEPT
+	: m_stream()
+	, m_hashRecords(nullptr)
+	, m_count(0u)
+{
+}
+
+
+// ------------------------------------------------------------------------------------------------
+// ------------------------------------------------------------------------------------------------
+PDB::GlobalSymbolStream::GlobalSymbolStream(const RawFile& file, uint16_t streamIndex, uint32_t count) PDB_NO_EXCEPT
+	: m_stream(file.CreateMSFStream<CoalescedMSFStream>(streamIndex))
+	, m_hashRecords(m_stream.GetDataAtOffset<HashRecord>(sizeof(HashTableHeader)))
+	, m_count(count)
+{
+}
+
+
+// ------------------------------------------------------------------------------------------------
+// ------------------------------------------------------------------------------------------------
+PDB_NO_DISCARD const PDB::CodeView::DBI::Record* PDB::GlobalSymbolStream::GetRecord(const CoalescedMSFStream& symbolRecordStream, const HashRecord& hashRecord) const PDB_NO_EXCEPT
+{
+	// hash record offsets start at 1, not at 0
+	const uint32_t headerOffset = hashRecord.offset - 1u;
+
+	// the offset doesn't point to the global symbol directly, but to the CodeView record:
+	// https://llvm.org/docs/PDB/CodeViewSymbols.html
+	const CodeView::DBI::Record* record = symbolRecordStream.GetDataAtOffset<const CodeView::DBI::Record>(headerOffset);
+
+	return record;
+}