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// 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;
}
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