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//===- InjectedSourceStream.cpp - PDB Headerblock Stream Access -----------===//
//
// 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/InjectedSourceStream.h"
#include "llvm/DebugInfo/MSF/MappedBlockStream.h"
#include "llvm/DebugInfo/PDB/Native/Hash.h"
#include "llvm/DebugInfo/PDB/Native/PDBStringTable.h"
#include "llvm/DebugInfo/PDB/Native/RawConstants.h"
#include "llvm/DebugInfo/PDB/Native/RawTypes.h"
#include "llvm/Support/BinaryStreamReader.h"
#include "llvm/Support/Endian.h"
using namespace llvm;
using namespace llvm::msf;
using namespace llvm::support;
using namespace llvm::pdb;
InjectedSourceStream::InjectedSourceStream(
std::unique_ptr<MappedBlockStream> Stream)
: Stream(std::move(Stream)) {}
Error InjectedSourceStream::reload(const PDBStringTable &Strings) {
BinaryStreamReader Reader(*Stream);
if (auto EC = Reader.readObject(Header))
return EC;
if (Header->Version !=
static_cast<uint32_t>(PdbRaw_SrcHeaderBlockVer::SrcVerOne))
return make_error<RawError>(raw_error_code::corrupt_file,
"Invalid headerblock header version");
if (auto EC = InjectedSourceTable.load(Reader))
return EC;
for (const auto& Entry : *this) {
if (Entry.second.Size != sizeof(SrcHeaderBlockEntry))
return make_error<RawError>(raw_error_code::corrupt_file,
"Invalid headerbock entry size");
if (Entry.second.Version !=
static_cast<uint32_t>(PdbRaw_SrcHeaderBlockVer::SrcVerOne))
return make_error<RawError>(raw_error_code::corrupt_file,
"Invalid headerbock entry version");
// Check that all name references are valid.
auto Name = Strings.getStringForID(Entry.second.FileNI);
if (!Name)
return Name.takeError();
auto ObjName = Strings.getStringForID(Entry.second.ObjNI);
if (!ObjName)
return ObjName.takeError();
auto VName = Strings.getStringForID(Entry.second.VFileNI);
if (!VName)
return VName.takeError();
}
assert(Reader.bytesRemaining() == 0);
return Error::success();
}
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