65 lines · cpp
1//===- InjectedSourceStream.cpp - PDB Headerblock Stream Access -----------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#include "llvm/DebugInfo/PDB/Native/InjectedSourceStream.h"10 11#include "llvm/DebugInfo/MSF/MappedBlockStream.h"12#include "llvm/DebugInfo/PDB/Native/HashTable.h"13#include "llvm/DebugInfo/PDB/Native/PDBStringTable.h"14#include "llvm/DebugInfo/PDB/Native/RawConstants.h"15#include "llvm/DebugInfo/PDB/Native/RawTypes.h"16#include "llvm/Support/BinaryStreamReader.h"17 18using namespace llvm;19using namespace llvm::msf;20using namespace llvm::support;21using namespace llvm::pdb;22 23InjectedSourceStream::InjectedSourceStream(24 std::unique_ptr<MappedBlockStream> Stream)25 : Stream(std::move(Stream)) {}26 27Error InjectedSourceStream::reload(const PDBStringTable &Strings) {28 BinaryStreamReader Reader(*Stream);29 30 if (auto EC = Reader.readObject(Header))31 return EC;32 33 if (Header->Version !=34 static_cast<uint32_t>(PdbRaw_SrcHeaderBlockVer::SrcVerOne))35 return make_error<RawError>(raw_error_code::corrupt_file,36 "Invalid headerblock header version");37 38 if (auto EC = InjectedSourceTable.load(Reader))39 return EC;40 41 for (const auto& Entry : *this) {42 if (Entry.second.Size != sizeof(SrcHeaderBlockEntry))43 return make_error<RawError>(raw_error_code::corrupt_file,44 "Invalid headerbock entry size");45 if (Entry.second.Version !=46 static_cast<uint32_t>(PdbRaw_SrcHeaderBlockVer::SrcVerOne))47 return make_error<RawError>(raw_error_code::corrupt_file,48 "Invalid headerbock entry version");49 50 // Check that all name references are valid.51 auto Name = Strings.getStringForID(Entry.second.FileNI);52 if (!Name)53 return Name.takeError();54 auto ObjName = Strings.getStringForID(Entry.second.ObjNI);55 if (!ObjName)56 return ObjName.takeError();57 auto VName = Strings.getStringForID(Entry.second.VFileNI);58 if (!VName)59 return VName.takeError();60 }61 62 assert(Reader.bytesRemaining() == 0);63 return Error::success();64}65