1 //===- SymbolStream.cpp - PDB Symbol 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-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "llvm/DebugInfo/PDB/Native/SymbolStream.h" 10 11 #include "llvm/DebugInfo/CodeView/CodeView.h" 12 #include "llvm/DebugInfo/CodeView/SymbolRecord.h" 13 #include "llvm/DebugInfo/MSF/MappedBlockStream.h" 14 #include "llvm/Support/BinaryStreamReader.h" 15 #include "llvm/Support/Endian.h" 16 17 using namespace llvm; 18 using namespace llvm::msf; 19 using namespace llvm::support; 20 using namespace llvm::pdb; 21 22 SymbolStream::SymbolStream(std::unique_ptr<MappedBlockStream> Stream) 23 : Stream(std::move(Stream)) {} 24 25 SymbolStream::~SymbolStream() {} 26 27 Error SymbolStream::reload() { 28 BinaryStreamReader Reader(*Stream); 29 30 if (auto EC = Reader.readArray(SymbolRecords, Stream->getLength())) 31 return EC; 32 33 return Error::success(); 34 } 35 36 iterator_range<codeview::CVSymbolArray::Iterator> 37 SymbolStream::getSymbols(bool *HadError) const { 38 return llvm::make_range(SymbolRecords.begin(HadError), SymbolRecords.end()); 39 } 40 41 Error SymbolStream::commit() { return Error::success(); } 42 43 codeview::CVSymbol SymbolStream::readRecord(uint32_t Offset) const { 44 return *SymbolRecords.at(Offset); 45 } 46