63 lines · cpp
1//===- DebugFrameDataSubsection.cpp -----------------------------*- C++ -*-===//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/CodeView/DebugFrameDataSubsection.h"10#include "llvm/DebugInfo/CodeView/CodeViewError.h"11#include "llvm/Support/BinaryStreamReader.h"12#include "llvm/Support/BinaryStreamWriter.h"13 14using namespace llvm;15using namespace llvm::codeview;16 17Error DebugFrameDataSubsectionRef::initialize(BinaryStreamReader Reader) {18 if (Reader.bytesRemaining() % sizeof(FrameData) != 0) {19 if (auto EC = Reader.readObject(RelocPtr))20 return EC;21 }22 23 if (Reader.bytesRemaining() % sizeof(FrameData) != 0)24 return make_error<CodeViewError>(cv_error_code::corrupt_record,25 "Invalid frame data record format!");26 27 uint32_t Count = Reader.bytesRemaining() / sizeof(FrameData);28 if (auto EC = Reader.readArray(Frames, Count))29 return EC;30 return Error::success();31}32 33Error DebugFrameDataSubsectionRef::initialize(BinaryStreamRef Section) {34 BinaryStreamReader Reader(Section);35 return initialize(Reader);36}37 38uint32_t DebugFrameDataSubsection::calculateSerializedSize() const {39 uint32_t Size = sizeof(FrameData) * Frames.size();40 if (IncludeRelocPtr)41 Size += sizeof(uint32_t);42 return Size;43}44 45Error DebugFrameDataSubsection::commit(BinaryStreamWriter &Writer) const {46 if (IncludeRelocPtr) {47 if (auto EC = Writer.writeInteger<uint32_t>(0))48 return EC;49 }50 51 std::vector<FrameData> SortedFrames(Frames.begin(), Frames.end());52 llvm::sort(SortedFrames, [](const FrameData &LHS, const FrameData &RHS) {53 return LHS.RvaStart < RHS.RvaStart;54 });55 if (auto EC = Writer.writeArray(ArrayRef(SortedFrames)))56 return EC;57 return Error::success();58}59 60void DebugFrameDataSubsection::addFrameData(const FrameData &Frame) {61 Frames.push_back(Frame);62}63