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//===- DebugFrameDataSubsection.cpp -----------------------------*- C++ -*-===//
//
// 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/CodeView/DebugFrameDataSubsection.h"
#include "llvm/DebugInfo/CodeView/CodeViewError.h"
#include "llvm/Support/BinaryStreamReader.h"
#include "llvm/Support/BinaryStreamWriter.h"
using namespace llvm;
using namespace llvm::codeview;
Error DebugFrameDataSubsectionRef::initialize(BinaryStreamReader Reader) {
if (Reader.bytesRemaining() % sizeof(FrameData) != 0) {
if (auto EC = Reader.readObject(RelocPtr))
return EC;
}
if (Reader.bytesRemaining() % sizeof(FrameData) != 0)
return make_error<CodeViewError>(cv_error_code::corrupt_record,
"Invalid frame data record format!");
uint32_t Count = Reader.bytesRemaining() / sizeof(FrameData);
if (auto EC = Reader.readArray(Frames, Count))
return EC;
return Error::success();
}
Error DebugFrameDataSubsectionRef::initialize(BinaryStreamRef Section) {
BinaryStreamReader Reader(Section);
return initialize(Reader);
}
uint32_t DebugFrameDataSubsection::calculateSerializedSize() const {
uint32_t Size = sizeof(FrameData) * Frames.size();
if (IncludeRelocPtr)
Size += sizeof(uint32_t);
return Size;
}
Error DebugFrameDataSubsection::commit(BinaryStreamWriter &Writer) const {
if (IncludeRelocPtr) {
if (auto EC = Writer.writeInteger<uint32_t>(0))
return EC;
}
std::vector<FrameData> SortedFrames(Frames.begin(), Frames.end());
llvm::sort(SortedFrames, [](const FrameData &LHS, const FrameData &RHS) {
return LHS.RvaStart < RHS.RvaStart;
});
if (auto EC = Writer.writeArray(ArrayRef(SortedFrames)))
return EC;
return Error::success();
}
void DebugFrameDataSubsection::addFrameData(const FrameData &Frame) {
Frames.push_back(Frame);
}
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