diff options
Diffstat (limited to 'contrib/llvm-project/llvm/lib/DebugInfo/CodeView/DebugFrameDataSubsection.cpp')
-rw-r--r-- | contrib/llvm-project/llvm/lib/DebugInfo/CodeView/DebugFrameDataSubsection.cpp | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/contrib/llvm-project/llvm/lib/DebugInfo/CodeView/DebugFrameDataSubsection.cpp b/contrib/llvm-project/llvm/lib/DebugInfo/CodeView/DebugFrameDataSubsection.cpp new file mode 100644 index 000000000000..be8c32d5b294 --- /dev/null +++ b/contrib/llvm-project/llvm/lib/DebugInfo/CodeView/DebugFrameDataSubsection.cpp @@ -0,0 +1,61 @@ +//===- 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" + +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()); + std::sort(SortedFrames.begin(), SortedFrames.end(), + [](const FrameData &LHS, const FrameData &RHS) { + return LHS.RvaStart < RHS.RvaStart; + }); + if (auto EC = Writer.writeArray(makeArrayRef(SortedFrames))) + return EC; + return Error::success(); +} + +void DebugFrameDataSubsection::addFrameData(const FrameData &Frame) { + Frames.push_back(Frame); +} |