diff options
Diffstat (limited to 'contrib/llvm/lib/DebugInfo/CodeView/DebugLinesSubsection.cpp')
-rw-r--r-- | contrib/llvm/lib/DebugInfo/CodeView/DebugLinesSubsection.cpp | 160 |
1 files changed, 0 insertions, 160 deletions
diff --git a/contrib/llvm/lib/DebugInfo/CodeView/DebugLinesSubsection.cpp b/contrib/llvm/lib/DebugInfo/CodeView/DebugLinesSubsection.cpp deleted file mode 100644 index ea16c0a6c671..000000000000 --- a/contrib/llvm/lib/DebugInfo/CodeView/DebugLinesSubsection.cpp +++ /dev/null @@ -1,160 +0,0 @@ -//===- DebugLinesSubsection.cpp -------------------------------------------===// -// -// 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/DebugLinesSubsection.h" -#include "llvm/ADT/ArrayRef.h" -#include "llvm/DebugInfo/CodeView/CodeView.h" -#include "llvm/DebugInfo/CodeView/CodeViewError.h" -#include "llvm/DebugInfo/CodeView/DebugChecksumsSubsection.h" -#include "llvm/Support/BinaryStreamReader.h" -#include "llvm/Support/BinaryStreamWriter.h" -#include "llvm/Support/Error.h" -#include <cassert> -#include <cstdint> - -using namespace llvm; -using namespace llvm::codeview; - -Error LineColumnExtractor::operator()(BinaryStreamRef Stream, uint32_t &Len, - LineColumnEntry &Item) { - const LineBlockFragmentHeader *BlockHeader; - BinaryStreamReader Reader(Stream); - if (auto EC = Reader.readObject(BlockHeader)) - return EC; - bool HasColumn = Header->Flags & uint16_t(LF_HaveColumns); - uint32_t LineInfoSize = - BlockHeader->NumLines * - (sizeof(LineNumberEntry) + (HasColumn ? sizeof(ColumnNumberEntry) : 0)); - if (BlockHeader->BlockSize < sizeof(LineBlockFragmentHeader)) - return make_error<CodeViewError>(cv_error_code::corrupt_record, - "Invalid line block record size"); - uint32_t Size = BlockHeader->BlockSize - sizeof(LineBlockFragmentHeader); - if (LineInfoSize > Size) - return make_error<CodeViewError>(cv_error_code::corrupt_record, - "Invalid line block record size"); - // The value recorded in BlockHeader->BlockSize includes the size of - // LineBlockFragmentHeader. - Len = BlockHeader->BlockSize; - Item.NameIndex = BlockHeader->NameIndex; - if (auto EC = Reader.readArray(Item.LineNumbers, BlockHeader->NumLines)) - return EC; - if (HasColumn) { - if (auto EC = Reader.readArray(Item.Columns, BlockHeader->NumLines)) - return EC; - } - return Error::success(); -} - -DebugLinesSubsectionRef::DebugLinesSubsectionRef() - : DebugSubsectionRef(DebugSubsectionKind::Lines) {} - -Error DebugLinesSubsectionRef::initialize(BinaryStreamReader Reader) { - if (auto EC = Reader.readObject(Header)) - return EC; - - LinesAndColumns.getExtractor().Header = Header; - if (auto EC = Reader.readArray(LinesAndColumns, Reader.bytesRemaining())) - return EC; - - return Error::success(); -} - -bool DebugLinesSubsectionRef::hasColumnInfo() const { - return !!(Header->Flags & LF_HaveColumns); -} - -DebugLinesSubsection::DebugLinesSubsection(DebugChecksumsSubsection &Checksums, - DebugStringTableSubsection &Strings) - : DebugSubsection(DebugSubsectionKind::Lines), Checksums(Checksums) {} - -void DebugLinesSubsection::createBlock(StringRef FileName) { - uint32_t Offset = Checksums.mapChecksumOffset(FileName); - - Blocks.emplace_back(Offset); -} - -void DebugLinesSubsection::addLineInfo(uint32_t Offset, const LineInfo &Line) { - Block &B = Blocks.back(); - LineNumberEntry LNE; - LNE.Flags = Line.getRawData(); - LNE.Offset = Offset; - B.Lines.push_back(LNE); -} - -void DebugLinesSubsection::addLineAndColumnInfo(uint32_t Offset, - const LineInfo &Line, - uint32_t ColStart, - uint32_t ColEnd) { - Block &B = Blocks.back(); - assert(B.Lines.size() == B.Columns.size()); - - addLineInfo(Offset, Line); - ColumnNumberEntry CNE; - CNE.StartColumn = ColStart; - CNE.EndColumn = ColEnd; - B.Columns.push_back(CNE); -} - -Error DebugLinesSubsection::commit(BinaryStreamWriter &Writer) const { - LineFragmentHeader Header; - Header.CodeSize = CodeSize; - Header.Flags = hasColumnInfo() ? LF_HaveColumns : 0; - Header.RelocOffset = RelocOffset; - Header.RelocSegment = RelocSegment; - - if (auto EC = Writer.writeObject(Header)) - return EC; - - for (const auto &B : Blocks) { - LineBlockFragmentHeader BlockHeader; - assert(B.Lines.size() == B.Columns.size() || B.Columns.empty()); - - BlockHeader.NumLines = B.Lines.size(); - BlockHeader.BlockSize = sizeof(LineBlockFragmentHeader); - BlockHeader.BlockSize += BlockHeader.NumLines * sizeof(LineNumberEntry); - if (hasColumnInfo()) - BlockHeader.BlockSize += BlockHeader.NumLines * sizeof(ColumnNumberEntry); - BlockHeader.NameIndex = B.ChecksumBufferOffset; - if (auto EC = Writer.writeObject(BlockHeader)) - return EC; - - if (auto EC = Writer.writeArray(makeArrayRef(B.Lines))) - return EC; - - if (hasColumnInfo()) { - if (auto EC = Writer.writeArray(makeArrayRef(B.Columns))) - return EC; - } - } - return Error::success(); -} - -uint32_t DebugLinesSubsection::calculateSerializedSize() const { - uint32_t Size = sizeof(LineFragmentHeader); - for (const auto &B : Blocks) { - Size += sizeof(LineBlockFragmentHeader); - Size += B.Lines.size() * sizeof(LineNumberEntry); - if (hasColumnInfo()) - Size += B.Columns.size() * sizeof(ColumnNumberEntry); - } - return Size; -} - -void DebugLinesSubsection::setRelocationAddress(uint16_t Segment, - uint32_t Offset) { - RelocOffset = Offset; - RelocSegment = Segment; -} - -void DebugLinesSubsection::setCodeSize(uint32_t Size) { CodeSize = Size; } - -void DebugLinesSubsection::setFlags(LineFlags Flags) { this->Flags = Flags; } - -bool DebugLinesSubsection::hasColumnInfo() const { - return Flags & LF_HaveColumns; -} |