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📄 AppendingTypeTableBuilder.h(2.24 KB)
📄 CVRecord.h(4.16 KB)
📄 CVSymbolVisitor.h(1.23 KB)
📄 CVTypeVisitor.h(2.19 KB)
📄 CodeView.h(17.73 KB)
📄 CodeViewError.h(1.46 KB)
📄 CodeViewRecordIO.h(7.83 KB)
📄 CodeViewRegisters.def(16.43 KB)
📄 CodeViewSymbols.def(9.57 KB)
📄 CodeViewTypes.def(7.58 KB)
📄 ContinuationRecordBuilder.h(2.14 KB)
📄 DebugChecksumsSubsection.h(3.06 KB)
📄 DebugCrossExSubsection.h(2.1 KB)
📄 DebugCrossImpSubsection.h(2.76 KB)
📄 DebugFrameDataSubsection.h(2.02 KB)
📄 DebugInlineeLinesSubsection.h(3.86 KB)
📄 DebugLinesSubsection.h(4.77 KB)
📄 DebugStringTableSubsection.h(2.92 KB)
📄 DebugSubsection.h(1.43 KB)
📄 DebugSubsectionRecord.h(3.09 KB)
📄 DebugSubsectionVisitor.h(4.28 KB)
📄 DebugSymbolRVASubsection.h(1.83 KB)
📄 DebugSymbolsSubsection.h(1.6 KB)
📄 DebugUnknownSubsection.h(925 B)
📄 EnumTables.h(2.32 KB)
📄 Formatters.h(1.94 KB)
📄 FunctionId.h(1.34 KB)
📄 GUID.h(1.34 KB)
📄 GlobalTypeTableBuilder.h(4.39 KB)
📄 LazyRandomTypeCollection.h(4.64 KB)
📄 Line.h(3.57 KB)
📄 MergingTypeTableBuilder.h(2.71 KB)
📄 RecordName.h(809 B)
📄 RecordSerialization.h(7.07 KB)
📄 SimpleTypeSerializer.h(1.24 KB)
📄 StringsAndChecksums.h(3.92 KB)
📄 SymbolDeserializer.h(3.47 KB)
📄 SymbolDumpDelegate.h(1.18 KB)
📄 SymbolDumper.h(2.05 KB)
📄 SymbolRecord.h(27.67 KB)
📄 SymbolRecordHelpers.h(1.78 KB)
📄 SymbolRecordMapping.h(1.52 KB)
📄 SymbolSerializer.h(2.99 KB)
📄 SymbolVisitorCallbackPipeline.h(2.58 KB)
📄 SymbolVisitorCallbacks.h(1.81 KB)
📄 SymbolVisitorDelegate.h(1.02 KB)
📄 TypeCollection.h(1.35 KB)
📄 TypeDeserializer.h(5.47 KB)
📄 TypeDumpVisitor.h(3.26 KB)
📄 TypeHashing.h(8.75 KB)
📄 TypeIndex.h(9.64 KB)
📄 TypeIndexDiscovery.h(1.71 KB)
📄 TypeRecord.h(31.56 KB)
📄 TypeRecordHelpers.h(1.47 KB)
📄 TypeRecordMapping.h(1.97 KB)
📄 TypeStreamMerger.h(4.51 KB)
📄 TypeSymbolEmitter.h(884 B)
📄 TypeTableCollection.h(1.25 KB)
📄 TypeVisitorCallbackPipeline.h(3.74 KB)
📄 TypeVisitorCallbacks.h(2.67 KB)

Editing: CVRecord.h

//===- CVRecord.h -----------------------------------------------*- 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
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_DEBUGINFO_CODEVIEW_RECORDITERATOR_H
#define LLVM_DEBUGINFO_CODEVIEW_RECORDITERATOR_H

#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/Optional.h"
#include "llvm/DebugInfo/CodeView/CodeViewError.h"
#include "llvm/DebugInfo/CodeView/RecordSerialization.h"
#include "llvm/DebugInfo/CodeView/TypeIndex.h"
#include "llvm/Support/BinaryStreamReader.h"
#include "llvm/Support/BinaryStreamRef.h"
#include "llvm/Support/Endian.h"
#include "llvm/Support/Error.h"
#include <cstdint>

namespace llvm {

namespace codeview {

/// CVRecord is a fat pointer (base + size pair) to a symbol or type record.
/// Carrying the size separately instead of trusting the size stored in the
/// record prefix provides some extra safety and flexibility.
template <typename Kind> class CVRecord {
public:
  CVRecord() = default;

CVRecord(ArrayRef<uint8_t> Data) : RecordData(Data) {}

CVRecord(const RecordPrefix *P, size_t Size)
      : RecordData(reinterpret_cast<const uint8_t *>(P), Size) {}

bool valid() const { return kind() != Kind(0); }

uint32_t length() const { return RecordData.size(); }

Kind kind() const {
    if (RecordData.size() < sizeof(RecordPrefix))
      return Kind(0);
    return static_cast<Kind>(static_cast<uint16_t>(
        reinterpret_cast<const RecordPrefix *>(RecordData.data())->RecordKind));
  }

ArrayRef<uint8_t> data() const { return RecordData; }

StringRef str_data() const {
    return StringRef(reinterpret_cast<const char *>(RecordData.data()),
                     RecordData.size());
  }

ArrayRef<uint8_t> content() const {
    return RecordData.drop_front(sizeof(RecordPrefix));
  }

ArrayRef<uint8_t> RecordData;
};

template <typename Kind> struct RemappedRecord {
  explicit RemappedRecord(const CVRecord<Kind> &R) : OriginalRecord(R) {}

CVRecord<Kind> OriginalRecord;
  SmallVector<std::pair<uint32_t, TypeIndex>, 8> Mappings;
};

template <typename Record, typename Func>
Error forEachCodeViewRecord(ArrayRef<uint8_t> StreamBuffer, Func F) {
  while (!StreamBuffer.empty()) {
    if (StreamBuffer.size() < sizeof(RecordPrefix))
      return make_error<CodeViewError>(cv_error_code::corrupt_record);

const RecordPrefix *Prefix =
        reinterpret_cast<const RecordPrefix *>(StreamBuffer.data());

size_t RealLen = Prefix->RecordLen + 2;
    if (StreamBuffer.size() < RealLen)
      return make_error<CodeViewError>(cv_error_code::corrupt_record);

ArrayRef<uint8_t> Data = StreamBuffer.take_front(RealLen);
    StreamBuffer = StreamBuffer.drop_front(RealLen);

Record R(Data);
    if (auto EC = F(R))
      return EC;
  }
  return Error::success();
}

/// Read a complete record from a stream at a random offset.
template <typename Kind>
inline Expected<CVRecord<Kind>> readCVRecordFromStream(BinaryStreamRef Stream,
                                                       uint32_t Offset) {
  const RecordPrefix *Prefix = nullptr;
  BinaryStreamReader Reader(Stream);
  Reader.setOffset(Offset);

if (auto EC = Reader.readObject(Prefix))
    return std::move(EC);
  if (Prefix->RecordLen < 2)
    return make_error<CodeViewError>(cv_error_code::corrupt_record);

Reader.setOffset(Offset);
  ArrayRef<uint8_t> RawData;
  if (auto EC = Reader.readBytes(RawData, Prefix->RecordLen + sizeof(uint16_t)))
    return std::move(EC);
  return codeview::CVRecord<Kind>(RawData);
}

} // end namespace codeview

template <typename Kind>
struct VarStreamArrayExtractor<codeview::CVRecord<Kind>> {
  Error operator()(BinaryStreamRef Stream, uint32_t &Len,
                   codeview::CVRecord<Kind> &Item) {
    auto ExpectedRec = codeview::readCVRecordFromStream<Kind>(Stream, 0);
    if (!ExpectedRec)
      return ExpectedRec.takeError();
    Item = *ExpectedRec;
    Len = ExpectedRec->length();
    return Error::success();
  }
};

} // end namespace llvm

#endif // LLVM_DEBUGINFO_CODEVIEW_RECORDITERATOR_H

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Editing: CVRecord.h

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