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Editing: DebugChecksumsSubsection.h
//===- DebugChecksumsSubsection.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_DEBUGCHECKSUMSSUBSECTION_H #define LLVM_DEBUGINFO_CODEVIEW_DEBUGCHECKSUMSSUBSECTION_H #include "llvm/ADT/ArrayRef.h" #include "llvm/ADT/DenseMap.h" #include "llvm/ADT/StringRef.h" #include "llvm/DebugInfo/CodeView/CodeView.h" #include "llvm/DebugInfo/CodeView/DebugSubsection.h" #include "llvm/Support/Allocator.h" #include "llvm/Support/BinaryStreamArray.h" #include "llvm/Support/BinaryStreamRef.h" #include "llvm/Support/Error.h" #include <cstdint> #include <vector> namespace llvm { class BinaryStreamReader; class BinaryStreamWriter; namespace codeview { class DebugStringTableSubsection; struct FileChecksumEntry { uint32_t FileNameOffset; // Byte offset of filename in global stringtable. FileChecksumKind Kind; // The type of checksum. ArrayRef<uint8_t> Checksum; // The bytes of the checksum. }; } // end namespace codeview template <> struct VarStreamArrayExtractor<codeview::FileChecksumEntry> { public: using ContextType = void; Error operator()(BinaryStreamRef Stream, uint32_t &Len, codeview::FileChecksumEntry &Item); }; namespace codeview { class DebugChecksumsSubsectionRef final : public DebugSubsectionRef { using FileChecksumArray = VarStreamArray<codeview::FileChecksumEntry>; using Iterator = FileChecksumArray::Iterator; public: DebugChecksumsSubsectionRef() : DebugSubsectionRef(DebugSubsectionKind::FileChecksums) {} static bool classof(const DebugSubsectionRef *S) { return S->kind() == DebugSubsectionKind::FileChecksums; } bool valid() const { return Checksums.valid(); } Error initialize(BinaryStreamReader Reader); Error initialize(BinaryStreamRef Stream); Iterator begin() const { return Checksums.begin(); } Iterator end() const { return Checksums.end(); } const FileChecksumArray &getArray() const { return Checksums; } private: FileChecksumArray Checksums; }; class DebugChecksumsSubsection final : public DebugSubsection { public: explicit DebugChecksumsSubsection(DebugStringTableSubsection &Strings); static bool classof(const DebugSubsection *S) { return S->kind() == DebugSubsectionKind::FileChecksums; } void addChecksum(StringRef FileName, FileChecksumKind Kind, ArrayRef<uint8_t> Bytes); uint32_t calculateSerializedSize() const override; Error commit(BinaryStreamWriter &Writer) const override; uint32_t mapChecksumOffset(StringRef FileName) const; private: DebugStringTableSubsection &Strings; DenseMap<uint32_t, uint32_t> OffsetMap; uint32_t SerializedSize = 0; BumpPtrAllocator Storage; std::vector<FileChecksumEntry> Checksums; }; } // end namespace codeview } // end namespace llvm #endif // LLVM_DEBUGINFO_CODEVIEW_DEBUGCHECKSUMSSUBSECTION_H
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