104 lines
3.1 KiB
C
104 lines
3.1 KiB
C
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//===- DebugChecksumsSubsection.h -------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_DEBUGINFO_CODEVIEW_DEBUGCHECKSUMSSUBSECTION_H
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#define LLVM_DEBUGINFO_CODEVIEW_DEBUGCHECKSUMSSUBSECTION_H
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#include "llvm/ADT/ArrayRef.h"
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#include "llvm/ADT/DenseMap.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/DebugInfo/CodeView/CodeView.h"
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#include "llvm/DebugInfo/CodeView/DebugSubsection.h"
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#include "llvm/Support/Allocator.h"
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#include "llvm/Support/BinaryStreamArray.h"
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#include "llvm/Support/BinaryStreamReader.h"
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#include "llvm/Support/BinaryStreamRef.h"
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#include "llvm/Support/Error.h"
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#include <cstdint>
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#include <vector>
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namespace llvm {
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namespace codeview {
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class DebugStringTableSubsection;
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struct FileChecksumEntry {
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uint32_t FileNameOffset; // Byte offset of filename in global stringtable.
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FileChecksumKind Kind; // The type of checksum.
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ArrayRef<uint8_t> Checksum; // The bytes of the checksum.
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};
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} // end namespace codeview
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template <> struct VarStreamArrayExtractor<codeview::FileChecksumEntry> {
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public:
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using ContextType = void;
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Error operator()(BinaryStreamRef Stream, uint32_t &Len,
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codeview::FileChecksumEntry &Item);
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};
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namespace codeview {
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class DebugChecksumsSubsectionRef final : public DebugSubsectionRef {
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using FileChecksumArray = VarStreamArray<codeview::FileChecksumEntry>;
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using Iterator = FileChecksumArray::Iterator;
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public:
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DebugChecksumsSubsectionRef()
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: DebugSubsectionRef(DebugSubsectionKind::FileChecksums) {}
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static bool classof(const DebugSubsectionRef *S) {
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return S->kind() == DebugSubsectionKind::FileChecksums;
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}
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bool valid() const { return Checksums.valid(); }
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Error initialize(BinaryStreamReader Reader);
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Error initialize(BinaryStreamRef Stream);
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Iterator begin() const { return Checksums.begin(); }
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Iterator end() const { return Checksums.end(); }
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const FileChecksumArray &getArray() const { return Checksums; }
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private:
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FileChecksumArray Checksums;
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};
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class DebugChecksumsSubsection final : public DebugSubsection {
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public:
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explicit DebugChecksumsSubsection(DebugStringTableSubsection &Strings);
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static bool classof(const DebugSubsection *S) {
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return S->kind() == DebugSubsectionKind::FileChecksums;
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}
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void addChecksum(StringRef FileName, FileChecksumKind Kind,
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ArrayRef<uint8_t> Bytes);
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uint32_t calculateSerializedSize() const override;
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Error commit(BinaryStreamWriter &Writer) const override;
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uint32_t mapChecksumOffset(StringRef FileName) const;
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private:
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DebugStringTableSubsection &Strings;
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DenseMap<uint32_t, uint32_t> OffsetMap;
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uint32_t SerializedSize = 0;
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BumpPtrAllocator Storage;
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std::vector<FileChecksumEntry> Checksums;
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};
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} // end namespace codeview
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} // end namespace llvm
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#endif // LLVM_DEBUGINFO_CODEVIEW_DEBUGCHECKSUMSSUBSECTION_H
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