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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@351636 91177308-0d34-0410-b5e6-96231b3b80d8
104 lines
3.1 KiB
C++
104 lines
3.1 KiB
C++
//===- 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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