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//===- DWARFGdbIndex.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_DWARF_DWARFGDBINDEX_H
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#define LLVM_DEBUGINFO_DWARF_DWARFGDBINDEX_H
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/ADT/StringRef.h"
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#include <cstdint>
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#include <utility>
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namespace llvm {
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class raw_ostream;
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class DataExtractor;
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class DWARFGdbIndex {
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  uint32_t Version;
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  uint32_t CuListOffset;
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  uint32_t TuListOffset;
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  uint32_t AddressAreaOffset;
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  uint32_t SymbolTableOffset;
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  uint32_t ConstantPoolOffset;
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  struct CompUnitEntry {
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    uint64_t Offset; /// Offset of a CU in the .debug_info section.
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    uint64_t Length; /// Length of that CU.
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  };
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  SmallVector<CompUnitEntry, 0> CuList;
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  struct TypeUnitEntry {
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    uint64_t Offset;
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    uint64_t TypeOffset;
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    uint64_t TypeSignature;
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  };
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  SmallVector<TypeUnitEntry, 0> TuList;
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  struct AddressEntry {
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    uint64_t LowAddress;  /// The low address.
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    uint64_t HighAddress; /// The high address.
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    uint32_t CuIndex;     /// The CU index.
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  };
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  SmallVector<AddressEntry, 0> AddressArea;
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  struct SymTableEntry {
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    uint32_t NameOffset; /// Offset of the symbol's name in the constant pool.
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    uint32_t VecOffset;  /// Offset of the CU vector in the constant pool.
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  };
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  SmallVector<SymTableEntry, 0> SymbolTable;
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  /// Each value is CU index + attributes.
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  SmallVector<std::pair<uint32_t, SmallVector<uint32_t, 0>>, 0>
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      ConstantPoolVectors;
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  StringRef ConstantPoolStrings;
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  uint32_t StringPoolOffset;
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  void dumpCUList(raw_ostream &OS) const;
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  void dumpTUList(raw_ostream &OS) const;
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  void dumpAddressArea(raw_ostream &OS) const;
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  void dumpSymbolTable(raw_ostream &OS) const;
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  void dumpConstantPool(raw_ostream &OS) const;
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  bool parseImpl(DataExtractor Data);
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public:
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  void dump(raw_ostream &OS);
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  void parse(DataExtractor Data);
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  bool HasContent = false;
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  bool HasError = false;
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};
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} // end namespace llvm
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#endif // LLVM_DEBUGINFO_DWARF_DWARFGDBINDEX_H