contrib/llvm/include/llvm/DebugInfo/DWARF/DWARFGdbIndex.h

   1 //===- DWARFGdbIndex.h ------------------------------------------*- C++ -*-===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9
  10 #ifndef LLVM_DEBUGINFO_DWARF_DWARFGDBINDEX_H
  11 #define LLVM_DEBUGINFO_DWARF_DWARFGDBINDEX_H
  12
  13 #include "llvm/ADT/SmallVector.h"
  14 #include "llvm/ADT/StringRef.h"
  15 #include "llvm/Support/DataExtractor.h"
  16 #include <cstdint>
  17 #include <utility>
  18
  19 namespace llvm {
  20
  21 class raw_ostream;
  22
  23 class DWARFGdbIndex {
  24   uint32_t Version;
  25
  26   uint32_t CuListOffset;
  27   uint32_t AddressAreaOffset;
  28   uint32_t SymbolTableOffset;
  29   uint32_t ConstantPoolOffset;
  30
  31   struct CompUnitEntry {
  32     uint64_t Offset; /// Offset of a CU in the .debug_info section.
  33     uint64_t Length; /// Length of that CU.
  34   };
  35   SmallVector<CompUnitEntry, 0> CuList;
  36
  37   struct AddressEntry {
  38     uint64_t LowAddress;  /// The low address.
  39     uint64_t HighAddress; /// The high address.
  40     uint32_t CuIndex;     /// The CU index.
  41   };
  42   SmallVector<AddressEntry, 0> AddressArea;
  43
  44   struct SymTableEntry {
  45     uint32_t NameOffset; /// Offset of the symbol's name in the constant pool.
  46     uint32_t VecOffset;  /// Offset of the CU vector in the constant pool.
  47   };
  48   SmallVector<SymTableEntry, 0> SymbolTable;
  49
  50   /// Each value is CU index + attributes.
  51   SmallVector<std::pair<uint32_t, SmallVector<uint32_t, 0>>, 0>
  52       ConstantPoolVectors;
  53
  54   StringRef ConstantPoolStrings;
  55   uint32_t StringPoolOffset;
  56
  57   void dumpCUList(raw_ostream &OS) const;
  58   void dumpAddressArea(raw_ostream &OS) const;
  59   void dumpSymbolTable(raw_ostream &OS) const;
  60   void dumpConstantPool(raw_ostream &OS) const;
  61
  62   bool parseImpl(DataExtractor Data);
  63
  64 public:
  65   void dump(raw_ostream &OS);
  66   void parse(DataExtractor Data);
  67
  68   bool HasContent = false;
  69   bool HasError = false;
  70 };
  71
  72 } // end namespace llvm
  73
  74 #endif // LLVM_DEBUGINFO_DWARF_DWARFGDBINDEX_H