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_LIB_DEBUGINFO_DWARFGDBINDEX_H
  11 #define LLVM_LIB_DEBUGINFO_DWARFGDBINDEX_H
  12
  13 #include "llvm/Support/DataExtractor.h"
  14 #include "llvm/Support/Error.h"
  15 #include "llvm/Support/raw_ostream.h"
  16
  17 namespace llvm {
  18 class DWARFGdbIndex {
  19   uint32_t Version;
  20
  21   uint32_t CuListOffset;
  22   uint32_t AddressAreaOffset;
  23   uint32_t SymbolTableOffset;
  24   uint32_t ConstantPoolOffset;
  25
  26   struct CompUnitEntry {
  27     uint64_t Offset; // Offset of a CU in the .debug_info section.
  28     uint64_t Length; // Length of that CU.
  29   };
  30   SmallVector<CompUnitEntry, 0> CuList;
  31
  32   struct AddressEntry {
  33     uint64_t LowAddress;  // The low address.
  34     uint64_t HighAddress; // The high address.
  35     uint32_t CuIndex;     // The CU index.
  36   };
  37   SmallVector<AddressEntry, 0> AddressArea;
  38
  39   struct SymTableEntry {
  40     uint32_t NameOffset; // Offset of the symbol's name in the constant pool.
  41     uint32_t VecOffset;  // Offset of the CU vector in the constant pool.
  42   };
  43   SmallVector<SymTableEntry, 0> SymbolTable;
  44
  45   // Each value is CU index + attributes.
  46   SmallVector<std::pair<uint32_t, SmallVector<uint32_t, 0>>, 0>
  47       ConstantPoolVectors;
  48
  49   StringRef ConstantPoolStrings;
  50   uint32_t StringPoolOffset;
  51
  52   void dumpCUList(raw_ostream &OS) const;
  53   void dumpAddressArea(raw_ostream &OS) const;
  54   void dumpSymbolTable(raw_ostream &OS) const;
  55   void dumpConstantPool(raw_ostream &OS) const;
  56
  57   bool parseImpl(DataExtractor Data);
  58
  59 public:
  60   void dump(raw_ostream &OS);
  61   void parse(DataExtractor Data);
  62
  63   bool HasContent = false;
  64   bool HasError = false;
  65 };
  66 }
  67
  68 #endif // LLVM_LIB_DEBUGINFO_DWARFGDBINDEX_H