include/llvm/DebugInfo/DWARF/DWARFDebugAbbrev.h

   1 //===-- DWARFDebugAbbrev.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_DWARFDEBUGABBREV_H
  11 #define LLVM_LIB_DEBUGINFO_DWARFDEBUGABBREV_H
  12
  13 #include "llvm/DebugInfo/DWARF/DWARFAbbreviationDeclaration.h"
  14 #include <list>
  15 #include <map>
  16 #include <vector>
  17
  18 namespace llvm {
  19
  20 class DWARFAbbreviationDeclarationSet {
  21   uint32_t Offset;
  22   /// Code of the first abbreviation, if all abbreviations in the set have
  23   /// consecutive codes. UINT32_MAX otherwise.
  24   uint32_t FirstAbbrCode;
  25   std::vector<DWARFAbbreviationDeclaration> Decls;
  26
  27 public:
  28   DWARFAbbreviationDeclarationSet();
  29
  30   uint32_t getOffset() const { return Offset; }
  31   void dump(raw_ostream &OS) const;
  32   bool extract(DataExtractor Data, uint32_t *OffsetPtr);
  33
  34   const DWARFAbbreviationDeclaration *
  35   getAbbreviationDeclaration(uint32_t AbbrCode) const;
  36
  37 private:
  38   void clear();
  39 };
  40
  41 class DWARFDebugAbbrev {
  42   typedef std::map<uint64_t, DWARFAbbreviationDeclarationSet>
  43     DWARFAbbreviationDeclarationSetMap;
  44
  45   DWARFAbbreviationDeclarationSetMap AbbrDeclSets;
  46   mutable DWARFAbbreviationDeclarationSetMap::const_iterator PrevAbbrOffsetPos;
  47
  48 public:
  49   DWARFDebugAbbrev();
  50
  51   const DWARFAbbreviationDeclarationSet *
  52   getAbbreviationDeclarationSet(uint64_t CUAbbrOffset) const;
  53
  54   void dump(raw_ostream &OS) const;
  55   void extract(DataExtractor Data);
  56
  57 private:
  58   void clear();
  59 };
  60
  61 }
  62
  63 #endif