contrib/llvm/lib/DebugInfo/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_DEBUGINFO_DWARFDEBUGABBREV_H
  11 #define LLVM_DEBUGINFO_DWARFDEBUGABBREV_H
  12
  13 #include "DWARFAbbreviationDeclaration.h"
  14 #include <list>
  15 #include <map>
  16 #include <vector>
  17
  18 namespace llvm {
  19
  20 typedef std::vector<DWARFAbbreviationDeclaration>
  21   DWARFAbbreviationDeclarationColl;
  22 typedef DWARFAbbreviationDeclarationColl::iterator
  23   DWARFAbbreviationDeclarationCollIter;
  24 typedef DWARFAbbreviationDeclarationColl::const_iterator
  25   DWARFAbbreviationDeclarationCollConstIter;
  26
  27 class DWARFAbbreviationDeclarationSet {
  28   uint32_t Offset;
  29   uint32_t IdxOffset;
  30   std::vector<DWARFAbbreviationDeclaration> Decls;
  31   public:
  32   DWARFAbbreviationDeclarationSet()
  33     : Offset(0), IdxOffset(0) {}
  34
  35   DWARFAbbreviationDeclarationSet(uint32_t offset, uint32_t idxOffset)
  36     : Offset(offset), IdxOffset(idxOffset) {}
  37
  38   void clear() {
  39     IdxOffset = 0;
  40     Decls.clear();
  41   }
  42   uint32_t getOffset() const { return Offset; }
  43   void dump(raw_ostream &OS) const;
  44   bool extract(DataExtractor data, uint32_t* offset_ptr);
  45
  46   const DWARFAbbreviationDeclaration *
  47     getAbbreviationDeclaration(uint32_t abbrCode) const;
  48 };
  49
  50 class DWARFDebugAbbrev {
  51 public:
  52   typedef std::map<uint64_t, DWARFAbbreviationDeclarationSet>
  53     DWARFAbbreviationDeclarationCollMap;
  54   typedef DWARFAbbreviationDeclarationCollMap::iterator
  55     DWARFAbbreviationDeclarationCollMapIter;
  56   typedef DWARFAbbreviationDeclarationCollMap::const_iterator
  57     DWARFAbbreviationDeclarationCollMapConstIter;
  58
  59 private:
  60   DWARFAbbreviationDeclarationCollMap AbbrevCollMap;
  61   mutable DWARFAbbreviationDeclarationCollMapConstIter PrevAbbrOffsetPos;
  62
  63 public:
  64   DWARFDebugAbbrev();
  65   const DWARFAbbreviationDeclarationSet *
  66     getAbbreviationDeclarationSet(uint64_t cu_abbr_offset) const;
  67   void dump(raw_ostream &OS) const;
  68   void parse(DataExtractor data);
  69 };
  70
  71 }
  72
  73 #endif