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      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   uint64_t Offset;
     29   uint32_t IdxOffset;
     30   std::vector<DWARFAbbreviationDeclaration> Decls;
     31   public:
     32   DWARFAbbreviationDeclarationSet()
     33     : Offset(0), IdxOffset(0) {}
     34 
     35   DWARFAbbreviationDeclarationSet(uint64_t offset, uint32_t idxOffset)
     36     : Offset(offset), IdxOffset(idxOffset) {}
     37 
     38   void clear() {
     39     IdxOffset = 0;
     40     Decls.clear();
     41   }
     42   uint64_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
     74