contrib/llvm/tools/lldb/source/Plugins/SymbolFile/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 SymbolFileDWARF_DWARFDebugAbbrev_h_
  11 #define SymbolFileDWARF_DWARFDebugAbbrev_h_
  12
  13 #include <list>
  14 #include <map>
  15
  16 #include "lldb/lldb-private.h"
  17
  18 #include "DWARFDefines.h"
  19 #include "DWARFAbbreviationDeclaration.h"
  20
  21 typedef std::vector<DWARFAbbreviationDeclaration>               DWARFAbbreviationDeclarationColl;
  22 typedef DWARFAbbreviationDeclarationColl::iterator              DWARFAbbreviationDeclarationCollIter;
  23 typedef DWARFAbbreviationDeclarationColl::const_iterator        DWARFAbbreviationDeclarationCollConstIter;
  24
  25
  26 class DWARFAbbreviationDeclarationSet
  27 {
  28 public:
  29     DWARFAbbreviationDeclarationSet() :
  30         m_offset(DW_INVALID_OFFSET),
  31         m_idx_offset(0),
  32         m_decls()
  33         {
  34         }
  35
  36     DWARFAbbreviationDeclarationSet(dw_offset_t offset, uint32_t idx_offset) :
  37         m_offset(offset),
  38         m_idx_offset(idx_offset),
  39         m_decls()
  40         {
  41         }
  42
  43     void Clear();
  44     dw_offset_t GetOffset() const { return m_offset; }
  45     void Dump(lldb_private::Stream *s) const;
  46     bool Extract(const lldb_private::DataExtractor& data, lldb::offset_t *offset_ptr);
  47     //void Encode(BinaryStreamBuf& debug_abbrev_buf) const;
  48     dw_uleb128_t AppendAbbrevDeclSequential(const DWARFAbbreviationDeclaration& abbrevDecl);
  49
  50     const DWARFAbbreviationDeclaration* GetAbbreviationDeclaration(dw_uleb128_t abbrCode) const;
  51 private:
  52     dw_offset_t m_offset;
  53     uint32_t m_idx_offset;
  54     std::vector<DWARFAbbreviationDeclaration> m_decls;
  55 };
  56
  57 typedef std::map<dw_offset_t, DWARFAbbreviationDeclarationSet> DWARFAbbreviationDeclarationCollMap;
  58 typedef DWARFAbbreviationDeclarationCollMap::iterator DWARFAbbreviationDeclarationCollMapIter;
  59 typedef DWARFAbbreviationDeclarationCollMap::const_iterator DWARFAbbreviationDeclarationCollMapConstIter;
  60
  61
  62 class DWARFDebugAbbrev
  63 {
  64 public:
  65     DWARFDebugAbbrev();
  66     const DWARFAbbreviationDeclarationSet*  GetAbbreviationDeclarationSet(dw_offset_t cu_abbr_offset) const;
  67     void Dump(lldb_private::Stream *s) const;
  68     void Parse(const lldb_private::DataExtractor& data);
  69 protected:
  70     DWARFAbbreviationDeclarationCollMap m_abbrevCollMap;
  71     mutable DWARFAbbreviationDeclarationCollMapConstIter m_prev_abbr_offset_pos;
  72 };
  73
  74 #endif  // SymbolFileDWARF_DWARFDebugAbbrev_h_