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 "DWARFAbbreviationDeclaration.h"
  19 #include "DWARFDefines.h"
  20
  21 typedef std::vector<DWARFAbbreviationDeclaration>
  22     DWARFAbbreviationDeclarationColl;
  23 typedef DWARFAbbreviationDeclarationColl::iterator
  24     DWARFAbbreviationDeclarationCollIter;
  25 typedef DWARFAbbreviationDeclarationColl::const_iterator
  26     DWARFAbbreviationDeclarationCollConstIter;
  27
  28 class DWARFAbbreviationDeclarationSet {
  29 public:
  30   DWARFAbbreviationDeclarationSet()
  31       : m_offset(DW_INVALID_OFFSET), m_idx_offset(0), m_decls() {}
  32
  33   DWARFAbbreviationDeclarationSet(dw_offset_t offset, uint32_t idx_offset)
  34       : m_offset(offset), m_idx_offset(idx_offset), m_decls() {}
  35
  36   void Clear();
  37   dw_offset_t GetOffset() const { return m_offset; }
  38   void Dump(lldb_private::Stream *s) const;
  39   bool Extract(const lldb_private::DWARFDataExtractor &data,
  40                lldb::offset_t *offset_ptr);
  41   // void Encode(BinaryStreamBuf& debug_abbrev_buf) const;
  42   dw_uleb128_t
  43   AppendAbbrevDeclSequential(const DWARFAbbreviationDeclaration &abbrevDecl);
  44   void GetUnsupportedForms(std::set<dw_form_t> &invalid_forms) const;
  45
  46   const DWARFAbbreviationDeclaration *
  47   GetAbbreviationDeclaration(dw_uleb128_t abbrCode) const;
  48
  49 private:
  50   dw_offset_t m_offset;
  51   uint32_t m_idx_offset;
  52   std::vector<DWARFAbbreviationDeclaration> m_decls;
  53 };
  54
  55 typedef std::map<dw_offset_t, DWARFAbbreviationDeclarationSet>
  56     DWARFAbbreviationDeclarationCollMap;
  57 typedef DWARFAbbreviationDeclarationCollMap::iterator
  58     DWARFAbbreviationDeclarationCollMapIter;
  59 typedef DWARFAbbreviationDeclarationCollMap::const_iterator
  60     DWARFAbbreviationDeclarationCollMapConstIter;
  61
  62 class DWARFDebugAbbrev {
  63 public:
  64   DWARFDebugAbbrev();
  65   const DWARFAbbreviationDeclarationSet *
  66   GetAbbreviationDeclarationSet(dw_offset_t cu_abbr_offset) const;
  67   void Dump(lldb_private::Stream *s) const;
  68   void Parse(const lldb_private::DWARFDataExtractor &data);
  69   void GetUnsupportedForms(std::set<dw_form_t> &invalid_forms) const;
  70
  71 protected:
  72   DWARFAbbreviationDeclarationCollMap m_abbrevCollMap;
  73   mutable DWARFAbbreviationDeclarationCollMapConstIter m_prev_abbr_offset_pos;
  74 };
  75
  76 #endif // SymbolFileDWARF_DWARFDebugAbbrev_h_