DWARFDebugAbbrev.h revision 258054 
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
21typedef std::vector<DWARFAbbreviationDeclaration>               DWARFAbbreviationDeclarationColl;
22typedef DWARFAbbreviationDeclarationColl::iterator              DWARFAbbreviationDeclarationCollIter;
23typedef DWARFAbbreviationDeclarationColl::const_iterator        DWARFAbbreviationDeclarationCollConstIter;
24
25
26class DWARFAbbreviationDeclarationSet
27{
28public:
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::DWARFDataExtractor& 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;
51private:
52    dw_offset_t m_offset;
53    uint32_t m_idx_offset;
54    std::vector<DWARFAbbreviationDeclaration> m_decls;
55};
56
57typedef std::map<dw_offset_t, DWARFAbbreviationDeclarationSet> DWARFAbbreviationDeclarationCollMap;
58typedef DWARFAbbreviationDeclarationCollMap::iterator DWARFAbbreviationDeclarationCollMapIter;
59typedef DWARFAbbreviationDeclarationCollMap::const_iterator DWARFAbbreviationDeclarationCollMapConstIter;
60
61
62class DWARFDebugAbbrev
63{
64public:
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::DWARFDataExtractor& data);
69protected:
70    DWARFAbbreviationDeclarationCollMap m_abbrevCollMap;
71    mutable DWARFAbbreviationDeclarationCollMapConstIter m_prev_abbr_offset_pos;
72};
73
74#endif  // SymbolFileDWARF_DWARFDebugAbbrev_h_
75