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_LIB_DEBUGINFO_DWARFDEBUGABBREV_H
11 #define LLVM_LIB_DEBUGINFO_DWARFDEBUGABBREV_H
12 
13 #include "llvm/DebugInfo/DWARF/DWARFAbbreviationDeclaration.h"
14 #include <list>
15 #include <map>
16 #include <vector>
17 
18 namespace llvm {
19 
20 class DWARFAbbreviationDeclarationSet {
21   uint32_t Offset;
22   /// Code of the first abbreviation, if all abbreviations in the set have
23   /// consecutive codes. UINT32_MAX otherwise.
24   uint32_t FirstAbbrCode;
25   std::vector<DWARFAbbreviationDeclaration> Decls;
26 
27 public:
28   DWARFAbbreviationDeclarationSet();
29 
getOffset()30   uint32_t getOffset() const { return Offset; }
31   void dump(raw_ostream &OS) const;
32   bool extract(DataExtractor Data, uint32_t *OffsetPtr);
33 
34   const DWARFAbbreviationDeclaration *
35   getAbbreviationDeclaration(uint32_t AbbrCode) const;
36 
37 private:
38   void clear();
39 };
40 
41 class DWARFDebugAbbrev {
42   typedef std::map<uint64_t, DWARFAbbreviationDeclarationSet>
43     DWARFAbbreviationDeclarationSetMap;
44 
45   DWARFAbbreviationDeclarationSetMap AbbrDeclSets;
46   mutable DWARFAbbreviationDeclarationSetMap::const_iterator PrevAbbrOffsetPos;
47 
48 public:
49   DWARFDebugAbbrev();
50 
51   const DWARFAbbreviationDeclarationSet *
52   getAbbreviationDeclarationSet(uint64_t CUAbbrOffset) const;
53 
54   void dump(raw_ostream &OS) const;
55   void extract(DataExtractor Data);
56 
57 private:
58   void clear();
59 };
60 
61 }
62 
63 #endif
64