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:
DWARFAbbreviationDeclarationSet()32   DWARFAbbreviationDeclarationSet()
33     : Offset(0), IdxOffset(0) {}
34 
DWARFAbbreviationDeclarationSet(uint64_t offset,uint32_t idxOffset)35   DWARFAbbreviationDeclarationSet(uint64_t offset, uint32_t idxOffset)
36     : Offset(offset), IdxOffset(idxOffset) {}
37 
clear()38   void clear() {
39     IdxOffset = 0;
40     Decls.clear();
41   }
getOffset()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