DebugNamesDWARFIndex.h revision 336985 
1//===-- DebugNamesDWARFIndex.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 LLDB_DEBUGNAMESDWARFINDEX_H
11#define LLDB_DEBUGNAMESDWARFINDEX_H
12
13#include "Plugins/SymbolFile/DWARF/DWARFIndex.h"
14#include "Plugins/SymbolFile/DWARF/LogChannelDWARF.h"
15#include "Plugins/SymbolFile/DWARF/ManualDWARFIndex.h"
16#include "lldb/Utility/ConstString.h"
17#include "llvm/DebugInfo/DWARF/DWARFAcceleratorTable.h"
18
19namespace lldb_private {
20class DebugNamesDWARFIndex : public DWARFIndex {
21public:
22  static llvm::Expected<std::unique_ptr<DebugNamesDWARFIndex>>
23  Create(Module &module, DWARFDataExtractor debug_names,
24         DWARFDataExtractor debug_str, DWARFDebugInfo *debug_info);
25
26  void Preload() override { m_fallback.Preload(); }
27
28  void GetGlobalVariables(ConstString basename, DIEArray &offsets) override;
29  void GetGlobalVariables(const RegularExpression &regex,
30                          DIEArray &offsets) override;
31  void GetGlobalVariables(const DWARFUnit &cu, DIEArray &offsets) override;
32  void GetObjCMethods(ConstString class_name, DIEArray &offsets) override {}
33  void GetCompleteObjCClass(ConstString class_name, bool must_be_implementation,
34                            DIEArray &offsets) override;
35  void GetTypes(ConstString name, DIEArray &offsets) override;
36  void GetTypes(const DWARFDeclContext &context, DIEArray &offsets) override;
37  void GetNamespaces(ConstString name, DIEArray &offsets) override;
38  void GetFunctions(ConstString name, DWARFDebugInfo &info,
39                    const CompilerDeclContext &parent_decl_ctx,
40                    uint32_t name_type_mask,
41                    std::vector<DWARFDIE> &dies) override;
42  void GetFunctions(const RegularExpression &regex,
43                    DIEArray &offsets) override;
44
45  void ReportInvalidDIEOffset(dw_offset_t offset,
46                              llvm::StringRef name) override {}
47  void Dump(Stream &s) override;
48
49private:
50  DebugNamesDWARFIndex(Module &module,
51                       std::unique_ptr<llvm::DWARFDebugNames> debug_names_up,
52                       DWARFDataExtractor debug_names_data,
53                       DWARFDataExtractor debug_str_data,
54                       DWARFDebugInfo &debug_info)
55      : DWARFIndex(module), m_debug_info(debug_info),
56        m_debug_names_data(debug_names_data), m_debug_str_data(debug_str_data),
57        m_debug_names_up(std::move(debug_names_up)),
58        m_fallback(module, &debug_info, GetUnits(*m_debug_names_up)) {}
59
60  DWARFDebugInfo &m_debug_info;
61
62  // LLVM DWARFDebugNames will hold a non-owning reference to this data, so keep
63  // track of the ownership here.
64  DWARFDataExtractor m_debug_names_data;
65  DWARFDataExtractor m_debug_str_data;
66
67  using DebugNames = llvm::DWARFDebugNames;
68  std::unique_ptr<DebugNames> m_debug_names_up;
69  ManualDWARFIndex m_fallback;
70
71  DIERef ToDIERef(const DebugNames::Entry &entry);
72  void Append(const DebugNames::Entry &entry, DIEArray &offsets);
73
74  static void MaybeLogLookupError(llvm::Error error,
75                                  const DebugNames::NameIndex &ni,
76                                  llvm::StringRef name);
77
78  static llvm::DenseSet<dw_offset_t> GetUnits(const DebugNames &debug_names);
79};
80
81} // namespace lldb_private
82
83#endif // LLDB_DEBUGNAMESDWARFINDEX_H
84