lldb/source/Plugins/SymbolFile/DWARF/DWARFContext.h

   1 //===-- DWARFContext.h ------------------------------------------*- C++ -*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #ifndef LLDB_SOURCE_PLUGINS_SYMBOLFILE_DWARF_DWARFCONTEXT_H
  10 #define LLDB_SOURCE_PLUGINS_SYMBOLFILE_DWARF_DWARFCONTEXT_H
  11
  12 #include "DWARFDataExtractor.h"
  13 #include "lldb/Core/Section.h"
  14 #include "llvm/DebugInfo/DWARF/DWARFContext.h"
  15 #include "llvm/Support/Threading.h"
  16 #include <memory>
  17 #include <optional>
  18
  19 namespace lldb_private::plugin {
  20 namespace dwarf {
  21 class DWARFContext {
  22 private:
  23   SectionList *m_main_section_list;
  24   SectionList *m_dwo_section_list;
  25   mutable std::unique_ptr<llvm::DWARFContext> m_llvm_context;
  26
  27   struct SectionData {
  28     llvm::once_flag flag;
  29     DWARFDataExtractor data;
  30   };
  31
  32   SectionData m_data_debug_abbrev;
  33   SectionData m_data_debug_addr;
  34   SectionData m_data_debug_aranges;
  35   SectionData m_data_debug_cu_index;
  36   SectionData m_data_debug_info;
  37   SectionData m_data_debug_line;
  38   SectionData m_data_debug_line_str;
  39   SectionData m_data_debug_loc;
  40   SectionData m_data_debug_loclists;
  41   SectionData m_data_debug_macro;
  42   SectionData m_data_debug_ranges;
  43   SectionData m_data_debug_rnglists;
  44   SectionData m_data_debug_str;
  45   SectionData m_data_debug_str_offsets;
  46   SectionData m_data_debug_tu_index;
  47   SectionData m_data_debug_types;
  48
  49   const DWARFDataExtractor &
  50   LoadOrGetSection(std::optional<lldb::SectionType> main_section_type,
  51                    std::optional<lldb::SectionType> dwo_section_type,
  52                    SectionData &data);
  53
  54   const DWARFDataExtractor &getOrLoadCuIndexData();
  55   const DWARFDataExtractor &getOrLoadTuIndexData();
  56
  57 public:
  58   explicit DWARFContext(SectionList *main_section_list,
  59                         SectionList *dwo_section_list)
  60       : m_main_section_list(main_section_list),
  61         m_dwo_section_list(dwo_section_list) {}
  62
  63   const DWARFDataExtractor &getOrLoadAbbrevData();
  64   const DWARFDataExtractor &getOrLoadAddrData();
  65   const DWARFDataExtractor &getOrLoadArangesData();
  66   const DWARFDataExtractor &getOrLoadDebugInfoData();
  67   const DWARFDataExtractor &getOrLoadLineData();
  68   const DWARFDataExtractor &getOrLoadLineStrData();
  69   const DWARFDataExtractor &getOrLoadLocData();
  70   const DWARFDataExtractor &getOrLoadLocListsData();
  71   const DWARFDataExtractor &getOrLoadMacroData();
  72   const DWARFDataExtractor &getOrLoadRangesData();
  73   const DWARFDataExtractor &getOrLoadRngListsData();
  74   const DWARFDataExtractor &getOrLoadStrData();
  75   const DWARFDataExtractor &getOrLoadStrOffsetsData();
  76   const DWARFDataExtractor &getOrLoadDebugTypesData();
  77
  78   bool isDwo() { return m_dwo_section_list != nullptr; }
  79
  80   llvm::DWARFContext &GetAsLLVM();
  81 };
  82 } // namespace dwarf
  83 } // namespace lldb_private::plugin
  84
  85 #endif