1 files changed, 74 insertions, 0 deletions
diff --git a/source/Plugins/SymbolFile/DWARF/DWARFContext.h b/source/Plugins/SymbolFile/DWARF/DWARFContext.h
new file mode 100644
index 000000000000..add042384039
--- /dev/null
+++ b/source/Plugins/SymbolFile/DWARF/DWARFContext.h
@@ -0,0 +1,74 @@
+//===-- DWARFContext.h ------------------------------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLDB_PLUGINS_SYMBOLFILE_DWARF_DWARFCONTEXT_H
+#define LLDB_PLUGINS_SYMBOLFILE_DWARF_DWARFCONTEXT_H
+
+#include "DWARFDataExtractor.h"
+#include "lldb/Core/Section.h"
+#include "llvm/ADT/Optional.h"
+#include "llvm/DebugInfo/DWARF/DWARFContext.h"
+#include "llvm/Support/Threading.h"
+#include <memory>
+
+namespace lldb_private {
+class DWARFContext {
+private:
+  SectionList *m_main_section_list;
+  SectionList *m_dwo_section_list;
+  mutable std::unique_ptr<llvm::DWARFContext> m_llvm_context;
+
+  struct SectionData {
+    llvm::once_flag flag;
+    DWARFDataExtractor data;
+  };
+
+  SectionData m_data_debug_abbrev;
+  SectionData m_data_debug_addr;
+  SectionData m_data_debug_aranges;
+  SectionData m_data_debug_info;
+  SectionData m_data_debug_line;
+  SectionData m_data_debug_line_str;
+  SectionData m_data_debug_macro;
+  SectionData m_data_debug_ranges;
+  SectionData m_data_debug_rnglists;
+  SectionData m_data_debug_str;
+  SectionData m_data_debug_str_offsets;
+  SectionData m_data_debug_types;
+
+  bool isDwo() { return m_dwo_section_list != nullptr; }
+
+  const DWARFDataExtractor &
+  LoadOrGetSection(lldb::SectionType main_section_type,
+                   llvm::Optional<lldb::SectionType> dwo_section_type,
+                   SectionData &data);
+
+public:
+  explicit DWARFContext(SectionList *main_section_list,
+                        SectionList *dwo_section_list)
+      : m_main_section_list(main_section_list),
+        m_dwo_section_list(dwo_section_list) {}
+
+  const DWARFDataExtractor &getOrLoadAbbrevData();
+  const DWARFDataExtractor &getOrLoadAddrData();
+  const DWARFDataExtractor &getOrLoadArangesData();
+  const DWARFDataExtractor &getOrLoadDebugInfoData();
+  const DWARFDataExtractor &getOrLoadLineData();
+  const DWARFDataExtractor &getOrLoadLineStrData();
+  const DWARFDataExtractor &getOrLoadMacroData();
+  const DWARFDataExtractor &getOrLoadRangesData();
+  const DWARFDataExtractor &getOrLoadRngListsData();
+  const DWARFDataExtractor &getOrLoadStrData();
+  const DWARFDataExtractor &getOrLoadStrOffsetsData();
+  const DWARFDataExtractor &getOrLoadDebugTypesData();
+
+  llvm::DWARFContext &GetAsLLVM();
+};
+} // namespace lldb_private
+
+#endif