1 files changed, 131 insertions, 0 deletions

diff --git a/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDwo.cpp b/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDwo.cpp
new file mode 100644
index 0000000000000..326c397c83d56
--- /dev/null
+++ b/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDwo.cpp
@@ -0,0 +1,131 @@
+//===-- SymbolFileDWARFDwo.cpp ----------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "SymbolFileDWARFDwo.h"
+
+#include "lldb/Core/Section.h"
+#include "lldb/Expression/DWARFExpression.h"
+#include "lldb/Symbol/ObjectFile.h"
+
+#include "DWARFCompileUnit.h"
+#include "DWARFDebugInfo.h"
+
+using namespace lldb;
+using namespace lldb_private;
+
+SymbolFileDWARFDwo::SymbolFileDWARFDwo(ObjectFileSP objfile, DWARFCompileUnit* dwarf_cu) :
+    SymbolFileDWARF(objfile.get()),
+    m_obj_file_sp(objfile),
+    m_base_dwarf_cu(dwarf_cu)
+{
+    SetID(((lldb::user_id_t)dwarf_cu->GetOffset())<<32);
+}
+
+void
+SymbolFileDWARFDwo::LoadSectionData (lldb::SectionType sect_type, DWARFDataExtractor& data)
+{
+    const SectionList* section_list = m_obj_file->GetSectionList(false /* update_module_section_list */);
+    if (section_list)
+    {
+        SectionSP section_sp (section_list->FindSectionByType(sect_type, true));
+        if (section_sp)
+        {
+            // See if we memory mapped the DWARF segment?
+            if (m_dwarf_data.GetByteSize())
+            {
+                data.SetData(m_dwarf_data, section_sp->GetOffset(), section_sp->GetFileSize());
+                return;
+            }
+
+            if (m_obj_file->ReadSectionData(section_sp.get(), data) != 0)
+                return;
+
+            data.Clear();
+        }
+    }
+
+    SymbolFileDWARF::LoadSectionData(sect_type, data);
+}
+
+lldb::CompUnitSP
+SymbolFileDWARFDwo::ParseCompileUnit(DWARFCompileUnit* dwarf_cu, uint32_t cu_idx)
+{
+    assert(GetCompileUnit() == dwarf_cu && "SymbolFileDWARFDwo::ParseCompileUnit called with incompatible compile unit");
+    return GetBaseSymbolFile()->ParseCompileUnit(m_base_dwarf_cu, UINT32_MAX);
+}
+
+DWARFCompileUnit*
+SymbolFileDWARFDwo::GetCompileUnit()
+{
+    // Only dwo files with 1 compile unit is supported
+    if (GetNumCompileUnits() == 1)
+        return DebugInfo()->GetCompileUnitAtIndex(0);
+    else
+        return nullptr;
+}
+
+DWARFCompileUnit*
+SymbolFileDWARFDwo::GetDWARFCompileUnit(lldb_private::CompileUnit *comp_unit)
+{
+    return GetCompileUnit();
+}
+
+SymbolFileDWARF::DIEToTypePtr&
+SymbolFileDWARFDwo::GetDIEToType()
+{
+    return GetBaseSymbolFile()->GetDIEToType();
+}
+
+SymbolFileDWARF::DIEToVariableSP&
+SymbolFileDWARFDwo::GetDIEToVariable()
+{
+    return GetBaseSymbolFile()->GetDIEToVariable();
+}
+
+SymbolFileDWARF::DIEToClangType&
+SymbolFileDWARFDwo::GetForwardDeclDieToClangType()
+{
+    return GetBaseSymbolFile()->GetForwardDeclDieToClangType();
+}
+
+SymbolFileDWARF::ClangTypeToDIE&
+SymbolFileDWARFDwo::GetForwardDeclClangTypeToDie()
+{
+    return GetBaseSymbolFile()->GetForwardDeclClangTypeToDie();
+}
+
+UniqueDWARFASTTypeMap&
+SymbolFileDWARFDwo::GetUniqueDWARFASTTypeMap()
+{
+    return GetBaseSymbolFile()->GetUniqueDWARFASTTypeMap();
+}
+
+lldb::TypeSP
+SymbolFileDWARFDwo::FindDefinitionTypeForDWARFDeclContext (const DWARFDeclContext &die_decl_ctx)
+{
+    return GetBaseSymbolFile()->FindDefinitionTypeForDWARFDeclContext(die_decl_ctx);
+}
+
+SymbolFileDWARF*
+SymbolFileDWARFDwo::GetBaseSymbolFile()
+{
+    return m_base_dwarf_cu->GetSymbolFileDWARF();
+}
+
+DWARFExpression::LocationListFormat
+SymbolFileDWARFDwo::GetLocationListFormat() const
+{
+    return DWARFExpression::SplitDwarfLocationList;
+}
+
+TypeSystem*
+SymbolFileDWARFDwo::GetTypeSystemForLanguage(LanguageType language)
+{
+    return GetBaseSymbolFile()->GetTypeSystemForLanguage(language);
+}