148 lines
4.8 KiB
C++
148 lines
4.8 KiB
C++
//===-- SymbolFileDWARFDwo.cpp ----------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "SymbolFileDWARFDwo.h"
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#include "lldb/Core/Section.h"
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#include "lldb/Expression/DWARFExpression.h"
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#include "lldb/Symbol/ObjectFile.h"
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#include "lldb/Utility/LLDBAssert.h"
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#include "DWARFCompileUnit.h"
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#include "DWARFDebugInfo.h"
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using namespace lldb;
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using namespace lldb_private;
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SymbolFileDWARFDwo::SymbolFileDWARFDwo(ObjectFileSP objfile,
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DWARFCompileUnit *dwarf_cu)
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: SymbolFileDWARF(objfile.get()), m_obj_file_sp(objfile),
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m_base_dwarf_cu(dwarf_cu) {
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SetID(((lldb::user_id_t)dwarf_cu->GetOffset()) << 32);
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}
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void SymbolFileDWARFDwo::LoadSectionData(lldb::SectionType sect_type,
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DWARFDataExtractor &data) {
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const SectionList *section_list =
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m_obj_file->GetSectionList(false /* update_module_section_list */);
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if (section_list) {
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SectionSP section_sp(section_list->FindSectionByType(sect_type, true));
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if (section_sp) {
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// See if we memory mapped the DWARF segment?
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if (m_dwarf_data.GetByteSize()) {
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data.SetData(m_dwarf_data, section_sp->GetOffset(),
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section_sp->GetFileSize());
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return;
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}
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if (m_obj_file->ReadSectionData(section_sp.get(), data) != 0)
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return;
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data.Clear();
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}
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}
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SymbolFileDWARF::LoadSectionData(sect_type, data);
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}
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lldb::CompUnitSP
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SymbolFileDWARFDwo::ParseCompileUnit(DWARFCompileUnit *dwarf_cu,
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uint32_t cu_idx) {
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assert(GetCompileUnit() == dwarf_cu && "SymbolFileDWARFDwo::ParseCompileUnit "
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"called with incompatible compile "
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"unit");
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return GetBaseSymbolFile()->ParseCompileUnit(m_base_dwarf_cu, UINT32_MAX);
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}
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DWARFCompileUnit *SymbolFileDWARFDwo::GetCompileUnit() {
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// A clang module is found via a skeleton CU, but is not a proper DWO.
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// Clang modules have a .debug_info section instead of the *_dwo variant.
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if (auto *section_list = m_obj_file->GetSectionList(false))
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if (auto section_sp =
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section_list->FindSectionByType(eSectionTypeDWARFDebugInfo, true))
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if (!section_sp->GetName().GetStringRef().endswith("dwo"))
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return nullptr;
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// Only dwo files with 1 compile unit is supported
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if (GetNumCompileUnits() == 1)
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return DebugInfo()->GetCompileUnitAtIndex(0);
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else
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return nullptr;
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}
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DWARFCompileUnit *
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SymbolFileDWARFDwo::GetDWARFCompileUnit(lldb_private::CompileUnit *comp_unit) {
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return GetCompileUnit();
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}
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SymbolFileDWARF::DIEToTypePtr &SymbolFileDWARFDwo::GetDIEToType() {
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return GetBaseSymbolFile()->GetDIEToType();
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}
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SymbolFileDWARF::DIEToVariableSP &SymbolFileDWARFDwo::GetDIEToVariable() {
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return GetBaseSymbolFile()->GetDIEToVariable();
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}
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SymbolFileDWARF::DIEToClangType &
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SymbolFileDWARFDwo::GetForwardDeclDieToClangType() {
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return GetBaseSymbolFile()->GetForwardDeclDieToClangType();
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}
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SymbolFileDWARF::ClangTypeToDIE &
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SymbolFileDWARFDwo::GetForwardDeclClangTypeToDie() {
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return GetBaseSymbolFile()->GetForwardDeclClangTypeToDie();
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}
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size_t SymbolFileDWARFDwo::GetObjCMethodDIEOffsets(
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lldb_private::ConstString class_name, DIEArray &method_die_offsets) {
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return GetBaseSymbolFile()->GetObjCMethodDIEOffsets(
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class_name, method_die_offsets);
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}
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UniqueDWARFASTTypeMap &SymbolFileDWARFDwo::GetUniqueDWARFASTTypeMap() {
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return GetBaseSymbolFile()->GetUniqueDWARFASTTypeMap();
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}
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lldb::TypeSP SymbolFileDWARFDwo::FindDefinitionTypeForDWARFDeclContext(
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const DWARFDeclContext &die_decl_ctx) {
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return GetBaseSymbolFile()->FindDefinitionTypeForDWARFDeclContext(
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die_decl_ctx);
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}
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lldb::TypeSP SymbolFileDWARFDwo::FindCompleteObjCDefinitionTypeForDIE(
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const DWARFDIE &die, const lldb_private::ConstString &type_name,
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bool must_be_implementation) {
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return GetBaseSymbolFile()->FindCompleteObjCDefinitionTypeForDIE(
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die, type_name, must_be_implementation);
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}
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DWARFCompileUnit *SymbolFileDWARFDwo::GetBaseCompileUnit() {
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return m_base_dwarf_cu;
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}
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SymbolFileDWARF *SymbolFileDWARFDwo::GetBaseSymbolFile() {
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return m_base_dwarf_cu->GetSymbolFileDWARF();
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}
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DWARFExpression::LocationListFormat
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SymbolFileDWARFDwo::GetLocationListFormat() const {
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return DWARFExpression::SplitDwarfLocationList;
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}
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TypeSystem *
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SymbolFileDWARFDwo::GetTypeSystemForLanguage(LanguageType language) {
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return GetBaseSymbolFile()->GetTypeSystemForLanguage(language);
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}
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DWARFDIE
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SymbolFileDWARFDwo::GetDIE(const DIERef &die_ref) {
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lldbassert(m_base_dwarf_cu->GetOffset() == die_ref.cu_offset);
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return DebugInfo()->GetDIEForDIEOffset(die_ref.die_offset);
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}
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