0261b9498b
This moves the sections from SymbolFileDWARF to DWARFContext, where it was trivial to do so. A couple of sections are still left in SymbolFileDWARF. These will be handled by separate patches. llvm-svn: 361127
148 lines
5.0 KiB
C++
148 lines
5.0 KiB
C++
//===-- SymbolFileDWARFDwo.cpp ----------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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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 "DWARFUnit.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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DWARFUnit *dwarf_cu)
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: SymbolFileDWARF(objfile.get(), objfile->GetSectionList(
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/*update_module_section_list*/ false)),
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m_obj_file_sp(objfile), m_base_dwarf_cu(dwarf_cu) {
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SetID(((lldb::user_id_t)dwarf_cu->GetID()) << 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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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(DWARFUnit *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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DWARFUnit *SymbolFileDWARFDwo::GetCompileUnit() {
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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()->GetUnitAtIndex(0);
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else
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return nullptr;
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}
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DWARFUnit *
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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, 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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DWARFUnit *SymbolFileDWARFDwo::GetBaseCompileUnit() {
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return m_base_dwarf_cu;
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}
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const DWARFDataExtractor &SymbolFileDWARFDwo::get_debug_addr_data() {
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// For single file split dwarf case (when we have .dwo sections in a .o),
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// we do not want to use the .debug_addr section from .o file,
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// but want to get one from the final executable.
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// For regular split debug case, .dwo file does not contain the
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// .debug_addr, so we would always fall back to such lookup anyways.
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llvm::call_once(m_data_debug_addr.m_flag, [this] {
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SymbolFileDWARF::LoadSectionData(eSectionTypeDWARFDebugAddr,
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std::ref(m_data_debug_addr.m_data));
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});
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return m_data_debug_addr.m_data;
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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(die_ref.cu_offset == m_base_dwarf_cu->GetOffset() ||
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die_ref.cu_offset == DW_INVALID_OFFSET);
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return DebugInfo()->GetDIEForDIEOffset(die_ref.section, die_ref.die_offset);
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}
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