Differential D131437 Diff 455720 lldb/source/Plugins/SymbolFile/DWARF/DWARFUnit.h

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

Show First 20 Lines • Show All 45 Lines • ▼ Show 20 Lines	class DWARFUnitHeader {
const llvm::DWARFUnitIndex::Entry *m_index_entry = nullptr;		const llvm::DWARFUnitIndex::Entry *m_index_entry = nullptr;

uint8_t m_unit_type = 0;		uint8_t m_unit_type = 0;
uint8_t m_addr_size = 0;		uint8_t m_addr_size = 0;

uint64_t m_type_hash = 0;		uint64_t m_type_hash = 0;
uint32_t m_type_offset = 0;		uint32_t m_type_offset = 0;

uint64_t m_dwo_id = 0;		llvm::Optional<uint64_t> m_dwo_id;

DWARFUnitHeader() = default;		DWARFUnitHeader() = default;

public:		public:
dw_offset_t GetOffset() const { return m_offset; }		dw_offset_t GetOffset() const { return m_offset; }
uint16_t GetVersion() const { return m_version; }		uint16_t GetVersion() const { return m_version; }
uint16_t GetAddressByteSize() const { return m_addr_size; }		uint16_t GetAddressByteSize() const { return m_addr_size; }
dw_offset_t GetLength() const { return m_length; }		dw_offset_t GetLength() const { return m_length; }
dw_offset_t GetAbbrOffset() const { return m_abbr_offset; }		dw_offset_t GetAbbrOffset() const { return m_abbr_offset; }
uint8_t GetUnitType() const { return m_unit_type; }		uint8_t GetUnitType() const { return m_unit_type; }
const llvm::DWARFUnitIndex::Entry *GetIndexEntry() const {		const llvm::DWARFUnitIndex::Entry *GetIndexEntry() const {
return m_index_entry;		return m_index_entry;
}		}
uint64_t GetTypeHash() const { return m_type_hash; }		uint64_t GetTypeHash() const { return m_type_hash; }
dw_offset_t GetTypeOffset() const { return m_type_offset; }		dw_offset_t GetTypeOffset() const { return m_type_offset; }
uint64_t GetDWOId() const { return m_dwo_id; }		llvm::Optional<uint64_t> GetDWOId() const { return m_dwo_id; }
bool IsTypeUnit() const {		bool IsTypeUnit() const {
return m_unit_type == llvm::dwarf::DW_UT_type \|\|		return m_unit_type == llvm::dwarf::DW_UT_type \|\|
m_unit_type == llvm::dwarf::DW_UT_split_type;		m_unit_type == llvm::dwarf::DW_UT_split_type;
}		}
uint32_t GetNextUnitOffset() const { return m_offset + m_length + 4; }		uint32_t GetNextUnitOffset() const { return m_offset + m_length + 4; }

static llvm::Expected<DWARFUnitHeader>		static llvm::Expected<DWARFUnitHeader>
extract(const lldb_private::DWARFDataExtractor &data, DIERef::Section section,		extract(const lldb_private::DWARFDataExtractor &data, DIERef::Section section,
lldb_private::DWARFContext &dwarf_context,		lldb_private::DWARFContext &dwarf_context,
lldb::offset_t *offset_ptr);		lldb::offset_t *offset_ptr);
};		};

class DWARFUnit : public lldb_private::UserID {		class DWARFUnit : public lldb_private::UserID {
using die_iterator_range =		using die_iterator_range =
llvm::iterator_range<DWARFDebugInfoEntry::collection::iterator>;		llvm::iterator_range<DWARFDebugInfoEntry::collection::iterator>;

public:		public:
static llvm::Expected<DWARFUnitSP>		static llvm::Expected<DWARFUnitSP>
extract(SymbolFileDWARF &dwarf2Data, lldb::user_id_t uid,		extract(SymbolFileDWARF &dwarf2Data, lldb::user_id_t uid,
const lldb_private::DWARFDataExtractor &debug_info,		const lldb_private::DWARFDataExtractor &debug_info,
DIERef::Section section, lldb::offset_t *offset_ptr);		DIERef::Section section, lldb::offset_t *offset_ptr);
virtual ~DWARFUnit();		virtual ~DWARFUnit();

bool IsDWOUnit() { return m_is_dwo; }		bool IsDWOUnit() { return m_is_dwo; }
uint64_t GetDWOId();		llvm::Optional<uint64_t> GetDWOId();

void ExtractUnitDIEIfNeeded();		void ExtractUnitDIEIfNeeded();
void ExtractUnitDIENoDwoIfNeeded();		void ExtractUnitDIENoDwoIfNeeded();
void ExtractDIEsIfNeeded();		void ExtractDIEsIfNeeded();

class ScopedExtractDIEs {		class ScopedExtractDIEs {
DWARFUnit *m_cu;		DWARFUnit *m_cu;
public:		public:
▲ Show 20 Lines • Show All 227 Lines • ▼ Show 20 Lines	protected:
llvm::Optional<llvm::DWARFDebugRnglistTable> m_rnglist_table;		llvm::Optional<llvm::DWARFDebugRnglistTable> m_rnglist_table;
bool m_rnglist_table_done = false;		bool m_rnglist_table_done = false;
llvm::Optional<llvm::DWARFListTableHeader> m_loclist_table_header;		llvm::Optional<llvm::DWARFListTableHeader> m_loclist_table_header;

const DIERef::Section m_section;		const DIERef::Section m_section;
bool m_is_dwo;		bool m_is_dwo;
bool m_has_parsed_non_skeleton_unit;		bool m_has_parsed_non_skeleton_unit;
/// Value of DW_AT_GNU_dwo_id (v4) or dwo_id from CU header (v5).		/// Value of DW_AT_GNU_dwo_id (v4) or dwo_id from CU header (v5).
uint64_t m_dwo_id;		llvm::Optional<uint64_t> m_dwo_id;
		labathUnsubmitted Not Done Reply Inline Actions What's the relationship of this field and the m_is_dwo flag? Do we need both? labath: What's the relationship of this field and the m_is_dwo flag? Do we need both?
		clayborgAuthorUnsubmitted Done Reply Inline Actions I think the "m_is_dwo" is set to true if this is a DWO file, where m_dwo_id is for the skeleton compile unit. So they are different and can't be derived from each other if I understand the code correctly. clayborg: I think the "m_is_dwo" is set to true if this is a DWO file, where m_dwo_id is for the skeleton…
		labathUnsubmitted Not Done Reply Inline Actions ok. makes sense. labath: ok. makes sense.

private:		private:
void ParseProducerInfo();		void ParseProducerInfo();
void ExtractDIEsRWLocked();		void ExtractDIEsRWLocked();
void ClearDIEsRWLocked();		void ClearDIEsRWLocked();

void AddUnitDIE(const DWARFDebugInfoEntry &cu_die);		void AddUnitDIE(const DWARFDebugInfoEntry &cu_die);
void SetDwoStrOffsetsBase();		void SetDwoStrOffsetsBase();
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