ObjectFileELF Class Reference

Generic COFF object file reader. More...

#include <ObjectFileELF.h>

Inheritance diagram for ObjectFileELF:

Classes
struct	ELFDynamicWithName
struct	ELFSectionHeaderInfo

Public Member Functions
llvm::StringRef	GetPluginName () override
bool	isA (const void *ClassID) const override
bool	ParseHeader () override
	Attempts to parse the object header.
bool	SetLoadAddress (lldb_private::Target &target, lldb::addr_t value, bool value_is_offset) override
	Sets the load address for an entire module, assuming a rigid slide of sections, if possible in the implementation.
lldb::ByteOrder	GetByteOrder () const override
	Gets whether endian swapping should occur when extracting data from this object file.
bool	IsExecutable () const override
	Tells whether this object file is capable of being the main executable for a process.
uint32_t	GetAddressByteSize () const override
	Gets the address size in bytes for the current object file.
lldb_private::AddressClass	GetAddressClass (lldb::addr_t file_addr) override
	Get the address type given a file address in an object file.
void	ParseSymtab (lldb_private::Symtab &symtab) override
	Parse the symbol table into the provides symbol table object.
bool	IsStripped () override
	Detect if this object file has been stripped of local symbols.
void	CreateSections (lldb_private::SectionList &unified_section_list) override
void	Dump (lldb_private::Stream *s) override
	Dump a description of this object to a Stream.
lldb_private::ArchSpec	GetArchitecture () override
	Get the ArchSpec for this object file.
lldb_private::UUID	GetUUID () override
	Gets the UUID for this object file.
std::optional< lldb_private::FileSpec >	GetDebugLink ()
	Return the contents of the .gnu_debuglink section, if the object file contains it.
uint32_t	GetDependentModules (lldb_private::FileSpecList &files) override
	Extract the dependent modules from an object file.
lldb_private::Address	GetImageInfoAddress (lldb_private::Target *target) override
	Similar to Process::GetImageInfoAddress().
lldb_private::Address	GetEntryPointAddress () override
	Returns the address of the Entry Point in this object file - if the object file doesn't have an entry point (because it is not an executable file) then an invalid address is returned.
lldb_private::Address	GetBaseAddress () override
	Returns base address of this object file.
ObjectFile::Type	CalculateType () override
	The object file should be able to calculate its type by looking at its file header and possibly the sections or other data in the object file.
ObjectFile::Strata	CalculateStrata () override
	The object file should be able to calculate the strata of the object file.
size_t	ReadSectionData (lldb_private::Section *section, lldb::offset_t section_offset, void *dst, size_t dst_len) override
size_t	ReadSectionData (lldb_private::Section *section, lldb_private::DataExtractor &section_data) override
llvm::ArrayRef< elf::ELFProgramHeader >	ProgramHeaders ()
lldb_private::DataExtractor	GetSegmentData (const elf::ELFProgramHeader &H)
llvm::StringRef	StripLinkerSymbolAnnotations (llvm::StringRef symbol_name) const override
void	RelocateSection (lldb_private::Section *section) override
	Perform relocations on the section if necessary.
Public Member Functions inherited from lldb_private::ObjectFile
	ObjectFile (const lldb::ModuleSP &module_sp, const FileSpec *file_spec_ptr, lldb::offset_t file_offset, lldb::offset_t length, lldb::DataBufferSP data_sp, lldb::offset_t data_offset)
	Construct with a parent module, offset, and header data.
	ObjectFile (const lldb::ModuleSP &module_sp, const lldb::ProcessSP &process_sp, lldb::addr_t header_addr, lldb::DataBufferSP data_sp)
	~ObjectFile () override
	Destructor.
virtual lldb::addr_t	GetFileOffset () const
	Returns the offset into a file at which this object resides.
virtual lldb::addr_t	GetByteSize () const
virtual FileSpec &	GetFileSpec ()
	Get accessor to the object file specification.
virtual const FileSpec &	GetFileSpec () const
	Get const accessor to the object file specification.
virtual SectionList *	GetSectionList (bool update_module_section_list=true)
	Gets the section list for the currently selected architecture (and object for archives).
virtual void	SectionFileAddressesChanged ()
	Notify the ObjectFile that the file addresses in the Sections for this module have been changed.
Symtab *	GetSymtab (bool can_create=true)
	Gets the symbol table for the currently selected architecture (and object for archives).
virtual Symbol *	ResolveSymbolForAddress (const Address &so_addr, bool verify_unique)
	Appends a Symbol for the specified so_addr to the symbol table.
virtual void	ClearSymtab ()
	Frees the symbol table.
virtual lldb_private::FileSpecList	GetReExportedLibraries ()
	Gets the file spec list of libraries re-exported by this object file.
virtual bool	AllowAssemblyEmulationUnwindPlans ()
	Returns if the function bounds for symbols in this symbol file are likely accurate.
virtual uint32_t	GetNumThreadContexts ()
virtual std::string	GetIdentifierString ()
	Some object files may have an identifier string embedded in them, e.g.
virtual lldb_private::AddressableBits	GetAddressableBits ()
	Some object files may have the number of bits used for addressing embedded in them, e.g.
virtual bool	GetCorefileMainBinaryInfo (lldb::addr_t &value, bool &value_is_offset, UUID &uuid, ObjectFile::BinaryType &type)
	When the ObjectFile is a core file, lldb needs to locate the "binary" in the core file.
virtual bool	GetCorefileThreadExtraInfos (std::vector< lldb::tid_t > &tids)
	Get metadata about thread ids from the corefile.
virtual StructuredData::ObjectSP	GetCorefileProcessMetadata ()
	Get process metadata from the corefile in a StructuredData dictionary.
virtual lldb::RegisterContextSP	GetThreadContextAtIndex (uint32_t idx, lldb_private::Thread &thread)
virtual void	SetType (Type type)
	In cases where the type can't be calculated (elf files), this routine allows someone to explicitly set it.
virtual llvm::VersionTuple	GetVersion ()
	Get the object file version numbers.
virtual llvm::VersionTuple	GetMinimumOSVersion ()
	Get the minimum OS version this object file can run on.
virtual llvm::VersionTuple	GetSDKVersion ()
	Get the SDK OS version this object file was built with.
virtual bool	GetIsDynamicLinkEditor ()
	Return true if this file is a dynamic link editor (dyld)
Type	GetType ()
Strata	GetStrata ()
size_t	GetData (lldb::offset_t offset, size_t length, DataExtractor &data) const
size_t	CopyData (lldb::offset_t offset, size_t length, void *dst) const
virtual size_t	GetSectionDataSize (Section *section)
bool	IsInMemory () const
	Returns true if the object file exists only in memory.
virtual bool	CanTrustAddressRanges ()
	Can we trust the address ranges accelerator associated with this object file to be complete.
virtual std::unique_ptr< CallFrameInfo >	CreateCallFrameInfo ()
	Creates a plugin-specific call frame info.
virtual bool	LoadCoreFileImages (lldb_private::Process &process)
	Load binaries listed in a corefile.
uint32_t	GetCacheHash ()
	Get a hash that can be used for caching object file releated information.
std::string	GetObjectName () const
Public Member Functions inherited from lldb_private::PluginInterface
	PluginInterface ()=default
virtual	~PluginInterface ()=default
	PluginInterface (const PluginInterface &)=delete
PluginInterface &	operator= (const PluginInterface &)=delete
Public Member Functions inherited from lldb_private::ModuleChild
	ModuleChild (const lldb::ModuleSP &module_sp)
	Construct with owning module.
	~ModuleChild ()
	Destructor.
const ModuleChild &	operator= (const ModuleChild &rhs)
	Assignment operator.
lldb::ModuleSP	GetModule () const
	Get const accessor for the module pointer.
void	SetModule (const lldb::ModuleSP &module_sp)
	Set accessor for the module pointer.

Static Public Member Functions
static void	Initialize ()
static void	Terminate ()
static llvm::StringRef	GetPluginNameStatic ()
static llvm::StringRef	GetPluginDescriptionStatic ()
static lldb_private::ObjectFile *	CreateInstance (const lldb::ModuleSP &module_sp, lldb::DataBufferSP data_sp, lldb::offset_t data_offset, const lldb_private::FileSpec *file, lldb::offset_t file_offset, lldb::offset_t length)
static lldb_private::ObjectFile *	CreateMemoryInstance (const lldb::ModuleSP &module_sp, lldb::WritableDataBufferSP data_sp, const lldb::ProcessSP &process_sp, lldb::addr_t header_addr)
static size_t	GetModuleSpecifications (const lldb_private::FileSpec &file, lldb::DataBufferSP &data_sp, lldb::offset_t data_offset, lldb::offset_t file_offset, lldb::offset_t length, lldb_private::ModuleSpecList &specs)
static bool	MagicBytesMatch (lldb::DataBufferSP &data_sp, lldb::addr_t offset, lldb::addr_t length)
static bool	classof (const ObjectFile *obj)
Static Public Member Functions inherited from lldb_private::ObjectFile
static lldb::ObjectFileSP	FindPlugin (const lldb::ModuleSP &module_sp, const FileSpec *file_spec, lldb::offset_t file_offset, lldb::offset_t file_size, lldb::DataBufferSP &data_sp, lldb::offset_t &data_offset)
	Find a ObjectFile plug-in that can parse file_spec.
static lldb::ObjectFileSP	FindPlugin (const lldb::ModuleSP &module_sp, const lldb::ProcessSP &process_sp, lldb::addr_t header_addr, lldb::WritableDataBufferSP file_data_sp)
	Find a ObjectFile plug-in that can parse a file in memory.
static size_t	GetModuleSpecifications (const FileSpec &file, lldb::offset_t file_offset, lldb::offset_t file_size, ModuleSpecList &specs, lldb::DataBufferSP data_sp=lldb::DataBufferSP())
static size_t	GetModuleSpecifications (const lldb_private::FileSpec &file, lldb::DataBufferSP &data_sp, lldb::offset_t data_offset, lldb::offset_t file_offset, lldb::offset_t file_size, lldb_private::ModuleSpecList &specs)
static bool	IsObjectFile (lldb_private::FileSpec file_spec)
static bool	SplitArchivePathWithObject (llvm::StringRef path_with_object, lldb_private::FileSpec &archive_file, lldb_private::ConstString &archive_object, bool must_exist)
	Split a path into a file path with object name.
static lldb::WritableDataBufferSP	ReadMemory (const lldb::ProcessSP &process_sp, lldb::addr_t addr, size_t byte_size)
static lldb::SymbolType	GetSymbolTypeFromName (llvm::StringRef name, lldb::SymbolType symbol_type_hint=lldb::eSymbolTypeUndefined)
static lldb::SectionType	GetDWARFSectionTypeFromName (llvm::StringRef name)
	Parses the section type from a section name for DWARF sections.
static lldb::DataBufferSP	MapFileData (const FileSpec &file, uint64_t Size, uint64_t Offset)

Static Public Attributes
static char	ID
Static Public Attributes inherited from lldb_private::ObjectFile
static char	ID

Protected Member Functions
std::vector< LoadableData >	GetLoadableData (lldb_private::Target &target) override
	Loads this objfile to memory.
Protected Member Functions inherited from lldb_private::ObjectFile
bool	SetModulesArchitecture (const ArchSpec &new_arch)
	Sets the architecture for a module.

Static Protected Member Functions
static lldb::WritableDataBufferSP	MapFileDataWritable (const lldb_private::FileSpec &file, uint64_t Size, uint64_t Offset)

Private Types
typedef std::vector< elf::ELFProgramHeader >	ProgramHeaderColl
typedef std::vector< ELFSectionHeaderInfo >	SectionHeaderColl
typedef SectionHeaderColl::iterator	SectionHeaderCollIter
typedef SectionHeaderColl::const_iterator	SectionHeaderCollConstIter
typedef std::vector< ELFDynamicWithName >	DynamicSymbolColl
typedef DynamicSymbolColl::iterator	DynamicSymbolCollIter
typedef DynamicSymbolColl::const_iterator	DynamicSymbolCollConstIter
typedef std::map< lldb::addr_t, lldb_private::AddressClass >	FileAddressToAddressClassMap
	An ordered map of file address to address class.

Private Member Functions
	ObjectFileELF (const lldb::ModuleSP &module_sp, lldb::DataBufferSP data_sp, lldb::offset_t data_offset, const lldb_private::FileSpec *file, lldb::offset_t offset, lldb::offset_t length)
	ObjectFileELF (const lldb::ModuleSP &module_sp, lldb::DataBufferSP header_data_sp, const lldb::ProcessSP &process_sp, lldb::addr_t header_addr)
size_t	SectionIndex (const SectionHeaderCollIter &I)
	Returns the index of the given section header.
size_t	SectionIndex (const SectionHeaderCollConstIter &I) const
	Returns the index of the given section header.
bool	ParseProgramHeaders ()
	Parses all section headers present in this object file and populates m_program_headers.
size_t	ParseSectionHeaders ()
	Parses all section headers present in this object file and populates m_section_headers.
lldb::SectionType	GetSectionType (const ELFSectionHeaderInfo &H) const
size_t	ParseDependentModules ()
	Scans the dynamic section and locates all dependent modules (shared libraries) populating m_filespec_up.
size_t	ParseDynamicSymbols ()
	Parses the dynamic symbol table and populates m_dynamic_symbols.
std::pair< unsigned, FileAddressToAddressClassMap >	ParseSymbolTable (lldb_private::Symtab *symbol_table, lldb::user_id_t start_id, lldb_private::Section *symtab)
	Populates the symbol table with all non-dynamic linker symbols.
std::pair< unsigned, FileAddressToAddressClassMap >	ParseSymbols (lldb_private::Symtab *symbol_table, lldb::user_id_t start_id, lldb_private::SectionList *section_list, const size_t num_symbols, const lldb_private::DataExtractor &symtab_data, const lldb_private::DataExtractor &strtab_data)
	Helper routine for ParseSymbolTable().
unsigned	ParseTrampolineSymbols (lldb_private::Symtab *symbol_table, lldb::user_id_t start_id, const ELFSectionHeaderInfo *rela_hdr, lldb::user_id_t section_id)
	Scans the relocation entries and adds a set of artificial symbols to the given symbol table for each PLT slot.
void	ParseUnwindSymbols (lldb_private::Symtab *symbol_table, lldb_private::DWARFCallFrameInfo *eh_frame)
unsigned	RelocateDebugSections (const elf::ELFSectionHeader *rel_hdr, lldb::user_id_t rel_id, lldb_private::Symtab *thetab)
	Relocates debug sections.
unsigned	ApplyRelocations (lldb_private::Symtab *symtab, const elf::ELFHeader *hdr, const elf::ELFSectionHeader *rel_hdr, const elf::ELFSectionHeader *symtab_hdr, const elf::ELFSectionHeader *debug_hdr, lldb_private::DataExtractor &rel_data, lldb_private::DataExtractor &symtab_data, lldb_private::DataExtractor &debug_data, lldb_private::Section *rel_section)
size_t	GetSectionHeaderStringTable ()
	Loads the section name string table into m_shstr_data.
lldb::user_id_t	GetSectionIndexByName (const char *name)
	Utility method for looking up a section given its name.
const ELFSectionHeaderInfo *	GetSectionHeaderByIndex (lldb::user_id_t id)
	Returns the section header with the given id or NULL.

Static Private Member Functions
static size_t	GetProgramHeaderInfo (ProgramHeaderColl &program_headers, lldb_private::DataExtractor &object_data, const elf::ELFHeader &header)
static uint32_t	CalculateELFNotesSegmentsCRC32 (const ProgramHeaderColl &program_headers, lldb_private::DataExtractor &data)
static void	ParseARMAttributes (lldb_private::DataExtractor &data, uint64_t length, lldb_private::ArchSpec &arch_spec)
static size_t	GetSectionHeaderInfo (SectionHeaderColl &section_headers, lldb_private::DataExtractor &object_data, const elf::ELFHeader &header, lldb_private::UUID &uuid, std::string &gnu_debuglink_file, uint32_t &gnu_debuglink_crc, lldb_private::ArchSpec &arch_spec)
	Parses the elf section headers and returns the uuid, debug link name, crc, archspec.
ELF header dump routines
static void	DumpELFHeader (lldb_private::Stream *s, const elf::ELFHeader &header)
static void	DumpELFHeader_e_ident_EI_DATA (lldb_private::Stream *s, unsigned char ei_data)
static void	DumpELFHeader_e_type (lldb_private::Stream *s, elf::elf_half e_type)

Private Attributes
elf::ELFHeader	m_header
	ELF file header.
lldb_private::UUID	m_uuid
	ELF build ID.
std::string	m_gnu_debuglink_file
	ELF .gnu_debuglink file and crc data if available.
uint32_t	m_gnu_debuglink_crc = 0
ProgramHeaderColl	m_program_headers
	Collection of program headers.
SectionHeaderColl	m_section_headers
	Collection of section headers.
lldb::addr_t	m_dynamic_base_addr = LLDB_INVALID_ADDRESS
	The file address of the .dynamic section.
DynamicSymbolColl	m_dynamic_symbols
	Collection of symbols from the dynamic table.
std::shared_ptr< ObjectFileELF >	m_gnu_debug_data_object_file
	Object file parsed from .gnu_debugdata section (.
std::unique_ptr< lldb_private::FileSpecList >	m_filespec_up
	List of file specifications corresponding to the modules (shared libraries) on which this object file depends.
lldb_private::Address	m_entry_point_address
	Cached value of the entry point for this module.
lldb_private::ArchSpec	m_arch_spec
	The architecture detected from parsing elf file contents.
FileAddressToAddressClassMap	m_address_class_map
	The address class for each symbol in the elf file.

Static Private Attributes
static const uint32_t	m_plugin_version = 1
	Version of this reader common to all plugins based on this class.
static const uint32_t	g_core_uuid_magic

ELF program header dump routines
void	DumpELFProgramHeaders (lldb_private::Stream *s)
static void	DumpELFProgramHeader (lldb_private::Stream *s, const elf::ELFProgramHeader &ph)
static void	DumpELFProgramHeader_p_type (lldb_private::Stream *s, elf::elf_word p_type)
static void	DumpELFProgramHeader_p_flags (lldb_private::Stream *s, elf::elf_word p_flags)

ELF section header dump routines
void	DumpELFSectionHeaders (lldb_private::Stream *s)
void	DumpDependentModules (lldb_private::Stream *s)
	ELF dependent module dump routine.
void	DumpELFDynamic (lldb_private::Stream *s)
	ELF dump the .dynamic section.
const elf::ELFDynamic *	FindDynamicSymbol (unsigned tag)
unsigned	PLTRelocationType ()
bool	AnySegmentHasPhysicalAddress ()
std::shared_ptr< ObjectFileELF >	GetGnuDebugDataObjectFile ()
	Takes the .gnu_debugdata and returns the decompressed object file that is stored within that section.
std::optional< lldb_private::DataExtractor >	GetDynamicData ()
	Get the bytes that represent the .dynamic section.
std::optional< lldb_private::DataExtractor >	GetDynstrData ()
	Get the bytes that represent the dynamic string table data.
std::optional< lldb_private::DataExtractor >	ReadDataFromDynamic (const elf::ELFDynamic *dyn, uint64_t length, uint64_t offset=0)
	Read the bytes pointed to by the dyn dynamic entry.
std::optional< lldb_private::DataExtractor >	GetDynsymDataFromDynamic (uint32_t &num_symbols)
	Get the bytes that represent the dynamic symbol table from the .dynamic section from process memory.
std::optional< uint32_t >	GetNumSymbolsFromDynamicHash ()
	Get the number of symbols from the DT_HASH dynamic entry.
std::optional< uint32_t >	GetNumSymbolsFromDynamicGnuHash ()
	Get the number of symbols from the DT_GNU_HASH dynamic entry.
static void	DumpELFSectionHeader (lldb_private::Stream *s, const ELFSectionHeaderInfo &sh)
static void	DumpELFSectionHeader_sh_type (lldb_private::Stream *s, elf::elf_word sh_type)
static void	DumpELFSectionHeader_sh_flags (lldb_private::Stream *s, elf::elf_xword sh_flags)
static lldb_private::Status	RefineModuleDetailsFromNote (lldb_private::DataExtractor &data, lldb_private::ArchSpec &arch_spec, lldb_private::UUID &uuid)

Additional Inherited Members
Public Types inherited from lldb_private::ObjectFile
enum	Type {   eTypeInvalid = 0 , eTypeCoreFile , eTypeExecutable , eTypeDebugInfo ,   eTypeDynamicLinker , eTypeObjectFile , eTypeSharedLibrary , eTypeStubLibrary ,   eTypeJIT , eTypeUnknown }
enum	Strata {   eStrataInvalid = 0 , eStrataUnknown , eStrataUser , eStrataKernel ,   eStrataRawImage , eStrataJIT }
enum	BinaryType {   eBinaryTypeInvalid = 0 , eBinaryTypeUnknown , eBinaryTypeKernel , eBinaryTypeUser ,   eBinaryTypeUserAllImageInfos , eBinaryTypeStandalone }
	If we have a corefile binary hint, this enum specifies the binary type which we can use to select the correct DynamicLoader plugin. More...
Protected Attributes inherited from lldb_private::ObjectFile
FileSpec	m_file
Type	m_type
Strata	m_strata
lldb::addr_t	m_file_offset
	The offset in bytes into the file, or the address in memory.
lldb::addr_t	m_length
	The length of this object file if it is known (can be zero if length is unknown or can't be determined).
DataExtractor	m_data
	The data for this object file so things can be parsed lazily.
lldb::ProcessWP	m_process_wp
const lldb::addr_t	m_memory_addr
	Set if the object file only exists in memory.
std::unique_ptr< lldb_private::SectionList >	m_sections_up
std::unique_ptr< lldb_private::Symtab >	m_symtab_up
std::unique_ptr< llvm::once_flag >	m_symtab_once_up
	We need a llvm::once_flag that we can use to avoid locking the module lock and deadlocking LLDB.
std::optional< uint32_t >	m_cache_hash
Protected Attributes inherited from lldb_private::ModuleChild
lldb::ModuleWP	m_module_wp
	The Module that owns the object that inherits from this class.
Static Protected Attributes inherited from lldb_private::ObjectFile
static size_t	g_initial_bytes_to_read = 512
	The number of bytes to read when going through the plugins.

Detailed Description

Generic COFF object file reader.

Generic ELF object file reader.

This class provides a generic COFF reader plugin implementing the ObjectFile protocol. Assumes that the COFF object format is a Microsoft style COFF rather than the full generality afforded by it.

This class provides a generic ELF (32/64 bit) reader plugin implementing the ObjectFile protocol.

Definition at line 58 of file ObjectFileELF.h.

Member Typedef Documentation

DynamicSymbolColl

typedef std::vector<ELFDynamicWithName> ObjectFileELF::DynamicSymbolColl

private

Definition at line 190 of file ObjectFileELF.h.

DynamicSymbolCollConstIter

typedef DynamicSymbolColl::const_iterator ObjectFileELF::DynamicSymbolCollConstIter

private

Definition at line 192 of file ObjectFileELF.h.

DynamicSymbolCollIter

typedef DynamicSymbolColl::iterator ObjectFileELF::DynamicSymbolCollIter

private

Definition at line 191 of file ObjectFileELF.h.

FileAddressToAddressClassMap

typedef std::map<lldb::addr_t, lldb_private::AddressClass> ObjectFileELF::FileAddressToAddressClassMap

private

An ordered map of file address to address class.

Used on architectures like Arm where there is an alternative ISA mode like Thumb. The container is ordered so that it can be binary searched.

Definition at line 198 of file ObjectFileELF.h.

ProgramHeaderColl

typedef std::vector<elf::ELFProgramHeader> ObjectFileELF::ProgramHeaderColl

private

Definition at line 176 of file ObjectFileELF.h.

SectionHeaderColl

typedef std::vector<ELFSectionHeaderInfo> ObjectFileELF::SectionHeaderColl

private

Definition at line 182 of file ObjectFileELF.h.

SectionHeaderCollConstIter

typedef SectionHeaderColl::const_iterator ObjectFileELF::SectionHeaderCollConstIter

private

Definition at line 184 of file ObjectFileELF.h.

SectionHeaderCollIter

typedef SectionHeaderColl::iterator ObjectFileELF::SectionHeaderCollIter

private

Definition at line 183 of file ObjectFileELF.h.

Constructor & Destructor Documentation

ObjectFileELF() [1/2]

ObjectFileELF::ObjectFileELF ( const lldb::ModuleSP & module_sp, lldb::DataBufferSP data_sp, lldb::offset_t data_offset, const lldb_private::FileSpec * file, lldb::offset_t offset, lldb::offset_t length )

private

Definition at line 697 of file ObjectFileELF.cpp.

References lldb_private::ObjectFile::m_file, and lldb_private::ObjectFile::ObjectFile().

Referenced by CreateInstance(), CreateMemoryInstance(), GetGnuDebugDataObjectFile(), and ParseSymbolTable().

ObjectFileELF() [2/2]

ObjectFileELF::ObjectFileELF ( const lldb::ModuleSP & module_sp, lldb::DataBufferSP header_data_sp, const lldb::ProcessSP & process_sp, lldb::addr_t header_addr )

private

Definition at line 706 of file ObjectFileELF.cpp.

References lldb_private::ObjectFile::ObjectFile().

Member Function Documentation

AnySegmentHasPhysicalAddress()

bool ObjectFileELF::AnySegmentHasPhysicalAddress ( )

private

Definition at line 3817 of file ObjectFileELF.cpp.

References ProgramHeaders().

Referenced by GetLoadableData().

ApplyRelocations()

unsigned ObjectFileELF::ApplyRelocations ( lldb_private::Symtab * symtab, const elf::ELFHeader * hdr, const elf::ELFSectionHeader * rel_hdr, const elf::ELFSectionHeader * symtab_hdr, const elf::ELFSectionHeader * debug_hdr, lldb_private::DataExtractor & rel_data, lldb_private::DataExtractor & symtab_data, lldb_private::DataExtractor & debug_data, lldb_private::Section * rel_section )

private

Definition at line 2792 of file ObjectFileELF.cpp.

References ApplyELF32ABS32RelRelocation(), ApplyELF64ABS32Relocation(), ApplyELF64ABS64Relocation(), lldb_private::ConstString::AsCString(), elf::ELFHeader::e_machine, lldb_private::Symtab::FindSymbolByID(), lldb_private::Symbol::GetAddressRef(), lldb_private::WritableDataBuffer::GetBytes(), lldb_private::Address::GetFileAddress(), lldb_private::Section::GetFileOffset(), lldb_private::ModuleChild::GetModule(), lldb_private::Section::GetName(), lldb_private::DataExtractor::GetSharedDataBuffer(), elf::ELFHeader::Is32Bit(), elf::ELFSectionHeader::sh_entsize, elf::ELFSectionHeader::sh_size, and elf::ELFSectionHeader::sh_type.

Referenced by RelocateDebugSections().

CalculateELFNotesSegmentsCRC32()

uint32_t ObjectFileELF::CalculateELFNotesSegmentsCRC32 ( const ProgramHeaderColl & program_headers, lldb_private::DataExtractor & data )

staticprivate

Definition at line 471 of file ObjectFileELF.cpp.

References calc_crc32(), and lldb_private::DataExtractor::SetData().

Referenced by GetModuleSpecifications(), and GetUUID().

CalculateStrata()

ObjectFile::Strata ObjectFileELF::CalculateStrata ( )

overridevirtual

The object file should be able to calculate the strata of the object file.

Many object files for platforms might be for either user space debugging or for kernel debugging. If your object file subclass can figure this out, it will help with debugger plug-in selection when it comes time to debug.

Returns

The calculated object file strata for the current object file.

Implements lldb_private::ObjectFile.

Definition at line 3679 of file ObjectFileELF.cpp.

References lldb_private::ObjectFile::eStrataKernel, lldb_private::ObjectFile::eStrataUnknown, lldb_private::ObjectFile::eStrataUser, lldb_private::SectionList::FindSectionByName(), lldb_private::ObjectFile::GetSectionList(), m_header, and ReadSectionData().

CalculateType()

ObjectFile::Type ObjectFileELF::CalculateType ( )

overridevirtual

The object file should be able to calculate its type by looking at its file header and possibly the sections or other data in the object file.

The file type is used in the debugger to help select the correct plug- ins for the job at hand, so this is important to get right. If any eTypeXXX definitions do not match up with the type of file you are loading, please feel free to add a new enumeration value.

Returns

The calculated file type for the current object file.

Implements lldb_private::ObjectFile.

Definition at line 3651 of file ObjectFileELF.cpp.

References lldb_private::ObjectFile::eTypeCoreFile, lldb_private::ObjectFile::eTypeExecutable, lldb_private::ObjectFile::eTypeObjectFile, lldb_private::ObjectFile::eTypeSharedLibrary, lldb_private::ObjectFile::eTypeUnknown, and m_header.

Referenced by GetArchitecture(), ParseSymbols(), ParseSymtab(), and RelocateSection().

classof()

bool ObjectFileELF::classof ( const ObjectFile * obj )

inlinestatic

Definition at line 98 of file ObjectFileELF.h.

References ID, and lldb_private::ObjectFile::ObjectFile().

Referenced by IsDwpSymbolFile().

CreateInstance()

ObjectFile * ObjectFileELF::CreateInstance ( const lldb::ModuleSP & module_sp, lldb::DataBufferSP data_sp, lldb::offset_t data_offset, const lldb_private::FileSpec * file, lldb::offset_t file_offset, lldb::offset_t length )

static

Definition at line 366 of file ObjectFileELF.cpp.

References elf::ELFHeader::AddressSizeInBytes(), elf::ELFHeader::MagicBytesMatch(), MapFileDataWritable(), lldb_private::ObjectFile::ObjectFile(), and ObjectFileELF().

Referenced by Initialize(), and Terminate().

CreateMemoryInstance()

ObjectFile * ObjectFileELF::CreateMemoryInstance ( const lldb::ModuleSP & module_sp, lldb::WritableDataBufferSP data_sp, const lldb::ProcessSP & process_sp, lldb::addr_t header_addr )

static

Definition at line 420 of file ObjectFileELF.cpp.

References elf::ELFHeader::e_phentsize, elf::ELFHeader::e_phnum, elf::ELFHeader::e_phoff, elf::ELFHeader::Is32Bit(), elf::ELFHeader::Is64Bit(), elf::ELFHeader::MagicBytesMatch(), lldb_private::ObjectFile::ObjectFile(), ObjectFileELF(), elf::ELFHeader::Parse(), lldb_private::ObjectFile::ReadMemory(), and lldb_private::DataExtractor::SetData().

Referenced by Initialize().

CreateSections()

void ObjectFileELF::CreateSections ( lldb_private::SectionList & unified_section_list )

overridevirtual

Implements lldb_private::ObjectFile.

Definition at line 1872 of file ObjectFileELF.cpp.

References lldb_private::SectionList::AddSection(), lldb::eSectionTypeContainer, lldb::eSectionTypeELFSymbolTable, lldb_private::ObjectFile::eTypeDebugInfo, lldb_private::SectionList::FindSectionByType(), GetGnuDebugDataObjectFile(), lldb_private::ModuleChild::GetModule(), GetPermissions(), GetSectionType(), GetTargetByteSize(), lldb_private::ObjectFile::GetType(), m_arch_spec, m_section_headers, lldb_private::ObjectFile::m_sections_up, elf::ELFProgramHeader::p_align, elf::ELFProgramHeader::p_filesz, elf::ELFProgramHeader::p_offset, elf::ELFProgramHeader::p_type, ParseSectionHeaders(), ProgramHeaders(), lldb_private::SectionList::ReplaceSection(), SectionIndex(), SegmentID(), elf::ELFSectionHeader::sh_addralign, elf::ELFSectionHeader::sh_flags, elf::ELFSectionHeader::sh_offset, elf::ELFSectionHeader::sh_size, and elf::ELFSectionHeader::sh_type.

Dump()

void ObjectFileELF::Dump ( lldb_private::Stream * s )

overridevirtual

Dump a description of this object to a Stream.

Dump a description of the current contents of this object to the supplied stream s. The dumping should include the section list if it has been parsed, and the symbol table if it has been parsed.

Parameters

[in]

s

The stream to which to dump the object description.

Implements lldb_private::ObjectFile.

Definition at line 3235 of file ObjectFileELF.cpp.

References lldb_private::Stream::AsRawOstream(), lldb_private::SectionList::Dump(), lldb_private::Symtab::Dump(), DumpDependentModules(), DumpELFDynamic(), DumpELFHeader(), DumpELFProgramHeaders(), DumpELFSectionHeaders(), lldb_private::Stream::EOL(), lldb_private::eSortOrderNone, GetArchitecture(), lldb_private::ArchSpec::GetArchitectureName(), lldb_private::Address::GetFileAddress(), GetImageInfoAddress(), lldb_private::Stream::GetIndentLevel(), lldb_private::ModuleChild::GetModule(), lldb_private::ObjectFile::GetSectionList(), lldb_private::ObjectFile::GetSymtab(), lldb_private::Stream::Indent(), lldb_private::Address::IsValid(), LLDB_INVALID_ADDRESS, lldb_private::ObjectFile::m_file, m_header, lldb_private::ObjectFile::m_memory_addr, lldb_private::Stream::Printf(), lldb_private::Stream::PutCString(), and UINT32_MAX.

DumpDependentModules()

void ObjectFileELF::DumpDependentModules ( lldb_private::Stream * s )

private

ELF dependent module dump routine.

Definition at line 3508 of file ObjectFileELF.cpp.

References lldb_private::ConstString::GetCString(), lldb_private::FileSpec::GetFilename(), m_filespec_up, ParseDependentModules(), lldb_private::Stream::Printf(), and lldb_private::Stream::PutCString().

Referenced by Dump().

DumpELFDynamic()

void ObjectFileELF::DumpELFDynamic ( lldb_private::Stream * s )

private

ELF dump the .dynamic section.

Definition at line 3604 of file ObjectFileELF.cpp.

References lldb_private::Stream::EOL(), getDynamicTagAsString(), m_dynamic_symbols, m_header, ParseDynamicSymbols(), lldb_private::Stream::Printf(), and lldb_private::Stream::PutCString().

Referenced by Dump().

DumpELFHeader()

void ObjectFileELF::DumpELFHeader ( lldb_private::Stream * s, const elf::ELFHeader & header )

staticprivate

Definition at line 3281 of file ObjectFileELF.cpp.

References DumpELFHeader_e_ident_EI_DATA(), DumpELFHeader_e_type(), elf::ELFHeader::e_ehsize, elf::ELFHeader::e_entry, elf::ELFHeader::e_flags, elf::ELFHeader::e_ident, elf::ELFHeader::e_machine, elf::ELFHeader::e_phentsize, elf::ELFHeader::e_phnum, elf::ELFHeader::e_phoff, elf::ELFHeader::e_shentsize, elf::ELFHeader::e_shnum, elf::ELFHeader::e_shoff, elf::ELFHeader::e_shstrndx, elf::ELFHeader::e_type, elf::ELFHeader::e_version, lldb_private::Stream::Printf(), and lldb_private::Stream::PutCString().

Referenced by Dump().

DumpELFHeader_e_ident_EI_DATA()

void ObjectFileELF::DumpELFHeader_e_ident_EI_DATA ( lldb_private::Stream * s, unsigned char ei_data )

staticprivate

Definition at line 3341 of file ObjectFileELF.cpp.

Referenced by DumpELFHeader().

DumpELFHeader_e_type()

void ObjectFileELF::DumpELFHeader_e_type ( lldb_private::Stream * s, elf::elf_half e_type )

staticprivate

Definition at line 3316 of file ObjectFileELF.cpp.

Referenced by DumpELFHeader().

DumpELFProgramHeader()

void ObjectFileELF::DumpELFProgramHeader ( lldb_private::Stream * s, const elf::ELFProgramHeader & ph )

staticprivate

Definition at line 3361 of file ObjectFileELF.cpp.

References DumpELFProgramHeader_p_flags(), DumpELFProgramHeader_p_type(), elf::ELFProgramHeader::p_align, elf::ELFProgramHeader::p_filesz, elf::ELFProgramHeader::p_flags, elf::ELFProgramHeader::p_memsz, elf::ELFProgramHeader::p_offset, elf::ELFProgramHeader::p_paddr, elf::ELFProgramHeader::p_type, elf::ELFProgramHeader::p_vaddr, and lldb_private::Stream::Printf().

Referenced by DumpELFProgramHeaders().

DumpELFProgramHeader_p_flags()

void ObjectFileELF::DumpELFProgramHeader_p_flags ( lldb_private::Stream * s, elf::elf_word p_flags )

staticprivate

Definition at line 3398 of file ObjectFileELF.cpp.

Referenced by DumpELFProgramHeader().

DumpELFProgramHeader_p_type()

void ObjectFileELF::DumpELFProgramHeader_p_type ( lldb_private::Stream * s, elf::elf_word p_type )

staticprivate

Definition at line 3377 of file ObjectFileELF.cpp.

References CASE_AND_STREAM, and lldb_private::Stream::Printf().

Referenced by DumpELFProgramHeader().

DumpELFProgramHeaders()

void ObjectFileELF::DumpELFProgramHeaders ( lldb_private::Stream * s )

private

Definition at line 3409 of file ObjectFileELF.cpp.

References DumpELFProgramHeader(), lldb_private::Stream::EOL(), lldb_private::Stream::Format(), m_program_headers, ParseProgramHeaders(), and lldb_private::Stream::PutCString().

Referenced by Dump().

DumpELFSectionHeader()

void ObjectFileELF::DumpELFSectionHeader ( lldb_private::Stream * s, const ELFSectionHeaderInfo & sh )

staticprivate

Definition at line 3429 of file ObjectFileELF.cpp.

References DumpELFSectionHeader_sh_flags(), DumpELFSectionHeader_sh_type(), lldb_private::Stream::Printf(), elf::ELFSectionHeader::sh_addr, elf::ELFSectionHeader::sh_addralign, elf::ELFSectionHeader::sh_entsize, elf::ELFSectionHeader::sh_flags, elf::ELFSectionHeader::sh_info, elf::ELFSectionHeader::sh_link, elf::ELFSectionHeader::sh_name, elf::ELFSectionHeader::sh_offset, elf::ELFSectionHeader::sh_size, and elf::ELFSectionHeader::sh_type.

Referenced by DumpELFSectionHeaders().

DumpELFSectionHeader_sh_flags()

void ObjectFileELF::DumpELFSectionHeader_sh_flags ( lldb_private::Stream * s, elf::elf_xword sh_flags )

staticprivate

Definition at line 3473 of file ObjectFileELF.cpp.

Referenced by DumpELFSectionHeader().

DumpELFSectionHeader_sh_type()

void ObjectFileELF::DumpELFSectionHeader_sh_type ( lldb_private::Stream * s, elf::elf_word sh_type )

staticprivate

Definition at line 3445 of file ObjectFileELF.cpp.

References CASE_AND_STREAM, and lldb_private::Stream::Printf().

Referenced by DumpELFSectionHeader().

DumpELFSectionHeaders()

void ObjectFileELF::DumpELFSectionHeaders ( lldb_private::Stream * s )

private

Definition at line 3485 of file ObjectFileELF.cpp.

References DumpELFSectionHeader(), m_section_headers, ParseSectionHeaders(), lldb_private::Stream::Printf(), and lldb_private::Stream::PutCString().

Referenced by Dump().

FindDynamicSymbol()

const ELFDynamic * ObjectFileELF::FindDynamicSymbol ( unsigned tag )

private

Definition at line 2513 of file ObjectFileELF.cpp.

References m_dynamic_symbols, and ParseDynamicSymbols().

Referenced by GetDynstrData(), GetDynsymDataFromDynamic(), GetNumSymbolsFromDynamicGnuHash(), GetNumSymbolsFromDynamicHash(), ParseSymtab(), and PLTRelocationType().

GetAddressByteSize()

uint32_t ObjectFileELF::GetAddressByteSize ( ) const

overridevirtual

Gets the address size in bytes for the current object file.

Returns

The size of an address in bytes for the currently selected architecture (and object for archives). Returns zero if no architecture or object has been selected.

Implements lldb_private::ObjectFile.

Definition at line 783 of file ObjectFileELF.cpp.

References lldb_private::ObjectFile::m_data.

Referenced by GetImageInfoAddress(), GetNumSymbolsFromDynamicGnuHash(), GetSegmentData(), ReadDataFromDynamic(), ReadSectionData(), and SetLoadAddress().

GetAddressClass()

AddressClass ObjectFileELF::GetAddressClass ( lldb::addr_t file_addr )

overridevirtual

Get the address type given a file address in an object file.

Many binary file formats know what kinds This is primarily for ARM binaries, though it can be applied to any executable file format that supports different opcode types within the same binary. ARM binaries support having both ARM and Thumb within the same executable container. We need to be able to get

Returns

The size of an address in bytes for the currently selected architecture (and object for archives). Returns zero if no architecture or object has been selected.

Reimplemented from lldb_private::ObjectFile.

Definition at line 787 of file ObjectFileELF.cpp.

References lldb_private::eCode, lldb_private::eUnknown, lldb_private::ObjectFile::GetAddressClass(), lldb_private::Symtab::GetObjectFile(), lldb_private::ObjectFile::GetSymtab(), m_address_class_map, and lldb_private::ObjectFile::ObjectFile().

GetArchitecture()

ArchSpec ObjectFileELF::GetArchitecture ( )

overridevirtual

Get the ArchSpec for this object file.

Returns

The ArchSpec of this object file. In case of error, an invalid ArchSpec object is returned.

Implements lldb_private::ObjectFile.

Definition at line 3625 of file ObjectFileELF.cpp.

References CalculateType(), lldb_private::ObjectFile::eTypeCoreFile, m_arch_spec, lldb_private::ObjectFile::m_data, m_section_headers, ParseHeader(), ParseSectionHeaders(), ProgramHeaders(), RefineModuleDetailsFromNote(), and lldb_private::DataExtractor::SetData().

Referenced by Dump(), ParseSymbols(), and ParseSymtab().

GetBaseAddress()

Address ObjectFileELF::GetBaseAddress ( )

overridevirtual

Returns base address of this object file.

This also sometimes referred to as the "preferred load address" or the "image base address". Addresses within object files are often expressed relative to this base. If this address corresponds to a specific section (usually the first byte of the first section) then the returned address will have this section set. Otherwise, the address will just have the offset member filled in, indicating that this represents a file address.

Reimplemented from lldb_private::ObjectFile.

Definition at line 961 of file ObjectFileELF.cpp.

References lldb_private::ObjectFile::eTypeObjectFile, lldb_private::ObjectFile::GetSectionList(), lldb_private::ObjectFile::GetType(), LLDB_INVALID_ADDRESS, m_section_headers, elf::ELFProgramHeader::p_type, ProgramHeaders(), SectionIndex(), SegmentID(), and elf::ELFSectionHeader::sh_flags.

Referenced by GetSegmentData(), and SetLoadAddress().

GetByteOrder()

ByteOrder ObjectFileELF::GetByteOrder ( ) const

overridevirtual

Gets whether endian swapping should occur when extracting data from this object file.

Returns

Returns true if endian swapping is needed, false otherwise.

Implements lldb_private::ObjectFile.

Definition at line 775 of file ObjectFileELF.cpp.

References lldb::eByteOrderBig, lldb::eByteOrderInvalid, lldb::eByteOrderLittle, and m_header.

Referenced by GetSegmentData(), ReadDataFromDynamic(), and ReadSectionData().

GetDebugLink()

std::optional< FileSpec > ObjectFileELF::GetDebugLink

(

)

Return the contents of the .gnu_debuglink section, if the object file contains it.

Definition at line 866 of file ObjectFileELF.cpp.

References m_gnu_debuglink_file.

Referenced by SymbolVendorELF::CreateInstance().

GetDependentModules()

uint32_t ObjectFileELF::GetDependentModules ( lldb_private::FileSpecList & file_list )

overridevirtual

Extract the dependent modules from an object file.

If an object file has information about which other images it depends on (such as shared libraries), this function will provide the list. Since many executables or shared libraries may depend on the same files, FileSpecList::AppendIfUnique(const FileSpec &) should be used to make sure any files that are added are not already in the list.

Parameters

[out]

file_list

A list of file specification objects that gets dependent files appended to.

Returns

The number of new files that were appended to file_list.

See also

FileSpecList::AppendIfUnique(const FileSpec &)

Implements lldb_private::ObjectFile.

Definition at line 872 of file ObjectFileELF.cpp.

References lldb_private::FileSpecList::AppendIfUnique(), m_filespec_up, and ParseDependentModules().

GetDynamicData()

std::optional< lldb_private::DataExtractor > ObjectFileELF::GetDynamicData ( )

private

Get the bytes that represent the .dynamic section.

This function will fetch the data for the .dynamic section in an ELF file. The PT_DYNAMIC program header will be used to extract the data and this function will fall back to using the section headers if PT_DYNAMIC isn't found.

Returns

The bytes that represent the string table data or std::nullopt if an error occured.

Definition at line 3919 of file ObjectFileELF.cpp.

References lldb::eSectionTypeELFDynamicLinkInfo, lldb_private::DataExtractor::GetByteSize(), lldb_private::ObjectFile::GetSectionList(), GetSegmentData(), m_dynamic_base_addr, ProgramHeaders(), and ReadSectionData().

Referenced by ParseDynamicSymbols().

GetDynstrData()

std::optional< DataExtractor > ObjectFileELF::GetDynstrData ( )

private

Get the bytes that represent the dynamic string table data.

This function will fetch the data for the string table in an ELF file. If the ELF file is loaded from a file on disk, it will use the section headers to extract the data and fall back to using the DT_STRTAB and DT_STRSZ .dynamic entries.

Returns

The bytes that represent the string table data or std::nullopt if an error occured.

Definition at line 3881 of file ObjectFileELF.cpp.

References elf::ELFDynamic::d_val, lldb::eSectionTypeELFDynamicLinkInfo, FindDynamicSymbol(), GetSectionHeaderByIndex(), lldb_private::ObjectFile::GetSectionList(), ReadDataFromDynamic(), and ReadSectionData().

Referenced by ParseDynamicSymbols(), and ParseSymtab().

GetDynsymDataFromDynamic()

std::optional< DataExtractor > ObjectFileELF::GetDynsymDataFromDynamic ( uint32_t & num_symbols )

private

Get the bytes that represent the dynamic symbol table from the .dynamic section from process memory.

This functon uses the DT_SYMTAB value from the .dynamic section to read the symbols table data from process memory. The number of symbols in the symbol table is calculated by looking at the DT_HASH or DT_GNU_HASH values as the symbol count isn't stored in the .dynamic section.

Returns

The bytes that represent the symbol table data from the .dynamic section or section headers or std::nullopt if an error occured or if there is no dynamic symbol data available.

Definition at line 4035 of file ObjectFileELF.cpp.

References elf::ELFDynamic::d_val, FindDynamicSymbol(), GetNumSymbolsFromDynamicGnuHash(), GetNumSymbolsFromDynamicHash(), lldb_private::ObjectFile::m_process_wp, and ReadDataFromDynamic().

Referenced by ParseSymtab().

GetEntryPointAddress()

lldb_private::Address ObjectFileELF::GetEntryPointAddress ( )

overridevirtual

Returns the address of the Entry Point in this object file - if the object file doesn't have an entry point (because it is not an executable file) then an invalid address is returned.

Returns

Returns the entry address for this module.

Reimplemented from lldb_private::ObjectFile.

Definition at line 944 of file ObjectFileELF.cpp.

References lldb_private::ObjectFile::GetSectionList(), IsExecutable(), m_entry_point_address, m_header, and ParseHeader().

Referenced by ParseSymtab().

GetGnuDebugDataObjectFile()

std::shared_ptr< ObjectFileELF > ObjectFileELF::GetGnuDebugDataObjectFile ( )

private

Takes the .gnu_debugdata and returns the decompressed object file that is stored within that section.

Returns

either the decompressed object file stored within the .gnu_debugdata section or nullptr if an error occured or if there's no section with that name.

Definition at line 1977 of file ObjectFileELF.cpp.

References lldb_private::FileSpec::CopyByAppendingPathComponent(), lldb_private::ObjectFile::eTypeDebugInfo, lldb_private::SectionList::FindSectionByName(), lldb_private::DataExtractor::GetData(), lldb_private::ObjectFile::GetFileSpec(), lldb_private::ModuleChild::GetModule(), lldb_private::ObjectFile::GetSectionList(), lldb_private::lzma::isAvailable(), m_gnu_debug_data_object_file, ObjectFileELF(), and lldb_private::lzma::uncompress().

Referenced by CreateSections().

GetImageInfoAddress()

Address ObjectFileELF::GetImageInfoAddress ( lldb_private::Target * target )

overridevirtual

Similar to Process::GetImageInfoAddress().

Some platforms embed auxiliary structures useful to debuggers in the address space of the inferior process. This method returns the address of such a structure if the information can be resolved via entries in the object file. ELF, for example, provides a means to hook into the runtime linker so that a debugger may monitor the loading and unloading of shared libraries.

Returns

The address of any auxiliary tables, or an invalid address if this object file format does not support or contain such information.

Reimplemented from lldb_private::ObjectFile.

Definition at line 884 of file ObjectFileELF.cpp.

References elf::ELFDynamic::d_tag, error(), GetAddressByteSize(), lldb_private::Address::GetLoadAddress(), lldb_private::ObjectFile::GetSectionList(), LLDB_INVALID_ADDRESS, m_dynamic_base_addr, m_dynamic_symbols, ParseDynamicSymbols(), lldb_private::Target::ReadPointerFromMemory(), lldb_private::Target::ReadUnsignedIntegerFromMemory(), lldb_private::Address::ResolveAddressUsingFileSections(), lldb_private::Address::SetOffset(), and UINT64_MAX.

Referenced by Dump().

GetLoadableData()

std::vector< ObjectFile::LoadableData > ObjectFileELF::GetLoadableData ( lldb_private::Target & target )

overrideprotectedvirtual

Loads this objfile to memory.

Loads the bits needed to create an executable image to the memory. It is useful with bare-metal targets where target does not have the ability to start a process itself.

Parameters

[in]

target

Target where to load.

Reimplemented from lldb_private::ObjectFile.

Definition at line 3826 of file ObjectFileELF.cpp.

References AnySegmentHasPhysicalAddress(), lldb_private::ObjectFile::LoadableData::Contents, lldb_private::ObjectFile::LoadableData::Dest, GetSegmentData(), LLDB_INVALID_ADDRESS, and ProgramHeaders().

GetModuleSpecifications()

size_t ObjectFileELF::GetModuleSpecifications ( const lldb_private::FileSpec & file, lldb::DataBufferSP & data_sp, lldb::offset_t data_offset, lldb::offset_t file_offset, lldb::offset_t length, lldb_private::ModuleSpecList & specs )

static

Definition at line 559 of file ObjectFileELF.cpp.

References lldb_private::ModuleSpecList::Append(), lldb_private::ConstString::AsCString(), calc_crc32(), CalculateELFNotesSegmentsCRC32(), elf::ELFHeader::e_ident, elf::ELFHeader::e_machine, elf::ELFHeader::e_type, lldb_private::eArchTypeELF, g_core_uuid_magic, lldb_private::ModuleSpec::GetArchitecture(), lldb_private::ArchSpec::GetArchitectureName(), lldb_private::FileSpec::GetFilename(), lldb_private::GetLog(), GetOsFromOSABI(), lldb_private::FileSpec::GetPath(), GetProgramHeaderInfo(), GetSectionHeaderInfo(), lldb_private::ModuleSpecList::GetSize(), lldb_private::ArchSpec::GetTriple(), lldb_private::ModuleSpec::GetUUID(), elf::ELFHeader::HasHeaderExtension(), lldb_private::ArchSpec::IsValid(), lldb_private::UUID::IsValid(), LLDB_LOGF, LLDB_SCOPED_TIMERF, MagicBytesMatch(), lldb_private::ObjectFile::MapFileData(), lldb_private::Modules, OSABIAsCString(), elf::ELFHeader::Parse(), lldb_private::ArchSpec::SetArchitecture(), lldb_private::DataExtractor::SetData(), lldb_private::ModuleSpec::SetObjectOffset(), lldb_private::ModuleSpec::SetObjectSize(), subTypeFromElfHeader(), and UNUSED_IF_ASSERT_DISABLED.

Referenced by Initialize().

GetNumSymbolsFromDynamicGnuHash()

std::optional< uint32_t > ObjectFileELF::GetNumSymbolsFromDynamicGnuHash ( )

private

Get the number of symbols from the DT_GNU_HASH dynamic entry.

Definition at line 3970 of file ObjectFileELF.cpp.

References FindDynamicSymbol(), GetAddressByteSize(), lldb_private::DataExtractor::GetU32(), and ReadDataFromDynamic().

Referenced by GetDynsymDataFromDynamic().

GetNumSymbolsFromDynamicHash()

std::optional< uint32_t > ObjectFileELF::GetNumSymbolsFromDynamicHash ( )

private

Get the number of symbols from the DT_HASH dynamic entry.

Definition at line 3950 of file ObjectFileELF.cpp.

References FindDynamicSymbol(), lldb_private::DataExtractor::GetU32(), and ReadDataFromDynamic().

Referenced by GetDynsymDataFromDynamic().

GetPluginDescriptionStatic()

llvm::StringRef ObjectFileELF::GetPluginDescriptionStatic ( )

inlinestatic

Definition at line 67 of file ObjectFileELF.h.

Referenced by Initialize().

GetPluginName()

llvm::StringRef ObjectFileELF::GetPluginName ( )

inlineoverridevirtual

Implements lldb_private::PluginInterface.

Definition at line 91 of file ObjectFileELF.h.

References GetPluginNameStatic().

GetPluginNameStatic()

llvm::StringRef ObjectFileELF::GetPluginNameStatic ( )

inlinestatic

Definition at line 65 of file ObjectFileELF.h.

Referenced by GetPluginName(), and Initialize().

GetProgramHeaderInfo()

size_t ObjectFileELF::GetProgramHeaderInfo ( ProgramHeaderColl & program_headers, lldb_private::DataExtractor & object_data, const elf::ELFHeader & header )

staticprivate

Definition at line 1004 of file ObjectFileELF.cpp.

References elf::ELFHeader::e_phentsize, elf::ELFHeader::e_phnum, elf::ELFHeader::e_phoff, and lldb_private::DataExtractor::SetData().

Referenced by GetModuleSpecifications(), and ParseProgramHeaders().

GetSectionHeaderByIndex()

const ObjectFileELF::ELFSectionHeaderInfo * ObjectFileELF::GetSectionHeaderByIndex ( lldb::user_id_t id )

private

Returns the section header with the given id or NULL.

Definition at line 1636 of file ObjectFileELF.cpp.

References m_section_headers, and ParseSectionHeaders().

Referenced by GetDynstrData(), ParseSymbolTable(), ParseSymtab(), ParseTrampolineSymbols(), and RelocateDebugSections().

GetSectionHeaderInfo()

size_t ObjectFileELF::GetSectionHeaderInfo ( SectionHeaderColl & section_headers, lldb_private::DataExtractor & object_data, const elf::ELFHeader & header, lldb_private::UUID & uuid, std::string & gnu_debuglink_file, uint32_t & gnu_debuglink_crc, lldb_private::ArchSpec & arch_spec )

staticprivate

Parses the elf section headers and returns the uuid, debug link name, crc, archspec.

Definition at line 1358 of file ObjectFileELF.cpp.

References elf::ELFHeader::e_flags, elf::ELFHeader::e_ident, elf::ELFHeader::e_machine, elf::ELFHeader::e_shentsize, elf::ELFHeader::e_shnum, elf::ELFHeader::e_shoff, elf::ELFHeader::e_shstrndx, lldb_private::eArchTypeELF, lldb_private::ArchSpec::eARM_abi_hard_float, lldb_private::ArchSpec::eARM_abi_soft_float, lldb_private::ArchSpec::eLoongArch_abi_double_float, lldb_private::ArchSpec::eLoongArch_abi_single_float, lldb_private::ArchSpec::eMIPS_ABI_FP_64, lldb_private::ArchSpec::eMIPS_ABI_FP_64A, lldb_private::ArchSpec::eMIPS_ABI_FP_ANY, lldb_private::ArchSpec::eMIPS_ABI_FP_DOUBLE, lldb_private::ArchSpec::eMIPS_ABI_FP_OLD_64, lldb_private::ArchSpec::eMIPS_ABI_FP_SINGLE, lldb_private::ArchSpec::eMIPS_ABI_FP_SOFT, lldb_private::ArchSpec::eMIPS_ABI_FP_XX, lldb_private::ArchSpec::eMIPSABI_EABI32, lldb_private::ArchSpec::eMIPSABI_EABI64, lldb_private::ArchSpec::eMIPSABI_N32, lldb_private::ArchSpec::eMIPSABI_N64, lldb_private::ArchSpec::eMIPSABI_O32, lldb_private::ArchSpec::eMIPSABI_O64, lldb_private::ArchSpec::eMIPSAse_mdmx, lldb_private::ArchSpec::eMIPSAse_micromips, lldb_private::ArchSpec::eMIPSAse_mips16, lldb_private::ArchSpec::eRISCV_float_abi_double, lldb_private::ArchSpec::eRISCV_float_abi_quad, lldb_private::ArchSpec::eRISCV_float_abi_single, lldb_private::ArchSpec::eRISCV_rvc, lldb_private::ArchSpec::eRISCV_rve, error(), lldb_private::DataExtractor::GetCStr(), lldb_private::ArchSpec::GetFlags(), lldb_private::GetLog(), lldb_private::ArchSpec::GetMachine(), GetOsFromOSABI(), lldb_private::ArchSpec::GetTriple(), lldb_private::DataExtractor::GetU32(), lldb_private::DataExtractor::GetU8(), lldb_private::ArchSpec::IsMIPS(), LLDB_LOGF, lldb_private::Modules, ParseARMAttributes(), lldb_private::DataExtractor::PeekCStr(), RefineModuleDetailsFromNote(), lldb_private::ArchSpec::SetArchitecture(), lldb_private::DataExtractor::SetData(), lldb_private::ArchSpec::SetFlags(), elf::ELFSectionHeader::sh_offset, elf::ELFSectionHeader::sh_size, elf::ELFSectionHeader::sh_type, subTypeFromElfHeader(), and UNUSED_IF_ASSERT_DISABLED.

Referenced by GetModuleSpecifications(), and ParseSectionHeaders().

GetSectionHeaderStringTable()

size_t ObjectFileELF::GetSectionHeaderStringTable ( )

private

Loads the section name string table into m_shstr_data.

Returns the number of bytes constituting the table.

GetSectionIndexByName()

lldb::user_id_t ObjectFileELF::GetSectionIndexByName ( const char * name )

private

Utility method for looking up a section given its name.

Returns the index of the corresponding section or zero if no section with the given name can be found (note that section indices are always 1 based, and so section index 0 is never valid).

Definition at line 1646 of file ObjectFileELF.cpp.

References m_section_headers, and ParseSectionHeaders().

Referenced by ParseTrampolineSymbols().

GetSectionType()

SectionType ObjectFileELF::GetSectionType ( const ELFSectionHeaderInfo & H ) const

private

Definition at line 1674 of file ObjectFileELF.cpp.

References lldb::eSectionTypeCode, lldb::eSectionTypeELFDynamicLinkInfo, lldb::eSectionTypeELFDynamicSymbols, lldb::eSectionTypeELFRelocationEntries, lldb::eSectionTypeELFSymbolTable, lldb::eSectionTypeZeroFill, GetSectionTypeFromName(), lldb_private::ConstString::GetStringRef(), ObjectFileELF::ELFSectionHeaderInfo::section_name, elf::ELFSectionHeader::sh_flags, and elf::ELFSectionHeader::sh_type.

Referenced by CreateSections().

GetSegmentData()

DataExtractor ObjectFileELF::GetSegmentData

(

const elf::ELFProgramHeader &

H

)

Definition at line 3796 of file ObjectFileELF.cpp.

References GetAddressByteSize(), GetBaseAddress(), GetByteOrder(), lldb_private::DataExtractor::GetByteSize(), lldb_private::Address::GetFileAddress(), lldb_private::ObjectFile::IsInMemory(), lldb_private::ObjectFile::m_data, lldb_private::ObjectFile::m_memory_addr, lldb_private::ObjectFile::m_process_wp, elf::ELFProgramHeader::p_filesz, elf::ELFProgramHeader::p_memsz, elf::ELFProgramHeader::p_offset, elf::ELFProgramHeader::p_vaddr, and lldb_private::ObjectFile::ReadMemory().

Referenced by ProcessElfCore::DoLoadCore(), GetDynamicData(), and GetLoadableData().

GetUUID()

UUID ObjectFileELF::GetUUID ( )

overridevirtual

Gets the UUID for this object file.

If the object file format contains a UUID, the value should be returned. Else ObjectFile instances should return the MD5 checksum of all of the bytes for the object file (or memory for memory based object files).

Returns

The object file's UUID. In case of an error, an empty UUID is returned.

Implements lldb_private::ObjectFile.

Definition at line 828 of file ObjectFileELF.cpp.

References calc_crc32(), CalculateELFNotesSegmentsCRC32(), lldb_private::ObjectFile::eTypeCoreFile, g_core_uuid_magic, lldb_private::ObjectFile::GetType(), lldb_private::ObjectFile::m_data, m_gnu_debuglink_crc, m_program_headers, m_uuid, ParseProgramHeaders(), and ParseSectionHeaders().

Referenced by SymbolVendorELF::CreateInstance().

Initialize()

void ObjectFileELF::Initialize ( )

static

Definition at line 356 of file ObjectFileELF.cpp.

References CreateInstance(), CreateMemoryInstance(), GetModuleSpecifications(), GetPluginDescriptionStatic(), GetPluginNameStatic(), and lldb_private::PluginManager::RegisterPlugin().

isA()

bool ObjectFileELF::isA ( const void * ClassID ) const

inlineoverridevirtual

Reimplemented from lldb_private::ObjectFile.

Definition at line 95 of file ObjectFileELF.h.

References ID.

IsExecutable()

bool ObjectFileELF::IsExecutable ( ) const

overridevirtual

Tells whether this object file is capable of being the main executable for a process.

Returns

true if it is, false otherwise.

Implements lldb_private::ObjectFile.

Definition at line 712 of file ObjectFileELF.cpp.

References m_header.

Referenced by GetEntryPointAddress().

IsStripped()

bool ObjectFileELF::IsStripped ( )

overridevirtual

Detect if this object file has been stripped of local symbols.

Detect if this object file has been stripped of local symbols.

Returns

Return true if the object file has been stripped of local symbols.

Implements lldb_private::ObjectFile.

Definition at line 3225 of file ObjectFileELF.cpp.

MagicBytesMatch()

bool ObjectFileELF::MagicBytesMatch ( lldb::DataBufferSP & data_sp, lldb::addr_t offset, lldb::addr_t length )

static

Definition at line 455 of file ObjectFileELF.cpp.

References elf::ELFHeader::MagicBytesMatch().

Referenced by GetModuleSpecifications().

MapFileDataWritable()

lldb::WritableDataBufferSP ObjectFileELF::MapFileDataWritable ( const lldb_private::FileSpec & file, uint64_t Size, uint64_t Offset )

staticprotected

Definition at line 3849 of file ObjectFileELF.cpp.

References lldb_private::FileSystem::CreateWritableDataBuffer(), lldb_private::FileSpec::GetPath(), and lldb_private::FileSystem::Instance().

Referenced by CreateInstance().

ParseARMAttributes()

void ObjectFileELF::ParseARMAttributes ( lldb_private::DataExtractor & data, uint64_t length, lldb_private::ArchSpec & arch_spec )

staticprivate

Definition at line 1287 of file ObjectFileELF.cpp.

References lldb_private::ArchSpec::eARM_abi_hard_float, lldb_private::ArchSpec::eARM_abi_soft_float, lldb_private::DataExtractor::GetCStr(), lldb_private::ArchSpec::GetTriple(), lldb_private::DataExtractor::GetU32(), lldb_private::DataExtractor::GetU8(), lldb_private::DataExtractor::GetULEB128(), and lldb_private::ArchSpec::SetFlags().

Referenced by GetSectionHeaderInfo().

ParseDependentModules()

size_t ObjectFileELF::ParseDependentModules ( )

private

Scans the dynamic section and locates all dependent modules (shared libraries) populating m_filespec_up.

This method will compute the dependent module list only once. Returns the number of dependent modules parsed.

Definition at line 983 of file ObjectFileELF.cpp.

References lldb_private::FileSystem::Instance(), m_dynamic_symbols, m_filespec_up, ParseDynamicSymbols(), and lldb_private::FileSystem::Resolve().

Referenced by DumpDependentModules(), and GetDependentModules().

ParseDynamicSymbols()

size_t ObjectFileELF::ParseDynamicSymbols ( )

private

Parses the dynamic symbol table and populates m_dynamic_symbols.

The vector retains the order as found in the object file. Returns the number of dynamic symbols parsed.

Definition at line 2475 of file ObjectFileELF.cpp.

References elf::ELFDynamic::d_tag, GetDynamicData(), GetDynstrData(), m_dynamic_symbols, elf::ELFDynamic::Parse(), and ObjectFileELF::ELFDynamicWithName::symbol.

Referenced by DumpELFDynamic(), FindDynamicSymbol(), GetImageInfoAddress(), and ParseDependentModules().

ParseHeader()

bool ObjectFileELF::ParseHeader ( )

overridevirtual

Attempts to parse the object header.

This function is used as a test to see if a given plug-in instance can parse the header data already contained in ObjectFile::m_data. If an object file parser does not recognize that magic bytes in a header, false should be returned and the next plug-in can attempt to parse an object file.

Returns

Returns true if the header was parsed successfully, false otherwise.

Implements lldb_private::ObjectFile.

Definition at line 823 of file ObjectFileELF.cpp.

References lldb_private::ObjectFile::m_data, and m_header.

Referenced by GetArchitecture(), and GetEntryPointAddress().

ParseProgramHeaders()

bool ObjectFileELF::ParseProgramHeaders ( )

private

Parses all section headers present in this object file and populates m_program_headers.

This method will compute the header list only once. Returns true iff the headers have been successfully parsed.

Definition at line 1039 of file ObjectFileELF.cpp.

References GetProgramHeaderInfo(), lldb_private::ObjectFile::m_data, m_header, and m_program_headers.

Referenced by DumpELFProgramHeaders(), GetUUID(), and ProgramHeaders().

ParseSectionHeaders()

size_t ObjectFileELF::ParseSectionHeaders ( )

private

Parses all section headers present in this object file and populates m_section_headers.

This method will compute the header list only once. Returns the number of headers parsed.

Definition at line 1629 of file ObjectFileELF.cpp.

References GetSectionHeaderInfo(), m_arch_spec, lldb_private::ObjectFile::m_data, m_gnu_debuglink_crc, m_gnu_debuglink_file, m_header, m_section_headers, and m_uuid.

Referenced by CreateSections(), DumpELFSectionHeaders(), GetArchitecture(), GetSectionHeaderByIndex(), GetSectionIndexByName(), and GetUUID().

ParseSymbols()

std::pair< unsigned, ObjectFileELF::FileAddressToAddressClassMap > ObjectFileELF::ParseSymbols ( lldb_private::Symtab * symbol_table, lldb::user_id_t start_id, lldb_private::SectionList * section_list, const size_t num_symbols, const lldb_private::DataExtractor & symtab_data, const lldb_private::DataExtractor & strtab_data )

private

Helper routine for ParseSymbolTable().

Definition at line 2059 of file ObjectFileELF.cpp.

References lldb_private::Symtab::AddSymbol(), CalculateType(), lldb_private::eCode, lldb_private::eCodeAlternateISA, lldb_private::eData, lldb::eSymbolTypeAbsolute, lldb::eSymbolTypeCode, lldb::eSymbolTypeData, lldb::eSymbolTypeInvalid, lldb::eSymbolTypeResolver, lldb::eSymbolTypeSourceFile, lldb::eSymbolTypeTrampoline, lldb::eSymbolTypeUndefined, lldb_private::ObjectFile::eTypeObjectFile, lldb_private::eUnknown, FindArmAarch64MappingSymbol(), FindMatchingSection(), FindRISCVMappingSymbol(), lldb_private::SectionList::FindSectionByID(), GetArchitecture(), elf::ELFSymbol::getBinding(), lldb_private::Mangled::GetDemangledName(), lldb_private::ArchSpec::GetMachine(), lldb_private::Mangled::GetMangledName(), lldb_private::ModuleChild::GetModule(), lldb_private::Mangled::GetName(), lldb_private::ConstString::GetStringRef(), lldb_private::ArchSpec::GetTriple(), elf::ELFSymbol::getType(), IS_MICROMIPS, lldb_private::ArchSpec::IsMIPS(), lldb_private::ArchSpec::IsValid(), m_address_class_map, lldb_private::ObjectFile::m_file, elf::ELFSymbol::Parse(), lldb_private::DataExtractor::PeekCStr(), lldb_private::Mangled::SetDemangledName(), lldb_private::Symbol::SetIsWeak(), lldb_private::Mangled::SetMangledName(), elf::ELFSymbol::st_info, elf::ELFSymbol::st_name, elf::ELFSymbol::st_other, elf::ELFSymbol::st_shndx, elf::ELFSymbol::st_size, and elf::ELFSymbol::st_value.

Referenced by ParseSymbolTable(), and ParseSymtab().

ParseSymbolTable()

std::pair< unsigned, ObjectFileELF::FileAddressToAddressClassMap > ObjectFileELF::ParseSymbolTable ( lldb_private::Symtab * symbol_table, lldb::user_id_t start_id, lldb_private::Section * symtab )

private

Populates the symbol table with all non-dynamic linker symbols.

This method will parse the symbols only once. Returns the number of symbols parsed and a map of address types (used by targets like Arm that have an alternative ISA mode like Thumb).

Definition at line 2426 of file ObjectFileELF.cpp.

References lldb_private::SectionList::FindSectionByID(), lldb_private::DataExtractor::GetByteSize(), lldb_private::UserID::GetID(), lldb_private::Section::GetObjectFile(), GetSectionHeaderByIndex(), m_address_class_map, lldb_private::ObjectFile::m_sections_up, ObjectFileELF(), ParseSymbols(), ParseSymbolTable(), ReadSectionData(), elf::ELFSectionHeader::sh_entsize, elf::ELFSectionHeader::sh_link, and elf::ELFSectionHeader::sh_type.

Referenced by ParseSymbolTable(), and ParseSymtab().

ParseSymtab()

void ObjectFileELF::ParseSymtab ( lldb_private::Symtab & symtab )

overridevirtual

Parse the symbol table into the provides symbol table object.

Symbol table parsing will be done once when this function is called by each object file plugin. All of the necessary locks will already be acquired before this function is called and the symbol table object to populate is supplied as an argument and doesn't need to be created by each plug-in.

Parameters

The	symbol table to populate.

Implements lldb_private::ObjectFile.

Definition at line 2980 of file ObjectFileELF.cpp.

References lldb_private::Symtab::AddSymbol(), CalculateType(), elf::ELFDynamic::d_ptr, lldb_private::eCode, lldb_private::eCodeAlternateISA, elapsed(), lldb::eSectionTypeELFDynamicSymbols, lldb::eSectionTypeELFSymbolTable, lldb::eSymbolTypeCode, lldb_private::ObjectFile::eTypeExecutable, FindDynamicSymbol(), lldb_private::SectionList::FindSectionByType(), lldb_private::SectionList::FindSectionContainingFileAddress(), lldb_private::Symtab::FindSymbolContainingFileAddress(), lldb_private::Symbol::GetAddressRef(), GetArchitecture(), GetDynstrData(), GetDynsymDataFromDynamic(), GetEntryPointAddress(), lldb_private::UserID::GetID(), lldb_private::ArchSpec::GetMachine(), lldb_private::ModuleChild::GetModule(), lldb_private::Symtab::GetNumSymbols(), GetSectionHeaderByIndex(), lldb_private::ObjectFile::GetSectionList(), m_address_class_map, lldb_private::ObjectFile::m_file, lldb_private::ObjectFile::ObjectFile(), ParseSymbols(), ParseSymbolTable(), lldb_private::ObjectFile::ParseSymtab(), ParseTrampolineSymbols(), ParseUnwindSymbols(), and lldb_private::Address::SetOffset().

ParseTrampolineSymbols()

unsigned ObjectFileELF::ParseTrampolineSymbols ( lldb_private::Symtab * symbol_table, lldb::user_id_t start_id, const ELFSectionHeaderInfo * rela_hdr, lldb::user_id_t section_id )

private

Scans the relocation entries and adds a set of artificial symbols to the given symbol table for each PLT slot.

Returns the number of symbols added.

Definition at line 2640 of file ObjectFileELF.cpp.

References lldb_private::SectionList::FindSectionByID(), GetSectionHeaderByIndex(), GetSectionIndexByName(), m_header, lldb_private::ObjectFile::m_sections_up, ParsePLTRelocations(), PLTRelocationType(), ReadSectionData(), elf::ELFSectionHeader::sh_link, and elf::ELFSectionHeader::sh_type.

Referenced by ParseSymtab().

ParseUnwindSymbols()

void ObjectFileELF::ParseUnwindSymbols ( lldb_private::Symtab * symbol_table, lldb_private::DWARFCallFrameInfo * eh_frame )

private

Definition at line 3168 of file ObjectFileELF.cpp.

References lldb_private::Symtab::AddSymbol(), lldb::eSymbolTypeCode, lldb_private::SectionList::FindSectionContainingFileAddress(), lldb_private::Symtab::FindSymbolAtFileAddress(), lldb_private::DWARFCallFrameInfo::ForEachFDEEntries(), lldb_private::Symbol::GetByteSizeIsValid(), lldb_private::Symbol::GetID(), lldb_private::Symtab::GetNumSymbols(), lldb_private::ObjectFile::GetSectionList(), lldb_private::Symbol::SetByteSize(), lldb_private::Symbol::SetSizeIsSynthesized(), and lldb_private::Symtab::SymbolAtIndex().

Referenced by ParseSymtab().

PLTRelocationType()

unsigned ObjectFileELF::PLTRelocationType ( )

private

Definition at line 2523 of file ObjectFileELF.cpp.

References elf::ELFDynamic::d_val, and FindDynamicSymbol().

Referenced by ParseTrampolineSymbols().

ProgramHeaders()

llvm::ArrayRef< ELFProgramHeader > ObjectFileELF::ProgramHeaders

(

)

Definition at line 3791 of file ObjectFileELF.cpp.

References m_program_headers, and ParseProgramHeaders().

Referenced by AnySegmentHasPhysicalAddress(), CreateSections(), ProcessElfCore::DoLoadCore(), GetArchitecture(), GetBaseAddress(), GetDynamicData(), and GetLoadableData().

ReadDataFromDynamic()

std::optional< DataExtractor > ObjectFileELF::ReadDataFromDynamic ( const elf::ELFDynamic * dyn, uint64_t length, uint64_t offset = 0 )

private

Read the bytes pointed to by the dyn dynamic entry.

ELFDynamic::d_ptr values contain file addresses if we load the ELF file form a file on disk, or they contain load addresses if they were read from memory. This function will correctly extract the data in both cases if it is available.

Parameters

[in]	dyn	The dynamic entry to use to fetch the data from.
[in]	length	The number of bytes to read.
[in]	offset	The number of bytes to skip after the d_ptr value before reading data.

Returns

The bytes that represent the dynanic entries data or std::nullopt if an error occured or the data is not available.

Definition at line 3856 of file ObjectFileELF.cpp.

References elf::ELFDynamic::d_ptr, GetAddressByteSize(), GetByteOrder(), lldb_private::Address::GetSection(), lldb_private::ObjectFile::GetSectionList(), lldb_private::ObjectFile::m_process_wp, lldb_private::ObjectFile::ReadMemory(), and lldb_private::Address::ResolveAddressUsingFileSections().

Referenced by GetDynstrData(), GetDynsymDataFromDynamic(), GetNumSymbolsFromDynamicGnuHash(), and GetNumSymbolsFromDynamicHash().

ReadSectionData() [1/2]

size_t ObjectFileELF::ReadSectionData ( lldb_private::Section * section, lldb::offset_t section_offset, void * dst, size_t dst_len )

overridevirtual

Reimplemented from lldb_private::ObjectFile.

Definition at line 3734 of file ObjectFileELF.cpp.

References lldb_private::DataExtractor::CopyData(), lldb_private::Section::GetObjectFile(), lldb_private::ObjectFile::ReadSectionData(), ReadSectionData(), and lldb_private::Flags::Test().

Referenced by CalculateStrata(), GetDynamicData(), GetDynstrData(), ParseSymbolTable(), ParseTrampolineSymbols(), and ReadSectionData().

ReadSectionData() [2/2]

size_t ObjectFileELF::ReadSectionData ( lldb_private::Section * section, lldb_private::DataExtractor & section_data )

overridevirtual

Reimplemented from lldb_private::ObjectFile.

Definition at line 3752 of file ObjectFileELF.cpp.

References lldb_private::DataExtractor::Clear(), lldb::eByteOrderLittle, error(), lldb_private::Flags::Get(), GetAddressByteSize(), GetByteOrder(), lldb_private::ConstString::GetCString(), lldb_private::ModuleChild::GetModule(), lldb_private::Section::GetName(), lldb_private::Section::GetObjectFile(), lldb_private::ConstString::GetStringRef(), lldb_private::ObjectFile::ReadSectionData(), and lldb_private::DataExtractor::SetData().

RefineModuleDetailsFromNote()

lldb_private::Status ObjectFileELF::RefineModuleDetailsFromNote ( lldb_private::DataExtractor & data, lldb_private::ArchSpec & arch_spec, lldb_private::UUID & uuid )

staticprivate

Definition at line 1044 of file ObjectFileELF.cpp.

References error(), lldb_private::Status::FromErrorString(), lldb_private::Status::FromErrorStringWithFormat(), lldb_private::DataExtractor::GetAddress(), lldb_private::DataExtractor::GetAddressByteSize(), lldb_private::DataExtractor::GetCStr(), lldb_private::GetLog(), lldb_private::ArchSpec::GetTriple(), lldb_private::DataExtractor::GetU32(), lldb_private::ArchSpec::IsMIPS(), lldb_private::UUID::IsValid(), LLDB_LOGF, LLDB_NT_FREEBSD_ABI_SIZE, LLDB_NT_FREEBSD_ABI_TAG, LLDB_NT_GNU_ABI_OS_HURD, LLDB_NT_GNU_ABI_OS_LINUX, LLDB_NT_GNU_ABI_OS_SOLARIS, LLDB_NT_GNU_ABI_SIZE, LLDB_NT_GNU_ABI_TAG, LLDB_NT_GNU_BUILD_ID_TAG, LLDB_NT_NETBSD_IDENT_DESCSZ, LLDB_NT_NETBSD_IDENT_NAMESZ, LLDB_NT_NETBSD_IDENT_TAG, LLDB_NT_NETBSD_PROCINFO, LLDB_NT_OWNER_ANDROID, LLDB_NT_OWNER_CORE, LLDB_NT_OWNER_FREEBSD, LLDB_NT_OWNER_GNU, LLDB_NT_OWNER_LINUX, LLDB_NT_OWNER_NETBSD, LLDB_NT_OWNER_NETBSDCORE, LLDB_NT_OWNER_OPENBSD, lldb_private::Modules, note(), and lldb_private::DataExtractor::PeekData().

Referenced by GetArchitecture(), and GetSectionHeaderInfo().

RelocateDebugSections()

unsigned ObjectFileELF::RelocateDebugSections ( const elf::ELFSectionHeader * rel_hdr, lldb::user_id_t rel_id, lldb_private::Symtab * thetab )

private

Relocates debug sections.

Definition at line 2933 of file ObjectFileELF.cpp.

References ApplyRelocations(), lldb_private::SectionList::FindSectionByID(), lldb_private::ObjectFile::GetData(), lldb_private::Section::GetFileOffset(), lldb_private::Section::GetFileSize(), GetSectionHeaderByIndex(), lldb_private::ObjectFile::GetSectionList(), m_header, elf::ELFSectionHeader::sh_info, elf::ELFSectionHeader::sh_link, and elf::ELFSectionHeader::sh_type.

Referenced by RelocateSection().

RelocateSection()

void ObjectFileELF::RelocateSection ( lldb_private::Section * section )

overridevirtual

Perform relocations on the section if necessary.

Reimplemented from lldb_private::ObjectFile.

Definition at line 3127 of file ObjectFileELF.cpp.

References CalculateType(), lldb_private::ObjectFile::eTypeObjectFile, lldb_private::ConstString::GetCString(), lldb_private::Section::GetName(), lldb_private::ObjectFile::GetSymtab(), m_section_headers, RelocateDebugSections(), SectionIndex(), and lldb_private::Section::SetIsRelocated().

SectionIndex() [1/2]

size_t ObjectFileELF::SectionIndex ( const SectionHeaderCollConstIter & I ) const

private

Returns the index of the given section header.

Definition at line 819 of file ObjectFileELF.cpp.

References m_section_headers.

SectionIndex() [2/2]

size_t ObjectFileELF::SectionIndex ( const SectionHeaderCollIter & I )

private

Returns the index of the given section header.

Definition at line 815 of file ObjectFileELF.cpp.

References m_section_headers.

Referenced by CreateSections(), GetBaseAddress(), and RelocateSection().

SetLoadAddress()

bool ObjectFileELF::SetLoadAddress ( lldb_private::Target & target, lldb::addr_t value, bool value_is_offset )

overridevirtual

Sets the load address for an entire module, assuming a rigid slide of sections, if possible in the implementation.

Returns

Returns true iff any section's load address changed.

Reimplemented from lldb_private::ObjectFile.

Definition at line 716 of file ObjectFileELF.cpp.

References lldb::eSectionTypeAbsoluteAddress, lldb::eSectionTypeContainer, GetAddressByteSize(), GetBaseAddress(), lldb_private::Address::GetFileAddress(), lldb_private::ModuleChild::GetModule(), lldb_private::SectionList::GetSectionAtIndex(), lldb_private::ObjectFile::GetSectionList(), lldb_private::SectionList::GetSize(), LLDB_INVALID_ADDRESS, and lldb_private::Target::SetSectionLoadAddress().

StripLinkerSymbolAnnotations()

llvm::StringRef ObjectFileELF::StripLinkerSymbolAnnotations ( llvm::StringRef symbol_name ) const

overridevirtual

Reimplemented from lldb_private::ObjectFile.

Definition at line 1623 of file ObjectFileELF.cpp.

Terminate()

void ObjectFileELF::Terminate ( )

static

Definition at line 362 of file ObjectFileELF.cpp.

References CreateInstance(), and lldb_private::PluginManager::UnregisterPlugin().

Member Data Documentation

g_core_uuid_magic

const uint32_t ObjectFileELF::g_core_uuid_magic

staticprivate

Definition at line 202 of file ObjectFileELF.h.

Referenced by GetModuleSpecifications(), and GetUUID().

ID

char ObjectFileELF::ID

static

Definition at line 94 of file ObjectFileELF.h.

Referenced by classof(), and isA().

m_address_class_map

FileAddressToAddressClassMap ObjectFileELF::m_address_class_map

private

The address class for each symbol in the elf file.

Definition at line 242 of file ObjectFileELF.h.

Referenced by GetAddressClass(), ParseSymbols(), ParseSymbolTable(), and ParseSymtab().

m_arch_spec

lldb_private::ArchSpec ObjectFileELF::m_arch_spec

private

The architecture detected from parsing elf file contents.

Definition at line 239 of file ObjectFileELF.h.

Referenced by CreateSections(), GetArchitecture(), and ParseSectionHeaders().

m_dynamic_base_addr

lldb::addr_t ObjectFileELF::m_dynamic_base_addr = LLDB_INVALID_ADDRESS

private

The file address of the .dynamic section.

This can be found in the p_vaddr of the PT_DYNAMIC program header.

Definition at line 222 of file ObjectFileELF.h.

Referenced by GetDynamicData(), and GetImageInfoAddress().

m_dynamic_symbols

DynamicSymbolColl ObjectFileELF::m_dynamic_symbols

private

Collection of symbols from the dynamic table.

Definition at line 225 of file ObjectFileELF.h.

Referenced by DumpELFDynamic(), FindDynamicSymbol(), GetImageInfoAddress(), ParseDependentModules(), and ParseDynamicSymbols().

m_entry_point_address

lldb_private::Address ObjectFileELF::m_entry_point_address

private

Cached value of the entry point for this module.

Definition at line 236 of file ObjectFileELF.h.

Referenced by GetEntryPointAddress().

m_filespec_up

std::unique_ptr<lldb_private::FileSpecList> ObjectFileELF::m_filespec_up

mutableprivate

List of file specifications corresponding to the modules (shared libraries) on which this object file depends.

Definition at line 233 of file ObjectFileELF.h.

Referenced by DumpDependentModules(), GetDependentModules(), and ParseDependentModules().

m_gnu_debug_data_object_file

std::shared_ptr<ObjectFileELF> ObjectFileELF::m_gnu_debug_data_object_file

private

Object file parsed from .gnu_debugdata section (.

See also

GetGnuDebugDataObjectFile())

Definition at line 229 of file ObjectFileELF.h.

Referenced by GetGnuDebugDataObjectFile().

m_gnu_debuglink_crc

uint32_t ObjectFileELF::m_gnu_debuglink_crc = 0

private

Definition at line 212 of file ObjectFileELF.h.

Referenced by GetUUID(), and ParseSectionHeaders().

m_gnu_debuglink_file

std::string ObjectFileELF::m_gnu_debuglink_file

private

ELF .gnu_debuglink file and crc data if available.

Definition at line 211 of file ObjectFileELF.h.

Referenced by GetDebugLink(), and ParseSectionHeaders().

m_header

elf::ELFHeader ObjectFileELF::m_header

private

ELF file header.

Definition at line 205 of file ObjectFileELF.h.

Referenced by CalculateStrata(), CalculateType(), Dump(), DumpELFDynamic(), GetByteOrder(), GetEntryPointAddress(), IsExecutable(), ParseHeader(), ParseProgramHeaders(), ParseSectionHeaders(), ParseTrampolineSymbols(), and RelocateDebugSections().

m_plugin_version

const uint32_t ObjectFileELF::m_plugin_version = 1

staticprivate

Version of this reader common to all plugins based on this class.

Definition at line 201 of file ObjectFileELF.h.

m_program_headers

ProgramHeaderColl ObjectFileELF::m_program_headers

private

Collection of program headers.

Definition at line 215 of file ObjectFileELF.h.

Referenced by DumpELFProgramHeaders(), GetUUID(), ParseProgramHeaders(), and ProgramHeaders().

m_section_headers

SectionHeaderColl ObjectFileELF::m_section_headers

private

Collection of section headers.

Definition at line 218 of file ObjectFileELF.h.

Referenced by CreateSections(), DumpELFSectionHeaders(), GetArchitecture(), GetBaseAddress(), GetSectionHeaderByIndex(), GetSectionIndexByName(), ParseSectionHeaders(), RelocateSection(), SectionIndex(), and SectionIndex().

m_uuid

lldb_private::UUID ObjectFileELF::m_uuid

private

ELF build ID.

Definition at line 208 of file ObjectFileELF.h.

Referenced by GetUUID(), and ParseSectionHeaders().

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The documentation for this class was generated from the following files:

• ObjectFileELF.h
• ObjectFileELF.cpp