LIEF::MachO::RelocationFixup Class Reference

Class that represents a rebase relocation found in the LC_DYLD_CHAINED_FIXUPS command. More...

#include <RelocationFixup.hpp>

Inheritance diagram for LIEF::MachO::RelocationFixup:

Collaboration diagram for LIEF::MachO::RelocationFixup:

Public Member Functions
	RelocationFixup (DYLD_CHAINED_PTR_FORMAT fmt, uint64_t imagebase)
RelocationFixup &	operator= (const RelocationFixup &)
	RelocationFixup (const RelocationFixup &)
RelocationFixup &	operator= (RelocationFixup &&)
	RelocationFixup (RelocationFixup &&)
Relocation *	clone () const override
bool	is_pc_relative () const override
	Not relevant for this kind of relocation.
RELOCATION_ORIGINS	origin () const override
	Origin of the relocation. For this concrete object, it should be RELOCATION_ORIGINS::ORIGIN_CHAINED_FIXUPS.
DYLD_CHAINED_PTR_FORMAT	ptr_format () const
uint64_t	target () const
	The value that should be set at LIEF::Relocation::address if the imagebase is LIEF::Binary::imagebase. Otherwise, it should be: target() - LIEF::Binary::imagebase() + new_imagebase.
void	target (uint64_t target)
void	pc_relative (bool) override
	Not relevant for this kind of relocation.
uint32_t	offset () const
void	offset (uint32_t offset)
uint64_t	address () const override
	The address of this relocation is bound to its offset.
void	address (uint64_t address) override
	Changing the address means changing the offset.
void	accept (Visitor &visitor) const override
std::ostream &	print (std::ostream &os) const override
Public Member Functions inherited from LIEF::MachO::Relocation
	Relocation (uint64_t address, uint8_t type)
Relocation &	operator= (const Relocation &other)
	Relocation (const Relocation &other)
void	swap (Relocation &other)
virtual uint8_t	type () const
	Type of the relocation according to the Relocation::architecture and/or the Relocation::origin.
CPU_TYPES	architecture () const
	Achitecture targeted by this relocation.
bool	has_symbol () const
	true if the relocation has a symbol associated with
Symbol *	symbol ()
	Symbol associated with the relocation, if any, otherwise a nullptr.
const Symbol *	symbol () const
bool	has_section () const
	true if the relocation has a section associated with
Section *	section ()
	Section associated with the relocation, if any, otherwise a nullptr.
const Section *	section () const
bool	has_segment () const
	true if the relocation has a SegmentCommand associated with
SegmentCommand *	segment ()
	SegmentCommand associated with the relocation, if any, otherwise a nullptr.
const SegmentCommand *	segment () const
virtual void	type (uint8_t type)
Public Member Functions inherited from LIEF::Relocation
	Relocation (uint64_t address, uint8_t size)
	Constructor from a relocation's address and size.
Relocation &	operator= (const Relocation &)
	Relocation (const Relocation &)
void	swap (Relocation &other)
virtual size_t	size () const
	Relocation size in bits
virtual void	size (size_t size)
virtual bool	operator< (const Relocation &rhs) const
	Comparaison based on the Relocation's address
virtual bool	operator<= (const Relocation &rhs) const
	Comparaison based on the Relocation's address
virtual bool	operator> (const Relocation &rhs) const
	Comparaison based on the Relocation's address
virtual bool	operator>= (const Relocation &rhs) const
	Comparaison based on the Relocation's address
Public Member Functions inherited from LIEF::Object
	Object (const Object &other)
Object &	operator= (const Object &other)
template<class T >
output_t< T >	as ()
template<class T >
output_const_t< T >	as () const
virtual bool	operator== (const Object &other) const
virtual bool	operator!= (const Object &other) const

Static Public Member Functions
static bool	classof (const Relocation &r)

Additional Inherited Members
Public Types inherited from LIEF::Object
template<class T >
using	output_t = add_pointer_t<decay_t<T>>
template<class T >
using	output_const_t = add_pointer_t<add_const_t<decay_t<T>>>

Detailed Description

Class that represents a rebase relocation found in the LC_DYLD_CHAINED_FIXUPS command.

This class extends LIEF::Relocation in which LIEF::Relocation::address is set to the absolute virtual address where the relocation must take place (e.g. 0x10000d270).

On the other hand, RelocationFixup::target contains the value that should be set at LIEF::Relocation::address if the imagebase is LIEF::Binary::imagebase (e.g. 0x1000073a8).

If the Mach-O loader chooses another base address (like 0x7ff100000), it must set 0x10000d270 to 0x7ff1073a8.

Member Function Documentation

accept()

void LIEF::MachO::RelocationFixup::accept ( Visitor & visitor ) const

overridevirtual

Reimplemented from LIEF::MachO::Relocation.

address() [1/2]

uint64_t LIEF::MachO::RelocationFixup::address ( ) const

overridevirtual

The address of this relocation is bound to its offset.

Reimplemented from LIEF::Relocation.

address() [2/2]

void LIEF::MachO::RelocationFixup::address ( uint64_t address )

overridevirtual

Changing the address means changing the offset.

Reimplemented from LIEF::Relocation.

clone()

Relocation * LIEF::MachO::RelocationFixup::clone ( ) const

overridevirtual

Implements LIEF::MachO::Relocation.

is_pc_relative()

bool LIEF::MachO::RelocationFixup::is_pc_relative ( ) const

overridevirtual

Not relevant for this kind of relocation.

Implements LIEF::MachO::Relocation.

origin()

RELOCATION_ORIGINS LIEF::MachO::RelocationFixup::origin ( ) const

overridevirtual

Origin of the relocation. For this concrete object, it should be RELOCATION_ORIGINS::ORIGIN_CHAINED_FIXUPS.

Implements LIEF::MachO::Relocation.

pc_relative()

void LIEF::MachO::RelocationFixup::pc_relative ( bool )

overridevirtual

Not relevant for this kind of relocation.

Implements LIEF::MachO::Relocation.

print()

std::ostream & LIEF::MachO::RelocationFixup::print ( std::ostream & os ) const

overridevirtual

Reimplemented from LIEF::MachO::Relocation.

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

• RelocationFixup.hpp