Represents a single 16-bit or 32-bit opcode that encodes relocations. More...

#include <pefexe.h>

Public Types
enum	opcode_type { SmInvalid = -1 , BySectDWithSkip = 0x0000 , BySectC = 0x4000 , BySectD = 0x4200 , TVector12 = 0x4400 , TVector8 = 0x4600 , VTable8 = 0x4800 , ImportRun = 0x4A00 , SmByImport = 0x6000 , SmSetSectC = 0x6200 , SmSetSectD = 0x6400 , SmBySection = 0x6600 , IncrPosition = 0x8000 , SmRepeat = 0x9000 , SetPosition = 0xA000 , LgByImport = 0xA400 , LgRepeat = 0xB000 , LgBySection = 0xB400 , LgSetSectC = 0xB440 , LgSetSectD = 0xB480 }

Public Member Functions
	RelocOpcode (opcode_type opcode=SmInvalid)

	RelocOpcode (opcode_type opcode, uint32_t value, uint32_t repeat)

void	ReadFile (Linker::Reader &rd)
	Reads and initializes a single relocation opcode record.

uint32_t	GetWord () const
	Returns the bit sequence that this opcode is stored as in the file.

offset_t	CodeSize () const
	Returns the number of bytes required to encode this opcode.

void	WriteFile (Linker::Writer &wr)
	Outputs a single relocation opcode to the file.

void	GenerateRelocations (RelocationProcessor &processor) const
	Executes the opcode to possibly produce some relocation information and/or alter the state of the pseudo-microprocessor.

void	Dump (Dumper::Dumper &dump, const PEFFormat &pef_format, uint32_t opcode_index, int display_options=0) const

Public Attributes
uint32_t	offset = 0
	Offset of opcode within file (only used for dumping)

opcode_type	opcode = SmInvalid
	Opcode type.

uint32_t	value = 0
	A value parameter.

uint32_t	repeat = 0
	A repetition parameter.

Detailed Description

Represents a single 16-bit or 32-bit opcode that encodes relocations.

Member Function Documentation

◆ GetWord()

uint32_t PEFFormat::RelocOpcode::GetWord ( ) const

Returns the bit sequence that this opcode is stored as in the file.

For 16-bit instructions, the value is stored as a zero extended value in the least significant bits, for 32-bit instructions, it takes up the entire word.

Member Data Documentation

◆ repeat

uint32_t Apple::PEFFormat::RelocOpcode::repeat = 0

A repetition parameter.

Depending on the type of the operation, this may encode a run_length (BySectDWithSkip, BySecton, TVector, VTable8, ImportRun) or a repetition count (Repeat)

◆ value

uint32_t Apple::PEFFormat::RelocOpcode::value = 0

A value parameter.

Depending on the type of the operation, this may encode a byte skip value (BySectDWithSkip), an offset value (IncrPosition, SetPosition), a section or symbol index (ByImport, SetSect, BySection) or the size of the block to repeat in 16-bit halfwords (Repeat)

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

src/format/pefexe.h
src/format/pefexe.cc

Public Types