PowerPC Classic Mac OS "PEF" file format. More...

#include <pefexe.h>

Inheritance diagram for Apple::PEFFormat:

Classes
struct	ExportedSymbol

struct	HashTableEntry

class	ImportedLibrary

class	ImportedSymbol

class	Name
	Represents a string stored in the loader section string table. More...

class	PatternInitialization
	Pattern initialization data. More...

struct	Reference
	Represents a reference to some data, stored as an offset into a section pair. More...

class	Relocation
	Represents a single relocated 32-bit word in memory. More...

class	RelocationProcessor
	A representation of a state machine that generates the actual relocations using the relocation data in a file. More...

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

class	Section

Public Types
enum	cpu_type { M68K = 0x6D36386B , PPC = 0x70777063 }

enum	symbol_class_type { Code = 0 , Data = 1 , TVect = 2 , TOC = 3 , Glue = 4 }

Public Member Functions
uint32_t	GetSectionNameTableOffset () const

std::shared_ptr< ImportedLibrary >	FetchImportLibrary (std::string name)

uint32_t	GetLibraryDescriptionsSize () const

uint32_t	GetSymbolTablesSize () const

uint32_t	GetRelocationHeadersSize () const

uint32_t	GetRelocationAreaSize () const

uint32_t	GetLoaderStringAreaSize () const

uint32_t	GetExportHashTableSize () const

uint32_t	GetExportKeyTableSize () const

uint32_t	GetExportSymbolTableSize () const

uint32_t	GetMinimumRelocInstrOffset () const

uint32_t	GetLoaderSectionSize () const

bool	FormatSupportsLibraries () const override
	Whether the format supports libraries.

bool	FormatSupportsResources () const override
	Whether the format supports resources.

void	ReadLoaderSection (Linker::Reader &rd)

void	WriteLoaderSection (Linker::Writer &wr) const

void	ReadFile (Linker::Reader &rd) override
	Loads file into memory.

void	CalculateValues () override
	Intermediate step between processing module and generating output file to set up headers and management sections It is expected that after a module is processed, additional steps are required to evaluate the final values of the fields.

offset_t	WriteFile (Linker::Writer &wr) const override
	Stores data in memory to file.

void	Dump (Dumper::Dumper &dump) const override
	Display file contents in a nice manner.

void	OnNewSegment (std::shared_ptr< Linker::Segment > segment) override
	Callback function when allocating a new segment When the linker script runs, it creates segments consecutively. Overriding this method permits the output format to handle the allocated segment.

std::unique_ptr< Script::List >	GetScript (Linker::Module &module)

void	Link (Linker::Module &module)

void	SortImports ()

void	ProcessRelocations (Linker::Module &module)

void	ProcessModule (Linker::Module &module) override
	Processes the module object and initializes format fields.

void	GenerateFile (std::string filename, Linker::Module &module) override
	The main function that handles processing, calculating and generating the final image.

Public Member Functions inherited from Linker::SegmentManager
void	ClearSegmentManager ()

void	SetLinkScript (std::string script_file, std::map< std::string, std::string > &options) override
	Sets up the linker script and linker parameters.

std::unique_ptr< Script::List >	GetScript (Module &module)
	Compiles the linker script into an internal format.

offset_t	GetCurrentAddress () const
	Retrieves current address pointer.

void	SetCurrentAddress (offset_t address)
	Moves the current address pointer further, and if the current segment already contains data, fill it up to the point.

void	AlignCurrentAddress (offset_t align)
	Aligns current address to alignment, using SetCurrentAddress.

void	SetLatestBase (offset_t address)
	Sets the base of the current section (the value from which offsets are counted from)

void	FinishCurrentSegment ()
	Closes the current segment, sets current_segment to null.

virtual void	OnCallDirective (std::string identifier)
	Callback function for the CALL directive.

std::shared_ptr< Segment >	AppendSegment (std::string name)
	Creates a new segment and attaches it to the image.

void	AppendSegment (std::shared_ptr< Segment > segment)
	Attaches the segment to the image.

std::shared_ptr< Segment >	FetchSegment (std::string name)
	Attempts to fetch a segment, returns null if not found.

void	AppendSection (std::shared_ptr< Section > section)
	Adds a new section to the current segment, sets the base to the same as the segment.

void	ProcessScript (std::unique_ptr< Script::List > &directives, Module &module)
	Executes a parsed linker script on a module and collects segments The function OnNewSegment can be defined to handle each newly allocated segment.

void	ProcessAction (std::unique_ptr< Script::Node > &action, Module &module)

void	PostProcessAction (std::unique_ptr< Script::Node > &action, Module &module)

void	ProcessCommand (std::unique_ptr< Script::Node > &command, Module &module)

bool	CheckPredicate (std::unique_ptr< Script::Node > &predicate, std::shared_ptr< Section > section, Module &module)

offset_t	EvaluateExpression (std::unique_ptr< Script::Node > &expression, Module &module)

Public Member Functions inherited from Linker::OutputFormat
virtual bool	AddSupplementaryOutputFormat (std::string subformat)
	If the output format actually drives multiple output formats (resource file, apple double, etc.), specify multiple types, return false if unknown.

virtual std::vector< OptionDescription< void > >	GetMemoryModelNames ()
	Returns a list of the supported memory models, used for documentation.

virtual std::vector< OptionDescription< void > * >	GetLinkerScriptParameterNames ()
	Returns a list of the parameters used in the linker scripts, used for documentation.

virtual std::vector< OptionDescription< void > >	GetSpecialSymbolNames ()
	Returns a list of special symbol names recognized by the format, used for documentation.

virtual std::shared_ptr< OptionCollector >	GetOptions ()
	Returns object containing a sequence of option fields provided with the -S command line flag.

virtual void	SetOptions (std::map< std::string, std::string > &options)
	Passes command line parameters as settings over to format object.

std::optional< std::string >	FetchOption (std::map< std::string, std::string > &options, std::string name)
	Convenience method to look up option by name.

std::string	FetchOption (std::map< std::string, std::string > &options, std::string name, std::string default_value)
	Convenience method to look up option by name, returning default value if name is missing.

std::optional< offset_t >	FetchIntegerOption (std::map< std::string, std::string > &options, std::string name)
	Convenience method to look up option by name and convert it to integer.

virtual void	SetModel (std::string model)
	Sets the way memory is organized, typically modifying a built-in script.

virtual std::string	GetDefaultExtension (Module &module, std::string filename) const
	Appends a default extension to the filename.

virtual std::string	GetDefaultExtension (Module &module) const
	Provides a default filename for the output file.

virtual bool	FormatSupportsSegmentation () const
	Whether the format supports multiple segments.

virtual bool	FormatIs16bit () const
	Whether the format is 16-bit or not.

virtual bool	FormatIsProtectedMode () const
	Whether the format is in protected mode or not (x86 only)

virtual bool	FormatIsLinear () const
	Whether the address space is linear or segmented.

virtual unsigned	FormatAdditionalSectionFlags (std::string section_name) const

virtual void	AllocateSymbols (Module &module) const
	Instructs the module to allocate any unallocated local symbols.

Public Member Functions inherited from Linker::Format
	Format (offset_t file_offset=0)

virtual void	Clear ()
	Resets all fields to their default values, deallocate memory.

offset_t	ImageSize () const override
	Retrieves size of stored data.

offset_t	WriteFile (Writer &wr, offset_t count, offset_t offset=0) const override
	Writes data of non-zero filled sections.

Public Member Functions inherited from Linker::Contents
virtual std::shared_ptr< const Image >	AsImage () const
	Retrieves a randomly accessible image.

std::shared_ptr< Image >	AsImage ()
	Retrieves a randomly accessible image.

Static Public Member Functions
static constexpr bool	IsValidSymbolClass (int value)

static uint32_t	ComputeHashWord (std::string name)

static uint32_t	HashTableIndex (uint32_t hash_word, uint32_t export_hash_table_power)

static uint8_t	ComputeHashTableExponent (uint32_t hash_table_size)

Public Attributes
cpu_type	architecture = PPC

uint32_t	format_version = 1

uint32_t	date_time_stamp = 0

uint32_t	old_def_version = 0

uint32_t	old_imp_version = 0

uint32_t	current_version = 0

uint32_t	reserved = 0

uint16_t	inst_section_count = 0

std::vector< std::shared_ptr< Section > >	sections

std::vector< std::string >	section_name_table

uint32_t	section_name_table_end = 0

uint32_t	loader_section_offset = 0

Reference	main_symbol

Reference	init_symbol

Reference	term_symbol

std::vector< std::shared_ptr< ImportedLibrary > >	imported_libraries

std::map< std::string, std::shared_ptr< ImportedLibrary > >	named_imported_libraries

std::vector< std::shared_ptr< ImportedSymbol > >	imported_symbols

std::vector< uint32_t >	reloc_section_indexes

uint32_t	reloc_instr_offset = 0

uint32_t	loader_strings_offset = 0

uint32_t	export_hash_offset = 0

std::vector< RelocOpcode >	relocs_area

uint32_t	relocs_area_size = 0

std::vector< std::string >	loader_string_table

uint32_t	loader_string_table_size = 0

std::vector< HashTableEntry >	hash_table

std::vector< std::shared_ptr< ExportedSymbol > >	exported_symbols

std::map< std::shared_ptr< Linker::Segment >, std::shared_ptr< Section > >	segment_to_section_map

Public Attributes inherited from Linker::SegmentManager
offset_t	current_base = 0
	The base address of the current section.

std::vector< std::shared_ptr< Segment > >	segment_vector
	Ordered sequence of segments.

std::map< std::string, std::shared_ptr< Segment > >	segment_map
	Map of segments from their names.

std::shared_ptr< Segment >	current_segment
	Currently processed segment.

std::map< std::string, Location >	linker_parameters
	Parameters that permit customizing the linker script.

std::string	linker_script
	Contents of the linker script.

Public Attributes inherited from Linker::Format
offset_t	file_offset

Static Public Attributes
static constexpr uint32_t	ContainerHeaderSize = 40

static constexpr uint32_t	SectionHeaderSize = 28

static constexpr uint32_t	NoSection = uint32_t(-1)

static constexpr uint32_t	Absolute = uint32_t(-2)

static constexpr uint32_t	Reexported = uint32_t(-3)

static constexpr uint32_t	LoaderHeaderSize = 56

static constexpr uint32_t	LibraryDescriptionSize = 28

Additional Inherited Members
Protected Attributes inherited from Linker::SegmentManager
offset_t	current_address = 0
	Holds the current address value when there is no current_segment.

bool	current_is_template_head = false
	Set during evaluation of `guard` in a `for <guard> { <body> }` statement.

bool	current_is_template = false
	Set during evaluation of `body` in a `for <guard> { <body> }` statement.

offset_t	template_counter = 0
	Counts how many times a `for` statement has been invoked.

bool	condition_failed = false
	Condition to signal end of current `for` statement.

std::string	current_template_name
	Records the name of the currently generating segment for a `for` statement.

Detailed Description

PowerPC Classic Mac OS "PEF" file format.

Member Function Documentation

◆ CalculateValues()

void PEFFormat::CalculateValues ( )

overridevirtual

Intermediate step between processing module and generating output file to set up headers and management sections It is expected that after a module is processed, additional steps are required to evaluate the final values of the fields.

Reimplemented from Linker::OutputFormat.

◆ Dump()

void PEFFormat::Dump ( Dumper::Dumper & dump ) const

overridevirtual

Display file contents in a nice manner.

Reimplemented from Linker::Format.

◆ FormatSupportsLibraries()

bool PEFFormat::FormatSupportsLibraries ( ) const

overridevirtual

Whether the format supports libraries.

Reimplemented from Linker::OutputFormat.

◆ FormatSupportsResources()

bool PEFFormat::FormatSupportsResources ( ) const

overridevirtual

Whether the format supports resources.

Formats such as NE, LE/LX, PE and the Macintosh classic support including resources in the final binary. To simplify writing resources, the ELF parser permits incorporating them directly in the binary image as $$RSRC$_<type>$<id>.

Reimplemented from Linker::OutputFormat.

◆ GenerateFile()

void PEFFormat::GenerateFile	(	std::string	filename,
		Linker::Module &	module
	)

overridevirtual

The main function that handles processing, calculating and generating the final image.

Reimplemented from Linker::OutputFormat.

◆ OnNewSegment()

void PEFFormat::OnNewSegment ( std::shared_ptr< Linker::Segment > segment )

overridevirtual

Callback function when allocating a new segment When the linker script runs, it creates segments consecutively. Overriding this method permits the output format to handle the allocated segment.

Reimplemented from Linker::SegmentManager.

◆ ProcessModule()

void PEFFormat::ProcessModule ( Linker::Module & object )

overridevirtual

Processes the module object and initializes format fields.

Reimplemented from Linker::OutputFormat.

◆ ReadFile()

void PEFFormat::ReadFile ( Linker::Reader & rd )

overridevirtual

Loads file into memory.

Implements Linker::Format.

◆ WriteFile()

offset_t PEFFormat::WriteFile ( Linker::Writer & wr ) const

overridevirtual

Stores data in memory to file.

Implements Linker::Format.

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

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

Classes

Public Types

Public Member Functions

Static Public Member Functions

Public Attributes

Static Public Attributes

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ CalculateValues()

◆ Dump()

◆ FormatSupportsLibraries()

◆ FormatSupportsResources()

◆ GenerateFile()

◆ OnNewSegment()

◆ ProcessModule()

◆ ReadFile()

◆ WriteFile()