A helper class to collect sections into segments. More...

#include <linker.h>

Inheritance diagram for Linker::LinkerManager:

Public Member Functions
void	ClearLinkerManager ()

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

bool	SetLinkerParameter (std::map< std::string, std::string > &options, std::string key)
	Sets a single linker parameter, if inside options.

bool	SetLinkerParameter (std::map< std::string, std::string > &options, std::string key, std::string variable)
	Sets a single linker parameter, if inside options.

std::unique_ptr< Script::List >	GetScript (Linker::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	OnNewSegment (std::shared_ptr< Segment > segment)
	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::shared_ptr< Segment >	AppendSegment (std::string name)
	Terminates the current segment (if there is one), creates a new segment and attaches it 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 Attributes
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.

Protected Attributes
offset_t	current_address = 0
	Holds the current address value when there is no current_segment.

bool	current_is_template = false

bool	current_is_template_head = false

offset_t	template_counter = 0

std::string	current_template_name

Detailed Description

A helper class to collect sections into segments.

Member Function Documentation

◆ AppendSegment()

std::shared_ptr< Segment > LinkerManager::AppendSegment ( std::string name )

Terminates the current segment (if there is one), creates a new segment and attaches it to the image.

Parameters

name	The name of the new segment

◆ OnNewSegment()

void LinkerManager::OnNewSegment ( std::shared_ptr< Segment > segment )

virtual

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 in Binary::PRLFormat, Binary::UZI280Format, AOut::AOutFormat, Binary::GenericBinaryFormat, COFF::COFFFormat, DigitalResearch::CPM68KFormat, X68000::HUFormat, Amiga::HunkFormat, Microsoft::LEFormat, Apple::ResourceFork, MINIX::MINIXFormat, Microsoft::MZFormat, PharLap::MPFormat, and PharLap::P3Format::Flat.

Member Data Documentation

◆ current_base

offset_t Linker::LinkerManager::current_base = 0

The base address of the current section.

By default, sections within a segment are assumed to have the same segment base. This variable stores the segment base, as valid for the currently processed section.

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

src/linker/linker.h
src/linker/linker.cc

Public Member Functions