RetroLinker
Linker for several 8-bit, 16-bit and 32-bit formats
Loading...
Searching...
No Matches
Classes | Public Types | Public Member Functions | List of all members
DX64::LVFormat Class Reference

CandyMan's DX64 "Flat" and "LV" executable formats. More...

#include <dosexe.h>

Inheritance diagram for DX64::LVFormat:
SeychellDOS32::AdamFormat Linker::SegmentManager Linker::OutputFormat Linker::Format Linker::Contents

Classes

class  LVOptionCollector
 

Public Types

enum  format_type { FORMAT_FLAT , FORMAT_LV }
 
- Public Types inherited from SeychellDOS32::AdamFormat
enum  format_type {
  FORMAT_UNSPECIFIED , FORMAT_33 , FORMAT_35 , FORMAT_DX64 ,
  FORMAT_LV_FLAT
}
 
enum  output_type { OUTPUT_EXE , OUTPUT_DLL }
 
enum  relocation_type { Selector16 , Offset32 }
 
enum  { FLAG_COMPRESSED = 0x0001 , FLAG_DISPLAY_LOGO = 0x0002 , FLAG_4MB_HEAP_LIMIT = 0x0004 }
 

Public Member Functions

 LVFormat (format_type type)
 
void SetSignature (format_type type)
 
void ReadFile (Linker::Reader &rd) override
 Loads file into memory.
 
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.
 
std::shared_ptr< Linker::OptionCollectorGetOptions () override
 Returns object containing a sequence of option fields provided with the -S command line flag.
 
void SetOptions (std::map< std::string, std::string > &options) override
 Passes command line parameters as settings over to format object.
 
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 SeychellDOS32::AdamFormat
 AdamFormat (format_type format=FORMAT_UNSPECIFIED, output_type output=OUTPUT_EXE)
 
constexpr bool IsV35 () const
 
constexpr bool IsDLL () const
 
void MakeApplication ()
 
void MakeLibrary ()
 
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.
 
bool FormatSupportsSegmentation () const override
 Whether the format supports multiple segments.
 
unsigned FormatAdditionalSectionFlags (std::string section_name) const override
 
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.
 
void CreateDefaultSegments ()
 Create the required segments, if they have not already been allocated. The Adam format uses a single segment.
 
std::unique_ptr< Script::ListGetScript (Linker::Module &module)
 
void Link (Linker::Module &module)
 Link application according to script or memory model.
 
void ProcessModule (Linker::Module &module) override
 Processes the module object and initializes format fields.
 
std::string GetDefaultExtension (Linker::Module &module, std::string filename) const override
 Appends a default extension to the filename.
 
- 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::ListGetScript (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< SegmentAppendSegment (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< SegmentFetchSegment (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.
 
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) const
 Provides a default filename for the output file.
 
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 bool FormatSupportsResources () const
 Whether the format supports resources.
 
virtual bool FormatSupportsLibraries () const
 Whether the format supports libraries.
 
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 ImageAsImage () const
 Retrieves a randomly accessible image.
 
std::shared_ptr< ImageAsImage ()
 Retrieves a randomly accessible image.
 

Additional Inherited Members

- Static Public Member Functions inherited from SeychellDOS32::AdamFormat
static uint32_t GetRelocationSize (uint32_t displacement, relocation_type type)
 
- Public Attributes inherited from SeychellDOS32::AdamFormat
format_type format
 
output_type output
 
std::array< char, 4 > signature
 
std::array< uint8_t, 2 > minimum_dos_version
 
std::array< uint8_t, 2 > dlink_version
 
uint32_t image_size = 0
 
uint32_t header_size = 0
 
uint32_t program_size = 0
 
uint32_t memory_size = 0
 
uint32_t contents_size = 0
 
uint32_t selector_relocation_count = 0
 
uint32_t offset_relocations_size = 0
 
uint32_t eip = 0
 
uint32_t esp = 0
 
std::vector< uint32_t > selector_relocations
 
std::vector< uint32_t > offset_relocations
 
std::map< uint32_t, relocation_type > relocations_map
 
uint32_t flags = 0
 
std::shared_ptr< Linker::Contentsimage
 
Microsoft::MZSimpleStubWriter stub
 
uint32_t stack_size = 0
 
- 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< Segmentcurrent_segment
 Currently processed segment.
 
std::map< std::string, Locationlinker_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
 
- 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

CandyMan's DX64 "Flat" and "LV" executable formats.

Member Function Documentation

◆ Dump()

void DX64::LVFormat::Dump ( Dumper::Dumper & dump) const
overridevirtual

Display file contents in a nice manner.

Reimplemented from SeychellDOS32::AdamFormat.

◆ GenerateFile()

void DX64::LVFormat::GenerateFile ( std::string filename,
Linker::Module & module )
overridevirtual

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

Reimplemented from SeychellDOS32::AdamFormat.

◆ GetOptions()

std::shared_ptr< Linker::OptionCollector > DX64::LVFormat::GetOptions ( )
overridevirtual

Returns object containing a sequence of option fields provided with the -S command line flag.

Reimplemented from SeychellDOS32::AdamFormat.

◆ ReadFile()

void DX64::LVFormat::ReadFile ( Linker::Reader & rd)
overridevirtual

Loads file into memory.

Reimplemented from SeychellDOS32::AdamFormat.

◆ SetOptions()

void DX64::LVFormat::SetOptions ( std::map< std::string, std::string > & options)
overridevirtual

Passes command line parameters as settings over to format object.

Reimplemented from SeychellDOS32::AdamFormat.

◆ WriteFile()

offset_t DX64::LVFormat::WriteFile ( Linker::Writer & wr) const
overridevirtual

Stores data in memory to file.

Reimplemented from SeychellDOS32::AdamFormat.


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