Class: MachO::RpathCommand

Inherits:

LoadCommand

• Object
• MachOStructure
• LoadCommand
• MachO::RpathCommand

Defined in:

lib/macho/load_commands.rb

Overview

A load command representing an rpath, which specifies a path that should be added to the current run path used to find @rpath prefixed dylibs. Corresponds to LC_RPATH.

Constant Summary

FORMAT =

This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future.

See Also:

• MachOStructure::FORMAT

"L=3".freeze

SIZEOF =

This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future.

See Also:

• MachOStructure::SIZEOF

12

Instance Attribute Summary

• #path ⇒ MachO::LoadCommand::LCStr readonly

  The path to add to the run path as an LCStr.

Attributes inherited from LoadCommand

#cmd, #cmdsize, #view

Instance Method Summary

• #initialize(view, cmd, cmdsize, path) ⇒ RpathCommand constructor private

  A new instance of RpathCommand.

• #serialize(context) ⇒ String private

  The serialized fields of the load command.

Methods inherited from LoadCommand

create, new_from_bin, #offset, #serializable?, #to_s, #type

Methods inherited from MachOStructure

bytesize, new_from_bin

Constructor Details

#initialize(view, cmd, cmdsize, path) ⇒ RpathCommand

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns a new instance of RpathCommand.

# File 'lib/macho/load_commands.rb', line 936

def initialize(view, cmd, cmdsize, path)
  super(view, cmd, cmdsize)
  @path = LCStr.new(self, path)
end

Instance Attribute Details

#path ⇒ MachO::LoadCommand::LCStr (readonly)

Returns the path to add to the run path as an LCStr.

Returns:

• (MachO::LoadCommand::LCStr) —

  the path to add to the run path as an LCStr

# File 'lib/macho/load_commands.rb', line 925

def path
  @path
end

Instance Method Details

#serialize(context) ⇒ String

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns the serialized fields of the load command.

Parameters:

• context (MachO::LoadCcommand::SerializationContext) —

  the context

Returns:

• (String) —

  the serialized fields of the load command

# File 'lib/macho/load_commands.rb', line 944

def serialize(context)
  format = Utils.specialize_format(FORMAT, context.endianness)
  string_payload, string_offsets = Utils.pack_strings(SIZEOF, context.alignment, :path => path.to_s)
  cmdsize = SIZEOF + string_payload.bytesize
  [cmd, cmdsize, string_offsets[:path]].pack(format) + string_payload
end