Module: MachO::Tools

Defined in:
lib/macho/tools.rb

Overview

A collection of convenient methods for common operations on Mach-O and Fat binaries.

Class Method Summary collapse

Class Method Details

.add_rpath(filename, new_path, options = {}) ⇒ void

This method returns an undefined value.

Add a runtime path to a Mach-O or Fat binary, overwriting the source file.

Parameters:

  • filename (String) —

    the Mach-O or Fat binary being modified

  • new_path (String) —

    the new runtime path

  • options (Hash) (defaults to: {})

Options Hash (options):

  • :strict (Boolean) — default: true —

    whether or not to fail loudly with an exception if the change cannot be performed



63
64
65
66
67
68
 
# File 'lib/macho/tools.rb', line 63

def self.add_rpath(filename, new_path, options = {})
  file = MachO.open(filename)

  file.add_rpath(new_path, options)
  file.write!
end

.change_dylib_id(filename, new_id, options = {}) ⇒ void

This method returns an undefined value.

Changes the dylib ID of a Mach-O or Fat binary, overwriting the source file.

Parameters:

  • filename (String) —

    the Mach-O or Fat binary being modified

  • new_id (String) —

    the new dylib ID for the binary

  • options (Hash) (defaults to: {})

Options Hash (options):

  • :strict (Boolean) — default: true —

    whether or not to fail loudly with an exception if the change cannot be performed



19
20
21
22
23
24
 
# File 'lib/macho/tools.rb', line 19

def self.change_dylib_id(filename, new_id, options = {})
  file = MachO.open(filename)

  file.change_dylib_id(new_id, options)
  file.write!
end

.change_install_name(filename, old_name, new_name, options = {}) ⇒ void

This method returns an undefined value.

Changes a shared library install name in a Mach-O or Fat binary, overwriting the source file.

Parameters:

  • filename (String) —

    the Mach-O or Fat binary being modified

  • old_name (String) —

    the old shared library name

  • new_name (String) —

    the new shared library name

  • options (Hash) (defaults to: {})

Options Hash (options):

  • :strict (Boolean) — default: true —

    whether or not to fail loudly with an exception if the change cannot be performed



34
35
36
37
38
39
 
# File 'lib/macho/tools.rb', line 34

def self.change_install_name(filename, old_name, new_name, options = {})
  file = MachO.open(filename)

  file.change_install_name(old_name, new_name, options)
  file.write!
end

.change_rpath(filename, old_path, new_path, options = {}) ⇒ void

This method returns an undefined value.

Changes a runtime path in a Mach-O or Fat binary, overwriting the source file.

Parameters:

  • filename (String) —

    the Mach-O or Fat binary being modified

  • old_path (String) —

    the old runtime path

  • new_path (String) —

    the new runtime path

  • options (Hash) (defaults to: {})

Options Hash (options):

  • :strict (Boolean) — default: true —

    whether or not to fail loudly with an exception if the change cannot be performed



49
50
51
52
53
54
 
# File 'lib/macho/tools.rb', line 49

def self.change_rpath(filename, old_path, new_path, options = {})
  file = MachO.open(filename)

  file.change_rpath(old_path, new_path, options)
  file.write!
end

.delete_rpath(filename, old_path, options = {}) ⇒ void

This method returns an undefined value.

Delete a runtime path from a Mach-O or Fat binary, overwriting the source file.

Parameters:

  • filename (String) —

    the Mach-O or Fat binary being modified

  • old_path (String) —

    the old runtime path

  • options (Hash) (defaults to: {})

Options Hash (options):

  • :strict (Boolean) — default: true —

    whether or not to fail loudly with an exception if the change cannot be performed



77
78
79
80
81
82
 
# File 'lib/macho/tools.rb', line 77

def self.delete_rpath(filename, old_path, options = {})
  file = MachO.open(filename)

  file.delete_rpath(old_path, options)
  file.write!
end

.dylibs(filename) ⇒ Array<String>

Returns an array of all dylibs linked to the binary.

Parameters:

  • filename (String) —

    the Mach-O or Fat binary being read

Returns:

  • (Array<String>) —

    an array of all dylibs linked to the binary



6
7
8
9
10
 
# File 'lib/macho/tools.rb', line 6

def self.dylibs(filename)
  file = MachO.open(filename)

  file.linked_dylibs
end