Module: Libv8::Arch

Included in:
Builder
Defined in:
ext/libv8/arch.rb

Class Method Summary collapse

Class Method Details

.arm? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'ext/libv8/arch.rb', line 32

def arm?
  RbConfig::MAKEFILE_CONFIG['build_cpu'] =~ /^arm/
end

.libv8_arch ⇒ Object 



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# File 'ext/libv8/arch.rb', line 36

def libv8_arch
  if arm? then "arm"
  elsif x64? then "x64"
  else "ia32"
  end
end

.rubinius? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'ext/libv8/arch.rb', line 19

def rubinius?
  Object.const_defined?(:RUBY_ENGINE) && RUBY_ENGINE == "rbx"
end

.x64? ⇒ Boolean

TODO fix false positive on 64-bit ARM

Returns:

  • (Boolean) 


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# File 'ext/libv8/arch.rb', line 24

def x64?
  if rubinius?
    x86_64_from_build_cpu || x86_64_from_arch_flag
  else
    x86_64_from_byte_length
  end
end

.x86_64_from_arch_flag ⇒ Object 



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# File 'ext/libv8/arch.rb', line 15

def x86_64_from_arch_flag
  RbConfig::MAKEFILE_CONFIG['ARCH_FLAG'] =~ /x86_64/
end

.x86_64_from_build_cpu ⇒ Object 



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# File 'ext/libv8/arch.rb', line 7

def x86_64_from_build_cpu
  RbConfig::MAKEFILE_CONFIG['build_cpu'] == 'x86_64'
end

.x86_64_from_byte_length ⇒ Object 



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# File 'ext/libv8/arch.rb', line 11

def x86_64_from_byte_length
  ['foo'].pack('p').size == 8
end