Module: FFI::Platform

FFI.make_shareable(case CPU.downcase
when /amd64|x86_64|x64/
  "x86_64"
when /i\d86|x86|i86pc/
  "i386"
when /ppc64|powerpc64/
  "powerpc64"
when /ppc|powerpc/
  "powerpc"
when /sparcv9|sparc64/
  "sparcv9"
when /arm64|aarch64/  # MacOS calls it "arm64", other operating systems "aarch64"
  "aarch64"
when /^arm/
  if OS == "darwin"   # Ruby before 3.0 reports "arm" instead of "arm64" as host_cpu on darwin
    "aarch64"
  else
    "arm"
  end
else
  RbConfig::CONFIG['host_cpu']
end)

4321

INT2FIX(BYTE_ORDER)

FFI.make_shareable(File.join(File.dirname(__FILE__), 'platform', NAME))

FFI.make_shareable(RbConfig::CONFIG['host_cpu'])

rb_str_new2(LIBC_SO)

IS_MAC || IS_FREEBSD || IS_NETBSD || IS_OPENBSD || IS_DRAGONFLYBSD

is_os("dragonfly")

is_os("freebsd")

defined?(GNU_LIBC)

is_os("linux")

is_os("darwin")

is_os("netbsd")

is_os("openbsd")

is_os("solaris")

is_os("windows")

FFI.make_shareable(if IS_WINDOWS
  crtname = RbConfig::CONFIG["RUBY_SO_NAME"][/msvc\w+/] || 'ucrtbase'
  "#{crtname}.dll"
elsif IS_GNU
  GNU_LIBC
elsif OS == 'cygwin'
  "cygwin1.dll"
elsif OS == 'msys'
  # Not sure how msys 1.0 behaves, tested on MSYS2.
  "msys-2.0.dll"
else
  "#{LIBPREFIX}c.#{LIBSUFFIX}"
end)

FFI.make_shareable(case OS
when /windows|msys/
  ''
when /cygwin/
  'cyg'
else
  'lib'
end)

FFI.make_shareable(case OS
when /darwin/
  'dylib'
when /linux|bsd|solaris/
  'so'
when /windows|cygwin|msys/
  'dll'
else
  # Punt and just assume a sane unix (i.e. anything but AIX)
  'so'
end)

1234

FFI.make_shareable("#{ARCH}-#{OS}#{name_version}")

FFI.make_shareable(case RbConfig::CONFIG['host_os'].downcase
when /linux/
  "linux"
when /darwin/
  "darwin"
when /freebsd/
  "freebsd"
when /netbsd/
  "netbsd"
when /openbsd/
  "openbsd"
when /dragonfly/
  "dragonflybsd"
when /sunos|solaris/
  "solaris"
when /mingw|mswin/
  "windows"
else
  RbConfig::CONFIG['host_os'].downcase
end)

RbConfig::CONFIG['host_os'].gsub(/[^\d]/, '').to_i