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#
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# Copyright (C) 2008, 2009 Wayne Meissner
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#
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# This file is part of ruby-ffi.
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#
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# * Redistributions of source code must retain the above copyright notice, this
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# list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright notice
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# this list of conditions and the following disclaimer in the documentation
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# and/or other materials provided with the distribution.
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# * Neither the name of the Ruby FFI project nor the names of its contributors
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# may be used to endorse or promote products derived from this software
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# without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.#
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require 'rbconfig'
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require_relative 'compat'
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module FFI
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class PlatformError < LoadError; end
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# This module defines different constants and class methods to play with
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# various platforms.
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module Platform
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OS = FFI.make_shareable(case RbConfig::CONFIG['host_os'].downcase
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when /linux/
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"linux"
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when /darwin/
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"darwin"
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when /freebsd/
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"freebsd"
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when /netbsd/
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"netbsd"
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when /openbsd/
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"openbsd"
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when /dragonfly/
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"dragonflybsd"
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when /sunos|solaris/
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"solaris"
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when /mingw|mswin/
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"windows"
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else
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RbConfig::CONFIG['host_os'].downcase
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end)
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OSVERSION = RbConfig::CONFIG['host_os'].gsub(/[^\d]/, '').to_i
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CPU = FFI.make_shareable(RbConfig::CONFIG['host_cpu'])
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ARCH = FFI.make_shareable(case CPU.downcase
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when /amd64|x86_64|x64/
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"x86_64"
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when /i\d86|x86|i86pc/
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"i386"
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when /ppc64|powerpc64/
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"powerpc64"
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when /ppc|powerpc/
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"powerpc"
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when /sparcv9|sparc64/
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"sparcv9"
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when /arm64|aarch64/ # MacOS calls it "arm64", other operating systems "aarch64"
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"aarch64"
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when /^arm/
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if OS == "darwin" # Ruby before 3.0 reports "arm" instead of "arm64" as host_cpu on darwin
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"aarch64"
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else
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"arm"
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end
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else
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RbConfig::CONFIG['host_cpu']
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end)
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private
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# @param [String) os
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# @return [Boolean]
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# Test if current OS is +os+.
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def self.is_os(os)
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OS == os
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end
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IS_GNU = defined?(GNU_LIBC)
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IS_LINUX = is_os("linux")
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IS_MAC = is_os("darwin")
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IS_FREEBSD = is_os("freebsd")
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IS_NETBSD = is_os("netbsd")
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IS_OPENBSD = is_os("openbsd")
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IS_DRAGONFLYBSD = is_os("dragonfly")
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IS_SOLARIS = is_os("solaris")
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IS_WINDOWS = is_os("windows")
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IS_BSD = IS_MAC || IS_FREEBSD || IS_NETBSD || IS_OPENBSD || IS_DRAGONFLYBSD
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# Add the version for known ABI breaks
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name_version = "12" if IS_FREEBSD && OSVERSION >= 12 # 64-bit inodes
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NAME = FFI.make_shareable("#{ARCH}-#{OS}#{name_version}")
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CONF_DIR = FFI.make_shareable(File.join(File.dirname(__FILE__), 'platform', NAME))
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public
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LIBPREFIX = FFI.make_shareable(case OS
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when /windows|msys/
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''
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when /cygwin/
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'cyg'
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else
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'lib'
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end)
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LIBSUFFIX = FFI.make_shareable(case OS
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when /darwin/
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'dylib'
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when /linux|bsd|solaris/
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'so'
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when /windows|cygwin|msys/
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'dll'
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else
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# Punt and just assume a sane unix (i.e. anything but AIX)
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'so'
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end)
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LIBC = FFI.make_shareable(if IS_WINDOWS
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crtname = RbConfig::CONFIG["RUBY_SO_NAME"][/msvc\w+/] || 'ucrtbase'
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"#{crtname}.dll"
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elsif IS_GNU
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GNU_LIBC
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elsif OS == 'cygwin'
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"cygwin1.dll"
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elsif OS == 'msys'
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# Not sure how msys 1.0 behaves, tested on MSYS2.
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"msys-2.0.dll"
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else
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"#{LIBPREFIX}c.#{LIBSUFFIX}"
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end)
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LITTLE_ENDIAN = 1234 unless defined?(LITTLE_ENDIAN)
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BIG_ENDIAN = 4321 unless defined?(BIG_ENDIAN)
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unless defined?(BYTE_ORDER)
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BYTE_ORDER = [0x12345678].pack("I") == [0x12345678].pack("N") ? BIG_ENDIAN : LITTLE_ENDIAN
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end
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# Test if current OS is a *BSD (include MAC)
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# @return [Boolean]
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def self.bsd?
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IS_BSD
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end
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# Test if current OS is Windows
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# @return [Boolean]
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def self.windows?
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IS_WINDOWS
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end
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# Test if current OS is Mac OS
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# @return [Boolean]
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def self.mac?
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IS_MAC
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end
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# Test if current OS is Solaris (Sun OS)
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# @return [Boolean]
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def self.solaris?
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IS_SOLARIS
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end
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# Test if current OS is a unix OS
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# @return [Boolean]
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def self.unix?
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!IS_WINDOWS
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end
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end
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end
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