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