1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
|
#
# 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
|