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# Copyright 2008 the V8 project authors. 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 Google Inc. 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.

import platform

import re

# Reads a .list file into an array of strings

def ReadLinesFrom(name):

list = []

for line in open(name):

if '#' in line:

line = line[:line.find('#')]

line = line.strip()

if len(line) == 0:

continue

list.append(line)

return list

def GuessOS():

id = platform.system()

if id == 'Linux':

return 'linux'

elif id == 'Darwin':

return 'macos'

elif id.find('CYGWIN') >= 0:

return 'cygwin'

elif id == 'Windows' or id == 'Microsoft':

# On Windows Vista platform.system() can return 'Microsoft' with some

# versions of Python, see http://bugs.python.org/issue1082

return 'win32'

elif id == 'FreeBSD':

return 'freebsd'

elif id == 'OpenBSD':

return 'openbsd'

elif id == 'SunOS':

return 'solaris'

elif id == 'NetBSD':

return 'netbsd'

elif id == 'DragonFly':

# Doing so on purpose as they are pretty close

# minus few features

return 'freebsd'

elif id == 'AIX':

return 'aix'

elif id == 'OS400':

return 'ibmi'

else:

return None

# This will default to building the 32 bit VM even on machines that are capable

# of running the 64 bit VM. Use the scons option --arch=x64 to force it to build

# the 64 bit VM.

def GuessArchitecture():

id = platform.machine()

id = id.lower() # Windows 7 capitalizes 'AMD64'.

if id.startswith('armv6'): # Can return 'armv6l'.

return 'armv6'

elif id.startswith('arm') or id == 'aarch64':

return 'arm'

elif (not id) or (not re.match('(x|i[3-6])86$', id) is None):

return 'ia32'

elif id == 'i86pc':

return 'ia32'

elif id == 'x86_64':

return 'ia32'

elif id == 'amd64':

return 'ia32'

elif id.startswith('ppc'):

return 'ppc'

elif id == 's390x':

return 's390'

else:

id = platform.processor()

if id == 'powerpc':

return 'ppc'

return None

def IsWindows():

return GuessOS() == 'win32'