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      1 # Copyright 2008 the V8 project authors. All rights reserved.
      2 # Redistribution and use in source and binary forms, with or without
      3 # modification, are permitted provided that the following conditions are
      4 # met:
      5 #
      6 #     * Redistributions of source code must retain the above copyright
      7 #       notice, this list of conditions and the following disclaimer.
      8 #     * Redistributions in binary form must reproduce the above
      9 #       copyright notice, this list of conditions and the following
     10 #       disclaimer in the documentation and/or other materials provided
     11 #       with the distribution.
     12 #     * Neither the name of Google Inc. nor the names of its
     13 #       contributors may be used to endorse or promote products derived
     14 #       from this software without specific prior written permission.
     15 #
     16 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     17 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     18 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     19 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     20 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     21 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     22 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     23 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     24 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     26 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27 
     28 
     29 import platform
     30 import re
     31 
     32 
     33 # Reads a .list file into an array of strings
     34 def ReadLinesFrom(name):
     35   list = []
     36   for line in open(name):
     37     if '#' in line:
     38       line = line[:line.find('#')]
     39     line = line.strip()
     40     if len(line) == 0:
     41       continue
     42     list.append(line)
     43   return list
     44 
     45 
     46 def GuessOS():
     47   id = platform.system()
     48   if id == 'Linux':
     49     return 'linux'
     50   elif id == 'Darwin':
     51     return 'macos'
     52   elif id == 'Windows' or id == 'Microsoft':
     53     # On Windows Vista platform.system() can return 'Microsoft' with some
     54     # versions of Python, see http://bugs.python.org/issue1082
     55     return 'win32'
     56   elif id == 'FreeBSD':
     57     return 'freebsd'
     58   elif id == 'OpenBSD':
     59     return 'openbsd'
     60   elif id == 'SunOS':
     61     return 'solaris'
     62   else:
     63     return None
     64 
     65 
     66 def GuessArchitecture():
     67   id = platform.machine()
     68   if id.startswith('arm'):
     69     return 'arm'
     70   elif (not id) or (not re.match('(x|i[3-6])86', id) is None):
     71     return 'ia32'
     72   elif id == 'i86pc':
     73     return 'ia32'
     74   else:
     75     return None
     76 
     77 
     78 def GuessWordsize():
     79   if '64' in platform.machine():
     80     return '64'
     81   else:
     82     return '32'
     83 
     84 
     85 def IsWindows():
     86   return GuessOS() == 'win32'
     87