1 #!/usr/bin/env python 2 # Copyright 2014 The Chromium Authors. All rights reserved. 3 # Use of this source code is governed by a BSD-style license that can be 4 # found in the LICENSE file. 5 6 """Outputs host CPU architecture in format recognized by gyp.""" 7 8 import platform 9 import re 10 import sys 11 12 13 def HostArch(): 14 """Returns the host architecture with a predictable string.""" 15 host_arch = platform.machine() 16 17 # Convert machine type to format recognized by gyp. 18 if re.match(r'i.86', host_arch) or host_arch == 'i86pc': 19 host_arch = 'ia32' 20 elif host_arch in ['x86_64', 'amd64']: 21 host_arch = 'x64' 22 elif host_arch.startswith('arm'): 23 host_arch = 'arm' 24 25 # platform.machine is based on running kernel. It's possible to use 64-bit 26 # kernel with 32-bit userland, e.g. to give linker slightly more memory. 27 # Distinguish between different userland bitness by querying 28 # the python binary. 29 if host_arch == 'x64' and platform.architecture()[0] == '32bit': 30 host_arch = 'ia32' 31 32 return host_arch 33 34 def DoMain(_): 35 """Hook to be called from gyp without starting a separate python 36 interpreter.""" 37 return HostArch() 38 39 if __name__ == '__main__': 40 print DoMain([]) 41
