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 8import platform 9import re 10import sys 11 12 13def 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 elif host_arch.startswith('mips'): 25 host_arch = 'mips' 26 elif host_arch.startswith('ppc'): 27 host_arch = 'ppc' 28 elif host_arch.startswith('s390'): 29 host_arch = 's390' 30 31 32 # platform.machine is based on running kernel. It's possible to use 64-bit 33 # kernel with 32-bit userland, e.g. to give linker slightly more memory. 34 # Distinguish between different userland bitness by querying 35 # the python binary. 36 if host_arch == 'x64' and platform.architecture()[0] == '32bit': 37 host_arch = 'ia32' 38 39 return host_arch 40 41def DoMain(_): 42 """Hook to be called from gyp without starting a separate python 43 interpreter.""" 44 return HostArch() 45 46if __name__ == '__main__': 47 print DoMain([]) 48