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 8from __future__ import print_function 9 10import platform 11import re 12import sys 13 14 15def HostArch(): 16 """Returns the host architecture with a predictable string.""" 17 host_arch = platform.machine() 18 19 # Convert machine type to format recognized by gyp. 20 if re.match(r'i.86', host_arch) or host_arch == 'i86pc': 21 host_arch = 'ia32' 22 elif host_arch in ['x86_64', 'amd64']: 23 host_arch = 'x64' 24 elif host_arch.startswith('arm64'): 25 host_arch = 'arm64' 26 elif host_arch.startswith('arm'): 27 host_arch = 'arm' 28 elif host_arch.startswith('aarch64'): 29 host_arch = 'arm64' 30 elif host_arch.startswith('mips64'): 31 host_arch = 'mips64' 32 elif host_arch.startswith('mips'): 33 host_arch = 'mips' 34 elif host_arch.startswith('ppc'): 35 host_arch = 'ppc' 36 elif host_arch.startswith('s390'): 37 host_arch = 's390' 38 39 40 # platform.machine is based on running kernel. It's possible to use 64-bit 41 # kernel with 32-bit userland, e.g. to give linker slightly more memory. 42 # Distinguish between different userland bitness by querying 43 # the python binary. 44 if host_arch == 'x64' and platform.architecture()[0] == '32bit': 45 host_arch = 'ia32' 46 if host_arch == 'arm64' and platform.architecture()[0] == '32bit': 47 host_arch = 'arm' 48 49 return host_arch 50 51def DoMain(_): 52 """Hook to be called from gyp without starting a separate python 53 interpreter.""" 54 return HostArch() 55 56if __name__ == '__main__': 57 print(DoMain([])) 58