detect_host_arch.py (1558B)
1 #!/usr/bin/env python3 2 # Copyright 2014 The Chromium Authors 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 9 import platform 10 import re 11 import sys 12 13 14 def HostArch(): 15 """Returns the host architecture with a predictable string.""" 16 host_arch = platform.machine() 17 18 # Convert machine type to format recognized by gyp. 19 if re.match(r'i.86', host_arch) or host_arch == 'i86pc': 20 host_arch = 'ia32' 21 elif host_arch in ['x86_64', 'amd64']: 22 host_arch = 'x64' 23 elif host_arch.startswith('arm'): 24 host_arch = 'arm' 25 elif host_arch.startswith('aarch64'): 26 host_arch = 'arm64' 27 elif host_arch.startswith('mips64'): 28 host_arch = 'mips64' 29 elif host_arch.startswith('mips'): 30 host_arch = 'mips' 31 elif host_arch.startswith('ppc'): 32 host_arch = 'ppc' 33 elif host_arch.startswith('s390'): 34 host_arch = 's390' 35 36 37 # platform.machine is based on running kernel. It's possible to use 64-bit 38 # kernel with 32-bit userland, e.g. to give linker slightly more memory. 39 # Distinguish between different userland bitness by querying 40 # the python binary. 41 if host_arch == 'x64' and platform.architecture()[0] == '32bit': 42 host_arch = 'ia32' 43 if host_arch == 'arm64' and platform.architecture()[0] == '32bit': 44 host_arch = 'arm' 45 46 return host_arch 47 48 def DoMain(_): 49 """Hook to be called from gyp without starting a separate python 50 interpreter.""" 51 return HostArch() 52 53 if __name__ == '__main__': 54 print(DoMain([]))