1#!/usr/bin/env python 2# Copyright 2014 the V8 project authors. All rights reserved. 3# Redistribution and use in source and binary forms, with or without 4# modification, are permitted provided that the following conditions are 5# met: 6# 7# * Redistributions of source code must retain the above copyright 8# notice, this list of conditions and the following disclaimer. 9# * Redistributions in binary form must reproduce the above 10# copyright notice, this list of conditions and the following 11# disclaimer in the documentation and/or other materials provided 12# with the distribution. 13# * Neither the name of Google Inc. nor the names of its 14# contributors may be used to endorse or promote products derived 15# from this software without specific prior written permission. 16# 17# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 18# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 19# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 20# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 21# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 22# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 23# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 27# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 29"""Outputs host CPU architecture in format recognized by gyp.""" 30 31 32from __future__ import print_function 33import platform 34import re 35import sys 36 37 38def main(): 39 print(DoMain([])) 40 return 0 41 42def DoMain(_): 43 return DetectHostArch(); 44 45def DetectHostArch(): 46 """Hook to be called from gyp without starting a separate python 47 interpreter.""" 48 host_arch = platform.machine() 49 host_system = platform.system(); 50 51 # Convert machine type to format recognized by gyp. 52 if re.match(r'i.86', host_arch) or host_arch == 'i86pc': 53 host_arch = 'ia32' 54 elif host_arch in ['x86_64', 'amd64']: 55 host_arch = 'x64' 56 elif host_arch.startswith('arm'): 57 host_arch = 'arm' 58 elif host_arch == 'aarch64': 59 host_arch = 'arm64' 60 elif host_arch == 'mips64': 61 host_arch = 'mips64el' 62 elif host_arch.startswith('mips'): 63 host_arch = 'mipsel' 64 65 # Under AIX the value returned by platform.machine is not 66 # the best indicator of the host architecture 67 # AIX 6.1 which is the lowest level supported only provides 68 # a 64 bit kernel 69 if host_system == 'AIX': 70 host_arch = 'ppc64' 71 72 # platform.machine is based on running kernel. It's possible to use 64-bit 73 # kernel with 32-bit userland, e.g. to give linker slightly more memory. 74 # Distinguish between different userland bitness by querying 75 # the python binary. 76 if host_arch == 'x64' and platform.architecture()[0] == '32bit': 77 host_arch = 'ia32' 78 79 return host_arch 80 81if __name__ == '__main__': 82 sys.exit(main()) 83