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
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9#     * Redistributions in binary form must reproduce the above
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17# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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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
31import platform
32import re
33import sys
34
35
36def main():
37  print DoMain([])
38  return 0
39
40def DoMain(_):
41  """Hook to be called from gyp without starting a separate python
42  interpreter."""
43  host_arch = platform.machine()
44  host_system = platform.system();
45
46  # Convert machine type to format recognized by gyp.
47  if re.match(r'i.86', host_arch) or host_arch == 'i86pc':
48    host_arch = 'ia32'
49  elif host_arch in ['x86_64', 'amd64']:
50    host_arch = 'x64'
51  elif host_arch.startswith('arm'):
52    host_arch = 'arm'
53  elif host_arch == 'aarch64':
54    host_arch = 'arm64'
55  elif host_arch == 'mips64':
56    host_arch = 'mips64el'
57  elif host_arch.startswith('mips'):
58    host_arch = 'mipsel'
59
60  # Under AIX the value returned by platform.machine is not
61  # the best indicator of the host architecture
62  # AIX 6.1 which is the lowest level supported only provides
63  # a 64 bit kernel
64  if host_system == 'AIX':
65    host_arch = 'ppc64'
66
67  # platform.machine is based on running kernel. It's possible to use 64-bit
68  # kernel with 32-bit userland, e.g. to give linker slightly more memory.
69  # Distinguish between different userland bitness by querying
70  # the python binary.
71  if host_arch == 'x64' and platform.architecture()[0] == '32bit':
72    host_arch = 'ia32'
73
74  return host_arch
75
76if __name__ == '__main__':
77  sys.exit(main())
78