detect_host_arch.py 1.6 KB

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