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- """Shared AIX support functions."""
- import sys
- import sysconfig
- try:
- import subprocess
- except ImportError: # pragma: no cover
- # _aix_support is used in distutils by setup.py to build C extensions,
- # before subprocess dependencies like _posixsubprocess are available.
- import _bootsubprocess as subprocess
- def _aix_tag(vrtl, bd):
- # type: (List[int], int) -> str
- # Infer the ABI bitwidth from maxsize (assuming 64 bit as the default)
- _sz = 32 if sys.maxsize == (2**31-1) else 64
- _bd = bd if bd != 0 else 9988
- # vrtl[version, release, technology_level]
- return "aix-{:1x}{:1d}{:02d}-{:04d}-{}".format(vrtl[0], vrtl[1], vrtl[2], _bd, _sz)
- # extract version, release and technology level from a VRMF string
- def _aix_vrtl(vrmf):
- # type: (str) -> List[int]
- v, r, tl = vrmf.split(".")[:3]
- return [int(v[-1]), int(r), int(tl)]
- def _aix_bos_rte():
- # type: () -> Tuple[str, int]
- """
- Return a Tuple[str, int] e.g., ['7.1.4.34', 1806]
- The fileset bos.rte represents the current AIX run-time level. It's VRMF and
- builddate reflect the current ABI levels of the runtime environment.
- If no builddate is found give a value that will satisfy pep425 related queries
- """
- # All AIX systems to have lslpp installed in this location
- out = subprocess.check_output(["/usr/bin/lslpp", "-Lqc", "bos.rte"])
- out = out.decode("utf-8")
- out = out.strip().split(":") # type: ignore
- _bd = int(out[-1]) if out[-1] != '' else 9988
- return (str(out[2]), _bd)
- def aix_platform():
- # type: () -> str
- """
- AIX filesets are identified by four decimal values: V.R.M.F.
- V (version) and R (release) can be retrieved using ``uname``
- Since 2007, starting with AIX 5.3 TL7, the M value has been
- included with the fileset bos.rte and represents the Technology
- Level (TL) of AIX. The F (Fix) value also increases, but is not
- relevant for comparing releases and binary compatibility.
- For binary compatibility the so-called builddate is needed.
- Again, the builddate of an AIX release is associated with bos.rte.
- AIX ABI compatibility is described as guaranteed at: https://www.ibm.com/\
- support/knowledgecenter/en/ssw_aix_72/install/binary_compatability.html
- For pep425 purposes the AIX platform tag becomes:
- "aix-{:1x}{:1d}{:02d}-{:04d}-{}".format(v, r, tl, builddate, bitsize)
- e.g., "aix-6107-1415-32" for AIX 6.1 TL7 bd 1415, 32-bit
- and, "aix-6107-1415-64" for AIX 6.1 TL7 bd 1415, 64-bit
- """
- vrmf, bd = _aix_bos_rte()
- return _aix_tag(_aix_vrtl(vrmf), bd)
- # extract vrtl from the BUILD_GNU_TYPE as an int
- def _aix_bgt():
- # type: () -> List[int]
- gnu_type = sysconfig.get_config_var("BUILD_GNU_TYPE")
- if not gnu_type:
- raise ValueError("BUILD_GNU_TYPE is not defined")
- return _aix_vrtl(vrmf=gnu_type)
- def aix_buildtag():
- # type: () -> str
- """
- Return the platform_tag of the system Python was built on.
- """
- # AIX_BUILDDATE is defined by configure with:
- # lslpp -Lcq bos.rte | awk -F: '{ print $NF }'
- build_date = sysconfig.get_config_var("AIX_BUILDDATE")
- try:
- build_date = int(build_date)
- except (ValueError, TypeError):
- raise ValueError(f"AIX_BUILDDATE is not defined or invalid: "
- f"{build_date!r}")
- return _aix_tag(_aix_bgt(), build_date)
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