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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) | |