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-rw-r--r--node_modules/node-gyp/gyp/pylib/packaging/_manylinux.py252
1 files changed, 0 insertions, 252 deletions
diff --git a/node_modules/node-gyp/gyp/pylib/packaging/_manylinux.py b/node_modules/node-gyp/gyp/pylib/packaging/_manylinux.py
deleted file mode 100644
index 3705d50..0000000
--- a/node_modules/node-gyp/gyp/pylib/packaging/_manylinux.py
+++ /dev/null
@@ -1,252 +0,0 @@
-import collections
-import contextlib
-import functools
-import os
-import re
-import sys
-import warnings
-from typing import Dict, Generator, Iterator, NamedTuple, Optional, Sequence, Tuple
-
-from ._elffile import EIClass, EIData, ELFFile, EMachine
-
-EF_ARM_ABIMASK = 0xFF000000
-EF_ARM_ABI_VER5 = 0x05000000
-EF_ARM_ABI_FLOAT_HARD = 0x00000400
-
-
-# `os.PathLike` not a generic type until Python 3.9, so sticking with `str`
-# as the type for `path` until then.
-@contextlib.contextmanager
-def _parse_elf(path: str) -> Generator[Optional[ELFFile], None, None]:
- try:
- with open(path, "rb") as f:
- yield ELFFile(f)
- except (OSError, TypeError, ValueError):
- yield None
-
-
-def _is_linux_armhf(executable: str) -> bool:
- # hard-float ABI can be detected from the ELF header of the running
- # process
- # https://static.docs.arm.com/ihi0044/g/aaelf32.pdf
- with _parse_elf(executable) as f:
- return (
- f is not None
- and f.capacity == EIClass.C32
- and f.encoding == EIData.Lsb
- and f.machine == EMachine.Arm
- and f.flags & EF_ARM_ABIMASK == EF_ARM_ABI_VER5
- and f.flags & EF_ARM_ABI_FLOAT_HARD == EF_ARM_ABI_FLOAT_HARD
- )
-
-
-def _is_linux_i686(executable: str) -> bool:
- with _parse_elf(executable) as f:
- return (
- f is not None
- and f.capacity == EIClass.C32
- and f.encoding == EIData.Lsb
- and f.machine == EMachine.I386
- )
-
-
-def _have_compatible_abi(executable: str, archs: Sequence[str]) -> bool:
- if "armv7l" in archs:
- return _is_linux_armhf(executable)
- if "i686" in archs:
- return _is_linux_i686(executable)
- allowed_archs = {"x86_64", "aarch64", "ppc64", "ppc64le", "s390x", "loongarch64"}
- return any(arch in allowed_archs for arch in archs)
-
-
-# If glibc ever changes its major version, we need to know what the last
-# minor version was, so we can build the complete list of all versions.
-# For now, guess what the highest minor version might be, assume it will
-# be 50 for testing. Once this actually happens, update the dictionary
-# with the actual value.
-_LAST_GLIBC_MINOR: Dict[int, int] = collections.defaultdict(lambda: 50)
-
-
-class _GLibCVersion(NamedTuple):
- major: int
- minor: int
-
-
-def _glibc_version_string_confstr() -> Optional[str]:
- """
- Primary implementation of glibc_version_string using os.confstr.
- """
- # os.confstr is quite a bit faster than ctypes.DLL. It's also less likely
- # to be broken or missing. This strategy is used in the standard library
- # platform module.
- # https://github.com/python/cpython/blob/fcf1d003bf4f0100c/Lib/platform.py#L175-L183
- try:
- # Should be a string like "glibc 2.17".
- version_string: str = getattr(os, "confstr")("CS_GNU_LIBC_VERSION")
- assert version_string is not None
- _, version = version_string.rsplit()
- except (AssertionError, AttributeError, OSError, ValueError):
- # os.confstr() or CS_GNU_LIBC_VERSION not available (or a bad value)...
- return None
- return version
-
-
-def _glibc_version_string_ctypes() -> Optional[str]:
- """
- Fallback implementation of glibc_version_string using ctypes.
- """
- try:
- import ctypes
- except ImportError:
- return None
-
- # ctypes.CDLL(None) internally calls dlopen(NULL), and as the dlopen
- # manpage says, "If filename is NULL, then the returned handle is for the
- # main program". This way we can let the linker do the work to figure out
- # which libc our process is actually using.
- #
- # We must also handle the special case where the executable is not a
- # dynamically linked executable. This can occur when using musl libc,
- # for example. In this situation, dlopen() will error, leading to an
- # OSError. Interestingly, at least in the case of musl, there is no
- # errno set on the OSError. The single string argument used to construct
- # OSError comes from libc itself and is therefore not portable to
- # hard code here. In any case, failure to call dlopen() means we
- # can proceed, so we bail on our attempt.
- try:
- process_namespace = ctypes.CDLL(None)
- except OSError:
- return None
-
- try:
- gnu_get_libc_version = process_namespace.gnu_get_libc_version
- except AttributeError:
- # Symbol doesn't exist -> therefore, we are not linked to
- # glibc.
- return None
-
- # Call gnu_get_libc_version, which returns a string like "2.5"
- gnu_get_libc_version.restype = ctypes.c_char_p
- version_str: str = gnu_get_libc_version()
- # py2 / py3 compatibility:
- if not isinstance(version_str, str):
- version_str = version_str.decode("ascii")
-
- return version_str
-
-
-def _glibc_version_string() -> Optional[str]:
- """Returns glibc version string, or None if not using glibc."""
- return _glibc_version_string_confstr() or _glibc_version_string_ctypes()
-
-
-def _parse_glibc_version(version_str: str) -> Tuple[int, int]:
- """Parse glibc version.
-
- We use a regexp instead of str.split because we want to discard any
- random junk that might come after the minor version -- this might happen
- in patched/forked versions of glibc (e.g. Linaro's version of glibc
- uses version strings like "2.20-2014.11"). See gh-3588.
- """
- m = re.match(r"(?P<major>[0-9]+)\.(?P<minor>[0-9]+)", version_str)
- if not m:
- warnings.warn(
- f"Expected glibc version with 2 components major.minor,"
- f" got: {version_str}",
- RuntimeWarning,
- )
- return -1, -1
- return int(m.group("major")), int(m.group("minor"))
-
-
-@functools.lru_cache()
-def _get_glibc_version() -> Tuple[int, int]:
- version_str = _glibc_version_string()
- if version_str is None:
- return (-1, -1)
- return _parse_glibc_version(version_str)
-
-
-# From PEP 513, PEP 600
-def _is_compatible(arch: str, version: _GLibCVersion) -> bool:
- sys_glibc = _get_glibc_version()
- if sys_glibc < version:
- return False
- # Check for presence of _manylinux module.
- try:
- import _manylinux # noqa
- except ImportError:
- return True
- if hasattr(_manylinux, "manylinux_compatible"):
- result = _manylinux.manylinux_compatible(version[0], version[1], arch)
- if result is not None:
- return bool(result)
- return True
- if version == _GLibCVersion(2, 5):
- if hasattr(_manylinux, "manylinux1_compatible"):
- return bool(_manylinux.manylinux1_compatible)
- if version == _GLibCVersion(2, 12):
- if hasattr(_manylinux, "manylinux2010_compatible"):
- return bool(_manylinux.manylinux2010_compatible)
- if version == _GLibCVersion(2, 17):
- if hasattr(_manylinux, "manylinux2014_compatible"):
- return bool(_manylinux.manylinux2014_compatible)
- return True
-
-
-_LEGACY_MANYLINUX_MAP = {
- # CentOS 7 w/ glibc 2.17 (PEP 599)
- (2, 17): "manylinux2014",
- # CentOS 6 w/ glibc 2.12 (PEP 571)
- (2, 12): "manylinux2010",
- # CentOS 5 w/ glibc 2.5 (PEP 513)
- (2, 5): "manylinux1",
-}
-
-
-def platform_tags(archs: Sequence[str]) -> Iterator[str]:
- """Generate manylinux tags compatible to the current platform.
-
- :param archs: Sequence of compatible architectures.
- The first one shall be the closest to the actual architecture and be the part of
- platform tag after the ``linux_`` prefix, e.g. ``x86_64``.
- The ``linux_`` prefix is assumed as a prerequisite for the current platform to
- be manylinux-compatible.
-
- :returns: An iterator of compatible manylinux tags.
- """
- if not _have_compatible_abi(sys.executable, archs):
- return
- # Oldest glibc to be supported regardless of architecture is (2, 17).
- too_old_glibc2 = _GLibCVersion(2, 16)
- if set(archs) & {"x86_64", "i686"}:
- # On x86/i686 also oldest glibc to be supported is (2, 5).
- too_old_glibc2 = _GLibCVersion(2, 4)
- current_glibc = _GLibCVersion(*_get_glibc_version())
- glibc_max_list = [current_glibc]
- # We can assume compatibility across glibc major versions.
- # https://sourceware.org/bugzilla/show_bug.cgi?id=24636
- #
- # Build a list of maximum glibc versions so that we can
- # output the canonical list of all glibc from current_glibc
- # down to too_old_glibc2, including all intermediary versions.
- for glibc_major in range(current_glibc.major - 1, 1, -1):
- glibc_minor = _LAST_GLIBC_MINOR[glibc_major]
- glibc_max_list.append(_GLibCVersion(glibc_major, glibc_minor))
- for arch in archs:
- for glibc_max in glibc_max_list:
- if glibc_max.major == too_old_glibc2.major:
- min_minor = too_old_glibc2.minor
- else:
- # For other glibc major versions oldest supported is (x, 0).
- min_minor = -1
- for glibc_minor in range(glibc_max.minor, min_minor, -1):
- glibc_version = _GLibCVersion(glibc_max.major, glibc_minor)
- tag = "manylinux_{}_{}".format(*glibc_version)
- if _is_compatible(arch, glibc_version):
- yield f"{tag}_{arch}"
- # Handle the legacy manylinux1, manylinux2010, manylinux2014 tags.
- if glibc_version in _LEGACY_MANYLINUX_MAP:
- legacy_tag = _LEGACY_MANYLINUX_MAP[glibc_version]
- if _is_compatible(arch, glibc_version):
- yield f"{legacy_tag}_{arch}"