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| author | Victor Stinner <vstinner@redhat.com> | 2019-04-25 18:13:10 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2019-04-25 18:13:10 (GMT) |
| commit | 8c3ecc6bacc8d0cd534f2b5b53ed962dd1368c7b (patch) | |
| tree | dec5a169a27fde398d57e508f0eb383f1975e418 /Doc | |
| parent | d7befad328ad1a6d1f812be2bf154c1cd1e01fbc (diff) | |
| download | cpython-8c3ecc6bacc8d0cd534f2b5b53ed962dd1368c7b.zip cpython-8c3ecc6bacc8d0cd534f2b5b53ed962dd1368c7b.tar.gz cpython-8c3ecc6bacc8d0cd534f2b5b53ed962dd1368c7b.tar.bz2 | |
bpo-21536: C extensions are no longer linked to libpython (GH-12946)
On Unix, C extensions are no longer linked to libpython.
It is now possible to load a C extension built using a shared library
Python with a statically linked Python.
When Python is embedded, libpython must not be loaded with
RTLD_LOCAL, but RTLD_GLOBAL instead. Previously, using RTLD_LOCAL, it
was already not possible to load C extensions which were not linked
to libpython, like C extensions of the standard library built by the
"*shared*" section of Modules/Setup.
distutils, python-config and python-config.py have been modified.
Diffstat (limited to 'Doc')
| -rw-r--r-- | Doc/distutils/apiref.rst | 4 | ||||
| -rw-r--r-- | Doc/whatsnew/3.8.rst | 11 |
2 files changed, 11 insertions, 4 deletions
diff --git a/Doc/distutils/apiref.rst b/Doc/distutils/apiref.rst index a825efc..c3cdfc8 100644 --- a/Doc/distutils/apiref.rst +++ b/Doc/distutils/apiref.rst @@ -277,6 +277,10 @@ the full reference. | | simply skip the extension. | | +------------------------+--------------------------------+---------------------------+ + .. versionchanged:: 3.8 + + On Unix, C extensions are no longer linked to libpython. + .. class:: Distribution diff --git a/Doc/whatsnew/3.8.rst b/Doc/whatsnew/3.8.rst index 344656b..2270334 100644 --- a/Doc/whatsnew/3.8.rst +++ b/Doc/whatsnew/3.8.rst @@ -851,16 +851,19 @@ Changes in the Python API Changes in the C API -------------------- +* On Unix, C extensions are no longer linked to libpython. When Python is + embedded, ``libpython`` must not be loaded with ``RTLD_LOCAL``, but + ``RTLD_GLOBAL`` instead. Previously, using ``RTLD_LOCAL``, it was already not + possible to load C extensions which were not linked to ``libpython``, like C + extensions of the standard library built by the ``*shared*`` section of + ``Modules/Setup``. + * Use of ``#`` variants of formats in parsing or building value (e.g. :c:func:`PyArg_ParseTuple`, :c:func:`Py_BuildValue`, :c:func:`PyObject_CallFunction`, etc.) without ``PY_SSIZE_T_CLEAN`` defined raises ``DeprecationWarning`` now. It will be removed in 3.10 or 4.0. Read :ref:`arg-parsing` for detail. (Contributed by Inada Naoki in :issue:`36381`.) - -Changes in the C API --------------------------- - * Instances of heap-allocated types (such as those created with :c:func:`PyType_FromSpec`) hold a reference to their type object. Increasing the reference count of these type objects has been moved from |