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[3.13] gh-123275: Support `-Xgil=1` and `PYTHON_GIL=1` on non-free-threaded builds (gh-123276) (gh-123753) 

gh-123275: Support `-Xgil=1` and `PYTHON_GIL=1` on non-free-threaded builds (gh-123276)
(cherry picked from commit 84ad264ce6)

Co-authored-by: Peter Bierma <zintensitydev@gmail.com>
This commit is contained in:
Miss Islington (bot) 2024-09-06 03:09:35 +02:00 committed by GitHub
parent e5568e5e9d
commit 92b9c4482f
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3 changed files with 12 additions and 8 deletions
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7
Doc/using/cmdline.rst
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@ -616,7 +616,7 @@ Miscellaneous options
.. versionadded:: 3.13
* :samp:`-X gil={0,1}` forces the GIL to be disabled or enabled,
respectively. Only available in builds configured with
respectively. Setting to ``0`` is only available in builds configured with
:option:`--disable-gil`. See also :envvar:`PYTHON_GIL` and
:ref:`whatsnew313-free-threaded-cpython`.
@ -1215,13 +1215,12 @@ conflict.
.. envvar:: PYTHON_GIL
If this variable is set to ``1``, the global interpreter lock (GIL) will be
forced on. Setting it to ``0`` forces the GIL off.
forced on. Setting it to ``0`` forces the GIL off (needs Python configured with
the :option:`--disable-gil` build option).
See also the :option:`-X gil <-X>` command-line option, which takes
precedence over this variable, and :ref:`whatsnew313-free-threaded-cpython`.
Needs Python configured with the :option:`--disable-gil` build option.
.. versionadded:: 3.13
Debug-mode variables

1
Misc/NEWS.d/next/Core_and_Builtins/2024-08-23-18-31-10.gh-issue-123275.DprIrj.rst Normal file
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@ -0,0 +1 @@
Support :option:`-X gil=1 <-X>` and :envvar:`PYTHON_GIL=1 <PYTHON_GIL>` on non-free-threaded builds.

12
Python/initconfig.c
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@ -1542,20 +1542,24 @@ config_wstr_to_int(const wchar_t *wstr, int *result)
static PyStatus
config_read_gil(PyConfig *config, size_t len, wchar_t first_char)
{
#ifdef Py_GIL_DISABLED
if (len == 1 && first_char == L'0') {
#ifdef Py_GIL_DISABLED
config->enable_gil = _PyConfig_GIL_DISABLE;
#else
return _PyStatus_ERR("Disabling the GIL is not supported by this build");
#endif
}
else if (len == 1 && first_char == L'1') {
#ifdef Py_GIL_DISABLED
config->enable_gil = _PyConfig_GIL_ENABLE;
#else
return _PyStatus_OK();
#endif
}
else {
return _PyStatus_ERR("PYTHON_GIL / -X gil must be \"0\" or \"1\"");
}
return _PyStatus_OK();
#else
return _PyStatus_ERR("PYTHON_GIL / -X gil are not supported by this build");
#endif
}
static PyStatus