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GH-91079: Implement C stack limits using addresses, not counters. (GH-130007)

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* Implement C recursion protection with limit pointers

* Remove calls to PyOS_CheckStack

* Add stack protection to parser

* Make tests more robust to low stacks

* Improve error messages for stack overflow
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Mark Shannon 2025-02-19 11:44:57 +00:00 • committed by GitHub
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6
Doc/c-api/exceptions.rst
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@ -921,11 +921,7 @@ because the :ref:`call protocol <call>` takes care of recursion handling.
Marks a point where a recursive C-level call is about to be performed.
If :c:macro:`!USE_STACKCHECK` is defined, this function checks if the OS
stack overflowed using :c:func:`PyOS_CheckStack`. If this is the case, it
sets a :exc:`MemoryError` and returns a nonzero value.
The function then checks if the recursion limit is reached. If this is the
The function then checks if the stack limit is reached. If this is the
case, a :exc:`RecursionError` is set and a nonzero value is returned.
Otherwise, zero is returned.