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Pablo Galindo Salgado
fbfc6ccb0a
_PyFrame_Copy() copied interpreter frames into generator and frame-object storage without initializing the visited byte. Incremental GC later reads frame->visited in mark_stacks() on non-start passes, so copied frames could expose an uninitialized value once they became live on a thread stack again. Reset visited when copying a frame so copied frames start with defined GC bookkeeping state. Preserve lltrace in Py_DEBUG builds.
The Python C API ================ The C API is divided into these sections: 1. ``Include/``: Limited API 2. ``Include/cpython/``: CPython implementation details 3. ``Include/cpython/``, names with the ``PyUnstable_`` prefix: API that can change between minor releases 4. ``Include/internal/``, and any name with ``_`` prefix: The internal API Information on changing the C API is available `in the developer guide`_ .. _in the developer guide: https://devguide.python.org/c-api/