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bpo-45061: Detect refcount bug on empty tuple singleton (GH-28503)

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Detect refcount bugs in C extensions when the empty tuple singleton
is destroyed by mistake.

Add the _Py_FatalRefcountErrorFunc() function.
This commit is contained in:
Victor Stinner 2021-09-21 23:04:34 +02:00 • committed by GitHub
parent f604cf1c37
commit 79a3148099
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6 changed files with 41 additions and 5 deletions
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6
Include/internal/pycore_pyerrors.h
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@ -90,6 +90,12 @@ extern PyObject* _Py_Offer_Suggestions(PyObject* exception);
PyAPI_FUNC(Py_ssize_t) _Py_UTF8_Edit_Cost(PyObject *str_a, PyObject *str_b,
Py_ssize_t max_cost);
PyAPI_FUNC(void) _Py_NO_RETURN _Py_FatalRefcountErrorFunc(
const char *func,
const char *message);
#define _Py_FatalRefcountError(message) _Py_FatalRefcountErrorFunc(__func__, message)
#ifdef __cplusplus
}
#endif