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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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10
Python/pylifecycle.c
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@ -2805,6 +2805,16 @@ _Py_FatalErrorFormat(const char *func, const char *format, ...)
}
void _Py_NO_RETURN
_Py_FatalRefcountErrorFunc(const char *func, const char *msg)
{
_Py_FatalErrorFormat(func,
"%s: bug likely caused by a refcount error "
"in a C extension",
msg);
}
void _Py_NO_RETURN
Py_ExitStatusException(PyStatus status)
{