8000 gh-117482: Fix Builtin Types Slot Wrappers When Embedded by ericsnowcurrently · Pull Request #121636 · python/cpython · GitHub
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gh-117482: Fix Builtin Types Slot Wrappers When Embedded #121636

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gh-117482: Fix Builtin Types Slot Wrappers When Embedded #121636

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99c5746
Restore the finalization code.
ericsnowcurrently Jul 11, 2024
853c7d2
Factor out static type def helpers.
ericsnowcurrently Jul 11, 2024
753be4d
Do not preserve the metaclass on the def.
ericsnowcurrently Jul 11, 2024
5c422f4
Do not return the def from managed_static_type_state_clear().
ericsnowcurrently Jul 11, 2024
eba8751
Factor out struct static_type_def.
ericsnowcurrently Jul 11, 2024
8000ab3
Clear the index after getting the def.
ericsnowcurrently Jul 11, 2024
6b17676
Do not overwrite the entire type struct; only the tp slot operators.
ericsnowcurrently Jul 11, 2024
e777250
Preserve the type substructs too.
ericsnowcurrently Jul 11, 2024
8520cfc
Fix a compiler error on Windows.
ericsnowcurrently Jul 11, 2024
631bf66
Merge branch 'main' into fix-builtin-slot-wrappers-embedded
ericsnowcurrently Aug 12, 2024
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Restore the finalization code.
  • Loading branch information
@ericsnowcurrently
ericsnowcurrently committed Jul 11, 2024
commit 99c57468d9bdbcb3a7dffcb6cbfcf782bbb4ca56
22 changes: 20 additions & 2 deletions Objects/typeobject.c
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Original file line number Diff line number Diff line change
Expand Up @@ -269,14 +269,15 @@ managed_static_type_state_init(PyInterpreterState *interp, PyTypeObject *self,

/* Reset the type's per-interpreter state.
This basically undoes what managed_static_type_state_init() did. */
static void
static PyTypeObject *
managed_static_type_state_clear(PyInterpreterState *interp, PyTypeObject *self,
int isbuiltin, int final)
{
size_t index = managed_static_type_index_get(self);
size_t full_index = isbuiltin
? index
: index + _Py_MAX_MANAGED_STATIC_BUILTIN_TYPES;
PyTypeObject *def = &_PyRuntime.types.managed_static.types[full_index].def;

managed_static_type_state *state = isbuiltin
? &(interp->types.builtins.initialized[index])
Expand Down Expand Up @@ -312,6 +313,8 @@ managed_static_type_state_clear(PyInterpreterState *interp, PyTypeObject *self,
}
PyMutex_Unlock(&interp->types.mutex);
}

return def;
}

static PyTypeObject *
Expand Down Expand Up @@ -5849,7 +5852,15 @@ fini_static_type(PyInterpreterState *interp, PyTypeObject *type,
}

_PyStaticType_ClearWeakRefs(interp, type);
managed_static_type_state_clear(interp, type, isbuiltin, final);
PyTypeObject *def =
managed_static_type_state_clear(interp, type, isbuiltin, final);
/* For now we exclude extension module types. */
if (final && isbuiltin) {
/* Restore the static type to it's (mostly) original values. */
destructor dealloc = type->tp_dealloc;
memcpy(type, def, sizeof(PyTypeObject));
type->tp_dealloc = dealloc;
}
}

void
Expand Down Expand Up @@ -8481,6 +8492,9 @@ init_static_type(PyInterpreterState *interp, PyTypeObject *self,
PyTypeObject *def = managed_static_type_get_def(self, isbuiltin);
if (initial) {
memcpy(def, self, sizeof(PyTypeObject));
/* For now we do not worry about preserving the index
at finalization. */
managed_static_type_index_clear(def);
}

int res;
Expand All @@ -8492,6 +8506,10 @@ init_static_type(PyInterpreterState *interp, PyTypeObject *self,
managed_static_type_state_clear(interp, self, isbuiltin, initial);
}

if (initial) {
Py_SET_TYPE(def, Py_TYPE(self));
}

return res;
}

Expand Down
0