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-rw-r--r--Objects/object.c22
1 files changed, 18 insertions, 4 deletions
diff --git a/Objects/object.c b/Objects/object.c
index 6b2e0ae..7067191 100644
--- a/Objects/object.c
+++ b/Objects/object.c
@@ -159,11 +159,27 @@ _PyDebug_PrintTotalRefs(void) {
#ifdef Py_TRACE_REFS
-#define REFCHAIN(interp) &interp->object_state.refchain
+#define REFCHAIN(interp) interp->object_state.refchain
+
+static inline int
+has_own_refchain(PyInterpreterState *interp)
+{
+ if (interp->feature_flags & Py_RTFLAGS_USE_MAIN_OBMALLOC) {
+ return (_Py_IsMainInterpreter(interp)
+ || _PyInterpreterState_Main() == NULL);
+ }
+ return 1;
+}
static inline void
init_refchain(PyInterpreterState *interp)
{
+ if (!has_own_refchain(interp)) {
+ // Legacy subinterpreters share a refchain with the main interpreter.
+ REFCHAIN(interp) = REFCHAIN(_PyInterpreterState_Main());
+ return;
+ }
+ REFCHAIN(interp) = &interp->object_state._refchain_obj;
PyObject *refchain = REFCHAIN(interp);
refchain->_ob_prev = refchain;
refchain->_ob_next = refchain;
@@ -2010,9 +2026,7 @@ void
_PyObject_InitState(PyInterpreterState *interp)
{
#ifdef Py_TRACE_REFS
- if (!_Py_IsMainInterpreter(interp)) {
- init_refchain(interp);
- }
+ init_refchain(interp);
#endif
}