diff options
Diffstat (limited to 'Python/frame.c')
| -rw-r--r-- | Python/frame.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/Python/frame.c b/Python/frame.c index 89f084b..52f6ef4 100644 --- a/Python/frame.c +++ b/Python/frame.c @@ -80,6 +80,7 @@ _PyFrame_Copy(_PyInterpreterFrame *src, _PyInterpreterFrame *dest) static void take_ownership(PyFrameObject *f, _PyInterpreterFrame *frame) { + assert(frame->owner != FRAME_OWNED_BY_CSTACK); assert(frame->owner != FRAME_OWNED_BY_FRAME_OBJECT); assert(frame->owner != FRAME_CLEARED); Py_ssize_t size = ((char*)&frame->localsplus[frame->stacktop]) - (char *)frame; @@ -99,7 +100,9 @@ take_ownership(PyFrameObject *f, _PyInterpreterFrame *frame) while (prev && _PyFrame_IsIncomplete(prev)) { prev = prev->previous; } + frame->previous = NULL; if (prev) { + assert(prev->owner != FRAME_OWNED_BY_CSTACK); /* Link PyFrameObjects.f_back and remove link through _PyInterpreterFrame.previous */ PyFrameObject *back = _PyFrame_GetFrameObject(prev); if (back == NULL) { @@ -111,7 +114,6 @@ take_ownership(PyFrameObject *f, _PyInterpreterFrame *frame) else { f->f_back = (PyFrameObject *)Py_NewRef(back); } - frame->previous = NULL; } if (!_PyObject_GC_IS_TRACKED((PyObject *)f)) { _PyObject_GC_TRACK((PyObject *)f); |