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| author | Mark Shannon <mark@hotpy.org> | 2021-12-07 16:02:53 +0000 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-12-07 16:02:53 +0000 |
| commit | 8319114feedd2a5b77378bba24eb9fb2689c5033 (patch) | |
| tree | b96bfa2c7b8d36124b713170f421f653360a4b5c /Python/sysmodule.c | |
| parent | c7e7a4b969b5728d4b4f3c59bf98e1e830d5c6d6 (diff) | |
| download | cpython-8319114feedd2a5b77378bba24eb9fb2689c5033.tar.gz cpython-8319114feedd2a5b77378bba24eb9fb2689c5033.zip | |
bpo-45947: Place dict and values pointer at fixed (negative) offset just before GC header. (GH-29879)
* Place __dict__ immediately before GC header for plain Python objects.
* Fix up lazy dict creation logic to use managed dict pointers.
* Manage values pointer, placing them directly before managed dict pointers.
* Convert hint-based load/store attr specialization target managed dict classes.
* Specialize LOAD_METHOD for managed dict objects.
* Remove unsafe _PyObject_GC_Calloc function.
* Remove unsafe _PyObject_GC_Malloc() function.
* Add comment explaning use of Py_TPFLAGS_MANAGED_DICT.
Diffstat (limited to 'Python/sysmodule.c')
| -rw-r--r-- | Python/sysmodule.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/Python/sysmodule.c b/Python/sysmodule.c index 13fae797b29..af4f926f0e4 100644 --- a/Python/sysmodule.c +++ b/Python/sysmodule.c @@ -1681,10 +1681,7 @@ _PySys_GetSizeOf(PyObject *o) return (size_t)-1; } - /* add gc_head size */ - if (_PyObject_IS_GC(o)) - return ((size_t)size) + sizeof(PyGC_Head); - return (size_t)size; + return (size_t)size + _PyType_PreHeaderSize(Py_TYPE(o)); } static PyObject * |