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GH-125174: Mark objects as statically allocated. #127797

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Merged
markshannon merged 11 commits into from
Dec 11, 2024
Merged

GH-125174: Mark objects as statically allocated. #127797

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5188c1c
Make explicit that refcnt is 32 bits even on 64 bit machines
markshannon Dec 10, 2024
ce2f515
Mark statically allocated objects
markshannon Dec 10, 2024
8d48e23
Update some initializers
markshannon Dec 10, 2024
22f58e7
Fix test on 32 bit machines
markshannon Dec 10, 2024
5d7e1c0
Fix some compiler warnings
markshannon Dec 10, 2024
2fd9d34
Set flags properly for all objects
markshannon Dec 10, 2024
3788c60
Add test
markshannon Dec 11, 2024
dea0fa8
Set immortal flag for FT build
markshannon Dec 11, 2024
7cb320b
Unroll loop to see which test is failing
markshannon Dec 11, 2024
7aefe57
Fix copy and paste errors
markshannon Dec 11, 2024
ddff596
Down downgrade from static immortal to plain immortal
markshannon Dec 11, 2024
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Down downgrade from static immortal to plain immortal
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@markshannon
markshannon committed Dec 11, 2024
commit ddff59692c3af17c3a52d207a9d62fbae87da08d
4 changes: 4 additions & 0 deletions Objects/object.c
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Expand Up @@ -2521,6 +2521,10 @@ _Py_SetImmortalUntracked(PyObject *op)
|| PyUnicode_CHECK_INTERNED(op) == SSTATE_INTERNED_IMMORTAL_STATIC);
}
#endif
// Check if already immortal to avoid degrading from static immortal to plain immortal
if (_Py_IsImmortal(op)) {
return;
}
#ifdef Py_GIL_DISABLED
op->ob_tid = _Py_UNOWNED_TID;
op->ob_ref_local = _Py_IMMORTAL_REFCNT_LOCAL;
Expand Down