mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-08-04 00:48:58 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 8

[3.12] GH-107263: Increase C stack limit for most functions, except _PyEval_EvalFrameDefault() (GH-107535) (#107618)

Browse source 
GH-107263: Increase C stack limit for most functions, except `_PyEval_EvalFrameDefault()` (GH-107535)

* Set C recursion limit to 1500, set cost of eval loop to 2 frames, and compiler mutliply to 2.
(cherry picked from commit fa45958450)

Co-authored-by: Mark Shannon <mark@hotpy.org>
This commit is contained in:
Miss Islington (bot) 2023-08-04 03:25:51 -07:00 • committed by GitHub
parent 58af2293c5
commit 98902d6c05
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
21 changed files with 57 additions and 45 deletions
Download patch file Download diff file Expand all files Collapse all files

8
Python/ceval.c
View file

@ -637,6 +637,11 @@ static inline void _Py_LeaveRecursiveCallPy(PyThreadState *tstate) {
# pragma warning(disable:4102)
#endif
/* _PyEval_EvalFrameDefault() is a *big* function,
* so consume 3 units of C stack */
#define PY_EVAL_C_STACK_UNITS 2
PyObject* _Py_HOT_FUNCTION
_PyEval_EvalFrameDefault(PyThreadState *tstate, _PyInterpreterFrame *frame, int throwflag)
{
@ -691,6 +696,7 @@ _PyEval_EvalFrameDefault(PyThreadState *tstate, _PyInterpreterFrame *frame, int
frame->previous = &entry_frame;
cframe.current_frame = frame;
tstate->c_recursion_remaining -= (PY_EVAL_C_STACK_UNITS - 1);
if (_Py_EnterRecursiveCallTstate(tstate, "")) {
tstate->c_recursion_remaining--;
tstate->py_recursion_remaining--;
@ -990,7 +996,7 @@ exit_unwind:
/* Restore previous cframe and exit */
tstate->cframe = cframe.previous;
assert(tstate->cframe->current_frame == frame->previous);
_Py_LeaveRecursiveCallTstate(tstate);
tstate->c_recursion_remaining += PY_EVAL_C_STACK_UNITS;
return NULL;
}