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[3.12] GH-112215: Backport C recursion changes (GH-115083)

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Mark Shannon 2024-02-13 09:45:59 +00:00 • committed by GitHub
parent a30bb080dc
commit 4d87832d87
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14 changed files with 65 additions and 46 deletions
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Python/Python-ast.c generated
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@ -13152,15 +13152,14 @@ PyObject* PyAST_mod2obj(mod_ty t)
int starting_recursion_depth;
/* Be careful here to prevent overflow. */
int COMPILER_STACK_FRAME_SCALE = 2;
PyThreadState *tstate = _PyThreadState_GET();
if (!tstate) {
return NULL;
}
struct validator vstate;
vstate.recursion_limit = C_RECURSION_LIMIT * COMPILER_STACK_FRAME_SCALE;
vstate.recursion_limit = C_RECURSION_LIMIT;
int recursion_depth = C_RECURSION_LIMIT - tstate->c_recursion_remaining;
starting_recursion_depth = recursion_depth * COMPILER_STACK_FRAME_SCALE;
starting_recursion_depth = recursion_depth;
vstate.recursion_depth = starting_recursion_depth;
PyObject *result = ast2obj_mod(state, &vstate, t);