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gh-111798: Use lower Py_C_RECURSION_LIMIT in debug mode (#112124)

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* Run again test_ast_recursion_limit() on WASI platform.
* Add _testinternalcapi.get_c_recursion_remaining().
* Fix test_ast and test_sys_settrace: test_ast_recursion_limit() and
  test_trace_unpack_long_sequence() now adjust the maximum recursion
  depth depending on the the remaining C recursion.
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Victor Stinner 2023-11-16 14:52:33 +01:00 • committed by GitHub
parent 81ab0e8a4a
commit bd89bca9e2
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5 changed files with 37 additions and 5 deletions
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6
Include/cpython/pystate.h
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@ -214,7 +214,11 @@ struct _ts {
};
#ifdef __wasi__
#ifdef Py_DEBUG
// A debug build is likely built with low optimization level which implies
// higher stack memory usage than a release build: use a lower limit.
# define Py_C_RECURSION_LIMIT 500
#elif defined(__wasi__)
// WASI has limited call stack. Python's recursion limit depends on code
// layout, optimization, and WASI runtime. Wasmtime can handle about 700
// recursions, sometimes less. 500 is a more conservative limit.