[3.14] gh-131338: Disable computed stack limit checks on non-glibc linux (GH-134336) (#137175)
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Co-authored-by: R. David Murray <rdmurray@bitdance.com>
Co-authored-by: Kumar Aditya <kumaraditya@python.org>
Co-authored-by: Victor Stinner <vstinner@python.org>
This commit is contained in:
Miss Islington (bot) 2025-08-10 15:55:29 +02:00 committed by GitHub
parent f180fb956b
commit 1878fe814a
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2 changed files with 7 additions and 1 deletions

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@ -439,7 +439,11 @@ _Py_InitializeRecursionLimits(PyThreadState *tstate)
_tstate->c_stack_soft_limit = _tstate->c_stack_hard_limit + _PyOS_STACK_MARGIN_BYTES;
#else
uintptr_t here_addr = _Py_get_machine_stack_pointer();
# if defined(HAVE_PTHREAD_GETATTR_NP) && !defined(_AIX) && !defined(__NetBSD__)
/// XXX musl supports HAVE_PTHRED_GETATTR_NP, but the resulting stack size
/// (on alpine at least) is much smaller than expected and imposes undue limits
/// compared to the old stack size estimation. (We assume musl is not glibc.)
# if defined(HAVE_PTHREAD_GETATTR_NP) && !defined(_AIX) && \
!defined(__NetBSD__) && (defined(__GLIBC__) || !defined(__linux__))
size_t stack_size, guard_size;
void *stack_addr;
pthread_attr_t attr;