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gh-130396: Move PYOS_LOG2_STACK_MARGIN to internal headers (#135928)

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Move PYOS_LOG2_STACK_MARGIN, PYOS_STACK_MARGIN,
PYOS_STACK_MARGIN_BYTES and PYOS_STACK_MARGIN_SHIFT macros to
pycore_pythonrun.h internal header. Add underscore (_) prefix to the
names to make them private. Rename _PYOS to _PyOS.
This commit is contained in:
Victor Stinner 2025-07-01 15:18:17 +02:00 • committed by GitHub
parent 0e19db653d
commit 28940e8e48
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GPG key ID: B5690EEEBB952194
5 changed files with 34 additions and 32 deletions
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14
Python/ceval.c
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@ -346,13 +346,13 @@ _Py_ReachedRecursionLimitWithMargin(PyThreadState *tstate, int margin_count)
{
uintptr_t here_addr = _Py_get_machine_stack_pointer();
_PyThreadStateImpl *_tstate = (_PyThreadStateImpl *)tstate;
if (here_addr > _tstate->c_stack_soft_limit + margin_count * PYOS_STACK_MARGIN_BYTES) {
if (here_addr > _tstate->c_stack_soft_limit + margin_count * _PyOS_STACK_MARGIN_BYTES) {
return 0;
}
if (_tstate->c_stack_hard_limit == 0) {
_Py_InitializeRecursionLimits(tstate);
}
return here_addr <= _tstate->c_stack_soft_limit + margin_count * PYOS_STACK_MARGIN_BYTES;
return here_addr <= _tstate->c_stack_soft_limit + margin_count * _PyOS_STACK_MARGIN_BYTES;
}
void
@ -448,8 +448,8 @@ _Py_InitializeRecursionLimits(PyThreadState *tstate)
_tstate->c_stack_top = (uintptr_t)high;
ULONG guarantee = 0;
SetThreadStackGuarantee(&guarantee);
_tstate->c_stack_hard_limit = ((uintptr_t)low) + guarantee + PYOS_STACK_MARGIN_BYTES;
_tstate->c_stack_soft_limit = _tstate->c_stack_hard_limit + PYOS_STACK_MARGIN_BYTES;
_tstate->c_stack_hard_limit = ((uintptr_t)low) + guarantee + _PyOS_STACK_MARGIN_BYTES;
_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__)
@ -469,9 +469,9 @@ _Py_InitializeRecursionLimits(PyThreadState *tstate)
// Thread sanitizer crashes if we use a bit more than half the stack.
_tstate->c_stack_soft_limit = base + (stack_size / 2);
#else
_tstate->c_stack_soft_limit = base + PYOS_STACK_MARGIN_BYTES * 2;
_tstate->c_stack_soft_limit = base + _PyOS_STACK_MARGIN_BYTES * 2;
#endif
_tstate->c_stack_hard_limit = base + PYOS_STACK_MARGIN_BYTES;
_tstate->c_stack_hard_limit = base + _PyOS_STACK_MARGIN_BYTES;
assert(_tstate->c_stack_soft_limit < here_addr);
assert(here_addr < _tstate->c_stack_top);
return;
@ -479,7 +479,7 @@ _Py_InitializeRecursionLimits(PyThreadState *tstate)
# endif
_tstate->c_stack_top = _Py_SIZE_ROUND_UP(here_addr, 4096);
_tstate->c_stack_soft_limit = _tstate->c_stack_top - Py_C_STACK_SIZE;
_tstate->c_stack_hard_limit = _tstate->c_stack_top - (Py_C_STACK_SIZE + PYOS_STACK_MARGIN_BYTES);
_tstate->c_stack_hard_limit = _tstate->c_stack_top - (Py_C_STACK_SIZE + _PyOS_STACK_MARGIN_BYTES);
#endif
}