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bpo-38965: Fix stuck in test_stack_overflow tests. #17462

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bpo-38965: Fix stuck in test_stack_overflow tests. #17462

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2 changes: 2 additions & 0 deletions Misc/NEWS.d/next/Library/2019-12-04-08-46-23.bpo-38965.Yl4gI2asdfa.rst
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Original file line number Diff line number Diff line change
@@ -0,0 +1,2 @@
After update to GCC10, the testcase is stuck and
a pragma needs to be added.
5 changes: 5 additions & 0 deletions Modules/faulthandler.c
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Expand Up @@ -1169,6 +1169,11 @@ faulthandler_fatal_error_py(PyObject *self, PyObject *args)
#endif
static
uintptr_t
#ifdef __GNUC__
/* For the very same reason, the GCC compiler can turn the tail
* call into a loop. */
__attribute__((optimize("-O0")))
#endif
stack_overflow(uintptr_t min_sp, uintptr_t max_sp, size_t *depth)
{
/* allocate 4096 bytes on the stack at each call */
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