[Bug ada/70017] c52103x and c52104x test failure on s390x

[vogt at linux dot vnet.ibm.com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70017

--- Comment #3 from Dominik Vogt <vogt at linux dot vnet.ibm.com> ---
It looks like no more than activating Stack_Check_Probes is required.  Thanks!