[Bug go/64999] s390x libgo test failure in TestMemoryProfiler

[vogt at linux dot vnet.ibm.com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64999

--- Comment #22 from Dominik Vogt <vogt at linux dot vnet.ibm.com> ---
You mean the function saveg() code in mprof.goc?

I'm actually not sure how the above patch to runtime_callers() interacts with
all the other functions that call runtime_callers().  :-/