don't default to generic_fp without frame pointers
don't default to generic_fp without frame pointers

I.e. on x86-64 and riscv.

alk/gperftools,alk/gperftools,alk/gperftools,gperftools/gperftools,gperftools/gperftools,gperftools/gperftools,alk/gperftools,gperftools/gperftools