ABIs have changed after we did this. We get the first long-term stable ABI with 4.15 kernel and glibc 2.27 (hopefully). At that point Fedora, Debian, and others can reboot efforts.
That was great work and it made RISC-V look that much more viable to me. To think that thousands of programs are ready to go whenever the hardware arrives is really amazing. It's unfortunate that some of it has to be repeated after the ABI changes, but that seems a small price to pay in the grand scheme of things. But then I'm not the one who did it or has to redo it ;-) Anyway, great job guys!