cross-riscv64-elf-gcc9 from Geckito:SDK:Main project
Select Your Operating System
Add repository and install manually
For openSUSE Factory run the following as root:
zypper addrepo https://download.opensuse.org/repositories/Geckito:SDK:Main/openSUSE_Factory/Geckito:SDK:Main.repo zypper refresh zypper install cross-riscv64-elf-gcc9