A GCC cross-compiler targeting FreeBSD 12.3/13.0.
We currently build cross-compilers targeting many FreeBSD architectures. See above for more info:
x86_64-unknown-freebsdaarch64-unknown-freebsdi386-unknown-freebsdpowerpc-unknown-freebsdpowerpc64-unknown-freebsdriscv64-unknown-freebsdsparc64-unknown-freebsd
You can obtain releases from the releases page.