The Go porting policy has a section on broken ports, https://go.dev/wiki/PortingPolicy#broken-ports. The GOOS=freebsd GOARCH=riscv64 port was marked broken in August 2025 (CL 691835), with the following issues being relevant:

• The port stopped building with cgo, failing to build archive/tar package during all.bash. Tracked in the following issue:
  • riscv64: can't build on FreeBSD with cgo #73516 (Resolved by now.)
• cmd/compile,runtime: nosplit stack over 800 byte limit on freebsd/riscv64 #76062 (Resolved by now.)
• There was no builders running, tracked in the following issue:
  • x/build: gotip-freebsd-riscv64 builder is missing #73568 (A builder was added and is running by now, but not yet passing all.bash in the main repo.)

This is an umbrella issue to track the status of the port.

CC @golang/freebsd, @golang/riscv64, @golang/release.