[Bug target/114993] ICE when using bpf-unknown-g++

[dkm at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114993

--- Comment #1 from Marc Poulhiès <dkm at gcc dot gnu.org> ---
After discussing on IRC, C++ (or anything != C) is not supported by BPF.
The fix is probably to display an error when using anything else than the C FE.

The Rust FE gives another error:
https://c.godbolt.org/z/TeWa3cshd

bpf-unknown-gcc: warning: <source>: linker input file unused because linking
not done

Not sure why it does not even use crab1 in this case.