[$] Supporting BPF in GCC

The GCC project has been working to support compiling to BPFfor some time. Jose Marchesi and David Faust spoke in an extended session at the 2024Linux Storage,Filesystem, Memory Management, and BPF Summitabout how that work has been going, and what is left for GCC to be on-par withLLVM with regard to BPF support. They also related tentative plans for howGCC BPF support would be maintained in the future.