[$] Next steps for BPF support in the GNU toolchain

Support for BPF in the kernel has been tied to the LLVM toolchain since theadvent of extended BPF. There has been a growing effort to add BPF supportto the GNU toolchain as well, though. At the 2025 GNU Tools Cauldron, thedevelopers involved got together with representatives of the kernelcommunity to talk about the state of that work and what needs to happennext.