rbpf
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Support for 32-bit jump instructions
eBPF in Linux kernel just got extended to use the 0x06 class of instructions for 32-bit jumps. See the merge commit and its parents. This should land in kernel 5.1.
To keep rbpf compatibility with Linux eBPF as close as possible, it would be nice to have support for those instructions for the interpreter as well as for the JIT in the future.
Also, atomics: https://lore.kernel.org/bpf/[email protected]/t/#u