From: Of Alexei Starovoitov > one more RFC... > > Major difference vs previous set is a new 'load 64-bit immediate' eBPF insn. > Which is first 16-byte instruction. It shows how eBPF ISA can be extended > while maintaining backward compatibility, but mainly it cleans up eBPF > program access to maps and improves run-time performance. Wouldn't it be more sensible to follow the scheme used by a lot of cpus and add a 'load high' instruction (follow with 'add' or 'or'). It still takes 16 bytes to load a 64bit immediate value, but the instruction size remains constant. There is nothing to stop any JIT software detecting the instruction pair. David -- To unsubscribe from this list: send the line "unsubscribe linux-api" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
