any interest in JIT for bpf and npf_ncode?

[Alexander Nasonov <alnsn%yandex.ru@localhost>]

Hi,

I've been playing with sljit in the last few days. SLJIT stands for
state-less just-in-time compiler and it supports the following
architectures (from sljit.sf.net):

Intel x86-32
AMD x86-64
ARM (Including ARM-v5, ARM-v7 and Thumb2 instruction sets)
IBM PowerPC-32
IBM PowerPC-64
MIPS-32

I implemented code generation for some bpf instructions. The supported
set is rich enough to measure a performance of a real (well, almost)
bpf program. JIT code is 3-4 times faster on Ubuntu armv7 and 4.5 times
faster on NetBSD-current amd64.

Code is available on github: https://github.com/alnsn/bpfjit

Is there is interest, I can look into porting sljit to the kernel and
adding npf_ncode.

Alex