JIT

JIT in Python via LLVM
http://eli.thegreenplace.net/2015/building-and-using-llvmlite-a-basic-example/
http://eli.thegreenplace.net/2012/08/10/building-and-using-llvmpy-a-basic-example

http://nullprogram.com/blog/2015/03/19/  A Basic Just-In-Time Compiler
http://www.tedunangst.com/flak/post/now-or-never-exec how to add PROT_EXEC on mmap