elf loader for NIOS-II

I STFA but didn’t find what I was looking for.

We have an application where we’re considering interpreting ELF executables from flash at boot-time and so would like to put an ELF interpreter into our Nios-II. I’m wondering if Altera (or anyone else) has source for a Nios-II implementation for such a thing or if we’ll have to roll our own, say from libelf.

Thanks.