The focus of ELLCC is making LLVM/Clang as a cross-compiler for ARM, i386, MIPS, Microblaze, PowerPC, PowerPC 64, and x86_64 architectures. The project uses NetBSD-derived standard C libraries, GNU binutils and GDB, and QEMU as the target environment for testing. The developer behind ELLCC has modified the NetBSD libraries to use them in Linux user-space emulation under QEMU.
Richard Pennington, the ELLCC developer, has started building and running some NetBSD user applications under all of the aforementioned targets. Pennington says, "The environment has turned out to be very nice for build and testing cross compiled exectables. I'm hoping to have something that I can call a release soon."
For those wanting to learn more about this LLVM/Clang compiler project, read the status of ELLCC mailing list message and/or visit ELLCC.org.