EFI-Clang: build UEFI apps with Clang and LLD

efi-clang: build UEFI applications with the Clang compiler and LLD linker. Of course, you’ll need to have those installed. I tested this with Clang v. 6.0.0. I use Arch Linux, so I installed pacman -S clang lld. […] If you built a similar application using gnu-efi, you’ll notice this executable is substantially smaller. […]

https://github.com/yoppeh/efi-clang