buildroot

config BR2_PACKAGE_GNU_EFI

    bool "gnu-efi"

    depends on BR2_i386 || BR2_x86_64

    help

      Develop EFI applications for IA-64 (IPF), IA-32 (x86), and

      x86_64 platforms using the GNU toolchain and the EFI

      development environment.

​

      http://gnu-efi.sourceforge.net/