Sugawaray has written EFIboot, which runs Linux-style ELF binaries inside the UEFI Shell. Here’s the *full* readme:
A tool to execute an elf binary in the UEFI shell environment.
This tool executes an elf binary in the UEFI SHELL.
The name of the elf binary must be ‘test.elf’.
For more information, read the code: