>"UEFI is a proprietary and closed-source operating system, with a codebase almost as large as the Linux kernel"
Does anyone know how they were able to compare the size of the codebase given that UEFI is proprietary/closed-source?
Does anyone know how they were able to compare the size of the codebase given that UEFI is proprietary/closed-source?
Linux also lacks the most basic level of the firmware (which is most likely handled Coreboot? I'm not fully clear on what NERF is overall). A much smaller proportion of Linux codebase would be running on a given device, as compared to the EDK-II, though. Who knows. /kernel and /arch/x86 together make about 440k SLOC.
Funnily enough, this is actually the second time a "Linux BIOS" has been tried. The first time was called LinuxBIOS (later renamed to Coreboot), and the idea was quite literally to put a kernel on ROM and have as little firmware as possible to get to a booted system.
Programming languages and styles can vary in verbosity a lot. For example, if UEFI is written in some form of assembler code, then you quickly get a lot of lines of code while the binary doesn't grow particularly. On the other hand, high-level programming languages like Java, or even moreso functional and logic programming languages like Haskell and Prolog respectively, can generate huge binaries out of even just a few lines of code.