LinuxDevices: Open Source Compiler Demos Speed, Compactness With Boottime Compile Trick

“A project to build a C compiler small enough to enable C to be
used as a scripting language has released an impressive technology
demonstration: a bootloader that uses the Tiny C Compiler (TCC) to
compile a Linux kernel from source at boot-time in as little as 15

“TCCBoot is framed on creator Fabrice Bellard’s website as a
demonstration application for Bellard’s Tiny C Compiler (TCC),
described as ‘a tiny but complete ISOC99 C compiler which enables
you to use C as scripting language…'”