> None of the C stdlib can be used in the kernel, either, Except the bits allowed in a freestanding environment and (stretching the definition of "used in") th

> None of the C stdlib can be used in the kernel, either, Except the bits allowed in a freestanding environment and (stretching the definition of "used in") the "nolibc" partial C standard library the kernel includes for environments that don't have any other libc available (`tools/include/nolibc`, mostly used for kernel tests where there's no userspace at all).