为什么在编译Linux内核和uBoot时arm-linux-gnueabi-gcc而不是arm-none-eabi-gcc？

I have some experience compiling bare metal code for ARM cortex-m devices as well as the Linux kernal, uBoot, and applications for the Beaglebone Black (BBB) (more featured ARM with MMU, for those living under a rock). It makes since to me that the cortex-m code should be compiled using arm-none-eabi-gcc (as there is no OS) and the application code for the BBB should be compiled with arm-linux-gnueabi-gcc (as there is an OS, for which system calls can be made and program loaders and shared objects that can be utilized).I have some experience compiling bare metal cod