glibc is under GPLv2 and I find it to be the defining piece of GNU/Linux system. The coreutils are under GPLv3 and therefore projects like Tizen use pre-GPLv3 v

glibc is under GPLv2 and I find it to be the defining piece of GNU/Linux system. The coreutils are under GPLv3 and therefore projects like Tizen use pre-GPLv3 version of such software. So parts of GNU ecosystem are popular on embedded and the others are not.