LibC , init system Yocto for sama5d27 som1 ek1 board

[Gaston]

Hello, I m using yocto project to build kernel image and rootfs for my sama5d27 som1 ek1 board following the steps of this link :
https://www.at91.com/linux4sam/bin/view ... EKMainPage

Now my board is bootable.
I thnik that poky uses sysVinit , glibc and arm 32 bit instructions by default, but i want to prove these so I just want to ask in which file I can find my current system init, C library, type of instructions used for my image ?

Thank you.