Seriously, whenever I need to touch anything Xilinx I cry.
PetaLinux is the most useless abstraction over Yocto ever. It does one thing well: build an image exactly as Xilinx specified. As soon as you need to change the tiniest thing the whole system implodes.
And as is tradition in this sector their whole support scheme is: "sorry, didn't do it EXACTLY like we did, so no support."
If you want to make your Embedded Linux guy happy, stay far far away from anything Xilinx.
If you want to make your Embedded Linux guy happy, stay far far away from anything Xilinx.