need info on building images using gcc-arm for A53

Hi,

I am using an NXP imx8 quadmax-mek evaluation kit. I can build the yocto image build and have the board booting.

I want to write some standalone code  for the A53 that I can link to a specific address in memory so I can load it into RAM using U-boot and jump to it.

I am running a VM (virtualbox) on my Dell Laptop with ubuntu-188.04.

I downloaded the gcc-arm-2020.11-x86_64-aarch64-none-elf image from the Arm developers download page, and have it installed.

I am looking for a refrence on how to build and link an image. Is there a users guide that I am missing?

Thanks

Doug