PHYS_OFFSET, PAGE_OFFSET, TASK_SIZE, VMALLOC_START, VMALLOC_END...

Figure out how to get here: https://github.com/Xilinx/linux-xlnx/tree/b450e900fdb473a53613ad014f31eedbc80b1c90

This posts shows how to create, build and run a quick debugfs tree on QEMU.

This post is a condensed version of Mitchel Humpherys excellent post on building a minimal custom Linux kernel, creating a busybox based us