don't warn on rwx segments

Extend Mapping in the Page Table

Makefile: pipe output of stderr to stdin for dd command

Merge pull request #1 from mlechu/main

Add support for building on ARM

debugging targets and makefile fix

logging: print ERROR when using error macro

fixing exception table size and pringing when an unsupported exception happened

adding a basic page table, one-to-one mappings

updating linker script to include the page-table section

update Makefile to include the new files

update boot-sequence to enable caches

adding header guard in logging.h

adding mmu maintenance functions

adding fache control functions