DragonOS

This is a 'play' project to create an OS from scratch

🚀 Features

• Uses GRUB2 to load, using Multiboot
• loads the page direcory table, and page entry tables with the kernel addresses
• switches to virtual mode
• should call kernel_main

TODOs

• Set up paging
• create bit arrays from my memory map showing available and allocated memory and which is read only
• Set permissions correctly on existing memory (.text, .rodata, & Bios)
• create functions mapKernelPage, mapKernelROPage, mapUserPage, mapUserROPage, unmapPage
• set up heap processing

🛠️ Prerequisite

• you will need an i686 cross compiler
• you can go to osdev.org for how to build this (https://wiki.osdev.org/GCC_Cross-Compiler)

📦 Building and Running

• clone the repository
• run the makefile in the root directory

Credits

• so far just OSDev

• OSDev contributors Octocontrabass, sebihepp, and nullplan for their help getting to the Higher Half

License

Disributed under GPL3