Simple C and ASM os for AMD64 architecture

Purpose

This is a learning project where I have fun writing a barebone x86_64 OS.

It's neither meant as a tutorial nor as a finished product in any way; it's a sandbox for me to experiment in.

If you like the idea and want to try it for yourself, I recommend following one or more of the tutorials listed in the next section.

Sources

From a combination of tutorials like:

• CodePulse OS series
• OS tutorials

Setup

Build an image for our build-environment:

docker build buildenv -t osdev-buildenv

Build

Enter build environment:

• Linux: docker run --rm -it -v "$pwd":/root/env osdev-buildenv
• MacOS: docker run --rm -it -v "$PWD":/root/env osdev-buildenv
• Windows (CMD): docker run --rm -it -v "%cd%":/root/env osdev-buildenv
• Windows (PowerShell): docker run --rm -it -v "${pwd}:/root/env" osdev-buildenv
• NOTE: If you are having trouble with an unshared drive, ensure your docker daemon has access to the drive you're development environment is in. For Docker Desktop, this is in "Settings > Shared Drives" or "Settings > Resources > File Sharing".

Build for x86 (other architectures may come in the future):

make build-x86_64

To leave the build environment, enter exit.

Run

If the build was succesfull, you should be able to run the newly created iso with:

• Windows: qemu-system-x86_64 -cdrom dist\x86_64\kernel.iso -L "C:\Program Files\qemu"
• Linux: qemu-system-x86_64 -cdrom dist\x86_64\kernel.iso
• MacOSX: qemu-system-x86_64 -cdrom dist\x86_64\kernel.iso

Cleanup

Remove the build-evironment image:

docker rmi osdev-buildenv -f