🌿 Week 17 Hobby Kernel Dev in C, x86: Physical memory allocator pt2 🌿

Рет қаралды 10,649

2 ай бұрын

(detailed timestamps in comments)
#livecoding #softwareengineering #operatingsystem
discord: discord.gg/XsgpqpVxNu
Welcome! This is my chill Operating Systems development "gardening" project.
The "gardening philosophy" is to have fun, above everything else. This means taking baby steps and locking in small wins before building up for more ambitious projects. People also call this "hacking" on something.
My personal goal & vision is to build a minimal, high quality OS foundation which can be used for play, experimentation, and learning.
I'm personally not an expert systems programmer, although I'd like to be someday. Right now, but I'm just an intermediate one - I worked in infosec for 7 years, and music tech for 3 years. I've been exposed to the Linux kernel in both settings, but in highly constrained contexts, and mostly reading code, not writing it.
0:00 start

Пікірлер: 24

@offlinemark 2 ай бұрын

0:01: 🧠 Exploration of physical memory allocation in kernel development, focusing on learning core concepts and improving code quality. 8:37: 💻 Summary of physical memory allocation process in kernel development 18:05: 💻 Discussion on implementing a physical memory allocator function in a hobby kernel project. 28:56: 💻 Discussion on transitioning from C to C++, implementing assertions, returning pages to the free list, and testing the code. 37:11: 🔍 Discussion on debugging kernel memory allocation issues and handling optimizations in C++. 50:39: 🤯 Development process of an operating system kernel, focusing on x86 architecture and memory allocation. 1:03:20: 🧠 Understanding the management of page tables, linear to physical mappings, and virtual addresses in kernel development. 1:13:36: 💻 Exploring learning strategies for systems programming in C and Java, emphasizing step-by-step progression and project-based learning. 1:23:33: 🧠 Exploration of hierarchical paging structures in kernel development, focusing on extracting page table information from a virtual address. 1:38:42: 🧠 Understanding the process of converting physical addresses to kernel virtual addresses in x86 architecture. 1:52:15: 🧠 Development process of implementing page table entry and memory allocation logic. 2:04:12: 💻 Developing a hobby kernel in C with a focus on physical memory allocation. Recapped using Tammy AI

@ramadhanafif 2 ай бұрын

Mad work. Appreciate that you post this online.

@offlinemark 2 ай бұрын

Thank you very much Afif 🙏

@offlinemark 2 ай бұрын

This is more meaningful for me than you know❤️

@somratdutta 2 ай бұрын

good stuff man! Dont stop

@offlinemark 2 ай бұрын

thanks somrat!! you make awesome videos 🙌

@443zpaj Ай бұрын

Awesome Project!. BTW I really like the name of your OS!. GardenOS :)

@offlinemark Ай бұрын

thank you! :)

@mohammedissam3651 Ай бұрын

Good stuff

@offlinemark Ай бұрын

thank you!

@nedmon12 Ай бұрын

Bro I thought the leaf was for weed smh

@offlinemark Ай бұрын

lmao

@user-xz4rl8gv2x Ай бұрын

Hey awesome video! I recently started learning more about OS, would you say the "OS: Three Easy Pieces" book is a good resource to learn the theory behind it? I've also heard that OSDev wiki is a good one

@offlinemark Ай бұрын

I haven't read that one personally. I think the OSDev wiki is ok, but isn't super structured or rigorous. I would turn to it for very practical tutorials on specific topics, but don't see it as a replacement for a textbook or a course. imo the more important thing is to start with literally anything, vs deciding which is the 'optimal' action :)

@AlexAlex-ei7zf Ай бұрын

Hello, bro! What is your opinion about Rust program language? Is it fully able to write your own module for Linux? I gonna to try it. It will be for security purpocess. A lot of people think it is very hardening for memory protection, but I laugh when trying to work with a network there - a lot of functions doesnt work without "unsafe" - macross))))

@offlinemark Ай бұрын

My opinion is very positive overall about Rust, although I never learned the language. It seems like a strong candidate to replace C++. It is interesting that it managed to make it into Linux, while C++ never did.