building an OS (all streams)

Currently Playing: building my own operating system (week 81, lldb, c++)

(detailed timestamps in comments) #livecoding #operatingsystem #coding welcome: https://offlinemark.com/welcome discord: https://discord.gg/XsgpqpVxNu Welcome! I’m an aspiring systems programmer. Professionally, I used to work in infosec, but now I work on music production software & hardware. I stream OS/kernel development every week for 2 hours. (I’ve done this for over 75 weeks in a row! Sundays 10a-12 ET) From February 2024 to May 2025, I streamed myself doing all the labs for MIT’s old Operating Systems Engineering course (6.828 (2018)). Through doing this, I became very familiar with JOS, which is the x86 OS used for the course. This is the OS which I work with in all of my streams. I had almost no experience with OS development when I started, although I did have much experience with programming and low level concepts. I did the coursework because I wanted to write my own OS, but felt I wasn’t ready. Now, from May 2025 to present, I’m pursuing my own learning agenda with OS development. Eventually I will start writing my own OS when the time is right! If this resonates with you, please subscribe and I'll see you in a stream :) 00:00 Start 00:10:01 Adding LLDB debugger support to replace GDB 00:42:31 Setting up basic C++ support in CMake build 01:22:01 Implementing virtual functions in kernel 01:31:08 Fixing build system issues with C++ integration 01:44:46 Explaining runtime operators and deletion 01:45:34 Discussing polymorphism use cases in OS development 01:51:57 Exploring practical examples of interfaces in kernel 01:53:25 Comparing C vs C++ implementation approaches 01:58:11 Understanding virtual function edge cases 02:03:45 Finalizing C++ runtime implementation