An Elf Odissey! #dreamos64 I recently added support for basic ELFs in my hobby #kernel but, it required me to dig into some very obscure issues caused by some changes in llvm and their linker.
Basically the introduction of large sections in #llvm broke the grub image, and caused more problems to my kernel.
I posted all the details of my debug process in my free #kofi post here: https://ko-fi.com/post/Finally-Dreamos64-is-officially-running-an-ELF-Exe-B0B41AYZW0
Today a new version of the printed version of "Osdev Notes" has been released! :)
More info in my free #kofi post: https://ko-fi.com/post/Osdev-Notes-New-printed-version-released-U7U5199LOA
The printed version is available here:
https://www.lulu.com/search?sortBy=RELEVANCE&page=1&q=osdev+notes
Major update is the replacement of the "Stivale 2" protocol with the "Limine Protocol".
The project as usual is on github:
https://github.com/dreamportdev/Osdev-Notes/releases/tag/v1.5
#programming
#operatingsystem
#kernel #assembly #x86_64 #operating_systems #selfpublishing #osdev #hobbyos #programmingbook
#Fiwix is an operating system written from scratch, based on the #UNIX architecture and fully focused on being #POSIX compatible. It's a #hobbyOS and, since it serves also for educational purposes, the #kernel code is kept as simple as possible for the benefit of students and OS enthusiasts.
It follows the #SystemV Application Binary Interface (ABI) and it also aims for #Linux 2.0 system call compatibility
Version 3.4 was released on November 15th: https://www.fiwix.org/news.html
Habemus ELFs! Not the fantasy creatures. But just a set of organized bit and bytes.
I managed to make my #kernel #dreamos64 launch its first ELF executable, although is just printing a message.
ELF support is still very limited, but, is still a great achievement for my toy project.
More info on my free #kofi post: https://ko-fi.com/post/Habemus-ELFs-Q5Q6160TJI
#osdev #operatingsystemdevelopment #programming #systemprogramming #kernelprogramming #osdever #operatingsystem #hobbyos #hobbykernel
After more than two months another Dreamos64 update. Not new features but fixes and improvements, full story on #ko-fi
https://ko-fi.com/post/Dreamos64-Status-update-U6U71340LC (free).
I found a nasty bug in a core memory function, where i was returning true instead of false and viceversa. Also some code refactor and documentation improvements.
Habemus #scrolling (nearly) :)
I'm working on adding framebuffer scrolling in #Dreamos64
Initially it will be just scrolling the text up, when it reach the last line.
#osdev #kernel #operatingsystemdevelopment #programming #framebuffer #systemprogramming #kernelprogramming #osdever #operatingsystem #hobbyos
I don't think it will interest anyone, but i'm happy to share it nevertheless! :D
My #operatingsystem system (the #kernel i'm writing) has moved its first steps into #userspace! Below a screenshot showing the logging of two #threads running a supervisor idle and a user idle.
#osdev #kernel #programming #dreamos64 #hobbyos #operatingsystemdevelopment #toykenel
More info about the project are here: https://github.com/dreamos82/Dreamos64
