GRU Devlog 23 - more olibc and start of occ (and more projects ideas!)
I think this week was productive. I have done a lot of things to olibc. First I finally implemented working FILE struct. That required to implement malloc and free, so we also have it now! Then stdio.h was implemented. Still need to make a lot of functions, but we already have most useful ones (for examples every C11 printf functions implemented and fully working). Also finally stdin/stdout/stderr file descriptors working properly.
We have full implemented <ctype.h> header now! It wasn’t really hard.
This year I started from tryes to make occ - GRU C compiler (maybe it will be GRU Compiler Collection in future). A lot of things will need to be implemented and a lot of new to know! I hope it will be fun :)
Happy New 2022 Year! I hope we will make a lot of new tools this year. And more people will join us :)
Hope you liked this post! If you would like to help us, contact me via email, xmpp or irc :)
GRU Devlog 22 - olibc, liblinux, mailing list
Happy Chirstmas! Next GRU Devlog will be next year so Happy New Year! I hope GRU will grow and grow next year :D
On last Sunday we have created mailing list after devlog. Currently it is not active, but but you can message us there - gru@lists.tildeverse.org. Then I tryed to make FILE struct for liblinux, but it wasn’t working so it needed to be reimplemented.
Then youngchief submitted some changes to our webpage. Also robyndrake contributed some fixes to coreutils.
Also I had implemented printf and vprintf! It currently have %c, %d, %s so it will be useful for debugging. I have tryed to implement snprintf, but i had several problems with it so it is not done yet.
Then chunk contributed logo for us! I think it looks nice!
Last useful thing that I have done this week is very minimal FILE, it currently just has fd and nothing else.
I hope we will make more cool things and finish current projects next year!
Hope you liked this post! I wish everyone cool New Year! If you would like to help us, contact me via email, xmpp or irc :)
tags: gru, olibc, liblinux, mailing-list
GRU Devlog 21 - olibc
This week I also was making olibc. Now it is published! I have mostly implemented <string.h>, but there still some funcs that require <locale.h>, so they are not implemented yet.
I found out why olibc wasn’t giving correct return value after program is executed. It was because liblinux wasn’t exiting correctly, so it received some random return values from stack.
Also a lot of testing were done. I have found out that several functions wasn’t working correctly
and fixed it. We have shell script for testing that compares results from our libc and libc that
installed on user’s machine. It prints a diff output if test was failed. It also have other
features, if you want you can check it by running test.sh --help by yourself.
Because of it I have found that several functions were wrong implemented. But now finally everything is working and strtok is correctly implemented!
Also this blog finally moved totally from my webpage, so we can move this site on different server just by cloning it from codeberg or tildegit
Hope you liked this post! If you would like to help us, contact me via email, xmpp or irc :)
GRU Devlog 20 - olibc
This week I was making olibc. I was implementing <string.h>. Also I was fixing liblinux to
be able to include it without need to use full path in #include. I had several other issues
with it and also fixed them.
My current goal is to implement <string.h> and after that I am planning to publish it. Currently most of funcs are implemented. Making strtok now but all other functions need locale.h and I don’t know yet how it will be implemented. But it is already cool that we have most of functions that should be in <string.h>!
Also we now have gru webpage on codeberg! Maybe next week I will move all devlogs to gru webpage so it will be easier to move.
Hope you liked this post! If you would like to help us, contact me via email, xmpp or irc :)
GRU Devlog 19 - gic and several libs
This week started with making gic (maybe name will be change). As I have written before it is going to be suckless ii clone. Also I started making girclib - simple C library for irc protocol. I think it will be published as separate project, because I would like to make it for both: client and server. I don’t yet how it will be done but we will see…
Then I thought that would be cool to have own libc, but have no knowledge how it speaks with OS. Then I understood that on linux it is working via syscalls. So started making liblinux - C library for linux syscalls. Using it we won’t need to use assembly a lot in our libc. Currently write and read syscalls are done and programmer can use it if passed -I, -L and -l flags to compiler. And it is already published! (check codeberg or tildegit)
After understanding how to create proper makefile with liblinux, I started making olibc. Currently it has very tiny number of features. But string.h is mostly done! I don’t know when I will fill that it will be ready enough to be published, but hope to have useful functions and test suit there till that time.
When olibc will be done enough I am going to start making C compiler (already have some code, but it is old and I not understand how it works, so need to be rewritten). Also I hope that we will have enough toolchain (or I will have enough knowledge to implement things that are not done faster) for our own Linux or BSD distribution. But that will be in future…
Hope you liked this post! If you would like to help us, contact me via email, xmpp or irc :)
tags: gru, gic, girclib, liblinux, olibc, libs
GRU Devlog 17-18 - coreutils, EGG and ideas
Last week I didn’t make devlog because was busy and haven’t done anything useful except mkdir for coreutils.
This week I started from try to make something in framebuffer but currently nothing, because I can’t even understand why my code can’t see size of my display. I think E will require making something like Elib for easier communicating with E (but it will be in very far future…)
Then I made echo and very simple ls for coreutils. I am going to add more flags to ls next week. This week I also have made simple irc bot in python, so I will try to make simple clone of suckless ii on C (i think name gic is now really good so if you have ideas please suggest them to me). Currently I don’t reallly understand how to work with sockets but I will try to do something.
Hope you liked this post! If you would like to help us, contact me via email, xmpp or irc :)
GRU Devlog 16 - ormp and EGG
This week i was working on one more new project - ormp. It will be terminal multiplexor. Currently i am doing it in ncurses. For current time it is not working - can just handle input but not display it.
Also i have an idea for new projects - EGG (Extended/Exciting GRU GUI). I am planning some proj in this category - eggwm, eggterm, eggmenu and E. E would be a new display server. We will need to have it for Orion in future. Currently i am planning to do it or on fbdev or on DRM/KMS.
Also now yemu can be compiled with different compilers, -pedantic flag was added to makefile and all errors fixed.
And now our channels are bridged via matterbridge: irc on ~chat, irc on libera and xmpp muc.
Hope you liked this post! If you would like to help us, contact me via email, xmpp or irc :)
tags: gru, ormp, egg, yemu, xmpp, irc
GRU Devlog 15 - ocpu, yemu and licenses
This week wasn’t very productive. I was working on one of my personal projects.
I have added ADD for registers, INC, DEC and NOP instructions.
Also codeberg informed me that yemu has to have license, and I fast added MIT license to all our projects.
Hope you liked this post! If you would like to help me, contact me via email, xmpp or irc :)
tags: gru, ocpu, yemu, license
GRU Devlog 14 - ocpu and yemu
This week I was working on ocpu emulator. So using it we can know if specifications can be implemented. It helps me adding some description to it.
First I made yemu a bit modular, so you need to add several lines to main file and then building your emulator based on template (that should be placed in docs one day). Now if someone would like to add some architecture to our emulator they won’t need to rewrite it from scratch.
I also added –system flag to yemu so architecture can be choosen more user-friendly way.
Currently in ocpu emulator only mov and add instructions are implemented. We also added some description to commands in specifications, so it is easier to understand what it should do
Hope you liked this post! If you would like to help me, contact me via email, xmpp or irc :)
GRU Devlog 13 - ocpu thoughts and some elecronics
This week was very busy week at school and I had no time for programming.
But in the start of week I was thinking about making ocpu specs more Turing-complete. I still think it is not done but maybe it will in some time (and of course more description required).
But I had time to buy some transistors and other electronics. Currently I am trying to make half-adder.
I have created tiny log page - lolcpu. I am going to post there some of my electronic ideas, circuits and progress in doing some electronic things.
Hope you liked this post! If you would like to help me, contact me via email, xmpp or irc :)
tags: gru, lolcpu, ocpu, transistors, electonics
GRU Devlog 12 - yemu, gasm and ocpu
This week I have done several new instructions for yemu. For example all transfer instructions.
Also I have rewritten gasm to support 6502, published it and it should help me with debugging yemu. It supports not very a lot instructions but I hope it is good start.
But I think the coolest what I did this week is ocpu proccessor specification. Currently it is draft but i have already published it here. I hope this specifications will be Turing complete and we will try to implement it in real world. But firstly we need to make this specififcations complete, assembler and emulator for it.
Also smlckz’s idea was to make translator from ocpu assembler instructions to avr to emulate it on arduino!
Hope you liked this post! If you would like to help me, contact me via email, xmpp or irc :)
GRU Devlog 11 - yemu and channel on libera.chat
I am making this devlog a bit earlier, because I will be busy on weekends.
This week I didn’t have plan, but it seems I have done some things to yemu: added loading programs from binary file and several instructions - TAX, TAY and NOP.
I think gasm will be made for 6502 firstly, because it is easier then x86 and it would help in testing yemu.
I was trying to make some daily notes in Org Roam (and moved devlog notes there), but it wasn’t very success, but I hope to do it more often :)
Also I have registered #gru channel on libera, so you can join us also on libera.chat :)
Hope you liked this post :). If you would like to help me, contact me via email, xmpp or irc :)
tags: gru, yemu, libera, org-mode, org-roam
GRU Devlog 10 - orsh now like proper shell and gasm
Hooray! Today is 10’s GRU Devlog! :)
This week i was trying to make notes to org document, to not forget something and put TODOs there for future weeks.
First several days was the most valuable - readline support and signal handling! This means you can use emacs-like bindings there (but i think readline also supports vi bindings, so maybe i will add them too!)
Also we now have very minimal completion support there :), but still proper function need to be added for that (currently only filenames completion)
Orsh also has one session history, so you don’t need to rewrite command from scratch now
And I have started to use it as my main (but had some problems after chsh, so currently is autostarts after bash and i can exit from there any time i will need)
Then I have started making our own assembler - gasm. Currently it only supports NOP, so i haven’t published it yet.
This week I also registered to ~news and shared devlog there (i think this devlog also will be there ;) ) If you have lobste.rs account please contact me to invite me, if you can, because it may advertize GRU more!
Today (Sunday) we had first testing GRU meeting via Jitsi. Thanks to r1k for joining. We need to make something like plan our schedule (to know about what to speak) and discuss meeting time better.
Hope you liked this post and you will join our XMPP muc (if you are not already there) :). If you would like to help me, contact me via email, xmpp or irc :)
tags: gru, org-mode, gasm, orsh, meeting, lobste.rs, tilde.news
GRU Devlog 9 - orsh, orion, bootloader, GRU xmpp room and logo
This week I didn’t commited a lot, but started some new projects. I made orsh signal handling working (so it won’t exit on ^C) and homedir “handling” (can replace homedir in prompt with ~, and you can use ‘cd ~’ or just ‘cd’ to change dir to homedir)
Also I started making bootloader, but for now it can only detect what CPU is (intel if x86 and amd if x86_64), some additional instructions (msr) and if apic is avalible.
I was trying to make something with orion fs, maybe it will use pak files for initrd. Currently i am making archiver for it, but after that i will need to understand more how vfs working and rewrite initrd to use pak files.
We now have xmpp room (gru@conference.hmm.st) and logo! Thanks to chunk for it!
I was thinking about making weekly or monthly “conferences”. We could do it via jitsi tildeverse instance or tilde.tel (tel.tilde.org.nz) conference. I think jitsi is better, but we should try tilde.tel confernce at least once, why not? :)
Hope you liked this post and you will join our XMPP muc :). If you would like to help me, contact me via email, xmpp or irc :)
tags: gru, orion, orsh, xmpp, tilde.tel, jitsi
GRU Devlog 8 - orsh and published initrd
This week I have published initrd, but it is not working as expected.
Also I have started one more project - orsh. It is one more shell, but now in C. Maybe it will be easier to port to Orion. It already supports ; but they are working a bit weird.
Also in orsh you can work with environment variables. From today’s morning I am trying to replace bash with it, but still a lot need to be done.
Hope you liked this post and if you would like to help me, contact me via email, xmpp or irc :)
GRU Devlog 7 - keyboard, paging and WIP initrd in Orion
This week I was improving Orion. First I made keyboard working, next day paging! Also I have added several new LibC functions. Today I have made scrolling working.
Last few days I was trying to make initrd working (this required heap implementing so I also did that but I don’t know if it works correctly). Currently it can only output /dev directory.
But I made something wrong with %x in printf and it can display weird chars first and then contents of files!
Hope you liked this post and if you would like to help me, contact me via email, xmpp or irc :)
GRU Devlog 6 - yemu, published gxt and interrupts working in Orion
This week I have published gxt, but it currently works as more (only down scrolling). Also it has a lot of of runtime error (Segmentation fault and others).
I have started working on yemu - Yet another EMUlator. It currently supports only 6502 proccessor with tiny number of instructions (LDA, LDX and LDY)
Today we have fixed interrupts in Orion and now I can implement timer, paging, keyboard and a lot of other things (thanks to quinn and smlckz from tilde.chat)
Hope you liked this post and if you would like to help me, contact me via email, xmpp or irc :)
GRU Devlog 5 - First contribution from other person, coreutils and gxt (tui text editor)
This week I had a lot of new ideas. But I think we have to work on something that have already been started. Also we now have one more coreutils rewrite (now on C to more easily port it to Orion in future).
Also i have started working on some projects that is not ready to be published yet. One of them is gxt - tui text editor.
Currently it can only move cursor and display files. But I think I’ll publish it next week when editing will be working.
Bad news is that my school lessons will start next week so maybe this devlogs won’t be published every week, because of not enough work done. But I don’t know, maybe I’ll have enough time.
Also good news - we have first contribution on codeberg to grsh. I didn’t know this person (because he is not from tildeverse :) ), so it is cool!
Hope you liked this devlog! If you can somehow help us, please contribute to our projects on tildegit/codeberg and/or message me in someway :)
tags: gru, coreutils, contribution, gxt, grsh
GRU Devlog 4 - more projects started, webpage for GRU and organizations on tildegit/codeberg
In first days of this week I thought it will be not very productive. But I was wrong.
We now have webpage and organizations on tildegit/codeberg:
Also I am working on some new projects:
orcc - GRU/Orion Compilers Collection (but currently I am working only on lexer so it is not published yet)
gasm - GRU assembler (maybe will be part of GRU binutils. Also not published yet)
hexutils - I think hexdump, xxd and some other utils will be in this project
Also I tryed to advertize GRU on ~chat, some users liked us, so maybe soon someone will help me with all this.
And of course if you can help me please contact me in someway! :)
tags: gru, orcc, gasm, hexutils, webpage
GRU DevLog 3 - Orion and dreams about GRU software future
This week I was trying to make interrupts, paging and other memory things working in Orion. I found this guide and tried to follow it without rewriting the whole project: http://www.jamesmolloy.co.uk/index.html
For now only Global Descriptor Table maybe working.
My current goals/dreams:
make filesystem (the coolest would be make Ext2 driver)
build GCC hosted compiler (this will help GCC understand our OS better)
My very future dreams:
make kernel, libs, ports and soft in different repos
make proper way to make “distros” on our kernel
make some website with mirror of ports scripts (like in Serenity OS but not in one repo with everything and tool for searching and downloading ports from that mirror)
maybe (if i will work a lot on this projects) I’ll make one more account on tilde.team for our organisation (domain name - gru.ttm.sh, is cool), but i’ll ask admins about that
Also I think Orion need new name because i found several projects with this name :)
Some ideas about the GRU name:
GRU rocks (or rocking) UNIX
GloRious UNIX
GloRious Union
If you can help me or have some ideas (name/names or anything else) contact me via email or any other type of contact (irc: g1n on tilde.chat, xmpp: g1n@hmm.st)
GRU DevLog 2 - Orion
This week I was developing new OS - Orion.
I don’t understand very basic osdev thing so I decided to make OS on C and Asm. Currently that can just output text (with printf arguments) on screen and serial. Now gros is much cooler than Orion - it has input, interupts and a lot of else. But maybe I’ll understand OSdev better. Currently working on GDT (global descriptor table) and than will work on interrupts and exceptions.
Of course if you can help me contact me throught email or in other ways!
GRU DevLog 1 - gros sources published and add wc to grutils
I didn’t make a lot work this week, so i think this devlogs should be renamed from “week number” to just “number” Ok, so what i did this week: - Add wc to grutils - Published gros - Add basic shell and some commands for gros
I know that is not a lot, but i was reading some osdev articles and books. Currently I would like to implement basic filesystem but i don’t know what to do.
Some goals for gros (I will add that to gros readme): - Filesystem (FAT or Ext2) - ELF or other executable formats - LibC (for compiling C programs) - Maybe basic networking but after all of that
All code in osdev wiki is for C so I need to implement it myself (or port existing rust code)
If you can help me somehow please contact me via email (g1n@ttm.sh) or in other ways (~chat irc, xmpp)
GRU DevLog Week 0 - grsh, grutils and start of gros
So I have started new project this week - grsh! It is shell written on Rust. Also, for now, other rewrites of coreutils are there.
What grsh can do for this moment: echo some variables (pwd, user, home, status of previous command using $?) and text; true, false, : - set status; pwd shows current dir, also comments and cd working, basic piping (thanks to that article and of course executing not builtin command also working.
Some grutils that I made: ls, touch, mkdir/rmdir, rm, grep, head/tail, yes, cat.
TODOs exist in grsh repo - so you can read there some of my plans.
Yesterday i have started GROS - OS on Rust! But I haven’t published code yet because it not have that minimum of funcionality that i want. Thanks for that site for teaching how to make basics - https://os.phil-opp.com
So it was first of GRU Devlog! Thanks for reading! If you want to contribute to some of that project write me an email - g1n@ttm.sh , or contact me in other ways