rdmsr/emerald

An operating system written in C

An operating system kernel written for fun in ANSI C (we make use of gnu extensions though)

Note

This project is being rewritten. Please take a look at the rewrite branch The rewrite branch will be merged with the master branch when it is ready so all the previous commits will be removed.

⚙️ How to build

Please look at the Build guide

Prebuilt images

You can use prebuilt .hdd images in the releases tab.

Documentation

Full documentation is available here

🤝 Contributing

Contributions, issues and feature requests are welcome!
Only the following types of contributions will be accepted:

• Bug fixes
• Small features (please do not implement whole drivers)
• Issue (in the github "issues" tab) fixing

✔️ TODO

• Remove useless stuff
• Refactor progressively
• Change to a proper build system (remove meson)
• Fix VMM
• Multitasking
• EXT2 filesystem
• Userspace
• Port libc
• AHCI/Sata (would be nice)
• Reading from disk (goes with sata)
• Implement a font parser (PSF or TTF)
• Rewrite

❓ Questions?

Please join the discord server or contact me at [email protected]

Screenshots

emerald's Issues

Can't build (echfs-utils not found)

I'm trying to build this, following the build instructions exactly, but I get the following error when I type make run:

[ LIMINE ] build/kernel.elf
0+0 records in
0+0 records out
0 bytes copied, 3.405e-05 s, 0.0 kB/s
make: echfs-utils: No such file or directory
make: *** [Makefile:21: build/disk.hdd] Error 127

Make error

When running make or make run, I got this error.

/usr/local/bin/ld: warning: kernel/system/system.o: missing .note.GNU-stack section implies executable stack
/usr/local/bin/ld: NOTE: This behaviour is deprecated and will be removed in a future version of the linker
LIMINE build/disk.hdd
make: [Makefile:86: build/disk.hdd] Error 1 (ignored)
make: echfs-utils: No such file or directory
make: *** [Makefile:91: build/disk.hdd] Error 127

Pre build images

So where is pre build image

Too few arguments to function `self->set_used' in bitmap.c

While attempting to build emerald, I got this error:

../libraries/libk/bitmap.c:106:37: error: too few arguments to function call, expected 3, have 2
    if (self->set_used(block, length) == 0)
        ~~~~~~~~~~~~~~              ^
1 error generated.

I checked the usage of set_used in bitmap.h and is as follows:

size_t (*set_used)(size_t, size_t, struct bitmap_struct *);

Where is the third argument, or an alternate version of set_used?

In the meantime, I'll look for a non-permanent solution.

Requirements update

Hello! I don't know very well how to contribute correctly, sorry.
I have found that in some distributions the following required packages aren't installed by default:
-clang

May you can consider updating the build requirements :)
Nice job with your OS!!
Sorry for my English!

does not work on windows

Compile, Issue Here...

hello, when i compile, i get the folowing... i have 32bit machine runing debian, sorry the folowing text are in frensh so try use gooogle translate, thanks:
make[1]: *** Aucune règle pour fabriquer la cible « limine-install ». Arrêt.
make: *** [Makefile:82 : limine/limine-install] Erreur 2
make[1] : on entre dans le répertoire « /home/archuser555/Bureau/emerald-master/thirdparty/limine »
make[1]: *** Aucune règle pour fabriquer la cible « limine-install ». Arrêt.
make[1] : on quitte le répertoire « /home/archuser555/Bureau/emerald-master/thirdparty/limine »
make: *** [Makefile:82 : limine/limine-install] Erreur 2

i think the folowing issue because i dont have limine, but wait, limine is only a binary file... so just, i want to understand why this go with me

How to build rewrite branch?

Hello,

While trying to build the rewrite branch, I came across this error:

make: *** No rule to make target `$(ISO)'.   Stop.

What should I do? Is there a build script that I should run?
I already have cross-compiling utilities, as listed in the Makefile.

Error

Why i can not run this?

what is my wrong?