NlightNFotis / Fotix
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fotix is a unix like clone.
Copyright (c) 2013 - 2016 Fotis Koutoulakis
Introduction
fotix is a unix like kernel that I made, mostly for self-education / self-amusement.
Features:
- Interrupt handling.
- Multitasking capable
- Some (primal) memory management
- A (primal) scheduler
Instructions
Prerequisites
To build fotix, you should have a cross-compiler. I personally used GCC-4.9 for
my development purposes, targeted at i586. It goes without saying that you
should also have binutils. You can get a basic toolchain installed by running
the script at utils/prepare_toolchain.sh. You should also have nasm.
To build the iso, you should also have installed grub-mkrescue and xorriso.
To run the iso, you can use any virtual machine hypervisor, although I personally
use QEMU, and the one-step-build script is automated to use QEMU.
Building instructions
If you do have all that, just run make at the top of the project's root directory
and then run the build.sh script (as root). This will create an ISO,
and run it with QEMU.
If you don't want to use QEMU, simply modify build.sh to not delete the
iso image, so that you can use it with another hypervisor, or just replace QEMU
with your favourite hypervisor.
I should have a cross compiler built (along with binutils)
- There is one at earth. It is under $HOME/bin/cross/
- To use it for the session I have to do
export PATH="$HOME/bin/cross/bin:$PATH"
Known bugs
- When a fork()-ed process attemtps to run, we get a page fault, which results on a kernel panic.
Notes
02:50:34 [email protected] ~/osdev/fotix $ cloc .
37 text files.
37 unique files.
353 files ignored.
http://cloc.sourceforge.net v 1.56 T=1.0 s (33.0 files/s, 3337.0 lines/s)
-------------------------------------------------------------------------------
Language files blank comment code
-------------------------------------------------------------------------------
C 14 325 428 1488
C/C++ Header 13 130 190 459
Assembly 4 39 48 190
make 1 6 2 14
Bourne Shell 1 3 4 11
-------------------------------------------------------------------------------
SUM: 33 503 672 2162
-------------------------------------------------------------------------------
TODO
- Implement IPC
- Implement threading
- Improve memory management
- Implement a shell
- Improve the scheduler
LICENSE
fotix is distributed under the BSD 3-Clause license. See file LICENSE for more info.