59 lines
3.0 KiB
Markdown
59 lines
3.0 KiB
Markdown
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# banan-os
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This is my hobby operating system written in C++. Currently supports only x86\_64 architecture. We have a ext2 filesystem, basic ramfs, IDE disk drivers in ATA PIO mode, ATA AHCI drivers, userspace processes, executable loading from ELF format, linear VBE graphics and multithreaded processing on single core.
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## Code structure
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Each major component and library has its own subdirectory (kernel, userspace, libc, ...). Each directory contains directory *include*, which has **all** of the header files of the component. Every header is included by its absolute path.
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## Building
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### Needed packages
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#### apt (tested on ubuntu 22.04)
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```# apt install build-essential git ninja-build texinfo bison flex libgmp-dev libmpfr-dev libmpc-dev parted qemu-system-x86```
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#### pacman
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```# pacman -S --needed base-devel git wget cmake ninja parted qemu-system-x86```
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> ***NOTE:*** You need cmake version of atleast 2.26. If you are using cmake that is not found from PATH, you can set the CMAKE\_COMMAND environment variable to point to the correct cmake binary. Or you can let build script download correct version of cmake if you don't have one.
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When you clone this reposity, make sure to also clone submodules. This can be done by cloning with the command ```git clone --recurse-submodules https://git.bananymous.com/bananymous/banan-os.git``` or if you have already cloned this repo, run ```git submodule init && git submodule update```.
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To build the toolchain for this os. You can run the following command.
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> ***NOTE:*** The following step has to be done only once. This might take a long time since we are compiling binutils and gcc.
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```sh
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./script/build.sh toolchain
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```
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To build the os itself you can run one of the following commands. You will need root access for disk image creation/modification.
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```sh
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./script/build.sh qemu
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./script/build.sh qemu-nographic
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./script/build.sh qemu-debug
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./script/build.sh bochs
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```
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You can also build the kernel or disk image without running it:
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```sh
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./script/build.sh kernel
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./script/build.sh image
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```
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If you have corrupted your disk image or want to create new one, you can either manually delete *build/banan-os.img* and build system will automatically create you a new one or you can run the following command.
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```sh
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./script/build.sh image-full
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```
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If you feel like ```./script/build.sh``` is too verbose, there exists a symlink _bos_ in this projects root directory. All build commands can be used with ```./bos args...``` instead.
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I have also created shell completion script for zsh. You can either copy the file in _script/shell-completion/zsh/\_bos_ to _/usr/share/zsh/site-functions/_ or add the _script/shell-completion/zsh_ to your fpath in _.zshrc_.
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### Contributing
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Currently I don't accept contributions to this repository unless explicitly told otherwise. This is a learning project for me and I want to do everything myself. Feel free to fork/clone this repo and tinker with it yourself.
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