53 lines
2.1 KiB
Markdown
53 lines
2.1 KiB
Markdown
|
|
|
|
# banan-os
|
|
|
|
This is my hobby operating system written in C++. Currently supports only x86_64 architecture. We have a read-only ext2 filesystem, read-write ramfs, IDE disk drivers in ATA PIO mode, userspace processes, executable loading from ELF format, linear VBE graphics and multithreaded processing on single core.
|
|
|
|
|
|
|
|
## Code structure
|
|
|
|
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.
|
|
|
|
## Building
|
|
|
|
There does not exist a complete list of needed packages for building. From the top of my head I can say that *cmake*, *ninja*, *make*, *grub*, *rsync* and emulator (*qemu* or *bochs*) are needed.
|
|
|
|
Create the build directory and cofigure cmake
|
|
```sh
|
|
mkdir build
|
|
cd build
|
|
cmake -G Ninja ..
|
|
```
|
|
|
|
To build the toolchain for this os. You can run the following command.
|
|
> ***NOTE:*** The following step has to be done only once. This might take a long time since we are compiling binutils and gcc.
|
|
```sh
|
|
ninja toolchain
|
|
cmake -G Ninja --fresh .. # We need to reconfigure cmake to use the new compiler
|
|
ninja libstdc++
|
|
```
|
|
|
|
To build the os itself you can run either of the following commands. You will need root access since the sysroot has "proper" permissions.
|
|
```sh
|
|
ninja qemu
|
|
ninja bochs
|
|
```
|
|
|
|
You can also build the kernel or disk image without running it:
|
|
```sh
|
|
ninja kernel
|
|
ninja image
|
|
```
|
|
|
|
If you have corrupted your disk image or want to create new one, you can either manually delete *banan-os.img* and cmake will automatically create you a new one or you can run the following command.
|
|
```sh
|
|
ninja image-full
|
|
```
|
|
|
|
> ***NOTE*** ```ninja clean``` has to be ran with root permissions, since it deletes the root filesystem.
|
|
|
|
### Contributing
|
|
|
|
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. |