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Bananymous 7c25e4ce5a Kernel: Implement RecursivePrioritySpinLock
This locks won't allow locking from userspace thread if there is
kernel thread waiting to lock this.
2023-12-07 13:18:21 +02:00
BAN BAN: implement quick sort and test for it 2023-12-07 11:55:28 +02:00
LibELF Kernel: Appreciate setuid and setgid bits executables 2023-12-06 18:14:27 +02:00
assets Update README.md 2023-08-31 17:54:12 +03:00
bootloader Bootloader: Add cache to ext2 inode data block indices 2023-11-22 13:54:53 +02:00
kernel Kernel: Implement RecursivePrioritySpinLock 2023-12-07 13:18:21 +02:00
libc LibC: Implement basic execvp 2023-12-06 18:14:00 +02:00
script BuildSystem: Check value of BANAN_UEFI_BOOT with `if ((...)); then` 2023-11-21 11:53:50 +02:00
toolchain Toolchain: Build full toolchain with one call to toolchain/build.sh 2023-11-20 00:56:06 +02:00
userspace AOC2023: Use quick sort in solution 2023-12-07 11:55:28 +02:00
.gitignore BuildSystem: using sysroot doesn't need root privileges anymore! 2023-11-04 17:50:43 +02:00
.gitmodules Kernel: Add LAI as a dependency 2023-09-22 17:20:35 +03:00
CMakeLists.txt AOC2023: update buildsystem 2023-12-01 12:38:01 +02:00
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README.md BuildSystem: using sysroot doesn't need root privileges anymore! 2023-11-04 17:50:43 +02:00
base-sysroot.tar.gz Userspace: Implement basic image rendering for Netbpm 2023-11-29 16:11:35 +02:00
bos BuildSystem: Add bos short hand for building with zsh completions :) 2023-10-28 22:23:29 +03:00

README.md

license

banan-os

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.

screenshot from qemu running banan-os

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.

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.

./script/build.sh toolchain

To build the os itself you can run one of the following commands. You will need root access for disk image creation/modification.

./script/build.sh qemu
./script/build.sh qemu-nographic
./script/build.sh qemu-debug
./script/build.sh bochs

You can also build the kernel or disk image without running it:

./script/build.sh kernel
./script/build.sh image

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.

./script/build.sh image-full

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.

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.

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.