torokernel / toroos

This repository contains the source code of the Toro Operating System.

Toro Operating System

Introduction

ToroOS is an operating system for educational purposes for x86 that supports one core.

Features

• Support for POSIX
• Support for grub as bootloader
• Support for multiboot
• Support multitasking
• Support preemption
• Support Virtual File System
• Support Realtime and RR scheduler
• Support fat12 for filesystem

Work in progress

• Support for Multicore
• Support for Networking
• Support for Ext2 filesystem
• Support for IDE disk

Try it in QEMU/KVM

ToroOS is built by using fpc-3.2.0 and the embedded-i386 rtl. Also, we are currently relying on a modified version of Qemu/KVM. This is a temporal solution until we get rid of the floppy driver. To build Toro from master, please follow the next instructions to build a Docker image to work with ToroOS:

apt install x11-xserver-utils
xhost +
git clone https://github.com/torokernel/ToroOS.git
cd ToroOS/ci
docker build --no-cache -t toroos-dev .
cd ..
./make_all.sh

This launches ToroOS by using QEMU like in the following picture:

Contributing

Contributions are very welcome! Do not hesitate to reach me at [email protected]. Also, you can simply create a new issue.

toroos's Issues

Port ls

Floppy driver does not work in QEMU

Syscalls in embedded shall follow convention

The current syscalls are not saving correctly the registers

Rewrite get_argc()

Add Toro's syscalls in embedded32

This issue aims at building a fpc rtl to generate binaries for toro. I have started from the embedded32 rtl.

Overflow when the keyb driver reads more than KEYBUFFLEN

This is a larger work since the current mechanism in the tty is completely broken. The current mechanism shares the buffer where the key is written with the reader. There are several issues in the current implementation, i.e., race conditions and deadlocks. We need to implement a ring buffer or a linked-list in which keys are added. Or maybe, a polling mechanism would be better.

Assembler statements do not save registers

The compiler is ignoring the registers that needs to be saved during assembler, we need to do it manually or simply remove the assembler

Use syscall 0x80 instead of 50 to enables using Linux apps

Document how to try it now

Port syscalls

This issue has to port syscall.pas

Rewrite the shell in a more modular way

Replace run with RUN

ToroOS/ci/Dockerfile

Line 19 in a8b25a0

run wget https://sourceforge.net/projects/toro/files/images/toro-1.1.3/toro-1.1.3.img/download && mv download /root/ToroOS/src/floppy-disk.img

Create docker to ease ToroOS compilation

Add ioresult and errno

Add paramstr and paramcount

Remove words in spanish

There are plenty of words in spanish that must be removed.

Port sh

The shell (sh) needs to be ported by using the new rtl.

Create new directory structure

Rewrite cat

Create crt unit to manipulate console

This unit shall allow to access to low level to the console

Enable compilation by using FPC 3.2.0 embedded-i386

This issue aims at compiling ToroOS 1.1.3 by using FPC-3.2.0 for embedded-i386.

TTY shall use only #10 for new line

Currently, the TTY is using #13#10, it shall be replaced by #10 only

Rewrite ls

This issues has to rewrite ls in a more clear way.

Add support for elf32 in exec()

Currently, exec() only supports coff32. The syscall shall support elf32 instead.

Fix backspace

The backspace is introducing bad chars also is allowed when it shouldn't.

Filedescriptors for stdio shall be a constant

Add support ide disks

To do this, I should base on the ide disk drivers for toro. This driver should replace floppy driver.