The Monolithium Operating System (mirror)

coderain 738cdf14f4 Change the timer syscalls so that sysret_t can be 32-bit 5 лет назад
drivers 738cdf14f4 Change the timer syscalls so that sysret_t can be 32-bit 5 лет назад
kernel 738cdf14f4 Change the timer syscalls so that sysret_t can be 32-bit 5 лет назад
libraries 1d2617f421 Reorganize the files. 5 лет назад
programs 1d2617f421 Reorganize the files. 5 лет назад
sdk 738cdf14f4 Change the timer syscalls so that sysret_t can be 32-bit 5 лет назад
tests 126dd9162c Implement vectored I/O. 5 лет назад
tools e06a5d13a3 Add an automatic build environment setup script for POSIX-compliant systems. 6 лет назад
.gitignore 1d2617f421 Reorganize the files. 5 лет назад
COPYING 6556847b55 Initial commit. 7 лет назад
Makefile 1d2617f421 Reorganize the files. 5 лет назад
README.md e06a5d13a3 Add an automatic build environment setup script for POSIX-compliant systems. 6 лет назад
common.mk ae4db17b61 Fix a bug in common.mk. 5 лет назад
grub.cfg c1387c687c Reimplement basic locking. Fix bugs. 6 лет назад
setup c1387c687c Reimplement basic locking. Fix bugs. 6 лет назад
syscalls.awk c2c026e397 Automatically generate syscalls.h and syscalls.c as well 6 лет назад

README.md

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What is Monolithium?

Monolithium is a 32-bit operating system for x86 PCs. It is not a Unix-like system, and shares almost nothing with the Unix architecture. Written completely from scratch, it is completely incompatible with other operating systems. Currently, only the Monolithium kernel is implemented. The other major components, the "system library" and "system manager", are still missing.

Monolithium wasn't implemented according to any existing design, it was more or less designed as it was implemented, so the current interface may not be consistent. During this phase of its development, its kernel module interface and application programming interface are not stable and subject to major changes.

FREQUENTLY ASKED QUESTIONS

1) Why write another OS from scratch?

Most software development today is focused on assembling software from existing "building blocks", using libraries and high-level programming languages, which are designed to be complex and generic because they need to cover a lot of use cases. Simplicity is a very useful trait that is often overlooked. Monolithium is one of the few operating system projects with simplicity as its primary goal.

2) Why is there no development history?

I started this project in 2011, before I understood how VCS systems work and why they're important. I made backups at regular intervals, but since I didn't use git, there are no commits before the first release.

3) Will the interface ever become stable?

Having a stable interface, which will not change to the extent that later versions break software running in userspace, is one of the end goals of the project.

COMPILING

Run the "setup" script to download, configure, and locally install required packages, then run "make". To speed things up, use the -j flag to compile with more threads in parallel.

Prerequisites:

  • A POSIX-compatible environment.
  • An internet connection (to download required packages).