This repository contains lab assignments for the Operating System course at National Cheng Kung University (NCKU), focusing on Linux system programming, kernel modules, and file system development.
The course explores essential concepts in operating system design and implementation, including:
- Process creation and shell interaction
- Inter-process communication (IPC)
- Multithreading and race condition handling
- Linux kernel module development
- Virtual File System (VFS) design and extension
| Lab | Focus Area | Description |
|---|---|---|
| Lab 1 | Shared Memory & Message Passing | Implement send()/receive() using shared memory and message queues; compare communication performance |
| Lab 2 | Unix Shell | Build a custom shell supporting built-in commands (cd, exit), I/O redirection, and pipelines |
| Lab 3 | Multithreading & Kernel Module | Create matrix multiplication with threads, and implement a /proc interface kernel module |
| Lab 4 | Virtual File System | Develop osfs_create() and osfs_write() functions and test with a custom mounted file system |
NCKU-Operating_System/
│
├── os_lab1/ # Lab 1 – IPC: Shared memory and message passing
├── os_lab2/ # Lab 2 – Custom shell with redirection and piping
├── os_lab3/ # Lab 3 – pthreads and kernel module with /proc
├── os_lab4/ # Lab 4 – Simple virtual file system implementation
└── README.md # Course overview
Each lab folder includes source code (.c), Makefiles, and scripts for testing on a Linux environment.