Some experiments of HDU's 2021 Operating Systems course
中文

Modify the kernel code then build it

• Show a message in the kernel ring buffer when booting up
• Add a system call to show the system information(from utsname)
• Add a system call to get/set the nice value of a process
• Add a system call to get/set the hostname

Make some kernel modules

• Show the process status
• Show the tree of a process

Test inter-process communication

• Make a shell which forks itself to execute the commands
• Test pipe with mutex/semaphore
• Test message queue with mutex/semaphore
• Test shared memory with mutex/semaphore

Write a filesystem