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OS_Assignment

Assignment 1

Folders

  • module: a simple kernel module.
  • syscall: hook sys_call_table, in order to append a new syscall without compiling kernel.

Note

  • kallsyms_lookup_name was no longer export after version 5.7. Therefore we cannot find any kernel function easily.
  • To tackle it, we can use kprobe, another exported method to find unexported kernel function.

Assignment 2

  • Implement thread based Fibonacci number calculation program, using Java and C.
  • Encapsulate <pthread.h> into thread.h. Available APIs:
    • int create(void *func);
    • void wait(int id);

Assignment 3

  • Implement dynamic extended thread pool.
  • Customize macro BLOCK_SIZE to fit your own needs. Default: 64.
  • Available APIs:
    • int create(void *func);
    • void wait(int id);
  • A possible solution to Dining Philosophers problem.

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