System calls

Code No
Skill Category No: 
2
Skill No: 
2
Topic No: 
5
Level: 
I
Objective: 

Understanding the system call function used to use OS functions in Objective ordinary applications. Understanding the position of the system call among other functions. Knowing the outline of the internal behavior of the OS when the system call function is activated.
 

  • Understanding concept of system call
  • Understanding the trap mechanism
  • Understanding switch of address space
    •  Kernel space
    •   User space
    •  Copying data from/to kernel and user space
  • Understanding the basic method for implementing features of system call
    •   Dispatch table