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Run-Time Behaviour of a System Call
#19
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iainworkman
opened
8 years ago
iainworkman
commented
8 years ago
Describe the general method for executing a system call.
iainworkman
commented
8 years ago
Running process makes a system call
Function places the arguments passed to the call and an id specific to the system call in the relevant CPU registers.
Generates an system call interrupt
The kernel then receives the interrupt and looks up the required routine in a system call table.
The kernel runs the routine, returning to the point in user code where the system call was made when complete.
Describe the general method for executing a system call.