Question

which of the following uses a call back machaenism in the cernel module to redirect system call?​

Answer 1

Answer:

system call is implemented by a ``software interrupt'' that transfers control to kernel code; in Linux/i386 this is ``interrupt 0x80''. ... After the switch to kernel mode, the processor must save all of its registers and dispatch execution to the proper kernel function, after checking whether EAX is out of range.

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