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Title: shell and kernel
Description: My notes about how kernel and shell work. very easy to understand . easy to learn .
Description: My notes about how kernel and shell work. very easy to understand . easy to learn .
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– the thread context is changed so that:
∗ the program counter is set to a fixed (determined by the hardware)
memory address, which is within the kernel’s address space
∗ the stack pointer is pointed at a stack in the kernel’s address space
System Call Execution and Return
Once a system call occurs, the calling thread will be executing a system call handler,
which is part of the kernel, in system mode
...
When the kernel is finished, it returns from the system call
...
Title: shell and kernel
Description: My notes about how kernel and shell work. very easy to understand . easy to learn .
Description: My notes about how kernel and shell work. very easy to understand . easy to learn .