Linux kernel Analysis Experiment II: Mykernel Experimental Guidance (how the operating system works)

How does a computer work? (summary)--Three magic weapon

• Stored program computer working model, the most basic logical structure of computer system;

• The function call stack, the high-level language to run the foundation, only the machine language and the assembly language when the stack mechanism for the computer is not so important, but with the high-level language and functions, the stack becomes the basic function of the computer;

• Enter

• PUSHL%EBP

• MOVL%ESP,%EBP

• Leave

• MOVL%ebp,%esp

• POPL%EBP

• function parameter passing mechanism and local variable storage

• Interrupt, multi-channel program operating system base point, no interrupt mechanism program can only run from the beginning to the end of the possibility to start running other programs.

Anti-assembly

Gcc-g Generating an executable file

　　

Objdump-s Obtaining Disassembly files

C Language Embedded assembly language (template):

ASM volatile (

Output:

Input:

Destruction Description Section

）；

Experimental section ()

　　　　

Summary: The code of your own hand does not know where the error caused the rotation can not be reset. Also hope to understand

　　　　

Linux kernel Analysis Experiment II: Mykernel Experimental Guidance (how the operating system works)