1. Introduction to System Programming

2. Introduction Types of software System software: Application software
e.g. Scientific calculations, database applications, etc.
Application software
e.g.
operating system
compiler
assembler
Linker
Loader
Debugger etc.
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3. Overview of System software
What is Operating System?
Modules of Operating System
Process Management
Resource Management
Memory Management
Secondary storage Management
User Management
Security Management
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4. Compiler Lexical Analysis Syntax Analysis Semantic Analysis
Intermediate Code Generation(three add. code)
Code Optimization
Common sub expression elimination
Dead code elimination
Loop optimization
Target Code Generation(m/c lang.)
Error Handling and Recovery
Symbol table Management
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5. Assembler Covert assembly language program to machine code
Cross Assembler
Error messages
Assembly
language
Program
Assembler
Object Module
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6. Linker Libraries Error messages Object module #1 Linker
Object module #n
Executable module
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7. Binary Image at an absolute address
Loader
Process of bringing an executable file produced by the linker from secondary storage in to primary storage.
Shared Libraries
One
executable file
Binary Image at an absolute address
Loader
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8. Debugger Grammatically correct programs.
Satisfy syntactic and semantic requirement.
Sets breakpoint
Can check the values of variables at certain points.
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9. Program development flow
Start
Distribute in to module
Module1
Module2
Module3
Module n
Compiler/
Assembler
Object1
Object 2
Object3 n
Linker
Executable Modules
Loader
Process in memory
Error
Debugger
Stop
Lib. Module
Shared Lib.
yes No
Program development flow
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10. END
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