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There are already innumerable courses/tutorials on the internet/Udemy which teach almost every aspect of C programming language. All those courses sound the same, talk the same and deliver more or less the same knowledge. How is this course different from others? The intention of this course is to make you ready for System programming Technical interviews, interview level - from Beginner to Intermediate. This course is for (future) Developers, not for testers or System Administrators.I choose to create this course to fill the gap between novice/beginner and intermediate/Advanced Programmers. This course assumes that you are at least above average in programming (in any programming language, but preferable in C/C++) - know memory allocations, all kinds of loops, function calls, pointers etc. In this course, I won't teach C/C++ (there are already many courses on it online) but would teach programming techniques and low-level details regarding how C program works behind the scenes - All topics are very important from an interview point of view. My Target is to grow this course into Linux/C Bible.Yet, I always feel, you need to outsmart your fellow colleagues in this era of stiff competition, and therefore, I tried this attempt to present you the wisdom and knowledge which is of utmost importance for a programmer. I have seen though students could write good C/C++ programs, yet they lack the clarity on how one should write better organized, Manageable, extensible, and programmable codes in the form of libraries. For example, Students are too good at competitive programming, yet do not know how to write a simple Makefile, the reason being, Academics do not teach and students do not care to learn. In this course, I will cover the topics related to creating Linux System Libraries (release 1) with Advanced language-agnostic Programming Concepts (release 2) which can be well applied if you happen to become a programmer in other languages tomorrow. The Concepts like MultiThreading, Thread-Synchronization, Socket Programming, IPCs, etc demand a separate course on each topic altogether. Currently, I have a course on IPC, pls check it out. These topics are out of scope for this course. The Course shall be delivered into two Releases: Release 1 Building and Managing a Library: This covers the basics regarding how one should create and organize his code as a Library. Release 2 Memory Management Concepts: This covers Advance concepts on Linux Memory Management specifically. Please check the Table of Contents for more info.Why you should *NOT* do this course?1. Please Excuse this course if you are the ultimate beginner in C programming!!2. There is no point of doing this course if you don't like hitting the keyboard, and are lazy enough to watch lecture VDOs only3. If you want everything cooked and served on your plate. Course Pre-requisite:Above Beginners Level in C/C++ programmingGood to have basic OS knowledgeZeal to excel and CodeNo Third-Party librariesWhatever logic you implement, you need to implement it from scratch. Like all my other courses, this course does not suggest taking the help of any third-party library to get the jobs done. The use of external libraries completely defeats the purpose of the course. Warning: This course has auto system-generated subtitles which may not be perfect. Please disable subtitles at your convenience.Curriculum:**********************************************Release 1 Building and Managing a Library**********************************************Section 1: Introduction to Libraries What is LibraryRelationship between Library and ApplicationEx: Doubly linked list as a LibraryQuick Compilation StepsSummarySection 2: Header FilesRelationship between Source and header filesText Substitution MethodText Substitution Method - Example and DemoSection 3: Preprocessing DirectivesProblem of Duplicate inclusion of Hdr filesPre-processing DirectivesSolution to Duplicate inclusion of Hdr filesSection 4: Correct way of Using Structures and FunctionsStructures - Define and Use thumb RuleFunctions - Declare and Use thumb ruleThe problem of Recursive DependencyA solution to Recursive DependencySection 5: Creation of Static and Dynamic LibrariesResuming with Doubly Linked List LibraryQuick Creation of Static and Dynamic LibrariesLinking with Static LibraryLinking with Dynamic LibrarySection 7: Understanding four stages of Compilation Four stages of C/C++ CompilationHow Dynamic Library works ?Dynamic Linking: Linking with Dynamic LibraryComparison - Static Vs Dynamic LinkingSection 8: Building using a Makefile What are Makefiles and why do we need itFunctions of MakefileMakefile Dependency treeSteps of Writing a MakefileAssignment on MakefileSection 9: Run-time Programmable libraries What are Programmable Libraries?Steps to Program the librariesRegistering of the callbacks with Librarieskey_match callbackcomparison_fn callbackDelegation of Application-specific operations to LibrariesSection 10: Writing Iterators using MacrosWhat are Iterative Macros ?Why we need Iterative Macros ?How to Write Iterative Macros - For Trees and Linked ListsExercisesSection 11: Glue Based Libraries and Data structuresWhat are the Glue Based Libraries?Introducing Glthreads - A Glued LinkedListGlthreads Vs Traditional Linked ListStructure field offsetGLThread Operations Code WalkGLThread Benefits Section 12: Bit Level ProgrammingLogical OperatorsImplementing BIT manipulating C macrosUsing Enums as BitsBit Pattern MatchingBitMaps************************************************Release 2 Memory Management Concepts************************************************Section 13: Memory Layout of Linux ProcessVirtual Memory Basics Memory Layout of Linux Process Example: Memory Layout of Linux Process Exercise on size command Section 14: Stack Memory ManagementStack Memory Basics and Contents Stack-Overflow and Prevention Stack Memory Corruption Common Cpu RegistersProcedure Call Mechanism - Step by StepPurpose of Base Pointer register (ebp) Procedure Return Mechanism - Step by StepLab session Section 15: Heap Memory ManagementIntroduction and GoalsHow Malloc Works Top of Heap Memory region - break pointerHeap Memory Mgmt Sys Calls - brk and sbrkMeta and Data BlocksHow free() worksBlock SplittingBlock MergingMemory Illness - Problem of FragmentationSection 16: Concept of PagingIntroduction to PagingByte Addressable Memory32 bit and 64 bit Machine ArchitectureAddress Bus and Data bus Physical Vs Virtual AddressPhysical Memory Frames Virtual Address CompositionPage TablePaging In ActionShared Physical MemorySection 17: Multilevel PagingSection 18: Demand PagingSection 19: Memory Management for Multi-threaded ProcessThe intention of this course is to make you ready for System programming Technical interviews from beginners to upto 8-9 yrs of experience.Q. What are the frequently asked questions by interviewers in a technical round when someone writes C/C++/System Programming language on their resume?Answer: If i am interviewer, what questions i would ask depends on his no of years of experience in C.1-3 yrs of experience - I would have asked:Double pointersdesign a Macro to return the size of the structureTwo Dimensional Arrays, passing and returning arrays from a fnDifferent stages of C program compilationhow fork() worksWhat are various ways to debug memory corruptions.various IPCsHeap and Stack memory-based Question4-6 yrs of experience - I would have asked:How memory is allocated by the OSInternal and external fragmentation, what can be done to avoid itSystem calls, strace()Trade-of of one IPC over othervarious ways to communicate with kernel and comparisonData (De)Serialization in CRPC in Ccallbacks advanced applicationtypedef Vs #defineGeneric programming in C using macrosThread SynchronizationHeap and Stack memory-based Question7+ yrs of experience - I would have askedHave you designed any system module to solve any problemDesign thread library 0 what functionalities would you incorporate in and how?What are Dos and Dont's for writing a robust and flexible libraryHow to write generic code in CVarious ways to implement timers in C, and comparison of approachesHow do Interrupts work ?IPCs and comparisonHow would you convert a C code to C++ and vice versaHow to write a tool to detect memory leaks Or garbage collectionDesign your own memory allocation tool. Why would you write your own memory allocation scheme?When to go for Multi-process design over Multi-threaded design and vice versaHow ValGrind tool worksIn production code, would you favor recursive but simple logic, Or Nonrecursive but complex logic, and why?If you analyze the pattern,Candidate with 1-3 yrs of experience, I would choose to ask more of a direct and straightforward Questions.Candidate with 4-6 yrs of experience, I would choose to ask more advanced technical C Question plus some comparison of approaches based QuestionsCandidate with 7+ yrs of experience, I would choose to ask more of a design and Analysis based Question.Note that, since the Question pertains to C and System Programming, so I have not mentioned Data structures and Algorithms.

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