Linux Guru

Linux Internals (Module 1) :

Introduction to Linux:
• GNU Project/GPL Licensing
• Evolution of Linux and Development Model
• Device Identities in Linux-Partitioning Scheme

Introduction to Kernel:
• History of Linux
• Types of Kernel
• Linux Kernel
• Kernel Architecture

Shell Commands and Shell Scripting:
• Basic Shell Commands
• Bash Shell Essentials
• Creating Makefiles

Creating Libraries:
• Creating Static Libraries
• Creating Shared Libraries

The Boot Process:
• BIOS Level
• Boot Loader
• Setup
• Startup_32 functions
• The start_kernel() functions

The File System:
• Virtual File System & its role
• Files associated with a process – System Calls

Process Management:
• Process Defined
• Process Descriptor Structures in the Kernel
• Process States – Process Scheduling
• Process Creation – System Calls related to Process Management

Memory Management:
• Defining and Creating secondary memory areas
• Memory allocation & deallocation System Calls malloc, calloc, alloca, free
• Demand Paging defined
• Process Organization in memory
• Address Translation and page fault handling
• Virtual Memory Management

Multi Thread Programming:
• Creating multiple threads
• Parent synchronization with other Threads
• Inter Process Communication
• Pipes, FIFO, signals – System-V IPC’s
• Message queues – Shared memory – Semaphores

Sockets:
• An Overview
• System Calls related to TCP and UDP sockets

Network Programming:
• TCP Server Client Programming
• UDP Server Client Programming
• Net link socket interface

Programming & Debugging Tools:
• Strace : Tracing System call
• ltrace : Tracing Library call
• Tools used to detect memory access error and Memory leakage in Linux : mtrace
• Using gdb and ddd utilities
• Core Dump Analysis etc

Building Embedded Linux System (Module 2) :

Lecture:
• Introduction to Embedded Linux and Blueboard-AT91RM9200

Lecture:
• Toolchain Components
• Building Toolchain
• Build Systems for compiling Toolchain

Lab:
• Toolchain compilation and usage

Lecture:
• Bootloader Architecture
• U-Boot Bootloader Porting on New Hardware
• U-Boot Commands

Lab:
• Bootloader compilation and downloading on Target board

Lab:
• Bootloader commands and usage
• Bootloader code customization, adding new Ethernet drivers to U-Boot

Lab:
• Downloading pre-compiled Linux kernel images on Target board
• Using SD-Card for RootFS
• Configuring NFS and using RootFS over NFS
• Configuring TFTP and downloading kernel image over TFTP

Lecture:
• Linux Kernel Architecture

Lecture:
• Linux Source code browsing & code changes for a new Target [ Porting ]

Lab:
• Configuring and compiling Linux Kernel

Lecture:
• Root file system

Lab:
• Building Root file system with Busy box and booting the Linux Kernel

Lab:
• Cross compilation of libraries for target

Lab:
• Application development and Cross compilation.

Linux Device Drivers (Module 3) :

An introduction to device drivers:
• Role of the Device Drivers
• Splitting the Kernel
• Classes of devices and modules
• Kernel Architecture or Model
• Kernel modules

Module Basics:
• Introduction to Modules & Device Drivers
• Modules Defined
• Types of Modules in the Kernel
• Writing Your first Kernel module
• Module Related Commands
• Kernel Module vs Applications
• User space vs Kernel space
• Statically linked vs Dynamically linked drivers/modules
• Exporting symbols from modules
• Concurrency in the Kernel
• Module Parameters
• Version dependency
• Kernel Module Programming
• Lab exercises

The proc file system:
• Creating proc file system entries
• Making read & write operations on proc entries
• Lab exercises

Character Device Drivers:
• Registering a character device driver
• File operations
• The file structure
• devfs / lseek / ioctl
• Blocking, non blocking and asynchronous operations
• Programming with ioctl( ), mmap()
• Lab exercises

Hardware and Interrupt Handling:
• Using IO Ports
• Installing and implementing an interrupt handler
• asklets and Bottom halves
• Task queues, Work queues – Lab exercises

Block Device Drivers:
• Block drivers structures – Flash memory Drivers
• Lab exercises

Network Drivers:
• The net_device structure in detail
• Making changes in Ethernet drivers in Kernel Source
• Lab exercises