Debugging Linux Kernel in Deep – Part 2



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Debugging Linux Kernel in Deep – Part 2   Free Tutorial Download

What you’ll learn

  • Debugging Linux Kernel Using KGDB
  • KGDB on Raspberry Pi3

Requirements

  • Should have basic knowledge of Linux Kernel

Description

User space processes can be debugged using gdb. With gdb you can

  • single-step,
  • stop,
  • resume,
  • put break-points,
  • inspect memory and variables,
  • look through call stack information

What if we can use gdb on running Linux Kernel.

Problem:

How can a gdb debug running kernel as it is just a user space process.

Solution:

Client/Server Architecture

User space programs can be debugged remotely using the combination of gdbserver on the target machine and gdb on the host machine/development machine.

The Linux kernel has a GDB Server implementation called KGDB. It communicates with a GDB client over network or serial port connection

In this course we will learn:

  • How to setup KGDB
  • Various ways of getting the target into development machine
  • Setting Breakpoints
  • Printing and Setting Variables
  • Using a single serial port for both kgdb and console messages
  • Getting the kernel messages in gdb window
  • Debugging Linux Kernel Modules (In-Tree, out of tree)
  • Use of GDB Scripts present in the Linux Kernel

Who this course is for:

  • Kernel developers interested to learn various debugging techniques

Debugging Linux Kernel in Deep – Part 2, Free Tutorials Download

Download Debugging Linux Kernel in Deep – Part 2   Free

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