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Linux Kernel Programming

You're reading from   Linux Kernel Programming A comprehensive guide to kernel internals, writing kernel modules, and kernel synchronization

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Product type Paperback
Published in Mar 2021
Publisher Packt
ISBN-13 9781789953435
Length 754 pages
Edition 1st Edition
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Author (1):
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Kaiwan N. Billimoria Kaiwan N. Billimoria
Author Profile Icon Kaiwan N. Billimoria
Kaiwan N. Billimoria
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Table of Contents (19) Chapters Close

Preface 1. Section 1: The Basics
2. Kernel Workspace Setup FREE CHAPTER 3. Building the 5.x Linux Kernel from Source - Part 1 4. Building the 5.x Linux Kernel from Source - Part 2 5. Writing Your First Kernel Module - LKMs Part 1 6. Writing Your First Kernel Module - LKMs Part 2 7. Section 2: Understanding and Working with the Kernel
8. Kernel Internals Essentials - Processes and Threads 9. Memory Management Internals - Essentials 10. Kernel Memory Allocation for Module Authors - Part 1 11. Kernel Memory Allocation for Module Authors - Part 2 12. The CPU Scheduler - Part 1 13. The CPU Scheduler - Part 2 14. Section 3: Delving Deeper
15. Kernel Synchronization - Part 1 16. Kernel Synchronization - Part 2 17. About Packt 18. Other Books You May Enjoy

Summary

In this chapter, we covered the key aspects of kernel internals that will help you as a kernel module or device driver author to better and more deeply understand the internal workings of the OS. You examined in some detail the organization of and relationships between the process and its threads and stacks (in both user and kernel space). We examined the kernel task_struct data structure and learned how to iterate over the task list in different ways via kernel modules.

Though it may not be obvious, the fact is that understanding these kernel internal details is a necessary and required step in your journey to becoming a seasoned kernel (and/or device driver) developer. The content of this chapter will help you debug many system programming scenarios and lays the foundation for our deeper exploration into the Linux kernel, particularly that of memory management.

The next chapter and the couple that follow it are critical indeed: we'll cover what you need to understand regarding...

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