Linux Kernel Programming is a comprehensive introduction for those new to Linux kernel and module development. This easy-to-follow guide will have you up and running with writing kernel code in next-to-no time. This book uses the latest 5.4 Long-Term Support (LTS) Linux kernel, which will be maintained from November 2019 through to December 2025. By working with the 5.4 LTS kernel throughout the book, you can be confident that your knowledge will continue to be valid for years to come.

You'll start the journey by learning how to build the kernel from the source. Next, you'll write your first kernel module using the powerful Loadable Kernel Module (LKM) framework. The following chapters will cover key kernel internals topics including Linux kernel architecture, memory management, and CPU scheduling.

During the course of this book, you'll delve into the fairly complex topic of concurrency within the kernel, understand the issues it can cause, and learn how they can be addressed with various locking technologies (mutexes, spinlocks, atomic, and refcount operators). You'll also benefit from more advanced material on cache effects, a primer on lock-free techniques within the kernel, deadlock avoidance (with lockdep), and kernel lock debugging techniques.

By the end of this kernel book, you'll have a detailed understanding of the fundamentals of writing Linux kernel module code for real-world projects and products.

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Spis treści

Linux Kernel Programming. A comprehensive guide to kernel internals, writing kernel modules, and kernel synchronization eBook -- spis treści

• 1. Kernel Workspace Setup
• 2. Building the 5.0 Linux kernel from Source, Part 1
• 3. Building the 5.0 Linux kernel from Source, Part 2
• 4. Writing your First Kernel Module, Part 1
• 5. Writing your First Kernel Module - Part 2
• 6. Kernel Internals Essentials - Processes and Threads
• 7. Memory Management Internals - Essentials
• 8. Kernel Memory Allocation for Module Authors, Part 1
• 9. Kernel Memory Allocation for Module Authors - Part 2
• 10. The CPU Scheduler - Part 1
• 11. The CPU Scheduler - Part 2
• 12. Kernel Synchronization - Part 1
• 13. Kernel Synchronization - Part 2