Mastering Embedded Linux Programming: Create fast and reliable embedded solutions with Linux 5.4 and the Yocto Project 3.1 (Dunfell), 3rd Edition 153619

  Embedded Linux runs many of the devices we use every day. From smart TVs and Wi-Fi routers to test equipment and industrial controllers, all of them have Linux at their heart. The Linux OS is one of the foundational technologies comprising the core of the Internet of Things (IoT).

 This book starts by breaking down the fundamental elements that underpin all embedded Linux projects: the toolchain, the bootloader, the kernel, and the root filesystem. After that, you will learn how to create each of these elements from scratch and automate the process using Buildroot and the Yocto Project. As you progress, the book explains how to implement an effective storage strategy for flash memory chips and install updates to a device remotely once it’s deployed. You’ll also learn about the key aspects of writing code for embedded Linux, such as how to access hardware from apps, the implications of writing multi-threaded code, and techniques to manage memory in an efficient way. The final chapters demonstrate how to debug your code, whether it resides in apps or in the Linux kernel itself. You’ll also cover the different tracers and profilers that are available for Linux so that you can quickly pinpoint any performance bottlenecks in your system.

 By the end of this Linux book, you’ll be able to create efficient and secure embedded devices using Linux.

 Table of Contents

1 Starting Out

2 Learning about Toolchains

3 All about Bootloaders

4 Configuring and Building the Kernel

5 Building a Root Filesystem

6 Selecting a Build System

7 Developing with Yocto

8 Yocto Under the Hood

9 Creating a Storage Strategy

10 Updating Software in the Field

11 Interfacing with Device Drivers

12 Prototyping with Breakout Boards

13 Starting Up – The init Program

14 Starting with BusyBox runit

15 Managing Power

16 Packaging Python

17 Learning about Processes and Threads

18 Managing Memory

19 Debugging with GDB

20 Profiling and Tracing

21 Real-Time Programming