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Mastering Embedded Linux Development

Mastering Embedded Linux Development

By : Frank Vasquez, Mr. Chris Simmonds
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Mastering Embedded Linux Development

Mastering Embedded Linux Development

By: Frank Vasquez, Mr. Chris Simmonds

Overview of this book

Mastering Embedded Linux Development' is designed to be both a learning resource and a reference for your embedded Linux projects. The book starts by breaking down the fundamental elements that underpin all embedded Linux projects: the toolchain, the bootloader, the kernel, and the root filesystem. First, you will download and install a pre-built toolchain. After that, you will cross-compile each of the remaining three elements from scratch and learn to automate the process using Buildroot and the Yocto Project. The book progresses with coverage of over-the-air software updates and rapid prototyping with add-on boards. Two new chapters tackle modern development practices including Python packaging and deploying containerized applications. These are followed by a chapter on writing multithreaded code and another on techniques to manage memory in an efficient way. The final chapters demonstrate how to debug your code, whether it resides in user space or in the Linux kernel itself. In addition to GDB, the book also covers 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 book, you will be able to create efficient and secure embedded devices with Linux that will delight your users.
Table of Contents (28 chapters)
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1
Part 1: Elements of Embedded Linux
7
Part 2: Building Embedded Linux Images
11
Part 3: System Architecture and Design Decisions
18
Part 4: Developing Applications
23
Part 5: Debugging and Optimizing Performance

Summary

Embedded hardware continues to get more complex following the trajectory set by Moore’s law. Linux has the power and flexibility to make use of hardware in an efficient way. Together, we will learn how to harness that power so we can build robust products that delight our users. This book will take you through the five phases of an embedded project’s life cycle, beginning with the four elements of embedded Linux.

The sheer variety of embedded platforms and the fast pace of development lead to isolated pools of software. In many cases, you will become dependent on this software, especially the Linux kernel that is provided by your SoC or board vendor, and to a lesser extent, the toolchain.

Some SoC manufacturers are getting better at pushing their changes upstream and the maintenance of these changes is getting easier. Despite these improvements, selecting the right hardware for your embedded Linux project is still an exercise fraught with peril. Open source license compliance is another topic you need to be aware of when building products atop the embedded Linux ecosystem.

In this chapter, you were introduced to the hardware and some of the software you will use throughout this book (namely QEMU). Later on, we will examine some powerful tools that can help you create and maintain the software for your device. We cover Buildroot and dig deep into The Yocto Project. Before we tackle these build tools, we will deconstruct the four elements of embedded Linux, which you can apply to all embedded Linux projects regardless of how they are built.

Join our community on Discord

Join our community’s Discord space for discussions with the authors and other readers: https://packt.link/embeddedsystems

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