Book Image

Embedded Linux Development Using Yocto Project Cookbook - Second Edition

By : Alex Gonzalez
Book Image

Embedded Linux Development Using Yocto Project Cookbook - Second Edition

By: Alex Gonzalez

Overview of this book

The Yocto Project has become the de facto distribution build framework for reliable and robust embedded systems with a reduced time to market.You'll get started by working on a build system where you set up Yocto, create a build directory, and learn how to debug it. Then, you'll explore everything about the BSP layer, from creating a custom layer to debugging device tree issues. In addition to this, you’ll learn how to add a new software layer, packages, data, scripts, and configuration files to your system. You will then cover topics based on application development, such as using the Software Development Kit and how to use the Yocto project in various development environments. Toward the end, you will learn how to debug, trace, and profile a running system. This second edition has been updated to include new content based on the latest Yocto release.
Table of Contents (13 chapters)
Title Page
Packt Upsell


With hardware-specific changes on their way, the next step is customizing the target root filesystem, the software that runs under the Linux kernel, also called the Linux user space.

The usual approach to this is to start with one of the available core images and both optimize and customize it as per the needs of your embedded project. Usually, the images chosen as a starting point are either core-image-base for a headless system, or core-image-sato for a graphical system, but any of them will do.

This chapter will show you how to add a software layer to contain those changes, and will explain some of the common customizations made, such as size optimization. It will also show you how to add new packages to your root filesystem, including licensing considerations.