Book Image

Embedded Linux Development Using Yocto Project - Third Edition

By : Otavio Salvador, Daiane Angolini
Book Image

Embedded Linux Development Using Yocto Project - Third Edition

By: Otavio Salvador, Daiane Angolini

Overview of this book

The Yocto Project is the industry standard for developing dependable embedded Linux projects. It stands out from other frameworks by offering time-efficient development with enhanced reliability and robustness. With Embedded Linux Development Using Yocto Project, you’ll acquire an understanding of Yocto Project tools, helping you perform different Linux-based tasks. You’ll gain a deep understanding of Poky and BitBake, explore practical use cases for building a Linux subsystem project, employ Yocto Project tools available for embedded Linux, and uncover the secrets of SDK, recipe tool, and others. This new edition is aligned with the latest long-term support release of the aforementioned technologies and introduces two new chapters, covering optimal emulation in QEMU for faster product development and best practices. By the end of this book, you’ll be well-equipped to generate and run an image for real hardware boards. You’ll gain hands-on experience in building efficient Linux systems using the Yocto Project.
Table of Contents (20 chapters)

Guidelines to follow for Yocto Project

This section aims to gather some guidelines for aspects of the Yocto Project metadata and project organization tips that make our life easier in terms of short- and long-term maintenance.

Managing layers

As our journey in product development advances, we will naturally use multiple repositories to meet the needs we face. Keeping track of the repositories is a complex challenge as we need to do the following:

  • Make sure we can reproduce a previous build in the future
  • Allow multiple team members to work in the same code base
  • Validate the changes we make using Continuous Integration tools
  • Avoid subtle changes in the layers we use

Those goals are intimidating, but a few tools are in use, with different strategies to overcome those challenges.

The simplest solution uses the image-buildinfo class (, which writes a plain text file containing...