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)

What are the benefits of using QEMU over hardware?

There are several situations where it may be more practical to use QEMU instead of real hardware for testing and debugging:

  • It allows you to quickly and easily test your code in various simulated environments without constantly deploying it to the target device
  • If you don’t have the hardware that the software will be running on or if its availability is limited
  • When you need to test software on multiple hardware platforms without having to set up multiple physical machines
  • When you want to debug software in a controlled environment, such as reduced memory availability, to observe its behavior
  • When you want to validate software that isn’t hardware specific and wish to reduce the time needed for testing, such as flashing, board wiring, and so on

However, it is essential to note that QEMU is a software emulator, which may not be a perfect substitute for real hardware at all times. Therefore...