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Embedded Linux Development Using Yocto Project

Embedded Linux Development Using Yocto Project

By : Otavio Salvador, Angolini
5 (9)
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Embedded Linux Development Using Yocto Project

Embedded Linux Development Using Yocto Project

5 (9)
By: Otavio Salvador, 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)
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Adding metadata to the layer

Layer metadata can serve two goals – add new software, or feature and modify existing metadata.

We can include several metadata files on a new layer, such as recipes, images, and bbappend files. There are several examples of bbappend files on meta-yocto-bsp and meta-yocto. We will explore some of their common uses in Chapter 13, Customizing Existing Recipes.

In the next sections, we will go through some common modifications to layer metadata.

Creating an image

Image files are, in essence, a set of packages grouped for a purpose and configured in a controlled way. We can create an image from scratch or create one by reusing an existing one and adding the extra necessary packages.

We should reuse an existing image when possible, making code maintenance more manageable and highlighting the functional differences. For example, we may want to include an application and remove an image feature from the core-image-full-cmdline image file...

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