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)

Generating a native SDK for on-device development

Some embedded devices are powerful enough to be used as a development environment. However, the resources needed for the build vary significantly from one library or application to another, so using the target as the building environment may not always be viable. The development image needs the following:

  • The header files and libraries
  • The toolchain

The following line adds these properties to an image:

Figure 9.1 – How to configure an image to include development artifacts

Figure 9.1 – How to configure an image to include development artifacts

IMAGE_FEATURES in the preceding example extends the image functionality as follows:

  • dev-pkgs: Installs development packages (headers and extra library links) for all packages installed in a given image
  • tools-sdk: Installs the toolchain that runs on the device

The IMAGE_FEATURES variable is described in more detail in Chapter 12, Creating Custom Layers.

Tip

If we want to modify only build...