EIEIOTECHNOVATION
← Training programmes

EIEIO / OPERATING SYSTEMS

Embedded Linux Essentials

Course outline

4 days
Discuss this programme →

Duration

Embedded Linux Essentials

4 days

Objective

Be able to understand the role and principle of an embedded Linux build system, and compare Yocto Project/OpenEmbedded to other tools offering similar functionality.

  • Be able to configure and build basic embedded Linux system with Yocto, and install the result on an embedded platform.
  • Be able to write and extend recipes, for your own packages or customizations.
  • Be able to use existing layers of recipes, and create your own new layers.
  • Be able to integrate support for your own embedded board into a BSP layer.
  • Be able to create custom images.
  • Be able to use the tools and workflows suitable to develop applications with the Yocto Project SDK

Audience

Be able to understand the role and principle of an embedded Linux build system, and compare Yocto Project/Open Embedded to other tools offering similar functionality.

  • Be able to configure and build basic embedded Linux system with Yocto, and install the result on an embedded platform.
  • Be able to write and extend recipes, for your own packages or customizations.
  • Be able to use existing layers of recipes, and create your own new layers.
  • Be able to integrate support for your own embedded board into a BSP layer.
  • Be able to create custom images.
  • Be able to use the tools and workflows suitable to develop applications with the Yocto Project SDK

Prerequisite

Knowledge and practice of UNIX or GNU/Linux commands: participants must be familiar with the Linux command line. Participants lacking experience on this topic should get trained by themselves, for example with our freely available on-line slides at bootlin.com/blog/command-line/.

  • Minimal experience in embedded Linux development: participants should have a minimal understanding of the architecture of embedded Linux systems: role of the Linux kernel vs. user-space, development of Linux user space applications in C. Following Bootlin’s Embedded Linux course at bootlin.com/training/embedded-linux/ allows to fulfill this pre-requisite.

Outline

Writing recipes - basics

  • Writing a minimal recipe
  • Adding dependencies
  • Development workflow with bitbake
  • Writing a recipe for nInvaders

Writing recipes - advanced features

  • Extending and overriding recipes
  • Adding steps to the build process
  • Learn about classes
  • Analysis of examples
  • Logging
  • Debugging dependencies

Layers

  • What layers are
  • Where to find layers
  • Creating a layer
  • Learn how to write a layer
  • Add the layer to the build

Writing a BSP

  • Extending an existing BSP
  • Adding a new machine
  • Bootloaders
  • Linux and the linux-yocto recipe
  • Adding a custom image type

Creating a custom image

  • Writing an image recipe
  • Adding users/groups
  • Adding custom configura􀆟on
  • Writing and using package groups recipes

Creating and using an SDK

  • Understanding the purpose of an SDK for the application developer
  • Building an SDK for the custom image
  • Building an SDK

Programme scope, delivery arrangements and suitability are confirmed during enquiry.