The Yocto Project - An Overview - hands-on Training Course

Course Outline

Introduction

• History of Unix/Linux, licenses, standards, working with free software, finding help, spelunking, the Unix philosophy

Embedded Specifics

• Comparison of Linux on the desktop versus Linux in an embedded system, cross/native toolchains, pre-built toolchains, build systems, C libraries, etc.

Evaluation Board

• Boot process overview, observing the boot sequence

Yocto Introduction

• What is Yocto? Why use the YP? What constitutes the YP? Poky, BitBake, OE-Core, Metadata

The YP Autobuilder

• Understanding the YP Autobuilder, Docker container (pull, launch container)

The YP Workflow

• Introduction
• Workflow and OE architecture
• Configuration (User, Metadata, Machine, Distribution Policy)
• Sources
• Build (Source fetching, Patching, Configure/Compile/Install, Pseudo, Recipe examples, Output analysis/Packaging, Image Generation, SDK Generation)
• Customizing Images (Introduction, local.conf, IMAGE_FEATURES, custom .bb files, custom packagegroups)

BitBake

• History
• Syntax
• Debugging (debug level, finding recipes/images/packagegroups, BitBake environment/tasks/logging, force build/specific task, cleansstate, invalidate stamp, devshell, dependency explorer, killing all BitBake instances, BitBake graphical wrapper)

Layers

• Introduction, bitbake-layers tool, yocto-layer tool

BSP

• Introduction, System Development Workflow, BSP Developer’s Guide (bsp-tool)

Kernel

• Introduction, System Development Workflow, Kernel Development Manual (defconfig, defconfig + configuration fragment, in-tree kmod, out-of-tree kmod, fdt, etc.)

Application Development Toolkit

• Introduction, Cross-Development Toolchain, Sysroot, ADT- Eclipse Yocto Plug-in, The QEMU Emulator, User Space Tools
• Installing ADT & Toolchains
  • Using a Cross-Toolchain tarball (Introduction, Building/Installing the Cross-Toolchain tarball, Cross-Toolchain + Makefile/Autotools/Autotools lib + App, recipes)
  • Using the ADT Installer (Introduction, Web Server, Build image + ADT installer, Configure + run ADT installer, add ADT installer to webserver, ADT installer on host)

Eclipse

• Introduction, Application Development Workflow
• Working with Eclipse (rootfs features, kernel + fdt, rootfs, installing JDK, installing Eclipse, configuring Eclipse, installing Yocto Plugin, Configuring the Yocto Plugin, Creating an Autotooled Project, Configuring the Cross-Toolchains, Building the Project)

Debugging

• Introduction, gdb, gdb remote debugging, (gdb remote) Debugging with Eclipse, (remote) Running from Eclipse

Profiling/Tracing

• Introduction, perf, gprof, gcov, strace, ftrace, systemtap, oprofile, LTTng + Eclipse (data visualization)

Package Management

• Working with Packages, IPK, creating a package feed, installing a package with opkg on the target

Licensing

• Introduction, Adding custom license, Open Source License Compliance

Devtool

• Introduction, devtool, real-world showcase meta-cfengine

Except where otherwise noted, content and this course outline are licensed under Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0).