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Course Outline
Course Outline
Introduction
- History of Unix/Linux, licenses, standards, working with free software, finding assistance, spelunking, the Unix philosophy
Embedded Specifics
- Linux on the desktop versus Linux in embedded systems, cross/native toolchains, pre-built toolchains, build systems, C libraries, etc.
Evaluation Board
- How it boots, observing the boot process
Yocto Introduction
- What is Yocto? Why use the YP? What constitutes the YP?, Poky, BitBake, OE-Core, Metadata
The YP Autobuilder
- What is the YP Autobuilder?, Docker container (pulling, launching container)
The YP Workflow
- Introduction
- Workflow overview, 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 levels, finding recipes/images/packagegroups, BitBake environment/tasks/logging, forcing builds/specific tasks, cleansstate, invalidating stamps, devshell, dependency explorer, terminating 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 with configuration fragments, in-tree kernel modules, out-of-tree kernel modules, fdt, etc.)
Application Development Toolkit
- Introduction, Cross-Development Toolchain, Sysroot, ADT- Eclipse Yocto Plug-in, 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, Building image + ADT installer, Configuring + running ADT installer, adding 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 Autotooled Project, Configuring 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 licenses, 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).
Requirements
Prerequisites
- Basic familiarity with using a GNU/Linux system (e.g., Ubuntu) as an end user in user space
- Basic familiarity with a command-line shell
- Basic knowledge of user-space and kernel-space programming with GNU/Linux
- Intermediate knowledge of C programming
- Attendance at Embedded GNU/Linux Systems Architecture (5 days) is strongly recommended unless you are already familiar with the material covered in that training.
- You must have practical experience with Embedded GNU/Linux (kernel, userspace, root file system, tools) to follow the Yocto training.
- Attending Embedded GNU/Linux Device Drivers and Kernel Internals (5 days) may be helpful but is not a strict prerequisite. It is sufficient to know how to build the GNU/Linux kernel, kernel drivers (in-tree and out-of-tree), and the device tree blobs (fdt) from the kernel side to follow the Yocto training.
28 Hours
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