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コース概要
Course Outline
Introduction
- history of Unix/Linux, licenses, standards, work with free software, finding help, spelunking, the Unix philosophy
Embedded Specifics
- Linux on the desktop compared to Linux in an embedded system, cross-/native toolchains, pre-built toolchains, build systems, C libraries,...
Eval Board
- How does it boot?, See it booting
Yocto Introduction
- What is Yocto? Why use the YP? What is the YP?, Poky, BitBake, OE-Core, Metadata
The YP Autobuilder
- What is the YP Autobuilder?, Docker container (pull, launch container)
The YP Workflow
- Intro
- Workflow, OE architecture
- Configuration (User, Metadata, Machine, Distribution Policy)
- Sources
- Build (Source fetching, Patching, Configure/Compile/Install, Pseudo, Examples of recipes, Output analysis/Packaging, Image Generation, SDK Generation)
- Customizing Images (Intro, local.conf, IMAGE_FEATURES, custom .bb files, custom packagegroups)
BitBake
- History
- Syntax
- Debugging (debug level, find recipes/images/packagegroups, BitBake environment/tasks/logging, force build/specific task, cleansstate, invalidate stamp, devshell, dependency explorer, kill all BitBake instances, BitBake graphical wrapper)
Layers
- Intro, bitbake-layers tool, yocto-layer tool
BSP
- Intro, System Development Workflow, BSP Developer’s Guide (bsp-tool)
Kernel
- Intro, System Development Workflow, Kernel Development Manual (defconfig, defconfig + configuration fragment, in tree kmod, out of tree kmod, fdt,…)
Application Development Toolkit
- Intro, Cross-Development Toolchain, Sysroot, ADT- Eclipse Yocto Plug-in, The QEMU Emulator, User Space Tools
- Installing ADT & Toolchains
- Using a Cross-Toolchain tarball (Intro, Building/Installing the Cross-Toolchain tarball, Cross-Toolchain + Makefile/Autotools/Autotools lib + App, recipes)
- Using the ADT Installer (Intro, Web Server, Build image + ADT installer, Configure + run ADT installer, add ADT installer to webserver, ADT installer on host)
Eclipse
- Intro, Application Development Workflow
- Working with Eclipse (rootfs features, kernel + fdt, rootfs, install JDK, install Eclipse, configure Eclipse, install Yocto Plugin, Configure the Yocto Plugin, Create Autotooled Project, Configuring the Cross-Toolchains, Build the Project)
Debugging
- Intro, gdb, gdb remote debugging, (gdb remote) Debugging with Eclipse, (remote) Run from Eclipse
Profiling/Tracing
- Intro, 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
- Intro, Add custom license, Open Source License Compliance
Devtool
- Intro, 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).
要求
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/kernel space programming with GNU/Linux
- Intermediate C programming knowledge
- You should have attended Embedded GNU/Linux Systems Architecture (5 days) (strongly recommended!) unless you are already familiar with the material presented in those trainings.
- You actually need to have experience with Embedded GNU/Linux (kernel, userspace, root file system, tools) to follow the Yocto training.
- It might be helpful if you attended Embedded GNU/Linux Device Drivers and Kernel Internals (5 days), but that’s not really a prerequisite. It’s sufficient to know how to build the GNU/Linux kernel, kernel drivers in/out of tree and the fdt from the kernel side of things to follow the Yocto training.
28 時間
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