DOCSLIB.ORG

Fast and Small

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Fast and Small Fast and small System description Full build Uncompressed time target filesystem size Embedded Default configuration 12 minutes 1.5 MB Linux uClibc toolchain built from scratch, build system Busybox, tarball image. Default config with glibc external 32 seconds 3.1 MB toolchain Busybox-only system, with a Linaro Simple pre-built glibc toolchain. Fast Real system for a product 11 minutes 11 MB Efficient Linux kernel, glibc Sourcery toolchain, Busybox, Dropbear, Qt (no GUI), QextSerialPort, zlib, libxml2, logrotate, 1 / 14 pppd, strace, popt, Qt application, generated as a JFFS2 image. http://buildroot.net Build times from scratch (no cache), download time excluded. Simple to use Embedded Linux $ make menuconfig build system $ make $ ls output/images/ Simple rootfs.tar uImage u-boot.bin MLO Fast Efficient 2 / 14 http://buildroot.net Vendor neutral Embedded ● Not controlled by any company Linux ● build system Created by a pure open-source community ● Variety of actors – consulting company engineers Simple Fast – product manufacturers Efficient – hobbyists ● GPLv2 licensed 3 / 14 http://buildroot.net Easy to configure Embedded Linux build system Simple Fast Efficient 4 / 14 menuconfig / xconfig Identical to the Linux kernel configuration http://buildroot.net Wide architecture support ● ARM ● AVR32 Embedded Linux ● x86 / x86-64 ● MIPS build system ● PowerPC ● Sparc ● SuperH ● Xtensa ● Blackfin Simple Fast ● Microblaze Efficient ● AArch64 5 / 14 Both MMU-capable and MMU-less architectures are supported. http://buildroot.net Automated build testing Embedded Linux build system Simple Fast Efficient Build of random configurations for many architectures, running 24/7 since one year. About 150 configurations tested every day. 6 / 14 Allows significant improvement of Buildroot quality by detecting problematic configurations. http://autobuild.buildroot.net http://buildroot.net 900+ packages Embedded Linux uClibc/glibc/eglibc toolchain, build system Busybox, Linux, X.org, Qt, Gtk, EFL, Gstreamer, systemd, connman, Linux, Simple UBoot, Barebox, LTTng, Fast Python, Perl, PHP, Lua, Efficient Xenomai, and many, many more... 7 / 14 http://buildroot.net Easy to understand Embedded Linux Fully written in the well-known make build system language. The core infrastructure weighs in at Simple approximately 2000 lines of code, Fast comments included. Efficient 8 / 14 http://buildroot.net Active community Embedded Linux build system Simple Fast Efficient 9 / 14 http://buildroot.net Easy to add new packages package/libvorbis/Config.in config BR2_PACKAGE_LIBVORBIS Embedded bool "libvorbis" Linux select BR2_PACKAGE_LIBOGG help build system Library for the Vorbis open source audio decoder [...] package/libvorbis/libvorbis.mk LIBVORBIS_VERSION = 1.3.3 Simple LIBVORBIS_SOURCE = libvorbis-$(LIBVORBIS_VERSION).tar.gz LIBVORBIS_SITE = http://downloads.xiph.org/releases/vorbis/ Fast LIBVORBIS_INSTALL_STAGING = YES LIBVORBIS_CONF_OPT = --disable-oggtest Efficient LIBVORBIS_DEPENDENCIES = host-pkgconf libogg LIBVORBIS_LICENSE = BSD-3c LIBVORBIS_LICENSE_FILES = COPYING 10 / 14 $(eval $(autotools-package)) http://buildroot.net Well documented Embedded Linux build system A 80 page manual detailing how to use and extend Buildroot. Simple Fast Efficient 11 / 14 http://buildroot.net Eclipse integration Embedded Linux build system Simple Fast Efficient Eclipse plugin that integrates Buildroot toolchains into Eclipse build system, enables remote execution and remote 12 / 14 debugging. https://github.com/mbats/eclipse-buildroot-bundle/wiki http://buildroot.net Board support ● Pre-defined configurations for many popular Embedded boards Linux build system – BeagleBone – PandaBoard – Rasberry Pi (in progress) – SheevaPlug Simple – FriendlyARM Mini2440 Fast – QEMU emulated boards Efficient – AT91 evaluation kits – ARM Foundation v8 simulator 13 / 14 http://buildroot.net Licensing report Embedded ● make legal-info automatically generates Linux – a manifest.csv listing all components and their build system license – a licenses.txt with the license text of all components – a licenses/ directory with all the copyright files – a sources/ directory with all the sources Simple ● Great help for open-source license compliance! Fast Efficient "PACKAGE","VERSION","LICENSE","LICENSE FILES","SOURCE ARCHIVE" "busybox","1.21.0","GPLv2","LICENSE","busybox-1.21.0.tar.bz2" "strace","4.7","BSD-3c","COPYRIGHT","strace-4.7.tar.xz" "fakeroot","1.18.2","GPLv3+","COPYING","fakeroot_1.18.2.orig.tar.bz2" 14 / 14 "lzop","1.03","GPLv2+","COPYING","lzop-1.03.tar.gz" "pkgconf","0.8.9","pkgconf license","COPYING","pkgconf-0.8.9.tar.bz2" http://buildroot.net.
Load more

Recommended publications
  • CNTR: Lightweight OS Containers
    CNTR: Lightweight OS Containers Jorg¨ Thalheim, Pramod Bhatotia Pedro Fonseca Baris Kasikci University of Edinburgh University of Washington University of Michigan Abstract fundamental to achieve high efficiency in virtualized datacenters and enables important use-cases, namely Container-based virtualization has become the de-facto just-in-time deployment of applications. Moreover, standard for deploying applications in data centers. containers significantly reduce operational costs through However, deployed containers frequently include a higher consolidation density and power minimization, wide-range of tools (e.g., debuggers) that are not required especially in multi-tenant environments. Because of all for applications in the common use-case, but they these advantages, it is no surprise that containers have seen are included for rare occasions such as in-production wide-spread adoption by industry, in many cases replacing debugging. As a consequence, containers are significantly altogether traditional virtualization solutions [17]. larger than necessary for the common case, thus increasing the build and deployment time. Despite being lightweight, deployed containers often include a wide-range of tools such as shells, editors, CNTR1 provides the performance benefits of lightweight coreutils, and package managers. These additional tools containers and the functionality of large containers by are usually not required for the application’s core function splitting the traditional container image into two parts: the — the common operational use-case — but they are “fat” image — containing the tools, and the “slim” image included for management, manual inspection, profiling, — containing the main application. At run-time, CNTR and debugging purposes [64]. In practice, this significantly allows the user to efficiently deploy the “slim” image and increases container size and, in turn, translates into then expand it with additional tools, when and if necessary, slower container deployment and inefficient datacenter by dynamically attaching the “fat” image.
    [Show full text]
  • Securing Embedded Systems: Analyses of Modern Automotive Systems and Enabling Near-Real Time Dynamic Analysis
    Securing Embedded Systems: Analyses of Modern Automotive Systems and Enabling Near-Real Time Dynamic Analysis Karl Koscher A dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy University of Washington 2014 Reading Committee: Tadayoshi Kohno, Chair Gaetano Borriello Shwetak Patel Program Authorized to Offer Degree: Computer Science and Engineering © Copyright 2014 Karl Koscher University of Washington Abstract Securing Embedded Systems: From Analyses of Modern Automotive Systems to Enabling Dynamic Analysis Karl Koscher Chair of the Supervisory Committee: Associate Professor Tadayoshi Kohno Department of Computer Science and Engineering Today, our life is pervaded by computer systems embedded inside everyday products. These embedded systems are found in everything from cars to microwave ovens. These systems are becoming increasingly sophisticated and interconnected, both to each other and to the Internet. Unfortunately, it appears that the security implications of this complexity and connectivity have mostly been overlooked, even though ignoring security could have disastrous consequences; since embedded systems control much of our environment, compromised systems could be used to inflict physical harm. This work presents an analysis of security issues in embedded systems, including a comprehensive security analysis of modern automotive systems. We hypothesize that dynamic analysis tools would quickly discover many of the vulnerabilities we found. However, as we will discuss, there
    [Show full text]
  • Training Embedded Linux with Ac6 System Workbench: Implementing Linux on Embedded Systems - Operating Systems: Linux
    Training Embedded Linux with Ac6 System Workbench: Implementing Linux on Embedded Systems - Operating Systems: Linux D1S - Embedded Linux with Ac6 System Workbench Implementing Linux on Embedded Systems Objectives Understanding the architecture of the Linux system Learn how to install Linux on your hardware and create a BSP Explore the Linux system architecture Booting Linux Initializing the system Install existing packages on the target Learn how to install Linux on flash chips Labs are conducted on target boards, that can be: Dual Cortex/A7-based "STM32MP15-DISCO" boards from STMicroelectronics. Quad Cortex/A9-based "SabreLite" boards from NXP. Quad Cortex/A53-based "imx8q-evk" boards from NXP. We use a recent (4.x) linux kernel, as supported by the chip supplier. All labs are conducted using the System Workbench for Linux IDE. Course environment Printed course material (in English) One Linux PC for two trainees. One target platform for two trainees A version of “Ac6 System Workbench for Linux – Basic Edition” is provided free of charge to each trainee Prerequisite Good C programming skills Knowledge of Linux user programming (see our D0 - Linux User Mode Programming course) Preferably knowledge of Linux kernel and driver programming (see our D3 - Linux Drivers course) D1S - Embedded Linux with Ac6 System Workbench 09/28/21 Plan First Day Introduction to Linux Linux history and Version management Linux system architecture Processes and MMU System calls Shared libraries Linux components Toolchain Bootloader Kernel Root file system Linux
    [Show full text]
  • Root Filesystem
    >>> Operating Systems And Applications For Embedded Systems >>> Root Filesystem Name: Mariusz Naumowicz Date: 27 sierpnia 2018 [~]$ _ [1/21] >>> Plan 1. Root Filesystem Useful System Filesystem Hierarchy Standard (FHS) Staging directory 2. Programs The init program Shell Utilities BusyBox ToyBox Libraries Reducing size by stripping Device nodes The proc and sysfs flesystems Mounting flesystems Additional reading Standalone ramdisk Minimizing size Booting with QEMU Additional reading [~]$ _ [2/21] >>> Useful System * init: The program that starts everything off, usually by running a series of scripts. * shell: Needed to give you a command prompt but, more importantly, to run the shell scripts called by init and other programs. * daemons: Various server programs, started by init. * libraries: Usually, the programs mentioned so far are linked with shared libraries which must be present in the root filesystem. * Configuration files: The configuration for init and other daemons is stored in a series of ASCII text files, usually in the /etc directory. * Device nodes: The special files that give access to various device drivers. * /proc and /sys: Two pseudo filesystems that represent kernel data structures as a hierarchy of directories and files. Many programs and library functions read these files. * kernel modules: If you have configured some parts of your kernel to be modules, they will be here, usually in /lib/modules/[kernel version]. [1. Root Filesystem]$ _ [3/21] >>> Filesystem Hierarchy Standard (FHS) * /bin: programs essential for all
    [Show full text]
  • Yocto-Slides.Pdf
    Yocto Project and OpenEmbedded Training Yocto Project and OpenEmbedded Training © Copyright 2004-2021, Bootlin. Creative Commons BY-SA 3.0 license. Latest update: October 6, 2021. Document updates and sources: https://bootlin.com/doc/training/yocto Corrections, suggestions, contributions and translations are welcome! embedded Linux and kernel engineering Send them to [email protected] - Kernel, drivers and embedded Linux - Development, consulting, training and support - https://bootlin.com 1/296 Rights to copy © Copyright 2004-2021, Bootlin License: Creative Commons Attribution - Share Alike 3.0 https://creativecommons.org/licenses/by-sa/3.0/legalcode You are free: I to copy, distribute, display, and perform the work I to make derivative works I to make commercial use of the work Under the following conditions: I Attribution. You must give the original author credit. I Share Alike. If you alter, transform, or build upon this work, you may distribute the resulting work only under a license identical to this one. I For any reuse or distribution, you must make clear to others the license terms of this work. I Any of these conditions can be waived if you get permission from the copyright holder. Your fair use and other rights are in no way affected by the above. Document sources: https://github.com/bootlin/training-materials/ - Kernel, drivers and embedded Linux - Development, consulting, training and support - https://bootlin.com 2/296 Hyperlinks in the document There are many hyperlinks in the document I Regular hyperlinks: https://kernel.org/ I Kernel documentation links: dev-tools/kasan I Links to kernel source files and directories: drivers/input/ include/linux/fb.h I Links to the declarations, definitions and instances of kernel symbols (functions, types, data, structures): platform_get_irq() GFP_KERNEL struct file_operations - Kernel, drivers and embedded Linux - Development, consulting, training and support - https://bootlin.com 3/296 Company at a glance I Engineering company created in 2004, named ”Free Electrons” until Feb.
    [Show full text]
  • Embedded Linux Training
    Free Electrons Embedded Linux training Gregory Clement Thomas Petazzoni Michael Opdenacker Free Electrons. Kernel, drivers and embedded Linux development, consulting, training and support. http//free-electrons.com Rights to copy © Copyright 2004-2011, Free Electrons [email protected] Electronic version of this document available on http://free-electrons.com/doc/training/embedded-linux Updates will be available on http://free-electrons.com/doc/training/embedded-linux/ Attribution ± ShareAlike 3.0 Corrections, suggestions, You are free contributions and translations are welcome! to copy, distribute, display, and perform the work to make derivative works Latest update: Feb 14, 2011 to make commercial use of the work Under the following conditions Attribution. You must give the original author credit. Share Alike. If you alter, transform, or build upon this work, you may distribute the resulting work only under a license identical to this one. For any reuse or distribution, you must make clear to others the license terms of this work. Any of these conditions can be waived if you get permission from the copyright holder. Your fair use and other rights are in no way affected by the above. License text: http://creativecommons.org/licenses/by-sa/3.0/legalcode Free Electrons. Kernel, drivers and embedded Linux development, consulting, training and support. http//free-electrons.com Linux kernel Linux device drivers Free Electrons Board support code Our services Mainstreaming kernel code Kernel debugging Custom Development System integration
    [Show full text]
  • MANAGING a REAL-TIME EMBEDDED LINUX PLATFORM with BUILDROOT John Diamond, Kevin Martin Fermi National Accelerator Laboratory, Batavia, IL 60510
    MANAGING A REAL-TIME EMBEDDED LINUX PLATFORM WITH BUILDROOT John Diamond, Kevin Martin Fermi National Accelerator Laboratory, Batavia, IL 60510 Desktop distributions are an awkward Buildroot + ucLibc + Busybox + RTAI Quantitative Results implementation of an Embedded RTOS Buildroot – downloads, unpacks, • Whole build process is automated resulting in • Architecture-dependent binary configures, compiles and installs system much quicker build times (hours not days) software automatically • Kernel and root filesystem size: 3.5 MB – 20 packages uClibc – Small-footprint standard C library MB (reduction of 99%) • Loaded with unnecessary software Busybox – all-in-one UNIX utilities and shell • Boot-time: ~9 seconds • Huge footprints RTAI – Real-Time Linux extensions = Qualitative Results • Allows integration with revision control into First Try: Build Linux from Source the platform development process, making it • Success! But.. 2. Buildroot’s menuconfig generates a package configuration file easier to manage an ecosystem of targets • Is as difficult as it sounds and kernel configuration file • Community support for x86 & ARM targets Linux Kernel • Overwhelming number of packages and Configuration gives us confidence that future targets can be patches Package supported without much effort 1. Developer Configuration • No version control configures build via Buildroot’s • Cross-compile even more headaches menuconfig Internet Build Process Power Supply Control Quench Protection Git / CVS / SVN and Regulation for the System for Tevatron Did not do what we needed: Fermilab Linac Electron Lens (TEL II) 3. The build process pulls 4. The output from the software packages from build process is a kernel • Small-footprint network bootable image the internet and custom bzImage bzImage file with an softare packages from a integrated root filesystem ARM Cortex A-9 source code repository file PC/104 AMD • Automated build system Geode SBC Beam Position Monitor Power Supply Control prototype for Fermilab and Regulation for • Support for multiple architectures 5.
    [Show full text]
  • Cross-Compiler Bipartite Vulnerability Search
    electronics Article Cross-Compiler Bipartite Vulnerability Search Paul Black * and Iqbal Gondal Internet Commerce Security Laboratory (ICSL), Federation University, Ballarat 3353, Australia; [email protected] * Correspondence: [email protected] Abstract: Open-source libraries are widely used in software development, and the functions from these libraries may contain security vulnerabilities that can provide gateways for attackers. This paper provides a function similarity technique to identify vulnerable functions in compiled programs and proposes a new technique called Cross-Compiler Bipartite Vulnerability Search (CCBVS). CCBVS uses a novel training process, and bipartite matching to filter SVM model false positives to improve the quality of similar function identification. This research uses debug symbols in programs compiled from open-source software products to generate the ground truth. This automatic extraction of ground truth allows experimentation with a wide range of programs. The results presented in the paper show that an SVM model trained on a wide variety of programs compiled for Windows and Linux, x86 and Intel 64 architectures can be used to predict function similarity and that the use of bipartite matching substantially improves the function similarity matching performance. Keywords: malware similarity; function similarity; binary similarity; machine-learning; bipar- tite matching 1. Introduction Citation: Black, P.; Gondal, I. Cross-Compiler Bipartite Function similarity techniques are used in the following activities, the triage of mal- Vulnerability Search. Electronics 2021, ware [1], analysis of program patches [2], identification of library functions [3], analysis of 10, 1356. https://doi.org/10.3390/ code authorship [4], the identification of similar function pairs to reduce manual analysis electronics10111356 workload, [5], plagiarism analysis [6], and for vulnerable function identification [7–9].
    [Show full text]
  • Operating System Components for an Embedded Linux System
    INSTITUTEFORREAL-TIMECOMPUTERSYSTEMS TECHNISCHEUNIVERSITATM¨ UNCHEN¨ PROFESSOR G. F ARBER¨ Operating System Components for an Embedded Linux System Martin Hintermann Studienarbeit ii Operating System Components for an Embedded Linux System Studienarbeit Executed at the Institute for Real-Time Computer Systems Technische Universitat¨ Munchen¨ Prof. Dr.-Ing. Georg Farber¨ Advisor: Prof.Dr.rer.nat.habil. Thomas Braunl¨ Author: Martin Hintermann Kirchberg 34 82069 Hohenschaftlarn¨ Submitted in February 2007 iii Acknowledgements At first, i would like to thank my supervisor Prof. Dr. Thomas Braunl¨ for giving me the opportunity to take part at a really interesting project. Many thanks to Thomas Sommer, my project partner, for his contribution to our good work. I also want to thank also Bernard Blackham for his assistance by email and phone at any time. In my opinion, it was a great cooperation of all persons taking part in this project. Abstract Embedded systems can be found in more and more devices. Linux as a free operating system is also becoming more and more important in embedded applications. Linux even replaces other operating systems in certain areas (e.g. mobile phones). This thesis deals with the employment of Linux in embedded systems. Various architectures of embedded systems are introduced and the characteristics of common operating systems for these devices are reviewed. The architecture of Linux is examined by looking at the particular components such as kernel, standard C libraries and POSIX tools for embedded systems. Furthermore, there is a survey of real-time extensions for the Linux kernel. The thesis also treats software development for embedded Linux ranging from the prerequi- sites for compiling software to the debugging of binaries.
    [Show full text]
  • Implantación De Linux Sobre Microcontroladores
    Embedded Linux system development Embedded Linux system development DSI Embedded Linux Free Electrons Developers © Copyright 2004-2018, Free Electrons. Creative Commons BY-SA 3.0 license. Latest update: March 14, 2018. Document updates and sources: http://free-electrons.com/doc/training/embedded-linux Corrections, suggestions, contributions and translations are welcome! DSI - FCEIA http://dsi.fceia.unr.edu.ar 1/263 Derechos de copia © Copyright 2018, Luciano Diamand Licencia: Creative Commons Attribution - Share Alike 3.0 http://creativecommons.org/licenses/by-sa/3.0/legalcode Ud es libre de: I copiar, distribuir, mostrar y realizar el trabajo I hacer trabajos derivados I hacer uso comercial del trabajo Bajo las siguientes condiciones: I Atribuci´on. Debes darle el cr´editoal autor original. I Compartir por igual. Si altera, transforma o construye sobre este trabajo, usted puede distribuir el trabajo resultante solamente bajo una licencia id´enticaa ´esta. I Para cualquier reutilizaci´ono distribuci´on,debe dejar claro a otros los t´erminos de la licencia de este trabajo. I Se puede renunciar a cualquiera de estas condiciones si usted consigue el permiso del titular de los derechos de autor. El uso justo y otros derechos no se ven afectados por lo anterior. DSI - FCEIA http://dsi.fceia.unr.edu.ar 2/263 Hiperv´ınculosen el documento Hay muchos hiperv´ınculosen el documento I Hiperv´ıncluosregulares: http://kernel.org/ I Enlaces a la documentaci´ondel Kernel: Documentation/kmemcheck.txt I Enlaces a los archivos fuente y directorios del kernel: drivers/input include/linux/fb.h I Enlaces a declaraciones, definiciones e instancias de los simbolos del kernel (funciones, tipos, datos, estructuras): platform_get_irq() GFP_KERNEL struct file_operations DSI - FCEIA http://dsi.fceia.unr.edu.ar 3/263 Introducci´ona Linux Embebido Introducci´ona DSI Linux Embebido Embedded Linux Developers Free Electrons © Copyright 2004-2018, Free Electrons.
    [Show full text]
  • Linux Embebido Workshop Linux Embebido
    Linux embebido Workshop Linux Embebido Lucas Chiesa Joaquín de Andrés Germán Bassi Laboratorio Sistemas embebidos FIUBA Creative Commons BY-SA 3.0 license Basado en : http://free-electrons.com/docs/embedded-linux-intro ¿Sistema embebido? Un sistema embebido o empotrado es un sistema de computación diseñado para realizar una o algunas pocas funciones dedicadas frecuentemente en un sistema de computación en tiempo real. Los sistemas embebidos se utilizan para usos muy diferentes a los usos generales a los que se suelen someter a las computadoras personales. Wikipedia, http://es.wikipedia.org/wiki/Sistema_embebido SASE 2011 - Workshop Linux embebido 2 Muchos sistemas diferentes Es una definición muy genérica: Cubre muchos tipos diferentes de sistemas Linea borrosa con sistemas tradicionales Productos ªConsumer electronics (CE)º: Routers hogareños, reproductores de DVD, Televisores, cámaras digitales, GPS, celulares ... Productos industriales: Controladores de máquinas, alarmas, equipos de vigilancia, autos, satélites... SASE 2011 - Workshop Linux embebido 3 Muchos productos diferentes SASE 2011 - Workshop Linux embebido 4 Linux Embebido El Software Libre y Abierto ofrece una rango muy amplio de herramientas para desarrollar sistemas embebidos. Ventajas Reutilizar componentes existentes para el sistema base. Permite concentrarse en el valor agregado del producto. Componentes de alta calidad y muy probados. (Kernel Linux , librerías de C ...) Control completo sobre la elección de componentes. Modificaciones posibles ilimitadas. Soporte por la comunidades: tutoriales, listas de correo... Bajo costo, sin licencias por unidad. Acceso más simple al software y a las herramientas. SASE 2011 - Workshop Linux embebido 5 Ejemplos de dispositivos GPS: TomTom y Garmin Routers hogareños: Linksys, Netgear PDA: Zaurus, Nokia N8x0 TVs, DVDs: Sony, Philips, ..
    [Show full text]
  • Starting with the Yocto Project
    FOSDEM 2015 Starting with the Yocto Project Alexandre Belloni Free Electrons [email protected] Put your business card in the box to participate in the raffle! Free Electrons. Kernel, drivers and embedded Linux development, consulting, training and support. http://free-electrons.com 1/74 Alexandre Belloni I Embedded Linux engineer at Free Electrons I Embedded Linux expertise Free Electrons I Development, consulting and training I Strong open-source focus Embedded Linux Developers I Open-source contributor I Contributing the kernel support for Atmel ARM processors I Contributing the kernel support for Marvell ARM (Berlin) processors I Maintainer of the Crystalfontz boards in the meta-fsl-arm layer Free Electrons. Kernel, drivers and embedded Linux development, consulting, training and support. http://free-electrons.com 2/74 What is the Yocto Project ? I Umbrella project, including: I pseudo I cross-prelink I matchbox I opkg I psplash I ... I The core components of the Yocto Project are: I BitBake, the build engine. It is a task scheduler, like make. It interprets configuration files and recipes (also called metadata) to perform a set of tasks, to download, configure and build specified packages and filesystem images. I OpenEmbedded-Core, a set of base layers. It is a set of recipes, layers and classes which are shared between all OpenEmbedded based systems. I Poky, the reference system. It is a collection of projects and tools, used to bootstrap a new distribution based on the Yocto Project. Free Electrons. Kernel, drivers and embedded Linux development, consulting, training and support. http://free-electrons.com 3/74 The Yocto Project lexicon Free Electrons.
    [Show full text]