Yocto Overview. Dexuan Cui Intel Corporation

Transcription

1 Yocto Overview Dexuan Cui Intel Corporation

2 Agenda Introduction to the Yocto Project Participating Organizations Yocto Project Build System Yocto Project Workflow Quick Start Guide in a Slide

3 What is the Yocto Project? The Story Linux is becoming increasingly popular for Embedded Non-commercial & commercial embedded Linux has many distros Result is: Developers spend lots of time porting or making build systems Leaves less time/money to develop interesting software features The industry needs a common build system and core technology Industry leaders have joined together to form the Yocto Project The benefit of doing so is: Less time spent on things which don t make money (build system, core Linux components) Linux grows more in embedded

4 What is the Yocto Project? Distribution build environment and tools for embedded Supports ARM, PPC, MIPS, x86 (32 & 64 bit) Open source project with a strong community Content Complete Linux OS with package metadata Releases every 6 months with latest (but stable) kernel, toolchain, and package versions, Cutting-edge metadata tracking a variety of open source upstreams Common Linux BSP format and reference images, place for Industry to publish BSPs App Dev Tools which allow development against the stack, including Eclipse plug-ins and emulators Full documentation representative of a consistent system It s not an embedded Linux distribution It creates a custom one for you.

5 Why Should a Developer Care? Build a complete Linux system in about an hour from sources (about 90 minutes with X). Start with a validated collection of packages (toolchain, kernel, user space). Access to a great collection of app developer tools (performance, debug, power analysis, Eclipse). We distinguish app developers from system developers and we support both. Manage patches with included kernel development tools. Supports all major embedded architectures (x86, x86-64, ARM, PPC, MIPS), just change a line in a config file and rebuild. Transitions easily to a commercial embedded Linux (Mentor Graphics, Montavista, Timesys, Wind River).

6 Participating Organizations It is a Linux Foundation project!

7 Yocto Project Build System Poky = BitBake + metadata Poky build system used by the Yocto Project BitBake a task executor and scheduler Metadata task definitions Configuration (.conf) global definitions of variables Recipes (.bb) the logical units of software/images to build Classes (.bbclass) encapsulation and inheritance of build logic, packaging, etc.

8 Yocto Project Workflow

9 Quick Start in a Slide Obtain the poky source: git clone git://git.yoctoproject.org/poky Build a Linux image $ cd poky; source oe-init-build-env $ MACHINE=qemux86 bitbake core-image-sato Run the image under emulation: runqemu qemux86 For more detailed info, see the Quick Start guide

10 Quick Start Guide in a Slide Obtain our sources: git clone git://git.yoctoproject.org/poky Build a Linux image $ cd poky; source oe-init-build-env $ MACHINE=qemux86 bitbake core-image-sato Run the image under emulation: runqemu qemux86

11 Yocto Resources The Yocto Project is an open source project, and aims to deliver an open standard for the embedded Linux community and industry Development is done in the open through public mailing lists: And public code repositories: Documentations: Bug reports and feature requests: Join us! Join the community!

12 Legal Information INFORMATION IN THIS DOCUMENT IS PROVIDED IN CONNECTION WITH INTEL PRODUCTS. EXCEPT AS PROVIDED IN INTEL'S TERMS AND CONDITIONS OF SALE FOR SUCH PRODUCTS, INTEL ASSUMES NO LIABILITY WHATSOEVER, AND INTEL DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY RELATING TO SALE AND/OR USE OF INTEL PRODUCTS, INCLUDING LIABILITY OR WARRANTIES RELATING TO FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, OR INFRINGEMENT OF ANY PATENT, COPYRIGHT, OR OTHER INTELLECTUAL PROPERTY RIGHT. Intel may make changes to specifications, product descriptions, and plans at any time, without notice. All dates provided are subject to change without notice. Intel is a trademark of Intel Corporation in the U.S. and other countries. *Other names and brands may be claimed as the property of others. Copyright 2012, Intel Corporation. All rights reserved.

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