yocto project extensible sdk - elinux · yocto project* extensible sdk simplifying the workflow for...
TRANSCRIPT
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Yocto Project* Extensible SDKsimplifying the workflow for application developers
Henry BruceIntel Open Source Technology Center
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Why do we need the Extensible SDK?
How do distro maintainers create one?
How does the Extensible SDK improve workflow?
Not a devtool deep dive
What We’ll be Covering
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What is the Extensible sdk
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Develop code to run on target machine
Delivered as a shell script installer
• Cross-Development toolchain
• Target libraries, headers, and symbols
• Environment setup script
THE standard SDK
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Updateable
Extensible
Packages
Images
Teamwork
what Could BE IMPROVED?
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Major design change
Shrink-wrapped distro maintainer environment
Allows compact installer (as small as 35MB)
Updateable and extensible – lazy install
Simplifies team-work
First appeared in Jethro, usable in Krogoth
Meet the Extensible SDK
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Using the Extensible sdk
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Installer created by distro maintainer
Shell script installer
Completely self contained
Can be installed to an arbitrary location
INSTALL
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poky-glibc-x86_64-core-image-minimal-i586-toolchain-ext-2.2.1.sh$ chmod +x poky-glibc-x86_64-core-image-minimal-i586-toolchain-ext-2.2.1.sh
$ ./poky-glibc-x86_64-core-image-minimal-i586-toolchain-ext-2.2.1.sh –d mysdk
Poky (Yocto Project Reference Distro) Extensible SDK installer version 2.2.1
You are about to install the SDK to "/home/hbruce/mysdk". Proceed[Y/n]? Y
Extracting SDK....done
Extracting buildtools...
Preparing build system...
Parsing recipes: 100% |####################################| Time: 0:00:17
SDK has been successfully set up and is ready to be used.
Each time you wish to use the SDK in a new shell session, you need to source
the environment setup script e.g.
. /home/hbruce/mysdk/environment-setup-i586-poky-linux
Install example
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Assumes SDK contains toolchain
$ . /home/hbruce/mysdk/environment-setup-i586-poky-linux
$ $(CC) hello.c –o hello
Also enables Eclipse* integration
Keep updatability but act like standard SDK
Simple example
*Other names and brands may be claimed as the property of others.
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Most of the distro maintainer tools
• devtool
• recipetool
• wic
• …
Access to new tools
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$ . /home/hbruce/mysdk/environment-setup-i586-poky-linux
$ devtool add https://github.com/whbruce/bbexample.git
$ devtool edit-recipe bbexample
$ devtool build bbexample
$ devtool deploy-target bbexample [email protected]
Run, fix, repeat.
$ devtool finish bbexample /path/to/bitbake/layer
Issue pull request
Maintainer builds and publishes updated eSDK with your work in it
Example devtool workflow
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Update$ devtool sdk-update [url]
Extend$ devtool search package-name
$ devtool sdk-install [-s] recipe-name
Example$ devtool sdk-install meta-extsdk-toolchain
Updating and Extending the SDK
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A Docker* container is available
https://hub.docker.com/r/crops/extsdk-container
Enables operation on macOS* and Windows*
Run in a container
*Other names and brands may be claimed as the property of others.
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Tasks for the distro maintainer
Creating and maintaining an extensible sdk
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Build$ bitbake image-recipe -c populate_sdk_ext
Default contains everything for image recipe
SDK installer in tmp/deploy/sdk
Make installer available to your developers
Generating SDK: Building
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Make a minimal installer (full by default)SDK_EXT_TYPE = "minimal"
Add toolchain to minimal installerSDK_INCLUDE_TOOLCHAIN = “1”
Add all package info SDK_INCLUDE_PKGDATA = “1”
Add specific tools or librariesSDK_EXTRA_TOOLS += “nativesdk-package-name”
TOOLCHAIN_HOST_TASK += “package-name”
Configure Esdk: Installer aND CONTENT
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Define a URL for the updater, say http://mysite.com/sdk-updater
Set default update URL in your configurationSDK_UPDATE_URL = "http://mysite.com/sdk-updater”
When you make change, re-build SDK and generate updater files$ oe-publish-sdk tmp/deploy/sdk/installer.sh /path/to/sdk-updater
Let your developers know when updates are available
CONFIGURE ESDK: Updater
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Pre-built objects on a server
eSDK checks if you can re-use objects
Qemux86 core-image-minimal build times
• Without: 35mins
• With: 1 min
Faster builds through Shared State
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Define URL of the shared state mirror server. http://mysite.com/sstate-cache
Set in conf/sdk-extra.confSSTATE_MIRRORS = "file://.* http://mysite.com/sstate-cache/PATH"
Ensure sstate-cache is served up at this location
CONFIGURE SDK: Shared State mirror
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Pulling it all together
Extensible sdk Workflow
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BubbaDistro
Eng
JoeC Lib Dev
LauriePython
App Eng
BetsyJS App Dev
(3rd party)
eSDKServer
Bubba makes eSDK1
1
eSDK
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BubbaDistro
Eng
JoeC Lib Dev
LauriePython
App Eng
BetsyJS App Dev
(3rd party)
eSDKServer
Update eSDK
Bubba makes eSDK1
Joe updates eSDK2
1 2
eSDK
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BubbaDistro
Eng
JoeC Lib Dev
LauriePython
App Eng
BetsyJS App Dev
(3rd party)
eSDKServer
3
Update eSDK
Uses “devtool add” to generate recipe3
Recipe
Bubba makes eSDK1
Joe updates eSDK2
1 2
eSDK
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BubbaDistro
Eng
JoeC Lib Dev
LauriePython
App Eng
BetsyJS App Dev
(3rd party)
eSDKServer
Build/debug
Sensor Lib
3
4
Update eSDK
Recipe
Build and debug sensor Lib4
1 2
eSDK3 Uses “devtool add” to generate recipe
1 Bubba makes eSDK
2 Joe updates eSDK
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BubbaDistro
Eng
JoeC Lib Dev
LauriePython
App Eng
BetsyJS App Dev
(3rd party)
eSDKServer
Build/debug
Sensor Lib
“Finalize” Recipe
3
4
Update eSDK
Recipe
When Lib is ready “devtool finish” finalizes recipe (and patches), and sends recipe to Bubba
5
5
1 2
eSDK3 Uses “devtool add” to generate recipe
4 Build and debug sensor Lib
1 Bubba makes eSDK
2 Joe updates eSDK
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BubbaDistro
Eng
JoeC Lib Dev
LauriePython
App Eng
BetsyJS App Dev
(3rd party)
eSDKServer
CI
Test
Build/debug
Sensor Lib
“Finalize” Recipe
3
4
6Bubba “turns the crank” for continuous integration process
Update eSDK
Recipe
5
61 2
eSDK3 Uses “devtool add” to generate recipe
4 Build and debug sensor Lib
5When Lib is ready “devtool finish” finalizes recipe (and patches), and sends recipe to Bubba
1 Bubba makes eSDK
2 Joe updates eSDK
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BubbaDistro
Eng
JoeC Lib Dev
LauriePython
App Eng
BetsyJS App Dev
(3rd party)
eSDKServer
CI
Test
“Revised”
eSDK
Build/debug
Sensor Lib
“Finalize” Recipe
3
4
7Bubba publishes “revised” eSDK with Joe’s sensor Lib
Update eSDK
Recipe
5
6
7
1 2
eSDK
6Bubba “turns the crank” for continuous integration process
3 Uses “devtool add” to generate recipe
4 Build and debug sensor Lib
5When Lib is ready “devtool finish” finalizes recipe (and patches), and sends recipe to Bubba
1 Bubba makes eSDK
2 Joe updates eSDK
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BubbaDistro
Eng
JoeC Lib Dev
LauriePython
App Eng
BetsyJS App Dev
(3rd party)
eSDKServer
CI
Test
“Revised”
eSDK
Build/debug
Sensor Lib
“Finalize” Recipe
3
4
8
Update eSDK
Update eSDK
Recipe
5
6
7
Laurie and Betsy update their eSDKs8
8
Update eSDK
1 2
eSDK
7Bubba publishes “revised” eSDK with Joe’s sensor Lib
6Bubba “turns the crank” for continuous integration process
3 Uses “devtool add” to generate recipe
4 Build and debug sensor Lib
5When Lib is ready “devtool finish” finalizes recipe (and patches), and sends recipe to Bubba
1 Bubba makes eSDK
2 Joe updates eSDK
![Page 30: Yocto Project Extensible SDK - eLinux · Yocto Project* Extensible SDK simplifying the workflow for application developers Henry Bruce ... (CC) hello.c –o hello Also enables Eclipse*](https://reader034.vdocument.in/reader034/viewer/2022052423/5f05c63e7e708231d414a3fa/html5/thumbnails/30.jpg)
BubbaDistro
Eng
JoeC Lib Dev
LauriePython
App Eng
BetsyJS App Dev
(3rd party)
eSDKServer
CI
Test
“Revised”
eSDK
Build/debug
Sensor Lib
“Finalize” Recipe
3
4
8
9They use “devtool add” to generate recipes; Laurie for a Python app, Betsy for a Node.js app
Update eSDK
Update eSDK
Recipe
5
6
7
8
Recipe
9
Recipe
9
Update eSDK
1 2
eSDK
7Bubba publishes “revised” eSDK with Joe’s sensor Lib
6Bubba “turns the crank” for continuous integration process
3 Uses “devtool add” to generate recipe
4 Build and debug sensor Lib
5When Lib is ready “devtool finish” finalizes recipe (and patches), and sends recipe to Bubba
8 Laurie and Betsy update their eSDKs
1 Bubba makes eSDK
2 Joe updates eSDK
![Page 31: Yocto Project Extensible SDK - eLinux · Yocto Project* Extensible SDK simplifying the workflow for application developers Henry Bruce ... (CC) hello.c –o hello Also enables Eclipse*](https://reader034.vdocument.in/reader034/viewer/2022052423/5f05c63e7e708231d414a3fa/html5/thumbnails/31.jpg)
BubbaDistro
Eng
JoeC Lib Dev
LauriePython
App Eng
BetsyJS App Dev
(3rd party)
eSDKServer
CI
Test
“Revised”
eSDK
Build/debug
Sensor Lib
“Finalize” Recipe
3
4
Build/debug
App
8
Update eSDK
Update eSDK
Recipe
5
6
7
8
Recipe
9
Recipe
9
Build/debug
App
12
They build and debug their apps10
Update eSDK
1 2
10 10
eSD
K
9They use “devtool add” to generate recipes; Laurie for a Python app, Betsy for a Node.js app
7Bubba publishes “revised” eSDK with Joe’s sensor Lib
6Bubba “turns the crank” for continuous integration process
3 Uses “devtool add” to generate recipe
4 Build and debug sensor Lib
5When Lib is ready “devtool finish” finalizes recipe (and patches), and sends recipe to Bubba
8 Laurie and Betsy update their eSDKs
1 Bubba makes eSDK
2 Joe updates eSDK
![Page 32: Yocto Project Extensible SDK - eLinux · Yocto Project* Extensible SDK simplifying the workflow for application developers Henry Bruce ... (CC) hello.c –o hello Also enables Eclipse*](https://reader034.vdocument.in/reader034/viewer/2022052423/5f05c63e7e708231d414a3fa/html5/thumbnails/32.jpg)
BubbaDistro
Eng
JoeC Lib Dev
LauriePython
App Eng
BetsyJS App Dev
(3rd party)
eSDKServer
CI
Test
“Revised”
eSDK
Build/debug
Sensor Lib
“Finalize” Recipe
3
4
Build/debug
App
“Finalize” Recipe
8
Update eSDK
Update eSDK
Recipe
5
6
7
8
Recipe
9
Recipe
9
Build/debug
App
“Finalize” Recipe
When apps are working, they use “devtoolfinish” and send recipes to Bubba11
Update eSDK
1 2
10 10
11 11
eSDK
9They use “devtool add” to generate recipes; Laurie for a Python app, Betsy for a Node.js app
7Bubba publishes “revised” eSDK with Joe’s sensor Lib
6Bubba “turns the crank” for continuous integration process
3 Uses “devtool add” to generate recipe
4 Build and debug sensor Lib
5When Lib is ready “devtool finish” finalizes recipe (and patches), and sends recipe to Bubba
8 Laurie and Betsy update their eSDKs
1 Bubba makes eSDK
2 Joe updates eSDK
10 They build and debug their apps
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BubbaDistro
Eng
JoeC Lib Dev
LauriePython
App Eng
BetsyJS App Dev
(3rd party)
eSDKServer
CI
Test
“Revised”
eSDK
Build/debug
Sensor Lib
“Finalize” Recipe
3
4
Build/debug
App
“Finalize” Recipe
8
Update eSDK
Update eSDK
Recipe
5
6
7
8
Recipe
9
Recipe
9
Build/debug
App
“Finalize” Recipe
12
Bubba “turns the crank” and ships the product image12
Update eSDK
1 2
10 10
11 11
eSDK
9They use “devtool add” to generate recipes; Laurie for a Python app, Betsy for a Node.js app
7Bubba publishes “revised” eSDK with Joe’s sensor Lib
6Bubba “turns the crank” for continuous integration process
3 Uses “devtool add” to generate recipe
4 Build and debug sensor Lib
5When Lib is ready “devtool finish” finalizes recipe (and patches), and sends recipe to Bubba
8 Laurie and Betsy update their eSDKs
1 Bubba makes eSDK
2 Joe updates eSDK
10 They build and debug their apps
11When apps are working, they use “devtoolfinish” and send recipes to Bubba
![Page 34: Yocto Project Extensible SDK - eLinux · Yocto Project* Extensible SDK simplifying the workflow for application developers Henry Bruce ... (CC) hello.c –o hello Also enables Eclipse*](https://reader034.vdocument.in/reader034/viewer/2022052423/5f05c63e7e708231d414a3fa/html5/thumbnails/34.jpg)
Wrap up
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Shared development environment
Power of devtool
Improved team workflow
Leverages shared state for faster builds
Runs on a range of host operating systems
Extensible sdk benefits
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Paul Eggleton
Randy Witt
Brian Avery
Doug Martin
Thanks
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Use the Extensible SDK
Use it on Windows and Mac
https://wiki.yoctoproject.org/wiki/Extensible_SDK
Call to Action
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questions
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Disclaimer
39
Intel and the Intel logo are trademarks of Intel Corporation in the U.S. and/or other countries.
*Other names and brands may be claimed as the property of others.
© Intel Corporation