2.0 -//Pentabarf//Schedule//EN PUBLISH J8TDME@@pretalx.com -J8TDME Welcome to Yocto Project Summit 2021.11 (Beginners) en en 20211130T120000 20211130T121000 001000

Welcome to Yocto Project Summit 2021.11 (Beginners)

Welcome talk to introduce the Summit to all the attendees. Training track attendees should come first to this talk before heading over to the training room for the first session there. Presentation track attendees can just stay in this track for the rest of the day! PUBLIC CONFIRMED Lightning Talk https://pretalx.com/yocto-project-summit-2021-11/talk/J8TDME/ Room A Behan Webster PUBLISH RUCVC8@@pretalx.com -RUCVC8 Introduction to the Yocto Project and Bitbake en en 20211130T123000 20211130T153000 030000

Introduction to the Yocto Project and Bitbake

This talk will be the first of a series of 2 seminars which will cover the topics of: * Bitbake * Recipes * Tasks * Operators * Common variables * What to do when things go wrong * Building an embedded image http://bit.ly/YPS202111-intro PUBLIC CONFIRMED Hand-on class https://pretalx.com/yocto-project-summit-2021-11/talk/RUCVC8/ Room A Behan Webster PUBLISH QEXZMU@@pretalx.com -QEXZMU Introduction to Layers, Images and more en en 20211130T163000 20211130T193000 030000

Introduction to Layers, Images and more

This talk will be the second of a series of 2 seminars which will cover the topics of: * Introduction to layers * What's in each of the provided layers * Booting your image with QEMU * Board support packages * Images * Toaster * Building an application http://bit.ly/YPS202111-intro PUBLIC CONFIRMED Hand-on class https://pretalx.com/yocto-project-summit-2021-11/talk/QEXZMU/ Room A Tom King PUBLISH VCBG3K@@pretalx.com -VCBG3K Welcome to Yocto Project Summit 2021.1 (hands-on) en en 20211130T123000 20211130T124000 001000

Welcome to Yocto Project Summit 2021.1 (hands-on)

Welcome talk to introduce the Summit to all the attendees. Training track attendees should come first to this talk before heading over to the training room for the first session there. Presentation track attendees can just stay in this track for the rest of the day! PUBLIC CONFIRMED Lightning Talk https://pretalx.com/yocto-project-summit-2021-11/talk/VCBG3K/ Room B David Reyna PUBLISH G3M3PC@@pretalx.com -G3M3PC Hands-on session using devtool, the Yocto Project tool that helps you create/update recipes and work with recipe source trees. en en 20211130T130000 20211130T143000 013000

Hands-on session using devtool, the Yocto Project tool that helps you create/update recipes and work with recipe source trees.

Hands-on session using devtool, the Yocto Project tool that helps you create/update recipes and work with recipe source trees. You will learn how to create new recipes based upon a source tree; modify the sources of a recipe, create patches and update the recipe to apply them; upgrade a recipe to a new upstream version, and more. PUBLIC CONFIRMED Hand-on class https://pretalx.com/yocto-project-summit-2021-11/talk/G3M3PC/ Room B Saul Wold PUBLISH DXL7UV@@pretalx.com -DXL7UV Linux debugging on Yocto Project based systems en en 20211130T153000 20211130T170000 013000

Linux debugging on Yocto Project based systems

There are several techniques to debug an embedded Linux system that can be applied in both user space and kernel space. Depending on the problem, you may need different tools, like addr2line for crash dump analysis, GDB for interactive debugging, ftrace for kernel tracing, valgring to catch memory-related issues, gprof for application profiling, etc. In this hands-on class, we will learn how the Yocto Project can help and improve the experience of the developer when debugging an embedded Linux system, and put into practice with exercises to solve kernel and user-space bugs injected in a QEMU based Linux system. PUBLIC CONFIRMED Hand-on class https://pretalx.com/yocto-project-summit-2021-11/talk/DXL7UV/ Room B Sergio Prado PUBLISH EURLMP@@pretalx.com -EURLMP Hands-On Kernel Lab: Introduction to linux-yocto, kernel config fragments and common workflow patterns en en 20211130T180000 20211130T193000 013000

Hands-On Kernel Lab: Introduction to linux-yocto, kernel config fragments and common workflow patterns

The linux-yocto workflow is a powerful and flexible way to provide a consistent kernel experience across many platforms. But the use of yocto-kernel-cache metadata (a structured tree of kernel fragments) and the linux-yocto git repository often confuses newcomers to the Yocto Project. Many traditional developers prefer to use “a git tree and a defconfig” to build their kernel, so we will also cover this use case. Individual platforms will also differ in the use of bootloader, device tree and other details that involve where the kernel is installed and how it is booted. We will give hands-on practical examples of these use cases to help you on your journey to creating and working with well-behaved Yocto Project BSP layers. PUBLIC CONFIRMED Hand-on class https://pretalx.com/yocto-project-summit-2021-11/talk/EURLMP/ Room B Tim Orling PUBLISH AE8PXM@@pretalx.com -AE8PXM Welcome to Yocto Project Summit 2021.11 (talks) en en 20211201T120000 20211201T121000 001000

Welcome to Yocto Project Summit 2021.11 (talks)

Welcome talk to introduce the Summit to all the attendees. Training track attendees should come first to this talk before heading over to the training room for the first session there. Presentation track attendees can just stay in this track for the rest of the day! PUBLIC CONFIRMED Lightning Talk https://pretalx.com/yocto-project-summit-2021-11/talk/AE8PXM/ Room A Trevor Woerner PUBLISH 83YKWV@@pretalx.com -83YKWV A/B Linux updates with RAUC and meta-rauc-community: now & in the future en en 20211201T122000 20211201T125000 003000

A/B Linux updates with RAUC and meta-rauc-community: now & in the future

The flexibility and open source nature of RAUC makes it a popular solution for A/B updates of embedded Linux devices. The integration of RAUC ith the Yocto Project and OpenEmbedded on a new hardware requires advanced skills because there are numerous steps. To support RAUC we need to setup U-Boot, enable SquashFS in the Linux kernel configurations, use ext4 file system, create partitions and configure RAUC slots, generate certificates and setup U-Boot environment configurations with a script to switch RAUC slots over upgrades. In 2020 a new integration layer called meta-rauc-community was created to simplify the getting started process with RAUC, Yocto and OpenEmbebedded. Initially it contained examples only for Raspberry Pi. Thanks to numerous community contributions support for Allwinner (also known as sunxi) devices and qemux86-64 was added. In 2021 the layer was moved to the RAUC organization in GitHub. What are the next steps and how to port it to new devices? The presentation is appropriate for anyone with basic knowledge about the Yocto Project and OpenEmbedded. It will help other software developers in the community to overcame faster and easier similar technical difficulties while integrating the RAUC client on embedded Linux devices and hopefully contribute back to meta-rauc-community. PUBLIC CONFIRMED Talk https://pretalx.com/yocto-project-summit-2021-11/talk/83YKWV/ Room A Leon Anavi PUBLISH AWE3JP@@pretalx.com -AWE3JP An Overview of the Hash Equivalence & PR Services en en 20211201T125500 20211201T132500 003000

An Overview of the Hash Equivalence & PR Services

### hashserv When bitbake looks at the inputs for a build task (the recipe, inherited classes, relevant variables set by conf files and the inputs of other relevant build tasks), a hash of the input data is generated. This is the basis of the Shared State (sstate) caching provided by bitbake - if in a future build the hash of the input data for a build task is the same, the previously generated sstate can be reused instead of re-running the build task. This allows for significant time savings in subsequent builds once the sstate cache is populated. The Hash Equivalence Service (hashserv) is a standalone service developed within the bitbake project which can further improve sstate re-use. It maintains a database of input hashes for build tasks and the hashes of their output data. Traditionally, if the input hash for a build task changes then all dependent tasks need to be re-executed even if the output data from the first task is identical. However with hashserv enabled, bitbake can detect the case where output data from a task is identical to a previous execution and it can mark the two different input hashes as equivalent. This allows dependent tasks to be skipped where sstate data is available for the previous input hash, potentially giving significant improvements in sstate re-use and corresponding reductions in build time. ### prserv The PR Service (prserv) is a standalone service developed within the bitbake project which maintains a database of input hashes for build tasks and a corresponding package revision (`PR`) value. This allows bitbake to ensure that the package revision increments each time a recipe is rebuilt with different input data. This in turn ensures that on-device package upgrades work as expected when a package is rebuilt PUBLIC CONFIRMED Talk https://pretalx.com/yocto-project-summit-2021-11/talk/AWE3JP/ Room A Paul Barker PUBLISH NRS8DT@@pretalx.com -NRS8DT Embedded Linux on CM4 Carrier Boards, X86 and STM32 Boards with Yocto Project en en 20211201T134000 20211201T141000 003000

Embedded Linux on CM4 Carrier Boards, X86 and STM32 Boards with Yocto Project

With the custom BSP layers for CM4 Carrier Boards, X86, and STM32 Boards, developed by Seeed, developers can start building cross-platform applications right away. Also with the qt5 layer, you can build GUI applications. The addition of the mender layer allows you to perform secure and robust OTA updates to these SBCs. PUBLIC CONFIRMED Talk https://pretalx.com/yocto-project-summit-2021-11/talk/NRS8DT/ Room A Lakshantha Dissanayake PUBLISH NP9AGQ@@pretalx.com -NP9AGQ CI/CD With Zuul and Kubernetes en en 20211201T141500 20211201T144500 003000

CI/CD With Zuul and Kubernetes

This talk will cover the basics of Zuul, running Zuul on Kubernetes, the CI build workflow used by meta-phosh, and on-target testing done to ensure the layer remains functional. PUBLIC CONFIRMED Talk https://pretalx.com/yocto-project-summit-2021-11/talk/NP9AGQ/ Room A Joshua Watt PUBLISH XXQYLT@@pretalx.com -XXQYLT Jami in yocto and on i.MX6 en en 20211201T145000 20211201T150500 001500

Jami in yocto and on i.MX6

Jami is a communication tool developed by Savoir-faire Linux. It is a free and open source audio, video and text peer-to-peer communication platform. Our work was to include Jami in Yocto Project to be able to use it on every platform supported by this generator of custom Linux distributions. Firstly, we tested it on an X86 architecture. But to prove that Jami could run on an embedded board, we tested it on an i.MX6. PUBLIC CONFIRMED Lightning Talk https://pretalx.com/yocto-project-summit-2021-11/talk/XXQYLT/ Room A L'hôpital kévin PUBLISH NMA9H9@@pretalx.com -NMA9H9 Yocto Project lore: New mailing list tools en en 20211201T155000 20211201T160500 001500

Yocto Project lore: New mailing list tools

Recently the Yocto Project & OpenEmbedded mailing lists have been added to the lore.kernel.org public-inbox server. This allows us to make use of new tools developed within the Linux kernel community to simplify the process of reviewing, testing and accepting patches submitted via mailing lists. This talk is presented in the hope that these tools can become more widely used within the Yocto Project community now that they are available, hopefully making life easier for maintainers! PUBLIC CONFIRMED Lightning Talk https://pretalx.com/yocto-project-summit-2021-11/talk/NMA9H9/ Room A Paul Barker PUBLISH WER8YA@@pretalx.com -WER8YA why and how to use clang compiler with Yocto Project en en 20211201T161000 20211201T164000 003000

why and how to use clang compiler with Yocto Project

Clang is compiler is a C/C++ compiler based on LLVM, this is becoming a commonly used compiler with time as it offers modern compiler infrastructure which is extensible beyond a traditional C/C++ static compiler. It provides additional tools e.g. linters, static analyzer based on clang common infrastructure ( libclang ), the talk will cover what it provides beyond a C/C++ static compiler. There is a method to use it as default compiler in yocto project which will be covered as well. it will also cover the case of mixed mode where both GCC and Clang could be in play for specific applications e.g. chromium or webkit using clang while rest of system uses gcc. There is also debugger port called LLDB which is an alternative de bugger, LLD is fast linker which could be used either as default linker or using -fuse-ld option on certain applications. It will discuss advantages of doing so. A take away from this talk would be to know how and when to use clang compiler in yocto project to get maximum benefits. PUBLIC CONFIRMED Talk https://pretalx.com/yocto-project-summit-2021-11/talk/WER8YA/ Room A Khem Raj PUBLISH 7JYTFR@@pretalx.com -7JYTFR Phosh: A GNOME based Wayland shell and compositor en en 20211201T164500 20211201T171500 003000

Phosh: A GNOME based Wayland shell and compositor

Phosh (PHOne SHell) is a shell and phoc (PHOne Compositor) is a compositor for Wayland. Unlike many other compositors, it is based on GNOME and gtk+3 without any other requirements (such as Qt). Phosh was developed by Purism and is now part of GNOME World and under active development in the GNOME community. Phosh and phoc implement the standard GNOME desktop interfaces, meaning it is capable of running gtk+3 and GNOME applications without modification. This makes it a good candidate for replacing matchbox and sato (core-image-sato). Because phosh was designed for mobile phone use, there are some implementation details that will need to be overcome before it can be considered a full-fledged replacement for sato and matchbox. Examples of these current issues are the default lock screen (where the PIN is numeric only) and default portrait alignment of the display. PUBLIC CONFIRMED Talk https://pretalx.com/yocto-project-summit-2021-11/talk/7JYTFR/ Room A Tim Orling PUBLISH ALSXDF@@pretalx.com -ALSXDF deploying a K3S cluster with meta-virtualization en en 20211201T173000 20211201T180000 003000

deploying a K3S cluster with meta-virtualization

This talk is between a tutorial and presentation. While it won't be fully hands on, enough detail will be provided for attendees to reproduce the configuration and builds in their own environment. It is intended to provide a tangle example of how Yocto can be used to build and deploy to a modern container stack. It will be suitable for both a beginner and advanced user, as well as managers/developers. No in depth knowledge of container fundamentals will be required to understand the presentation. PUBLIC CONFIRMED Talk https://pretalx.com/yocto-project-summit-2021-11/talk/ALSXDF/ Room A Bruce Ashfield PUBLISH CNF8NH@@pretalx.com -CNF8NH Yocto Project Summit Social Hour en en 20211201T181500 20211201T201500 020000

Yocto Project Summit Social Hour

Since we're not in person, and won't be able to have an in-person social, this is a chance to visit together after the summit. Everyone can grab the mic and talk, ask questions, share their own project, or show off their drink. Cool zoom backgrounds are encouraged. No formal talk. Just people hanging out and talking about whatever they want! This session will *not* be recorded! PUBLIC CONFIRMED Hand-on class https://pretalx.com/yocto-project-summit-2021-11/talk/CNF8NH/ Room A PUBLISH AZEH97@@pretalx.com -AZEH97 Welcome to Yocto Project Summit 2021.11 (talks) en en 20211202T120000 20211202T121500 001500

Welcome to Yocto Project Summit 2021.11 (talks)

Welcome talk to introduce the Summit to all the attendees. Training track attendees should come first to this talk before heading over to the training room for the first session there. Presentation track attendees can just stay in this track for the rest of the day! PUBLIC CONFIRMED Talk https://pretalx.com/yocto-project-summit-2021-11/talk/AZEH97/ Room A Trevor Woerner PUBLISH SPLD9P@@pretalx.com -SPLD9P Getting started with meta-selinux - enhancing system security on QEMU en en 20211202T122000 20211202T125000 003000

Getting started with meta-selinux - enhancing system security on QEMU

The theoretical part of the presentation will consist of a description of SELinux, types of SELinux policies, the ability to add own rules and the content of the discussed layer. As part of the verification, core-image-selinux running on QEMU will be presented. The presentation will contain step-by-step instructions that will allow to run the basic image, choose other policies, add own personalized access rules and introduce additional improvements. The main focus of this lecture will be a kind of getting started presentation to facilitate the use of meta-selinux. PUBLIC CONFIRMED Talk https://pretalx.com/yocto-project-summit-2021-11/talk/SPLD9P/ Room A Tomasz Żyjewski PUBLISH WZCMAJ@@pretalx.com -WZCMAJ Having a Yocto in your browser en en 20211202T125500 005000

Having a Yocto in your browser

Unless the demo gods fail me, I will show: - using the ESDK in a browser tab - a docker container geared towards YP development in the "cloud" - the CI/CD workflow I used in order to make it work. PUBLIC CONFIRMED Talk https://pretalx.com/yocto-project-summit-2021-11/talk/WZCMAJ/ Room A Josef Holzmayr PUBLISH BWMMPM@@pretalx.com -BWMMPM A brief history of OpenEmbedded and the Yocto Project en en 20211202T141500 20211202T144500 003000

A brief history of OpenEmbedded and the Yocto Project

This talk covers the history of OpenEmbedded and how the Yocto Project came to be. Working from a project timeline, this talk will describe the origins of OpenEmbedded and the path from Linux on handheld Linux devices to Mars. Along the way, OpenEmbedded became the foundation of the first Linux Foundation collaborative project. PUBLIC CONFIRMED Talk https://pretalx.com/yocto-project-summit-2021-11/talk/BWMMPM/ Room A Philip Balister PUBLISH P3XJSN@@pretalx.com -P3XJSN meta-flatpak: Flatpak in Yocto, Yocto in Flatpak en en 20211202T145000 20211202T150500 001500

meta-flatpak: Flatpak in Yocto, Yocto in Flatpak

meta-flatpak provides a flatpak package which you can install in your images. With this your image can run any of the 100s of Linux apps available on Flathub. That’s the easy part. With meta-flatpak you can also turn your existing image into a Flatpak runtime, which could be the starting point for a whole ecosystem of apps specific to your device. This talk with give a brief overview of these concepts, along with an update of the status of the meta-flatpak layer. PUBLIC CONFIRMED Lightning Talk https://pretalx.com/yocto-project-summit-2021-11/talk/P3XJSN/ Room A Sam Thursfield PUBLISH TJCMYC@@pretalx.com -TJCMYC Conversations in Yocto en en 20211202T155000 20211202T160500 001500

Conversations in Yocto

A description would ruin the fun. Not this time, friends! :) PUBLIC CONFIRMED Lightning Talk https://pretalx.com/yocto-project-summit-2021-11/talk/TJCMYC/ Room A Josef Holzmayr PUBLISH BYPJJG@@pretalx.com -BYPJJG Using Yocto to Secure Your Device: From Development to Production en en 20211202T161000 20211202T164000 003000

Using Yocto to Secure Your Device: From Development to Production

In the early development stage, we will explore threat modelling to establish what types of attacks and/or vulnerabilities are of concern to Yocto's software supply chain. We will look at methods for generating reproducible and off-line builds to ensure that we can always build the same image, regardless of network connectivity or changes upstream. In the pre-production stage, we will evaluate integration strategies for Yocto to handle image signing, key management infrastructure, and deployment. Attendees will be able to use this example process as a springboard to customize their own security solutions for their specific systems. PUBLIC CONFIRMED Talk https://pretalx.com/yocto-project-summit-2021-11/talk/BYPJJG/ Room A Kevin Chau PUBLISH ATMMV9@@pretalx.com -ATMMV9 Using linux-yocto + yocto kernel tools to create and maintain a BSP en en 20211202T164500 20211202T171500 003000

Using linux-yocto + yocto kernel tools to create and maintain a BSP

This presentation will provide detailed steps on how to use the existing infrastructure and tooling to develop new BSPs and share/leverage knowledge of other developers. It will also provide information about why this is desirable, rather than relying solely on in-tree/demo defconfigs. It will be suitable for the beginner user and integrator. Experienced kernel developers with their own workflows may also be interested. PUBLIC CONFIRMED Talk https://pretalx.com/yocto-project-summit-2021-11/talk/ATMMV9/ Room A Bruce Ashfield PUBLISH PZVTZY@@pretalx.com -PZVTZY Remote access to IoT devices: Common needs and approaches en en 20211202T173000 20211202T180000 003000

Remote access to IoT devices: Common needs and approaches

This presentation will help the embedded Linux development community see why Remote access may be useful in their products, so it could be integrated before devices are released to the field. It will also save time by helping guide which specific features and tools can be used to achieve their needs. PUBLIC CONFIRMED Talk https://pretalx.com/yocto-project-summit-2021-11/talk/PZVTZY/ Room A Alan Martinovic