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Tables of Contents

Table of Contents

Yocto Build

Host Machine Setup

Hardware requirements:

  • Ubuntu 18.04 desktop machine
  • RAM - 8 GB or more
  • Memory - a minimum of 100 GB free space

Refer to the link for host machine setup: Host Setup

Yocto workspace setup

Code Block
languagebash
themeRDark
titlebuild setup
repo init -u https://code.rdkcentral.com/r/manifests -b dunfell -m rdkv-nosrcextsrc.xml
repo sync -j `nproc` --no-clone-bundle --no-tags

...

Code Block
languagebash
titleapply bug fixes
collapsetrue
# fix to use eSDK with pinned fromrevision allof supportedRDK imagescomponents
(cd meta-rdk; git fetch "https://code.rdkcentral.com/r/components/generic/rdk-oe/meta-rdk" refs/changes/3758/5103753258/1 && git cherry-pickcheckout FETCH_HEAD)

Note: The above bug fixes changes are temporary given as instructions. This is not required once the change is get merged into the appropriate layer.

Populate eSDK

Deck of Cards
idframe


Card
defaulttrue
labelMedia Client
titleCommand to populate eSDK from mediaclient image


Code Block
languagebash
themeRDark
titleimage build
MACHINE=raspberrypi-rdk-mc source meta-cmf-raspberrypi/setup-environment
bitbake rdk-generic-mediaclient-wpe-image -c populate_sdk_ext



Card
labelHybrid Gateway
titleCommand to populate eSDK from hybrid image


Code Block
languagebash
themeRDark
titleimage build
MACHINE=raspberrypi-rdk-hybrid source meta-cmf-raspberrypi/setup-environment
bitbake rdk-generic-hybrid-wpe-image -c populate_sdk_ext


The generated eSDK installer resides under the directory build-<MACHINE>/tmp/deploy/sdk/rdk-glibc-x86_64-arm-toolchain-ext-2.0.sh of the Yocto workspace.

Note: The generated eSDK installer script usually occupies 2 to 2.5 GB

eSDK Installation

The installer can be done on any x86_64 Linux machines.

Host Configuration

Refer to the RDKCentral's credential configuration to setup RDK Central's credentials in the machine where eSDK to be installed. This is to access repositories by the RDK Yocto recipes that reside in the eSDK installer.

Installation

Code Block
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# run the installer script file
# installer asks for a directory to install (default directory ~/rdk_sdk)
# installer asks permission to proceed
./rdk-glibc-x86_64-arm-toolchain-ext-2.0.sh

...

xxxuser@yyy-machine-003:~/rpi/hyb/1712$ build-rpi-hyb/tmp/deploy/sdk/rdk-glibc-x86_64-arm-toolchain-ext-2.0.sh
RDK (A Yocto Project based Distro) Extensible SDK installer version 2.0
=======================================================================
Enter target directory for SDK (default: ~/rdk_sdk):
You are about to install the SDK to "/home/xxxuser/rdk_sdk". Proceed [Y/n]? Y
Extracting SDK................................................................................................................done
Setting it up...
Extracting buildtools...
Preparing build system...

Parsing recipes: 100% |##################################################################| Time: 0:00:52

Initialising tasks: 100% |###############################################################| Time: 0:00:00

Checking sstate mirror object availability: 100% |#######################################| Time: 0:00:00

Loading cache: 100% |####################################################################| Time: 0:00:00

Initialising tasks: 100% |###############################################################| Time: 0:00:00

done

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/xxxuser/rdk_sdk/environment-setup-cortexa7t2hf-neon-vfpv4-rdk-linux-gnueabi

SDK Installation Done.

Build from eSDK

This section covers how to use the eSDK for component build and image build

Environment Setup

The installer can be run on any x86_64 Linux based machines.

Code Block
languagebash
themeRDark
# change directory to the installed path
cd ~/rdk_sdk
# setup the eSDK environemnt
source environment-setup-cortexa7t2hf-neon-vfpv4-rdk-linux-gnueabi

New Components

Add Component

Code Block
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# way 1
# add a new recipe with URL
devtool add <recipe_name> <source URL>
# eg. devtool add westeros https://github.com/rdkcmf/westeros

# way 2
# add a new recipe with external source directory
devtool add <recipe_name> <absolute path>
# eg. devtool add westeros /path/for/source/directory

Modify Component

Code Block
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# modify existing recipe's URL or srctree or to add patches
devtool modify <recipe_name> <new URL>
# eg. devtool modify westeros https://code.rdkcentral.com/r/rdk/components/generic/westeros

Edit Component's recipe

Code Block
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# modify recipe from an editor
devtool edit-recipe <recipe_name>
# eg. devtool edit-recipe westeros

Upgrade Component

Code Block
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# modify existing recipe's URL or srctree or to add patches
devtool upgrade --version <version number> <recipe_name>
# eg. devtool upgrade --version 1.0.21 westeros

Build Components

Code Block
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# Pre-requisite: add a new recipe using devtool
devtool build <recipe_name>
# eg. devtool build westeros

Deploy binaries

Code Block
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# Pre-requisite: add a new recipe using devtool
devtool deploy-target <recipe_name> <target_path>
# eg. devtool deploy-target westeros root@192.168.xx.xx

Build Image

A complete RDK image can be generated from the eSDK installer.

...