Building a component in OE

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For a core system developer it will be required to rebuild some of the system components for the target device. This page describes all necessary steps.

Setup

Assumptions

  • You have a local copy of the component repo in path/to/<component name> (only required in case we have an own repo and not following upstream directly!)
  • You have a working OE build dir in /srv/webos-ports (To set this up, start here: [1])
  • You have a working knowledge of linux
  • You have the Android SDK Setup

Configuration When it's a component for which we have our own repo: Add the following to the bottom of conf/local.conf

S_pn-<component name> = "path/to/<component name>"

Otherwise you can just update the recipe directly.

Building

Now you can build the component from your OE environment by

$ MACHINE=<machine name> bb -c compile -f <component name>

The output is hidden inside the build tree. Look into the path

tmp-glibc/work/armv7a-vfp-neon-webos-linux-gnueabi/<component name>/<version>/build

or

tmp-glibc/work/<machine name>-webos-linux-gnueabi/<component name>/<version>/build

for the binary you have built and transfer it to the device to the right location. For example use adb

$ adb push tmp-glibc/work/armv7a-vfp-neon-webos-linux-gnueabi/luna-webappmanager/0.2.0-8+gitAUTOINC+5344f19613-r0/build/src/LunaWebAppManager /usr/sbin/