[yocto] Explicitly Adding Common Packages (ie Java) and Creating Users

[Zhang, Jessica]

Hi Andy,

Please see my comments below regarding RSE...

Thanks,
Jessica

-----Original Message-----
From: Paul Eggleton [mailto:paul.eggleton at linux.intel.com]
Sent: Wednesday, March 28, 2012 3:33 AM
To: Andy Gikling
Cc: Zhang, Jessica; Kamble, Nitin A; yocto at yoctoproject.org
Subject: Re: [yocto] Explicitly Adding Common Packages (ie Java) and Creating Users

Hi Andy,

On Sunday 25 March 2012 21:05:02 Andy Gikling wrote:
> I'd like to ask two specific questions:
>
> Question 1:
> The ADT manual instructs you to install the Target Management (RSE)
> framework into Eclipse.  Presumably, one would want to use these tools
> to do remote debugging on their Yocto target.  Unfortunately, the
> primary vehicle to doing streamlined remote debugging with Target
> Management is to run the rseserver and this requires java.  Many of
> Yocto's base images don't come with java support (for example
> core-image-minimal).  So I set out to figure out how to add this into my project.  Makes sense right?
>
> I was never able build an image that contains the meta-oracle-master
> layer using the config files only.  (The documentation on how to do
> this is sparse.  Even the readme file in the layer's download is a
> one-liner on how to use it... why?)  I was able to get an image to build using hob though.
> When I boot the image I have two new folders now; "/usr/java/" and
> "/usr/jdk1.7.0_02/" both of which contain a "/bin" folder with "java"
> in it.
>
> The problem is I can't seem to execute any of them what-so-ever.  I
> just need to be able to call "java -version" and I just can't get er'
> to go no matter what I do!
>
> I've tried adding various locations to my $PATH and I've also tried
> navigating to the folder directly and calling "./java" to no avail.
> What folder should I expect my java executable to be in?  Why can't I use it?
> The jdk is clearly there - I must be missing something very obvious.
>
> There really should be some documentation on this because Java is so
> common as it's a requirement for the tools suggested in the ADT manual.
> Documentation on this topic would fit really well with other common
> first-timer question of "How do I explicitly add a package to my Yocto
> image, such as OpenSSH, GDB, or Java?"

[JZ]

For using RSE, you don't need java for the target image, but you do need to add tcf-agent which facilitate the remote communication underline RSE, on the host side, the tcf plugin will communicate with the remote tcf-agent for all the related remote interactions.  We have a tcf_agent recipe file which you can use to add it to the image.