[yocto] What source is included in sstate hash, how to change?

Paul Eggleton paul.eggleton at linux.intel.com
Mon Nov 28 13:34:40 PST 2016

Hi Martin,

On Mon, 28 Nov 2016 16:16:30 Vuille, Martin wrote:
> > -----Original Message-----
> > From: Burton, Ross [mailto:ross.burton at intel.com]
> > 
> > On 28 November 2016 at 15:02, Vuille, Martin (Martin)
> > <vmartin at avaya.com> wrote:
> > Or am I completely off-track?
> > 
> > It will track the md5 of files mentioned in SRC_URI, but if a file is
> > generated dynamically then bitbake may not be aware of it.
> > 
> > Can you share a minimal example?
> Unfortunately, that would be difficult.
> But the SRC_URI does cover ${S}/.., so my assumption must be incorrect.

If what you mean is you want to change the source in the work directory and 
have the recipe rebuild - I would strongly advise using the externalsrc class 
instead, since it's designed to enable that situation and avoid losing your 
changes - since the source unpacked by the build system does get removed under 
certain circumstances and you don't want your changes to go with it.

Alternatively, if your configuration is temporary while you are making changes 
to the source (or can be) then it would be worth checking out "devtool modify" 
since that helps you build a workflow around making those changes.



Paul Eggleton
Intel Open Source Technology Centre

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