Analyzing dependencies

Analyzing dependencies

[Gary Thomas]

If I generate the dependency files (-g => *.dot files) for
my target recipe, is there a way to view/analyze them "off line"
much the same way as using "bitbake -u depexp"?

-- 
------------------------------------------------------------
Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
------------------------------------------------------------

Re: Analyzing dependencies

[Khem Raj]

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Use any program that reads dotty files
On Apr 12, 2016 11:05 PM, "Gary Thomas" <gary@mlbassoc.com> wrote:

> If I generate the dependency files (-g => *.dot files) for
> my target recipe, is there a way to view/analyze them "off line"
> much the same way as using "bitbake -u depexp"?
>
> --
> ------------------------------------------------------------
> Gary Thomas                 |  Consulting for the
> MLB Associates              |    Embedded world
> ------------------------------------------------------------
> --
> _______________________________________________
> bitbake-devel mailing list
> bitbake-devel@lists.openembedded.org
> http://lists.openembedded.org/mailman/listinfo/bitbake-devel
>

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Re: Analyzing dependencies

[Robert Yang]

On 04/13/2016 02:08 PM, Khem Raj wrote:
> Use any program that reads dotty files

Such as dot from graphviz.

// Robert

>
> On Apr 12, 2016 11:05 PM, "Gary Thomas" <gary@mlbassoc.com
> <mailto:gary@mlbassoc.com>> wrote:
>
>     If I generate the dependency files (-g => *.dot files) for
>     my target recipe, is there a way to view/analyze them "off line"
>     much the same way as using "bitbake -u depexp"?
>
>     --
>     ------------------------------------------------------------
>     Gary Thomas                 |  Consulting for the
>     MLB Associates              |    Embedded world
>     ------------------------------------------------------------
>     --
>     _______________________________________________
>     bitbake-devel mailing list
>     bitbake-devel@lists.openembedded.org
>     <mailto:bitbake-devel@lists.openembedded.org>
>     http://lists.openembedded.org/mailman/listinfo/bitbake-devel
>
>
>

Re: Analyzing dependencies

[Gary Thomas]

On 2016-04-13 08:08, Khem Raj wrote:
> Use any program that reads dotty files
>

Know of any interactive ones that let you explore like the 'depexp'?

> On Apr 12, 2016 11:05 PM, "Gary Thomas" <gary@mlbassoc.com <mailto:gary@mlbassoc.com>> wrote:
>
>     If I generate the dependency files (-g => *.dot files) for
>     my target recipe, is there a way to view/analyze them "off line"
>     much the same way as using "bitbake -u depexp"?

-- 
------------------------------------------------------------
Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
------------------------------------------------------------

Re: Analyzing dependencies

[Paul Eggleton]

On Wed, 13 Apr 2016 08:20:38 Gary Thomas wrote:
> On 2016-04-13 08:08, Khem Raj wrote:
> > Use any program that reads dotty files
> 
> Know of any interactive ones that let you explore like the 'depexp'?

It's not quite like that but FYI I have found "xdot" useful for viewing dot 
files - it performs well with reasonably large graphs (though still struggles 
with the bitbake -g task graph unfortunately).

  https://github.com/jrfonseca/xdot.py

Cheers,
Paul

-- 

Paul Eggleton
Intel Open Source Technology Centre

Re: Analyzing dependencies

[Peter Kjellerstedt]

> -----Original Message-----
> From: bitbake-devel-bounces@lists.openembedded.org [mailto:bitbake-
> devel-bounces@lists.openembedded.org] On Behalf Of Paul Eggleton
> Sent: den 14 juli 2016 00:44
> To: bitbake-devel@lists.openembedded.org
> Cc: Gary Thomas
> Subject: Re: [bitbake-devel] Analyzing dependencies
> 
> On Wed, 13 Apr 2016 08:20:38 Gary Thomas wrote:
> > On 2016-04-13 08:08, Khem Raj wrote:
> > > Use any program that reads dotty files
> >
> > Know of any interactive ones that let you explore like the 'depexp'?
> 
> It's not quite like that but FYI I have found "xdot" useful for viewing
> dot files - it performs well with reasonably large graphs (though still
> struggles with the bitbake -g task graph unfortunately).
> 
>   https://github.com/jrfonseca/xdot.py
> 
> Cheers,
> Paul
> 
> --
> 
> Paul Eggleton
> Intel Open Source Technology Centre

To make it possible to view the BitBake graphs in a sane way, I recommend 
to use gvpr and tred (from graphviz) to filter them.

Here is an example filter for gvpr that I have used to filter out native 
recipes. It also changes the labels for each node to only be the recipe 
name. To use it, first run "bitbake -g <recipe>" for the recipe you are 
interested in, e.g., core-image-minimal. Then run 
"gvpr -i -f filter_non-native.txt pn-depends.dot | tred | xdot.py&".

---- 8< -------- filter_non-native.txt ---------------------------------
N[match(label, "/meta") != -1 &&
  match(label, "virtual:native:") == -1 &&
  match(name, "-native") == -1]

N {
	label = gsub(label, ' *');
}
---- >8 -------- filter_non-native.txt ---------------------------------

//Peter