Argonne National Laboratory

Experimental Physics and
Industrial Control System

2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  <2017 Index 2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  <2017
<== Date ==> <== Thread ==>

Subject: Re: EPICS 7.0.1-pre1 -- vxWorks 6.2
From: Dirk Zimoch <dirk.zimoch@psi.ch>
To: Mark Rivers <rivers@cars.uchicago.edu>, "core-talk@aps.anl.gov" <core-talk@aps.anl.gov>
Date: Thu, 30 Nov 2017 09:44:47 +0100


On 29.11.2017 22:13, Mark Rivers wrote:
On 29.11.2017 01:05, Andrew Johnson wrote:
Hi Timo,

On 11/28/2017 10:46 AM, Timo Korhonen wrote:
Referring to Dirk's request earlier in this chain:

So it would be nice to have an option in one of the CONFIG files to
declare that a specific architecture should build EPICS 7 without PVA
support.


If I understand the intention right, he would like to be able to build the
EPICS 7 base for many architectures but so that not all of them are
required to support PVA.

I think that is a legitimate request: this way he can keep up with the
other updates in the base and does not have to abandon (at least
immediately) those architectures that are not able to support PVA.

I think this could make the adoption of EPICS 7 easier not only for Dirk
but for other sites, too. The change does not look impossible to me.

I agree that this is worthwhile goal, but I'm not sure how easy it will
be to implement at this stage. The complication is that GNUmake descends
through the tree just once, and it's not until it gets to the bottom
Makefiles that it decides which target architectures to compile the code
for. I don't want to have to edit every Makefile and put a conditional
test in them, but I might be able to do something in the modules' own
configure/CONFIG files.

I can't promise anything for the -rc1, but I will try to implement
something for the final release if I can do so cleanly.

- Andrew


I will try to implement something. My first attempt failed for the
reason Andrew outlined. It is not possible to simply skip the all PVA
modules for a specific T_A because at that time T_A is not yet defined.
A flag needs to be checked inside every module.

Dirk

This is a pain.  I have had to do it in ADSupport for all of the libraries (TIFF, JPEG,  GraphicsMagick, HDF5, etc.).  In GraphicsMagick alone there were 13 Makefiles where I added lines like this:

ifeq ($(WITH_GRAPHICSMAGICK),YES)
  ifeq ($(GRAPHICSMAGICK_EXTERNAL),NO)

    LIBRARY = wmf

...

It would have been very nice to put that logic in a single Makefile above GraphicsMagickSrc, but it does not seem to be possible with gnumake.

Mark



WITH_GRAPHICSMAGICK_linux-x86 = YES
WITH_GRAPHICSMAGICK_vxWorks-ppc604 = NO

WITH_GRAPHICSMAGICK = $(WITH_GRAPHICSMAGICK_$(T_A))

LIBRARY_WITH_GRAPHICSMAGICK_YES = wmf

LIBRARY += $(LIBRARY_WITH_GRAPHICSMAGICK_$(WITH_GRAPHICSMAGICK))



References:
EPICS 7.0.1-pre1 Andrew Johnson
Re: EPICS 7.0.1-pre1 Dirk Zimoch
Re: EPICS 7.0.1-pre1 -- vxWorks 6.2 Dirk Zimoch
Re: EPICS 7.0.1-pre1 -- vxWorks 6.2 Dirk Zimoch
Re: EPICS 7.0.1-pre1 -- vxWorks 6.2 Hartman, Steven M.
Re: EPICS 7.0.1-pre1 -- vxWorks 6.2 Timo Korhonen
Re: EPICS 7.0.1-pre1 -- vxWorks 6.2 Andrew Johnson
Re: EPICS 7.0.1-pre1 -- vxWorks 6.2 Dirk Zimoch
RE: EPICS 7.0.1-pre1 -- vxWorks 6.2 Mark Rivers

Navigate by Date:
Prev: Re: EPICS 7.0.1-pre1 -- vxWorks 6.2 Dirk Zimoch
Next: Re: EPICS 7 vxWorks diff Dirk Zimoch
Index: 2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  <2017
Navigate by Thread:
Prev: Re: EPICS 7.0.1-pre1 -- vxWorks 6.2 Michael Davidsaver
Next: Re: EPICS 7.0.1-pre1 -- vxWorks 6.2 Timo Korhonen
Index: 2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  <2017
ANJ, 30 Nov 2017 Valid HTML 4.01! · Home · News · About · Base · Modules · Extensions · Distributions · Download ·
· EPICS V4 · IRMIS · Talk · Bugs · Documents · Links · Licensing ·