Re: EPICS on ARM (continued)

[Rod Nussbaumer <bomr@triumf.ca>]

Andrew Johnson wrote:
> On Wednesday 27 October 2010 13:31:00 emmanuel_mayssat@lynceantech.com wrote:
> > > In src/catools/Makefile you find:
> > > LIBRARY_HOST += catools
> > > PROD_HOST += caget camonitor cainfo caput
> > > This builds caget etc only for the host, not for the cross targets.
> > > To build the tools for all cross Linux IOCs, you may try to add:
> > > LIBRARY_IOC_Linux += catools
> > > PROD_IOC_Linux += caget camonitor cainfo caput
> >
> > I didn't try the above. But I found I simply needed
> > VALID_BUILDS += Host
> > in my CONFIG_SITE.Common.linux-arm4vtl
> > In linux-arm, we already have
> > VALID_BUILDS = Ioc (which basically means build the libs)
>
> True, although that will also cause all of the host tools to be built and
> installed as well; not really a problem, but it will slow up your builds a
> bit.  Dirk's instructions should also work, but they do result in some benign
> warnings from the build system.
>
> I've made a change for 3.14.12 which will build the catools for all
> architectures except vxWorks and RTEMS.
>
> It would be nice it these tools could be included in an IOC image and register
> themselves with the iocsh (a long time ago there were such CA commands in the
> vxWorks IOC), but that's probably a fair bit of work to do properly — Ralph,
> one for the Codeathon wish-list maybe?
>
> - Andrew

As I reported to Emmanual in a note offline (and credit to Daron Chabot 
for pointing this out), you can build the host-based tools for an 
architecture that is not the build-host by commenting-out the entry in

CONFIG_SITE.Common.linux-arm:

# VALID_BUILDS = Ioc

This seems to work for me. It does exactly what I had hoped, and puts 
everything in base/bin/linux-arm_el. A quick test of caget/caput shows 
that they seem to work on the target host.

Rod Nussbaumer
ISAC Controls, TRIUMF
Vancouver, Canada.