Experimental Physics and
Industrial Control System

Andrew Johnson <[email protected]> · Mon, 23 Apr 2018 15:45:10 -0500

Thanks John,

Now tracked at https://bugs.launchpad.net/epics-base/+bug/1766349

- Andrew

On 04/23/2018 03:38 PM, John Dobbins wrote:
> Andrew,
> 
> 
> In fact on my machine 
> 
> 
>     >echo $ARCH
>     x86_64
> 
> Unsetting it fixed the problem. 
> 
> Thanks for your follow through. 
> 
> John
> 
> 
> 
> 
> ------------------------------------------------------------------------
> *From:* Andrew Johnson <[email protected]>
> *Sent:* Monday, April 23, 2018 4:24 PM
> *To:* John Dobbins
> *Cc:* [email protected]
> *Subject:* Re:
> base-3.15.5/templates/makeBaseApp/top/iocBoot/ioc/Makefile@Common
>  
> Hi John.
> 
> On 04/23/2018 02:30 PM, John Dobbins wrote:
>> I restarted from scratch with 3.15.5 and got same result.
>> Did same with 3.15.4 and got same result.
>> 3.15.3 works. All of this is consistent with the date of the change you
>> indicated.
> 
> Interesting. I just switched to a different account so I shouldn't be
> relying on any personal configurations and created a new makeBaseApp
> example IOC from a different Base-3.15.5 tree, and the result works.
> There's something different about your setup; I'm running RHEL-7.5, but
> I also tried it on RHEl-6.9 with no difference. The difference must be
> due to something in our environments (more below).
> 
>> I did  "make -d"  in iocBoot/iocmyExample  and reproduce the tail here:
>> 
>>     Updating goal targets....
>>     Considering target file `all'.
>>      File `all' does not exist.
>>       Considering target file `install'.
>>        File `install' does not exist.
>>         Considering target file `buildInstall'.
>>          File `buildInstall' does not exist.
>>          Finished prerequisites of target file `buildInstall'.
>>         Must remake target `buildInstall'.
>>         Successfully remade target file `buildInstall'.
>>        Finished prerequisites of target file `install'.
>>       Must remake target `install'.
>>       Successfully remade target file `install'.
>>      Finished prerequisites of target file `all'.
>>     Must remake target `all'.
>>     Successfully remade target file `all'.
>>     make: Nothing to be done for `all'.
>> 
>> The target envPaths is not considered. This used to be considered after
>> buildInstall.
> 
> For comparison, here's my tail from 'make -d':
> 
>> Updating goal targets....
>> Considering target file `all'.
>>  File `all' does not exist.
>>   Considering target file `install'.
>>    File `install' does not exist.
>>     Considering target file `buildInstall'.
>>      File `buildInstall' does not exist.
>>       Considering target file `envPaths'.
>>        File `envPaths' does not exist.
>>         Considering target file `../../configure/RELEASE'.
>>         File `../../configure/RELEASE' was considered already.
>>         Considering target file `../../configure/CONFIG_SITE'.
>>         File `../../configure/CONFIG_SITE' was considered already.
>>        Finished prerequisites of target file `envPaths'.
>>       Must remake target `envPaths'.
>> Invoking recipe from /iocapps2/R3.15.5/base/3-15-5-aes1/configure/RULES.ioc:34 to update target `envPaths'.
>> perl -CSD /iocapps2/R3.15.5/base/3-15-5-aes1/bin/linux-x86_64/convertRelease.pl -t /home/phoebus/EPICS/TEMP/3.15-example envPaths
>> Putting child 0x25652b0 (envPaths) PID 24690 on the chain.
>> Live child 0x25652b0 (envPaths) PID 24690 
>> Reaping winning child 0x25652b0 PID 24690 
>> Removing child 0x25652b0 PID 24690 from chain.
>>       Successfully remade target file `envPaths'.
>>      Finished prerequisites of target file `buildInstall'.
>>     Must remake target `buildInstall'.
>>     Successfully remade target file `buildInstall'.
>>    Finished prerequisites of target file `install'.
>>   Must remake target `install'.
>>   Successfully remade target file `install'.
>>  Finished prerequisites of target file `all'.
>> Must remake target `all'.
>> Successfully remade target file `all'.
> 
> So in my case envPaths is seen as a dependency of buildInstall, but it
> isn't in yours. The appropriate build rules are found in the base-3.15
> configure/RULES.ioc file which was not modified when the ARCH variable
> was removed from those Makefiles, but it looks like it probably should
> have been. This part explains why:
> 
>> ifeq ($(filter $(ARCH),$(BUILD_ARCHS)),$(strip $(ARCH)))
>>     buildInstall$(DIVIDER)$(ARCH) buildInstall: $(TARGETS)
>> 
>>     clean$(DIVIDER)$(ARCH) clean:
>>        $(RM) cdCommands envPaths dllPath.bat relPaths.sh
>> else
>>     buildInstall$(DIVIDER)$(ARCH) buildInstall:
>>     clean$(DIVIDER)$(ARCH) clean:
>> endif
> 
> That if condition assumes that ARCH is set and is one of the words in
> BUILD_ARCHS. If ARCH is unset the if condition is apparently evaluated
> as true, but if your environment has the environment variable ARCH set
> to something that is not a configured EPICS build architecture the else
> branch would be taken and the contents of TARGETS will be ignored.
> 
> I set ARCH in my environment to garbage and got the same results as you.
> 
> Could you try 'echo $ARCH' and see what you get?
> 
> The proper solution might be to set ARCH to $(EPICS_HOST_ARCH) in
> Makefile@Common but I need to think about this a bit to decide what the
> best fix is. There should be other changes to that file if it is to work
> properly with ARCH unset.
> 
> Thanks for helping track this down!
> 
> - Andrew
> 
> -- 
> Arguing for surveillance because you have nothing to hide is no
> different than making the claim, "I don't care about freedom of
> speech because I have nothing to say." -- Edward Snowdon

-- 
Arguing for surveillance because you have nothing to hide is no
different than making the claim, "I don't care about freedom of
speech because I have nothing to say." -- Edward Snowdon

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System