Re: puzzle running softIocPVA

["Johnson, Andrew N. via Tech-talk" <tech-talk at aps.anl.gov>]

Actually forget that, the filename we pass in has an absolute path so I don’t think it will ever use that search path. We should probably make use of the dbPath() feature of dbStaticLib to improve the flexibility so it does search more than one directory by default. Maybe we should set a default path of

    ../../dbd:.:$ORIGIN/../../dbd

for -D (dbd) files (maybe add $(FINAL_LOCATION) too) and a similar set for -d (db) files. The help text would have to change too, and should show both DBD and DB search paths.

- Andrew

On Dec 20, 2020, at 11:41 PM, Johnson, Andrew N. via Tech-talk <tech-talk at aps.anl.gov> wrote:

Another possibility I’ve just thought of would be to try setting the environment variable EPICS_DB_INCLUDE_PATH which if set is added to the list of directories searched by the dbStatic parser. If you put “.” in that before starting the IOC it ought to search for the .dbd file in the CWD.

- Andrew

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Complicity is easy, Simplexity takes real work

On Dec 20, 2020, at 1:35 PM, Rolf Keitel <rolf at triumf.ca> wrote:



Thanks Michael,

I had tried the -D option as I saw it when I did   softIocPVA -h. 
It worked if I start the softIocPVA from the command line, but it did not work in the #!  line of st.cmd.

I did not know that it works without the white space, but just tried and it does. One always learns.

I was foreseeing problems for the IOC boot configuration system at TRIUMF as our system is based on each IOC having a boot directory, which contains all the files for the current configuration, including the IOC image and dbd file(s), so that no special tools are necessary for reverting back to a previous configuration.

As long as the -D option works in st.cmd (with or without white space) we will be ok.

- rolf -

On 2020-12-20 11:26 a.m., Michael Davidsaver wrote:

On 12/20/20 11:12 AM, Johnson, Andrew N. wrote:

IIRC the original softIoc had an option to specify the DBD file path on the command line (-D perhaps), and I don’t think Michael removed that so you might be able to get it to work by adding that option, possibly to your st.cmd’s #! line.

'-D' is recognized in 7.0.4.1, I didn't mention this since

#!./softIoc -D softIoc.dbd

won't work.

However, maybe you knew that

#!./softIoc -DsoftIoc.dbd

is recognized?  I hadn't until now.

--
Rolf Keitel, Ph.D.
Researcher Emeritus
TRIUMF, 4004 Wesbrook Mall
Vancouver, BC, V6T 2A3
Office: 604 222 7453
Home: 604 228 0594
e-mail: rolf at triumf.ca

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Complexity comes for free, simplicity you have to work for.