Re: Reading an RPG dump

A dump is always a last resort in my mind, and you do need to know the program reasonably well to work with a dump. I use a dump to discover the values of fields, indicators and addresses etc. at the point of failure.

Can you use debug to step through the program or otherwise set break points?


Regards,
John McKay mba
www.rpglanguage.com
www.mckaysoftware.ie

----- Original Message ----- From: "Pete Helgren" <pete@xxxxxxxxxx>
To: "RPG Midrange Discussion" <rpg400-l@xxxxxxxxxxxx>
Sent: Wednesday, September 29, 2010 5:05 PM
Subject: Reading an RPG dump

Amazingly, in my 20+ years of RPG programming I have never had to dump
an RPG program that was halted with an error. The software I work with
is so familiar to me that IF I get an RPG error, I usually know where to
look to fix it without much research.

However, I have taken an interim consulting gig with a company that runs
BPCS (for reasons other than running their BPCS installation). It is an
old version (at least 10 years old) and I have never had any BPCS
experience so when an error occurred, I had to start from scratch in
figuring out what went wrong.

The statement number in the RPG program doesn't resolve to a valid
statement number in the source referenced by the program (It has been
converted to ILE RPG). So, when the error occurred, I took the option
to dump the RPG program to figure out what went wrong.

The error is: The target for a numeric operation is too small to hold
the result. So I know what the problem is. Unfortunately the program
isn't kind enough to says: The target (MYFIELD) for a numeric operation
is too small to hold the result. So I was hoping to find out what
*field* the program was complaining about.

So (this is NOT a BPCS question): How do I determine from the RPG dump
which field is too small? Since I cannot reconcile the statement number
to the source, I was hoping the dump would illuminate the problem.
After looking at the dump, there is so much information I can't sort out
where to begin looking.

Suggestions?

--
Pete Helgren
Value Added Software, Inc
www.valadd.com
www.opensource4i.com

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