Re: V3R6 & V3R7 & ILE C

["Jeffrey M. Silberberg" <silbrbrg@xxxxxxxxxx>]

On Fri, 30 Jan 1998 Ed.Doxtator@ssa.co.uk wrote:

> Hi Kids
> 
> I'm getting close to the end of my tether with the following problem:
> 
> 1.  I have ILE C code I've compiled under V3R6.  It executes without error
> under V3R6.

        Okay So Far !!

> 2.  I ship this code to another AS/400, this one running V3R7.  (The TGTRLS
> parameter is V3R1M0.)

        NO !!  Leave the Target as V3R6, then save and restore it to the V3R7
 system.  You want the RISC code not the CISC code anyway.

> 3.  I execute this code and it blows up under V3R7.  I get an MCH3601,
> Pointer not set for location referenced.

        Yes, I have seen this as well, see #2 above..

> 4.  I re-compile the ILE C code on the V3R6 box, this time using
> DBGVIEW(*ALL) so's I can debug it.

        Target Release ??? 

> 5.  Ship the code over to the V3R7 AS/400.  Restore the code, no problem.

> 6.  Set the debugger up.

> 7.  Run the program and... it doesn't blow up!  The MCH3601 mysteriously
> disappears.

        I will bet #4 is target release V3R6 (RISC)...

> 
> After spending a fair amount of time instrumenting the production version
> of the code, it appears that a subfield within an array of structures
> mysteriously goes NULL.  Where and why I cannot determine.

        Not sure I understand this issue, But it would sound like a 
        pointer gets lost.  Is it Gobal or Local variable. 

> 
> Has anyone experienced this problem at all under V3R7?
>
        Call me Monday @ (770) 399-9464 and I will try and help !!

 
> Thanks.  I'm gonna go buy me some rope and a nice sturdy tree.  Wait!  It's
> Friday!  I'll just go have a beer instead.
> 
> Look after yerselves...
> 
> -Doc

        Jeff Silberberg 
> 
> 
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