False positives for reassembly are generally harmless. -- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 עַם יִשְׂרָאֵל חַי נֵ֣צַח יִשְׂרָאֵ֔ל לֹ֥א יְשַׁקֵּ֖ר
________________________________________ From: IBM Mainframe Discussion List on behalf of Radoslaw Skorupka Sent: Monday, April 21, 2025 8:03 AM To: [email protected] Subject: Re: Exits reassembly External Message: Use Caution I can be wrong, but I think it is not exactly true. Yes, USERMOD is good thing, no doubt. However I think the usermod flags your exit whenever any of the components are being modified - but modification need not mean reassembly requirement. In other words, some false positives are possible. Of course, as I said, reassembly is quite simple, simpler than analysis. -- Radoslaw Skorupka Lodz, Poland W dniu 21.04.2025 o 13:02, Lennie Bradshaw pisze: > When I was doing systems programming work of this type, we always installed > the exits using USERMOD statements in SMPE. Then if any exit needed > re-assembly it would be done automatically by SMPE. > It takes a little work to understand the process, but it pays off in the > longer run. > > Lennie > > -----Original Message----- > From: IBM Mainframe Discussion List<[email protected]> On Behalf Of > Radoslaw Skorupka > Sent: 21 April 2025 10:37 > To:[email protected] > Subject: Re: Exits reassembly > > W dniu 21.04.2025 o 10:14, Peter pisze: >> Hello >> >> Apology for the dummy question >> >> How do we know if a particular exit needs a reassembly before >> migrating to a newer zos version? >> >> I have seen some exits work by just copying over without reassembly. >> >> Any thoughts or advise based on your experience > It's not dummy question. > However there is no requirement to *always* reassembly an exit when migrating > to newer z/OS version. > However: > 1. Why do we reassemble? Because exit uses macros and structures which are > likely (but not always) may change. > 2. Instead of detailed analysis which it is simply easier to reassemble. > 3. It is not only system upgrade. It can be some PTF as well, which causes > the need to reassemble. IMHO much less likely. > 4. There are exits for some applications, in that case the need for > reassemble would be different. It can be because system change or product > change. Or both. > > My €0.02 > > -- > Radoslaw Skorupka > Lodz, Poland ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
