Hi Gilbert,
If you want to round out the modules to allow you to page protect them
perhaps something like this instead of the special link edit procedure.
*
LTORG ,
*
* round this module to a page boundary for page protect
DC ((*+4095-DRIVER)/4096*4096-(*-DRIVER))X'00'
DRIVERL EQU *-DRIVER
Best Regards,
Sam Knutson, GEICO
Performance and Availability Management
mailto:[EMAIL PROTECTED]
(office) 301.986.3574
"Think big, act bold, start simple, grow fast..."
-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On
Behalf Of Gilbert Saint-Flour
Sent: Monday, October 23, 2006 10:17 AM
To: [email protected]
Subject: Re: Is the teaching of non-reentrant HLASM coding practices
ever defensible?
Edward Jaffe wrote:
> However, this post serves to further underscore the validity of my
> suggestion re: the REFR attribute. It is an old option that is not
> currently being exploited by the operating system. It could be "added"
> in an upward compatible way. (See Jim Mulder's post in this thread.)
> I'm sure there are a few existing programs, erroneously marked REFR,
> that deliberately modify themselves. Those programs will need to be
relinked.
> For everything else, it's business as usual. ...
You have my support: I also suggest that REFR be used to mean "loaded in
SP=252" under the control of a system-wide option.
I currently have to link-edit some of my REFR programs with a special
utility which rounds up the length of the load-modules to a multiple of
4K because these programs issue PGSER PROTECT to set themselves
read-only in order to prevent accidental overlays. If these REFR
programs were loaded into SP=252, I wouldn't have to issue PGSER PROTECT
or use a special link-edit procedure.
--
Gilbert Saint-Flour
GSF Software
4425 Monserrate St
Coral Gables, Florida 33146 USA
1-305-665-9084
http://gsf-soft.com/
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