Many shops do not want to go to COBOL V5 due to the PDS/E requirement. So instead IBM has created a function that will allow pre COBOL V5 programs to get similar optimization as in Cobol V5.
You would want to search on the IBM website for ABO - Automatic Binary Optimizer (ABO) optimized COBOL load module You can run your current load modules without converting them to Cobol V5. This will allow a more gradual upgrade to Cobol V5. http://www-03.ibm.com/software/products/en/z-compilers-optimizer And, yes, what they said. IBM requires PDS/E due to Program Objects being created by Cobol V5. There are several SHARE presentations that will provide overviews of this change. Lizette > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:[email protected]] On > Behalf Of [email protected] > Sent: Saturday, January 23, 2016 2:08 PM > To: [email protected] > Subject: COBOL v5 > > We are planning to upgrade to z/OS V2.2 and with it COBOL v5 . > Im being told that programs compiled with COBOL 5 must have there load modules > reside in a PDSE. So we are undertaking a conversion from PDS to PDSE so that > a program compiled with COBOL 5 will link edit into a PDSE. > . > . > I have no objections to this, I just cant get a straight answer as to why is a > PDSE necessary is necessary for COBOL 5 programs. > . > I have not heard of this requirement with Assembler. What About PL/I and C, > are they required to have load modules stored in a PDSE ? > . > . > IBMLInk told me that the Format of a COBOL 5 program is different and as such > requires a PDSE. > . > Is it the COBOL Compiler or the Binder/Linkage Editor that has the > requirement. As Far as I know existing programs compiled with pre COBOL 5 > compilers can execute out of a PDSE. > . > . > So why cant a application programmer continue to use a Complier prior to COBOL > 5 and link edit into the same PDS/E. > . > . > Im Not understanding what/why COBOL 5 needs a PDSE. > . > > Paul > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
