OA47921: IEW2508S 3708 MODULE mmmmmmmm IS NOT A VALID PROGRAM is reported by debug tool for a compressed program object

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• A program executes correctly. However when a debug tool was run
  against it, binder reports
  -
  IEW2508S 3708 MODULE mmmmmmmm IDENTIFIED BY DDNAME EQALIB IS NOT
           A VALID PROGRAM OBJECT. CODE 11
  -
  Running amblist against it ends with
  AMB139I  BINDER INCLUDE FAILED,   12, 83000507
  
  The module save operation summary shows
  COMPRESSION         UNINITIALIZED TEXT, BINDER DATA
  
  The problem was related to incorrect calculation of lengths of
  certain fields for a program that contained un-initialized
  storage and was compressed. This incorrect calculation leads to
  the IEWBXLF eyecatcher being overlaid.
  

Local fix

• Specify COMPRESS=NO to turn off compression.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: Those reprocessing a program object (PO),    *
  *                 when that program object had originally been *
  *                 bound with the binder option COMPRESS=YES or *
  *                 COMPRESS=AUTO.                               *
  ****************************************************************
  * PROBLEM DESCRIPTION: In the case specified above, for some   *
  *                      unusual programs, the binder issues an  *
  *                      error message IEW2508S saying this PO   *
  *                      is not a valid program. In this case    *
  *                      there is no way for the program to be   *
  *                      rebound, it must be rebuilt from the    *
  *                      original modules.                       *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  When users bind POs with the binder option COMPRESS=YES or
  COMPRESS=AUTO, the binder compresses two areas of binder data,
  which are not required for execution. For some unusual programs,
  the first area becomes larger after the compression and overlays
  the second area. Although the generated PO may be executing
  without problems, the binder will report IEW2508S when the PO is
  subsequently processed by the binder, such as by rebinding,
  AMBLIST or using binder regular or fast data access APIs.
  
  COMPRESS=AUTO is the default, meaning that the program will be
  compressed if built at the COMPAT level ZOSV1R7 or higher.
  This may be due to the option COMPAT=ZOSV1R7 or later,
  COMPAT=CURR|CURRENT, or some characteristic of the input modules
  requiring a higher COMPAT level.  (Even in these cases the
  binder might decide that compression is not worthwhile even when
  compress is turned on and so not compress the binder data.)
  To determine if the binder data is compressed requires examining
  the binder SYSPRINT output from the LIST option, which includes
  a SAVE SUMMARY that in part looks like this:
  
   SAVE MODULE ATTRIBUTES:
  
      AC                  000
      AMODE                64
      COMPRESSION         BINDER DATA              <<<
      DC                  NO
      . . .
  

Problem conclusion

• The binder has been updated to perform compression correctly.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

  UA78627 UA78628

Modules/Macros

• IEWBXZIP
  

Fix information

• Fixed component name

  PROGRAM MANAGEM

• Fixed component ID

  5695PMB01

Applicable component levels

• R7A0 PSY UA78627

     UP15/08/26 P F508

• R790 PSY UA78628

     UP15/08/26 P F508

Fix is available

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