PH70378: FOREGROUND COMPILE DOES NOT REMOVE DD ALLOCATIONS AFTER COMPLETING

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• When invoking the XLC compiler in the foreground, the compiler
  is allocating a number of DD data definitions that are not being
  released after completion of the compile.  Examples of
  foreground compiles are using the provided REXX EXECs (https://
  www.ibm.com/docs/en/zos/3.1.0?topic=guide-cataloged-procedures-
  rexx-execs)or invoking the compiler via an assembler macro (http
  m.com/docs/en/zos/3.1.0?topic=guide-calling-zos-xl-cc-compiler-
  from-assembler).
  
  After the compile, checking active DD allocations on the system
  with the ISRDDN utility will show DDnames starting with
  SYST####:
  
  SHR,KEEP   >    SYST0001 CEE.SCEEH.H
  
  SHR,KEEP   >    SYST0002 CEE.SCEEH.SYS.H
  
  SHR,KEEP   >    SYST0003 USERID.MYSYSLIB
  
  These are compiler header file DDs that are not released by the
  compiler.  If a user-allocated SYSLIB DD is used, an additional
  SYST#### DD is allocated by the compiler.
  
  Batch JCL compiles are not affected by this issue because the
  JES system automatically deallocates leftover DDs at the end of
  the job.
  

Local fix

• Manually deallocate the leftover DDs using the ISRDDN utility
  (launched via TSO).
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: Users of IBM z/OS V2.4 XL C/C++ using the    *
  *                 compiler through REXX execs or HLASM         *
  *                 invocation (JCL and USS should clean up      *
  *                 automatically).                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: The compiler generates temporary DD's   *
  *                      while processing header files. Not all  *
  *                      the DD's are released when the          *
  *                      compilation is done.                    *
  ****************************************************************
  * RECOMMENDATION: Install the PTF                              *
  ****************************************************************
  N/A
  

Problem conclusion

• Install the PTF
  

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:

Modules/Macros

• CCNECICS CCNECWI  CCNED240 CCNEDSCT CCNEDWRT CCNEFILT CCNEHIFC
  CCNEIPA3 CCNEIPAO CCNEMDEP CCNEOPTP CCNEP    CCNEPP   CCNETBY
  CCNMSGE  CCNMSGT  CCNQIPA
  

Fix information

• Fixed component name

  C/C++ FOR MVS

• Fixed component ID

  56551210A

Applicable component levels

• R7C0 PSY UO07332

     UP26/04/23 P F604

Fix is available

• Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.