PQ92579: EXTRN/WXTRN ENHANCEMENT FOR PARTS

Obtain the fix for this APAR.

APAR status

• Closed as new function.

Error description

• Enhance EXTRN/WXTRN assembler instructions to allow
  specification of external symbols as PARTS with text.
  ASMA061E Symbol not name of DSECT is seen in this 5 line program
           EXTRN HELLO2
           EXTRN HELLO3
   HELLO2  XATTR PSECT(HELLO3)
           DC    Q(HELLO3)
           END
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: This may affect High Level Assembler users   *
  *                 working with parts.                          *
  ****************************************************************
  * PROBLEM DESCRIPTION: Use the High Level Assembler Release 5  *
  *                      EXTRN or WXTRN instructions to specify  *
  *                      external symbols that reference parts.  *
  ****************************************************************
  * RECOMMENDATION: Apply the PTF provided.                      *
  ****************************************************************
  Add PART(symbol1,symbol2,...) operand syntax to the EXTRN and
  WXTRN assembler instructions; to allow the specification of
  external symbols that reference a part.
  

Problem conclusion

Temporary fix

Comments

• The High Level Assembler has been modified so that external
  symbols which reference parts can be specified, and in
  combination with the GOFF option cause the following changes
  to the associated External Symbol Definition text record:
  1. Name Space ID (byte 40) is set to Writable Static Area
     (X'03').
  2. Part Reference (byte 41 bit 5) is set on (X'04').
  -
  Publication Closing Code: DEVCHNG
  SC26-4940-04 High Level Assembler for MVS & VM & VSE
               Language Reference Release 5
  
    Softcopy section 5.27 "EXTRN Instruction", add PART() keyword
    to the syntax diagram:
  
    +---------  -------------------------------------------------+
  
                          <-,-------------------------------+
      >>------  ---EXTRN--------------------------------------><
         +-seq  l-+        +--external_symbol-------------+
                                    <-,---------------+
                           +--PART(----external_symbol--)-+
  
    +---------  -------------------------------------------------+
  
    Add following after description of external_symbol:
  
    PART(external_symbol)
      external_symbol is a relocatable symbol as described above,
      that also:
  
      o   Is a reference to a part as defined on the CATTR
          instruction.
  
    Softcopy section 5.47 "WXTRN Instruction", add PART() keyword
    to the syntax diagram:
  
    +---------  -------------------------------------------------+
  
                          <-,-------------------------------+
      >>------  ---WXTRN--------------------------------------><
         +-seq  l-+        +--external_symbol-------------+
                                    <-,---------------+
                           +--PART(----external_symbol--)-+
  
    +---------  -------------------------------------------------+
  
    Add following after description of external_symbol:
  
    PART(external_symbol)
      external_symbol is a relocatable symbol as described above,
      that also:
  
      o   Is a reference to a part as defined on the CATTR
          instruction.
  

APAR Information

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

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

  UK00527 UK00528 UK00529

Modules/Macros

•    ASMAINFO ASMA1A   ASMA1F   ASMA22   ASMA9Z
  SYMTABLE
  

Fix information

• Fixed component name

  HLASM MVS, VM &

• Fixed component ID

  569623400

Applicable component levels

• R150 PSY UK00528

     UP05/02/18 P F502

• R350 PSY UK00527

     UP05/02/18 P 0502

• R589 PSY UK00529

     UP05/02/18 P E311

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.