PJ40290: Z/TPFDF SPMS DO NOT FLAG A MISSING #ESUB AFTER #SUBR

APAR status

• Closed as program error.

Error description

• See Problem Summary.
  

Local fix

• na
  

Problem summary

• APAR NUMBER:  PJ40290
  PRODUCT:  z/TPF
  FUNCTIONAL AREA:  MISC
  SHIPPED IN PUT:  9
  
  ABSTRACT:
  Additional error checks should be added to notify users if
  certain z/TPFDF structured programming macro (SPM) constructs
  are incomplete
  
  PACKAGE CONTENTS:
  Source Segments:
  (C) base/macro/finis.mac
  
  Object Only Binaries:
  None.
  
  Configuration Independent Binaries:
  None.
  
  Support Files:
  None.
  
  OTHER BINARIES TO BUILD: NO
  None.
  
  COMMENTS:
  Additional checking should be added to check for z/TPFDF
  structured programming macro (SPM) application coding errors.
  In particular:
  - If a #SUBR SPM is coded following another #SUBR SPM (that is,
  the #ESUB SPM is missing or in the wrong place), an
  informational MNOTE (severity *) is generated (#SUBR SHOULD NOT
  BE NESTED WITHIN ANY SPM FIGURE). Because this MNOTE is
  informational, it can easily be missed, leading to
  unpredictable application behavior. This should be flagged as a
  higher severity MNOTE in the assembly.
  - If an #IF SPM is missing a corresponding #EIF SPM in an
  application, a "** ASMA044E Undefined symbol " error is
  generated. It would be helpful if a message was also generated
  to indicate that the problem was that an #EIF is missing.
  - If a #CAST or #DO SPM is missing a corresponding #ECAS or
  #EDO SPM, respectively, the user is not notified that the SPM
  structure is incomplete. As a result, the application may not
  behave as expected.
  

Problem conclusion

• SOLUTION:
  finis.mac has been updated so that severity 4 MNOTE ("SPM
  NESTING STACK NOT EMPTY-#EIF,#EDO,#ECAS OR #ESUB MISSING") will
  be generated if any #IF, #DO, #CAST, or #SUBR SPM is not coded
  with a corresponding #EIF, #EDO, #ECAS, or #ESUB, respectively.
  Furthermore, with co-requisite z/TPFDF APAR PM67148, the
  existing informational MNOTE "#SUBR SHOULD NOT BE NESTED WITHIN
  ANY SPM FIGURE" has been changed to be a severity 4 MNOTE:
  "INCORRECT NESTING OF #SUBR MACRO OR MISSING #ESUB".
  
  COREQS: YES
  PM67148
  
  MIGRATION CONSIDERATIONS: YES
  Application programming interface (API) changes:
  Any application that is coded with an #IF, #DO, #CAST, or #SUBR
  SPM that does not have a corresponding #EIF, #EDO, #ECAS, or
  #ESUB will now generated an MNOTE 4 "SPM NESTING STACK NOT
  EMPTY-#EIF,#EDO,#ECAS OR #ESUB MISSING".  This means that
  object code may no longer be generated and any such
  applications will need to be updated as a result.
  
  
  
  BUILD COMMANDS AND INSTRUCTIONS: NO
  None.
  
  UPDATED INFORMATION UNITS: NO
  None.
  
  See your IBM representative if you need additional information.
  
  DOWNLOAD INSTRUCTIONS:
  http://www.ibm.com/software/htp/tpf/maint/maintztpf.html
  
  APAR URL:
  http://www.ibm.com/software/htp/tpf/ztpfmaint/put9/PJ40290.htm
  

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:

Fix information

• Fixed component name

  Z/TPF

• Fixed component ID

  5748T1501

Applicable component levels

• R110 PSY

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