PI85577: STRUCT CONTROL BLOCK POINTER PASSED TO INLINED FUNCTION NOT SET CORRECTLY

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• After inlining a function that allocates a block of memory, the
  pointer to the memory is optimized away, and subsequent
  references to the memory result in an 0C4 segmentation fault.
  
  
     === EXAMPLE ===
  
  MISSING LOAD:
  010947 |  * IndexBlock->NextBlock = CurIndexBlock;
  010947 |  LG r15,#SPILL2(,r13,376)
  010947 |  ST r15,(*)IndexBlock_T.NextBlock(,r5,0)
  
  PRESENT LOAD:
  010947 |  * IndexBlock->NextBlock = CurIndexBlock;
  010947 |  L  r14,pNewIndexBlock(,r13,216)   // ***
  010947 |  LG r7,#SPILL2(,r13,312)
  010947 |  ST r7,(*)IndexBlock_T.NextBlock(,r14,0)
  

Local fix

• Disable inlining or use #pragma noinline to prevent inlining of
  the problem function.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: XLC Users using the HGPR option.             *
  ****************************************************************
  * PROBLEM DESCRIPTION: Runtime segmentation failure.           *
  ****************************************************************
  .
  

Problem conclusion

• Apply service provided.
  

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:

  PI87348 PI95829 PI96197

Modules/Macros

• CCNECICS CCNECWI  CCNED210 CCNEDSCT CCNEDWRT CCNEFILT CCNEHIFC
  CCNEMDEP CCNEOPTP CCNEP    CCNEPP   CCNETBY  CCNMSGE  CCNMSGT
  

Fix information

• Fixed component name

  C/C++ FOR MVS

• Fixed component ID

  56551210A

Applicable component levels

• R790 PSY UI50869

     UP17/10/20 P F710

Fix is available

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