IV11658: SIGNAL 11 IN IPA64 WITH INCORRECT PDF PROFILE

January 2012 PTF for XL C for AIX, V11.1
January 2012 PTF for XL C/C++ for AIX, V11.1
April 2012 PTF for XL C for AIX, V11.1
April 2012 PTF for XL C/C++ for AIX, V11.1
July 2012 PTF for XL C/C++ for AIX, V11.1
October 2012 PTF for XL C/C++ for AIX, V11.1
October 2012 PTF for XL C for AIX, V11.1
February 2013 PTF for XL C for AIX, V11.1
February 2013 PTF for XL C/C++ for AIX, V11.1
XL C/C++ for AIX Fix Pack 14 (May 2013 PTF) for 11.1
XL C for AIX Fix Pack 14 (May 2013 PTF) for 11.1
XL C/C++ for AIX Fix Pack 15 (August 2013 PTF) for 11.1
XL C for AIX Fix Pack 15 (August 2013 PTF) for 11.1
XL C/C++ for AIX Fix Pack 16 (November 2013 PTF) for 11.1
XL C for AIX Fix Pack 17 (February 2014 PTF) for 11.1
XL C/C++ for AIX Fix Pack 17 (February 2014 PTF) for 11.1
XL C/C++ for AIX Fix Pack 18 (May 2014 PTF) for 11.1
XL C/C++ for AIX Fix Pack 19 (August 2014 PTF) for 11.1
XL C/C++ for AIX Fix Pack 20 (November 2014 PTF) for 11.1
XL C for AIX Fix Pack 21 (April 2015 PTF) for 11.1
XL C/C++ for AIX Fix Pack 21 (April 2015 PTF) for 11.1
XL C/C++ for AIX Fix Pack 22 (September 2015 PTF) for 11.1
XL C for AIX Fix Pack 23 (March 2016 PTF) for 11.1
XL C/C++ for AIX Fix Pack 23 (March 2016 PTF) for 11.1
XL C for AIX Fix Pack 24 (September 2016 PTF) for 11.1
XL C/C++ for AIX Fix Pack 24 (September 2016 PTF) for 11.1
July 2012 PTF for XL C for AIX, V11.1
XL C for AIX Fix Pack 16 (November 2013 PTF) for 11.1
XL C for AIX Fix Pack 18 (May 2014 PTF) for 11.1
XL C for AIX Fix Pack 19 (August 2014 PTF) for 11.1
XL C for AIX Fix Pack 20 (November 2014 PTF) for 11.1
XL C for AIX Fix Pack 22 (September 2015 PTF) for 11.1

APAR status

• Closed as program error.

Error description

• When using an incorrect profile file while compiling with PDF,
  TPO produces a core and stops the compilation with the following
  stack trace:
  
  $ dbx  ipa64 core
  Type 'help' for help.
  warning: The core file is not a fullcore. Some info may
  not be available.
  [using memory image in core]
  reading symbolic information ...warning: no source compiled with
  -g
  
  
  Segmentation fault in leftmost at 0x900000000020c2c
  0x900000000020c2c (leftmost+0xc) e8a90008          ld
  r5,0x8(r9)
  (dbx) where
  leftmost(??, ??) at 0x900000000020c2c
  malloc_y(0x21, 0x0, 0x9001000a0065b30, 0x1, 0xc, 0x0, 0x36,
  0xfffffffffff8dc8) at 0x900000000023404
  malloc_common@AF79_63(??) at 0x90000000001f988
  __ct__16ExtensibleStringFUi(??, ??) at 0x1000ea8bc
  FPrint__7MessageFQ2_7Message6ERouteUiN22PCcT2T5T2T5T2T5T2T5(??,
  ??, ??, ??, ??, ??, ??, ??) at 0x1001a3370
  Print__7MessageFUiPCcN42(??, ??, ??, ??, ??, ??, ??) at
  0x1000cae34
  signal_traceback(??, ??, ??) at 0x100959254
  @847@IPASignalHandler(??, ??, ??) at 0x100958ed4
  leftmost(??, ??) at 0x900000000020c2c
  malloc_y(0x20, 0x300000003, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0) at
  0x900000000023404
  realloc_y(??, ??, ??) at 0x900000000022180
  realloc_common(??, ??) at 0x90000000001f0e8
  GrowTo__7ArrayOfXT17ExceptionFSMEntry_FUi@AF99_8(??, ??) at
  0x1000ca318
  GrowTo__7TableOfXT17ExceptionFSMEntry_FUi@AF100_7(??, ??, ??) at
  0x1000ca528
  AddEntryAtPosition__7TableOfXT17ExceptionFSMEntry_FUi(??, ??) at
  0x10100cb6c
  MergeTable__14ExceptionTableFR9ProcedureRC14ExceptionTableUiRPUs
  RP9HashTableXTUiTUi_(??, ??, ??, ??, ??, ??) at 0x1010188dc
  @775@MergeTables__FP9ProcedureR13CallGraphNodeUiP14ExceptionTabl
  eT4R16ControlFlowGraphRC13CallGraphEdgeP7TableOfXTi_RUiT9RPUsR6L
  istOfXT18removedEdgeElement_RP9HashTableXTUiTUi_
  (??, ??, ??, ??, ??, ??, ??, ??) at 0x10101417c
  @775@InlineCallsite__FUiRP15CompUnitMappingRP9HashTableXTUiTUi_R
  6ListOfXT14EdgeListRecord_R9BitVectorR6ListOfXTUi_R6ListOfXT18re
  movedEdgeElement_R9HashTableXTUiTP14EdgeListReco
  rd_RUcR16ControlFlowGraphP7TableOfXTi_(0x3a3d00003a3d, 0x0,
  0x6c0, 0x0, 0x1fccc00000000, 0x0, 0x0, 0x0) at 0x10101212c
  @775@InlineEdgesInList__FR6ListOfXT14EdgeListRecord_(??) at
  0x100060ce8
  doTransformation__15DoEarlyInliningFv(??) at 0x101b8e734
  transform__19InterTransformationFv(??) at 0x10020c4a8
  Optimize__15LinkageInstanceFv(??) at 0x1016097e8
  InvokePass2__FiPPc(??, ??) at 0x1000d3430
  main(??, ??) at 0x100929ba8
  

Local fix

• n/a
  

Problem summary

• USERS AFFECTED:
  Anyone using IPA Level 1 or higher that has exception handling
  code could theorectically run into this
  
  PROBLEM DESCRIPTION:
  A segfault is hit during IPA Level 1 link in an internal
  optimization routine that performs inlining.
  

Problem conclusion

• The compiler was fixed by disabling inlining recursive
  functions that are exception aware.
  

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:

  LI76646

Fix information

• Fixed component name

  XL C FOR AIX

• Fixed component ID

  5724X1200

Applicable component levels