LI74479: UNRESOLVED REFERENCE WITH SIGTRAP HANDLER

April 2009 Update for XL Fortran Advanced Edition for Blue Gene/L, V11.1
September 2010 Update for XL Fortran Advanced Edition for Blue Gene/L, V11.1

APAR status

• Closed as program error.

Error description

• When using the -qsigtrap option, undefined reference to
  'xl__trce' is being generated.
  
  Compile Line:
  blrts_xlf90 test.f90 -C -qsigtrap -o test
  
  ===== TESTCASE:
  =======Start of test.f90===========
  program debord
    real, dimension(100) :: t
    integer n
    print *, "Entrez une valeur"
    read *,n
    call random_number( t(n) )
    print *, t(n)
  end program debord
  ========End of test.f90============
  
  
  ===== ACTUAL OUTPUT:
  ** debord   === End of Compilation 1 ===
  1501-510  Compilation successful for file test.f90.
  test.o: In function `main':
  test.f90:(.text+0x32): undefined reference to `xl__trce'
  test.f90:(.text+0x36): undefined reference to `xl__trce'
  
  
  ===== EXPECTED OUTPUT:
  Should not produce those errors.
  

Local fix

• n/a
  

Problem summary

• Users were not able use the traceback routines on
  the BG platform. Specifying -qsigtrap would result in an
  error at the link stage because the traceback
  routines did not exist in the BG version of the XLF RT.
  
  The traceback routines were never
  implemented for the BG platform. They were excluded from the
  BG version of the XLF RT.
  

Problem conclusion

• Traceback routines have been enabled in the XLF Runtime. This
  fix also requires 3 other BG OS fixes (available in V1R3 of
  BG/P V11.1 and later) that go hand in hand for a
  complete solution.
  

Temporary fix

Comments

APAR Information

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

  LI73895

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

Fix information

• Fixed component name

  XL FORTRAN AE B

• Fixed component ID

  5799HJG00

Applicable component levels

• RB10 PSN LI73895

     UP06/09/13