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IJ21106: __STERM STATIC DESTRUCTOR REMOVED BY LINKER WHEN USING -QTWOLINK

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APAR status

  • Closed as program error.

Error description

  • When linking with the -qtwolink option, the static destructor
__sterm...() function for a library is removed by the linker,
resulting in missed or incorrect (i.e. NULL) entries in the
__cdtors table used by the runtime to construct/initialize and
destruct/deinitialize static objects.

Depending on the __cdtors entry, this may result in a runtime
segmentation fault.

Local fix

  • Use `-bcdtors:mbr:0:s` in place of `-qtwolink`.

Problem summary

  • The AIX linker is removing the __sterm...() static destructor
function from libraries when -qtwolink is used due to there not
being any link/connection between __sinit...() and __sterm...().

Problem conclusion

  • Changes were made to link __sinit...() and __sterm...() together
so that the AIX linker no longer removes __sterm...().

Temporary fix

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    IJ21106
    • 

  • Reported component name
    XL C/C++ FOR AI
    • 

  • Reported component ID
    5725C7200
    • 

  • Reported release
    G10
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt / Xsystem
    • 

  • Submitted date
    2019-11-25
    • 

  • Closed date
    2022-08-01
    • 

  • Last modified date
    2022-08-01
    • 





    

  • 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
    XL C/C++ FOR AI
    • 

  • Fixed component ID
    5725C7200
    • 



Applicable component levels


    








      
              
                            

              

              [{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSGH3R","label":"XL C\/C++ for AIX"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"G10","Line of Business":{"code":"LOB57","label":"Power"}}]
              

                          

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            01 August 2022
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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