IV31921: PDF FILE NOT WRITTEN IF _EXIT() IS CALLED

APAR status

• Closed as user error.

Error description

• When a program compiled with -qpdf1 exits using the _exit()
  function instead of the exit() function, the profiling data
  generated is not written out to a PDF profiling data file.
  
  
       ===== TEST CASE =====
  
  $ cat test2.c
  int main(int argc, char *argv[])
  {
     if ( argc == 2 ) {
          if ( atoi(argv[1]) == 1 )
             exit(0);
          else
             _exit(0);
     }
     return 0;
  }
  $ $cdir11com/xlc -qpdf1=pdfname=mypdf -qipa test2.c
  $ ./a.out 1
  $ ls | grep mypdf
  mypdf
  $ rm mypdf
  $ ./a.out 2
  $ ls | grep mypdf
  $
  

Local fix

• Exit using exit() instead of _exit().
  

Problem summary

Problem conclusion

Temporary fix

Comments

• The design of the PDF feature requires that the program exits
  via the exit() function because a 'fini' function
  (-binitfini::__pdfexit) must be invoked to write out the PDF
  data output file.  If a program exits via _exit(), this function
  does not get called, and no PDF profiling file is created.
  
  Replace calls to _exit() with exit() to solve the issue.
  

APAR Information

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

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

Fix information

Applicable component levels