1  #include "../dlfcn/dlfcn.h"
       2  #include <stdio.h>
       3  #include <stdlib.h>
       4  #include <gnu/lib-names.h>
       5  
       6  static int
       7  do_test (void)
       8  {
       9    int result = 0;
      10  
      11    printf ("\nOpening pthread library.\n");
      12    void *pthread = dlopen (LIBPTHREAD_SO, RTLD_LAZY);
      13  
      14    /* This is a test for correct DF_1_NODELETE clearing when dlopen failure
      15       happens.  We should clear DF_1_NODELETE for failed library only, because
      16       doing this for others (e.g. libpthread) might cause them to be unloaded,
      17       that may lead to some global references (e.g. __rtld_lock_unlock) to be
      18       broken.  The dlopen should fail because of undefined symbols in shared
      19       library, that cause DF_1_NODELETE to be cleared.  For libpthread, this
      20       flag should be set, because if not, SIGSEGV will happen in dlclose.  */
      21    if (dlopen ("tst-nodelete2mod.so", RTLD_NOW) != NULL)
      22      {
      23        printf ("Unique symbols test failed\n");
      24        result = 1;
      25      }
      26  
      27    if (pthread)
      28      dlclose (pthread);
      29  
      30    if (result == 0)
      31      printf ("SUCCESS\n");
      32  
      33    return result;
      34  }
      35  
      36  #include <support/test-driver.c>