1  #include <stdio.h>
       2  #include <dlfcn.h>
       3  #include <mcheck.h>
       4  #include <stdlib.h>
       5  
       6  static int
       7  do_test (void)
       8  {
       9    void *h;
      10    int ret = 0;
      11    /* Carry out *one* failing call to dlopen before starting mtrace to
      12       force any one-time initialization that may happen to the
      13       executable link map e.g. expansion and caching of $ORIGIN.  */
      14    h = dlopen ("$ORIGIN/tst-leaks1.o", RTLD_LAZY);
      15    if (h != NULL)
      16      {
      17        puts ("dlopen unexpectedly succeeded");
      18        ret = 1;
      19        dlclose (h);
      20      }
      21  
      22    /* Start tracing and run each test 5 times to see if there are any
      23       leaks in the failing dlopen.  */
      24    mtrace ();
      25  
      26    for (int i = 0; i < 10; i++)
      27      {
      28        h = dlopen (i < 5
      29  		  ? "./tst-leaks1.c"
      30  		  : "$ORIGIN/tst-leaks1.o", RTLD_LAZY);
      31        if (h != NULL)
      32  	{
      33  	  puts ("dlopen unexpectedly succeeded");
      34  	  ret = 1;
      35  	  dlclose (h);
      36  	}
      37      }
      38  
      39    return ret;
      40  }
      41  
      42  #include <support/test-driver.c>