elf/tst-leaks1.c

   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>