#include <dlfcn.h>

#include <mcheck.h>

#include <stdio.h>

#include <stdlib.h>

int

main (void)

{

  void *p1;

  void *p2;

  int (*fp) (void);

  int result;

  mtrace ();

  p1 = dlopen ("dblloadmod1.so", RTLD_LAZY);

  if (p1 == NULL)

    {

      printf ("cannot load dblloadmod1.so: %s\n", dlerror ());

      exit (EXIT_FAILURE);

    }

  p2 = dlopen ("dblloadmod2.so", RTLD_LAZY);

  if (p2 == NULL)

    {

      printf ("cannot load dblloadmod2.so: %s\n", dlerror ());

      exit (EXIT_FAILURE);

    }

  if (dlclose (p1) != 0)

    {

      printf ("error while closing dblloadmod1.so: %s\n", dlerror ());

      exit (EXIT_FAILURE);

    }

  fp = dlsym (p2, "xyzzy");

  if (fp == NULL)

    {

      printf ("cannot get function \"xyzzy\": %s\n", dlerror ());

      exit (EXIT_FAILURE);

    }

  result = fp ();

  if (dlclose (p2) != 0)

    {

      printf ("error while closing dblloadmod2.so: %s\n", dlerror ());

      exit (EXIT_FAILURE);

    }

  return result;

}