#include <dlfcn.h>

#include <stdio.h>

#include <stdlib.h>

static int

do_test (void)

{

  static const char modname[] = "tst-tlsmod2.so";

  int result = 0;

  int *foop;

  int (*fp) (int, int *);

  void *h;

  h = dlopen (modname, RTLD_LAZY);

  if (h == NULL)

    {

      printf ("cannot open '%s': %s\n", modname, dlerror ());

      exit (1);

    }

  fp = dlsym (h, "in_dso");

  if (fp == NULL)

    {

      printf ("cannot get symbol 'in_dso': %s\n", dlerror ());

      exit (1);

    }

  size_t modid = -1;

  if (dlinfo (h, RTLD_DI_TLS_MODID, &modid))

    {

      printf ("dlinfo RTLD_DI_TLS_MODID failed: %s\n", dlerror ());

      result = 1;

    }

  else

    printf ("dlinfo says TLS module ID %Zu\n", modid);

  void *block;

  if (dlinfo (h, RTLD_DI_TLS_DATA, &block))

    {

      printf ("dlinfo RTLD_DI_TLS_DATA failed: %s\n", dlerror ());

      result = 1;

    }

  else if (block != NULL)

    {

      printf ("dlinfo RTLD_DI_TLS_DATA says %p but should be unallocated\n",

	      block);

      result = 1;

    }

  result |= fp (0, NULL);

  foop = dlsym (h, "foo");

  if (foop == NULL)

    {

      printf ("cannot get symbol 'foo' the second time: %s\n", dlerror ());

      exit (1);

    }

  if (*foop != 16)

    {

      puts ("foo != 16");

      result = 1;

    }

  /* Now the module's TLS block has been used and should appear.  */

  if (dlinfo (h, RTLD_DI_TLS_DATA, &block))

    {

      printf ("dlinfo RTLD_DI_TLS_DATA failed the second time: %s\n",

	      dlerror ());

      result = 1;

    }

  else if (block != foop)

    {

      printf ("dlinfo RTLD_DI_TLS_DATA says %p but should be %p\n",

	      block, foop);

      result = 1;

    }

  dlclose (h);

  return result;

}

#include <support/test-driver.c>