elf/tst-align.c

   1 /* Copyright (C) 2003-2021 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #include <dlfcn.h>
  20 #include <stdio.h>
  21 #include <stdlib.h>
  22
  23 static int
  24 do_test (void)
  25 {
  26   static const char modname[] = "tst-alignmod.so";
  27   int result = 0;
  28   void (*fp) (int *);
  29   void *h;
  30
  31   h = dlopen (modname, RTLD_LAZY);
  32   if (h == NULL)
  33     {
  34       printf ("cannot open '%s': %s\n", modname, dlerror ());
  35       exit (1);
  36     }
  37
  38   fp = dlsym (h, "in_dso");
  39   if (fp == NULL)
  40     {
  41       printf ("cannot get symbol 'in_dso': %s\n", dlerror ());
  42       exit (1);
  43     }
  44
  45   fp (&result);
  46
  47   dlclose (h);
  48
  49   return result;
  50 }
  51
  52 #include <support/test-driver.c>