elf/tst-align.c

   1 /* Copyright (C) 2003-2023 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <https://www.gnu.org/licenses/>.  */
  17
  18 #include <dlfcn.h>
  19 #include <stdio.h>
  20 #include <stdlib.h>
  21
  22 static int
  23 do_test (void)
  24 {
  25   static const char modname[] = "tst-alignmod.so";
  26   int result = 0;
  27   void (*fp) (int *);
  28   void *h;
  29
  30   h = dlopen (modname, RTLD_LAZY);
  31   if (h == NULL)
  32     {
  33       printf ("cannot open '%s': %s\n", modname, dlerror ());
  34       exit (1);
  35     }
  36
  37   fp = dlsym (h, "in_dso");
  38   if (fp == NULL)
  39     {
  40       printf ("cannot get symbol 'in_dso': %s\n", dlerror ());
  41       exit (1);
  42     }
  43
  44   fp (&result);
  45
  46   dlclose (h);
  47
  48   return result;
  49 }
  50
  51 #include <support/test-driver.c>