gdb/testsuite/gdb.base/unload.c

   1 /* This testcase is part of GDB, the GNU debugger.
   2
   3    Copyright 2004, 2007 Free Software Foundation, Inc.
   4
   5    This program is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 2 of the License, or
   8    (at your option) any later version.
   9
  10    This program 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
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program; if not, write to the Free Software
  17    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
  18
  19 #include <stdio.h>
  20 #include <stdlib.h>
  21 #include <dlfcn.h>
  22
  23 int k = 0;
  24
  25 #define SHLIB_NAME SHLIB_DIR "/unloadshr.sl"
  26
  27 int main()
  28 {
  29   void *handle;
  30   int (*unloadshr) (int);
  31   int y;
  32   const char *msg;
  33
  34   handle = dlopen (SHLIB_NAME, RTLD_LAZY);
  35   msg = dlerror ();
  36
  37   if (!handle)
  38     {
  39       fprintf (stderr, msg);
  40       exit (1);
  41     }
  42
  43   unloadshr = (int (*)(int))dlsym (handle, "shrfunc1");
  44
  45   if (!unloadshr)
  46     {
  47       fprintf (stderr, dlerror ());
  48       exit (1);
  49     }
  50
  51   y = (*unloadshr)(3);
  52
  53   printf ("y is %d\n", y);
  54
  55   dlclose (handle);
  56
  57   return 0;
  58 }