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
  22 #ifdef __WIN32__
  23 #include <windows.h>
  24 #define dlopen(name, mode) LoadLibrary (name)
  25 #define dlsym(handle, func) GetProcAddress (handle, func)
  26 #define dlclose(handle) FreeLibrary (handle)
  27 #define dlerror() "error %d occurred", GetLastError ()
  28 #else
  29 #include <dlfcn.h>
  30 #endif
  31
  32 int k = 0;
  33
  34 int main()
  35 {
  36   void *handle;
  37   int (*unloadshr) (int);
  38   int y;
  39   const char *msg;
  40
  41   handle = dlopen (SHLIB_NAME, RTLD_LAZY);
  42
  43   if (!handle)
  44     {
  45       fprintf (stderr, dlerror ());
  46       exit (1);
  47     }
  48
  49   unloadshr = (int (*)(int))dlsym (handle, "shrfunc1");
  50
  51   if (!unloadshr)
  52     {
  53       fprintf (stderr, dlerror ());
  54       exit (1);
  55     }
  56
  57   y = (*unloadshr)(3);
  58
  59   printf ("y is %d\n", y);
  60
  61   dlclose (handle);
  62
  63   return 0;
  64 }