gdb/testsuite/gdb.cp/infcall-dlopen.cc

   1 /* This testcase is part of GDB, the GNU debugger.
   2
   3    Copyright 2010-2017 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 3 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, see <http://www.gnu.org/licenses/>.  */
  17
  18 #include <dlfcn.h>
  19 #include <stddef.h>
  20
  21 static int
  22 openlib (const char *filename)
  23 {
  24   void *h = dlopen (filename, RTLD_LAZY);
  25
  26   if (filename == NULL)
  27     return 0;
  28
  29   if (h == NULL)
  30     return 0;
  31   if (dlclose (h) != 0)
  32     return 0;
  33   return 1;
  34 }
  35
  36 int
  37 main (void)
  38 {
  39   /* Dummy call to get the function always compiled in.  */
  40   openlib (NULL);
  41
  42   return 0;
  43 }