1: /* Test for dependency tracking  added by relocations.
    2:    Copyright (C) 2000 Free Software Foundation, Inc.
    3:    This file is part of the GNU C Library.
    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, write to the Free
   17:    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   18:    02111-1307 USA.  */
   19: 
   20: #include <dlfcn.h>
   21: #include <error.h>
   22: #include <errno.h>
   23: #include <stdio.h>
   24: #include <stdlib.h>
   25: 
   26: 
   27: static void *
   28: load (const char *name)
   29: {
   30:   void *d = dlopen (name, RTLD_LAZY | RTLD_GLOBAL);
   31:   if (d == NULL)
   32:     error (EXIT_FAILURE, errno, "cannot load `%s'", name);
   33:   return d;
   34: }
   35: 
   36: 
   37: #define TEST_FUNCTION do_test ()
   38: extern int do_test (void);
   39: 
   40: int
   41: do_test (void)
   42: {
   43:   void *d1;
   44:   void *d2;
   45:   int (*f) (void);
   46: 
   47:   d1 = load ("glreflib1.so");
   48:   d2 = load ("glreflib2.so");
   49: 
   50:   f = dlsym (d2, "ref2");
   51:   if (f == NULL)
   52:     error (EXIT_FAILURE, errno, "cannot get pointer to `%s'", "ref2");
   53: 
   54:   if (f () != 42)
   55:     error (EXIT_FAILURE, 0, "wrong result from `%s'", "ref2");
   56: 
   57:   puts ("Correct result in first call");
   58:   fflush (stdout);
   59: 
   60:   /* Now unload the first file.  */
   61:   dlclose (d1);
   62: 
   63:   puts ("About to call the second time");
   64:   fflush (stdout);
   65: 
   66:   /* Try calling the function again.  */
   67:   if (f () != 42)
   68:     error (EXIT_FAILURE, 0, "wrong result from `%s' (second call)", "ref2");
   69: 
   70:   puts ("Second call succeeded!");
   71:   fflush (stdout);
   72: 
   73:   dlclose (d2);
   74: 
   75:   puts ("glreflib2 also closed");
   76:   fflush (stdout);
   77: 
   78:   return 0;
   79: }
   80: 
   81: #include "../test-skeleton.c"