1: /* Test for dladdr.
    2:    Copyright (C) 2000, 2001 Free Software Foundation, Inc.
    3:    This file is part of the GNU C Library.
    4:    Contributed by Volkmar Sieh <vs@caldera.de> and Andreas Jaeger <aj@suse.de>.
    5: 
    6:    The GNU C Library is free software; you can redistribute it and/or
    7:    modify it under the terms of the GNU Lesser General Public
    8:    License as published by the Free Software Foundation; either
    9:    version 2.1 of the License, or (at your option) any later version.
   10: 
   11:    The GNU C Library is distributed in the hope that it will be useful,
   12:    but WITHOUT ANY WARRANTY; without even the implied warranty of
   13:    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   14:    Lesser General Public License for more details.
   15: 
   16:    You should have received a copy of the GNU Lesser General Public
   17:    License along with the GNU C Library; if not, write to the Free
   18:    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   19:    02111-1307 USA.  */
   20: 
   21: #include <dlfcn.h>
   22: #include <errno.h>
   23: #include <error.h>
   24: #include <stdio.h>
   25: #include <stdlib.h>
   26: #include <string.h>
   27: 
   28: #include <ldsodefs.h>
   29: 
   30: 
   31: #define TEST_FUNCTION do_test ()
   32: extern int do_test (void);
   33: 
   34: int
   35: do_test (void)
   36: {
   37:   void *handle;
   38:   int (*sym) (void); /* We load ref1 from glreflib1.c.  */
   39:   Dl_info info;
   40:   int ret;
   41: 
   42: 
   43:   handle = dlopen ("glreflib1.so", RTLD_NOW);
   44:   if (handle == NULL)
   45:     error (EXIT_FAILURE, 0, "cannot load: glreflib1.so");
   46: 
   47:   sym = dlsym (handle, "ref1");
   48:   if (sym == NULL)
   49:     error (EXIT_FAILURE, 0, "dlsym failed");
   50: 
   51:   memset (&info, 0, sizeof (info));
   52:   ret = dladdr (sym, &info);
   53: 
   54:   if (ret == 0)
   55:     error (EXIT_FAILURE, 0, "dladdr failed");
   56: 
   57:   printf ("address of ref1 = %lx\n",
   58:           (unsigned long int)  DL_LOOKUP_ADDRESS (sym));
   59:   printf ("ret = %d\n", ret);
   60:   printf ("info.dli_fname = %p (\"%s\")\n", info.dli_fname, info.dli_fname);
   61:   printf ("info.dli_fbase = %p\n", info.dli_fbase);
   62:   printf ("info.dli_sname = %p (\"%s\")\n", info.dli_sname, info.dli_sname);
   63:   printf ("info.dli_saddr = %p\n", info.dli_saddr);
   64: 
   65:   if (info.dli_fname == NULL)
   66:     error (EXIT_FAILURE, 0, "dli_fname is NULL");
   67:   if (info.dli_fbase == NULL)
   68:     error (EXIT_FAILURE, 0, "dli_fbase is NULL");
   69:   if (info.dli_sname == NULL)
   70:     error (EXIT_FAILURE, 0, "dli_sname is NULL");
   71:   if (info.dli_saddr == NULL)
   72:     error (EXIT_FAILURE, 0, "dli_saddr is NULL");
   73: 
   74:   dlclose (handle);
   75: 
   76:   return 0;
   77: }
   78: 
   79: 
   80: #include "../test-skeleton.c"