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/* dlmain.c -- hello test program that uses simulated dynamic linking
Copyright (C) 1996-1999, 2004, 2006, 2007, 2010 Free Software
Foundation, Inc.
This file is part of GNU Libtool.
GNU Libtool is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of
the License, or (at your option) any later version.
GNU Libtool is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Libtool; see the file COPYING. If not, a copy
can be downloaded from http://www.gnu.org/licenses/gpl.html,
or obtained by writing to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "foo.h"
#include <stdio.h>
#include <string.h>
#define lt_preloaded_symbols lt__PROGRAM__LTX_preloaded_symbols
typedef struct
{
const char *name;
lt_ptr_t address;
} lt_dlsymlist;
extern LT_DLSYM_CONST lt_dlsymlist lt_preloaded_symbols[];
int
main (int argc, char **argv)
{
const lt_dlsymlist *s;
int (*pfoo)() = 0;
int (*phello)() = 0;
int *pnothing = 0;
printf ("Welcome to *modular* GNU Hell!\n");
/* Look up the symbols we require for this demonstration. */
s = lt_preloaded_symbols;
while (s->name)
{
if (s->address) {
const char *name = s->name;
printf ("found symbol: %s\n", name);
if (!strcmp ("hello", name))
phello = (int(*)())s->address;
else if (!strcmp ("foo", name))
pfoo = (int(*)())s->address;
else if (!strcmp ("nothing", name))
#ifndef _WIN32
/* In an ideal world we could do this... */
pnothing = (int*)s->address;
#else /* !_WIN32 */
/* In an ideal world a shared lib would be able to export data */
pnothing = (int*)¬hing;
#endif
} else
printf ("found file: %s\n", s->name);
s ++;
}
/* Try assigning to the nothing variable. */
if (pnothing)
*pnothing = 1;
else
fprintf (stderr, "did not find the `nothing' variable\n");
/* Just call the functions and check return values. */
if (pfoo)
{
if ((*pfoo) () != FOO_RET)
return 1;
}
else
fprintf (stderr, "did not find the `foo' function\n");
if (phello)
{
if ((*phello) () != HELLO_RET)
return 3;
}
else
fprintf (stderr, "did not find the `hello' function\n");
return 0;
}
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