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3d0fc4870e
* doc/libtool.texi (Dlpreopening): Remove broken documentation of lt_dlsymbol and lt_dlsymlist. Document typedef lt_dlsymlist and symbol lt_preloaded_symbols according to the implementation. * tests/demo/dlmain.c (lt_symlist): Make struct anonymous ... (lt_dlsymlist): ... and typedef to this name. (lt_preloaded_symbols, main): Adjust. * tests/pdemo/longer_file_name_dlmain.c: Likewise. Signed-off-by: Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
98 lines
2.5 KiB
C
98 lines
2.5 KiB
C
/* dlmain.c -- hello test program that uses simulated dynamic linking
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Copyright (C) 1996-1999, 2004, 2006, 2007, 2010 Free Software
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Foundation, Inc.
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This file is part of GNU Libtool.
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GNU Libtool is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of
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the License, or (at your option) any later version.
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GNU Libtool is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Libtool; see the file COPYING. If not, a copy
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can be downloaded from http://www.gnu.org/licenses/gpl.html,
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or obtained by writing to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "foo.h"
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#include <stdio.h>
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#include <string.h>
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#define lt_preloaded_symbols lt__PROGRAM__LTX_preloaded_symbols
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typedef struct
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{
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const char *name;
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lt_ptr_t address;
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} lt_dlsymlist;
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extern const lt_dlsymlist lt_preloaded_symbols[];
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int
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main ()
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{
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const lt_dlsymlist *s;
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int (*pfoo)() = 0;
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int (*phello)() = 0;
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int *pnothing = 0;
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printf ("Welcome to *modular* GNU Hell!\n");
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/* Look up the symbols we require for this demonstration. */
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s = lt_preloaded_symbols;
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while (s->name)
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{
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if (s->address) {
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const char *name = s->name;
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printf ("found symbol: %s\n", name);
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if (!strcmp ("hello", name))
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phello = (int(*)())s->address;
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else if (!strcmp ("foo", name))
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pfoo = (int(*)())s->address;
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else if (!strcmp ("nothing", name))
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#ifndef _WIN32
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/* In an ideal world we could do this... */
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pnothing = (int*)s->address;
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#else /* !_WIN32 */
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/* In an ideal world a shared lib would be able to export data */
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pnothing = (int*)¬hing;
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#endif
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} else
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printf ("found file: %s\n", s->name);
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s ++;
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}
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/* Try assigning to the nothing variable. */
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if (pnothing)
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*pnothing = 1;
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else
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fprintf (stderr, "did not find the `nothing' variable\n");
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/* Just call the functions and check return values. */
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if (pfoo)
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{
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if ((*pfoo) () != FOO_RET)
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return 1;
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}
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else
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fprintf (stderr, "did not find the `foo' function\n");
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if (phello)
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{
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if ((*phello) () != HELLO_RET)
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return 3;
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}
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else
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fprintf (stderr, "did not find the `hello' function\n");
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return 0;
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}
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