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85 lines
2.1 KiB
C
85 lines
2.1 KiB
C
/* dlmain.c -- hello test program that uses simulated dynamic linking
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Copyright (C) 1996 Free Software Foundation, Inc.
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This file is part of GNU Libtool.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program 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 this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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USA. */
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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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struct dld_symlist
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{
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char *name;
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void *address;
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};
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extern struct dld_symlist dld_preloaded_symbols[];
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int
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main (argc, argv)
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int argc;
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char **argv;
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{
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struct dld_symlist *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 = dld_preloaded_symbols;
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while (s->name)
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{
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/* FIXME: we are simplistic about leading underscores. */
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printf ("found symbol: %s\n", s->name);
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if (!strcmp ("hello", s->name))
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phello = s->address;
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else if (!strcmp ("foo", s->name))
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pfoo = s->address;
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else if (!strcmp ("nothing", s->name))
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pnothing = s->address;
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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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