* io/bits/fcntl2.h (__open_2): Add nonnull attribute.
[glibc.git] / dlfcn / tst-dladdr.c
blob35f40700f6ee33c8ab3f9510e4ee7a4c4d026bf7
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>.
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.
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.
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. */
21 #include <dlfcn.h>
22 #include <errno.h>
23 #include <error.h>
24 #include <stdio.h>
25 #include <stdlib.h>
26 #include <string.h>
28 #include <ldsodefs.h>
31 #define TEST_FUNCTION do_test ()
32 extern int do_test (void);
34 int
35 do_test (void)
37 void *handle;
38 int (*sym) (void); /* We load ref1 from glreflib1.c. */
39 Dl_info info;
40 int ret;
43 handle = dlopen ("glreflib1.so", RTLD_NOW);
44 if (handle == NULL)
45 error (EXIT_FAILURE, 0, "cannot load: glreflib1.so");
47 sym = dlsym (handle, "ref1");
48 if (sym == NULL)
49 error (EXIT_FAILURE, 0, "dlsym failed");
51 memset (&info, 0, sizeof (info));
52 ret = dladdr (sym, &info);
54 if (ret == 0)
55 error (EXIT_FAILURE, 0, "dladdr failed");
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);
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");
74 dlclose (handle);
76 return 0;
80 #include "../test-skeleton.c"