| lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame^] | 1 | /* Test for dladdr. |
| 2 | Copyright (C) 2000-2015 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, see |
| 18 | <http://www.gnu.org/licenses/>. */ |
| 19 | |
| 20 | #include <dlfcn.h> |
| 21 | #include <errno.h> |
| 22 | #include <error.h> |
| 23 | #include <stdio.h> |
| 24 | #include <stdlib.h> |
| 25 | #include <string.h> |
| 26 | |
| 27 | #include <ldsodefs.h> |
| 28 | |
| 29 | |
| 30 | #define TEST_FUNCTION do_test () |
| 31 | extern int do_test (void); |
| 32 | |
| 33 | int |
| 34 | do_test (void) |
| 35 | { |
| 36 | void *handle; |
| 37 | int (*sym) (void); /* We load ref1 from glreflib1.c. */ |
| 38 | Dl_info info; |
| 39 | int ret; |
| 40 | |
| 41 | |
| 42 | handle = dlopen ("glreflib1.so", RTLD_NOW); |
| 43 | if (handle == NULL) |
| 44 | error (EXIT_FAILURE, 0, "cannot load: glreflib1.so"); |
| 45 | |
| 46 | sym = dlsym (handle, "ref1"); |
| 47 | if (sym == NULL) |
| 48 | error (EXIT_FAILURE, 0, "dlsym failed"); |
| 49 | |
| 50 | memset (&info, 0, sizeof (info)); |
| 51 | ret = dladdr (sym, &info); |
| 52 | |
| 53 | if (ret == 0) |
| 54 | error (EXIT_FAILURE, 0, "dladdr failed"); |
| 55 | |
| 56 | printf ("address of ref1 = %lx\n", |
| 57 | (unsigned long int) DL_LOOKUP_ADDRESS (sym)); |
| 58 | printf ("ret = %d\n", ret); |
| 59 | printf ("info.dli_fname = %p (\"%s\")\n", info.dli_fname, info.dli_fname); |
| 60 | printf ("info.dli_fbase = %p\n", info.dli_fbase); |
| 61 | printf ("info.dli_sname = %p (\"%s\")\n", info.dli_sname, info.dli_sname); |
| 62 | printf ("info.dli_saddr = %p\n", info.dli_saddr); |
| 63 | |
| 64 | if (info.dli_fname == NULL) |
| 65 | error (EXIT_FAILURE, 0, "dli_fname is NULL"); |
| 66 | if (info.dli_fbase == NULL) |
| 67 | error (EXIT_FAILURE, 0, "dli_fbase is NULL"); |
| 68 | if (info.dli_sname == NULL) |
| 69 | error (EXIT_FAILURE, 0, "dli_sname is NULL"); |
| 70 | if (info.dli_saddr == NULL) |
| 71 | error (EXIT_FAILURE, 0, "dli_saddr is NULL"); |
| 72 | |
| 73 | dlclose (handle); |
| 74 | |
| 75 | return 0; |
| 76 | } |
| 77 | |
| 78 | |
| 79 | #include "../test-skeleton.c" |