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glibc/dlfcn/tst-dladdr.c
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/* Test for dladdr. | |
Copyright (C) 2000-2016 Free Software Foundation, Inc. | |
This file is part of the GNU C Library. | |
Contributed by Volkmar Sieh <vs@caldera.de> and Andreas Jaeger <aj@suse.de>. | |
The GNU C Library is free software; you can redistribute it and/or | |
modify it under the terms of the GNU Lesser General Public | |
License as published by the Free Software Foundation; either | |
version 2.1 of the License, or (at your option) any later version. | |
The GNU C Library 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 | |
Lesser General Public License for more details. | |
You should have received a copy of the GNU Lesser General Public | |
License along with the GNU C Library; if not, see | |
<http://www.gnu.org/licenses/>. */ | |
#include <dlfcn.h> | |
#include <errno.h> | |
#include <error.h> | |
#include <stdio.h> | |
#include <stdlib.h> | |
#include <string.h> | |
#include <ldsodefs.h> | |
#define TEST_FUNCTION do_test () | |
extern int do_test (void); | |
int | |
do_test (void) | |
{ | |
void *handle; | |
int (*sym) (void); /* We load ref1 from glreflib1.c. */ | |
Dl_info info; | |
int ret; | |
handle = dlopen ("glreflib1.so", RTLD_NOW); | |
if (handle == NULL) | |
error (EXIT_FAILURE, 0, "cannot load: glreflib1.so"); | |
sym = dlsym (handle, "ref1"); | |
if (sym == NULL) | |
error (EXIT_FAILURE, 0, "dlsym failed"); | |
memset (&info, 0, sizeof (info)); | |
ret = dladdr (sym, &info); | |
if (ret == 0) | |
error (EXIT_FAILURE, 0, "dladdr failed"); | |
printf ("address of ref1 = %lx\n", | |
(unsigned long int) DL_LOOKUP_ADDRESS (sym)); | |
printf ("ret = %d\n", ret); | |
printf ("info.dli_fname = %p (\"%s\")\n", info.dli_fname, info.dli_fname); | |
printf ("info.dli_fbase = %p\n", info.dli_fbase); | |
printf ("info.dli_sname = %p (\"%s\")\n", info.dli_sname, info.dli_sname); | |
printf ("info.dli_saddr = %p\n", info.dli_saddr); | |
if (info.dli_fname == NULL) | |
error (EXIT_FAILURE, 0, "dli_fname is NULL"); | |
if (info.dli_fbase == NULL) | |
error (EXIT_FAILURE, 0, "dli_fbase is NULL"); | |
if (info.dli_sname == NULL) | |
error (EXIT_FAILURE, 0, "dli_sname is NULL"); | |
if (info.dli_saddr == NULL) | |
error (EXIT_FAILURE, 0, "dli_saddr is NULL"); | |
dlclose (handle); | |
return 0; | |
} | |
#include "../test-skeleton.c" |