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81 lines
1.9 KiB
C
81 lines
1.9 KiB
C
/* Test for dependency tracking added by relocations.
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Copyright (C) 2000-2020 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library 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 GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <dlfcn.h>
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#include <error.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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static void *
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load (const char *name)
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{
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void *d = dlopen (name, RTLD_LAZY | RTLD_GLOBAL);
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if (d == NULL)
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error (EXIT_FAILURE, errno, "cannot load `%s'", name);
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return d;
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}
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#define TEST_FUNCTION do_test ()
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extern int do_test (void);
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int
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do_test (void)
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{
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void *d1;
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void *d2;
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int (*f) (void);
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d1 = load ("glreflib1.so");
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d2 = load ("glreflib2.so");
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f = dlsym (d2, "ref2");
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if (f == NULL)
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error (EXIT_FAILURE, errno, "cannot get pointer to `%s'", "ref2");
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if (f () != 42)
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error (EXIT_FAILURE, 0, "wrong result from `%s'", "ref2");
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puts ("Correct result in first call");
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fflush (stdout);
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/* Now unload the first file. */
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dlclose (d1);
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puts ("About to call the second time");
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fflush (stdout);
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/* Try calling the function again. */
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if (f () != 42)
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error (EXIT_FAILURE, 0, "wrong result from `%s' (second call)", "ref2");
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puts ("Second call succeeded!");
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fflush (stdout);
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dlclose (d2);
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puts ("glreflib2 also closed");
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fflush (stdout);
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return 0;
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}
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#include "../test-skeleton.c"
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