581c785bf3
I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 7061 files FOO. I then removed trailing white space from math/tgmath.h, support/tst-support-open-dev-null-range.c, and sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following obscure pre-commit check failure diagnostics from Savannah. I don't know why I run into these diagnostics whereas others evidently do not. remote: *** 912-#endif remote: *** 913: remote: *** 914- remote: *** error: lines with trailing whitespace found ... remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
73 lines
2 KiB
C
73 lines
2 KiB
C
/* Verify that RTLD_NOLOAD works as expected.
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Copyright (C) 2016-2022 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 <stdio.h>
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#include <gnu/lib-names.h>
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static int
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do_test (void)
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{
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/* Test that no object is loaded with RTLD_NOLOAD. */
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void *h1 = dlopen (LIBM_SO, RTLD_LAZY | RTLD_NOLOAD);
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if (h1 != NULL)
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{
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printf ("h1: DSO has been loaded while it should have not\n");
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return 1;
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}
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/* This used to segfault in some glibc versions. */
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void *h2 = dlopen (LIBM_SO, RTLD_LAZY | RTLD_NOLOAD | RTLD_NODELETE);
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if (h2 != NULL)
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{
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printf ("h2: DSO has been loaded while it should have not\n");
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return 1;
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}
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/* Test that loading an already loaded object returns the same. */
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void *h3 = dlopen (LIBM_SO, RTLD_LAZY);
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if (h3 == NULL)
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{
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printf ("h3: failed to open DSO: %s\n", dlerror ());
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return 1;
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}
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void *h4 = dlopen (LIBM_SO, RTLD_LAZY | RTLD_NOLOAD);
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if (h4 == NULL)
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{
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printf ("h4: failed to open DSO: %s\n", dlerror ());
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return 1;
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}
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if (h4 != h3)
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{
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printf ("h4: should return the same object\n");
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return 1;
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}
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/* Cleanup */
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if (dlclose (h3) != 0)
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{
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printf ("h3: dlclose failed: %s\n", dlerror ());
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return 1;
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}
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return 0;
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}
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#include <support/test-driver.c>
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