mirror of git://sourceware.org/git/glibc.git
57 lines
2.1 KiB
C
57 lines
2.1 KiB
C
/* Symbols with version hash zero should not match any version (bug 29190).
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Copyright (C) 2025 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 License as
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published by the Free Software Foundation; either version 2.1 of the
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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; see the file COPYING.LIB. If
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not, see <https://www.gnu.org/licenses/>. */
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#include <support/check.h>
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#include <support/xdlfcn.h>
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#include <stddef.h>
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#include <string.h>
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static int
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do_test (void)
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{
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void *handle = xdlopen ("tst-version-hash-zero-mod.so", RTLD_NOW);
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/* This used to crash because some struct r_found_version entries
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with hash zero did not have valid version strings. */
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TEST_VERIFY (xdlvsym (handle, "global_variable", "PPPPPPPPPPPP") != NULL);
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/* Consistency check. */
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TEST_VERIFY (xdlsym (handle, "global_variable")
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== xdlvsym (handle, "global_variable", "PPPPPPPPPPPP"));
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/* This symbol version is supposed to be missing. */
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TEST_VERIFY (dlvsym (handle, "global_variable", "OTHER_VERSION") == NULL);
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/* tst-version-hash-zero-refmod.so references
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global_variable@@OTHER_VERSION and is expected to fail to load.
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dlvsym sets the hidden flag during lookup. Relocation does not,
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so this exercises a different failure case. */
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TEST_VERIFY_EXIT (dlopen ("tst-version-hash-zero-refmod.so", RTLD_NOW)
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== NULL);
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const char *message = dlerror ();
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if (strstr (message,
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": undefined symbol: global_variable, version OTHER_VERSION")
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== NULL)
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FAIL_EXIT1 ("unexpected dlopen failure: %s", message);
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xdlclose (handle);
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return 0;
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}
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#include <support/test-driver.c>
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