| 1 | /* Test unrelated dlopen after dlopen failure involving NODELETE. |
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| 2 | Copyright (C) 2019-2022 Free Software Foundation, Inc. |
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| 3 | This file is part of the GNU C Library. |
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| 4 | |
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| 5 | The GNU C Library is free software; you can redistribute it and/or |
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| 6 | modify it under the terms of the GNU Lesser General Public |
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| 7 | License as published by the Free Software Foundation; either |
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| 8 | version 2.1 of the License, or (at your option) any later version. |
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| 9 | |
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| 10 | The GNU C Library is distributed in the hope that it will be useful, |
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 13 | Lesser General Public License for more details. |
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| 14 | |
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| 15 | You should have received a copy of the GNU Lesser General Public |
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| 16 | License along with the GNU C Library; if not, see |
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| 17 | <https://www.gnu.org/licenses/>. */ |
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| 18 | |
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| 19 | #include <dlfcn.h> |
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| 20 | #include <errno.h> |
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| 21 | #include <gnu/lib-names.h> |
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| 22 | #include <stddef.h> |
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| 23 | #include <stdio.h> |
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| 24 | #include <string.h> |
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| 25 | #include <support/check.h> |
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| 26 | #include <support/xdlfcn.h> |
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| 27 | |
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| 28 | static int |
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| 29 | do_test (void) |
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| 30 | { |
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| 31 | TEST_VERIFY (dlsym (NULL, "no_delete_mod_function" ) == NULL); |
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| 32 | |
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| 33 | /* This is expected to fail because of the missing dependency. */ |
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| 34 | puts (s: "info: attempting to load tst-dlopenfailmod1.so" ); |
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| 35 | TEST_VERIFY (dlopen ("tst-dlopenfailmod1.so" , RTLD_LAZY) == NULL); |
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| 36 | const char *message = dlerror (); |
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| 37 | TEST_COMPARE_STRING (message, |
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| 38 | "tst-dlopenfail-missingmod.so:" |
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| 39 | " cannot open shared object file:" |
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| 40 | " No such file or directory" ); |
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| 41 | |
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| 42 | /* Open a small shared object. With a dangling GL (dl_initfirst) |
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| 43 | pointer, this is likely to crash because there is no longer any |
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| 44 | mapped text segment there (bug 25396). */ |
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| 45 | |
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| 46 | puts (s: "info: attempting to load tst-dlopenfailmod3.so" ); |
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| 47 | xdlclose (handle: xdlopen (filename: "tst-dlopenfailmod3.so" , RTLD_NOW)); |
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| 48 | |
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| 49 | return 0; |
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| 50 | } |
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| 51 | |
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| 52 | /* Do not perturb the dangling link map. With M_PERTURB, the link map |
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| 53 | appears to have l_init_called set, so there are no constructor |
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| 54 | calls and no crashes. */ |
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| 55 | #define TEST_NO_MALLOPT |
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| 56 | #include <support/test-driver.c> |
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| 57 | |
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