/* Check compatibility of CET-enabled executable with dlopened legacy shared object. Copyright (C) 2018-2020 Free Software Foundation, Inc. This file is part of the GNU C Library. 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 . */ #include #include #include #include #include static int do_test (void) { static const char modname[] = "tst-cet-legacy-mod-4.so"; int (*fp) (void); void *h; h = dlopen (modname, RTLD_LAZY); if (h == NULL) { const char *err = dlerror (); if (!strstr (err, "rebuild shared object with IBT support enabled")) FAIL_EXIT1 ("incorrect dlopen '%s' error: %s\n", modname, err); return 0; } fp = dlsym (h, "test"); if (fp == NULL) FAIL_EXIT1 ("cannot get symbol 'test': %s\n", dlerror ()); if (fp () != 0) FAIL_EXIT1 ("test () != 0"); dlclose (h); return 0; } #include