| /* Verify that an already opened DSO opened agained with RTLD_NODELETE actually |
| sets the NODELETE flag. |
| |
| Copyright (C) 2015-2018 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 |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include <dlfcn.h> |
| #include <stdio.h> |
| |
| int |
| do_test (void) |
| { |
| void *h1 = dlopen ("$ORIGIN/tst-nodelete-opened-lib.so", RTLD_LAZY); |
| if (h1 == NULL) |
| { |
| printf ("h1: failed to open DSO: %s\n", dlerror ()); |
| return 1; |
| } |
| |
| void *h2 = dlopen ("$ORIGIN/tst-nodelete-opened-lib.so", |
| RTLD_LAZY | RTLD_NODELETE); |
| if (h2 == NULL) |
| { |
| printf ("h2: failed to open DSO: %s\n", dlerror ()); |
| return 1; |
| } |
| |
| int *foo = dlsym (h2, "foo_var"); |
| if (foo == NULL) |
| { |
| printf ("failed to load symbol foo_var: %s\n", dlerror ()); |
| return 1; |
| } |
| |
| if (dlclose (h1) != 0) |
| { |
| printf ("h1: dlclose failed: %s\n", dlerror ()); |
| return 1; |
| } |
| |
| if (dlclose (h2) != 0) |
| { |
| printf ("h2: dlclose failed: %s\n", dlerror ()); |
| return 1; |
| } |
| |
| /* This FOO dereference will crash with a segfault if the DSO was |
| unloaded. */ |
| printf ("foo == %d\n", *foo); |
| |
| return 0; |
| } |
| |
| #include <support/test-driver.c> |
