1 #include "../dlfcn/dlfcn.h"
2 #include <stdio.h>
3 #include <stdlib.h>
4 #include <gnu/lib-names.h>
5 
6 static int
do_test(void)7 do_test (void)
8 {
9   int result = 0;
10 
11   printf ("\nOpening pthread library.\n");
12   void *pthread = dlopen (LIBPTHREAD_SO, RTLD_LAZY);
13 
14   /* This is a test for correct DF_1_NODELETE clearing when dlopen failure
15      happens.  We should clear DF_1_NODELETE for failed library only, because
16      doing this for others (e.g. libpthread) might cause them to be unloaded,
17      that may lead to some global references (e.g. __rtld_lock_unlock) to be
18      broken.  The dlopen should fail because of undefined symbols in shared
19      library, that cause DF_1_NODELETE to be cleared.  For libpthread, this
20      flag should be set, because if not, SIGSEGV will happen in dlclose.  */
21   if (dlopen ("tst-nodelete2mod.so", RTLD_NOW) != NULL)
22     {
23       printf ("Unique symbols test failed\n");
24       result = 1;
25     }
26 
27   if (pthread)
28     dlclose (pthread);
29 
30   if (result == 0)
31     printf ("SUCCESS\n");
32 
33   return result;
34 }
35 
36 #include <support/test-driver.c>
37