glibc/elf/tst-nodelete2.c

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#include "../dlfcn/dlfcn.h"
#include <stdio.h>
#include <stdlib.h>
#include <gnu/lib-names.h>
static int
do_test (void)
{
int result = 0;
printf ("\nOpening pthread library.\n");
void *pthread = dlopen (LIBPTHREAD_SO, RTLD_LAZY);
/* This is a test for correct DF_1_NODELETE clearing when dlopen failure
happens. We should clear DF_1_NODELETE for failed library only, because
doing this for others (e.g. libpthread) might cause them to be unloaded,
that may lead to some global references (e.g. __rtld_lock_unlock) to be
broken. The dlopen should fail because of undefined symbols in shared
library, that cause DF_1_NODELETE to be cleared. For libpthread, this
flag should be set, because if not, SIGSEGV will happen in dlclose. */
if (dlopen ("tst-nodelete2mod.so", RTLD_NOW) != NULL)
{
printf ("Unique symbols test failed\n");
result = 1;
}
if (pthread)
dlclose (pthread);
if (result == 0)
printf ("SUCCESS\n");
return result;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"