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#include <dlfcn.h>
#include <stdio.h>
#include <stdlib.h>
#include <link.h>
static int
do_test (void)
{
static const char modname[] = "tst-tlsmod2.so";
int result = 0;
int *foop;
int *foop2;
int (*fp) (int, int *);
void *h;
int i;
int modid = -1;
for (i = 0; i < 10; ++i)
{
h = dlopen (modname, RTLD_LAZY);
if (h == NULL)
{
printf ("cannot open '%s': %s\n", modname, dlerror ());
exit (1);
}
/* Dirty test code here: we peek into a private data structure.
We make sure that the module gets assigned the same ID every
time. The value of the first round is used. */
if (modid == -1)
modid = ((struct link_map *) h)->l_tls_modid;
else if (((struct link_map *) h)->l_tls_modid != modid)
{
printf ("round %d: modid now %zd, initially %d\n",
i, ((struct link_map *) h)->l_tls_modid, modid);
result = 1;
}
foop = dlsym (h, "foo");
if (foop == NULL)
{
printf ("cannot get symbol 'foo': %s\n", dlerror ());
exit (1);
}
*foop = 42 + i;
fp = dlsym (h, "in_dso");
if (fp == NULL)
{
printf ("cannot get symbol 'in_dso': %s\n", dlerror ());
exit (1);
}
result |= fp (42 + i, foop);
foop2 = dlsym (h, "foo");
if (foop2 == NULL)
{
printf ("cannot get symbol 'foo' the second time: %s\n", dlerror ());
exit (1);
}
if (foop != foop2)
{
puts ("address of 'foo' different the second time");
result = 1;
}
else if (*foop != 16)
{
puts ("foo != 16");
result = 1;
}
dlclose (h);
}
return result;
}
#include <support/test-driver.c>
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