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#include <dlfcn.h>
#include <mcheck.h>
#include <stdio.h>
#include <stdlib.h>
typedef int (*fn)(void);
#define CHUNKS 1024
#define REPEAT 64
int
main (void)
{
void *h1;
void *h2;
fn **foopp;
fn bar, baz;
int i, j;
int n;
void *allocs[REPEAT][CHUNKS];
mtrace ();
/* Open the two objects. */
h1 = dlopen ("reldep6mod3.so", RTLD_LAZY);
if (h1 == NULL)
{
printf ("cannot open reldep6mod3.so: %s\n", dlerror ());
exit (1);
}
foopp = dlsym (h1, "foopp");
if (foopp == NULL)
{
printf ("cannot get address of \"foopp\": %s\n", dlerror ());
exit (1);
}
n = (**foopp) ();
if (n != 20)
{
printf ("(**foopp)() return %d, not return 20\n", n);
exit (1);
}
h2 = dlopen ("reldep6mod4.so", RTLD_LAZY);
if (h2 == NULL)
{
printf ("cannot open reldep6mod4.so: %s\n", dlerror ());
exit (1);
}
baz = dlsym (h2, "baz");
if (baz == NULL)
{
printf ("cannot get address of \"baz\": %s\n", dlerror ());
exit (1);
}
if (baz () != 31)
{
printf ("baz() did not return 31\n");
exit (1);
}
if (dlclose (h1) != 0)
{
printf ("closing h1 failed: %s\n", dlerror ());
exit (1);
}
/* Clobber memory. */
for (i = 0; i < REPEAT; ++i)
for (j = 0; j < CHUNKS; ++j)
allocs[i][j] = calloc (1, j + 1);
bar = dlsym (h2, "bar");
if (bar == NULL)
{
printf ("cannot get address of \"bar\": %s\n", dlerror ());
exit (1);
}
if (bar () != 40)
{
printf ("bar() did not return 40\n");
exit (1);
}
baz = dlsym (h2, "baz");
if (baz == NULL)
{
printf ("cannot get address of \"baz\": %s\n", dlerror ());
exit (1);
}
if (baz () != 31)
{
printf ("baz() did not return 31\n");
exit (1);
}
for (i = 0; i < REPEAT; ++i)
for (j = 0; j < CHUNKS; ++j)
free (allocs[i][j]);
if (dlclose (h2) != 0)
{
printf ("closing h2 failed: %s\n", dlerror ());
exit (1);
}
return 0;
}
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