That way we can detect if someone attempts to allocate a negative size
and abort instead of just returning NULL and segfaulting later.
#endif
void *
-fence_malloc (uint32_t len)
+fence_malloc (int64_t len)
{
unsigned long page_size = getpagesize();
unsigned long page_mask = page_size - 1;
uint8_t *payload;
uint8_t *addr;
+ if (len < 0)
+ abort();
+
addr = mmap (NULL, n_bytes, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS,
-1, 0);
if (addr == MAP_FAILED)
{
- printf ("mmap failed on %u %u\n", len, n_bytes);
+ printf ("mmap failed on %lld %u\n", (long long int)len, n_bytes);
return NULL;
}
* so that out-of-bounds access will cause segfaults
*/
void *
-fence_malloc (uint32_t len);
+fence_malloc (int64_t len);
void
fence_free (void *data);