Exemple #1
0
static void
evacuate_pin_staging_area (void)
{
    int i;

    g_assert (pin_staging_area_index >= 0 && pin_staging_area_index <= PIN_STAGING_AREA_SIZE);

    if (pin_staging_area_index == 0)
        return;

    /*
     * The pinning addresses might come from undefined memory, this is normal. Since they
     * are used in lots of functions, we make the memory defined here instead of having
     * to add a supression for those functions.
     */
    VALGRIND_MAKE_MEM_DEFINED (pin_staging_area, pin_staging_area_index * sizeof (void*));

    sort_addresses (pin_staging_area, pin_staging_area_index);

    while (next_pin_slot + pin_staging_area_index > pin_queue_size)
        realloc_pin_queue ();

    pin_queue [next_pin_slot++] = pin_staging_area [0];
    for (i = 1; i < pin_staging_area_index; ++i) {
        void *p = pin_staging_area [i];
        if (p != pin_queue [next_pin_slot - 1])
            pin_queue [next_pin_slot++] = p;
    }

    g_assert (next_pin_slot <= pin_queue_size);

    pin_staging_area_index = 0;
}
Exemple #2
0
static void
pin_stage_ptr (void *ptr)
{
	/*very simple multiplicative hash function, tons better than simple and'ng */ 
	int hash_idx = ((mword)ptr * 1737350767) & (PIN_HASH_SIZE - 1);
	if (pin_hash_filter [hash_idx] == ptr)
		return;

	pin_hash_filter [hash_idx] = ptr;

	if (next_pin_slot >= pin_queue_size)
		realloc_pin_queue ();

	pin_queue [next_pin_slot++] = ptr;
}