mac_label_set
void mac_label_set(struct label *l, int slot, intptr_t v);
#define SLOT_SET(l, val) mac_label_set((l), biba_slot, (uintptr_t)(val))
mac_label_set((l), mac_grantbylabel_slot, (v))
#define SLOT_SET(l, val) mac_label_set((l), lomac_slot, (uintptr_t)(val))
#define PSLOT_SET(l, val) mac_label_set((l), lomac_slot, (uintptr_t)(val))
#define SLOT_SET(l, val) mac_label_set((l), mls_slot, (uintptr_t)(val))
#define SLOT_SET(l, v) mac_label_set((l), partition_slot, (v))
#define SLOT_SET(x, v) mac_label_set((x), test_slot, (v))
mac_label_set((l), mac_veriexec_slot, (v))