devman initial implementation

src/sys/mm/alloc.c

@@ -1,5 +1,6 @@
 #include <kernel/alloc.h>
 #include <kernel/slab.h>
+#include <string.h>
 
 void* alloc(size_t size){
 	return slab_alloc(size);
@@ -12,3 +13,16 @@ void free(void* addr){
 void alloc_init(){
 	slab_init();
 }
+
+void* realloc(void* addr, size_t size){
+	void* tmp = alloc(size);
+	if(!tmp)
+		return NULL;
+	
+	memcpy(tmp, addr, size);
+
+	free(addr);
+	
+	return tmp;
+
+}