buddy_alloc
void __arena *buddy_alloc(struct buddy __arena *buddy, size_t size);
blob = buddy_alloc(&buddy, alloc_size);
mem = buddy_alloc(&buddy, alloc_size);
mem = buddy_alloc(&buddy, alloc_size);
mem = buddy_alloc(&buddy, sz);
ptrs[i] = buddy_alloc(&buddy, alignment_sizes[i]);
mem = buddy_alloc(&buddy, alloc_sizes[i]);
mem = buddy_alloc(&buddy, alloc_free_sizes[(i * 5) % 8]);
return buddy_alloc(&buddy, size);