7 u32 derived_root_count;
8 u32 return_address_count;
10 cell callsite_bitmap_size() {
11 return scrub_d_count + scrub_r_count + gc_root_count;
14 cell total_bitmap_size() {
15 return return_address_count * callsite_bitmap_size();
18 cell total_bitmap_bytes() { return ((total_bitmap_size() + 7) / 8); }
20 u32* return_addresses() { return (u32*)this - return_address_count; }
22 u32* base_pointer_map() {
23 return return_addresses() - return_address_count * derived_root_count;
26 u8* gc_info_bitmap() {
27 return (u8*)base_pointer_map() - total_bitmap_bytes();
30 cell callsite_scrub_d(cell index) { return index * scrub_d_count; }
32 cell callsite_scrub_r(cell index) {
33 return return_address_count * scrub_d_count + index * scrub_r_count;
36 cell callsite_gc_roots(cell index) {
37 return return_address_count * scrub_d_count +
38 return_address_count * scrub_r_count + index * gc_root_count;
41 u32 lookup_base_pointer(cell index, cell derived_root) {
42 return base_pointer_map()[index * derived_root_count + derived_root];
45 cell return_address_index(cell return_address);