+ fprintf(stderr, "Different byte (offset=%d) (%p - %p) in fragment %zu in block %zu\n", k, (char *)addr_frag1 + k, (char *)addr_frag2 + k, j, i); fflush(NULL);
+
+ pointer_align = (k / sizeof(void*)) * sizeof(void*);
+ address_pointed1 = *((void **)((char *)addr_frag1 + pointer_align));
+ address_pointed2 = *((void **)((char *)addr_frag2 + pointer_align));
+
+ fprintf(stderr, "Addresses pointed : %p - %p \n", address_pointed1, address_pointed2);
+
+
+ block_pointed1 = ((char*)address_pointed1 - (char*)((struct mdesc*)s_heap)->heapbase) / BLOCKSIZE + 1;
+ block_pointed2 = ((char*)address_pointed2 - (char*)((struct mdesc*)s_heap)->heapbase) / BLOCKSIZE + 1;
+
+ fprintf(stderr, "Blocks pointed : %d - %d\n", block_pointed1, block_pointed2);
+
+ if((char *) address_pointed1 < (char*)((struct mdesc*)s_heap)->heapbase || block_pointed1 > mdp1->heapsize || block_pointed1 < 1 || (char *) address_pointed2 < (char*)((struct mdesc*)s_heap)->heapbase || block_pointed2 > mdp2->heapsize || block_pointed2 < 1) {
+ fprintf(stderr, "Unknown pointer(s) ! \n");
+ fflush(NULL);
+ distance++;
+ continue;
+ }
+
+ addr_block_pointed1 = ((void*) (((ADDR2UINT((size_t)block_pointed1)) - 1) * BLOCKSIZE + (char*)heapbase1));
+ addr_block_pointed2 = ((void*) (((ADDR2UINT((size_t)block_pointed2)) - 1) * BLOCKSIZE + (char*)heapbase2));
+
+ fprintf(stderr, "Addr block pointed : %p - %p\n", addr_block_pointed1, addr_block_pointed2);
+
+ if(heapinfo1[block_pointed1].type == heapinfo2[block_pointed2].type){
+
+ if(heapinfo1[block_pointed1].type == 0){ // Large block
+
+ if(heapinfo1[block_pointed1].busy_block.busy_size == heapinfo2[block_pointed2].busy_block.busy_size){
+
+ if(memcmp(addr_block_pointed1, addr_block_pointed2, heapinfo1[block_pointed1].busy_block.busy_size) != 0){
+ distance++;
+ }else{
+ fprintf(stderr, "False difference detected\n");
+ }
+
+ }else{
+ distance++;
+ }
+
+ }else{ // Fragmented block
+
+ frag_pointed1 = ((uintptr_t) (ADDR2UINT (address_pointed1) % (BLOCKSIZE))) >> ((struct mdesc*)s_heap)->heapinfo[block_pointed1].type;
+ frag_pointed2 = ((uintptr_t) (ADDR2UINT (address_pointed2) % (BLOCKSIZE))) >> ((struct mdesc*)s_heap)->heapinfo[block_pointed2].type;
+
+ fprintf(stderr, "Fragments pointed : %d - %d\n", frag_pointed1, frag_pointed2);
+
+ addr_frag_pointed1 = (char*)addr_block_pointed1 + (frag_pointed1 * (int)pow(2, heapinfo1[block_pointed1].type));
+ addr_frag_pointed2 = (char*)addr_block_pointed2 + (frag_pointed2 * (int)pow(2, heapinfo2[block_pointed2].type));
+
+ fprintf(stderr, "Addr frag pointed : %p - %p\n", addr_frag_pointed1, addr_frag_pointed2);
+
+ fprintf(stderr, "Size used in fragments pointed : %d - %d\n", heapinfo1[block_pointed1].busy_frag.frag_size[frag_pointed1], heapinfo2[block_pointed2].busy_frag.frag_size[frag_pointed2]);
+
+ if(heapinfo1[block_pointed1].busy_frag.frag_size[frag_pointed1] == heapinfo2[block_pointed2].busy_frag.frag_size[frag_pointed2]){
+
+ if(memcmp(addr_frag_pointed1, addr_frag_pointed2, heapinfo1[block_pointed1].busy_frag.frag_size[frag_pointed1]) != 0){
+ distance++;
+ }else{
+ fprintf(stderr, "False difference detected\n");
+ }
+
+ }else{
+ distance ++;
+ }
+ }
+
+ }else{
+
+ if(((heapinfo1[block_pointed1].type == 0) && (heapinfo2[block_pointed2].type != 0)) || ((heapinfo1[block_pointed1].type != 0) && (heapinfo2[block_pointed2].type == 0))){
+ fprintf(stderr, "Pointers on blocks with different types \n");
+ distance++;
+ }else{
+
+ frag_pointed1 = ((uintptr_t) (ADDR2UINT (address_pointed1) % (BLOCKSIZE))) >> ((struct mdesc*)s_heap)->heapinfo[block_pointed1].type;
+ frag_pointed2 = ((uintptr_t) (ADDR2UINT (address_pointed2) % (BLOCKSIZE))) >> ((struct mdesc*)s_heap)->heapinfo[block_pointed2].type;
+
+ fprintf(stderr, "Fragments pointed : %d - %d\n", frag_pointed1, frag_pointed2);
+
+ addr_frag_pointed1 = (char*)addr_block_pointed1 + (frag_pointed1 * (int)pow(2, heapinfo1[block_pointed1].type));
+ addr_frag_pointed2 = (char*)addr_block_pointed2 + (frag_pointed2 * (int)pow(2, heapinfo2[block_pointed2].type));
+
+ fprintf(stderr, "Addr frag pointed : %p - %p\n", addr_frag_pointed1, addr_frag_pointed2);
+
+ fprintf(stderr, "Size used in fragments pointed : %d - %d\n", heapinfo1[block_pointed1].busy_frag.frag_size[frag_pointed1], heapinfo2[block_pointed2].busy_frag.frag_size[frag_pointed2]);
+
+ if(heapinfo1[block_pointed1].busy_frag.frag_size[frag_pointed1] == heapinfo2[block_pointed2].busy_frag.frag_size[frag_pointed2]){
+
+ if(memcmp(addr_frag_pointed1, addr_frag_pointed2, heapinfo1[block_pointed1].busy_frag.frag_size[frag_pointed1]) != 0){
+ distance++;
+ }else{
+ fprintf(stderr, "False difference detected\n");
+ }
+
+ }else{
+ distance ++;
+ }
+ }
+
+ }
+ }
+
+ }
+
+ if(distance > 0){
+ fprintf(stderr,"\nDifferent data in fragment %zu (size = %zu, size used = %hu) in block %zu \n", j, frag_size, heapinfo1[i].busy_frag.frag_size[j], i);
+ fprintf(stderr, "Hamming distance between fragments : %d\n", distance);
+ mmalloc_backtrace_fragment_display(heapinfo1, i, j);
+ mmalloc_backtrace_fragment_display(heapinfo2, i, j);
+ fprintf(stderr, "\n");
+ errors++;
+ total_distance += distance;
+
+ }
+
+ }
+ }
+
+ i++;