X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/c7b463c9c17665403d001fc59cb649551e93d950..7ee955e723c9098d76dab196c47c310fd0b2bac4:/src/xbt/mmalloc/mm_diff.c

diff --git a/src/xbt/mmalloc/mm_diff.c b/src/xbt/mmalloc/mm_diff.c
index b1d54d0a17..96405236a7 100644
--- a/src/xbt/mmalloc/mm_diff.c
+++ b/src/xbt/mmalloc/mm_diff.c
@@ -91,7 +91,7 @@ void mmalloc_backtrace_block_display(xbt_mheap_t mdp, size_t block){
 }
 
 void mmalloc_backtrace_fragment_display(xbt_mheap_t mdp, size_t block, size_t frag){
-  
+
   xbt_ex_t e;
 
   memcpy(&e.bt,&(mdp->heapinfo[block].busy_frag.bt[frag]),sizeof(void*)*XBT_BACKTRACE_SIZE);
@@ -136,13 +136,10 @@ int mmalloc_compare_mdesc(struct mdesc *mdp1, struct mdesc *mdp2){
   }
 
   void* s_heap = (char *)mmalloc_get_current_heap() - STD_HEAP_SIZE - getpagesize();
-    
+
   void *heapbase1 = (char *)mdp1 + BLOCKSIZE;
   void *heapbase2 = (char *)mdp2 + BLOCKSIZE;
 
-  void * breakval1 = (char *)mdp1 + ((char *)mdp1->breakval - (char *)s_heap);
-  void * breakval2 = (char *)mdp2 + ((char *)mdp2->breakval - (char *)s_heap);
-
   size_t i, j;
   void *addr_block1, *addr_block2, *addr_frag1, *addr_frag2;
   size_t frag_size;
@@ -156,9 +153,11 @@ int mmalloc_compare_mdesc(struct mdesc *mdp1, struct mdesc *mdp2){
   int pointer_align;
   void *address_pointed1, *address_pointed2;
 
-  int block_pointed1, block_pointed2;
+  int block_pointed1, block_pointed2, frag_pointed1, frag_pointed2;
   void *addr_block_pointed1, *addr_block_pointed2;
 
+  int pointer1 = 0, pointer2 = 0;
+
   /* Check busy blocks*/
 
   while(i < mdp1->heaplimit){
@@ -168,226 +167,392 @@ int mmalloc_compare_mdesc(struct mdesc *mdp1, struct mdesc *mdp2){
       errors++;
     }
 
-    addr_block1 = (char*)heapbase1 + ((i-1)*BLOCKSIZE);
-    xbt_assert(addr_block1 < breakval1, "Block address out of heap memory used");
-
-    addr_block2 = (char*)heapbase2 + ((i-1)*BLOCKSIZE);
-    xbt_assert(addr_block2 < breakval2, "Block address out of heap memory used");
+    /* Get address of block i in each heap */
+    addr_block1 = ((void*) (((ADDR2UINT(i)) - 1) * BLOCKSIZE + (char*)heapbase1));
+    addr_block2 = ((void*) (((ADDR2UINT(i)) - 1) * BLOCKSIZE + (char*)heapbase2));
 
     if(mdp1->heapinfo[i].type == 0){ /* busy large block */
 
       if(mdp1->heapinfo[i].busy_block.size != mdp2->heapinfo[i].busy_block.size){
-  fprintf(stderr,"Different size of a large cluster : %zu - %zu\n", mdp1->heapinfo[i].busy_block.size, mdp2->heapinfo[i].busy_block.size); 
-  fflush(NULL);
-  errors++;
-      } 
+        fprintf(stderr,"Different size of a large cluster : %zu - %zu\n", mdp1->heapinfo[i].busy_block.size, mdp2->heapinfo[i].busy_block.size); 
+        fflush(NULL);
+        errors++;
+      }
 
       if(mdp1->heapinfo[i].busy_block.busy_size != mdp2->heapinfo[i].busy_block.busy_size){
-  fprintf(stderr,"Different busy_size of a large cluster : %zu - %zu\n", mdp1->heapinfo[i].busy_block.busy_size, mdp2->heapinfo[i].busy_block.busy_size); 
-  fflush(NULL);
-  errors++;
-      } 
+        fprintf(stderr,"Different busy_size of a large cluster : %zu - %zu\n", mdp1->heapinfo[i].busy_block.busy_size, mdp2->heapinfo[i].busy_block.busy_size); 
+        fflush(NULL);
+        errors++;
+      }
 
-  
       /* Hamming distance on different blocks */
       distance = 0;
 
-      //for(k=0;k<mdp1->heapinfo[i].busy_block.size * BLOCKSIZE;k++){
+
       for(k=0;k<mdp1->heapinfo[i].busy_block.busy_size;k++){
-  if((((char *)addr_block1) + k != 0) && (((char *)addr_block2) + k != 0)){
-    if(memcmp(((char *)addr_block1) + k, ((char *)addr_block2) + k, 1) != 0){
-      fprintf(stderr, "Different byte (offset=%d) (%p - %p) in block %zu\n", k, (char *)addr_block1 + k, (char *)addr_block2 + k, i); fflush(NULL);
-      pointer_align = (k / sizeof(void*)) * sizeof(void*);
-      address_pointed1 = *((void **)((char *)addr_block1 + pointer_align));
-      address_pointed2 = *((void **)((char *)addr_block2 + pointer_align));           
-      if(((address_pointed1 > (void *)s_heap) && (address_pointed1 < mdp1->breakval)) && ((address_pointed2 > (void *)s_heap) && (address_pointed2 < mdp2->breakval))){
-        block_pointed1 = ((char*)address_pointed1 - (char*)((struct mdesc*)s_heap)->heapbase) % BLOCKSIZE;
-        block_pointed2 = ((char*)address_pointed2 - (char*)((struct mdesc*)s_heap)->heapbase) % BLOCKSIZE;
-        //fprintf(stderr, "Blocks pointed : %d - %d\n", block_pointed1, block_pointed2);
-        if((block_pointed1 == 0) && (block_pointed2 == 0)){
-    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; 
-    if(mdp1->heapinfo[block_pointed1].type == mdp2->heapinfo[block_pointed2].type){
-      if(mdp1->heapinfo[block_pointed1].type == 0){ // Large block
-        if(mdp1->heapinfo[block_pointed1].busy_block.busy_size == mdp2->heapinfo[block_pointed2].busy_block.busy_size){
-          addr_block_pointed1 = (char*)heapbase1 + ((block_pointed1 - 1)*BLOCKSIZE);
-          addr_block_pointed2 = (char*)heapbase2 + ((block_pointed2 - 1)*BLOCKSIZE);
-          if(memcmp(addr_block_pointed1, addr_block_pointed2, mdp1->heapinfo[block_pointed1].busy_block.busy_size) != 0){
-      distance++;
+
+        if(memcmp(((char *)addr_block1) + k, ((char *)addr_block2) + k, 1) != 0){
+
+          fprintf(stderr, "Different byte (offset=%d) (%p - %p) in block %zu\n", k, (char *)addr_block1 + k, (char *)addr_block2 + k, i); fflush(NULL);
+          
+          /* Check if pointer difference */
+          pointer_align = (k >> sizeof(void*)) * sizeof(void*);
+          address_pointed1 = *((void **)((char *)addr_block1 + pointer_align));
+          address_pointed2 = *((void **)((char *)addr_block2 + 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 ! \n");
+            fflush(NULL);
+            distance++;
+            continue;
+            }*/
+
+          if(((char *) address_pointed1 > (char*)((struct mdesc*)s_heap)->heapbase) && (block_pointed1 < mdp1->heapsize) && (block_pointed1 >= 1)){
+            addr_block_pointed1 = ((void*) (((ADDR2UINT((size_t)block_pointed1)) - 1) * BLOCKSIZE + (char*)heapbase1));
+            if(((char *) address_pointed2 > (char*)((struct mdesc*)s_heap)->heapbase) && (block_pointed2 < mdp2->heapsize) && (block_pointed2 >= 1)){
+              addr_block_pointed2 = ((void*) (((ADDR2UINT((size_t)block_pointed2)) - 1) * BLOCKSIZE + (char*)heapbase2));
+            }else{
+              addr_block_pointed2 = addr_block2;
+              block_pointed2 = i;
+            }
           }else{
-      fprintf(stderr, "False difference detected\n");
+            addr_block_pointed1 = addr_block1;
+            block_pointed1 = i;
+            if(((char *) address_pointed2 > (char*)((struct mdesc*)s_heap)->heapbase) && (block_pointed2 < mdp2->heapsize) && (block_pointed2 >= 1)){
+              addr_block_pointed2 = ((void*) (((ADDR2UINT((size_t)block_pointed2)) - 1) * BLOCKSIZE + (char*)heapbase2));
+            }else{
+              fprintf(stderr, "Unknown pointers ! \n");
+              fflush(NULL);
+              distance++;
+              continue;
+            }
           }
-        }else{
-          distance++;
-        }
-      }else{ // Fragmented block
-        addr_block_pointed1 = (char*)mdp1 + ((char *)address_pointed1 - (char *)s_heap);
-        addr_block_pointed2 = (char*)mdp2 + ((char *)address_pointed2 - (char *)s_heap);
-        if(mdp1->heapinfo[block_pointed1].busy_frag.frag_size[0] == mdp2->heapinfo[block_pointed2].busy_frag.frag_size[0]){
-          if(memcmp(addr_block_pointed1, addr_block_pointed2, mdp1->heapinfo[block_pointed1].busy_frag.frag_size[0]) != 0){
-      fprintf(stderr, "Pointed fragments are different \n");
-      distance++;
+          
+          //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));
+          
+          if(mdp1->heapinfo[block_pointed1].type == mdp2->heapinfo[block_pointed2].type){
+            
+            if(mdp1->heapinfo[block_pointed1].type == 0){ // Large block
+              
+              if(mdp1->heapinfo[block_pointed1].busy_block.busy_size == mdp2->heapinfo[block_pointed2].busy_block.busy_size){
+                
+                if(memcmp(addr_block_pointed1, addr_block_pointed2, mdp1->heapinfo[block_pointed1].busy_block.busy_size) != 0){
+                  distance++;
+                }else{
+                  fprintf(stderr, "False difference detected\n");
+                }
+                
+              }else{
+                distance++;
+              }
+              
+            }else{ // Fragmented block
+              
+              if(pointer1)
+                frag_pointed1 = ((uintptr_t) (ADDR2UINT (address_pointed1) % (BLOCKSIZE))) >> mdp1->heapinfo[block_pointed1].type;
+              else
+                frag_pointed1 = -1;
+              if(pointer2)
+                frag_pointed2 = ((uintptr_t) (ADDR2UINT (address_pointed2) % (BLOCKSIZE))) >> mdp2->heapinfo[block_pointed2].type;
+              else
+                frag_pointed2 = -1;
+                            
+              fprintf(stderr, "Fragments pointed : %d - %d\n", frag_pointed1, frag_pointed2);
+              
+              if((frag_pointed1 < 0) || (frag_pointed1 > (BLOCKSIZE / pow( 2, mdp1->heapinfo[block_pointed1].type))) || (frag_pointed2 < 0) || (frag_pointed2 > (BLOCKSIZE / pow( 2, mdp2->heapinfo[block_pointed2].type)))){
+                fprintf(stderr, "Unknown pointer ! \n");
+                fflush(NULL);
+                distance++;
+                continue;
+              } 
+
+              fprintf(stderr, "Size used in fragments pointed : %d - %d\n", mdp1->heapinfo[block_pointed1].busy_frag.frag_size[frag_pointed1], mdp2->heapinfo[block_pointed2].busy_frag.frag_size[frag_pointed2]);  
+              
+              if(mdp1->heapinfo[block_pointed1].busy_frag.frag_size[frag_pointed1] == mdp2->heapinfo[block_pointed2].busy_frag.frag_size[frag_pointed2]){
+                
+                if(memcmp(addr_block_pointed1, addr_block_pointed2, mdp1->heapinfo[block_pointed1].busy_frag.frag_size[frag_pointed1]) != 0){
+                  distance++;
+                }else{
+                  fprintf(stderr, "False difference detected\n");
+                }
+                
+              }else{
+                distance ++;
+              }
+            }
+            
           }else{
-      fprintf(stderr, "False difference detected\n");
+
+            if(((mdp1->heapinfo[block_pointed1].type == 0) && (mdp2->heapinfo[block_pointed2].type != 0)) || ((mdp1->heapinfo[block_pointed1].type != 0) && (mdp2->heapinfo[block_pointed2].type == 0))){  
+              fprintf(stderr, "Pointers on blocks with different types \n");
+              distance++;
+            }else{
+              if(pointer1)
+                frag_pointed1 = ((uintptr_t) (ADDR2UINT (address_pointed1) % (BLOCKSIZE))) >> mdp1->heapinfo[block_pointed1].type;
+              else
+                frag_pointed1 = -1;
+              if(pointer2)
+                frag_pointed2 = ((uintptr_t) (ADDR2UINT (address_pointed2) % (BLOCKSIZE))) >> mdp2->heapinfo[block_pointed2].type;
+              else
+                frag_pointed2 = -1;
+              
+              fprintf(stderr, "Fragments pointed : %d - %d\n", frag_pointed1, frag_pointed2);
+              
+              if((frag_pointed1 < 0) || (frag_pointed1 > (BLOCKSIZE / pow( 2, mdp1->heapinfo[block_pointed1].type))) || (frag_pointed2 < 0) || (frag_pointed2 > (BLOCKSIZE / pow( 2, mdp2->heapinfo[block_pointed2].type)))){
+                fprintf(stderr, "Unknown pointer ! \n");
+                fflush(NULL);
+                distance++;
+                continue;
+              } 
+              
+              fprintf(stderr, "Size used in fragments pointed : %d - %d\n", mdp1->heapinfo[block_pointed1].busy_frag.frag_size[frag_pointed1], mdp2->heapinfo[block_pointed2].busy_frag.frag_size[frag_pointed2]); 
+              
+              if(mdp1->heapinfo[block_pointed1].busy_frag.frag_size[frag_pointed1] == mdp2->heapinfo[block_pointed2].busy_frag.frag_size[frag_pointed2]){
+                
+                if(memcmp(addr_block_pointed1, addr_block_pointed2, mdp1->heapinfo[block_pointed1].busy_frag.frag_size[frag_pointed1]) != 0){
+                  distance++;
+                }else{
+                  fprintf(stderr, "False difference detected\n");
+                }
+                
+              }else{
+                distance ++;
+              }
+            }
           }
-        }else{
-          fprintf(stderr, "Different size of pointed fragments\n");
-          distance ++;
         }
-      }
-    }else{
-      fprintf(stderr, "Pointers on blocks with different types \n");
-      distance++;
-    }
-    
-        }else{
-    /* FIXME : peut pointer vers le début d'un fragment mais dans un bloc */
-    fprintf(stderr, "Pointed addresses (%p - %p) not valid\n", address_pointed1, address_pointed2);
-    distance++;
-        }
-      }else{
-        fprintf(stderr, "Pointed addresses (%p - %p) not in std_heap\n", address_pointed1, address_pointed2);
-        distance++;
-      }
-      
-    }
-  }
+     
       }
 
 
       if(distance>0){
-  fprintf(stderr,"\nDifferent data in large block %zu (size = %zu (in blocks), busy_size = %zu (in bytes))\n", i, mdp1->heapinfo[i].busy_block.size, mdp1->heapinfo[i].busy_block.busy_size);
-  fflush(NULL);
-  fprintf(stderr, "Hamming distance between blocks : %d\n", distance);
-  mmalloc_backtrace_block_display(mdp1, i);
-  mmalloc_backtrace_block_display(mdp2, i);
-  fprintf(stderr, "\n");
-  errors++; 
-  total_distance += distance;
+        fprintf(stderr,"\nDifferent data in large block %zu (size = %zu (in blocks), busy_size = %zu (in bytes))\n", i, mdp1->heapinfo[i].busy_block.size, mdp1->heapinfo[i].busy_block.busy_size);
+        fflush(NULL);
+        fprintf(stderr, "Hamming distance between blocks : %d\n", distance);
+        mmalloc_backtrace_block_display(mdp1, i);
+        mmalloc_backtrace_block_display(mdp2, i);
+        fprintf(stderr, "\n");
+        errors++;
+        total_distance += distance;
       }
-    
-      
+
       i++;
-      
+
     }else{
-      
+
       if(mdp1->heapinfo[i].type > 0){ /* busy fragmented block */
 
-  if(mdp1->heapinfo[i].type != mdp2->heapinfo[i].type){
-    fprintf(stderr,"Different size of fragments in fragmented block %zu : %d - %d\n", i, mdp1->heapinfo[i].type, mdp2->heapinfo[i].type); fflush(NULL);
-    errors++;
-  }
+        if(mdp1->heapinfo[i].type != mdp2->heapinfo[i].type){
+          fprintf(stderr,"Different size of fragments in fragmented block %zu : %d - %d\n", i, mdp1->heapinfo[i].type, mdp2->heapinfo[i].type); fflush(NULL);
+          errors++;
+        }
 
-  if(mdp1->heapinfo[i].busy_frag.nfree != mdp2->heapinfo[i].busy_frag.nfree){
-    fprintf(stderr,"Different free fragments in fragmented block %zu : %zu - %zu\n", i, mdp1->heapinfo[i].busy_frag.nfree, mdp2->heapinfo[i].busy_frag.nfree); fflush(NULL);
-    errors++;
-  } 
-  
-  if(mdp1->heapinfo[i].busy_frag.first != mdp2->heapinfo[i].busy_frag.first){
-    fprintf(stderr,"Different busy_size of a large cluster : %zu - %zu\n", mdp1->heapinfo[i].busy_block.busy_size, mdp2->heapinfo[i].busy_block.busy_size); fflush(NULL);
-    errors++;
-  } 
+        if(mdp1->heapinfo[i].busy_frag.nfree != mdp2->heapinfo[i].busy_frag.nfree){
+          fprintf(stderr,"Different free fragments in fragmented block %zu : %zu - %zu\n", i, mdp1->heapinfo[i].busy_frag.nfree, mdp2->heapinfo[i].busy_frag.nfree); fflush(NULL);
+          errors++;
+        }
 
-  frag_size = pow(2, mdp1->heapinfo[i].type);
+        if(mdp1->heapinfo[i].busy_frag.first != mdp2->heapinfo[i].busy_frag.first){
+          fprintf(stderr,"Different busy_size of a large cluster : %zu - %zu\n", mdp1->heapinfo[i].busy_block.busy_size, mdp2->heapinfo[i].busy_block.busy_size); fflush(NULL);
+          errors++;
+        }
 
-  for(j=0; j< (BLOCKSIZE/frag_size); j++){
+        frag_size = pow(2, mdp1->heapinfo[i].type);
 
-    if(mdp1->heapinfo[i].busy_frag.frag_size[j] != mdp2->heapinfo[i].busy_frag.frag_size[j]){
-      fprintf(stderr,"Different busy_size for fragment %zu in block %zu : %hu - %hu\n", j, i, mdp1->heapinfo[i].busy_frag.frag_size[j], mdp2->heapinfo[i].busy_frag.frag_size[j]); fflush(NULL);
-      errors++;
-    }
+        for(j=0; j< (BLOCKSIZE/frag_size); j++){
 
-    if(mdp1->heapinfo[i].busy_frag.frag_size[j] > 0){
-      
-      addr_frag1 = (char *)addr_block1 + (j * frag_size);
-      xbt_assert(addr_frag1 < breakval1, "Fragment address out of heap memory used");
+          if(mdp1->heapinfo[i].busy_frag.frag_size[j] != mdp2->heapinfo[i].busy_frag.frag_size[j]){
+            fprintf(stderr,"Different busy_size for fragment %zu in block %zu : %hu - %hu\n", j, i, mdp1->heapinfo[i].busy_frag.frag_size[j], mdp2->heapinfo[i].busy_frag.frag_size[j]); fflush(NULL);
+            errors++;
+          }
 
-      addr_frag2 = (char *)addr_block2 + (j * frag_size);
-      xbt_assert(addr_frag1 < breakval1, "Fragment address out of heap memory used");
+          if(mdp1->heapinfo[i].busy_frag.frag_size[j] > 0){
+
+            addr_frag1 = (char *)addr_block1 + (j * frag_size);
+            addr_frag2 = (char *)addr_block2 + (j * frag_size);
+
+            /* Hamming distance on different blocks */
+            distance = 0;
+
+            for(k=0;k<mdp1->heapinfo[i].busy_frag.frag_size[j];k++){
+
+              if(memcmp(((char *)addr_frag1) + k, ((char *)addr_frag2) + k, 1) != 0){
+
+                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 ! \n");
+                  fflush(NULL);
+                  distance++;
+                  continue;
+                  }*/
+
+                if(((char *) address_pointed1 > (char*)((struct mdesc*)s_heap)->heapbase) && (block_pointed1 < mdp1->heapsize) && (block_pointed1 >= 1)){
+                  addr_block_pointed1 = ((void*) (((ADDR2UINT((size_t)block_pointed1)) - 1) * BLOCKSIZE + (char*)heapbase1));
+                  pointer1 = 1;
+                  if(((char *) address_pointed2 > (char*)((struct mdesc*)s_heap)->heapbase) && (block_pointed2 < mdp2->heapsize) && (block_pointed2 >= 1)){
+                    addr_block_pointed2 = ((void*) (((ADDR2UINT((size_t)block_pointed2)) - 1) * BLOCKSIZE + (char*)heapbase2));
+                    pointer2 = 1;
+                  }else{
+                    pointer2 = 0;
+                    addr_block_pointed2 = addr_block2;
+                    block_pointed2 = i;
+                  }
+                }else{
+                  addr_block_pointed1 = addr_block1;
+                  block_pointed1 = i;
+                  pointer1 = 0;
+                  if(((char *) address_pointed2 > (char*)((struct mdesc*)s_heap)->heapbase) && (block_pointed2 < mdp2->heapsize) && (block_pointed2 >= 1)){
+                    addr_block_pointed2 = ((void*) (((ADDR2UINT((size_t)block_pointed2)) - 1) * BLOCKSIZE + (char*)heapbase2));
+                    pointer2 = 1;
+                  }else{
+                    fprintf(stderr, "Unknown pointers ! \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));
+                
+                if(mdp1->heapinfo[block_pointed1].type == mdp2->heapinfo[block_pointed2].type){
+                  
+                  if(mdp1->heapinfo[block_pointed1].type == 0){ // Large block
+                    
+                    if(mdp1->heapinfo[block_pointed1].busy_block.busy_size == mdp2->heapinfo[block_pointed2].busy_block.busy_size){
+                      
+                      if(memcmp(addr_block_pointed1, addr_block_pointed2, mdp1->heapinfo[block_pointed1].busy_block.busy_size) != 0){
+                        distance++;
+                      }else{
+                        fprintf(stderr, "False difference detected\n");
+                      }
+                      
+                    }else{
+                      distance++;
+                    }
+                    
+                  }else{ // Fragmented block
+
+                    if(pointer1)
+                      frag_pointed1 = ((uintptr_t) (ADDR2UINT (address_pointed1) % (BLOCKSIZE))) >> mdp1->heapinfo[block_pointed1].type;
+                    else
+                      frag_pointed1 = j;
+                    if(pointer2)
+                      frag_pointed2 = ((uintptr_t) (ADDR2UINT (address_pointed2) % (BLOCKSIZE))) >> mdp2->heapinfo[block_pointed2].type;
+                    else
+                      frag_pointed2 = j;
+
+                    fprintf(stderr, "Fragments pointed : %d - %d\n", frag_pointed1, frag_pointed2);
+                    
+                    if((frag_pointed1 < 0) || (frag_pointed1 > (BLOCKSIZE / pow( 2, mdp1->heapinfo[block_pointed1].type))) || (frag_pointed2 < 0) || (frag_pointed2 > (BLOCKSIZE / pow( 2, mdp2->heapinfo[block_pointed2].type)))){
+                       fprintf(stderr, "Unknown pointer ! \n");
+                       fflush(NULL);
+                       distance++;
+                       continue;
+                    } 
+
+                    fprintf(stderr, "Size used in fragments pointed : %d - %d\n", mdp1->heapinfo[block_pointed1].busy_frag.frag_size[frag_pointed1], mdp2->heapinfo[block_pointed2].busy_frag.frag_size[frag_pointed2]); 
+                                        
+                    if(mdp1->heapinfo[block_pointed1].busy_frag.frag_size[frag_pointed1] == mdp2->heapinfo[block_pointed2].busy_frag.frag_size[frag_pointed2]){
+                      
+                      if(memcmp(addr_block_pointed1, addr_block_pointed2, mdp1->heapinfo[block_pointed1].busy_frag.frag_size[frag_pointed1]) != 0){
+                        distance++;
+                      }else{
+                        fprintf(stderr, "False difference detected\n");
+                      }
+                      
+                    }else{
+                      distance ++;
+                    }
+                  }
+
+                }else{
+
+                  if(((mdp1->heapinfo[block_pointed1].type == 0) && (mdp2->heapinfo[block_pointed2].type != 0)) || ((mdp1->heapinfo[block_pointed1].type != 0) && (mdp2->heapinfo[block_pointed2].type == 0))){  
+                    fprintf(stderr, "Pointers on blocks with different types \n");
+                    distance++;
+                  }else{
+
+                    if(pointer1)
+                      frag_pointed1 = ((uintptr_t) (ADDR2UINT (address_pointed1) % (BLOCKSIZE))) >> mdp1->heapinfo[block_pointed1].type;
+                    else
+                      frag_pointed1 = j;
+                    if(pointer2)
+                      frag_pointed2 = ((uintptr_t) (ADDR2UINT (address_pointed2) % (BLOCKSIZE))) >> mdp2->heapinfo[block_pointed2].type;
+                    else
+                      frag_pointed2 = j;
+
+                    fprintf(stderr, "Fragments pointed : %d - %d\n", frag_pointed1, frag_pointed2);
+                    
+                    if((frag_pointed1 < 0) || (frag_pointed1 > (BLOCKSIZE / pow( 2, mdp1->heapinfo[block_pointed1].type))) || (frag_pointed2 < 0) || (frag_pointed2 > (BLOCKSIZE / pow( 2, mdp2->heapinfo[block_pointed2].type)))){
+                       fprintf(stderr, "Unknown pointers ! \n");
+                       fflush(NULL);
+                       distance++;
+                       continue;
+                    } 
+
+                    fprintf(stderr, "Size used in fragments pointed : %d - %d\n", mdp1->heapinfo[block_pointed1].busy_frag.frag_size[frag_pointed1], mdp2->heapinfo[block_pointed2].busy_frag.frag_size[frag_pointed2]); 
+                                        
+                    if(mdp1->heapinfo[block_pointed1].busy_frag.frag_size[frag_pointed1] == mdp2->heapinfo[block_pointed2].busy_frag.frag_size[frag_pointed2]){
+                      
+                      if(memcmp(addr_block_pointed1, addr_block_pointed2, mdp1->heapinfo[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, mdp1->heapinfo[i].busy_frag.frag_size[j], i);
+              fprintf(stderr, "Hamming distance between fragments : %d\n", distance);
+              mmalloc_backtrace_fragment_display(mdp1, i, j);
+              mmalloc_backtrace_fragment_display(mdp2, i, j);
+              fprintf(stderr, "\n");
+              errors++;
+              total_distance += distance;
+
+            }
 
-      /* Hamming distance on different blocks */
-      distance = 0;
-      //for(k=0;k<frag_size;k++){
-      for(k=0;k<mdp1->heapinfo[i].busy_frag.frag_size[j];k++){
-        if((((char *)addr_frag1) + k != 0) && (((char *)addr_frag2) + k != 0)){
-    if(memcmp(((char *)addr_frag1) + k, ((char *)addr_frag2) + k, 1) != 0){
-      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));           
-      if(((address_pointed1 > (void *)s_heap) && (address_pointed1 < mdp1->breakval)) && ((address_pointed2 > (void *)s_heap) && (address_pointed2 < mdp2->breakval))){
-        block_pointed1 = ((char*)address_pointed1 - (char*)((struct mdesc*)s_heap)->heapbase) % BLOCKSIZE;
-        block_pointed2 = ((char*)address_pointed2 - (char*)((struct mdesc*)s_heap)->heapbase) % BLOCKSIZE;
-        if((block_pointed1 == 0) && (block_pointed2 == 0)){
-          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; 
-          if(mdp1->heapinfo[block_pointed1].type == mdp2->heapinfo[block_pointed2].type){
-      if(mdp1->heapinfo[block_pointed1].type == 0){ // Large block
-        if(mdp1->heapinfo[block_pointed1].busy_block.busy_size == mdp2->heapinfo[block_pointed2].busy_block.busy_size){
-          addr_block_pointed1 = (char*)heapbase1 + ((block_pointed1 - 1)*BLOCKSIZE);
-          addr_block_pointed2 = (char*)heapbase2 + ((block_pointed2 - 1)*BLOCKSIZE);
-          fprintf(stderr, "Memcmp between blocks %d and %d (size = %zu)\n", block_pointed1, block_pointed2,  mdp1->heapinfo[block_pointed1].busy_block.busy_size); 
-          if(memcmp(addr_block_pointed1, addr_block_pointed2, mdp1->heapinfo[block_pointed1].busy_block.busy_size) != 0){
-            distance++;
-          }else{
-            fprintf(stderr, "False difference detected\n");
-          }
-        }else{
-          distance++;
-        }
-      }else{ // Fragmented block
-        addr_block_pointed1 = (char*)mdp1 + ((char *)address_pointed1 - (char *)s_heap);
-        addr_block_pointed2 = (char*)mdp2 + ((char *)address_pointed2 - (char *)s_heap);
-        if(mdp1->heapinfo[block_pointed1].busy_frag.frag_size[0] == mdp2->heapinfo[block_pointed2].busy_frag.frag_size[0]){
-          if(memcmp(addr_block_pointed1, addr_block_pointed2, mdp1->heapinfo[block_pointed1].busy_frag.frag_size[0]) != 0){
-            distance++;
-          }else{
-            fprintf(stderr, "False difference detected\n");
           }
-        }else{
-          distance ++;
-        }
-      }
-          }else{
-      fprintf(stderr, "Pointers on blocks with different types \n");
-      distance++;
-          }
-        }else{
-          /* FIXME : peut pointer vers le début d'un fragment mais dans un bloc */
-          fprintf(stderr, "Pointed addresses (%p - %p) not valid \n", address_pointed1, address_pointed2);
-          distance++;
-        }
-      }else{
-        fprintf(stderr, "Pointed addresses (%p - %p) not in std_heap\n", address_pointed1, address_pointed2);
-        distance++;
-      }
-    }
         }
 
-      }
-      
-      if(distance > 0){
-        fprintf(stderr,"\nDifferent data in fragment %zu (size = %zu, size used = %hu) in block %zu \n", j, frag_size, mdp1->heapinfo[i].busy_frag.frag_size[j], i);
-        fprintf(stderr, "Hamming distance between fragments : %d\n", distance);
-        mmalloc_backtrace_fragment_display(mdp1, i, j);
-        mmalloc_backtrace_fragment_display(mdp2, i, j);
-        fprintf(stderr, "\n");
-        errors++;
-        total_distance += distance;
-        
-      }
-
-    }
-  }
-
-  i++;
+        i++;
 
       }else{ /* free block */
 
-  i++;
+        i++;
 
       }
-      
+
     }
 
   }
@@ -407,7 +572,7 @@ int mmalloc_compare_mdesc(struct mdesc *mdp1, struct mdesc *mdp2){
 /*   size_t n = 0;                 /\* Amount of bytes to read by getline *\/ */
 
 /*   fp = fopen("/proc/self/maps", "r"); */
-  
+
 /*   if(fp == NULL) */
 /*     perror("fopen failed"); */