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model-checker : cosmectics reindent and unnecessary whitespaces removed
[simgrid.git] / src / xbt / mmalloc / mm_diff.c
index 9b6de46..1a2a5ee 100644 (file)
@@ -7,6 +7,7 @@
 
 #include "xbt/ex_interface.h" /* internals of backtrace setup */
 #include "xbt/str.h"
+#include "mc/mc.h"
 
 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mm_diff, xbt,
                                 "Logging specific to mm_diff in mmalloc");
@@ -90,7 +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);
@@ -112,98 +113,39 @@ void mmalloc_backtrace_fragment_display(xbt_mheap_t mdp, size_t block, size_t fr
   }
 }
 
-int mmalloc_compare_heap(xbt_mheap_t mdp1, xbt_mheap_t mdp2, void* s_heap, void* r_heap){
+int mmalloc_compare_heap(xbt_mheap_t mdp1, xbt_mheap_t mdp2){
 
   if(mdp1 == NULL && mdp2 == NULL){
     fprintf(stderr, "Malloc descriptors null\n");
     return 0;
   }
 
-  int errors = mmalloc_compare_mdesc(mdp1, mdp2, s_heap, r_heap);
+  int errors = mmalloc_compare_mdesc(mdp1, mdp2);
 
   return (errors > 0);
 
 }
 
-int mmalloc_compare_mdesc(struct mdesc *mdp1, struct mdesc *mdp2, void* s_heap, void* r_heap){
+int mmalloc_compare_mdesc(struct mdesc *mdp1, struct mdesc *mdp2){
 
   int errors = 0;
 
-  /*if(mdp1->headersize != mdp2->headersize){
-    fprintf(stderr, "Different size of the file header for the mapped files\n");
-    return 1;
-  }
-
-  if(mdp1->refcount != mdp2->refcount){
-    fprintf(stderr, "Different number of processes that attached the heap\n");
-    return 1;
-  }
-
-  if(strcmp(mdp1->magic, mdp2->magic) != 0){
-    fprintf(stderr,"Different magic number\n");
-    return 1;
-  }
-
-  if(mdp1->flags != mdp2->flags){
-    fprintf(stderr,"Different flags\n");  
-    return 1;
-  }
-
-  if(mdp1->heapsize != mdp2->heapsize){
-    fprintf(stderr,"Different number of info entries\n");
-    return 1;
-  }  
-
-  if(mdp1->heapbase != mdp2->heapbase){
-    fprintf(stderr,"Different first block of the heap\n");
-    return 1;
-  }
-
-  if(mdp1->heapindex != mdp2->heapindex){
-    fprintf(stderr,"Different index for the heap table : %zu - %zu\n", mdp1->heapindex, mdp2->heapindex);
-    return 1;
-  }
-
-  if(mdp1->base != mdp2->base){
-    fprintf(stderr,"Different base address of the memory region\n");
-    return 1;
-  }
-
-  if(mdp1->breakval != mdp2->breakval){
-    fprintf(stderr,"Different current location in the memory region\n");
-    return 1;
-  }
-
-  if(mdp1->top != mdp2->top){
-    fprintf(stderr,"Different end of the current location in the memory region\n");
-    return 1;
-  }
-
   if(mdp1->heaplimit != mdp2->heaplimit){
     fprintf(stderr,"Different limit of valid info table indices\n");
     return 1;
   }
 
-  if(mdp1->fd != mdp2->fd){
-    fprintf(stderr,"Different file descriptor for the file to which this malloc heap is mapped\n");
-    return 1;
-  }
-
-  if(mdp1->version != mdp2->version){
-    fprintf(stderr,"Different version of the mmalloc package\n");
-    return 1;
-    }*/
+  void* s_heap = (char *)mmalloc_get_current_heap() - STD_HEAP_SIZE - getpagesize();
 
-  //void* heapbase1 = (char *)mdp1 + ((char *)mdp1->heapbase - (char *)s_heap);
-  //void* heapbase2 = (char *)mdp2 + ((char *)mdp2->heapbase - (char *)s_heap);
-    
   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 = 0;         /* FIXME: arbitrary initialization */
-  /* size_t frag_size_pointed; FIXME: unused */
+  size_t frag_size;
 
   i = 1;
 
@@ -211,16 +153,11 @@ int mmalloc_compare_mdesc(struct mdesc *mdp1, struct mdesc *mdp2, void* s_heap,
   int distance = 0;
   int total_distance = 0;
 
-  void *end_heap = get_end_addr_heap(s_heap);
-
   int pointer_align;
   void *address_pointed1, *address_pointed2;
 
   int block_pointed1, block_pointed2;
   void *addr_block_pointed1, *addr_block_pointed2;
-  int frag_pointed1, frag_pointed2;
-
-
 
   /* Check busy blocks*/
 
@@ -231,13 +168,11 @@ int mmalloc_compare_mdesc(struct mdesc *mdp1, struct mdesc *mdp2, void* s_heap,
       errors++;
     }
 
-    //fprintf(stderr, "i = %zu, type = %d", i, mdp1->heapinfo[i].type);
-
-    //addr_block1 = (void*) (((ADDR2UINT(i)) - 1) * BLOCKSIZE + (char*)heapbase1);
-    //addr_block2 = (void*) (((ADDR2UINT(1)) - 1) * BLOCKSIZE + (char*)heapbase2);
-
     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");
 
     if(mdp1->heapinfo[i].type == 0){ /* busy large block */
 
@@ -245,85 +180,74 @@ int mmalloc_compare_mdesc(struct mdesc *mdp1, struct mdesc *mdp2, void* s_heap,
        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++;
-      } 
+      }
 
-  
       /* 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(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 > s_heap) && (address_pointed1 < end_heap)) && ((address_pointed2 > s_heap) && (address_pointed2 < end_heap))){
-           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(mdp1->heapinfo[block_pointed1].type == mdp2->heapinfo[block_pointed2].type){
-             if(mdp1->heapinfo[block_pointed1].type == 0){ // Large block
-               while(mdp1->heapinfo[block_pointed1].busy_block.size == 0)
-                 block_pointed1--;
-               while(mdp2->heapinfo[block_pointed2].busy_block.size == 0)
-                 block_pointed2--;
-               if(mdp1->heapinfo[block_pointed1].busy_block.busy_size == mdp2->heapinfo[block_pointed2].busy_block.busy_size){
-                 //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);
-                 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");
+       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++;
+                     }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){
+                       fprintf(stderr, "Pointed fragments are different \n");
+                       distance++;
+                     }else{
+                       fprintf(stderr, "False difference detected\n");
+                     }
+                   }else{
+                     fprintf(stderr, "Different size of pointed fragments\n");
+                     distance ++;
+                   }
                  }
                }else{
+                 fprintf(stderr, "Pointers on blocks with different types \n");
                  distance++;
                }
-             }else{ // Fragmented block
-               address_pointed1 = (char*)mdp1 + ((char*)address_pointed1 - (char*)s_heap);
-               address_pointed2 = (char*)mdp2 + ((char*)address_pointed2 - (char*)s_heap);
-               //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);
-               addr_block_pointed1 = (char*)heapbase1 + ((block_pointed1 - 1)*BLOCKSIZE);
-               addr_block_pointed2 = (char*)heapbase2 + ((block_pointed2 - 1)*BLOCKSIZE);
-               frag_pointed1 = 0;
-               while(address_pointed1 > (void*)((char*)addr_block_pointed1 + ((frag_pointed1 +1 ) * frag_size))){
-                 frag_pointed1++;
-               }
-               frag_pointed2 = 0;
-               while(address_pointed2 > (void*)((char*)addr_block_pointed2 + ((frag_pointed2 +1) * 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]){
-                 fprintf(stderr, "Memcmp between fragments %d (block %d) and %d (block %d) (size = %d)\n", frag_pointed1, block_pointed1, frag_pointed2, block_pointed2,  mdp1->heapinfo[block_pointed1].busy_frag.frag_size[frag_pointed1]); 
-                 if(memcmp((char*)addr_block_pointed1 + (frag_pointed1 * frag_size), (char*)addr_block_pointed2 + (frag_pointed2 * frag_size), mdp1->heapinfo[block_pointed1].busy_frag.frag_size[frag_pointed1]) != 0){
-                   distance++;
-                 }else{
-                   fprintf(stderr, "False difference detected\n");
-                 }
-               }else{
-                 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++;
            }
-         }else{
-           distance++;
          }
-           
        }
       }
 
@@ -334,15 +258,15 @@ int mmalloc_compare_mdesc(struct mdesc *mdp1, struct mdesc *mdp2, void* s_heap,
        fprintf(stderr, "Hamming distance between blocks : %d\n", distance);
        mmalloc_backtrace_block_display(mdp1, i);
        mmalloc_backtrace_block_display(mdp2, i);
-       errors++; 
+       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){
@@ -353,14 +277,12 @@ int mmalloc_compare_mdesc(struct mdesc *mdp1, struct mdesc *mdp2, void* s_heap,
        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++;
-       } 
-
-       //fprintf(stderr,"\n");
+       }
 
        frag_size = pow(2, mdp1->heapinfo[i].type);
 
@@ -372,88 +294,83 @@ int mmalloc_compare_mdesc(struct mdesc *mdp1, struct mdesc *mdp2, void* s_heap,
          }
 
          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);
+           xbt_assert(addr_frag1 < breakval1, "Fragment address out of heap memory used");
 
+           addr_frag2 = (char *)addr_block2 + (j * frag_size);
+           xbt_assert(addr_frag1 < breakval1, "Fragment address out of heap memory used");
 
            /* 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(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 > s_heap) && (address_pointed1 < end_heap)) && ((address_pointed2 > s_heap) && (address_pointed2 < end_heap))){
-                 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(mdp1->heapinfo[block_pointed1].type == mdp2->heapinfo[block_pointed2].type){
-                   if(mdp1->heapinfo[block_pointed1].type == 0){ // Large block
-                     while(mdp1->heapinfo[block_pointed1].busy_block.size == 0)
-                       block_pointed1--;
-                     while(mdp2->heapinfo[block_pointed2].busy_block.size == 0)
-                       block_pointed2--;
-                     if(mdp1->heapinfo[block_pointed1].busy_block.busy_size == mdp2->heapinfo[block_pointed2].busy_block.busy_size){
-                       //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);
-                       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");
+             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{ // Fragmented block
-                     address_pointed1 = (char*)mdp1 + ((char*)address_pointed1 - (char*)s_heap);
-                     address_pointed2 = (char*)mdp2 + ((char*)address_pointed2 - (char*)s_heap);
-                     //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);
-                     addr_block_pointed1 = (char*)heapbase1 + ((block_pointed1 - 1)*BLOCKSIZE);
-                     addr_block_pointed2 = (char*)heapbase2 + ((block_pointed2 - 1)*BLOCKSIZE);
-                     frag_pointed1 = 0;
-                     while(address_pointed1 > (void*)((char*)addr_block_pointed1 + ((frag_pointed1 + 1) * frag_size))){
-                       frag_pointed1++;
-                     }
-                     frag_pointed2 = 0;
-                     while(address_pointed2 > (void*)((char*)addr_block_pointed2 + ((frag_pointed2 + 1) * 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]){
-                       fprintf(stderr, "Memcmp between fragments %d (block %d) and %d (block %d) (size = %d)\n", frag_pointed1, block_pointed1, frag_pointed2, block_pointed2,  mdp1->heapinfo[block_pointed1].busy_frag.frag_size[frag_pointed1]); 
-                       if(memcmp((char*)addr_block_pointed1 + (frag_pointed1 * frag_size), (char*)addr_block_pointed2 + (frag_pointed2 * frag_size), mdp1->heapinfo[block_pointed1].busy_frag.frag_size[frag_pointed1]) != 0){
-                         distance++;
-                       }else{
-                         fprintf(stderr, "False difference detected\n");
-                       }
-                     }else{
-                       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++;
                  }
-               }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;
-             
+
            }
 
          }
@@ -465,16 +382,12 @@ int mmalloc_compare_mdesc(struct mdesc *mdp1, struct mdesc *mdp2, void* s_heap,
 
        i++;
 
-       //fprintf(stderr,"\n");
-
       }
-      
+
     }
 
   }
 
-  //free(pointed_address1);
-  //free(pointed_address2);
 
   fprintf(stderr, "Hamming distance between heap regions : %d\n", total_distance);
 
@@ -482,56 +395,56 @@ int mmalloc_compare_mdesc(struct mdesc *mdp1, struct mdesc *mdp2, void* s_heap,
 }
 
 
-void *get_end_addr_heap(void *s_heap){
+/* void *get_end_addr_heap(void *heap){ */
 
-  FILE *fp;                     /* File pointer to process's proc maps file */
-  char *line = NULL;            /* Temporal storage for each line that is readed */
-  ssize_t read;                 /* Number of bytes readed */
-  size_t n = 0;                 /* Amount of bytes to read by getline */
+/*   FILE *fp;                     /\* File pointer to process's proc maps file *\/ */
+/*   char *line = NULL;            /\* Temporal storage for each line that is readed *\/ */
+/*   ssize_t read;                 /\* Number of bytes readed *\/ */
+/*   size_t n = 0;                 /\* Amount of bytes to read by getline *\/ */
 
-  fp = fopen("/proc/self/maps", "r");
-  
-  if(fp == NULL)
-    perror("fopen failed");
+/*   fp = fopen("/proc/self/maps", "r"); */
 
+/*   if(fp == NULL) */
+/*     perror("fopen failed"); */
 
-  xbt_dynar_t lfields = NULL;
-  xbt_dynar_t start_end  = NULL;
-  void *start_addr;
-  void *end_addr;
 
-  while ((read = getline(&line, &n, fp)) != -1) {
+/*   xbt_dynar_t lfields = NULL; */
+/*   xbt_dynar_t start_end  = NULL; */
+/*   void *start_addr; */
+/*   void *end_addr; */
 
-    xbt_str_trim(line, NULL);
-    xbt_str_strip_spaces(line);
-    lfields = xbt_str_split(line,NULL);
+/*   while ((read = getline(&line, &n, fp)) != -1) { */
 
-    start_end = xbt_str_split(xbt_dynar_get_as(lfields, 0, char*), "-");
-    start_addr = (void *) strtoul(xbt_dynar_get_as(start_end, 0, char*), NULL, 16);
-    end_addr = (void *) strtoul(xbt_dynar_get_as(start_end, 1, char*), NULL, 16);
+/*     xbt_str_trim(line, NULL); */
+/*     xbt_str_strip_spaces(line); */
+/*     lfields = xbt_str_split(line,NULL); */
 
-    if(start_addr == s_heap){
-      free(line);
-      fclose(fp);
-      xbt_dynar_reset(lfields);
-      xbt_free(lfields);
-      xbt_dynar_reset(start_end);
-      xbt_free(start_end);
-      return end_addr;
-    }
+/*     start_end = xbt_str_split(xbt_dynar_get_as(lfields, 0, char*), "-"); */
+/*     start_addr = (void *) strtoul(xbt_dynar_get_as(start_end, 0, char*), NULL, 16); */
+/*     end_addr = (void *) strtoul(xbt_dynar_get_as(start_end, 1, char*), NULL, 16); */
 
-  }
+/*     if(start_addr == heap){ */
+/*       free(line); */
+/*       fclose(fp); */
+/*       xbt_dynar_reset(lfields); */
+/*       xbt_free(lfields); */
+/*       xbt_dynar_reset(start_end); */
+/*       xbt_free(start_end); */
+/*       return end_addr; */
+/*     } */
 
-  xbt_dynar_reset(lfields);
-  xbt_free(lfields);
-  xbt_dynar_reset(start_end);
-  xbt_free(start_end);
-  free(line);
-  fclose(fp);
-  return NULL;
+/*   } */
 
+/*   xbt_dynar_reset(lfields); */
+/*   xbt_free(lfields); */
+/*   xbt_dynar_reset(start_end); */
+/*   xbt_free(start_end); */
+/*   free(line); */
+/*   fclose(fp); */
+/*   return NULL; */
 
-}
+
+/* } */
 
 
 void mmalloc_display_info_heap(xbt_mheap_t h){