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modelc-checker : reset list of blocks/fragments pairs associated
[simgrid.git] / src / xbt / mmalloc / mm_diff.c
index 2e0cf4c..db24efa 100644 (file)
@@ -13,9 +13,7 @@
 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mm_diff, xbt,
                                 "Logging specific to mm_diff in mmalloc");
 
-extern char *xbt_binary_name;
-
-xbt_dynar_t mc_comparison_ignore;
+xbt_dynar_t mc_heap_comparison_ignore;
 xbt_dynar_t stacks_areas;
 
 static void heap_area_pair_free(heap_area_pair_t pair);
@@ -28,7 +26,7 @@ static int compare_area(void *area1, void* area2, size_t size, xbt_dynar_t previ
 static void match_equals(xbt_dynar_t list, xbt_dynar_t *equals);
 
 static int in_mc_comparison_ignore(int block, int fragment);
-static size_t heap_comparison_ignore(void *address);
+static size_t heap_comparison_ignore_size(void *address);
 static void add_heap_equality(xbt_dynar_t *equals, void *a1, void *a2);
 static void remove_heap_equality(xbt_dynar_t *equals, int address, void *a);
 
@@ -113,15 +111,14 @@ void mmalloc_backtrace_display(void *addr){
     mmalloc_backtrace_fragment_display(heap->heapinfo, block, frag_nb);
     break;
   }
-
 }
 
 
-void *s_heap, *heapbase1, *heapbase2;
-malloc_info *heapinfo1, *heapinfo2;
-size_t heaplimit, heapsize1, heapsize2;
+void *s_heap = NULL, *heapbase1 = NULL, *heapbase2 = NULL;
+malloc_info *heapinfo1 = NULL, *heapinfo2 = NULL;
+size_t heaplimit = 0, heapsize1 = 0, heapsize2 = 0;
 
-int ignore_done;
+int ignore_done = 0;
 
 int mmalloc_compare_heap(xbt_mheap_t heap1, xbt_mheap_t heap2, xbt_dynar_t *stack1, xbt_dynar_t *stack2, xbt_dynar_t *equals){
 
@@ -154,27 +151,20 @@ int mmalloc_compare_heap(xbt_mheap_t heap1, xbt_mheap_t heap2, xbt_dynar_t *stac
   void *addr_block1, *addr_block2, *addr_frag1, *addr_frag2;
   void *real_addr_block1, *real_addr_block2;
   char *stack_name;
-  int nb_block1=0, nb_frag1=0, nb_block2=0, nb_frag2=0;
 
   xbt_dynar_t previous = xbt_dynar_new(sizeof(heap_area_pair_t), heap_area_pair_free_voidp);
 
-  int equal, res_compare;
-
-  ignore_done = 0;
+  int equal, res_compare = 0;
 
   /* Init equal information */
   i1 = 1;
 
   while(i1<=heaplimit){
     if(heapinfo1[i1].type == 0){
-      if(heapinfo1[i1].busy_block.busy_size > 0)
-        nb_block1++;
       heapinfo1[i1].busy_block.equal_to = NULL;
     }
     if(heapinfo1[i1].type > 0){
       for(j1=0; j1 < (size_t) (BLOCKSIZE >> heapinfo1[i1].type); j1++){
-        if(heapinfo1[i1].busy_frag.frag_size[j1] > 0)
-          nb_frag1++;
         heapinfo1[i1].busy_frag.equal_to[j1] = NULL;
       }
     }
@@ -185,23 +175,43 @@ int mmalloc_compare_heap(xbt_mheap_t heap1, xbt_mheap_t heap2, xbt_dynar_t *stac
 
   while(i2<=heaplimit){
     if(heapinfo2[i2].type == 0){
-      if(heapinfo2[i2].busy_block.busy_size > 0)
-        nb_block2++;
       heapinfo2[i2].busy_block.equal_to = NULL;
     }
     if(heapinfo2[i2].type > 0){
       for(j2=0; j2 < (size_t) (BLOCKSIZE >> heapinfo2[i2].type); j2++){
-        if(heapinfo2[i2].busy_frag.frag_size[j2] > 0)
-          nb_frag2++;
         heapinfo2[i2].busy_frag.equal_to[j2] = NULL;
       }
     }
     i2++; 
   }
 
-  if(nb_block1 != nb_block2 || nb_frag1 != nb_frag2){
-    XBT_DEBUG("Different number of busy blocks (%d - %d) or busy fragments (%d - %d)", nb_block1, nb_block2, nb_frag1, nb_frag2);
-    return 1;
+  /* Init equal information */
+  i1 = 1;
+
+  while(i1<=heaplimit){
+    if(heapinfo1[i1].type == 0){
+      heapinfo1[i1].busy_block.equal_to = -1;
+    }
+    if(heapinfo1[i1].type > 0){
+      for(j1=0; j1 < MAX_FRAGMENT_PER_BLOCK; j1++){
+        heapinfo1[i1].busy_frag.equal_to[j1] = -1;
+      }
+    }
+    i1++; 
+  }
+
+  i2 = 1;
+
+  while(i2<=heaplimit){
+    if(heapinfo2[i2].type == 0){
+      heapinfo2[i2].busy_block.equal_to = -1;
+    }
+    if(heapinfo2[i2].type > 0){
+      for(j2=0; j2 < MAX_FRAGMENT_PER_BLOCK; j2++){
+        heapinfo2[i2].busy_frag.equal_to[j2] = -1;
+      }
+    }
+    i2++; 
   }
 
   /* Check busy blocks*/
@@ -228,6 +238,7 @@ int mmalloc_compare_heap(xbt_mheap_t heap1, xbt_mheap_t heap2, xbt_dynar_t *stac
         stack->process_name = strdup(stack_name);
         stack->size = heapinfo1[i1].busy_block.busy_size;
         xbt_dynar_push(*stack1, &stack);
+        res_compare = -1;
       }
 
       if(heapinfo1[i1].busy_block.busy_size == 0){
@@ -242,6 +253,7 @@ int mmalloc_compare_heap(xbt_mheap_t heap1, xbt_mheap_t heap2, xbt_dynar_t *stac
     
       i2 = 1;
       equal = 0;
+      res_compare = 0;
   
       /* Try first to associate to same block in the other heap */
       if(heapinfo2[current_block].type == heapinfo1[current_block].type){
@@ -259,20 +271,23 @@ int mmalloc_compare_heap(xbt_mheap_t heap1, xbt_mheap_t heap2, xbt_dynar_t *stac
               stack->process_name = strdup(stack_name);
               stack->size = heapinfo2[current_block].busy_block.busy_size;
               xbt_dynar_push(*stack2, &stack);
+              res_compare = -1;
             }
         
             add_heap_area_pair(previous, current_block, -1, current_block, -1);
         
-            if(ignore_done < xbt_dynar_length(mc_comparison_ignore)){
-              if(in_mc_comparison_ignore((int)current_block, -1))
-                res_compare = compare_area(addr_block1, addr_block2, heapinfo1[current_block].busy_block.busy_size, previous, 1);
-              else
+            if(res_compare != -1){
+              if(ignore_done < xbt_dynar_length(mc_heap_comparison_ignore)){
+                if(in_mc_comparison_ignore((int)current_block, -1))
+                  res_compare = compare_area(addr_block1, addr_block2, heapinfo1[current_block].busy_block.busy_size, previous, 1);
+                else
+                  res_compare = compare_area(addr_block1, addr_block2, heapinfo1[current_block].busy_block.busy_size, previous, 0);
+              }else{
                 res_compare = compare_area(addr_block1, addr_block2, heapinfo1[current_block].busy_block.busy_size, previous, 0);
-            }else{
-              res_compare = compare_area(addr_block1, addr_block2, heapinfo1[current_block].busy_block.busy_size, previous, 0);
+              }
             }
         
-            if(res_compare == 0){
+            if(res_compare == 0 || res_compare == -1){
               for(k=1; k < heapinfo2[current_block].busy_block.size; k++)
                 heapinfo2[current_block+k].busy_block.equal_to = new_heap_area(i1, -1);
               for(k=1; k < heapinfo1[current_block].busy_block.size; k++)
@@ -301,6 +316,7 @@ int mmalloc_compare_heap(xbt_mheap_t heap1, xbt_mheap_t heap2, xbt_dynar_t *stac
           stack->process_name = strdup(stack_name);
           stack->size = heapinfo2[i2].busy_block.busy_size;
           xbt_dynar_push(*stack2, &stack);
+          res_compare = -1;
         }
            
         if(i2 == current_block){
@@ -331,16 +347,18 @@ int mmalloc_compare_heap(xbt_mheap_t heap1, xbt_mheap_t heap2, xbt_dynar_t *stac
         /* Comparison */
         add_heap_area_pair(previous, i1, -1, i2, -1);
         
-        if(ignore_done < xbt_dynar_length(mc_comparison_ignore)){
-          if(in_mc_comparison_ignore((int)i1, -1))
-            res_compare = compare_area(addr_block1, addr_block2, heapinfo1[i1].busy_block.busy_size, previous, 1);
-          else
+        if(res_compare != -1){
+          if(ignore_done < xbt_dynar_length(mc_heap_comparison_ignore)){
+            if(in_mc_comparison_ignore((int)i1, -1))
+              res_compare = compare_area(addr_block1, addr_block2, heapinfo1[i1].busy_block.busy_size, previous, 1);
+            else
+              res_compare = compare_area(addr_block1, addr_block2, heapinfo1[i1].busy_block.busy_size, previous, 0);
+          }else{
             res_compare = compare_area(addr_block1, addr_block2, heapinfo1[i1].busy_block.busy_size, previous, 0);
-        }else{
-          res_compare = compare_area(addr_block1, addr_block2, heapinfo1[i1].busy_block.busy_size, previous, 0);
+          }
         }
         
-        if(res_compare == 0){
+        if(res_compare == 0 || res_compare == -1){
           for(k=1; k < heapinfo2[i2].busy_block.size; k++)
             heapinfo2[i2+k].busy_block.equal_to = new_heap_area(i1, -1);
           for(k=1; k < heapinfo1[i1].busy_block.size; k++)
@@ -388,7 +406,7 @@ int mmalloc_compare_heap(xbt_mheap_t heap1, xbt_mheap_t heap2, xbt_dynar_t *stac
                
                 add_heap_area_pair(previous, current_block, current_fragment, current_block, current_fragment);
             
-                if(ignore_done < xbt_dynar_length(mc_comparison_ignore)){
+                if(ignore_done < xbt_dynar_length(mc_heap_comparison_ignore)){
                   if(in_mc_comparison_ignore((int)current_block, (int)current_fragment))
                     res_compare = compare_area(addr_frag1, addr_frag2, heapinfo1[current_block].busy_frag.frag_size[current_fragment], previous, 1);
                   else
@@ -435,7 +453,7 @@ int mmalloc_compare_heap(xbt_mheap_t heap1, xbt_mheap_t heap2, xbt_dynar_t *stac
             /* Comparison */
             add_heap_area_pair(previous, i1, j1, i2, j2);
             
-            if(ignore_done < xbt_dynar_length(mc_comparison_ignore)){
+            if(ignore_done < xbt_dynar_length(mc_heap_comparison_ignore)){
               if(in_mc_comparison_ignore((int)i1, (int)j1))
                 res_compare = compare_area(addr_frag1, addr_frag2, heapinfo1[i1].busy_frag.frag_size[j1], previous, 1);
               else
@@ -548,9 +566,12 @@ int mmalloc_compare_heap(xbt_mheap_t heap1, xbt_mheap_t heap2, xbt_dynar_t *stac
   XBT_DEBUG("Different blocks or fragments in heap2 : %d", nb_diff2);
 
   xbt_dynar_free(&previous);
+  ignore_done = 0;
+  s_heap = NULL, heapbase1 = NULL, heapbase2 = NULL;
+  heapinfo1 = NULL, heapinfo2 = NULL;
+  heaplimit = 0, heapsize1 = 0, heapsize2 = 0;
 
   return ((nb_diff1 > 0) || (nb_diff2 > 0));
-
 }
 
 static heap_area_t new_heap_area(int block, int fragment){
@@ -565,12 +586,12 @@ static int in_mc_comparison_ignore(int block, int fragment){
 
   unsigned int cursor = 0;
   int start = 0;
-  int end = xbt_dynar_length(mc_comparison_ignore) - 1;
-  mc_ignore_region_t region;
+  int end = xbt_dynar_length(mc_heap_comparison_ignore) - 1;
+  mc_heap_ignore_region_t region;
 
   while(start <= end){
     cursor = (start + end) / 2;
-    region = (mc_ignore_region_t)xbt_dynar_get_as(mc_comparison_ignore, cursor, mc_ignore_region_t);
+    region = (mc_heap_ignore_region_t)xbt_dynar_get_as(mc_heap_comparison_ignore, cursor, mc_heap_ignore_region_t);
     if(region->block == block){
       if(region->fragment == fragment)
         return 1;
@@ -588,15 +609,15 @@ static int in_mc_comparison_ignore(int block, int fragment){
   return 0;
 }
 
-static size_t heap_comparison_ignore(void *address){
+static size_t heap_comparison_ignore_size(void *address){
   unsigned int cursor = 0;
   int start = 0;
-  int end = xbt_dynar_length(mc_comparison_ignore) - 1;
-  mc_ignore_region_t region;
+  int end = xbt_dynar_length(mc_heap_comparison_ignore) - 1;
+  mc_heap_ignore_region_t region;
 
   while(start <= end){
     cursor = (start + end) / 2;
-    region = (mc_ignore_region_t)xbt_dynar_get_as(mc_comparison_ignore, cursor, mc_ignore_region_t);
+    region = (mc_heap_ignore_region_t)xbt_dynar_get_as(mc_heap_comparison_ignore, cursor, mc_heap_ignore_region_t);
     if(region->address == address)
       return region->size;
     if(region->address < address)
@@ -622,9 +643,9 @@ static int compare_area(void *area1, void* area2, size_t size, xbt_dynar_t previ
     if(check_ignore){
 
       current_area1 = (char*)((xbt_mheap_t)s_heap)->heapbase + ((((char *)area1) + i) - (char *)heapbase1);
-      if((ignore1 = heap_comparison_ignore(current_area1)) > 0){
+      if((ignore1 = heap_comparison_ignore_size(current_area1)) > 0){
         current_area2 = (char*)((xbt_mheap_t)s_heap)->heapbase + ((((char *)area2) + i) - (char *)heapbase2);
-        if((ignore2 = heap_comparison_ignore(current_area2))  == ignore1){
+        if((ignore2 = heap_comparison_ignore_size(current_area2))  == ignore1){
           i = i + ignore2;
           ignore_done++;
           continue;
@@ -665,7 +686,7 @@ static int compare_area(void *area1, void* area2, size_t size, xbt_dynar_t previ
 
           if(add_heap_area_pair(previous, block_pointed1, -1, block_pointed2, -1)){
 
-            if(ignore_done < xbt_dynar_length(mc_comparison_ignore)){
+            if(ignore_done < xbt_dynar_length(mc_heap_comparison_ignore)){
               if(in_mc_comparison_ignore(block_pointed1, -1))
                 res_compare = compare_area(addr_block_pointed1, addr_block_pointed2, heapinfo1[block_pointed1].busy_block.busy_size, previous, 1);
               else
@@ -693,7 +714,7 @@ static int compare_area(void *area1, void* area2, size_t size, xbt_dynar_t previ
 
           if(add_heap_area_pair(previous, block_pointed1, frag_pointed1, block_pointed2, frag_pointed2)){
 
-            if(ignore_done < xbt_dynar_length(mc_comparison_ignore)){
+            if(ignore_done < xbt_dynar_length(mc_heap_comparison_ignore)){
               if(in_mc_comparison_ignore(block_pointed1, frag_pointed1))
                 res_compare = compare_area(addr_frag_pointed1, addr_frag_pointed2, heapinfo1[block_pointed1].busy_frag.frag_size[frag_pointed1], previous, 1);
               else
@@ -727,7 +748,7 @@ static int compare_area(void *area1, void* area2, size_t size, xbt_dynar_t previ
 
           if(add_heap_area_pair(previous, block_pointed1, frag_pointed1, block_pointed2, frag_pointed2)){
 
-            if(ignore_done < xbt_dynar_length(mc_comparison_ignore)){
+            if(ignore_done < xbt_dynar_length(mc_heap_comparison_ignore)){
               if(in_mc_comparison_ignore(block_pointed1, frag_pointed1))
                 res_compare = compare_area(addr_frag_pointed1, addr_frag_pointed2, heapinfo1[block_pointed1].busy_frag.frag_size[frag_pointed1], previous, 1);
               else
@@ -1016,12 +1037,12 @@ static char * is_stack(void *address){
 
 static void add_heap_equality(xbt_dynar_t *equals, void *a1, void *a2){
   
-  heap_equality_t he = xbt_new0(s_heap_equality_t, 1);
-  he->address1 = a1;
-  he->address2 = a2;
-
   if(xbt_dynar_is_empty(*equals)){
 
+    heap_equality_t he = xbt_new0(s_heap_equality_t, 1);
+    he->address1 = a1;
+    he->address2 = a2;
+
     xbt_dynar_insert_at(*equals, 0, &he);
   
   }else{
@@ -1047,6 +1068,10 @@ static void add_heap_equality(xbt_dynar_t *equals, void *a1, void *a2){
       if(current_equality->address1 > a1)
         end = cursor - 1; 
     }
+
+    heap_equality_t he = xbt_new0(s_heap_equality_t, 1);
+    he->address1 = a1;
+    he->address2 = a2;
   
     if(current_equality->address1 < a1)
       xbt_dynar_insert_at(*equals, cursor + 1 , &he);