static int data_libsimgrid_region_compare(void *d1, void *d2, size_t size);
static int heap_region_compare(void *d1, void *d2, size_t size);
-static int compare_local_variables(xbt_strbuff_t s1, xbt_strbuff_t s2);
static int compare_stack(stack_region_t s1, stack_region_t s2, void *sp1, void *sp2, void *heap1, void *heap2, xbt_dynar_t equals);
static int is_heap_equality(xbt_dynar_t equals, void *a1, void *a2);
+static size_t ignore(void *address);
+
+static int compare_local_variables(char *s1, char *s2, xbt_dynar_t heap_equals);
+
+static size_t ignore(void *address){
+ unsigned int cursor = 0;
+ int start = 0;
+ int end = xbt_dynar_length(mc_comparison_ignore) - 1;
+ mc_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);
+ if(region->address == address)
+ return region->size;
+ if(region->address < address)
+ start = cursor + 1;
+ if(region->address > address)
+ end = cursor - 1;
+ }
+
+ return 0;
+}
static int data_program_region_compare(void *d1, void *d2, size_t size){
int distance = 0;
size_t i = 0;
+ int pointer_align;
+ void *addr_pointed1 = NULL, *addr_pointed2 = NULL;
for(i=0; i<size; i++){
if(memcmp(((char *)d1) + i, ((char *)d2) + i, 1) != 0){
- XBT_DEBUG("Different byte (offset=%zu) (%p - %p) in data program region", i, (char *)d1 + i, (char *)d2 + i);
- distance++;
+ pointer_align = (i / sizeof(void*)) * sizeof(void*);
+ addr_pointed1 = *((void **)((char *)d1 + pointer_align));
+ addr_pointed2 = *((void **)((char *)d2 + pointer_align));
+ if((addr_pointed1 > start_plt_binary && addr_pointed1 < end_plt_binary) || (addr_pointed2 > start_plt_binary && addr_pointed2 < end_plt_binary)){
+ continue;
+ }else{
+ XBT_DEBUG("Different byte (offset=%zu) (%p - %p) in data program region", i, (char *)d1 + i, (char *)d2 + i);
+ distance++;
+ }
}
}
static int data_libsimgrid_region_compare(void *d1, void *d2, size_t size){
int distance = 0;
- size_t i = 0;
+ size_t i = 0, ignore_size = 0;
int pointer_align;
void *addr_pointed1 = NULL, *addr_pointed2 = NULL;
for(i=0; i<size; i++){
if(memcmp(((char *)d1) + i, ((char *)d2) + i, 1) != 0){
+ if((ignore_size = ignore((char *)start_data_libsimgrid+i)) > 0){
+ i = i + ignore_size;
+ continue;
+ }
pointer_align = (i / sizeof(void*)) * sizeof(void*);
addr_pointed1 = *((void **)((char *)d1 + pointer_align));
addr_pointed2 = *((void **)((char *)d2 + pointer_align));
- if((addr_pointed1 > start_plt && addr_pointed1 < end_plt) || (addr_pointed2 > start_plt && addr_pointed2 < end_plt)){
+ if((addr_pointed1 > start_plt_libsimgrid && addr_pointed1 < end_plt_libsimgrid) || (addr_pointed2 > start_plt_libsimgrid && addr_pointed2 < end_plt_libsimgrid)){
continue;
}else{
XBT_DEBUG("Different byte (offset=%zu) (%p - %p) in data libsimgrid region", i, (char *)d1 + i, (char *)d2 + i);
void *heap1 = NULL, *heap2 = NULL;
if(s1->num_reg != s2->num_reg){
- XBT_DEBUG("Different num_reg (s1 = %u, s2 = %u)", s1->num_reg, s2->num_reg);
+ XBT_INFO("Different num_reg (s1 = %u, s2 = %u)", s1->num_reg, s2->num_reg);
return 1;
}
case 0 :
/* Compare heapregion */
if(s1->regions[i]->size != s2->regions[i]->size){
- XBT_DEBUG("Different size of heap (s1 = %zu, s2 = %zu)", s1->regions[i]->size, s2->regions[i]->size);
+ XBT_INFO("Different size of heap (s1 = %zu, s2 = %zu)", s1->regions[i]->size, s2->regions[i]->size);
return 1;
}
if(s1->regions[i]->start_addr != s2->regions[i]->start_addr){
- XBT_DEBUG("Different start addr of heap (s1 = %p, s2 = %p)", s1->regions[i]->start_addr, s2->regions[i]->start_addr);
+ XBT_INFO("Different start addr of heap (s1 = %p, s2 = %p)", s1->regions[i]->start_addr, s2->regions[i]->start_addr);
return 1;
}
if(mmalloc_compare_heap((xbt_mheap_t)s1->regions[i]->data, (xbt_mheap_t)s2->regions[i]->data, &stacks1, &stacks2, &equals)){
- XBT_DEBUG("Different heap (mmalloc_compare)");
+ XBT_INFO("Different heap (mmalloc_compare)");
return 1;
}
heap1 = s1->regions[i]->data;
case 1 :
/* Compare data libsimgrid region */
if(s1->regions[i]->size != s2->regions[i]->size){
- XBT_DEBUG("Different size of libsimgrid (data) (s1 = %zu, s2 = %zu)", s1->regions[i]->size, s2->regions[i]->size);
+ XBT_INFO("Different size of libsimgrid (data) (s1 = %zu, s2 = %zu)", s1->regions[i]->size, s2->regions[i]->size);
return 1;
}
if(s1->regions[i]->start_addr != s2->regions[i]->start_addr){
- XBT_DEBUG("Different start addr of libsimgrid (data) (s1 = %p, s2 = %p)", s1->regions[i]->start_addr, s2->regions[i]->start_addr);
+ XBT_INFO("Different start addr of libsimgrid (data) (s1 = %p, s2 = %p)", s1->regions[i]->start_addr, s2->regions[i]->start_addr);
return 1;
}
if(data_libsimgrid_region_compare(s1->regions[i]->data, s2->regions[i]->data, s1->regions[i]->size) != 0){
- XBT_DEBUG("Different memcmp for data in libsimgrid");
+ XBT_INFO("Different memcmp for data in libsimgrid");
return 1;
}
break;
case 2 :
/* Compare data program region */
if(s1->regions[i]->size != s2->regions[i]->size){
- XBT_DEBUG("Different size of data program (s1 = %zu, s2 = %zu)", s1->regions[i]->size, s2->regions[i]->size);
+ XBT_INFO("Different size of data program (s1 = %zu, s2 = %zu)", s1->regions[i]->size, s2->regions[i]->size);
return 1;
}
if(s1->regions[i]->start_addr != s2->regions[i]->start_addr){
- XBT_DEBUG("Different start addr of data program (s1 = %p, s2 = %p)", s1->regions[i]->start_addr, s2->regions[i]->start_addr);
+ XBT_INFO("Different start addr of data program (s1 = %p, s2 = %p)", s1->regions[i]->start_addr, s2->regions[i]->start_addr);
return 1;
}
if(data_program_region_compare(s1->regions[i]->data, s2->regions[i]->data, s1->regions[i]->size) != 0){
- XBT_DEBUG("Different memcmp for data in program");
+ XBT_INFO("Different memcmp for data in program");
return 1;
}
break;
}
/* Stacks comparison */
- unsigned int cursor = 1;
+ unsigned int cursor = 0;
stack_region_t stack_region1, stack_region2;
void *sp1, *sp2;
- int diff = 0;
+ int diff = 0, diff_local = 0;
while(cursor < xbt_dynar_length(stacks1)){
- XBT_DEBUG("Stack %d", cursor + 1);
+ XBT_INFO("Stack %d", cursor + 1);
stack_region1 = (stack_region_t)(xbt_dynar_get_as(stacks1, cursor, stack_region_t));
stack_region2 = (stack_region_t)(xbt_dynar_get_as(stacks2, cursor, stack_region_t));
sp1 = ((mc_snapshot_stack_t)xbt_dynar_get_as(s1->stacks, cursor, mc_snapshot_stack_t))->stack_pointer;
sp2 = ((mc_snapshot_stack_t)xbt_dynar_get_as(s2->stacks, cursor, mc_snapshot_stack_t))->stack_pointer;
- diff += compare_stack(stack_region1, stack_region2, sp1, sp2, heap1, heap2, equals);
+ diff = compare_stack(stack_region1, stack_region2, sp1, sp2, heap1, heap2, equals);
+
+ if(diff >0){
+ diff_local = compare_local_variables(((mc_snapshot_stack_t)xbt_dynar_get_as(s1->stacks, cursor, mc_snapshot_stack_t))->local_variables->data, ((mc_snapshot_stack_t)xbt_dynar_get_as(s2->stacks, cursor, mc_snapshot_stack_t))->local_variables->data, equals);
+ if(diff_local > 0){
+ XBT_INFO("Hamming distance between stacks : %d", diff);
+ return 1;
+ }else{
+ XBT_INFO("Local variables are equals in stack %d", cursor + 1);
+ }
+ }else{
+ XBT_INFO("Same stacks");
+ }
cursor++;
}
- XBT_DEBUG("Hamming distance between stacks : %d", diff);
- if(diff>0)
- return 1;
-
return 0;
}
+static int compare_local_variables(char *s1, char *s2, xbt_dynar_t heap_equals){
+
+ xbt_dynar_t tokens1 = xbt_str_split(s1, NULL);
+ xbt_dynar_t tokens2 = xbt_str_split(s2, NULL);
+
+ xbt_dynar_t s_tokens1, s_tokens2;
+ unsigned int cursor = 0;
+ void *addr1, *addr2;
+
+ int diff = 0;
+
+ while(cursor < xbt_dynar_length(tokens1)){
+ s_tokens1 = xbt_str_split(xbt_dynar_get_as(tokens1, cursor, char *), "=");
+ s_tokens2 = xbt_str_split(xbt_dynar_get_as(tokens2, cursor, char *), "=");
+ if(xbt_dynar_length(s_tokens1) > 1 && xbt_dynar_length(s_tokens2) > 1){
+ if(strcmp(xbt_dynar_get_as(s_tokens1, 1, char *), xbt_dynar_get_as(s_tokens2, 1, char *)) != 0){
+ addr1 = (void *) strtoul(xbt_dynar_get_as(s_tokens1, 1, char *), NULL, 16);
+ addr2 = (void *) strtoul(xbt_dynar_get_as(s_tokens2, 1, char *), NULL, 16);
+ if(is_heap_equality(heap_equals, addr1, addr2) == 0){
+ XBT_INFO("Variable %s is different between stacks : %s - %s", xbt_dynar_get_as(s_tokens1, 0, char *), xbt_dynar_get_as(s_tokens1, 1, char *), xbt_dynar_get_as(s_tokens2, 1, char *));
+ diff++;
+ }
+ }
+ }
+ cursor++;
+ }
+
+ return diff;
+
+}
+
static int is_heap_equality(xbt_dynar_t equals, void *a1, void *a2){
unsigned int cursor = 0;
static int compare_stack(stack_region_t s1, stack_region_t s2, void *sp1, void *sp2, void *heap1, void *heap2, xbt_dynar_t equals){
- int k = 0, nb_diff = 0;
- long size_used1 = (long)s1->size - (long)((char*)sp1 - (char*)s1->address);
- long size_used2 = (long)s2->size - (long)((char*)sp2 - (char*)s2->address);
+ size_t k = 0, nb_diff = 0;
+ size_t size_used1 = s1->size - ((char*)sp1 - (char*)s1->address);
+ size_t size_used2 = s2->size - ((char*)sp2 - (char*)s2->address);
int pointer_align;
void *addr_pointed1 = NULL, *addr_pointed2 = NULL;
if(is_heap_equality(equals, addr_pointed1, addr_pointed2) == 0){
if((addr_pointed1 > std_heap) && (addr_pointed1 < (void *)((char *)std_heap + STD_HEAP_SIZE)) && (addr_pointed2 > std_heap) && (addr_pointed2 < (void *)((char *)std_heap + STD_HEAP_SIZE))){
if(is_free_area(addr_pointed1, (xbt_mheap_t)heap1) == 0 || is_free_area(addr_pointed2, (xbt_mheap_t)heap2) == 0){
- XBT_DEBUG("Difference at offset %d (%p - %p)", k, (char *)s1->address + s1->size - k, (char *)s2->address + s2->size - k);
+ //XBT_INFO("Difference at offset %zu (%p - %p)", k, (char *)s1->address + s1->size - k, (char *)s2->address + s2->size - k);
nb_diff++;
}
}else{
- XBT_DEBUG("Difference at offset %d (%p - %p)", k, (char *)s1->address + s1->size - k, (char *)s2->address + s2->size - k);
+ //XBT_INFO("Difference at offset %zu (%p - %p)", k, (char *)s1->address + s1->size - k, (char *)s2->address + s2->size - k);
nb_diff++;
}
}
}
}else{
- XBT_DEBUG("Different size used between stacks");
+ XBT_INFO("Different size used between stacks");
return 1;
}
return nb_diff;
}
-
-static int compare_local_variables(xbt_strbuff_t s1, xbt_strbuff_t s2){
-
- if(strcmp(s1->data, s2->data) != 0){
- XBT_DEBUG("%s", s1->data);
- XBT_DEBUG("%s", s2->data);
- return 1;
- }
-
- return 0;
-}
