XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_compare, mc,
"Logging specific to mc_compare");
-static int data_program_region_compare(void *d1, void *d2, size_t size);
-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_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 size_t heap_ignore_size(void *address);
static void stack_region_free(stack_region_t s);
static void heap_equality_free(heap_equality_t e);
-static int compare_local_variables(char *s1, char *s2, xbt_dynar_t heap_equals);
+static int is_stack_ignore_variable(char *frame, char *var_name);
+static int compare_local_variables(char *s1, char *s2);
+static int compare_global_variables(int region_type, void *d1, void *d2);
-static size_t ignore(void *address){
+static size_t heap_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)
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){
- 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++;
- }
- }
- }
-
- XBT_DEBUG("Hamming distance between data program regions : %d", distance);
-
- return distance;
-}
+static int compare_global_variables(int region_type, void *d1, void *d2){
-static int data_libsimgrid_region_compare(void *d1, void *d2, size_t size){
- int distance = 0;
- size_t i = 0, ignore_size = 0;
- int pointer_align;
+ unsigned int cursor = 0;
+ size_t offset;
+ int i = 0;
+ global_variable_t current_var;
+ int pointer_align;
void *addr_pointed1 = NULL, *addr_pointed2 = NULL;
+ int res_compare = 0;
- 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;
+ if(region_type == 1){ /* libsimgrid */
+ xbt_dynar_foreach(mc_global_variables, cursor, current_var){
+ if(current_var->address < start_data_libsimgrid)
continue;
+ offset = (char *)current_var->address - (char *)start_data_libsimgrid;
+ i = 0;
+ while(i < current_var->size){
+ if(memcmp((char*)d1 + offset + i, (char*)d2 + offset + i, 1) != 0){
+ pointer_align = (i / sizeof(void*)) * sizeof(void*);
+ addr_pointed1 = *((void **)((char *)d1 + offset + pointer_align));
+ addr_pointed2 = *((void **)((char *)d2 + offset + pointer_align));
+ if((addr_pointed1 > start_plt_libsimgrid && addr_pointed1 < end_plt_libsimgrid)
+ || (addr_pointed2 > start_plt_libsimgrid && addr_pointed2 < end_plt_libsimgrid)){
+ i = current_var->size;
+ continue;
+ }else{
+ if((addr_pointed1 > std_heap) && ((char *)addr_pointed1 < (char *)std_heap + STD_HEAP_SIZE)
+ && (addr_pointed2 > std_heap) && ((char *)addr_pointed2 < (char *)std_heap + STD_HEAP_SIZE)){
+ res_compare = compare_area(addr_pointed1, addr_pointed2, NULL);
+ if(res_compare == 1){
+ #ifdef MC_VERBOSE
+ XBT_VERB("Different global variable in libsimgrid : %s at addresses %p - %p (size = %zu)", current_var->name, (char *)d1+offset, (char *)d2+offset, current_var->size);
+ #endif
+ return 1;
+ }
+ }else{
+ #ifdef MC_VERBOSE
+ XBT_VERB("Different global variable in libsimgrid : %s at addresses %p - %p (size = %zu)", current_var->name, (char *)d1+offset, (char *)d2+offset, current_var->size);
+ #endif
+ return 1;
+ }
+
+ }
+ }
+ i++;
}
- 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_libsimgrid && addr_pointed1 < end_plt_libsimgrid) || (addr_pointed2 > start_plt_libsimgrid && addr_pointed2 < end_plt_libsimgrid)){
- continue;
- }else if(addr_pointed1 >= raw_heap && addr_pointed1 <= end_raw_heap && addr_pointed2 >= raw_heap && addr_pointed2 <= end_raw_heap){
- continue;
- }else{
- XBT_DEBUG("Different byte (offset=%zu) (%p - %p) in data libsimgrid region", i, (char *)d1 + i, (char *)d2 + i);
- XBT_DEBUG("Addresses pointed : %p - %p\n", addr_pointed1, addr_pointed2);
- distance++;
+ }
+ }else{ /* binary */
+ xbt_dynar_foreach(mc_global_variables, cursor, current_var){
+ if(current_var->address > start_data_libsimgrid)
+ break;
+ offset = (char *)current_var->address - (char *)start_data_binary;
+ i = 0;
+ while(i < current_var->size){
+ if(memcmp((char*)d1 + offset + i, (char*)d2 + offset + i, 1) != 0){
+ pointer_align = (i / sizeof(void*)) * sizeof(void*);
+ addr_pointed1 = *((void **)((char *)d1 + offset + pointer_align));
+ addr_pointed2 = *((void **)((char *)d2 + offset + pointer_align));
+ if((addr_pointed1 > start_plt_binary && addr_pointed1 < end_plt_binary) || (addr_pointed2 > start_plt_binary && addr_pointed2 < end_plt_binary)){
+ i = current_var->size;
+ continue;
+ }else{
+ if((addr_pointed1 > std_heap) && ((char *)addr_pointed1 < (char *)std_heap + STD_HEAP_SIZE) && (addr_pointed2 > std_heap) && ((char *)addr_pointed2 < (char *)std_heap + STD_HEAP_SIZE)){
+ res_compare = compare_area(addr_pointed1, addr_pointed2, NULL);
+ if(res_compare == 1){
+ #ifdef MC_VERBOSE
+ XBT_VERB("Different global variable in binary : %s at addresses %p - %p (size = %zu)", current_var->name, (char *)d1+offset, (char *)d2+offset, current_var->size);
+ #endif
+ return 1;
+ }
+ }else{
+ #ifdef MC_VERBOSE
+ XBT_VERB("Different global variable in binary : %s at addresses %p - %p (size = %zu)", current_var->name, (char *)d1+offset, (char *)d2+offset, current_var->size);
+ #endif
+ return 1;
+ }
+ }
+ }
+ i++;
}
+
}
}
-
- XBT_DEBUG("Hamming distance between data libsimgrid regions : %d", distance); fflush(NULL);
-
- return distance;
+
+ return 0;
}
static int heap_region_compare(void *d1, void *d2, size_t size){
- int distance = 0;
size_t i = 0;
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 heap region", i, (char *)d1 + i, (char *)d2 + i);
- distance++;
+ if(XBT_LOG_ISENABLED(mc_compare, xbt_log_priority_verbose)){
+ XBT_VERB("Different byte (offset=%zu) (%p - %p) in heap region", i, (char *)d1 + i, (char *)d2 + i);
+ }
+ return 1;
}
}
- XBT_DEBUG("Hamming distance between heap regions : %d (total size : %zu)", distance, size);
-
- return distance;
+ return 0;
}
static void stack_region_free(stack_region_t s){
}
static void heap_equality_free(heap_equality_t e){
- if(e){
- xbt_free(e);
- }
+ xbt_free(e);
}
void heap_equality_free_voidp(void *e){
heap_equality_free((heap_equality_t) * (void **) e);
}
+int SIMIX_pre_mc_compare_snapshots(smx_simcall_t simcall,
+ mc_snapshot_t s1, mc_snapshot_t s2){
+ return snapshot_compare(s1, s2);
+}
+
int snapshot_compare(mc_snapshot_t s1, mc_snapshot_t s2){
- raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
+ int raw_mem = (mmalloc_get_current_heap() == raw_heap);
MC_SET_RAW_MEM;
+
+ int errors = 0;
- int errors = 0, i;
- xbt_dynar_t stacks1 = xbt_dynar_new(sizeof(stack_region_t), stack_region_free_voidp);
- xbt_dynar_t stacks2 = xbt_dynar_new(sizeof(stack_region_t), stack_region_free_voidp);
- xbt_dynar_t equals = xbt_dynar_new(sizeof(heap_equality_t), heap_equality_free_voidp);
+ xbt_os_timer_t global_timer = xbt_os_timer_new();
+ xbt_os_timer_t timer = xbt_os_timer_new();
- void *heap1 = NULL, *heap2 = NULL;
-
- if(s1->num_reg != s2->num_reg){
- XBT_INFO("Different num_reg (s1 = %u, s2 = %u)", s1->num_reg, s2->num_reg);
- return 1;
+ xbt_os_timer_start(global_timer);
+
+ #ifdef MC_DEBUG
+ xbt_os_timer_start(timer);
+ #endif
+
+ /* Compare number of processes */
+ if(s1->nb_processes != s2->nb_processes){
+ #ifdef MC_DEBUG
+ xbt_os_timer_stop(timer);
+ mc_comp_times->nb_processes_comparison_time = xbt_os_timer_elapsed(timer);
+ XBT_DEBUG("Different number of processes : %d - %d", s1->nb_processes, s2->nb_processes);
+ errors++;
+ #else
+ #ifdef MC_VERBOSE
+ XBT_VERB("Different number of processes : %d - %d", s1->nb_processes, s2->nb_processes);
+ #endif
+
+ xbt_os_timer_free(timer);
+ xbt_os_timer_stop(global_timer);
+ mc_snapshot_comparison_time = xbt_os_timer_elapsed(global_timer);
+ xbt_os_timer_free(global_timer);
+
+ if(!raw_mem)
+ MC_UNSET_RAW_MEM;
+
+ return 1;
+ #endif
}
- for(i=0 ; i< s1->num_reg ; i++){
-
- if(s1->regions[i]->type != s2->regions[i]->type){
- XBT_INFO("Different type of region");
+ #ifdef MC_DEBUG
+ xbt_os_timer_start(timer);
+ #endif
+
+ /* Compare number of bytes used in each heap */
+ if(s1->heap_bytes_used != s2->heap_bytes_used){
+ #ifdef MC_DEBUG
+ xbt_os_timer_stop(timer);
+ mc_comp_times->bytes_used_comparison_time = xbt_os_timer_elapsed(timer);
+ XBT_DEBUG("Different number of bytes used in each heap : %zu - %zu", s1->heap_bytes_used, s2->heap_bytes_used);
errors++;
- }
-
- switch(s1->regions[i]->type){
- case 0 :
- /* Compare heapregion */
- if(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);
- xbt_dynar_free(&stacks1);
- xbt_dynar_free(&stacks2);
- xbt_dynar_free(&equals);
- if(!raw_mem_set)
- MC_UNSET_RAW_MEM;
- return 1;
- }
- if(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);
- xbt_dynar_free(&stacks1);
- xbt_dynar_free(&stacks2);
- xbt_dynar_free(&equals);
- if(!raw_mem_set)
- MC_UNSET_RAW_MEM;
- return 1;
- }
- if(mmalloc_compare_heap((xbt_mheap_t)s1->regions[i]->data, (xbt_mheap_t)s2->regions[i]->data, &stacks1, &stacks2, &equals)){
- XBT_INFO("Different heap (mmalloc_compare)");
- xbt_dynar_free(&stacks1);
- xbt_dynar_free(&stacks2);
- xbt_dynar_free(&equals);
- if(!raw_mem_set)
- MC_UNSET_RAW_MEM;
- return 1;
- }
- heap1 = s1->regions[i]->data;
- heap2 = s2->regions[i]->data;
- break;
- case 1 :
- /* Compare data libsimgrid region */
- if(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);
- xbt_dynar_free(&stacks1);
- xbt_dynar_free(&stacks2);
- xbt_dynar_free(&equals);
- if(!raw_mem_set)
- MC_UNSET_RAW_MEM;
- return 1;
- }
- if(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);
- xbt_dynar_free(&stacks1);
- xbt_dynar_free(&stacks2);
- xbt_dynar_free(&equals);
- if(!raw_mem_set)
- MC_UNSET_RAW_MEM;
- return 1;
- }
- if(data_libsimgrid_region_compare(s1->regions[i]->data, s2->regions[i]->data, s1->regions[i]->size) != 0){
- XBT_INFO("Different memcmp for data in libsimgrid");
- xbt_dynar_free(&stacks1);
- xbt_dynar_free(&stacks2);
- xbt_dynar_free(&equals);
- if(!raw_mem_set)
- MC_UNSET_RAW_MEM;
- return 1;
- }
- break;
-
- case 2 :
- /* Compare data program region */
- if(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);
- xbt_dynar_free(&stacks1);
- xbt_dynar_free(&stacks2);
- xbt_dynar_free(&equals);
- if(!raw_mem_set)
- MC_UNSET_RAW_MEM;
- return 1;
- }
- if(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);
- xbt_dynar_free(&stacks1);
- xbt_dynar_free(&stacks2);
- xbt_dynar_free(&equals);
- if(!raw_mem_set)
- MC_UNSET_RAW_MEM;
- return 1;
- }
- if(data_program_region_compare(s1->regions[i]->data, s2->regions[i]->data, s1->regions[i]->size) != 0){
- XBT_INFO("Different memcmp for data in program");
- xbt_dynar_free(&stacks1);
- xbt_dynar_free(&stacks2);
- xbt_dynar_free(&equals);
- if(!raw_mem_set)
- MC_UNSET_RAW_MEM;
- return 1;
+ #else
+ #ifdef MC_VERBOSE
+ XBT_VERB("Different number of bytes used in each heap : %zu - %zu", s1->heap_bytes_used, s2->heap_bytes_used);
+ #endif
+
+ xbt_os_timer_free(timer);
+ xbt_os_timer_stop(global_timer);
+ mc_snapshot_comparison_time = xbt_os_timer_elapsed(global_timer);
+ xbt_os_timer_free(global_timer);
+
+ if(!raw_mem)
+ MC_UNSET_RAW_MEM;
+
+ return 1;
+ #endif
+ }else{
+ #ifdef MC_DEBUG
+ xbt_os_timer_stop(timer);
+ #endif
+ }
+
+ #ifdef MC_DEBUG
+ xbt_os_timer_start(timer);
+ #endif
+
+ /* Compare size of stacks */
+ int i = 0;
+ size_t size_used1, size_used2;
+ int is_diff = 0;
+ while(i < xbt_dynar_length(s1->stacks)){
+ size_used1 = s1->stack_sizes[i];
+ size_used2 = s2->stack_sizes[i];
+ if(size_used1 != size_used2){
+ #ifdef MC_DEBUG
+ if(is_diff == 0){
+ xbt_os_timer_stop(timer);
+ mc_comp_times->stacks_sizes_comparison_time = xbt_os_timer_elapsed(timer);
}
- break;
+ XBT_DEBUG("Different size used in stacks : %zu - %zu", size_used1, size_used2);
+ errors++;
+ is_diff = 1;
+ #else
+ #ifdef MC_VERBOSE
+ XBT_VERB("Different size used in stacks : %zu - %zu", size_used1, size_used2);
+ #endif
+ xbt_os_timer_free(timer);
+ xbt_os_timer_stop(global_timer);
+ mc_snapshot_comparison_time = xbt_os_timer_elapsed(global_timer);
+ xbt_os_timer_free(global_timer);
+
+ if(!raw_mem)
+ MC_UNSET_RAW_MEM;
+
+ return 1;
+ #endif
}
+ i++;
+ }
+
+ #ifdef MC_DEBUG
+ if(is_diff == 0)
+ xbt_os_timer_stop(timer);
+ xbt_os_timer_start(timer);
+ #endif
+
+ /* Init heap information used in heap comparison algorithm */
+ init_heap_information((xbt_mheap_t)s1->regions[0]->data, (xbt_mheap_t)s2->regions[0]->data, s1->to_ignore, s2->to_ignore);
+
+ /* Compare binary global variables */
+ is_diff = compare_global_variables(2, s1->regions[2]->data, s2->regions[2]->data);
+ if(is_diff != 0){
+ #ifdef MC_DEBUG
+ xbt_os_timer_stop(timer);
+ mc_comp_times->binary_global_variables_comparison_time = xbt_os_timer_elapsed(timer);
+ XBT_DEBUG("Different global variables in binary");
+ errors++;
+ #else
+ #ifdef MC_VERBOSE
+ XBT_VERB("Different global variables in binary");
+ #endif
+
+ xbt_os_timer_free(timer);
+ xbt_os_timer_stop(global_timer);
+ mc_snapshot_comparison_time = xbt_os_timer_elapsed(global_timer);
+ xbt_os_timer_free(global_timer);
+
+ if(!raw_mem)
+ MC_UNSET_RAW_MEM;
+ return 1;
+ #endif
}
- /* Stacks comparison */
- unsigned int cursor = 0;
- stack_region_t stack_region1, stack_region2;
- void *sp1, *sp2;
- int diff = 0, diff_local = 0;
-
- while(cursor < xbt_dynar_length(stacks1)){
- 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);
-
- 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);
+ #ifdef MC_DEBUG
+ if(is_diff == 0)
+ xbt_os_timer_stop(timer);
+ xbt_os_timer_start(timer);
+ #endif
+
+ /* Compare libsimgrid global variables */
+ is_diff = compare_global_variables(1, s1->regions[1]->data, s2->regions[1]->data);
+ if(is_diff != 0){
+ #ifdef MC_DEBUG
+ xbt_os_timer_stop(timer);
+ mc_comp_times->libsimgrid_global_variables_comparison_time = xbt_os_timer_elapsed(timer);
+ XBT_DEBUG("Different global variables in libsimgrid");
+ errors++;
+ #else
+ #ifdef MC_VERBOSE
+ XBT_VERB("Different global variables in libsimgrid");
+ #endif
+
+ xbt_os_timer_free(timer);
+ xbt_os_timer_stop(global_timer);
+ mc_snapshot_comparison_time = xbt_os_timer_elapsed(global_timer);
+ xbt_os_timer_free(global_timer);
+
+ if(!raw_mem)
+ MC_UNSET_RAW_MEM;
+
+ return 1;
+ #endif
+ }
+
+ #ifdef MC_DEBUG
+ if(is_diff == 0)
+ xbt_os_timer_stop(timer);
+ xbt_os_timer_start(timer);
+ #endif
+
+ /* Stacks comparison */
+ unsigned int cursor = 0;
+ int diff_local = 0;
+ is_diff = 0;
+
+ while(cursor < xbt_dynar_length(s1->stacks)){
+ 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);
if(diff_local > 0){
- XBT_INFO("Hamming distance between stacks : %d", diff);
- xbt_dynar_free(&stacks1);
- xbt_dynar_free(&stacks2);
- xbt_dynar_free(&equals);
- if(!raw_mem_set)
- MC_UNSET_RAW_MEM;
- return 1;
- }else{
- XBT_INFO("Local variables are equals in stack %d", cursor + 1);
+ #ifdef MC_DEBUG
+ if(is_diff == 0){
+ xbt_os_timer_stop(timer);
+ mc_comp_times->stacks_comparison_time = xbt_os_timer_elapsed(timer);
+ }
+ XBT_DEBUG("Different local variables between stacks %d", cursor + 1);
+ errors++;
+ is_diff = 1;
+ #else
+
+ #ifdef MC_VERBOSE
+ XBT_VERB("Different local variables between stacks %d", cursor + 1);
+ #endif
+
+ reset_heap_information();
+ xbt_os_timer_free(timer);
+ xbt_os_timer_stop(global_timer);
+ mc_snapshot_comparison_time = xbt_os_timer_elapsed(global_timer);
+ xbt_os_timer_free(global_timer);
+
+ if(!raw_mem)
+ MC_UNSET_RAW_MEM;
+
+ return 1;
+ #endif
}
- }else{
- XBT_INFO("Same stacks");
+ cursor++;
}
- cursor++;
+
+ #ifdef MC_DEBUG
+ xbt_os_timer_start(timer);
+ #endif
+
+ /* Compare heap */
+
+ if(mmalloc_compare_heap((xbt_mheap_t)s1->regions[0]->data, (xbt_mheap_t)s2->regions[0]->data)){
+
+ #ifdef MC_DEBUG
+ xbt_os_timer_stop(timer);
+ mc_comp_times->heap_comparison_time = xbt_os_timer_elapsed(timer);
+ XBT_DEBUG("Different heap (mmalloc_compare)");
+ errors++;
+ #else
+
+ xbt_os_timer_free(timer);
+
+ #ifdef MC_VERBOSE
+ XBT_VERB("Different heap (mmalloc_compare)");
+ #endif
+
+ reset_heap_information();
+ xbt_os_timer_stop(global_timer);
+ mc_snapshot_comparison_time = xbt_os_timer_elapsed(global_timer);
+ xbt_os_timer_free(global_timer);
+
+ if(!raw_mem)
+ MC_UNSET_RAW_MEM;
+
+ return 1;
+ #endif
+ }else{
+ #ifdef MC_DEBUG
+ xbt_os_timer_stop(timer);
+ #endif
}
- xbt_dynar_free(&stacks1);
- xbt_dynar_free(&stacks2);
- xbt_dynar_free(&equals);
- if(!raw_mem_set)
+ reset_heap_information();
+
+ xbt_os_timer_free(timer);
+
+ #ifdef MC_VERBOSE
+ xbt_os_timer_stop(global_timer);
+ mc_snapshot_comparison_time = xbt_os_timer_elapsed(global_timer);
+ #endif
+
+ xbt_os_timer_free(global_timer);
+
+ #ifdef MC_DEBUG
+ print_comparison_times();
+ #endif
+
+ if(!raw_mem)
MC_UNSET_RAW_MEM;
- return 0;
+
+ return errors > 0;
}
-static int compare_local_variables(char *s1, char *s2, xbt_dynar_t heap_equals){
+static int is_stack_ignore_variable(char *frame, char *var_name){
+
+ unsigned int cursor = 0;
+ int start = 0;
+ int end = xbt_dynar_length(mc_stack_comparison_ignore) - 1;
+ mc_stack_ignore_variable_t current_var;
+
+ while(start <= end){
+ cursor = (start + end) / 2;
+ current_var = (mc_stack_ignore_variable_t)xbt_dynar_get_as(mc_stack_comparison_ignore, cursor, mc_stack_ignore_variable_t);
+ if(strcmp(current_var->frame, frame) == 0 || strcmp(current_var->frame, "*") == 0){
+ if(strcmp(current_var->var_name, var_name) == 0)
+ return 1;
+ if(strcmp(current_var->var_name, var_name) < 0)
+ start = cursor + 1;
+ if(strcmp(current_var->var_name, var_name) > 0)
+ end = cursor - 1;
+ }else if(strcmp(current_var->frame, frame) < 0){
+ start = cursor + 1;
+ }else if(strcmp(current_var->frame, frame) > 0){
+ end = cursor - 1;
+ }
+ }
+
+ return 0;
+}
+
+static int compare_local_variables(char *s1, char *s2){
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;
+ char *frame_name1 = NULL, *frame_name2 = NULL;
+ int res_compare = 0;
+
+ #ifdef MC_VERBOSE
+ char *var_name;
+ #endif
- 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++;
+ #ifdef MC_VERBOSE
+ var_name = xbt_dynar_get_as(s_tokens1, 0, char *);
+ #endif
+ if((strcmp(xbt_dynar_get_as(s_tokens1, 0, char *), "frame_name") == 0) && (strcmp(xbt_dynar_get_as(s_tokens2, 0, char *), "frame_name") == 0)){
+ xbt_free(frame_name1);
+ xbt_free(frame_name2);
+ frame_name1 = strdup(xbt_dynar_get_as(s_tokens1, 1, char *));
+ frame_name2 = strdup(xbt_dynar_get_as(s_tokens2, 1, char *));
+ }
+ 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(addr1 > std_heap && (char *)addr1 <= (char *)std_heap + STD_HEAP_SIZE && addr2 > std_heap && (char *)addr2 <= (char *)std_heap + STD_HEAP_SIZE){
+ res_compare = compare_area(addr1, addr2, NULL);
+ if(res_compare == 1){
+ if(is_stack_ignore_variable(frame_name1, xbt_dynar_get_as(s_tokens1, 0, char *)) && is_stack_ignore_variable(frame_name2, xbt_dynar_get_as(s_tokens2, 0, char *))){
+ xbt_dynar_free(&s_tokens1);
+ xbt_dynar_free(&s_tokens2);
+ cursor++;
+ continue;
+ }else {
+ #ifdef MC_VERBOSE
+ XBT_VERB("Different local variable : %s at addresses %p - %p", var_name, addr1, addr2);
+ #endif
+ xbt_dynar_free(&s_tokens1);
+ xbt_dynar_free(&s_tokens2);
+ xbt_dynar_free(&tokens1);
+ xbt_dynar_free(&tokens2);
+ xbt_free(frame_name1);
+ xbt_free(frame_name2);
+ return 1;
+ }
+ }
+ }else{
+ if(strcmp(xbt_dynar_get_as(s_tokens1, 1, char *), xbt_dynar_get_as(s_tokens2, 1, char *)) != 0){
+ if(is_stack_ignore_variable(frame_name1, xbt_dynar_get_as(s_tokens1, 0, char *)) && is_stack_ignore_variable(frame_name2, xbt_dynar_get_as(s_tokens2, 0, char *))){
+ xbt_dynar_free(&s_tokens1);
+ xbt_dynar_free(&s_tokens2);
+ cursor++;
+ continue;
+ }else {
+ #ifdef MC_VERBOSE
+ XBT_VERB("Different local variable : %s (%s - %s)", var_name, xbt_dynar_get_as(s_tokens1, 1, char *), xbt_dynar_get_as(s_tokens2, 1, char *));
+ #endif
+ xbt_dynar_free(&s_tokens1);
+ xbt_dynar_free(&s_tokens2);
+ xbt_dynar_free(&tokens1);
+ xbt_dynar_free(&tokens2);
+ xbt_free(frame_name1);
+ xbt_free(frame_name2);
+ return 1;
+ }
}
}
}
xbt_dynar_free(&s_tokens1);
xbt_dynar_free(&s_tokens2);
+
cursor++;
}
+ xbt_free(frame_name1);
+ xbt_free(frame_name2);
xbt_dynar_free(&tokens1);
xbt_dynar_free(&tokens2);
- return diff;
+ return 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 MC_compare_snapshots(void *s1, void *s2){
- 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);
+ MC_ignore_stack("self", "simcall_BODY_mc_snapshot");
- int pointer_align;
- void *addr_pointed1 = NULL, *addr_pointed2 = NULL;
+ return simcall_mc_compare_snapshots(s1, s2);
- if(size_used1 == size_used2){
-
- while(k < size_used1){
- if(memcmp((char *)s1->address + s1->size - k, (char *)s2->address + s2->size - k, 1) != 0){
- pointer_align = ((size_used1 - k) / sizeof(void*)) * sizeof(void*);
- addr_pointed1 = *((void **)(((char*)s1->address + (s1->size - size_used1)) + pointer_align));
- addr_pointed2 = *((void **)(((char*)s2->address + (s2->size - size_used2)) + pointer_align));
- 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_INFO("Difference at offset %zu (%p - %p)", k, (char *)s1->address + s1->size - k, (char *)s2->address + s2->size - k);
- nb_diff++;
- }
- }else{
- //XBT_INFO("Difference at offset %zu (%p - %p)", k, (char *)s1->address + s1->size - k, (char *)s2->address + s2->size - k);
- nb_diff++;
- }
- }
- }
- k++;
- }
-
- }else{
- XBT_INFO("Different size used between stacks");
- return 1;
- }
+}
- return nb_diff;
+void print_comparison_times(){
+ XBT_DEBUG("*** Comparison times ***");
+ XBT_DEBUG("- Nb processes : %f", mc_comp_times->nb_processes_comparison_time);
+ XBT_DEBUG("- Nb bytes used : %f", mc_comp_times->bytes_used_comparison_time);
+ XBT_DEBUG("- Stacks sizes : %f", mc_comp_times->stacks_sizes_comparison_time);
+ XBT_DEBUG("- Binary global variables : %f", mc_comp_times->binary_global_variables_comparison_time);
+ XBT_DEBUG("- Libsimgrid global variables : %f", mc_comp_times->libsimgrid_global_variables_comparison_time);
+ XBT_DEBUG("- Heap : %f", mc_comp_times->heap_comparison_time);
+ XBT_DEBUG("- Stacks : %f", mc_comp_times->stacks_comparison_time);
}
