-const char* get_memory_map_addr(void *addr){
-
- 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");
-
- if(addr == NULL){
- fclose(fp);
- return "nil";
- }
-
- 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_str_trim(line, NULL);
- xbt_str_strip_spaces(line);
- lfields = xbt_str_split(line,NULL);
-
- 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((addr > start_addr) && ( addr < end_addr)){
- free(line);
- fclose(fp);
- if(start_addr == std_heap)
- return "std_heap";
- if(start_addr == raw_heap)
- return "raw_heap";
- if(xbt_dynar_length(lfields) == 6)
- return xbt_dynar_get_as(lfields, xbt_dynar_length(lfields) - 1, char*);
- else
- return "Anonymous";
- }
-
- }
-
- free(line);
- fclose(fp);
- return "Unknown area";
-
-}
-
-int data_program_region_compare(void *d1, void *d2, size_t size){
- int distance = 0;
- int pointer_align;
- int i;
-
- for(i=0; i<size; i++){
- if(memcmp(((char *)d1) + i, ((char *)d2) + i, 1) != 0){
- fprintf(stderr,"Different byte (offset=%d) (%p - %p) in data program region\n", i, (char *)d1 + i, (char *)d2 + i);
- distance++;
- pointer_align = (i /sizeof(void *)) * sizeof(void *);
- fprintf(stderr, "Pointed address : %p (in %s) - %p (in %s)\n", *((void **)((char *)d1 + pointer_align)), get_memory_map_addr(*((void **)((char *)d1 + pointer_align))), *((void **)((char *)d2 + pointer_align)), get_memory_map_addr(*((void **)((char *)d2 + pointer_align))));
- }
- }
-
- fprintf(stderr, "Hamming distance between data program regions : %d\n", distance);
-
- return distance;
-}
-
-int data_libsimgrid_region_compare(void *d1, void *d2, size_t size){
- int distance = 0;
- int pointer_align;
- int i;
-
- for(i=0; i<size; i++){
- if(memcmp(((char *)d1) + i, ((char *)d2) + i, 1) != 0){
- fprintf(stderr, "Different byte (offset=%d) (%p - %p) in data libsimgrid region\n", i, (char *)d1 + i, (char *)d2 + i);
- distance++;
- pointer_align = (i /sizeof(void *)) * sizeof(void *);
- fprintf(stderr, "Pointed address : %p (in %s) - %p (in %s)\n", *((void **)((char *)d1 + pointer_align)), get_memory_map_addr(*((void **)((char *)d1 + pointer_align))), *((void **)((char *)d2 + pointer_align)), get_memory_map_addr(*((void **)((char *)d2 + pointer_align))));
- }
- }
-
- fprintf(stderr, "Hamming distance between data libsimgrid regions : %d\n", distance);
-
- return distance;
-}
-
-int snapshot_compare(mc_snapshot_t s1, mc_snapshot_t s2, void* s_heap, void* r_heap){
-
-
- if(s1->num_reg != s2->num_reg){
- XBT_DEBUG("Different num_reg (s1 = %u, s2 = %u)", s1->num_reg, s2->num_reg);
- return 1;
- }
-
- int i;
- int errors = 0;
-
- for(i=0 ; i< s1->num_reg ; i++){
-
- if(s1->regions[i]->type != s2->regions[i]->type){
- if(XBT_LOG_ISENABLED(mc_liveness, xbt_log_priority_debug)){
- XBT_DEBUG("Different type of region");
- errors++;
- }else{
- return 1;
- }
- }
-
- switch(s1->regions[i]->type){
- case 0:
- if(s1->regions[i]->size != s2->regions[i]->size){
- if(XBT_LOG_ISENABLED(mc_liveness, xbt_log_priority_debug)){
- XBT_DEBUG("Different size of heap (s1 = %zu, s2 = %zu)", s1->regions[i]->size, s2->regions[i]->size);
- errors++;
- }else{
- return 1;
- }
- }
- if(s1->regions[i]->start_addr != s2->regions[i]->start_addr){
- if(XBT_LOG_ISENABLED(mc_liveness, xbt_log_priority_debug)){
- XBT_DEBUG("Different start addr of heap (s1 = %p, s2 = %p)", s1->regions[i]->start_addr, s2->regions[i]->start_addr);
- errors++;
- }else{
- return 1;
- }
- }
- if(mmalloc_compare_heap(s1->regions[i]->data, s2->regions[i]->data, s_heap, r_heap)){
- if(XBT_LOG_ISENABLED(mc_liveness, xbt_log_priority_debug)){
- XBT_DEBUG("Different heap (mmalloc_compare)");
- errors++;
- }else{
- return 1;
- }
- }
- break;
- case 1 :
- if(s1->regions[i]->size != s2->regions[i]->size){
- if(XBT_LOG_ISENABLED(mc_liveness, xbt_log_priority_debug)){
- XBT_DEBUG("Different size of libsimgrid (s1 = %zu, s2 = %zu)", s1->regions[i]->size, s2->regions[i]->size);
- errors++;
- }else{
- return 1;
- }
- }
- if(s1->regions[i]->start_addr != s2->regions[i]->start_addr){
- if(XBT_LOG_ISENABLED(mc_liveness, xbt_log_priority_debug)){
- XBT_DEBUG("Different start addr of libsimgrid (s1 = %p, s2 = %p)", s1->regions[i]->start_addr, s2->regions[i]->start_addr);
- errors++;
- }else{
- return 1;
- }
- }
- if(data_libsimgrid_region_compare(s1->regions[i]->data, s2->regions[i]->data, s1->regions[i]->size) != 0){
- if(XBT_LOG_ISENABLED(mc_liveness, xbt_log_priority_debug)){
- XBT_DEBUG("Different memcmp for data in libsimgrid");
- errors++;
- }else{
- return 1;
- }
- }
- break;
- case 2 :
- if(s1->regions[i]->size != s2->regions[i]->size){
- if(XBT_LOG_ISENABLED(mc_liveness, xbt_log_priority_debug)){
- XBT_DEBUG("Different size of data program (s1 = %zu, s2 = %zu)", s1->regions[i]->size, s2->regions[i]->size);
- errors++;
- }else{
- return 1;
- }
- }
- if(s1->regions[i]->start_addr != s2->regions[i]->start_addr){
- if(XBT_LOG_ISENABLED(mc_liveness, xbt_log_priority_debug)){
- XBT_DEBUG("Different start addr of data program (s1 = %p, s2 = %p)", s1->regions[i]->start_addr, s2->regions[i]->start_addr);
- errors++;
- }else{
- return 1;
- }
- }
- if(data_program_region_compare(s1->regions[i]->data, s2->regions[i]->data, s1->regions[i]->size) != 0){
- if(XBT_LOG_ISENABLED(mc_liveness, xbt_log_priority_debug)){
- XBT_DEBUG("Different memcmp for data in program");
- errors++;
- }else{
- return 1;
- }
- }
- break;
- default:
- break;
- }
- }
-
- return (errors > 0);
-
-}
-