}
-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){
- free(line);
- 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;
- char *pointed_address1 = NULL, *pointed_address2 = NULL;
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 *);
- pointed_address1 = strdup(get_memory_map_addr(*((void **)((char *)d1 + pointer_align))));
- pointed_address2 = strdup(get_memory_map_addr(*((void **)((char *)d2 + pointer_align))));
- fprintf(stderr, "Pointed address : %p (in %s) - %p (in %s)\n", *((void **)((char *)d1 + pointer_align)), pointed_address1, *((void **)((char *)d2 + pointer_align)), pointed_address2);
- /* FIXME : compare values in pointed address thanks to DWARF */
}
}
fprintf(stderr, "Hamming distance between data program regions : %d\n", distance);
- free(pointed_address1);
- free(pointed_address2);
-
return distance;
}
int data_libsimgrid_region_compare(void *d1, void *d2, size_t size){
int distance = 0;
- int pointer_align;
int i;
- char *pointed_address1 = NULL, *pointed_address2 = NULL;
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 *);
- pointed_address1 = strdup(get_memory_map_addr(*((void **)((char *)d1 + pointer_align))));
- pointed_address2 = strdup(get_memory_map_addr(*((void **)((char *)d2 + pointer_align))));
- fprintf(stderr, "Pointed address : %p (in %s) - %p (in %s)\n", *((void **)((char *)d1 + pointer_align)), pointed_address1, *((void **)((char *)d2 + pointer_align)), pointed_address2);
- /* FIXME : compare values in pointed address thanks to DWARF */
}
}
fprintf(stderr, "Hamming distance between data libsimgrid regions : %d\n", distance);
-
- free(pointed_address1);
- free(pointed_address2);
return distance;
}
