+}
+
+/************ DWARF ***********/
+
+xbt_dict_t MC_get_location_list(const char *elf_file){
+
+ char *command = bprintf("objdump -Wo %s", elf_file);
+
+ FILE *fp = popen(command, "r");
+
+ if(fp == NULL){
+ perror("popen for objdump failed");
+ xbt_abort();
+ }
+
+ int debug = 0; /*Detect if the program has been compiled with -g */
+
+ xbt_dict_t location_list = xbt_dict_new_homogeneous(NULL);
+ char *line = NULL, *loc_expr = NULL;
+ ssize_t read;
+ size_t n = 0;
+ int cursor_remove;
+ xbt_dynar_t split = NULL;
+
+ while ((read = getline(&line, &n, fp)) != -1) {
+
+ /* Wipeout the new line character */
+ line[read - 1] = '\0';
+
+ xbt_str_trim(line, NULL);
+
+ if(n == 0)
+ continue;
+
+ if(strlen(line) == 0)
+ continue;
+
+ if(debug == 0){
+
+ if(strncmp(line, elf_file, strlen(elf_file)) == 0)
+ continue;
+
+ if(strncmp(line, "Contents", 8) == 0)
+ continue;
+
+ if(strncmp(line, "Offset", 6) == 0){
+ debug = 1;
+ continue;
+ }
+ }
+
+ if(debug == 0){
+ XBT_INFO("Your program must be compiled with -g");
+ xbt_abort();
+ }
+
+ xbt_dynar_t loclist = xbt_dynar_new(sizeof(dw_location_entry_t), NULL);
+
+ xbt_str_strip_spaces(line);
+ split = xbt_str_split(line, " ");
+
+ while(read != -1 && strcmp("<End", (char *)xbt_dynar_get_as(split, 1, char *)) != 0){
+
+ dw_location_entry_t new_entry = xbt_new0(s_dw_location_entry_t, 1);
+ new_entry->lowpc = strtoul((char *)xbt_dynar_get_as(split, 1, char *), NULL, 16);
+ new_entry->highpc = strtoul((char *)xbt_dynar_get_as(split, 2, char *), NULL, 16);
+
+ cursor_remove =0;
+ while(cursor_remove < 3){
+ xbt_dynar_remove_at(split, 0, NULL);
+ cursor_remove++;
+ }
+
+ loc_expr = xbt_str_join(split, " ");
+ xbt_str_ltrim(loc_expr, "(");
+ xbt_str_rtrim(loc_expr, ")");
+ new_entry->location = get_location(NULL, loc_expr);
+
+ xbt_dynar_push(loclist, &new_entry);
+
+ xbt_dynar_free(&split);
+ free(loc_expr);
+
+ read = getline(&line, &n, fp);
+ if(read != -1){
+ line[read - 1] = '\0';
+ xbt_str_strip_spaces(line);
+ split = xbt_str_split(line, " ");
+ }
+
+ }
+
+
+ char *key = bprintf("%d", (int)strtoul((char *)xbt_dynar_get_as(split, 0, char *), NULL, 16));
+ xbt_dict_set(location_list, key, loclist, NULL);
+
+ xbt_dynar_free(&split);
+
+ }
+
+ free(line);
+ free(command);
+ pclose(fp);
+
+ return location_list;
+}
+
+static dw_frame_t get_frame_by_offset(xbt_dict_t all_variables, unsigned long int offset){
+
+ xbt_dict_cursor_t cursor = NULL;
+ char *name;
+ dw_frame_t res;
+
+ xbt_dict_foreach(all_variables, cursor, name, res) {
+ if(offset >= res->start && offset < res->end)
+ return res;
+ }
+
+ return NULL;
+
+}
+
+void MC_get_local_variables(const char *elf_file, xbt_dict_t location_list, xbt_dict_t *all_variables){
+
+ char *command = bprintf("objdump -Wi %s", elf_file);
+
+ FILE *fp = popen(command, "r");
+
+ if(fp == NULL)
+ perror("popen for objdump failed");
+
+ char *line = NULL, *origin, *abstract_origin, *current_frame = NULL;
+ ssize_t read =0;
+ size_t n = 0;
+ int valid_variable = 1;
+ char *node_type = NULL, *location_type = NULL, *variable_name = NULL, *loc_expr = NULL;
+ xbt_dynar_t split = NULL, split2 = NULL;
+
+ xbt_dict_t variables_origin = xbt_dict_new_homogeneous(NULL);
+ xbt_dict_t subprograms_origin = xbt_dict_new_homogeneous(NULL);
+ char *subprogram_name = NULL, *subprogram_start = NULL, *subprogram_end = NULL;
+ int new_frame = 0, new_variable = 0;
+ dw_frame_t variable_frame, subroutine_frame = NULL;
+
+ read = getline(&line, &n, fp);
+
+ while (read != -1) {
+
+ if(n == 0){
+ read = getline(&line, &n, fp);
+ continue;
+ }
+
+ /* Wipeout the new line character */
+ line[read - 1] = '\0';
+
+ if(strlen(line) == 0){
+ read = getline(&line, &n, fp);
+ continue;
+ }
+
+ xbt_str_ltrim(line, NULL);
+ xbt_str_strip_spaces(line);
+
+ if(line[0] != '<'){
+ read = getline(&line, &n, fp);
+ continue;
+ }
+
+ xbt_dynar_free(&split);
+ split = xbt_str_split(line, " ");
+
+ /* Get node type */
+ node_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
+
+ if(strcmp(node_type, "(DW_TAG_subprogram)") == 0){ /* New frame */
+
+ dw_frame_t frame = NULL;
+
+ strtok(xbt_dynar_get_as(split, 0, char *), "<");
+ subprogram_start = strdup(strtok(NULL, "<"));
+ xbt_str_rtrim(subprogram_start, ">:");
+
+ read = getline(&line, &n, fp);
+
+ while(read != -1){
+
+ if(n == 0){
+ read = getline(&line, &n, fp);
+ continue;
+ }
+
+ /* Wipeout the new line character */
+ line[read - 1] = '\0';
+
+ if(strlen(line) == 0){
+ read = getline(&line, &n, fp);
+ continue;
+ }
+
+ xbt_dynar_free(&split);
+ xbt_str_rtrim(line, NULL);
+ xbt_str_strip_spaces(line);
+ split = xbt_str_split(line, " ");
+
+ node_type = xbt_dynar_get_as(split, 1, char *);
+
+ if(strncmp(node_type, "DW_AT_", 6) != 0)
+ break;
+
+ if(strcmp(node_type, "DW_AT_sibling") == 0){
+
+ subprogram_end = strdup(xbt_dynar_get_as(split, 3, char*));
+ xbt_str_ltrim(subprogram_end, "<0x");
+ xbt_str_rtrim(subprogram_end, ">");
+
+ }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){ /* Frame already in dict */
+
+ new_frame = 0;
+ abstract_origin = strdup(xbt_dynar_get_as(split, 2, char*));
+ xbt_str_ltrim(abstract_origin, "<0x");
+ xbt_str_rtrim(abstract_origin, ">");
+ subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, abstract_origin);
+ frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
+
+ }else if(strcmp(node_type, "DW_AT_name") == 0){
+
+ new_frame = 1;
+ free(current_frame);
+ frame = xbt_new0(s_dw_frame_t, 1);
+ frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
+ frame->variables = xbt_dict_new_homogeneous(NULL);
+ frame->frame_base = xbt_new0(s_dw_location_t, 1);
+ current_frame = strdup(frame->name);
+
+ xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
+
+ }else if(strcmp(node_type, "DW_AT_frame_base") == 0){
+
+ location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
+
+ if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
+
+ frame->frame_base = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
+
+ }else{
+
+ xbt_str_strip_spaces(line);
+ split2 = xbt_str_split(line, "(");
+ xbt_dynar_remove_at(split2, 0, NULL);
+ loc_expr = xbt_str_join(split2, " ");
+ xbt_str_rtrim(loc_expr, ")");
+ frame->frame_base = get_location(NULL, loc_expr);
+ xbt_dynar_free(&split2);
+
+ }
+
+ }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
+
+ if(frame != NULL)
+ frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
+
+ }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
+
+ if(frame != NULL)
+ frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
+
+ }else if(strcmp(node_type, "DW_AT_MIPS_linkage_name:") == 0){
+
+ free(frame->name);
+ free(current_frame);
+ frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
+ current_frame = strdup(frame->name);
+ xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
+
+ }
+
+ read = getline(&line, &n, fp);
+
+ }
+
+ if(new_frame == 1){
+ frame->start = strtoul(subprogram_start, NULL, 16);
+ if(subprogram_end != NULL)
+ frame->end = strtoul(subprogram_end, NULL, 16);
+ xbt_dict_set(*all_variables, frame->name, frame, NULL);
+ }
+
+ free(subprogram_start);
+ if(subprogram_end != NULL){
+ free(subprogram_end);
+ subprogram_end = NULL;
+ }
+
+
+ }else if(strcmp(node_type, "(DW_TAG_variable)") == 0){ /* New variable */
+
+ dw_local_variable_t var = NULL;
+
+ strtok(xbt_dynar_get_as(split, 0, char *), "<");
+ origin = strdup(strtok(NULL, "<"));
+ xbt_str_rtrim(origin, ">:");
+
+ read = getline(&line, &n, fp);
+
+ while(read != -1){
+
+ if(n == 0){
+ read = getline(&line, &n, fp);
+ continue;
+ }
+
+ /* Wipeout the new line character */
+ line[read - 1] = '\0';
+
+ if(strlen(line) == 0){
+ read = getline(&line, &n, fp);
+ continue;
+ }
+
+ xbt_dynar_free(&split);
+ xbt_str_rtrim(line, NULL);
+ xbt_str_strip_spaces(line);
+ split = xbt_str_split(line, " ");
+
+ node_type = xbt_dynar_get_as(split, 1, char *);
+
+ if(strncmp(node_type, "DW_AT_", 6) != 0)
+ break;
+
+ if(strcmp(node_type, "DW_AT_name") == 0){
+
+ new_variable = 1;
+ var = xbt_new0(s_dw_local_variable_t, 1);
+ var->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
+
+ xbt_dict_set(variables_origin, origin, var->name, NULL);
+
+ }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
+
+ new_variable = 0;
+ abstract_origin = xbt_dynar_get_as(split, 2, char *);
+ xbt_str_ltrim(abstract_origin, "<0x");
+ xbt_str_rtrim(abstract_origin, ">");
+
+ variable_name = (char *)xbt_dict_get_or_null(variables_origin, abstract_origin);
+ variable_frame = get_frame_by_offset(*all_variables, strtoul(abstract_origin, NULL, 16));
+ var = xbt_dict_get_or_null(variable_frame->variables, variable_name);
+
+ }else if(strcmp(node_type, "DW_AT_location") == 0){
+
+ if(valid_variable == 1 && var != NULL){
+
+ var->location = xbt_new0(s_dw_location_t, 1);
+
+ location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
+
+ if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
+
+ var->location = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
+
+ }else{
+
+ xbt_str_strip_spaces(line);
+ split2 = xbt_str_split(line, "(");
+ xbt_dynar_remove_at(split2, 0, NULL);
+ loc_expr = xbt_str_join(split2, " ");
+ xbt_str_rtrim(loc_expr, ")");
+ var->location = get_location(NULL, loc_expr);
+ xbt_dynar_free(&split2);
+
+ }
+
+ }
+
+ }else if(strcmp(node_type, "DW_AT_external") == 0){
+
+ valid_variable = 0;
+
+ }
+
+ read = getline(&line, &n, fp);
+
+ }
+
+ if(new_variable == 1 && valid_variable == 1){
+
+ variable_frame = xbt_dict_get_or_null(*all_variables, current_frame);
+ xbt_dict_set(variable_frame->variables, var->name, var, NULL);
+ }
+
+ valid_variable = 1;
+ new_variable = 0;
+
+ }else if(strcmp(node_type, "(DW_TAG_inlined_subroutine)") == 0){
+
+ strtok(xbt_dynar_get_as(split, 0, char *), "<");
+ origin = strdup(strtok(NULL, "<"));
+ xbt_str_rtrim(origin, ">:");
+
+ read = getline(&line, &n, fp);
+
+ while(read != -1){
+
+ /* Wipeout the new line character */
+ line[read - 1] = '\0';
+
+ if(n == 0){
+ read = getline(&line, &n, fp);
+ continue;
+ }
+
+ if(strlen(line) == 0){
+ read = getline(&line, &n, fp);
+ continue;
+ }
+
+ xbt_dynar_free(&split);
+ xbt_str_rtrim(line, NULL);
+ xbt_str_strip_spaces(line);
+ split = xbt_str_split(line, " ");
+
+ if(strncmp(xbt_dynar_get_as(split, 1, char *), "DW_AT_", 6) != 0)
+ break;
+
+ node_type = xbt_dynar_get_as(split, 1, char *);
+
+ if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
+
+ origin = xbt_dynar_get_as(split, 2, char *);
+ xbt_str_ltrim(origin, "<0x");
+ xbt_str_rtrim(origin, ">");
+
+ subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, origin);
+ subroutine_frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
+
+ }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
+
+ subroutine_frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
+
+ }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
+
+ subroutine_frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
+ }
+
+ read = getline(&line, &n, fp);
+
+ }
+
+ }else{
+
+ read = getline(&line, &n, fp);
+
+ }
+
+ }
+
+ xbt_dynar_free(&split);
+ free(line);
+ free(command);
+ pclose(fp);
+
+}
+
+static dw_location_t get_location(xbt_dict_t location_list, char *expr){
+
+ dw_location_t loc = xbt_new0(s_dw_location_t, 1);
+
+ if(location_list != NULL){
+
+ char *key = bprintf("%d", (int)strtoul(expr, NULL, 16));
+ loc->type = e_dw_loclist;
+ loc->location.loclist = (xbt_dynar_t)xbt_dict_get_or_null(location_list, key);
+ if(loc == NULL)
+ XBT_INFO("Key not found in loclist");
+ return loc;
+
+ }else{
+
+ int cursor = 0;
+ char *tok = NULL, *tok2 = NULL;
+
+ xbt_dynar_t tokens1 = xbt_str_split(expr, ";");
+ xbt_dynar_t tokens2;
+
+ loc->type = e_dw_compose;
+ loc->location.compose = xbt_dynar_new(sizeof(dw_location_t), NULL);
+
+ while(cursor < xbt_dynar_length(tokens1)){
+
+ tok = xbt_dynar_get_as(tokens1, cursor, char*);
+ tokens2 = xbt_str_split(tok, " ");
+ tok2 = xbt_dynar_get_as(tokens2, 0, char*);
+
+ if(strncmp(tok2, "DW_OP_reg", 9) == 0){
+ dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
+ new_element->type = e_dw_register;
+ new_element->location.reg = atoi(strtok(tok2, "DW_OP_reg"));
+ xbt_dynar_push(loc->location.compose, &new_element);
+ }else if(strcmp(tok2, "DW_OP_fbreg:") == 0){
+ dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
+ new_element->type = e_dw_fbregister_op;
+ new_element->location.fbreg_op = atoi(xbt_dynar_get_as(tokens2, 1, char*));
+ xbt_dynar_push(loc->location.compose, &new_element);
+ }else if(strncmp(tok2, "DW_OP_breg", 10) == 0){
+ dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
+ new_element->type = e_dw_bregister_op;
+ new_element->location.breg_op.reg = atoi(strtok(tok2, "DW_OP_breg"));
+ new_element->location.breg_op.offset = atoi(xbt_dynar_get_as(tokens2, 1, char*));
+ xbt_dynar_push(loc->location.compose, &new_element);
+ }else if(strncmp(tok2, "DW_OP_lit", 9) == 0){
+ dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
+ new_element->type = e_dw_lit;
+ new_element->location.lit = atoi(strtok(tok2, "DW_OP_lit"));
+ xbt_dynar_push(loc->location.compose, &new_element);
+ }else if(strcmp(tok2, "DW_OP_piece:") == 0){
+ dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
+ new_element->type = e_dw_piece;
+ new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, 1, char*));
+ /*if(strlen(xbt_dynar_get_as(tokens2, 1, char*)) > 1)
+ new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, 1, char*));
+ else
+ new_element->location.piece = xbt_dynar_get_as(tokens2, 1, char*)[0] - '0';*/
+ xbt_dynar_push(loc->location.compose, &new_element);
+ }else if(strcmp(tok2, "DW_OP_plus_uconst:") == 0){
+ dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
+ new_element->type = e_dw_plus_uconst;
+ new_element->location.plus_uconst = atoi(xbt_dynar_get_as(tokens2, 1, char *));
+ xbt_dynar_push(loc->location.compose, &new_element);
+ }else if(strcmp(tok, "DW_OP_abs") == 0 ||
+ strcmp(tok, "DW_OP_and") == 0 ||
+ strcmp(tok, "DW_OP_div") == 0 ||
+ strcmp(tok, "DW_OP_minus") == 0 ||
+ strcmp(tok, "DW_OP_mod") == 0 ||
+ strcmp(tok, "DW_OP_mul") == 0 ||
+ strcmp(tok, "DW_OP_neg") == 0 ||
+ strcmp(tok, "DW_OP_not") == 0 ||
+ strcmp(tok, "DW_OP_or") == 0 ||
+ strcmp(tok, "DW_OP_plus") == 0){
+ dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
+ new_element->type = e_dw_arithmetic;
+ new_element->location.arithmetic = strdup(strtok(tok2, "DW_OP_"));
+ xbt_dynar_push(loc->location.compose, &new_element);
+ }else if(strcmp(tok, "DW_OP_stack_value") == 0){
+ }else if(strcmp(tok2, "DW_OP_deref_size:") == 0){
+ dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
+ new_element->type = e_dw_deref;
+ new_element->location.deref_size = (unsigned int short) atoi(xbt_dynar_get_as(tokens2, 1, char*));
+ /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
+ new_element->location.deref_size = atoi(xbt_dynar_get_as(tokens, cursor, char*));
+ else
+ new_element->location.deref_size = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
+ xbt_dynar_push(loc->location.compose, &new_element);
+ }else if(strcmp(tok, "DW_OP_deref") == 0){
+ dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
+ new_element->type = e_dw_deref;
+ new_element->location.deref_size = sizeof(void *);
+ xbt_dynar_push(loc->location.compose, &new_element);
+ }else if(strcmp(tok2, "DW_OP_constu:") == 0){
+ dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
+ new_element->type = e_dw_uconstant;
+ new_element->location.uconstant.bytes = 1;
+ new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
+ /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
+ new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens, cursor, char*)));
+ else
+ new_element->location.uconstant.value = (unsigned long int)(xbt_dynar_get_as(tokens, cursor, char*)[0] - '0');*/
+ xbt_dynar_push(loc->location.compose, &new_element);
+ }else if(strcmp(tok2, "DW_OP_consts:") == 0){
+ dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
+ new_element->type = e_dw_sconstant;
+ new_element->location.sconstant.bytes = 1;
+ new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
+ xbt_dynar_push(loc->location.compose, &new_element);
+ }else if(strcmp(tok2, "DW_OP_const1u:") == 0 ||
+ strcmp(tok2, "DW_OP_const2u:") == 0 ||
+ strcmp(tok2, "DW_OP_const4u:") == 0 ||
+ strcmp(tok2, "DW_OP_const8u:") == 0){
+ dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
+ new_element->type = e_dw_uconstant;
+ new_element->location.uconstant.bytes = tok2[11] - '0';
+ new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
+ /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
+ new_element->location.constant.value = atoi(xbt_dynar_get_as(tokens, cursor, char*));
+ else
+ new_element->location.constant.value = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
+ xbt_dynar_push(loc->location.compose, &new_element);
+ }else if(strcmp(tok, "DW_OP_const1s") == 0 ||
+ strcmp(tok, "DW_OP_const2s") == 0 ||
+ strcmp(tok, "DW_OP_const4s") == 0 ||
+ strcmp(tok, "DW_OP_const8s") == 0){
+ dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
+ new_element->type = e_dw_sconstant;
+ new_element->location.sconstant.bytes = tok2[11] - '0';
+ new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
+ xbt_dynar_push(loc->location.compose, &new_element);
+ }else{
+ dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
+ new_element->type = e_dw_unsupported;
+ xbt_dynar_push(loc->location.compose, &new_element);
+ }
+
+ cursor++;
+ xbt_dynar_free(&tokens2);
+
+ }
+
+ xbt_dynar_free(&tokens1);
+
+ return loc;
+
+ }
+
+}
+
+
+void print_local_variables(xbt_dict_t list){