-/* Copyright (c) 2008-2012 Da SimGrid Team. All rights reserved. */
+/* Copyright (c) 2008-2013 Da SimGrid Team. All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
#include <sys/wait.h>
#include <sys/time.h>
+#include "simgrid/sg_config.h"
#include "../surf/surf_private.h"
#include "../simix/smx_private.h"
+#include "../xbt/mmalloc/mmprivate.h"
#include "xbt/fifo.h"
#include "mc_private.h"
+#include "xbt/automaton.h"
+#include "xbt/dict.h"
XBT_LOG_NEW_CATEGORY(mc, "All MC categories");
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_global, mc,
"Logging specific to MC (global)");
-/* MC global data structures */
+/* Configuration support */
+e_mc_reduce_t mc_reduce_kind=e_mc_reduce_unset;
+
+int _sg_do_model_check = 0;
+int _sg_mc_checkpoint=0;
+char* _sg_mc_property_file=NULL;
+int _sg_mc_timeout=0;
+int _sg_mc_max_depth=1000;
+int _sg_mc_visited=0;
+char *_sg_mc_dot_output_file = NULL;
+
+int user_max_depth_reached = 0;
+
+extern int _sg_init_status;
+void _mc_cfg_cb_reduce(const char *name, int pos) {
+ if (_sg_init_status && !_sg_do_model_check) {
+ xbt_die("You are specifying a reduction strategy after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
+ }
+ char *val= xbt_cfg_get_string(_sg_cfg_set, name);
+ if (!strcasecmp(val,"none")) {
+ mc_reduce_kind = e_mc_reduce_none;
+ } else if (!strcasecmp(val,"dpor")) {
+ mc_reduce_kind = e_mc_reduce_dpor;
+ } else {
+ xbt_die("configuration option %s can only take 'none' or 'dpor' as a value",name);
+ }
+}
+
+void _mc_cfg_cb_checkpoint(const char *name, int pos) {
+ if (_sg_init_status && !_sg_do_model_check) {
+ xbt_die("You are specifying a checkpointing value after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
+ }
+ _sg_mc_checkpoint = xbt_cfg_get_int(_sg_cfg_set, name);
+}
+void _mc_cfg_cb_property(const char *name, int pos) {
+ if (_sg_init_status && !_sg_do_model_check) {
+ xbt_die("You are specifying a property after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
+ }
+ _sg_mc_property_file= xbt_cfg_get_string(_sg_cfg_set, name);
+}
+
+void _mc_cfg_cb_timeout(const char *name, int pos) {
+ if (_sg_init_status && !_sg_do_model_check) {
+ xbt_die("You are specifying a value to enable/disable timeout for wait requests after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
+ }
+ _sg_mc_timeout= xbt_cfg_get_boolean(_sg_cfg_set, name);
+}
+
+void _mc_cfg_cb_max_depth(const char *name, int pos) {
+ if (_sg_init_status && !_sg_do_model_check) {
+ xbt_die("You are specifying a max depth value after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
+ }
+ _sg_mc_max_depth= xbt_cfg_get_int(_sg_cfg_set, name);
+}
+
+void _mc_cfg_cb_visited(const char *name, int pos) {
+ if (_sg_init_status && !_sg_do_model_check) {
+ xbt_die("You are specifying a number of stored visited states after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
+ }
+ _sg_mc_visited= xbt_cfg_get_int(_sg_cfg_set, name);
+}
+
+void _mc_cfg_cb_dot_output(const char *name, int pos) {
+ if (_sg_init_status && !_sg_do_model_check) {
+ xbt_die("You are specifying a file name for a dot output of graph state after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
+ }
+ _sg_mc_dot_output_file= xbt_cfg_get_string(_sg_cfg_set, name);
+}
+/* MC global data structures */
mc_state_t mc_current_state = NULL;
char mc_replay_mode = FALSE;
double *mc_time = NULL;
-mc_snapshot_t initial_snapshot = NULL;
+__thread mc_comparison_times_t mc_comp_times = NULL;
+__thread double mc_snapshot_comparison_time;
+mc_stats_t mc_stats = NULL;
+
+/* Safety */
+xbt_fifo_t mc_stack_safety = NULL;
+mc_global_t initial_state_safety = NULL;
+
+/* Liveness */
+xbt_fifo_t mc_stack_liveness = NULL;
+mc_global_t initial_state_liveness = NULL;
+int compare;
+
+xbt_automaton_t _mc_property_automaton = NULL;
+
+/* Variables */
+xbt_dict_t mc_local_variables_libsimgrid = NULL;
+xbt_dict_t mc_local_variables_binary = NULL;
+xbt_dynar_t mc_global_variables_libsimgrid = NULL;
+xbt_dynar_t mc_global_variables_binary = NULL;
+xbt_dict_t mc_variables_type_libsimgrid = NULL;
+xbt_dict_t mc_variables_type_binary = NULL;
+
+/* Ignore mechanism */
+xbt_dynar_t mc_stack_comparison_ignore;
+xbt_dynar_t mc_data_bss_comparison_ignore;
+extern xbt_dynar_t mc_heap_comparison_ignore;
+extern xbt_dynar_t stacks_areas;
+
+/* Dot output */
+FILE *dot_output = NULL;
+const char* colors[13];
+
+
+/******************************* DWARF Information *******************************/
+/**********************************************************************************/
+
+/************************** Free functions *************************/
+
+static void dw_location_free(dw_location_t l){
+ if(l){
+ if(l->type == e_dw_loclist)
+ xbt_dynar_free(&(l->location.loclist));
+ else if(l->type == e_dw_compose)
+ xbt_dynar_free(&(l->location.compose));
+ else if(l->type == e_dw_arithmetic)
+ xbt_free(l->location.arithmetic);
+
+ xbt_free(l);
+ }
+}
+
+static void dw_location_entry_free(dw_location_entry_t e){
+ dw_location_free(e->location);
+ xbt_free(e);
+}
+
+static void dw_type_free(dw_type_t t){
+ xbt_free(t->name);
+ xbt_free(t->dw_type_id);
+ xbt_dynar_free(&(t->members));
+ xbt_free(t);
+}
+
+static void dw_type_free_voidp(void *t){
+ dw_type_free((dw_type_t) * (void **) t);
+}
+
+static void dw_variable_free(dw_variable_t v){
+ if(v){
+ xbt_free(v->name);
+ xbt_free(v->type_origin);
+ if(!v->global)
+ dw_location_free(v->address.location);
+ xbt_free(v);
+ }
+}
+
+static void dw_variable_free_voidp(void *t){
+ dw_variable_free((dw_variable_t) * (void **) t);
+}
+
+/*************************************************************************/
+
+static dw_location_t MC_dwarf_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->location.loclist == NULL)
+ XBT_INFO("Key not found in loclist");
+ xbt_free(key);
+ 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, xbt_dynar_length(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, xbt_dynar_length(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, xbt_dynar_length(tokens2) - 1, char*));
+ 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, xbt_dynar_length(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, xbt_dynar_length(tokens2) - 1, char*));
+ 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, xbt_dynar_length(tokens2) - 1, char*)));
+ 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, xbt_dynar_length(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, xbt_dynar_length(tokens2) - 1, char*)));
+ 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, xbt_dynar_length(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;
+
+ }
+
+}
+
+static xbt_dict_t MC_dwarf_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 = xbt_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 = MC_dwarf_get_location(NULL, loc_expr);
+
+ xbt_dynar_push(loclist, &new_entry);
+
+ xbt_dynar_free(&split);
+ free(loc_expr);
+
+ read = xbt_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_free(key);
+
+ xbt_dynar_free(&split);
+
+ }
+
+ xbt_free(line);
+ xbt_free(command);
+ pclose(fp);
+
+ return location_list;
+}
+
+static dw_frame_t MC_dwarf_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){
+ xbt_dict_cursor_free(&cursor);
+ return res;
+ }
+ }
+
+ xbt_dict_cursor_free(&cursor);
+ return NULL;
+
+}
+
+static dw_variable_t MC_dwarf_get_variable_by_name(dw_frame_t frame, char *var){
+
+ unsigned int cursor = 0;
+ dw_variable_t current_var;
+
+ xbt_dynar_foreach(frame->variables, cursor, current_var){
+ if(strcmp(var, current_var->name) == 0)
+ return current_var;
+ }
+
+ return NULL;
+}
+
+static int MC_dwarf_get_variable_index(xbt_dynar_t variables, char* var, void *address){
+
+ if(xbt_dynar_is_empty(variables))
+ return 0;
+
+ unsigned int cursor = 0;
+ int start = 0;
+ int end = xbt_dynar_length(variables) - 1;
+ dw_variable_t var_test = NULL;
+
+ while(start <= end){
+ cursor = (start + end) / 2;
+ var_test = (dw_variable_t)xbt_dynar_get_as(variables, cursor, dw_variable_t);
+ if(strcmp(var_test->name, var) < 0){
+ start = cursor + 1;
+ }else if(strcmp(var_test->name, var) > 0){
+ end = cursor - 1;
+ }else{
+ if(address){ /* global variable */
+ if(var_test->address.address == address)
+ return -1;
+ if(var_test->address.address > address)
+ end = cursor - 1;
+ else
+ start = cursor + 1;
+ }else{ /* local variable */
+ return -1;
+ }
+ }
+ }
+
+ if(strcmp(var_test->name, var) == 0){
+ if(address && var_test->address.address < address)
+ return cursor+1;
+ else
+ return cursor;
+ }else if(strcmp(var_test->name, var) < 0)
+ return cursor+1;
+ else
+ return cursor;
+
+}
+
+
+static void MC_dwarf_get_variables(const char *elf_file, xbt_dict_t location_list, xbt_dict_t *local_variables, xbt_dynar_t *global_variables, xbt_dict_t *types){
+
+ 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,
+ *subprogram_name = NULL, *subprogram_start = NULL, *subprogram_end = NULL,
+ *node_type = NULL, *location_type = NULL, *variable_name = NULL,
+ *loc_expr = NULL, *name = NULL, *end =NULL, *type_origin = NULL, *global_address = NULL,
+ *parent_value = NULL;
+
+ ssize_t read =0;
+ size_t n = 0;
+ int global_variable = 0, parent = 0, new_frame = 0, new_variable = 1, size = 0,
+ is_pointer = 0, struct_decl = 0, member_end = 0,
+ enumeration_size = 0, subrange = 0, union_decl = 0, offset = 0, index = 0;
+
+ xbt_dynar_t split = NULL, split2 = NULL;
+
+ xbt_dict_t variables_origin = xbt_dict_new_homogeneous(xbt_free);
+ xbt_dict_t subprograms_origin = xbt_dict_new_homogeneous(xbt_free);
+
+ dw_frame_t variable_frame, subroutine_frame = NULL;
+
+ e_dw_type_type type_type = -1;
+
+ read = xbt_getline(&line, &n, fp);
+
+ while (read != -1) {
+
+ /* Wipeout the new line character */
+ line[read - 1] = '\0';
+
+ if(n == 0 || strlen(line) == 0){
+ read = xbt_getline(&line, &n, fp);
+ continue;
+ }
+
+ xbt_str_ltrim(line, NULL);
+ xbt_str_strip_spaces(line);
+
+ if(line[0] != '<'){
+ read = xbt_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 = xbt_strdup(strtok(NULL, "<"));
+ xbt_str_rtrim(subprogram_start, ">:");
+
+ read = xbt_getline(&line, &n, fp);
+
+ while(read != -1){
+
+ /* Wipeout the new line character */
+ line[read - 1] = '\0';
+
+ if(n == 0 || strlen(line) == 0){
+ read = xbt_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 = xbt_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 = xbt_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(*local_variables, subprogram_name);
+ xbt_free(abstract_origin);
+
+ }else if(strcmp(node_type, "DW_AT_name") == 0){
+
+ new_frame = 1;
+ xbt_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_dynar_new(sizeof(dw_variable_t), dw_variable_free_voidp);
+ frame->frame_base = xbt_new0(s_dw_location_t, 1);
+ current_frame = strdup(frame->name);
+
+ xbt_dict_set(subprograms_origin, subprogram_start, xbt_strdup(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 = MC_dwarf_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 = MC_dwarf_get_location(NULL, loc_expr);
+ xbt_dynar_free(&split2);
+ xbt_free(loc_expr);
+
+ }
+
+ }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){
+
+ xbt_free(frame->name);
+ xbt_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, xbt_strdup(frame->name), NULL);
+
+ }
+
+ read = xbt_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(*local_variables, frame->name, frame, NULL);
+ }
+
+ xbt_free(subprogram_start);
+ xbt_free(subprogram_end);
+ subprogram_end = NULL;
+
+
+ }else if(strcmp(node_type, "(DW_TAG_variable)") == 0){ /* New variable */
+
+ dw_variable_t var = NULL;
+
+ parent_value = strdup(xbt_dynar_get_as(split, 0, char *));
+ parent_value = strtok(parent_value,"<");
+ xbt_str_rtrim(parent_value, ">");
+ parent = atoi(parent_value);
+ xbt_free(parent_value);
+
+ if(parent == 1)
+ global_variable = 1;
+
+ strtok(xbt_dynar_get_as(split, 0, char *), "<");
+ origin = xbt_strdup(strtok(NULL, "<"));
+ xbt_str_rtrim(origin, ">:");
+
+ read = xbt_getline(&line, &n, fp);
+
+ while(read != -1){
+
+ /* Wipeout the new line character */
+ line[read - 1] = '\0';
+
+ if(n == 0 || strlen(line) == 0){
+ read = xbt_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){
+
+ var = xbt_new0(s_dw_variable_t, 1);
+ var->name = xbt_strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
+ xbt_dict_set(variables_origin, origin, xbt_strdup(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 = MC_dwarf_get_frame_by_offset(*local_variables, strtoul(abstract_origin, NULL, 16));
+ var = MC_dwarf_get_variable_by_name(variable_frame, variable_name);
+
+ }else if(strcmp(node_type, "DW_AT_location") == 0){
+
+ if(var != NULL){
+
+ if(!global_variable){
+
+ 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->address.location = MC_dwarf_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, ")");
+ if(strncmp("DW_OP_addr", loc_expr, 10) == 0){
+ global_variable = 1;
+ xbt_dynar_free(&split2);
+ split2 = xbt_str_split(loc_expr, " ");
+ if(strcmp(elf_file, xbt_binary_name) != 0)
+ var->address.address = (char *)start_text_libsimgrid + (long)((void *)strtoul(xbt_dynar_get_as(split2, xbt_dynar_length(split2) - 1, char*), NULL, 16));
+ else
+ var->address.address = (void *)strtoul(xbt_dynar_get_as(split2, xbt_dynar_length(split2) - 1, char*), NULL, 16);
+ }else{
+ var->address.location = MC_dwarf_get_location(NULL, loc_expr);
+ }
+ xbt_dynar_free(&split2);
+ xbt_free(loc_expr);
+ }
+ }else{
+ global_address = xbt_strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
+ xbt_str_rtrim(global_address, ")");
+ if(strcmp(elf_file, xbt_binary_name) != 0)
+ var->address.address = (char *)start_text_libsimgrid + (long)((void *)strtoul(global_address, NULL, 16));
+ else
+ var->address.address = (void *)strtoul(global_address, NULL, 16);
+ xbt_free(global_address);
+ global_address = NULL;
+ }
+
+ }
+
+ }else if(strcmp(node_type, "DW_AT_type") == 0){
+
+ type_origin = xbt_strdup(xbt_dynar_get_as(split, 3, char *));
+ xbt_str_ltrim(type_origin, "<0x");
+ xbt_str_rtrim(type_origin, ">");
+
+ }else if(strcmp(node_type, "DW_AT_declaration") == 0){
+
+ new_variable = 0;
+ if(new_variable){
+ dw_variable_free(var);
+ var = NULL;
+ }
+
+ }else if(strcmp(node_type, "DW_AT_artificial") == 0){
+
+ new_variable = 0;
+ if(new_variable){
+ dw_variable_free(var);
+ var = NULL;
+ }
+
+ }
+
+ read = xbt_getline(&line, &n, fp);
+
+ }
+
+ if(new_variable == 1){
+
+ if(!global_variable){
+ variable_frame = xbt_dict_get_or_null(*local_variables, current_frame);
+ var->type_origin = strdup(type_origin);
+ var->global = 0;
+ index = MC_dwarf_get_variable_index(variable_frame->variables, var->name, NULL);
+ if(index != -1)
+ xbt_dynar_insert_at(variable_frame->variables, index, &var);
+ }else{
+ var->type_origin = strdup(type_origin);
+ var->global = 1;
+ index = MC_dwarf_get_variable_index(*global_variables, var->name, var->address.address);
+ if(index != -1)
+ xbt_dynar_insert_at(*global_variables, index, &var);
+ }
+
+ xbt_free(type_origin);
+ type_origin = NULL;
+ }
+
+ global_variable = 0;
+ new_variable = 1;
+
+ }else if(strcmp(node_type, "(DW_TAG_inlined_subroutine)") == 0){
+
+ read = xbt_getline(&line, &n, fp);
+
+ while(read != -1){
+
+ /* Wipeout the new line character */
+ line[read - 1] = '\0';
+
+ if(n == 0 || strlen(line) == 0){
+ read = xbt_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(*local_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 = xbt_getline(&line, &n, fp);
+
+ }
+
+ }else if(strcmp(node_type, "(DW_TAG_base_type)") == 0
+ || strcmp(node_type, "(DW_TAG_enumeration_type)") == 0
+ || strcmp(node_type, "(DW_TAG_enumerator)") == 0
+ || strcmp(node_type, "(DW_TAG_typedef)") == 0
+ || strcmp(node_type, "(DW_TAG_const_type)") == 0
+ || strcmp(node_type, "(DW_TAG_subroutine_type)") == 0
+ || strcmp(node_type, "(DW_TAG_volatile_type)") == 0
+ || (is_pointer = !strcmp(node_type, "(DW_TAG_pointer_type)"))){
+
+ if(strcmp(node_type, "(DW_TAG_base_type)") == 0)
+ type_type = e_dw_base_type;
+ else if(strcmp(node_type, "(DW_TAG_enumeration_type)") == 0)
+ type_type = e_dw_enumeration_type;
+ else if(strcmp(node_type, "(DW_TAG_enumerator)") == 0)
+ type_type = e_dw_enumerator;
+ else if(strcmp(node_type, "(DW_TAG_typedef)") == 0)
+ type_type = e_dw_typedef;
+ else if(strcmp(node_type, "(DW_TAG_const_type)") == 0)
+ type_type = e_dw_const_type;
+ else if(strcmp(node_type, "(DW_TAG_pointer_type)") == 0)
+ type_type = e_dw_pointer_type;
+ else if(strcmp(node_type, "(DW_TAG_subroutine_type)") == 0)
+ type_type = e_dw_subroutine_type;
+ else if(strcmp(node_type, "(DW_TAG_volatile_type)") == 0)
+ type_type = e_dw_volatile_type;
+
+ strtok(xbt_dynar_get_as(split, 0, char *), "<");
+ origin = strdup(strtok(NULL, "<"));
+ xbt_str_rtrim(origin, ">:");
+
+ read = xbt_getline(&line, &n, fp);
+
+ while(read != -1){
+
+ /* Wipeout the new line character */
+ line[read - 1] = '\0';
+
+ if(n == 0 || strlen(line) == 0){
+ read = xbt_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_byte_size") == 0){
+ size = strtol(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char*), NULL, 10);
+ if(type_type == e_dw_enumeration_type)
+ enumeration_size = size;
+ }else if(strcmp(node_type, "DW_AT_name") == 0){
+ end = xbt_str_join(split, " ");
+ xbt_dynar_free(&split);
+ split = xbt_str_split(end, "):");
+ xbt_str_ltrim(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char*), NULL);
+ name = xbt_strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char*));
+ }else if(strcmp(node_type, "DW_AT_type") == 0){
+ type_origin = xbt_strdup(xbt_dynar_get_as(split, 3, char *));
+ xbt_str_ltrim(type_origin, "<0x");
+ xbt_str_rtrim(type_origin, ">");
+ }
+
+ read = xbt_getline(&line, &n, fp);
+ }
+
+ dw_type_t type = xbt_new0(s_dw_type_t, 1);
+ type->type = type_type;
+ if(name)
+ type->name = xbt_strdup(name);
+ else
+ type->name = xbt_strdup("undefined");
+ type->is_pointer_type = is_pointer;
+ type->id = (void *)strtoul(origin, NULL, 16);
+ if(type_origin)
+ type->dw_type_id = xbt_strdup(type_origin);
+ if(type_type == e_dw_enumerator)
+ type->size = enumeration_size;
+ else
+ type->size = size;
+ type->members = NULL;
+
+ xbt_dict_set(*types, origin, type, NULL);
+
+ xbt_free(name);
+ name = NULL;
+ xbt_free(type_origin);
+ type_origin = NULL;
+ xbt_free(end);
+ end = NULL;
+
+ is_pointer = 0;
+ size = 0;
+ xbt_free(origin);
+
+ }else if(strcmp(node_type, "(DW_TAG_structure_type)") == 0 || strcmp(node_type, "(DW_TAG_union_type)") == 0){
+
+ if(strcmp(node_type, "(DW_TAG_structure_type)") == 0)
+ struct_decl = 1;
+ else
+ union_decl = 1;
+
+ strtok(xbt_dynar_get_as(split, 0, char *), "<");
+ origin = strdup(strtok(NULL, "<"));
+ xbt_str_rtrim(origin, ">:");
+
+ read = xbt_getline(&line, &n, fp);
+
+ dw_type_t type = NULL;
+
+ while(read != -1){
+
+ while(read != -1){
+
+ /* Wipeout the new line character */
+ line[read - 1] = '\0';
+
+ if(n == 0 || strlen(line) == 0){
+ read = xbt_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){
+ member_end = 1;
+ break;
+ }
+
+ if(strcmp(node_type, "DW_AT_byte_size") == 0){
+ size = strtol(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char*), NULL, 10);
+ }else if(strcmp(node_type, "DW_AT_name") == 0){
+ xbt_free(end);
+ end = xbt_str_join(split, " ");
+ xbt_dynar_free(&split);
+ split = xbt_str_split(end, "):");
+ xbt_str_ltrim(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char*), NULL);
+ name = xbt_strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char*));
+ }else if(strcmp(node_type, "DW_AT_type") == 0){
+ type_origin = xbt_strdup(xbt_dynar_get_as(split, 3, char *));
+ xbt_str_ltrim(type_origin, "<0x");
+ xbt_str_rtrim(type_origin, ">");
+ }else if(strcmp(node_type, "DW_AT_data_member_location:") == 0){
+ xbt_free(end);
+ end = xbt_str_join(split, " ");
+ xbt_dynar_free(&split);
+ split = xbt_str_split(end, "DW_OP_plus_uconst:");
+ xbt_str_ltrim(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *), NULL);
+ xbt_str_rtrim(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *), ")");
+ offset = strtol(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char*), NULL, 10);
+ }
+
+ read = xbt_getline(&line, &n, fp);
+
+ }
+
+ if(member_end && type){
+ member_end = 0;
+
+ dw_type_t member_type = xbt_new0(s_dw_type_t, 1);
+ member_type->name = xbt_strdup(name);
+ member_type->size = size;
+ member_type->is_pointer_type = is_pointer;
+ member_type->id = (void *)strtoul(origin, NULL, 16);
+ member_type->offset = offset;
+ if(type_origin)
+ member_type->dw_type_id = xbt_strdup(type_origin);
+
+ xbt_dynar_push(type->members, &member_type);
+
+ xbt_free(name);
+ name = NULL;
+ xbt_free(end);
+ end = NULL;
+ xbt_free(type_origin);
+ type_origin = NULL;
+ size = 0;
+ offset = 0;
+
+ xbt_free(origin);
+ origin = NULL;
+ strtok(xbt_dynar_get_as(split, 0, char *), "<");
+ origin = strdup(strtok(NULL, "<"));
+ xbt_str_rtrim(origin, ">:");
+
+ }
+
+ if(struct_decl || union_decl){
+ type = xbt_new0(s_dw_type_t, 1);
+ if(struct_decl)
+ type->type = e_dw_structure_type;
+ else
+ type->type = e_dw_union_type;
+ type->name = xbt_strdup(name);
+ type->size = size;
+ type->is_pointer_type = is_pointer;
+ type->id = (void *)strtoul(origin, NULL, 16);
+ if(type_origin)
+ type->dw_type_id = xbt_strdup(type_origin);
+ type->members = xbt_dynar_new(sizeof(dw_type_t), dw_type_free_voidp);
+
+ xbt_dict_set(*types, origin, type, NULL);
+
+ xbt_free(name);
+ name = NULL;
+ xbt_free(end);
+ end = NULL;
+ xbt_free(type_origin);
+ type_origin = NULL;
+ size = 0;
+ struct_decl = 0;
+ union_decl = 0;
+
+ }
+
+ if(strcmp(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *), "(DW_TAG_member)") != 0)
+ break;
+
+ read = xbt_getline(&line, &n, fp);
+
+ }
+
+ xbt_free(origin);
+ origin = NULL;
+
+ }else if(strcmp(node_type, "(DW_TAG_array_type)") == 0){
+
+ strtok(xbt_dynar_get_as(split, 0, char *), "<");
+ origin = strdup(strtok(NULL, "<"));
+ xbt_str_rtrim(origin, ">:");
+
+ read = xbt_getline(&line, &n, fp);
+
+ dw_type_t type = NULL;
+
+ while(read != -1){
+
+ while(read != -1){
+
+ /* Wipeout the new line character */
+ line[read - 1] = '\0';
+
+ if(n == 0 || strlen(line) == 0){
+ read = xbt_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_upper_bound") == 0){
+ size = strtol(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char*), NULL, 10);
+ }else if(strcmp(node_type, "DW_AT_name") == 0){
+ end = xbt_str_join(split, " ");
+ xbt_dynar_free(&split);
+ split = xbt_str_split(end, "):");
+ xbt_str_ltrim(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char*), NULL);
+ name = xbt_strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char*));
+ }else if(strcmp(node_type, "DW_AT_type") == 0){
+ type_origin = xbt_strdup(xbt_dynar_get_as(split, 3, char *));
+ xbt_str_ltrim(type_origin, "<0x");
+ xbt_str_rtrim(type_origin, ">");
+ }
+
+ read = xbt_getline(&line, &n, fp);
+
+ }
+
+ if(strcmp(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *), "(DW_TAG_subrange_type)") == 0){
+ subrange = 1;
+ }
+
+ if(subrange && type){
+ type->size = size;
+
+ xbt_free(name);
+ name = NULL;
+ xbt_free(end);
+ end = NULL;
+ xbt_free(type_origin);
+ type_origin = NULL;
+ size = 0;
+
+ xbt_free(origin);
+ origin = NULL;
+ strtok(xbt_dynar_get_as(split, 0, char *), "<");
+ origin = strdup(strtok(NULL, "<"));
+ xbt_str_rtrim(origin, ">:");
+
+ }else {
+
+ type = xbt_new0(s_dw_type_t, 1);
+ type->type = e_dw_array_type;
+ type->name = xbt_strdup(name);
+ type->is_pointer_type = is_pointer;
+ type->id = (void *)strtoul(origin, NULL, 16);
+ if(type_origin)
+ type->dw_type_id = xbt_strdup(type_origin);
+ type->members = NULL;
+
+ xbt_dict_set(*types, origin, type, NULL);
+
+ xbt_free(name);
+ name = NULL;
+ xbt_free(end);
+ end = NULL;
+ xbt_free(type_origin);
+ type_origin = NULL;
+ size = 0;
+ }
+
+ if(strcmp(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *), "(DW_TAG_subrange_type)") != 0)
+ break;
+
+ read = xbt_getline(&line, &n, fp);
+
+ }
+
+ xbt_free(origin);
+ origin = NULL;
+
+ }else{
+
+ read = xbt_getline(&line, &n, fp);
+
+ }
+
+ }
+
+ xbt_dynar_free(&split);
+ xbt_dict_free(&variables_origin);
+ xbt_dict_free(&subprograms_origin);
+ xbt_free(line);
+ xbt_free(command);
+ pclose(fp);
+
+}
+
+
+/******************************* Ignore mechanism *******************************/
+/*********************************************************************************/
+
+xbt_dynar_t mc_checkpoint_ignore;
+
+typedef struct s_mc_stack_ignore_variable{
+ char *var_name;
+ char *frame;
+}s_mc_stack_ignore_variable_t, *mc_stack_ignore_variable_t;
+
+typedef struct s_mc_data_bss_ignore_variable{
+ char *name;
+}s_mc_data_bss_ignore_variable_t, *mc_data_bss_ignore_variable_t;
+
+/**************************** Free functions ******************************/
+
+static void stack_ignore_variable_free(mc_stack_ignore_variable_t v){
+ xbt_free(v->var_name);
+ xbt_free(v->frame);
+ xbt_free(v);
+}
+
+static void stack_ignore_variable_free_voidp(void *v){
+ stack_ignore_variable_free((mc_stack_ignore_variable_t) * (void **) v);
+}
+
+void heap_ignore_region_free(mc_heap_ignore_region_t r){
+ xbt_free(r);
+}
+
+void heap_ignore_region_free_voidp(void *r){
+ heap_ignore_region_free((mc_heap_ignore_region_t) * (void **) r);
+}
+
+static void data_bss_ignore_variable_free(mc_data_bss_ignore_variable_t v){
+ xbt_free(v->name);
+ xbt_free(v);
+}
+
+static void data_bss_ignore_variable_free_voidp(void *v){
+ data_bss_ignore_variable_free((mc_data_bss_ignore_variable_t) * (void **) v);
+}
+
+static void checkpoint_ignore_region_free(mc_checkpoint_ignore_region_t r){
+ xbt_free(r);
+}
+
+static void checkpoint_ignore_region_free_voidp(void *r){
+ checkpoint_ignore_region_free((mc_checkpoint_ignore_region_t) * (void **) r);
+}
+
+/***********************************************************************/
+
+void MC_ignore_heap(void *address, size_t size){
+
+ int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
+
+ MC_SET_RAW_MEM;
+
+ mc_heap_ignore_region_t region = NULL;
+ region = xbt_new0(s_mc_heap_ignore_region_t, 1);
+ region->address = address;
+ region->size = size;
+
+ region->block = ((char*)address - (char*)((xbt_mheap_t)std_heap)->heapbase) / BLOCKSIZE + 1;
+
+ if(((xbt_mheap_t)std_heap)->heapinfo[region->block].type == 0){
+ region->fragment = -1;
+ ((xbt_mheap_t)std_heap)->heapinfo[region->block].busy_block.ignore++;
+ }else{
+ region->fragment = ((uintptr_t) (ADDR2UINT (address) % (BLOCKSIZE))) >> ((xbt_mheap_t)std_heap)->heapinfo[region->block].type;
+ ((xbt_mheap_t)std_heap)->heapinfo[region->block].busy_frag.ignore[region->fragment]++;
+ }
+
+ if(mc_heap_comparison_ignore == NULL){
+ mc_heap_comparison_ignore = xbt_dynar_new(sizeof(mc_heap_ignore_region_t), heap_ignore_region_free_voidp);
+ xbt_dynar_push(mc_heap_comparison_ignore, ®ion);
+ if(!raw_mem_set)
+ MC_UNSET_RAW_MEM;
+ return;
+ }
+
+ unsigned int cursor = 0;
+ mc_heap_ignore_region_t current_region = NULL;
+ int start = 0;
+ int end = xbt_dynar_length(mc_heap_comparison_ignore) - 1;
+
+ while(start <= end){
+ cursor = (start + end) / 2;
+ current_region = (mc_heap_ignore_region_t)xbt_dynar_get_as(mc_heap_comparison_ignore, cursor, mc_heap_ignore_region_t);
+ if(current_region->address == address){
+ heap_ignore_region_free(region);
+ if(!raw_mem_set)
+ MC_UNSET_RAW_MEM;
+ return;
+ }else if(current_region->address < address){
+ start = cursor + 1;
+ }else{
+ end = cursor - 1;
+ }
+ }
+
+ if(current_region->address < address)
+ xbt_dynar_insert_at(mc_heap_comparison_ignore, cursor + 1, ®ion);
+ else
+ xbt_dynar_insert_at(mc_heap_comparison_ignore, cursor, ®ion);
+
+ if(!raw_mem_set)
+ MC_UNSET_RAW_MEM;
+}
+
+void MC_remove_ignore_heap(void *address, size_t size){
+
+ int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
+
+ MC_SET_RAW_MEM;
+
+ unsigned int cursor = 0;
+ int start = 0;
+ int end = xbt_dynar_length(mc_heap_comparison_ignore) - 1;
+ mc_heap_ignore_region_t region;
+ int ignore_found = 0;
+
+ while(start <= end){
+ cursor = (start + end) / 2;
+ region = (mc_heap_ignore_region_t)xbt_dynar_get_as(mc_heap_comparison_ignore, cursor, mc_heap_ignore_region_t);
+ if(region->address == address){
+ ignore_found = 1;
+ break;
+ }else if(region->address < address){
+ start = cursor + 1;
+ }else{
+ if((char * )region->address <= ((char *)address + size)){
+ ignore_found = 1;
+ break;
+ }else{
+ end = cursor - 1;
+ }
+ }
+ }
+
+ if(ignore_found == 1){
+ xbt_dynar_remove_at(mc_heap_comparison_ignore, cursor, NULL);
+ MC_remove_ignore_heap(address, size);
+ }
+
+ if(!raw_mem_set)
+ MC_UNSET_RAW_MEM;
+
+}
+
+void MC_ignore_global_variable(const char *name){
+
+ int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
+
+ MC_SET_RAW_MEM;
+
+ if(mc_global_variables_libsimgrid){
+
+ unsigned int cursor = 0;
+ dw_variable_t current_var;
+ int start = 0;
+ int end = xbt_dynar_length(mc_global_variables_libsimgrid) - 1;
+
+ while(start <= end){
+ cursor = (start + end) /2;
+ current_var = (dw_variable_t)xbt_dynar_get_as(mc_global_variables_libsimgrid, cursor, dw_variable_t);
+ if(strcmp(current_var->name, name) == 0){
+ xbt_dynar_remove_at(mc_global_variables_libsimgrid, cursor, NULL);
+ start = 0;
+ end = xbt_dynar_length(mc_global_variables_libsimgrid) - 1;
+ }else if(strcmp(current_var->name, name) < 0){
+ start = cursor + 1;
+ }else{
+ end = cursor - 1;
+ }
+ }
+
+ }else{
+
+ if(mc_data_bss_comparison_ignore == NULL)
+ mc_data_bss_comparison_ignore = xbt_dynar_new(sizeof(mc_data_bss_ignore_variable_t), data_bss_ignore_variable_free_voidp);
+
+ mc_data_bss_ignore_variable_t var = NULL;
+ var = xbt_new0(s_mc_data_bss_ignore_variable_t, 1);
+ var->name = strdup(name);
+
+ if(xbt_dynar_is_empty(mc_data_bss_comparison_ignore)){
+
+ xbt_dynar_insert_at(mc_data_bss_comparison_ignore, 0, &var);
+
+ }else{
+
+ unsigned int cursor = 0;
+ int start = 0;
+ int end = xbt_dynar_length(mc_data_bss_comparison_ignore) - 1;
+ mc_data_bss_ignore_variable_t current_var = NULL;
+
+ while(start <= end){
+ cursor = (start + end) / 2;
+ current_var = (mc_data_bss_ignore_variable_t)xbt_dynar_get_as(mc_data_bss_comparison_ignore, cursor, mc_data_bss_ignore_variable_t);
+ if(strcmp(current_var->name, name) == 0){
+ data_bss_ignore_variable_free(var);
+ if(!raw_mem_set)
+ MC_UNSET_RAW_MEM;
+ return;
+ }else if(strcmp(current_var->name, name) < 0){
+ start = cursor + 1;
+ }else{
+ end = cursor - 1;
+ }
+ }
+
+ if(strcmp(current_var->name, name) < 0)
+ xbt_dynar_insert_at(mc_data_bss_comparison_ignore, cursor + 1, &var);
+ else
+ xbt_dynar_insert_at(mc_data_bss_comparison_ignore, cursor, &var);
+
+ }
+ }
+
+ if(!raw_mem_set)
+ MC_UNSET_RAW_MEM;
+}
+
+void MC_ignore_local_variable(const char *var_name, const char *frame_name){
+
+ int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
+
+ MC_SET_RAW_MEM;
+
+ if(mc_local_variables_libsimgrid){
+ unsigned int cursor = 0;
+ dw_variable_t current_var;
+ int start, end;
+ if(strcmp(frame_name, "*") == 0){ /* Remove variable in all frames */
+ xbt_dict_cursor_t dict_cursor;
+ char *current_frame_name;
+ dw_frame_t frame;
+ xbt_dict_foreach(mc_local_variables_libsimgrid, dict_cursor, current_frame_name, frame){
+ start = 0;
+ end = xbt_dynar_length(frame->variables) - 1;
+ while(start <= end){
+ cursor = (start + end) / 2;
+ current_var = (dw_variable_t)xbt_dynar_get_as(frame->variables, cursor, dw_variable_t);
+ if(strcmp(current_var->name, var_name) == 0){
+ xbt_dynar_remove_at(frame->variables, cursor, NULL);
+ start = 0;
+ end = xbt_dynar_length(frame->variables) - 1;
+ }else if(strcmp(current_var->name, var_name) < 0){
+ start = cursor + 1;
+ }else{
+ end = cursor - 1;
+ }
+ }
+ }
+ }else{
+ xbt_dynar_t variables_list = ((dw_frame_t)xbt_dict_get_or_null(mc_local_variables_libsimgrid, frame_name))->variables;
+ start = 0;
+ end = xbt_dynar_length(variables_list) - 1;
+ while(start <= end){
+ cursor = (start + end) / 2;
+ current_var = (dw_variable_t)xbt_dynar_get_as(variables_list, cursor, dw_variable_t);
+ if(strcmp(current_var->name, var_name) == 0){
+ xbt_dynar_remove_at(variables_list, cursor, NULL);
+ start = 0;
+ end = xbt_dynar_length(variables_list) - 1;
+ }else if(strcmp(current_var->name, var_name) < 0){
+ start = cursor + 1;
+ }else{
+ end = cursor - 1;
+ }
+ }
+ }
+ }else{
+
+ if(mc_stack_comparison_ignore == NULL)
+ mc_stack_comparison_ignore = xbt_dynar_new(sizeof(mc_stack_ignore_variable_t), stack_ignore_variable_free_voidp);
+
+ mc_stack_ignore_variable_t var = NULL;
+ var = xbt_new0(s_mc_stack_ignore_variable_t, 1);
+ var->var_name = strdup(var_name);
+ var->frame = strdup(frame_name);
+
+ if(xbt_dynar_is_empty(mc_stack_comparison_ignore)){
+
+ xbt_dynar_insert_at(mc_stack_comparison_ignore, 0, &var);
+
+ }else{
+
+ unsigned int cursor = 0;
+ int start = 0;
+ int end = xbt_dynar_length(mc_stack_comparison_ignore) - 1;
+ mc_stack_ignore_variable_t current_var = NULL;
+
+ 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_name) == 0){
+ if(strcmp(current_var->var_name, var_name) == 0){
+ stack_ignore_variable_free(var);
+ if(!raw_mem_set)
+ MC_UNSET_RAW_MEM;
+ return;
+ }else if(strcmp(current_var->var_name, var_name) < 0){
+ start = cursor + 1;
+ }else{
+ end = cursor - 1;
+ }
+ }else if(strcmp(current_var->frame, frame_name) < 0){
+ start = cursor + 1;
+ }else{
+ end = cursor - 1;
+ }
+ }
+
+ if(strcmp(current_var->frame, frame_name) == 0){
+ if(strcmp(current_var->var_name, var_name) < 0){
+ xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor + 1, &var);
+ }else{
+ xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor, &var);
+ }
+ }else if(strcmp(current_var->frame, frame_name) < 0){
+ xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor + 1, &var);
+ }else{
+ xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor, &var);
+ }
+ }
+ }
+
+ if(!raw_mem_set)
+ MC_UNSET_RAW_MEM;
+
+}
+
+void MC_new_stack_area(void *stack, char *name, void* context, size_t size){
+
+ int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
+
+ MC_SET_RAW_MEM;
+
+ if(stacks_areas == NULL)
+ stacks_areas = xbt_dynar_new(sizeof(stack_region_t), NULL);
+
+ stack_region_t region = NULL;
+ region = xbt_new0(s_stack_region_t, 1);
+ region->address = stack;
+ region->process_name = strdup(name);
+ region->context = context;
+ region->size = size;
+ region->block = ((char*)stack - (char*)((xbt_mheap_t)std_heap)->heapbase) / BLOCKSIZE + 1;
+ xbt_dynar_push(stacks_areas, ®ion);
+
+ if(!raw_mem_set)
+ MC_UNSET_RAW_MEM;
+}
+
+void MC_ignore(void *addr, size_t size){
+
+ int raw_mem_set= (mmalloc_get_current_heap() == raw_heap);
+
+ MC_SET_RAW_MEM;
+
+ if(mc_checkpoint_ignore == NULL)
+ mc_checkpoint_ignore = xbt_dynar_new(sizeof(mc_checkpoint_ignore_region_t), checkpoint_ignore_region_free_voidp);
+
+ mc_checkpoint_ignore_region_t region = xbt_new0(s_mc_checkpoint_ignore_region_t, 1);
+ region->addr = addr;
+ region->size = size;
+
+ if(xbt_dynar_is_empty(mc_checkpoint_ignore)){
+ xbt_dynar_push(mc_checkpoint_ignore, ®ion);
+ }else{
+
+ unsigned int cursor = 0;
+ int start = 0;
+ int end = xbt_dynar_length(mc_checkpoint_ignore) -1;
+ mc_checkpoint_ignore_region_t current_region;
+
+ while(start <= end){
+ cursor = (start + end) / 2;
+ current_region = (mc_checkpoint_ignore_region_t)xbt_dynar_get_as(mc_checkpoint_ignore, cursor, mc_checkpoint_ignore_region_t);
+ if(current_region->addr == addr){
+ if(current_region->size == size){
+ checkpoint_ignore_region_free(region);
+ if(!raw_mem_set)
+ MC_UNSET_RAW_MEM;
+ return;
+ }else if(current_region->size < size){
+ start = cursor + 1;
+ }else{
+ end = cursor - 1;
+ }
+ }else if(current_region->addr < addr){
+ start = cursor + 1;
+ }else{
+ end = cursor - 1;
+ }
+ }
+
+ if(current_region->addr == addr){
+ if(current_region->size < size){
+ xbt_dynar_insert_at(mc_checkpoint_ignore, cursor + 1, ®ion);
+ }else{
+ xbt_dynar_insert_at(mc_checkpoint_ignore, cursor, ®ion);
+ }
+ }else if(current_region->addr < addr){
+ xbt_dynar_insert_at(mc_checkpoint_ignore, cursor + 1, ®ion);
+ }else{
+ xbt_dynar_insert_at(mc_checkpoint_ignore, cursor, ®ion);
+ }
+ }
-/* Safety */
+ if(!raw_mem_set)
+ MC_UNSET_RAW_MEM;
+}
-xbt_fifo_t mc_stack_safety_stateful = NULL;
-xbt_fifo_t mc_stack_safety_stateless = NULL;
-mc_stats_t mc_stats = NULL;
+/******************************* Initialisation of MC *******************************/
+/*********************************************************************************/
-/* Liveness */
+static void MC_dump_ignored_local_variables(void){
-mc_stats_pair_t mc_stats_pair = NULL;
-xbt_fifo_t mc_stack_liveness = NULL;
-mc_snapshot_t initial_snapshot_liveness = NULL;
+ if(mc_stack_comparison_ignore == NULL || xbt_dynar_is_empty(mc_stack_comparison_ignore))
+ return;
-xbt_automaton_t automaton;
-char *prog_name;
+ unsigned int cursor = 0;
+ mc_stack_ignore_variable_t current_var;
-static void MC_init_liveness(xbt_automaton_t a, char *prgm);
-static void MC_assert_pair(int prop);
+ xbt_dynar_foreach(mc_stack_comparison_ignore, cursor, current_var){
+ MC_ignore_local_variable(current_var->var_name, current_var->frame);
+ }
+ xbt_dynar_free(&mc_stack_comparison_ignore);
+ mc_stack_comparison_ignore = NULL;
+
+}
-/**
- * \brief Initialize the model-checker data structures
- */
-void MC_init_safety_stateless(void)
-{
+static void MC_dump_ignored_global_variables(void){
- /* Check if MC is already initialized */
- if (initial_snapshot)
+ if(mc_data_bss_comparison_ignore == NULL || xbt_dynar_is_empty(mc_data_bss_comparison_ignore))
return;
- mc_time = xbt_new0(double, simix_process_maxpid);
+ unsigned int cursor = 0;
+ mc_data_bss_ignore_variable_t current_var;
+
+ xbt_dynar_foreach(mc_data_bss_comparison_ignore, cursor, current_var){
+ MC_ignore_global_variable(current_var->name);
+ }
+
+ xbt_dynar_free(&mc_data_bss_comparison_ignore);
+ mc_data_bss_comparison_ignore = NULL;
+
+}
+
+void MC_init(){
+
+ int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
+
+ compare = 0;
/* Initialize the data structures that must be persistent across every
iteration of the model-checker (in RAW memory) */
+
MC_SET_RAW_MEM;
- /* Initialize statistics */
- mc_stats = xbt_new0(s_mc_stats_t, 1);
- mc_stats->state_size = 1;
+ MC_init_memory_map_info();
+
+ mc_local_variables_libsimgrid = xbt_dict_new_homogeneous(NULL);
+ mc_local_variables_binary = xbt_dict_new_homogeneous(NULL);
+ mc_global_variables_libsimgrid = xbt_dynar_new(sizeof(dw_variable_t), dw_variable_free_voidp);
+ mc_global_variables_binary = xbt_dynar_new(sizeof(dw_variable_t), dw_variable_free_voidp);
+ mc_variables_type_libsimgrid = xbt_dict_new_homogeneous(NULL);
+ mc_variables_type_binary = xbt_dict_new_homogeneous(NULL);
- /* Create exploration stack */
- mc_stack_safety_stateless = xbt_fifo_new();
+ XBT_INFO("Get debug information ...");
+
+ /* Get local variables in binary for state equality detection */
+ xbt_dict_t binary_location_list = MC_dwarf_get_location_list(xbt_binary_name);
+ MC_dwarf_get_variables(xbt_binary_name, binary_location_list, &mc_local_variables_binary, &mc_global_variables_binary, &mc_variables_type_binary);
+
+ /* Get local variables in libsimgrid for state equality detection */
+ xbt_dict_t libsimgrid_location_list = MC_dwarf_get_location_list(libsimgrid_path);
+ MC_dwarf_get_variables(libsimgrid_path, libsimgrid_location_list, &mc_local_variables_libsimgrid, &mc_global_variables_libsimgrid, &mc_variables_type_libsimgrid);
+
+ xbt_dict_free(&libsimgrid_location_list);
+ xbt_dict_free(&binary_location_list);
+
+ XBT_INFO("Get debug information done !");
+
+ /* Remove variables ignored before getting list of variables */
+ MC_dump_ignored_local_variables();
+ MC_dump_ignored_global_variables();
+
+ /* Get .plt section (start and end addresses) for data libsimgrid and data program comparison */
+ MC_get_libsimgrid_plt_section();
+ MC_get_binary_plt_section();
+
+ /* Init parmap */
+ parmap = xbt_parmap_mc_new(xbt_os_get_numcores(), XBT_PARMAP_DEFAULT);
MC_UNSET_RAW_MEM;
- MC_dpor_init();
+ /* Ignore some variables from xbt/ex.h used by exception e for stacks comparison */
+ MC_ignore_local_variable("e", "*");
+ MC_ignore_local_variable("__ex_cleanup", "*");
+ MC_ignore_local_variable("__ex_mctx_en", "*");
+ MC_ignore_local_variable("__ex_mctx_me", "*");
+ MC_ignore_local_variable("__xbt_ex_ctx_ptr", "*");
+ MC_ignore_local_variable("_log_ev", "*");
+ MC_ignore_local_variable("_throw_ctx", "*");
+ MC_ignore_local_variable("ctx", "*");
+
+ MC_ignore_local_variable("next_context", "smx_ctx_sysv_suspend_serial");
+ MC_ignore_local_variable("i", "smx_ctx_sysv_suspend_serial");
+
+ /* Ignore local variable about time used for tracing */
+ MC_ignore_local_variable("start_time", "*");
+
+ MC_ignore_global_variable("mc_comp_times");
+ MC_ignore_global_variable("mc_snapshot_comparison_time");
+ MC_ignore_global_variable("mc_time");
+ MC_ignore_global_variable("smpi_current_rank");
+ MC_ignore_global_variable("smx_current_context_serial");
+ MC_ignore_global_variable("smx_current_context_key");
+ MC_ignore_global_variable("sysv_maestro_context");
+ MC_ignore_global_variable("counter"); /* Static variable used for tracing */
+
+
+ if(raw_mem_set)
+ MC_SET_RAW_MEM;
+
+}
+
+static void MC_init_dot_output(){ /* FIXME : more colors */
+
+ colors[0] = "blue";
+ colors[1] = "red";
+ colors[2] = "green3";
+ colors[3] = "goldenrod";
+ colors[4] = "brown";
+ colors[5] = "purple";
+ colors[6] = "magenta";
+ colors[7] = "turquoise4";
+ colors[8] = "gray25";
+ colors[9] = "forestgreen";
+ colors[10] = "hotpink";
+ colors[11] = "lightblue";
+ colors[12] = "tan";
+
+ dot_output = fopen(_sg_mc_dot_output_file, "w");
+
+ if(dot_output == NULL){
+ perror("Error open dot output file");
+ xbt_abort();
+ }
+
+ fprintf(dot_output, "digraph graphname{\n fixedsize=true; rankdir=TB; ranksep=.25; edge [fontsize=12]; node [fontsize=10, shape=circle,width=.5 ]; graph [resolution=20, fontsize=10];\n");
+
+}
+
+/******************************* Core of MC *******************************/
+/**************************************************************************/
+
+void MC_do_the_modelcheck_for_real() {
MC_SET_RAW_MEM;
- /* Save the initial state */
- initial_snapshot = xbt_new0(s_mc_snapshot_t, 1);
- MC_take_snapshot(initial_snapshot);
+ mc_comp_times = xbt_new0(s_mc_comparison_times_t, 1);
MC_UNSET_RAW_MEM;
+
+ if (!_sg_mc_property_file || _sg_mc_property_file[0]=='\0') {
+ if (mc_reduce_kind==e_mc_reduce_unset)
+ mc_reduce_kind=e_mc_reduce_dpor;
+
+ XBT_INFO("Check a safety property");
+ MC_modelcheck_safety();
+
+ } else {
+
+ if (mc_reduce_kind==e_mc_reduce_unset)
+ mc_reduce_kind=e_mc_reduce_none;
+
+ XBT_INFO("Check the liveness property %s",_sg_mc_property_file);
+ MC_automaton_load(_sg_mc_property_file);
+ MC_modelcheck_liveness();
+ }
}
-void MC_init_safety_stateful(void){
+void MC_modelcheck_safety(void)
+{
+ int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
-
- /* Check if MC is already initialized */
- if (initial_snapshot)
+ /* Check if MC is already initialized */
+ if (initial_state_safety)
return;
mc_time = xbt_new0(double, simix_process_maxpid);
+ /* mc_time refers to clock for each process -> ignore it for heap comparison */
+ MC_ignore_heap(mc_time, simix_process_maxpid * sizeof(double));
+
/* Initialize the data structures that must be persistent across every
iteration of the model-checker (in RAW memory) */
+
MC_SET_RAW_MEM;
/* Initialize statistics */
mc_stats->state_size = 1;
/* Create exploration stack */
- mc_stack_safety_stateful = xbt_fifo_new();
+ mc_stack_safety = xbt_fifo_new();
+
+ if((_sg_mc_dot_output_file != NULL) && (_sg_mc_dot_output_file[0]!='\0'))
+ MC_init_dot_output();
+
+ MC_UNSET_RAW_MEM;
+
+ if(_sg_mc_visited > 0){
+ MC_init();
+ }else{
+ MC_SET_RAW_MEM;
+ MC_init_memory_map_info();
+ MC_get_libsimgrid_plt_section();
+ MC_get_binary_plt_section();
+ MC_UNSET_RAW_MEM;
+ }
+
+ MC_dpor_init();
+ MC_SET_RAW_MEM;
+ /* Save the initial state */
+ initial_state_safety = xbt_new0(s_mc_global_t, 1);
+ initial_state_safety->snapshot = MC_take_snapshot();
MC_UNSET_RAW_MEM;
- MC_dpor_stateful_init();
+ MC_dpor();
+ if(raw_mem_set)
+ MC_SET_RAW_MEM;
+ xbt_abort();
+ //MC_exit();
}
-static void MC_init_liveness(xbt_automaton_t a, char *prgm){
+void MC_modelcheck_liveness(){
- XBT_DEBUG("Start init mc");
-
- mc_time = xbt_new0(double, simix_process_maxpid);
+ int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
- /* Initialize the data structures that must be persistent across every
- iteration of the model-checker (in RAW memory) */
+ MC_init();
- MC_SET_RAW_MEM;
+ mc_time = xbt_new0(double, simix_process_maxpid);
+ /* mc_time refers to clock for each process -> ignore it for heap comparison */
+ MC_ignore_heap(mc_time, simix_process_maxpid * sizeof(double));
+
+ MC_SET_RAW_MEM;
+
/* Initialize statistics */
- mc_stats_pair = xbt_new0(s_mc_stats_pair_t, 1);
-
- XBT_DEBUG("Creating stack");
+ mc_stats = xbt_new0(s_mc_stats_t, 1);
+ mc_stats->state_size = 1;
- /* Create exploration stack */
+ /* Create exploration stack */
mc_stack_liveness = xbt_fifo_new();
- MC_UNSET_RAW_MEM;
-
- automaton = a;
- prog_name = strdup(prgm);
-
- MC_ddfs_init();
+ /* Create the initial state */
+ initial_state_liveness = xbt_new0(s_mc_global_t, 1);
+ if((_sg_mc_dot_output_file != NULL) && (_sg_mc_dot_output_file[0]!='\0'))
+ MC_init_dot_output();
-}
-
-
-void MC_modelcheck(void)
-{
- MC_init_safety_stateless();
- MC_dpor();
- MC_exit();
-}
+ MC_UNSET_RAW_MEM;
-void MC_modelcheck_stateful(void)
-{
- MC_init_safety_stateful();
- MC_dpor_stateful();
- MC_exit();
-}
+ MC_ddfs_init();
+ /* We're done */
+ MC_print_statistics(mc_stats);
+ xbt_free(mc_time);
-void MC_modelcheck_liveness(xbt_automaton_t a, char *prgm){
- MC_init_liveness(a, prgm);
- MC_exit_liveness();
-}
+ if(raw_mem_set)
+ MC_SET_RAW_MEM;
-void MC_exit_liveness(void)
-{
- MC_print_statistics_pairs(mc_stats_pair);
- //xbt_free(mc_time);
- //MC_memory_exit();
- exit(0);
}
void MC_exit(void)
{
- MC_print_statistics(mc_stats);
xbt_free(mc_time);
MC_memory_exit();
+ //xbt_abort();
+}
+
+int SIMIX_pre_mc_random(smx_simcall_t simcall, int min, int max){
+
+ return simcall->mc_value;
}
int MC_random(int min, int max)
{
/*FIXME: return mc_current_state->executed_transition->random.value;*/
- return 0;
+ return simcall_mc_random(min, max);
}
/**
xbt_dynar_foreach(simix_global->process_that_ran, iter, process) {
req = &process->simcall;
if (req->call != SIMCALL_NONE && !MC_request_is_visible(req))
- SIMIX_simcall_pre(req, 0);
+ SIMIX_simcall_pre(req, 0);
}
}
}
}
/**
- * \brief Re-executes from the initial state all the transitions indicated by
+ * \brief Re-executes from the state at position start all the transitions indicated by
* a given model-checker stack.
* \param stack The stack with the transitions to execute.
-*/
-void MC_replay(xbt_fifo_t stack)
+ * \param start Start index to begin the re-execution.
+ */
+void MC_replay(xbt_fifo_t stack, int start)
{
- int value;
+ int raw_mem = (mmalloc_get_current_heap() == raw_heap);
+
+ int value, i = 1, count = 1;
char *req_str;
smx_simcall_t req = NULL, saved_req = NULL;
- xbt_fifo_item_t item;
+ xbt_fifo_item_t item, start_item;
mc_state_t state;
+ smx_process_t process = NULL;
XBT_DEBUG("**** Begin Replay ****");
- /* Restore the initial state */
- MC_restore_snapshot(initial_snapshot);
- /* At the moment of taking the snapshot the raw heap was set, so restoring
- * it will set it back again, we have to unset it to continue */
+ if(start == -1){
+ /* Restore the initial state */
+ MC_restore_snapshot(initial_state_safety->snapshot);
+ /* At the moment of taking the snapshot the raw heap was set, so restoring
+ * it will set it back again, we have to unset it to continue */
+ MC_UNSET_RAW_MEM;
+ }
+
+ start_item = xbt_fifo_get_last_item(stack);
+ if(start != -1){
+ while (i != start){
+ start_item = xbt_fifo_get_prev_item(start_item);
+ i++;
+ }
+ }
+
+ MC_SET_RAW_MEM;
+ xbt_dict_reset(first_enabled_state);
+ xbt_swag_foreach(process, simix_global->process_list){
+ if(MC_process_is_enabled(process)){
+ char *key = bprintf("%lu", process->pid);
+ char *data = bprintf("%d", count);
+ xbt_dict_set(first_enabled_state, key, data, NULL);
+ xbt_free(key);
+ }
+ }
MC_UNSET_RAW_MEM;
+
- /* Traverse the stack from the initial state and re-execute the transitions */
- for (item = xbt_fifo_get_last_item(stack);
+ /* Traverse the stack from the state at position start and re-execute the transitions */
+ for (item = start_item;
item != xbt_fifo_get_first_item(stack);
item = xbt_fifo_get_prev_item(item)) {
state = (mc_state_t) xbt_fifo_get_item_content(item);
saved_req = MC_state_get_executed_request(state, &value);
+ MC_SET_RAW_MEM;
+ char *key = bprintf("%lu", saved_req->issuer->pid);
+ xbt_dict_remove(first_enabled_state, key);
+ xbt_free(key);
+ MC_UNSET_RAW_MEM;
+
if(saved_req){
/* because we got a copy of the executed request, we have to fetch the
real one, pointed by the request field of the issuer process */
xbt_free(req_str);
}
}
-
+
SIMIX_simcall_pre(req, value);
MC_wait_for_requests();
+
+ count++;
+
+ MC_SET_RAW_MEM;
+ /* Insert in dict all enabled processes */
+ xbt_swag_foreach(process, simix_global->process_list){
+ if(MC_process_is_enabled(process) /*&& !MC_state_process_is_done(state, process)*/){
+ char *key = bprintf("%lu", process->pid);
+ if(xbt_dict_get_or_null(first_enabled_state, key) == NULL){
+ char *data = bprintf("%d", count);
+ xbt_dict_set(first_enabled_state, key, data, NULL);
+ }
+ xbt_free(key);
+ }
+ }
+ MC_UNSET_RAW_MEM;
/* Update statistics */
mc_stats->visited_states++;
mc_stats->executed_transitions++;
+
}
+
XBT_DEBUG("**** End Replay ****");
+
+ if(raw_mem)
+ MC_SET_RAW_MEM;
+ else
+ MC_UNSET_RAW_MEM;
+
+
}
void MC_replay_liveness(xbt_fifo_t stack, int all_stack)
{
+
+ initial_state_liveness->raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
+
int value;
char *req_str;
smx_simcall_t req = NULL, saved_req = NULL;
xbt_fifo_item_t item;
mc_state_t state;
- mc_pair_stateless_t pair;
+ mc_pair_t pair;
int depth = 1;
XBT_DEBUG("**** Begin Replay ****");
/* Restore the initial state */
- MC_restore_snapshot(initial_snapshot_liveness);
+ MC_restore_snapshot(initial_state_liveness->snapshot);
+
/* At the moment of taking the snapshot the raw heap was set, so restoring
* it will set it back again, we have to unset it to continue */
- MC_UNSET_RAW_MEM;
+ if(!initial_state_liveness->raw_mem_set)
+ MC_UNSET_RAW_MEM;
if(all_stack){
while(depth <= xbt_fifo_size(stack)){
- pair = (mc_pair_stateless_t) xbt_fifo_get_item_content(item);
+ pair = (mc_pair_t) xbt_fifo_get_item_content(item);
state = (mc_state_t) pair->graph_state;
if(pair->requests > 0){
- saved_req = MC_state_get_executed_request(state, &value);
- //XBT_DEBUG("SavedReq->call %u", saved_req->call);
+ saved_req = MC_state_get_executed_request(state, &value);
+ //XBT_DEBUG("SavedReq->call %u", saved_req->call);
- if(saved_req != NULL){
- /* because we got a copy of the executed request, we have to fetch the
- real one, pointed by the request field of the issuer process */
- req = &saved_req->issuer->simcall;
- //XBT_DEBUG("Req->call %u", req->call);
-
- /* Debug information */
- if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
- req_str = MC_request_to_string(req, value);
- XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
- xbt_free(req_str);
- }
-
- }
+ if(saved_req != NULL){
+ /* because we got a copy of the executed request, we have to fetch the
+ real one, pointed by the request field of the issuer process */
+ req = &saved_req->issuer->simcall;
+ //XBT_DEBUG("Req->call %u", req->call);
+
+ /* Debug information */
+ if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
+ req_str = MC_request_to_string(req, value);
+ XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
+ xbt_free(req_str);
+ }
+
+ }
- SIMIX_simcall_pre(req, value);
- MC_wait_for_requests();
+ SIMIX_simcall_pre(req, value);
+ MC_wait_for_requests();
}
depth++;
/* Update statistics */
- mc_stats_pair->visited_pairs++;
+ mc_stats->visited_pairs++;
+ mc_stats->executed_transitions++;
item = xbt_fifo_get_prev_item(item);
}
/* Traverse the stack from the initial state and re-execute the transitions */
for (item = xbt_fifo_get_last_item(stack);
- item != xbt_fifo_get_first_item(stack);
- item = xbt_fifo_get_prev_item(item)) {
+ item != xbt_fifo_get_first_item(stack);
+ item = xbt_fifo_get_prev_item(item)) {
- pair = (mc_pair_stateless_t) xbt_fifo_get_item_content(item);
+ pair = (mc_pair_t) xbt_fifo_get_item_content(item);
state = (mc_state_t) pair->graph_state;
if(pair->requests > 0){
- saved_req = MC_state_get_executed_request(state, &value);
- //XBT_DEBUG("SavedReq->call %u", saved_req->call);
+ saved_req = MC_state_get_executed_request(state, &value);
+ //XBT_DEBUG("SavedReq->call %u", saved_req->call);
- if(saved_req != NULL){
- /* because we got a copy of the executed request, we have to fetch the
- real one, pointed by the request field of the issuer process */
- req = &saved_req->issuer->simcall;
- //XBT_DEBUG("Req->call %u", req->call);
-
- /* Debug information */
- if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
- req_str = MC_request_to_string(req, value);
- XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
- xbt_free(req_str);
- }
-
- }
+ if(saved_req != NULL){
+ /* because we got a copy of the executed request, we have to fetch the
+ real one, pointed by the request field of the issuer process */
+ req = &saved_req->issuer->simcall;
+ //XBT_DEBUG("Req->call %u", req->call);
+
+ /* Debug information */
+ if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
+ req_str = MC_request_to_string(req, value);
+ XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
+ xbt_free(req_str);
+ }
+
+ }
- SIMIX_simcall_pre(req, value);
- MC_wait_for_requests();
+ SIMIX_simcall_pre(req, value);
+ MC_wait_for_requests();
}
depth++;
/* Update statistics */
- mc_stats_pair->visited_pairs++;
+ mc_stats->visited_pairs++;
+ mc_stats->executed_transitions++;
}
}
XBT_DEBUG("**** End Replay ****");
-}
+ if(initial_state_liveness->raw_mem_set)
+ MC_SET_RAW_MEM;
+ else
+ MC_UNSET_RAW_MEM;
+
+}
/**
* \brief Dumps the contents of a model-checker's stack and shows the actual
* execution trace
* \param stack The stack to dump
-*/
-void MC_dump_stack_safety_stateless(xbt_fifo_t stack)
+ */
+void MC_dump_stack_safety(xbt_fifo_t stack)
{
- mc_state_t state;
+
+ int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
- MC_show_stack_safety_stateless(stack);
+ MC_show_stack_safety(stack);
- MC_SET_RAW_MEM;
- while ((state = (mc_state_t) xbt_fifo_pop(stack)) != NULL)
- MC_state_delete(state);
- MC_UNSET_RAW_MEM;
+ if(!_sg_mc_checkpoint){
+
+ mc_state_t state;
+
+ MC_SET_RAW_MEM;
+ while ((state = (mc_state_t) xbt_fifo_pop(stack)) != NULL)
+ MC_state_delete(state);
+ MC_UNSET_RAW_MEM;
+
+ }
+
+ if(raw_mem_set)
+ MC_SET_RAW_MEM;
+ else
+ MC_UNSET_RAW_MEM;
+
}
-void MC_show_stack_safety_stateless(xbt_fifo_t stack)
+void MC_show_stack_safety(xbt_fifo_t stack)
{
+
+ int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
+
+ MC_SET_RAW_MEM;
+
int value;
mc_state_t state;
xbt_fifo_item_t item;
xbt_free(req_str);
}
}
-}
-void MC_show_deadlock(smx_simcall_t req)
-{
- /*char *req_str = NULL;*/
- XBT_INFO("**************************");
- XBT_INFO("*** DEAD-LOCK DETECTED ***");
- XBT_INFO("**************************");
- XBT_INFO("Locked request:");
- /*req_str = MC_request_to_string(req);
- XBT_INFO("%s", req_str);
- xbt_free(req_str);*/
- XBT_INFO("Counter-example execution trace:");
- MC_dump_stack_safety_stateless(mc_stack_safety_stateless);
+ if(!raw_mem_set)
+ MC_UNSET_RAW_MEM;
}
-void MC_show_deadlock_stateful(smx_simcall_t req)
+void MC_show_deadlock(smx_simcall_t req)
{
/*char *req_str = NULL;*/
XBT_INFO("**************************");
XBT_INFO("**************************");
XBT_INFO("Locked request:");
/*req_str = MC_request_to_string(req);
- XBT_INFO("%s", req_str);
- xbt_free(req_str);*/
+ XBT_INFO("%s", req_str);
+ xbt_free(req_str);*/
XBT_INFO("Counter-example execution trace:");
- MC_show_stack_safety_stateful(mc_stack_safety_stateful);
-}
-
-void MC_dump_stack_safety_stateful(xbt_fifo_t stack)
-{
- //mc_state_ws_t state;
-
- MC_show_stack_safety_stateful(stack);
-
- /*MC_SET_RAW_MEM;
- while ((state = (mc_state_t) xbt_fifo_pop(stack)) != NULL)
- MC_state_delete(state);
- MC_UNSET_RAW_MEM;*/
-}
-
-
-void MC_show_stack_safety_stateful(xbt_fifo_t stack)
-{
- int value;
- mc_state_ws_t state;
- xbt_fifo_item_t item;
- smx_simcall_t req;
- char *req_str = NULL;
-
- for (item = xbt_fifo_get_last_item(stack);
- (item ? (state = (mc_state_ws_t) (xbt_fifo_get_item_content(item)))
- : (NULL)); item = xbt_fifo_get_prev_item(item)) {
- req = MC_state_get_executed_request(state->graph_state, &value);
- if(req){
- req_str = MC_request_to_string(req, value);
- XBT_INFO("%s", req_str);
- xbt_free(req_str);
- }
- }
+ MC_dump_stack_safety(mc_stack_safety);
+ MC_print_statistics(mc_stats);
}
void MC_show_stack_liveness(xbt_fifo_t stack){
int value;
- mc_pair_stateless_t pair;
+ mc_pair_t pair;
xbt_fifo_item_t item;
smx_simcall_t req;
char *req_str = NULL;
for (item = xbt_fifo_get_last_item(stack);
- (item ? (pair = (mc_pair_stateless_t) (xbt_fifo_get_item_content(item)))
+ (item ? (pair = (mc_pair_t) (xbt_fifo_get_item_content(item)))
: (NULL)); item = xbt_fifo_get_prev_item(item)) {
req = MC_state_get_executed_request(pair->graph_state, &value);
if(req){
if(pair->requests>0){
- req_str = MC_request_to_string(req, value);
- XBT_INFO("%s", req_str);
- xbt_free(req_str);
+ req_str = MC_request_to_string(req, value);
+ XBT_INFO("%s", req_str);
+ xbt_free(req_str);
}else{
- XBT_INFO("End of system requests but evolution in Büchi automaton");
+ XBT_INFO("End of system requests but evolution in Büchi automaton");
}
}
}
}
void MC_dump_stack_liveness(xbt_fifo_t stack){
- mc_pair_stateless_t pair;
+
+ int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
+
+ mc_pair_t pair;
MC_SET_RAW_MEM;
- while ((pair = (mc_pair_stateless_t) xbt_fifo_pop(stack)) != NULL)
- MC_pair_stateless_delete(pair);
+ while ((pair = (mc_pair_t) xbt_fifo_pop(stack)) != NULL)
+ MC_pair_delete(pair);
MC_UNSET_RAW_MEM;
-}
+ if(raw_mem_set)
+ MC_SET_RAW_MEM;
-void MC_print_statistics(mc_stats_t stats)
-{
- //XBT_INFO("State space size ~= %lu", stats->state_size);
- XBT_INFO("Expanded states = %lu", stats->expanded_states);
- XBT_INFO("Visited states = %lu", stats->visited_states);
- XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
- XBT_INFO("Expanded / Visited = %lf",
- (double) stats->visited_states / stats->expanded_states);
- /*XBT_INFO("Exploration coverage = %lf",
- (double)stats->expanded_states / stats->state_size); */
}
-void MC_print_statistics_pairs(mc_stats_pair_t stats)
-{
- XBT_INFO("Expanded pairs = %lu", stats->expanded_pairs);
- XBT_INFO("Visited pairs = %lu", stats->visited_pairs);
- //XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
- XBT_INFO("Expanded / Visited = %lf",
- (double) stats->visited_pairs / stats->expanded_pairs);
- /*XBT_INFO("Exploration coverage = %lf",
- (double)stats->expanded_states / stats->state_size); */
-}
-void MC_assert(int prop)
+void MC_print_statistics(mc_stats_t stats)
{
- if (MC_IS_ENABLED && !prop) {
- XBT_INFO("**************************");
- XBT_INFO("*** PROPERTY NOT VALID ***");
- XBT_INFO("**************************");
- XBT_INFO("Counter-example execution trace:");
- MC_dump_stack_safety_stateless(mc_stack_safety_stateless);
- MC_print_statistics(mc_stats);
- xbt_abort();
+ if(stats->expanded_pairs == 0){
+ XBT_INFO("Expanded states = %lu", stats->expanded_states);
+ XBT_INFO("Visited states = %lu", stats->visited_states);
+ }else{
+ XBT_INFO("Expanded pairs = %lu", stats->expanded_pairs);
+ XBT_INFO("Visited pairs = %lu", stats->visited_pairs);
+ }
+ XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
+ MC_SET_RAW_MEM;
+ if((_sg_mc_dot_output_file != NULL) && (_sg_mc_dot_output_file[0]!='\0')){
+ fprintf(dot_output, "}\n");
+ fclose(dot_output);
}
+ MC_UNSET_RAW_MEM;
}
-void MC_assert_stateful(int prop)
+void MC_assert(int prop)
{
- if (MC_IS_ENABLED && !prop) {
+ if (MC_is_active() && !prop){
XBT_INFO("**************************");
XBT_INFO("*** PROPERTY NOT VALID ***");
XBT_INFO("**************************");
XBT_INFO("Counter-example execution trace:");
- MC_dump_stack_safety_stateful(mc_stack_safety_stateful);
+ MC_dump_stack_safety(mc_stack_safety);
MC_print_statistics(mc_stats);
xbt_abort();
}
}
-
-static void MC_assert_pair(int prop){
- if (MC_IS_ENABLED && !prop) {
- XBT_INFO("**************************");
- XBT_INFO("*** PROPERTY NOT VALID ***");
- XBT_INFO("**************************");
- //XBT_INFO("Counter-example execution trace:");
- MC_show_stack_liveness(mc_stack_liveness);
- //MC_dump_snapshot_stack(mc_snapshot_stack);
- MC_print_statistics_pairs(mc_stats_pair);
- xbt_abort();
- }
+void MC_cut(void){
+ user_max_depth_reached = 1;
}
void MC_process_clock_add(smx_process_t process, double amount)
double MC_process_clock_get(smx_process_t process)
{
- if(mc_time)
- return mc_time[process->pid];
- else
+ if(mc_time){
+ if(process != NULL)
+ return mc_time[process->pid];
+ else
+ return -1;
+ }else{
return 0;
+ }
}
-void MC_diff(void){
+void MC_automaton_load(const char *file){
- mc_snapshot_t sn = xbt_new0(s_mc_snapshot_t, 1);
- MC_take_snapshot_liveness(sn);
+ int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
- int i;
+ MC_SET_RAW_MEM;
- XBT_INFO("Number of regions : %u", sn->num_reg);
+ if (_mc_property_automaton == NULL)
+ _mc_property_automaton = xbt_automaton_new();
+
+ xbt_automaton_load(_mc_property_automaton,file);
- for(i=0; i<sn->num_reg; i++){
-
- switch(sn->regions[i]->type){
- case 0: /* heap */
- XBT_INFO("Size of heap : %zu", sn->regions[i]->size);
- mmalloc_display_info_heap(sn->regions[i]->data);
- break;
- case 1 : /* libsimgrid */
- XBT_INFO("Size of libsimgrid : %zu", sn->regions[i]->size);
- break;
- case 2 : /* data program */
- XBT_INFO("Size of data program : %zu", sn->regions[i]->size);
- break;
- case 3 : /* stack */
- XBT_INFO("Size of stack : %zu", sn->regions[i]->size);
- XBT_INFO("Start addr of stack : %p", sn->regions[i]->start_addr);
- break;
- }
+ MC_UNSET_RAW_MEM;
- }
+ if(raw_mem_set)
+ MC_SET_RAW_MEM;
+
+}
+
+void MC_automaton_new_propositional_symbol(const char* id, void* fct) {
+
+ int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
+
+ MC_SET_RAW_MEM;
+ if (_mc_property_automaton == NULL)
+ _mc_property_automaton = xbt_automaton_new();
+
+ xbt_automaton_propositional_symbol_new(_mc_property_automaton,id,fct);
+
+ MC_UNSET_RAW_MEM;
+
+ if(raw_mem_set)
+ MC_SET_RAW_MEM;
+
}
+
+
+