#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/automaton_create.h"
+#include "xbt/automaton.h"
XBT_LOG_NEW_CATEGORY(mc, "All MC categories");
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_global, mc,
"Logging specific to MC (global)");
+/* Configuration support */
+e_mc_reduce_t mc_reduce_kind=e_mc_reduce_unset;
+
+extern int _surf_init_status;
+void _mc_cfg_cb_reduce(const char *name, int pos) {
+ if (_surf_init_status && !_surf_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(_surf_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);
+ }
+ xbt_cfg_set_int(_surf_cfg_set,"model-check",1);
+}
+
+void _mc_cfg_cb_checkpoint(const char *name, int pos) {
+ if (_surf_init_status && !_surf_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.");
+ }
+ _surf_mc_checkpoint = xbt_cfg_get_int(_surf_cfg_set, name);
+ xbt_cfg_set_int(_surf_cfg_set,"model-check",1);
+}
+void _mc_cfg_cb_property(const char *name, int pos) {
+ if (_surf_init_status && !_surf_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.");
+ }
+ _surf_mc_property_file= xbt_cfg_get_string(_surf_cfg_set, name);
+ xbt_cfg_set_int(_surf_cfg_set,"model-check",1);
+}
+
+
/* 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;
+int raw_mem_set;
/* Safety */
-xbt_fifo_t mc_stack_safety_stateful = NULL;
-xbt_fifo_t mc_stack_safety_stateless = NULL;
+xbt_fifo_t mc_stack_safety = NULL;
mc_stats_t mc_stats = NULL;
/* Liveness */
mc_stats_pair_t mc_stats_pair = NULL;
xbt_fifo_t mc_stack_liveness = NULL;
mc_snapshot_t initial_snapshot_liveness = NULL;
+int compare;
+xbt_dynar_t mc_binary_local_variables = NULL;
+
+extern xbt_dynar_t mmalloc_ignore;
+extern xbt_dynar_t stacks_areas;
-xbt_automaton_t automaton;
+xbt_automaton_t _mc_property_automaton = NULL;
-static void MC_init_liveness(xbt_automaton_t a);
static void MC_assert_pair(int prop);
+void MC_do_the_modelcheck_for_real() {
+ if (!_surf_mc_property_file || _surf_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();
+
+ } else {
+
+ if (mc_reduce_kind==e_mc_reduce_unset)
+ mc_reduce_kind=e_mc_reduce_none;
+
+ XBT_INFO("Check the liveness property %s",_surf_mc_property_file);
+ MC_automaton_load(_surf_mc_property_file);
+ MC_modelcheck_liveness();
+ }
+}
/**
* \brief Initialize the model-checker data structures
*/
-void MC_init_safety_stateless(void)
+void MC_init_safety(void)
{
+ raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
+
/* Check if MC is already initialized */
if (initial_snapshot)
return;
/* 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_stateless = xbt_fifo_new();
+ mc_stack_safety = xbt_fifo_new();
MC_UNSET_RAW_MEM;
initial_snapshot = xbt_new0(s_mc_snapshot_t, 1);
MC_take_snapshot(initial_snapshot);
MC_UNSET_RAW_MEM;
-}
-void MC_init_safety_stateful(void){
+ if(raw_mem_set)
+ MC_SET_RAW_MEM;
+ else
+ MC_UNSET_RAW_MEM;
- /* Check if MC is already initialized */
- if (initial_snapshot)
- return;
-
- mc_time = xbt_new0(double, simix_process_maxpid);
-
- /* 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;
-
- /* Create exploration stack */
- mc_stack_safety_stateful = xbt_fifo_new();
-
- MC_UNSET_RAW_MEM;
+}
- MC_dpor_stateful_init();
+void MC_compare(void){
+ compare = 1;
+}
+void MC_modelcheck(void)
+{
+ MC_init_safety();
+ MC_dpor();
+ MC_exit();
}
-static void MC_init_liveness(xbt_automaton_t a){
+void MC_modelcheck_liveness(){
+
+ raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
+ /* init stuff */
XBT_DEBUG("Start init mc");
mc_time = xbt_new0(double, simix_process_maxpid);
+ /* mc_time refers to clock for each process -> ignore it for heap comparison */
+ int i;
+ for(i = 0; i<simix_process_maxpid; i++)
+ MC_ignore(&(mc_time[i]), sizeof(double));
+
+ compare = 0;
+
/* Initialize the data structures that must be persistent across every
iteration of the model-checker (in RAW memory) */
MC_SET_RAW_MEM;
+ mc_binary_local_variables = xbt_dynar_new(sizeof(dw_frame_t), NULL);
+
/* Initialize statistics */
mc_stats_pair = xbt_new0(s_mc_stats_pair_t, 1);
XBT_DEBUG("Creating stack");
- /* Create exploration stack */
+ /* Create exploration stack */
mc_stack_liveness = xbt_fifo_new();
MC_UNSET_RAW_MEM;
- automaton = a;
+ /* Get local variables in binary for state equality detection */
+ MC_get_binary_local_variables();
MC_ddfs_init();
-
-}
-
-
-void MC_modelcheck(void)
-{
- MC_init_safety_stateless();
- MC_dpor();
- MC_exit();
-}
-
-void MC_modelcheck_stateful(void)
-{
- MC_init_safety_stateful();
- MC_dpor_stateful();
- MC_exit();
-}
-
-
-void MC_modelcheck_liveness(xbt_automaton_t a){
- MC_init_liveness(a);
- MC_exit_liveness();
-}
-
-void MC_exit_liveness(void)
-{
+ /* We're done */
MC_print_statistics_pairs(mc_stats_pair);
- //xbt_free(mc_time);
- //MC_memory_exit();
+ xbt_free(mc_time);
+ MC_memory_exit();
exit(0);
}
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;
+ raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
+
+ int value, i = 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;
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 */
- MC_UNSET_RAW_MEM;
+ if(start == -1){
+ /* 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 */
+ MC_UNSET_RAW_MEM;
+ }
- /* Traverse the stack from the initial state and re-execute the transitions */
- for (item = xbt_fifo_get_last_item(stack);
+ start_item = xbt_fifo_get_last_item(stack);
+ if(start != -1){
+ while (i != start){
+ start_item = xbt_fifo_get_prev_item(start_item);
+ i++;
+ }
+ }
+
+ /* 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)) {
mc_stats->executed_transitions++;
}
XBT_DEBUG("**** End Replay ****");
+
+ if(raw_mem_set)
+ MC_SET_RAW_MEM;
+ else
+ MC_UNSET_RAW_MEM;
+
+
}
void MC_replay_liveness(xbt_fifo_t stack, int all_stack)
{
+
+ raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
+
int value;
char *req_str;
smx_simcall_t req = NULL, saved_req = NULL;
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++;
/* 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);
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++;
}
XBT_DEBUG("**** End Replay ****");
-}
+ if(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;
+
+ 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(!_surf_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 value;
mc_state_t state;
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_dump_stack_safety_stateless(mc_stack_safety_stateless);
-}
-
-void MC_show_deadlock_stateful(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_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);
}
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){
+
+ raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
+
mc_pair_stateless_t pair;
MC_SET_RAW_MEM;
while ((pair = (mc_pair_stateless_t) xbt_fifo_pop(stack)) != NULL)
MC_pair_stateless_delete(pair);
MC_UNSET_RAW_MEM;
+
+ if(raw_mem_set)
+ MC_SET_RAW_MEM;
+ else
+ MC_UNSET_RAW_MEM;
+
}
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);
+ (double) stats->visited_states / stats->expanded_states);
/*XBT_INFO("Exploration coverage = %lf",
- (double)stats->expanded_states / stats->state_size); */
+ (double)stats->expanded_states / stats->state_size); */
}
void MC_print_statistics_pairs(mc_stats_pair_t stats)
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);
+ (double) stats->visited_pairs / stats->expanded_pairs);
/*XBT_INFO("Exploration coverage = %lf",
- (double)stats->expanded_states / stats->state_size); */
+ (double)stats->expanded_states / stats->state_size); */
}
void MC_assert(int prop)
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();
- }
-}
-
-void MC_assert_stateful(int prop)
-{
- if (MC_IS_ENABLED && !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("**************************");
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);
+ 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);
+ MC_UNSET_RAW_MEM;
+
+ if(raw_mem_set)
+ MC_SET_RAW_MEM;
+ else
+ MC_UNSET_RAW_MEM;
+
+}
+
+void MC_automaton_new_propositional_symbol(const char* id, void* fct) {
+
+ 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_new_propositional_symbol(_mc_property_automaton,id,fct);
+
+ MC_UNSET_RAW_MEM;
+
+ if(raw_mem_set)
+ MC_SET_RAW_MEM;
+ else
+ MC_UNSET_RAW_MEM;
+
+}
+
+/************ MC_ignore ***********/
+
+void MC_ignore_init(){
+ MC_SET_RAW_MEM;
+ mmalloc_ignore = xbt_dynar_new(sizeof(mc_ignore_region_t), NULL);
+ stacks_areas = xbt_dynar_new(sizeof(stack_region_t), NULL);
+ MC_UNSET_RAW_MEM;
+}
+
+void MC_ignore(void *address, size_t size){
+
+ MC_SET_RAW_MEM;
+
+ mc_ignore_region_t region = NULL;
+ region = xbt_new0(s_mc_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;
+ }else{
+ region->fragment = ((uintptr_t) (ADDR2UINT (address) % (BLOCKSIZE))) >> ((xbt_mheap_t)std_heap)->heapinfo[region->block].type;
+ }
+
+ unsigned int cursor = 0;
+ mc_ignore_region_t current_region;
+ xbt_dynar_foreach(mmalloc_ignore, cursor, current_region){
+ if(current_region->address > address)
break;
+ }
+
+ xbt_dynar_insert_at(mmalloc_ignore, cursor, ®ion);
+
+ MC_UNSET_RAW_MEM;
+}
+
+void MC_new_stack_area(void *stack, char *name){
+ MC_SET_RAW_MEM;
+ stack_region_t region = NULL;
+ region = xbt_new0(s_stack_region_t, 1);
+ region->address = stack;
+ region->process_name = strdup(name);
+ xbt_dynar_push(stacks_areas, ®ion);
+ MC_UNSET_RAW_MEM;
+}
+
+/************ DWARF ***********/
+
+static e_dw_location_type get_location(char *expr, dw_location_t entry);
+
+void MC_get_binary_local_variables(){
+
+ char *command = bprintf("dwarfdump -i %s", xbt_binary_name);
+
+ FILE* fp = popen(command, "r");
+
+ if(fp == NULL)
+ perror("popen failed");
+
+ char *line = NULL, *tmp_line = NULL, *tmp_location = NULL, *frame_name = NULL;
+ ssize_t read;
+ size_t n = 0;
+ int valid_variable = 1, valid_frame = 1;
+ char *node_type = NULL, *location_type = NULL, *variable_name = NULL, *lowpc = NULL, *highpc = NULL;
+ xbt_dynar_t split = NULL;
+
+ void *low_pc = NULL, *old_low_pc = NULL;
+
+ int compile_unit_found = 0; /* Detect if the program has been compiled with -g */
+
+ read = getline(&line, &n, fp);
+
+ while (read != -1) {
+
+ if(n == 0)
+ continue;
+
+ /* Wipeout the new line character */
+ line[read - 1] = '\0';
+
+ if(line[0] == '<'){
+
+ /* If the program hasn't been compiled with -g, no symbol (line starting with '<' ) found */
+ compile_unit_found = 1;
+
+ /* Get node type */
+ strtok(line, " ");
+ strtok(NULL, " ");
+ node_type = strtok(NULL, " ");
+
+ if(strcmp(node_type, "DW_TAG_subprogram") == 0){ /* New frame */
+
+ read = getline(&line, &n, fp);
+
+ while(read != -1 && line[0] != '<'){
+
+ if(n == 0)
+ continue;
+
+ node_type = strtok(line, " ");
+
+ if(node_type != NULL && strcmp(node_type, "DW_AT_name") == 0){
+
+ frame_name = strdup(strtok(NULL, " "));
+ xbt_str_trim(frame_name, NULL);
+ xbt_str_trim(frame_name, "\"");
+ read = getline(&line, &n, fp);
+
+ }else if(node_type != NULL && strcmp(node_type, "DW_AT_frame_base") == 0){
+
+ if(valid_frame == 1){
+
+ dw_frame_t frame = xbt_new0(s_dw_frame_t, 1);
+ frame->name = strdup(frame_name);
+ frame->variables = xbt_dynar_new(sizeof(dw_local_variable_t), NULL);
+ frame->location = xbt_new0(s_dw_location_t, 1);
+
+ location_type = strtok(NULL, " ");
+
+ if(strcmp(location_type, "<loclist") == 0){
+
+ frame->location->type = e_dw_loclist;
+ frame->location->location.loclist = xbt_dynar_new(sizeof(dw_location_entry_t), NULL);
+
+ read = getline(&line, &n, fp);
+ xbt_str_ltrim(line, NULL);
+
+ while(read != -1 && line[0] == '['){
+
+ strtok(line, "<");
+ lowpc = strdup(strtok(NULL, "<"));
+ highpc = strdup(strtok(NULL, ">"));
+ tmp_location = strdup(strtok(NULL, ">"));
+ lowpc[strlen(lowpc) - 1] = '\0'; /* Remove last character '>' */
+
+ dw_location_entry_t new_entry = xbt_new0(s_dw_location_entry_t, 1);
+
+ if(low_pc == NULL){
+ strtok(lowpc, "=");
+ new_entry->lowpc = (void *) strtoul(strtok(NULL, "="), NULL, 16);
+ strtok(highpc, "=");
+ new_entry->highpc = (void *) strtoul(strtok(NULL, "="), NULL, 16);
+ }else{
+ strtok(lowpc, "=");
+ old_low_pc = (void *)strtoul(strtok(NULL, "="), NULL, 16);
+ new_entry->lowpc = (char *)low_pc + (long)old_low_pc;
+ strtok(highpc, "=");
+ new_entry->highpc = (char*)low_pc + ((char *)((void *)strtoul(strtok(NULL, "="), NULL, 16)) - (char*)old_low_pc);
+ }
+
+ new_entry->location = xbt_new0(s_dw_location_t, 1);
+
+ get_location(tmp_location, new_entry->location);
+
+ xbt_dynar_push(frame->location->location.loclist, &new_entry);
+
+ read = getline(&line, &n, fp);
+ xbt_str_ltrim(line, NULL);
+ }
+
+ }else{
+ read = getline(&line, &n, fp);
+ frame->location->type = get_location(location_type, frame->location);
+
+ }
+
+ xbt_dynar_push(mc_binary_local_variables, &frame);
+
+ }else{
+
+ read = getline(&line, &n, fp);
+
+ }
+
+ }else if(node_type != NULL && (strcmp(node_type, "DW_AT_declaration") == 0 || strcmp(node_type, "DW_AT_abstract_origin") == 0 || strcmp(node_type, "DW_AT_artificial") == 0)){
+
+ read = getline(&line, &n, fp);
+ valid_frame = 0;
+
+ }else{
+
+ read = getline(&line, &n, fp);
+
+ }
+
+ }
+
+ valid_frame = 1;
+
+ }else if(strcmp(node_type, "DW_TAG_variable") == 0){ /* New variable */
+
+ variable_name = NULL;
+ location_type = NULL;
+
+ read = getline(&line, &n, fp);
+
+ while(read != -1 && line[0] != '<'){
+
+ if(n == 0)
+ continue;
+
+ tmp_line = strdup(line);
+
+ node_type = strtok(line, " ");
+
+ if(node_type != NULL && strcmp(node_type, "DW_AT_name") == 0){
+
+ variable_name = strdup(strtok(NULL, " "));
+ xbt_str_trim(variable_name, NULL);
+ xbt_str_trim(variable_name, "\"");
+ read = getline(&line, &n, fp);
+
+ }else if(node_type != NULL && strcmp(node_type, "DW_AT_location") == 0){
+
+ if(valid_variable == 1){
+
+ location_type = strdup(strtok(NULL, " "));
+
+ dw_local_variable_t variable = xbt_new0(s_dw_local_variable_t, 1);
+ variable->name = strdup(variable_name);
+ variable->location = xbt_new0(s_dw_location_t, 1);
+
+ if(strcmp(location_type, "<loclist") == 0){
+
+ variable->location->type = e_dw_loclist;
+ variable->location->location.loclist = xbt_dynar_new(sizeof(dw_location_entry_t), NULL);
+
+ read = getline(&line, &n, fp);
+ xbt_str_ltrim(line, NULL);
+
+ while(read != -1 && line[0] == '['){
+
+ strtok(line, "<");
+ lowpc = strdup(strtok(NULL, "<"));
+ highpc = strdup(strtok(NULL, ">"));
+ tmp_location = strdup(strtok(NULL, ">"));
+ lowpc[strlen(lowpc) - 1] = '\0'; /* Remove last character '>' */
+
+ dw_location_entry_t new_entry = xbt_new0(s_dw_location_entry_t, 1);
+
+ if(low_pc == NULL){
+ strtok(lowpc, "=");
+ new_entry->lowpc = (void *) strtoul(strtok(NULL, "="), NULL, 16);
+ strtok(highpc, "=");
+ new_entry->highpc = (void *) strtoul(strtok(NULL, "="), NULL, 16);
+ }else{
+ strtok(lowpc, "=");
+ old_low_pc = (void *)strtoul(strtok(NULL, "="), NULL, 16);
+ new_entry->lowpc = (char *)low_pc + (long)old_low_pc;
+ strtok(highpc, "=");
+ new_entry->highpc = (char*)low_pc + ((char *)((void *)strtoul(strtok(NULL, "="), NULL, 16)) - (char*)old_low_pc);
+ }
+
+ new_entry->location = xbt_new0(s_dw_location_t, 1);
+
+ get_location(tmp_location, new_entry->location);
+
+ xbt_dynar_push(variable->location->location.loclist, &new_entry);
+
+ read = getline(&line, &n, fp);
+ xbt_str_ltrim(line, NULL);
+ }
+
+ }else{
+
+ xbt_str_strip_spaces(tmp_line);
+ split = xbt_str_split(tmp_line, " ");
+ xbt_dynar_remove_at(split, 0, NULL);
+ location_type = xbt_str_join(split, " ");
+
+ variable->location->type = get_location(location_type, variable->location);
+ read = getline(&line, &n, fp);
+
+ }
+
+ xbt_dynar_push(((dw_frame_t)xbt_dynar_get_as(mc_binary_local_variables, xbt_dynar_length(mc_binary_local_variables) - 1, dw_frame_t))->variables, &variable);
+
+ }else{
+
+ read = getline(&line, &n, fp);
+
+ }
+
+ }else if(node_type != NULL && (strcmp(node_type, "DW_AT_artificial") == 0 || strcmp(node_type, "DW_AT_external") == 0)){
+
+ valid_variable = 0;
+ read = getline(&line, &n, fp);
+
+ }else{
+
+ read = getline(&line, &n, fp);
+
+ }
+
+ }
+
+ valid_variable = 1;
+
+ }else if(strcmp(node_type, "DW_TAG_compile_unit") == 0){
+
+ read = getline(&line, &n, fp);
+
+ while(read != -1 && line[0] != '<'){
+
+ if(n == 0)
+ continue;
+
+ node_type = strtok(line, " ");
+
+ if(node_type != NULL && strcmp(node_type, "DW_AT_low_pc") == 0){
+ low_pc = (void *) strtoul(strtok(NULL, " "), NULL, 16);
+ }
+
+ read = getline(&line, &n, fp);
+
+ }
+
+ }else{
+
+ read = getline(&line, &n, fp);
+
+ }
+
+ }else{
+
+ read = getline(&line, &n, fp);
+
}
}
+ free(line); free(tmp_line); free(tmp_location); free(frame_name);
+ free(location_type); free(variable_name); free(lowpc); free(highpc);
+ free(command);
+ pclose(fp);
+
+ if(compile_unit_found == 0){
+ XBT_INFO("Your program must be compiled with -g");
+ xbt_abort();
+ }
+
+ if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug))
+ print_local_variables(mc_binary_local_variables);
+
+
+}
+
+void print_local_variables(xbt_dynar_t list){
+
+ dw_frame_t frame;
+ dw_local_variable_t variable;
+ dw_location_entry_t entry;
+ dw_location_t location_entry;
+ unsigned int cursor = 0, cursor2 = 0, cursor3 = 0, cursor4 = 0;
+
+ xbt_dynar_foreach(list, cursor, frame){
+ fprintf(stderr, "Frame name : %s", frame->name);
+ fprintf(stderr, "Location type : %d\n", frame->location->type);
+ fprintf(stderr, "Variables : (%lu)\n", xbt_dynar_length(frame->variables));
+ xbt_dynar_foreach(frame->variables, cursor2, variable){
+ fprintf(stderr, "Name : %s", variable->name);
+ fprintf(stderr, "Location type : %d\n", variable->location->type);
+ switch(variable->location->type){
+ case e_dw_loclist :
+ xbt_dynar_foreach(variable->location->location.loclist, cursor3, entry){
+ fprintf(stderr, "Lowpc : %p, Highpc : %p,", entry->lowpc, entry->highpc);
+ switch(entry->location->type){
+ case e_dw_register :
+ fprintf(stderr, " Location : in register %d\n", entry->location->location.reg);
+ break;
+ case e_dw_bregister_op:
+ fprintf(stderr, " Location : Add %d to the value in register %d\n", entry->location->location.breg_op.offset, entry->location->location.breg_op.reg);
+ break;
+ case e_dw_lit:
+ fprintf(stderr, "Value already kwnown : %d\n", entry->location->location.lit);
+ break;
+ case e_dw_fbregister_op:
+ fprintf(stderr, " Location : %d bytes from logical frame pointer\n", entry->location->location.fbreg_op);
+ break;
+ case e_dw_compose:
+ fprintf(stderr, " Location :\n");
+ xbt_dynar_foreach(entry->location->location.compose, cursor4, location_entry){
+ switch(location_entry->type){
+ case e_dw_register :
+ fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
+ break;
+ case e_dw_bregister_op:
+ fprintf(stderr, " %d) add %d to the value in register %d\n", cursor4 + 1, location_entry->location.breg_op.offset, location_entry->location.breg_op.reg);
+ break;
+ case e_dw_lit:
+ fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
+ break;
+ case e_dw_fbregister_op:
+ fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
+ break;
+ case e_dw_deref:
+ fprintf(stderr, " %d) Pop the stack entry and treats it as an address (size of data %d)\n", cursor4 + 1, location_entry->location.deref_size);
+ break;
+ case e_dw_arithmetic :
+ fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
+ break;
+ case e_dw_piece:
+ fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
+ break;
+ case e_dw_constant :
+ fprintf(stderr, "%d) Constant %d\n", cursor4 + 1, location_entry->location.constant.value);
+ break;
+ default :
+ fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
+ break;
+ }
+ }
+ break;
+ default:
+ fprintf(stderr, "Location type not supported\n");
+ break;
+ }
+ }
+ break;
+ case e_dw_compose:
+ cursor4 = 0;
+ fprintf(stderr, "Location :\n");
+ xbt_dynar_foreach(variable->location->location.compose, cursor4, location_entry){
+ switch(location_entry->type){
+ case e_dw_register :
+ fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
+ break;
+ case e_dw_bregister_op:
+ fprintf(stderr, " %d) add %d to the value in register %d\n", cursor4 + 1, location_entry->location.breg_op.offset, location_entry->location.breg_op.reg);
+ break;
+ case e_dw_lit:
+ fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
+ break;
+ case e_dw_fbregister_op:
+ fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
+ break;
+ case e_dw_deref:
+ fprintf(stderr, " %d) Pop the stack entry and treats it as an address (size of data %d)\n", cursor4 + 1, location_entry->location.deref_size);
+ break;
+ case e_dw_arithmetic :
+ fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
+ break;
+ case e_dw_piece:
+ fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
+ break;
+ case e_dw_constant :
+ fprintf(stderr, "%d) Constant %d\n", cursor4 + 1, location_entry->location.constant.value);
+ break;
+ default :
+ fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
+ break;
+ }
+ }
+ break;
+ default :
+ fprintf(stderr, "Location type not supported\n");
+ break;
+ }
+ }
+ }
+
}
-xbt_automaton_t MC_create_automaton(const char *file){
- return xbt_create_automaton(file);
+static e_dw_location_type get_location(char *expr, dw_location_t entry){
+
+ int cursor = 0;
+ char *tok = NULL, *tmp_tok = NULL;
+
+ xbt_dynar_t tokens = xbt_str_split(expr, NULL);
+ xbt_dynar_remove_at(tokens, xbt_dynar_length(tokens) - 1, NULL);
+
+ if(xbt_dynar_length(tokens) > 1){
+
+ entry->type = e_dw_compose;
+ entry->location.compose = xbt_dynar_new(sizeof(dw_location_t), NULL);
+
+ while(cursor < xbt_dynar_length(tokens)){
+
+ tok = xbt_dynar_get_as(tokens, cursor, char*);
+
+ if(strncmp(tok, "DW_OP_reg", 9) == 0){
+ dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
+ new_element->type = e_dw_register;
+ if(tok[9] == 'x'){
+ new_element->location.reg = atoi(xbt_dynar_get_as(tokens, ++cursor, char*));
+ }else{
+ new_element->location.reg = atoi(strtok(tok, "DW_OP_reg"));
+ }
+ xbt_dynar_push(entry->location.compose, &new_element);
+ }else if(strcmp(tok, "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(tokens, ++cursor, char*));
+ xbt_dynar_push(entry->location.compose, &new_element);
+ }else if(strncmp(tok, "DW_OP_breg", 10) == 0){
+ dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
+ new_element->type = e_dw_bregister_op;
+ if(tok[10] == 'x'){
+ new_element->location.breg_op.reg = atoi(xbt_dynar_get_as(tokens, ++cursor, char*));
+ new_element->location.breg_op.offset = atoi(xbt_dynar_get_as(tokens, ++cursor, char*));
+ }else{
+ if(strchr(tok,'+') != NULL){
+ tmp_tok = strtok(tok,"DW_OP_breg");
+ new_element->location.breg_op.reg = atoi(strtok(tmp_tok,"+"));
+ new_element->location.breg_op.offset = atoi(strtok(NULL,"+"));
+ }else{
+ new_element->location.breg_op.reg = atoi(strtok(tok, "DW_OP_breg"));
+ new_element->location.breg_op.offset = atoi(xbt_dynar_get_as(tokens, ++cursor, char*));
+ }
+ }
+ xbt_dynar_push(entry->location.compose, &new_element);
+ }else if(strncmp(tok, "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(tok, "DW_OP_lit"));
+ xbt_dynar_push(entry->location.compose, &new_element);
+ }else if(strcmp(tok, "DW_OP_piece") == 0){
+ dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
+ new_element->type = e_dw_piece;
+ if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
+ new_element->location.piece = atoi(xbt_dynar_get_as(tokens, cursor, char*));
+ else
+ new_element->location.piece = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';
+ xbt_dynar_push(entry->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 ||
+ strcmp(tok, "DW_OP_plus_uconst") == 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(tok, "DW_OP_"));
+ xbt_dynar_push(entry->location.compose, &new_element);
+ }else if(strcmp(tok, "DW_OP_stack_value") == 0){
+ cursor++;
+ }else if(strcmp(tok, "DW_OP_deref_size") == 0){
+ dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
+ new_element->type = e_dw_deref;
+ 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(entry->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(entry->location.compose, &new_element);
+ }else if(strcmp(tok, "DW_OP_constu") == 0){
+ dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
+ new_element->type = e_dw_constant;
+ new_element->location.constant.is_signed = 0;
+ new_element->location.constant.bytes = 1;
+ 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(entry->location.compose, &new_element);
+ }else if(strcmp(tok, "DW_OP_consts") == 0){
+ dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
+ new_element->type = e_dw_constant;
+ new_element->location.constant.is_signed = 1;
+ new_element->location.constant.bytes = 1;
+ new_element->location.constant.value = atoi(xbt_dynar_get_as(tokens, ++cursor, char*));
+ xbt_dynar_push(entry->location.compose, &new_element);
+ }else if(strcmp(tok, "DW_OP_const1u") == 0 ||
+ strcmp(tok, "DW_OP_const2u") == 0 ||
+ strcmp(tok, "DW_OP_const4u") == 0 ||
+ strcmp(tok, "DW_OP_const8u") == 0){
+ dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
+ new_element->type = e_dw_constant;
+ new_element->location.constant.is_signed = 0;
+ new_element->location.constant.bytes = tok[11] - '0';
+ 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(entry->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_constant;
+ new_element->location.constant.is_signed = 1;
+ new_element->location.constant.bytes = tok[11] - '0';
+ new_element->location.constant.value = atoi(xbt_dynar_get_as(tokens, ++cursor, char*));
+ xbt_dynar_push(entry->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(entry->location.compose, &new_element);
+ }
+
+ cursor++;
+
+ }
+
+ xbt_dynar_free(&tokens);
+
+ return e_dw_compose;
+
+ }else{
+
+ if(strncmp(expr, "DW_OP_reg", 9) == 0){
+ entry->type = e_dw_register;
+ entry->location.reg = atoi(strtok(expr,"DW_OP_reg"));
+ }else if(strncmp(expr, "DW_OP_breg", 10) == 0){
+ entry->type = e_dw_bregister_op;
+ tok = strtok(expr, "+");
+ entry->location.breg_op.offset = atoi(strtok(NULL, "+"));
+ entry->location.breg_op.reg = atoi(strtok(tok, "DW_OP_breg"));
+ }else{
+ entry->type = e_dw_unsupported;
+ }
+
+ free(tok);
+ free(tmp_tok);
+ xbt_dynar_free(&tokens);
+
+ return entry->type;
+
+ }
+
}