1 /* Copyright (c) 2008-2012 Da SimGrid Team. All rights reserved. */
3 /* This program is free software; you can redistribute it and/or modify it
4 * under the terms of the license (GNU LGPL) which comes with this package. */
11 #include "../surf/surf_private.h"
12 #include "../simix/smx_private.h"
13 #include "../xbt/mmalloc/mmprivate.h"
15 #include "mc_private.h"
16 #include "xbt/automaton.h"
19 XBT_LOG_NEW_CATEGORY(mc, "All MC categories");
20 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_global, mc,
21 "Logging specific to MC (global)");
23 /* Configuration support */
24 e_mc_reduce_t mc_reduce_kind=e_mc_reduce_unset;
27 extern int _surf_init_status;
28 void _mc_cfg_cb_reduce(const char *name, int pos) {
29 if (_surf_init_status && !_surf_do_model_check) {
30 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.");
32 char *val= xbt_cfg_get_string(_surf_cfg_set, name);
33 if (!strcasecmp(val,"none")) {
34 mc_reduce_kind = e_mc_reduce_none;
35 } else if (!strcasecmp(val,"dpor")) {
36 mc_reduce_kind = e_mc_reduce_dpor;
38 xbt_die("configuration option %s can only take 'none' or 'dpor' as a value",name);
42 void _mc_cfg_cb_checkpoint(const char *name, int pos) {
43 if (_surf_init_status && !_surf_do_model_check) {
44 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.");
46 _surf_mc_checkpoint = xbt_cfg_get_int(_surf_cfg_set, name);
48 void _mc_cfg_cb_property(const char *name, int pos) {
49 if (_surf_init_status && !_surf_do_model_check) {
50 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.");
52 _surf_mc_property_file= xbt_cfg_get_string(_surf_cfg_set, name);
55 void _mc_cfg_cb_timeout(const char *name, int pos) {
56 if (_surf_init_status && !_surf_do_model_check) {
57 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.");
59 _surf_mc_timeout= xbt_cfg_get_int(_surf_cfg_set, name);
62 void _mc_cfg_cb_max_depth(const char *name, int pos) {
63 if (_surf_init_status && !_surf_do_model_check) {
64 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.");
66 _surf_mc_max_depth= xbt_cfg_get_int(_surf_cfg_set, name);
69 void _mc_cfg_cb_visited(const char *name, int pos) {
70 if (_surf_init_status && !_surf_do_model_check) {
71 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.");
73 _surf_mc_visited= xbt_cfg_get_int(_surf_cfg_set, name);
77 /* MC global data structures */
79 mc_state_t mc_current_state = NULL;
80 char mc_replay_mode = FALSE;
81 double *mc_time = NULL;
85 xbt_fifo_t mc_stack_safety = NULL;
86 mc_stats_t mc_stats = NULL;
87 mc_global_t initial_state_safety = NULL;
91 mc_stats_pair_t mc_stats_pair = NULL;
92 xbt_fifo_t mc_stack_liveness = NULL;
93 mc_global_t initial_state_liveness = NULL;
97 xbt_dict_t mc_local_variables = NULL;
99 xbt_dynar_t mc_global_variables = NULL;
101 /* Ignore mechanism */
102 xbt_dynar_t mc_stack_comparison_ignore;
103 xbt_dynar_t mc_data_bss_comparison_ignore;
104 extern xbt_dynar_t mc_heap_comparison_ignore;
105 extern xbt_dynar_t stacks_areas;
107 xbt_automaton_t _mc_property_automaton = NULL;
109 /* Static functions */
111 static void MC_assert_pair(int prop);
112 static dw_location_t get_location(xbt_dict_t location_list, char *expr);
113 static dw_frame_t get_frame_by_offset(xbt_dict_t all_variables, unsigned long int offset);
114 static size_t data_bss_ignore_size(void *address);
115 static void MC_get_global_variables(char *elf_file);
117 void MC_do_the_modelcheck_for_real() {
118 if (!_surf_mc_property_file || _surf_mc_property_file[0]=='\0') {
119 if (mc_reduce_kind==e_mc_reduce_unset)
120 mc_reduce_kind=e_mc_reduce_dpor;
122 XBT_INFO("Check a safety property");
123 MC_modelcheck_safety();
127 if (mc_reduce_kind==e_mc_reduce_unset)
128 mc_reduce_kind=e_mc_reduce_none;
130 XBT_INFO("Check the liveness property %s",_surf_mc_property_file);
131 MC_automaton_load(_surf_mc_property_file);
132 MC_modelcheck_liveness();
137 void MC_compare(void){
143 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
145 mc_time = xbt_new0(double, simix_process_maxpid);
147 /* mc_time refers to clock for each process -> ignore it for heap comparison */
149 for(i = 0; i<simix_process_maxpid; i++)
150 MC_ignore_heap(&(mc_time[i]), sizeof(double));
154 /* Initialize the data structures that must be persistent across every
155 iteration of the model-checker (in RAW memory) */
159 MC_init_memory_map_info();
161 mc_local_variables = xbt_dict_new_homogeneous(NULL);
163 /* Get local variables in binary for state equality detection */
164 xbt_dict_t binary_location_list = MC_get_location_list(xbt_binary_name);
165 MC_get_local_variables(xbt_binary_name, binary_location_list, &mc_local_variables);
167 /* Get local variables in libsimgrid for state equality detection */
168 xbt_dict_t libsimgrid_location_list = MC_get_location_list(libsimgrid_path);
169 MC_get_local_variables(libsimgrid_path, libsimgrid_location_list, &mc_local_variables);
171 /* Get .plt section (start and end addresses) for data libsimgrid and data program comparison */
172 get_libsimgrid_plt_section();
173 get_binary_plt_section();
175 /* Get global variables */
176 MC_get_global_variables(xbt_binary_name);
177 MC_get_global_variables(libsimgrid_path);
181 /* Ignore some variables from xbt/ex.h used by exception e for stacks comparison */
182 MC_ignore_stack("e", "*");
183 MC_ignore_stack("__ex_cleanup", "*");
184 MC_ignore_stack("__ex_mctx_en", "*");
185 MC_ignore_stack("__ex_mctx_me", "*");
186 MC_ignore_stack("_log_ev", "*");
187 MC_ignore_stack("_throw_ctx", "*");
188 MC_ignore_stack("ctx", "*");
196 void MC_modelcheck_safety(void)
198 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
200 /* Check if MC is already initialized */
201 if (initial_state_safety)
204 mc_time = xbt_new0(double, simix_process_maxpid);
206 /* Initialize the data structures that must be persistent across every
207 iteration of the model-checker (in RAW memory) */
211 /* Initialize statistics */
212 mc_stats = xbt_new0(s_mc_stats_t, 1);
213 mc_stats->state_size = 1;
215 /* Create exploration stack */
216 mc_stack_safety = xbt_fifo_new();
220 if(_surf_mc_visited > 0){
224 MC_init_memory_map_info();
225 get_libsimgrid_plt_section();
226 get_binary_plt_section();
233 /* Save the initial state */
234 initial_state_safety = xbt_new0(s_mc_global_t, 1);
235 initial_state_safety->snapshot = MC_take_snapshot();
246 void MC_modelcheck_liveness(){
248 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
254 /* Initialize statistics */
255 mc_stats_pair = xbt_new0(s_mc_stats_pair_t, 1);
257 /* Create exploration stack */
258 mc_stack_liveness = xbt_fifo_new();
260 initial_state_liveness = xbt_new0(s_mc_global_t, 1);
267 MC_print_statistics_pairs(mc_stats_pair);
283 int MC_random(int min, int max)
285 /*FIXME: return mc_current_state->executed_transition->random.value;*/
290 * \brief Schedules all the process that are ready to run
292 void MC_wait_for_requests(void)
294 smx_process_t process;
298 while (!xbt_dynar_is_empty(simix_global->process_to_run)) {
299 SIMIX_process_runall();
300 xbt_dynar_foreach(simix_global->process_that_ran, iter, process) {
301 req = &process->simcall;
302 if (req->call != SIMCALL_NONE && !MC_request_is_visible(req))
303 SIMIX_simcall_pre(req, 0);
308 int MC_deadlock_check()
310 int deadlock = FALSE;
311 smx_process_t process;
312 if(xbt_swag_size(simix_global->process_list)){
314 xbt_swag_foreach(process, simix_global->process_list){
315 if(process->simcall.call != SIMCALL_NONE
316 && MC_request_is_enabled(&process->simcall)){
326 * \brief Re-executes from the state at position start all the transitions indicated by
327 * a given model-checker stack.
328 * \param stack The stack with the transitions to execute.
329 * \param start Start index to begin the re-execution.
331 void MC_replay(xbt_fifo_t stack, int start)
333 int raw_mem = (mmalloc_get_current_heap() == raw_heap);
337 smx_simcall_t req = NULL, saved_req = NULL;
338 xbt_fifo_item_t item, start_item;
341 XBT_DEBUG("**** Begin Replay ****");
344 /* Restore the initial state */
345 MC_restore_snapshot(initial_state_safety->snapshot);
346 /* At the moment of taking the snapshot the raw heap was set, so restoring
347 * it will set it back again, we have to unset it to continue */
351 start_item = xbt_fifo_get_last_item(stack);
354 start_item = xbt_fifo_get_prev_item(start_item);
359 /* Traverse the stack from the state at position start and re-execute the transitions */
360 for (item = start_item;
361 item != xbt_fifo_get_first_item(stack);
362 item = xbt_fifo_get_prev_item(item)) {
364 state = (mc_state_t) xbt_fifo_get_item_content(item);
365 saved_req = MC_state_get_executed_request(state, &value);
368 /* because we got a copy of the executed request, we have to fetch the
369 real one, pointed by the request field of the issuer process */
370 req = &saved_req->issuer->simcall;
372 /* Debug information */
373 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
374 req_str = MC_request_to_string(req, value);
375 XBT_DEBUG("Replay: %s (%p)", req_str, state);
380 SIMIX_simcall_pre(req, value);
381 MC_wait_for_requests();
383 /* Update statistics */
384 mc_stats->visited_states++;
385 mc_stats->executed_transitions++;
387 XBT_DEBUG("**** End Replay ****");
397 void MC_replay_liveness(xbt_fifo_t stack, int all_stack)
400 initial_state_liveness->raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
404 smx_simcall_t req = NULL, saved_req = NULL;
405 xbt_fifo_item_t item;
407 mc_pair_stateless_t pair;
410 XBT_DEBUG("**** Begin Replay ****");
412 /* Restore the initial state */
413 MC_restore_snapshot(initial_state_liveness->snapshot);
415 /* At the moment of taking the snapshot the raw heap was set, so restoring
416 * it will set it back again, we have to unset it to continue */
417 if(!initial_state_liveness->raw_mem_set)
422 item = xbt_fifo_get_last_item(stack);
424 while(depth <= xbt_fifo_size(stack)){
426 pair = (mc_pair_stateless_t) xbt_fifo_get_item_content(item);
427 state = (mc_state_t) pair->graph_state;
429 if(pair->requests > 0){
431 saved_req = MC_state_get_executed_request(state, &value);
432 //XBT_DEBUG("SavedReq->call %u", saved_req->call);
434 if(saved_req != NULL){
435 /* because we got a copy of the executed request, we have to fetch the
436 real one, pointed by the request field of the issuer process */
437 req = &saved_req->issuer->simcall;
438 //XBT_DEBUG("Req->call %u", req->call);
440 /* Debug information */
441 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
442 req_str = MC_request_to_string(req, value);
443 XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
449 SIMIX_simcall_pre(req, value);
450 MC_wait_for_requests();
455 /* Update statistics */
456 mc_stats_pair->visited_pairs++;
458 item = xbt_fifo_get_prev_item(item);
463 /* Traverse the stack from the initial state and re-execute the transitions */
464 for (item = xbt_fifo_get_last_item(stack);
465 item != xbt_fifo_get_first_item(stack);
466 item = xbt_fifo_get_prev_item(item)) {
468 pair = (mc_pair_stateless_t) xbt_fifo_get_item_content(item);
469 state = (mc_state_t) pair->graph_state;
471 if(pair->requests > 0){
473 saved_req = MC_state_get_executed_request(state, &value);
474 //XBT_DEBUG("SavedReq->call %u", saved_req->call);
476 if(saved_req != NULL){
477 /* because we got a copy of the executed request, we have to fetch the
478 real one, pointed by the request field of the issuer process */
479 req = &saved_req->issuer->simcall;
480 //XBT_DEBUG("Req->call %u", req->call);
482 /* Debug information */
483 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
484 req_str = MC_request_to_string(req, value);
485 XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
491 SIMIX_simcall_pre(req, value);
492 MC_wait_for_requests();
497 /* Update statistics */
498 mc_stats_pair->visited_pairs++;
502 XBT_DEBUG("**** End Replay ****");
504 if(initial_state_liveness->raw_mem_set)
512 * \brief Dumps the contents of a model-checker's stack and shows the actual
514 * \param stack The stack to dump
516 void MC_dump_stack_safety(xbt_fifo_t stack)
519 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
521 MC_show_stack_safety(stack);
523 if(!_surf_mc_checkpoint){
528 while ((state = (mc_state_t) xbt_fifo_pop(stack)) != NULL)
529 MC_state_delete(state);
542 void MC_show_stack_safety(xbt_fifo_t stack)
546 xbt_fifo_item_t item;
548 char *req_str = NULL;
550 for (item = xbt_fifo_get_last_item(stack);
551 (item ? (state = (mc_state_t) (xbt_fifo_get_item_content(item)))
552 : (NULL)); item = xbt_fifo_get_prev_item(item)) {
553 req = MC_state_get_executed_request(state, &value);
555 req_str = MC_request_to_string(req, value);
556 XBT_INFO("%s", req_str);
562 void MC_show_deadlock(smx_simcall_t req)
564 /*char *req_str = NULL;*/
565 XBT_INFO("**************************");
566 XBT_INFO("*** DEAD-LOCK DETECTED ***");
567 XBT_INFO("**************************");
568 XBT_INFO("Locked request:");
569 /*req_str = MC_request_to_string(req);
570 XBT_INFO("%s", req_str);
572 XBT_INFO("Counter-example execution trace:");
573 MC_dump_stack_safety(mc_stack_safety);
577 void MC_show_stack_liveness(xbt_fifo_t stack){
579 mc_pair_stateless_t pair;
580 xbt_fifo_item_t item;
582 char *req_str = NULL;
584 for (item = xbt_fifo_get_last_item(stack);
585 (item ? (pair = (mc_pair_stateless_t) (xbt_fifo_get_item_content(item)))
586 : (NULL)); item = xbt_fifo_get_prev_item(item)) {
587 req = MC_state_get_executed_request(pair->graph_state, &value);
589 if(pair->requests>0){
590 req_str = MC_request_to_string(req, value);
591 XBT_INFO("%s", req_str);
594 XBT_INFO("End of system requests but evolution in Büchi automaton");
600 void MC_dump_stack_liveness(xbt_fifo_t stack){
602 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
604 mc_pair_stateless_t pair;
607 while ((pair = (mc_pair_stateless_t) xbt_fifo_pop(stack)) != NULL)
608 pair_stateless_free(pair);
617 void MC_print_statistics(mc_stats_t stats)
619 //XBT_INFO("State space size ~= %lu", stats->state_size);
620 XBT_INFO("Expanded states = %lu", stats->expanded_states);
621 XBT_INFO("Visited states = %lu", stats->visited_states);
622 XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
623 XBT_INFO("Expanded / Visited = %lf",
624 (double) stats->visited_states / stats->expanded_states);
625 /*XBT_INFO("Exploration coverage = %lf",
626 (double)stats->expanded_states / stats->state_size); */
629 void MC_print_statistics_pairs(mc_stats_pair_t stats)
631 XBT_INFO("Expanded pairs = %lu", stats->expanded_pairs);
632 XBT_INFO("Visited pairs = %lu", stats->visited_pairs);
633 //XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
634 XBT_INFO("Expanded / Visited = %lf",
635 (double) stats->visited_pairs / stats->expanded_pairs);
637 if(mmalloc_get_current_heap() == raw_heap)
641 void MC_assert(int prop)
643 if (MC_is_active() && !prop){
644 XBT_INFO("**************************");
645 XBT_INFO("*** PROPERTY NOT VALID ***");
646 XBT_INFO("**************************");
647 XBT_INFO("Counter-example execution trace:");
648 MC_dump_stack_safety(mc_stack_safety);
649 MC_print_statistics(mc_stats);
654 static void MC_assert_pair(int prop){
655 if (MC_is_active() && !prop) {
656 XBT_INFO("**************************");
657 XBT_INFO("*** PROPERTY NOT VALID ***");
658 XBT_INFO("**************************");
659 //XBT_INFO("Counter-example execution trace:");
660 MC_show_stack_liveness(mc_stack_liveness);
661 //MC_dump_snapshot_stack(mc_snapshot_stack);
662 MC_print_statistics_pairs(mc_stats_pair);
667 void MC_process_clock_add(smx_process_t process, double amount)
669 mc_time[process->pid] += amount;
672 double MC_process_clock_get(smx_process_t process)
676 return mc_time[process->pid];
684 void MC_automaton_load(const char *file){
686 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
690 if (_mc_property_automaton == NULL)
691 _mc_property_automaton = xbt_automaton_new();
693 xbt_automaton_load(_mc_property_automaton,file);
702 void MC_automaton_new_propositional_symbol(const char* id, void* fct) {
704 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
708 if (_mc_property_automaton == NULL)
709 _mc_property_automaton = xbt_automaton_new();
711 xbt_new_propositional_symbol(_mc_property_automaton,id,fct);
720 /************ MC_ignore ***********/
722 void MC_ignore_heap(void *address, size_t size){
724 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
728 if(mc_heap_comparison_ignore == NULL)
729 mc_heap_comparison_ignore = xbt_dynar_new(sizeof(mc_heap_ignore_region_t), NULL);
731 mc_heap_ignore_region_t region = NULL;
732 region = xbt_new0(s_mc_heap_ignore_region_t, 1);
733 region->address = address;
736 if((address >= std_heap) && (address <= (void*)((char *)std_heap + STD_HEAP_SIZE))){
738 region->block = ((char*)address - (char*)((xbt_mheap_t)std_heap)->heapbase) / BLOCKSIZE + 1;
740 if(((xbt_mheap_t)std_heap)->heapinfo[region->block].type == 0){
741 region->fragment = -1;
743 region->fragment = ((uintptr_t) (ADDR2UINT (address) % (BLOCKSIZE))) >> ((xbt_mheap_t)std_heap)->heapinfo[region->block].type;
748 unsigned int cursor = 0;
749 mc_heap_ignore_region_t current_region;
750 xbt_dynar_foreach(mc_heap_comparison_ignore, cursor, current_region){
751 if(current_region->address > address)
755 xbt_dynar_insert_at(mc_heap_comparison_ignore, cursor, ®ion);
763 void MC_ignore_data_bss(void *address, size_t size){
765 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
769 if(mc_data_bss_comparison_ignore == NULL)
770 mc_data_bss_comparison_ignore = xbt_dynar_new(sizeof(mc_data_bss_ignore_variable_t), NULL);
772 if(xbt_dynar_is_empty(mc_data_bss_comparison_ignore)){
774 mc_data_bss_ignore_variable_t var = NULL;
775 var = xbt_new0(s_mc_data_bss_ignore_variable_t, 1);
776 var->address = address;
779 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, 0, &var);
783 unsigned int cursor = 0;
785 int end = xbt_dynar_length(mc_data_bss_comparison_ignore) - 1;
786 mc_data_bss_ignore_variable_t current_var = NULL;
789 cursor = (start + end) / 2;
790 current_var = (mc_data_bss_ignore_variable_t)xbt_dynar_get_as(mc_data_bss_comparison_ignore, cursor, mc_data_bss_ignore_variable_t);
791 if(current_var->address == address){
797 if(current_var->address < address)
799 if(current_var->address > address)
803 mc_data_bss_ignore_variable_t var = NULL;
804 var = xbt_new0(s_mc_data_bss_ignore_variable_t, 1);
805 var->address = address;
808 if(current_var->address < address)
809 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, cursor + 1, &var);
811 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, cursor, &var);
821 void MC_ignore_stack(const char *var_name, const char *frame){
823 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
827 if(mc_stack_comparison_ignore == NULL)
828 mc_stack_comparison_ignore = xbt_dynar_new(sizeof(mc_stack_ignore_variable_t), NULL);
830 if(xbt_dynar_is_empty(mc_stack_comparison_ignore)){
832 mc_stack_ignore_variable_t var = NULL;
833 var = xbt_new0(s_mc_stack_ignore_variable_t, 1);
834 var->var_name = strdup(var_name);
835 var->frame = strdup(frame);
837 xbt_dynar_insert_at(mc_stack_comparison_ignore, 0, &var);
841 unsigned int cursor = 0;
843 int end = xbt_dynar_length(mc_stack_comparison_ignore) - 1;
844 mc_stack_ignore_variable_t current_var = NULL;
847 cursor = (start + end) / 2;
848 current_var = (mc_stack_ignore_variable_t)xbt_dynar_get_as(mc_stack_comparison_ignore, cursor, mc_stack_ignore_variable_t);
849 if(strcmp(current_var->frame, frame) == 0){
850 if(strcmp(current_var->var_name, var_name) == 0){
856 if(strcmp(current_var->var_name, var_name) < 0)
858 if(strcmp(current_var->var_name, var_name) > 0)
861 if(strcmp(current_var->frame, frame) < 0)
863 if(strcmp(current_var->frame, frame) > 0)
867 mc_stack_ignore_variable_t var = NULL;
868 var = xbt_new0(s_mc_stack_ignore_variable_t, 1);
869 var->var_name = strdup(var_name);
870 var->frame = strdup(frame);
872 if(strcmp(current_var->frame, frame) < 0)
873 xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor + 1, &var);
875 xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor, &var);
886 void MC_new_stack_area(void *stack, char *name, void* context, size_t size){
888 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
891 if(stacks_areas == NULL)
892 stacks_areas = xbt_dynar_new(sizeof(stack_region_t), NULL);
894 stack_region_t region = NULL;
895 region = xbt_new0(s_stack_region_t, 1);
896 region->address = stack;
897 region->process_name = strdup(name);
898 region->context = context;
900 xbt_dynar_push(stacks_areas, ®ion);
908 /************ DWARF ***********/
910 xbt_dict_t MC_get_location_list(const char *elf_file){
912 char *command = bprintf("objdump -Wo %s", elf_file);
914 FILE *fp = popen(command, "r");
917 perror("popen for objdump failed");
921 int debug = 0; /*Detect if the program has been compiled with -g */
923 xbt_dict_t location_list = xbt_dict_new_homogeneous(NULL);
924 char *line = NULL, *loc_expr = NULL;
928 xbt_dynar_t split = NULL;
930 while ((read = getline(&line, &n, fp)) != -1) {
932 /* Wipeout the new line character */
933 line[read - 1] = '\0';
935 xbt_str_trim(line, NULL);
940 if(strlen(line) == 0)
945 if(strncmp(line, elf_file, strlen(elf_file)) == 0)
948 if(strncmp(line, "Contents", 8) == 0)
951 if(strncmp(line, "Offset", 6) == 0){
958 XBT_INFO("Your program must be compiled with -g");
962 xbt_dynar_t loclist = xbt_dynar_new(sizeof(dw_location_entry_t), NULL);
964 xbt_str_strip_spaces(line);
965 split = xbt_str_split(line, " ");
967 while(read != -1 && strcmp("<End", (char *)xbt_dynar_get_as(split, 1, char *)) != 0){
969 dw_location_entry_t new_entry = xbt_new0(s_dw_location_entry_t, 1);
970 new_entry->lowpc = strtoul((char *)xbt_dynar_get_as(split, 1, char *), NULL, 16);
971 new_entry->highpc = strtoul((char *)xbt_dynar_get_as(split, 2, char *), NULL, 16);
974 while(cursor_remove < 3){
975 xbt_dynar_remove_at(split, 0, NULL);
979 loc_expr = xbt_str_join(split, " ");
980 xbt_str_ltrim(loc_expr, "(");
981 xbt_str_rtrim(loc_expr, ")");
982 new_entry->location = get_location(NULL, loc_expr);
984 xbt_dynar_push(loclist, &new_entry);
986 xbt_dynar_free(&split);
989 read = getline(&line, &n, fp);
991 line[read - 1] = '\0';
992 xbt_str_strip_spaces(line);
993 split = xbt_str_split(line, " ");
999 char *key = bprintf("%d", (int)strtoul((char *)xbt_dynar_get_as(split, 0, char *), NULL, 16));
1000 xbt_dict_set(location_list, key, loclist, NULL);
1002 xbt_dynar_free(&split);
1010 return location_list;
1013 static dw_frame_t get_frame_by_offset(xbt_dict_t all_variables, unsigned long int offset){
1015 xbt_dict_cursor_t cursor = NULL;
1019 xbt_dict_foreach(all_variables, cursor, name, res) {
1020 if(offset >= res->start && offset < res->end)
1028 void MC_get_local_variables(const char *elf_file, xbt_dict_t location_list, xbt_dict_t *all_variables){
1030 char *command = bprintf("objdump -Wi %s", elf_file);
1032 FILE *fp = popen(command, "r");
1035 perror("popen for objdump failed");
1037 char *line = NULL, *origin, *abstract_origin, *current_frame = NULL;
1040 int valid_variable = 1;
1041 char *node_type = NULL, *location_type = NULL, *variable_name = NULL, *loc_expr = NULL;
1042 xbt_dynar_t split = NULL, split2 = NULL;
1044 xbt_dict_t variables_origin = xbt_dict_new_homogeneous(NULL);
1045 xbt_dict_t subprograms_origin = xbt_dict_new_homogeneous(NULL);
1046 char *subprogram_name = NULL, *subprogram_start = NULL, *subprogram_end = NULL;
1047 int new_frame = 0, new_variable = 0;
1048 dw_frame_t variable_frame, subroutine_frame = NULL;
1050 read = getline(&line, &n, fp);
1052 while (read != -1) {
1055 read = getline(&line, &n, fp);
1059 /* Wipeout the new line character */
1060 line[read - 1] = '\0';
1062 if(strlen(line) == 0){
1063 read = getline(&line, &n, fp);
1067 xbt_str_ltrim(line, NULL);
1068 xbt_str_strip_spaces(line);
1071 read = getline(&line, &n, fp);
1075 xbt_dynar_free(&split);
1076 split = xbt_str_split(line, " ");
1079 node_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1081 if(strcmp(node_type, "(DW_TAG_subprogram)") == 0){ /* New frame */
1083 dw_frame_t frame = NULL;
1085 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1086 subprogram_start = strdup(strtok(NULL, "<"));
1087 xbt_str_rtrim(subprogram_start, ">:");
1089 read = getline(&line, &n, fp);
1094 read = getline(&line, &n, fp);
1098 /* Wipeout the new line character */
1099 line[read - 1] = '\0';
1101 if(strlen(line) == 0){
1102 read = getline(&line, &n, fp);
1106 xbt_dynar_free(&split);
1107 xbt_str_rtrim(line, NULL);
1108 xbt_str_strip_spaces(line);
1109 split = xbt_str_split(line, " ");
1111 node_type = xbt_dynar_get_as(split, 1, char *);
1113 if(strncmp(node_type, "DW_AT_", 6) != 0)
1116 if(strcmp(node_type, "DW_AT_sibling") == 0){
1118 subprogram_end = strdup(xbt_dynar_get_as(split, 3, char*));
1119 xbt_str_ltrim(subprogram_end, "<0x");
1120 xbt_str_rtrim(subprogram_end, ">");
1122 }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){ /* Frame already in dict */
1125 abstract_origin = strdup(xbt_dynar_get_as(split, 2, char*));
1126 xbt_str_ltrim(abstract_origin, "<0x");
1127 xbt_str_rtrim(abstract_origin, ">");
1128 subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, abstract_origin);
1129 frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
1131 }else if(strcmp(node_type, "DW_AT_name") == 0){
1134 free(current_frame);
1135 frame = xbt_new0(s_dw_frame_t, 1);
1136 frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1137 frame->variables = xbt_dict_new_homogeneous(NULL);
1138 frame->frame_base = xbt_new0(s_dw_location_t, 1);
1139 current_frame = strdup(frame->name);
1141 xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
1143 }else if(strcmp(node_type, "DW_AT_frame_base") == 0){
1145 location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1147 if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
1149 frame->frame_base = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
1153 xbt_str_strip_spaces(line);
1154 split2 = xbt_str_split(line, "(");
1155 xbt_dynar_remove_at(split2, 0, NULL);
1156 loc_expr = xbt_str_join(split2, " ");
1157 xbt_str_rtrim(loc_expr, ")");
1158 frame->frame_base = get_location(NULL, loc_expr);
1159 xbt_dynar_free(&split2);
1163 }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
1166 frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1168 }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
1171 frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1173 }else if(strcmp(node_type, "DW_AT_MIPS_linkage_name:") == 0){
1176 free(current_frame);
1177 frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1178 current_frame = strdup(frame->name);
1179 xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
1183 read = getline(&line, &n, fp);
1188 frame->start = strtoul(subprogram_start, NULL, 16);
1189 if(subprogram_end != NULL)
1190 frame->end = strtoul(subprogram_end, NULL, 16);
1191 xbt_dict_set(*all_variables, frame->name, frame, NULL);
1194 free(subprogram_start);
1195 if(subprogram_end != NULL){
1196 free(subprogram_end);
1197 subprogram_end = NULL;
1201 }else if(strcmp(node_type, "(DW_TAG_variable)") == 0){ /* New variable */
1203 dw_local_variable_t var = NULL;
1205 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1206 origin = strdup(strtok(NULL, "<"));
1207 xbt_str_rtrim(origin, ">:");
1209 read = getline(&line, &n, fp);
1214 read = getline(&line, &n, fp);
1218 /* Wipeout the new line character */
1219 line[read - 1] = '\0';
1221 if(strlen(line) == 0){
1222 read = getline(&line, &n, fp);
1226 xbt_dynar_free(&split);
1227 xbt_str_rtrim(line, NULL);
1228 xbt_str_strip_spaces(line);
1229 split = xbt_str_split(line, " ");
1231 node_type = xbt_dynar_get_as(split, 1, char *);
1233 if(strncmp(node_type, "DW_AT_", 6) != 0)
1236 if(strcmp(node_type, "DW_AT_name") == 0){
1239 var = xbt_new0(s_dw_local_variable_t, 1);
1240 var->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1242 xbt_dict_set(variables_origin, origin, var->name, NULL);
1244 }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
1247 abstract_origin = xbt_dynar_get_as(split, 2, char *);
1248 xbt_str_ltrim(abstract_origin, "<0x");
1249 xbt_str_rtrim(abstract_origin, ">");
1251 variable_name = (char *)xbt_dict_get_or_null(variables_origin, abstract_origin);
1252 variable_frame = get_frame_by_offset(*all_variables, strtoul(abstract_origin, NULL, 16));
1253 var = xbt_dict_get_or_null(variable_frame->variables, variable_name);
1255 }else if(strcmp(node_type, "DW_AT_location") == 0){
1257 if(valid_variable == 1 && var != NULL){
1259 var->location = xbt_new0(s_dw_location_t, 1);
1261 location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1263 if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
1265 var->location = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
1269 xbt_str_strip_spaces(line);
1270 split2 = xbt_str_split(line, "(");
1271 xbt_dynar_remove_at(split2, 0, NULL);
1272 loc_expr = xbt_str_join(split2, " ");
1273 xbt_str_rtrim(loc_expr, ")");
1274 var->location = get_location(NULL, loc_expr);
1275 xbt_dynar_free(&split2);
1281 }else if(strcmp(node_type, "DW_AT_external") == 0){
1287 read = getline(&line, &n, fp);
1291 if(new_variable == 1 && valid_variable == 1){
1293 variable_frame = xbt_dict_get_or_null(*all_variables, current_frame);
1294 xbt_dict_set(variable_frame->variables, var->name, var, NULL);
1300 }else if(strcmp(node_type, "(DW_TAG_inlined_subroutine)") == 0){
1302 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1303 origin = strdup(strtok(NULL, "<"));
1304 xbt_str_rtrim(origin, ">:");
1306 read = getline(&line, &n, fp);
1310 /* Wipeout the new line character */
1311 line[read - 1] = '\0';
1314 read = getline(&line, &n, fp);
1318 if(strlen(line) == 0){
1319 read = getline(&line, &n, fp);
1323 xbt_dynar_free(&split);
1324 xbt_str_rtrim(line, NULL);
1325 xbt_str_strip_spaces(line);
1326 split = xbt_str_split(line, " ");
1328 if(strncmp(xbt_dynar_get_as(split, 1, char *), "DW_AT_", 6) != 0)
1331 node_type = xbt_dynar_get_as(split, 1, char *);
1333 if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
1335 origin = xbt_dynar_get_as(split, 2, char *);
1336 xbt_str_ltrim(origin, "<0x");
1337 xbt_str_rtrim(origin, ">");
1339 subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, origin);
1340 subroutine_frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
1342 }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
1344 subroutine_frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1346 }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
1348 subroutine_frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1351 read = getline(&line, &n, fp);
1357 read = getline(&line, &n, fp);
1363 xbt_dynar_free(&split);
1370 static dw_location_t get_location(xbt_dict_t location_list, char *expr){
1372 dw_location_t loc = xbt_new0(s_dw_location_t, 1);
1374 if(location_list != NULL){
1376 char *key = bprintf("%d", (int)strtoul(expr, NULL, 16));
1377 loc->type = e_dw_loclist;
1378 loc->location.loclist = (xbt_dynar_t)xbt_dict_get_or_null(location_list, key);
1380 XBT_INFO("Key not found in loclist");
1386 char *tok = NULL, *tok2 = NULL;
1388 xbt_dynar_t tokens1 = xbt_str_split(expr, ";");
1389 xbt_dynar_t tokens2;
1391 loc->type = e_dw_compose;
1392 loc->location.compose = xbt_dynar_new(sizeof(dw_location_t), NULL);
1394 while(cursor < xbt_dynar_length(tokens1)){
1396 tok = xbt_dynar_get_as(tokens1, cursor, char*);
1397 tokens2 = xbt_str_split(tok, " ");
1398 tok2 = xbt_dynar_get_as(tokens2, 0, char*);
1400 if(strncmp(tok2, "DW_OP_reg", 9) == 0){
1401 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1402 new_element->type = e_dw_register;
1403 new_element->location.reg = atoi(strtok(tok2, "DW_OP_reg"));
1404 xbt_dynar_push(loc->location.compose, &new_element);
1405 }else if(strcmp(tok2, "DW_OP_fbreg:") == 0){
1406 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1407 new_element->type = e_dw_fbregister_op;
1408 new_element->location.fbreg_op = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1409 xbt_dynar_push(loc->location.compose, &new_element);
1410 }else if(strncmp(tok2, "DW_OP_breg", 10) == 0){
1411 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1412 new_element->type = e_dw_bregister_op;
1413 new_element->location.breg_op.reg = atoi(strtok(tok2, "DW_OP_breg"));
1414 new_element->location.breg_op.offset = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1415 xbt_dynar_push(loc->location.compose, &new_element);
1416 }else if(strncmp(tok2, "DW_OP_lit", 9) == 0){
1417 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1418 new_element->type = e_dw_lit;
1419 new_element->location.lit = atoi(strtok(tok2, "DW_OP_lit"));
1420 xbt_dynar_push(loc->location.compose, &new_element);
1421 }else if(strcmp(tok2, "DW_OP_piece:") == 0){
1422 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1423 new_element->type = e_dw_piece;
1424 new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1425 /*if(strlen(xbt_dynar_get_as(tokens2, 1, char*)) > 1)
1426 new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1428 new_element->location.piece = xbt_dynar_get_as(tokens2, 1, char*)[0] - '0';*/
1429 xbt_dynar_push(loc->location.compose, &new_element);
1430 }else if(strcmp(tok2, "DW_OP_plus_uconst:") == 0){
1431 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1432 new_element->type = e_dw_plus_uconst;
1433 new_element->location.plus_uconst = atoi(xbt_dynar_get_as(tokens2, 1, char *));
1434 xbt_dynar_push(loc->location.compose, &new_element);
1435 }else if(strcmp(tok, "DW_OP_abs") == 0 ||
1436 strcmp(tok, "DW_OP_and") == 0 ||
1437 strcmp(tok, "DW_OP_div") == 0 ||
1438 strcmp(tok, "DW_OP_minus") == 0 ||
1439 strcmp(tok, "DW_OP_mod") == 0 ||
1440 strcmp(tok, "DW_OP_mul") == 0 ||
1441 strcmp(tok, "DW_OP_neg") == 0 ||
1442 strcmp(tok, "DW_OP_not") == 0 ||
1443 strcmp(tok, "DW_OP_or") == 0 ||
1444 strcmp(tok, "DW_OP_plus") == 0){
1445 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1446 new_element->type = e_dw_arithmetic;
1447 new_element->location.arithmetic = strdup(strtok(tok2, "DW_OP_"));
1448 xbt_dynar_push(loc->location.compose, &new_element);
1449 }else if(strcmp(tok, "DW_OP_stack_value") == 0){
1450 }else if(strcmp(tok2, "DW_OP_deref_size:") == 0){
1451 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1452 new_element->type = e_dw_deref;
1453 new_element->location.deref_size = (unsigned int short) atoi(xbt_dynar_get_as(tokens2, 1, char*));
1454 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1455 new_element->location.deref_size = atoi(xbt_dynar_get_as(tokens, cursor, char*));
1457 new_element->location.deref_size = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
1458 xbt_dynar_push(loc->location.compose, &new_element);
1459 }else if(strcmp(tok, "DW_OP_deref") == 0){
1460 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1461 new_element->type = e_dw_deref;
1462 new_element->location.deref_size = sizeof(void *);
1463 xbt_dynar_push(loc->location.compose, &new_element);
1464 }else if(strcmp(tok2, "DW_OP_constu:") == 0){
1465 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1466 new_element->type = e_dw_uconstant;
1467 new_element->location.uconstant.bytes = 1;
1468 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1469 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1470 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens, cursor, char*)));
1472 new_element->location.uconstant.value = (unsigned long int)(xbt_dynar_get_as(tokens, cursor, char*)[0] - '0');*/
1473 xbt_dynar_push(loc->location.compose, &new_element);
1474 }else if(strcmp(tok2, "DW_OP_consts:") == 0){
1475 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1476 new_element->type = e_dw_sconstant;
1477 new_element->location.sconstant.bytes = 1;
1478 new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1479 xbt_dynar_push(loc->location.compose, &new_element);
1480 }else if(strcmp(tok2, "DW_OP_const1u:") == 0 ||
1481 strcmp(tok2, "DW_OP_const2u:") == 0 ||
1482 strcmp(tok2, "DW_OP_const4u:") == 0 ||
1483 strcmp(tok2, "DW_OP_const8u:") == 0){
1484 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1485 new_element->type = e_dw_uconstant;
1486 new_element->location.uconstant.bytes = tok2[11] - '0';
1487 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1488 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1489 new_element->location.constant.value = atoi(xbt_dynar_get_as(tokens, cursor, char*));
1491 new_element->location.constant.value = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
1492 xbt_dynar_push(loc->location.compose, &new_element);
1493 }else if(strcmp(tok, "DW_OP_const1s") == 0 ||
1494 strcmp(tok, "DW_OP_const2s") == 0 ||
1495 strcmp(tok, "DW_OP_const4s") == 0 ||
1496 strcmp(tok, "DW_OP_const8s") == 0){
1497 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1498 new_element->type = e_dw_sconstant;
1499 new_element->location.sconstant.bytes = tok2[11] - '0';
1500 new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1501 xbt_dynar_push(loc->location.compose, &new_element);
1503 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1504 new_element->type = e_dw_unsupported;
1505 xbt_dynar_push(loc->location.compose, &new_element);
1509 xbt_dynar_free(&tokens2);
1513 xbt_dynar_free(&tokens1);
1522 void print_local_variables(xbt_dict_t list){
1524 dw_location_entry_t entry;
1525 dw_location_t location_entry;
1526 unsigned int cursor3 = 0, cursor4 = 0;
1527 xbt_dict_cursor_t cursor = 0, cursor2 = 0;
1529 char *frame_name, *variable_name;
1530 dw_frame_t current_frame;
1531 dw_local_variable_t current_variable;
1533 xbt_dict_foreach(list, cursor, frame_name, current_frame){
1534 fprintf(stderr, "Frame name : %s\n", current_frame->name);
1535 fprintf(stderr, "Location type : %d\n", current_frame->frame_base->type);
1536 xbt_dict_foreach((xbt_dict_t)current_frame->variables, cursor2, variable_name, current_variable){
1537 fprintf(stderr, "Name : %s\n", current_variable->name);
1538 if(current_variable->location == NULL)
1540 fprintf(stderr, "Location type : %d\n", current_variable->location->type);
1541 switch(current_variable->location->type){
1543 xbt_dynar_foreach(current_variable->location->location.loclist, cursor3, entry){
1544 fprintf(stderr, "Lowpc : %lx, Highpc : %lx,", entry->lowpc, entry->highpc);
1545 switch(entry->location->type){
1546 case e_dw_register :
1547 fprintf(stderr, " Location : in register %d\n", entry->location->location.reg);
1549 case e_dw_bregister_op:
1550 fprintf(stderr, " Location : Add %d to the value in register %d\n", entry->location->location.breg_op.offset, entry->location->location.breg_op.reg);
1553 fprintf(stderr, "Value already kwnown : %d\n", entry->location->location.lit);
1555 case e_dw_fbregister_op:
1556 fprintf(stderr, " Location : %d bytes from logical frame pointer\n", entry->location->location.fbreg_op);
1559 fprintf(stderr, " Location :\n");
1560 xbt_dynar_foreach(entry->location->location.compose, cursor4, location_entry){
1561 switch(location_entry->type){
1562 case e_dw_register :
1563 fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
1565 case e_dw_bregister_op:
1566 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);
1569 fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
1571 case e_dw_fbregister_op:
1572 fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
1575 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);
1577 case e_dw_arithmetic :
1578 fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
1581 fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
1583 case e_dw_uconstant :
1584 fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
1586 case e_dw_sconstant :
1587 fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
1590 fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
1596 fprintf(stderr, "Location type not supported\n");
1603 fprintf(stderr, "Location :\n");
1604 xbt_dynar_foreach(current_variable->location->location.compose, cursor4, location_entry){
1605 switch(location_entry->type){
1606 case e_dw_register :
1607 fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
1609 case e_dw_bregister_op:
1610 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);
1613 fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
1615 case e_dw_fbregister_op:
1616 fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
1619 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);
1621 case e_dw_arithmetic :
1622 fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
1625 fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
1627 case e_dw_uconstant :
1628 fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
1630 case e_dw_sconstant :
1631 fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
1634 fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
1640 fprintf(stderr, "Location type not supported\n");
1648 static size_t data_bss_ignore_size(void *address){
1649 unsigned int cursor = 0;
1651 int end = xbt_dynar_length(mc_data_bss_comparison_ignore) - 1;
1652 mc_data_bss_ignore_variable_t var;
1654 while(start <= end){
1655 cursor = (start + end) / 2;
1656 var = (mc_data_bss_ignore_variable_t)xbt_dynar_get_as(mc_data_bss_comparison_ignore, cursor, mc_data_bss_ignore_variable_t);
1657 if(var->address == address)
1659 if(var->address < address){
1660 if((void *)((char *)var->address + var->size) > address)
1661 return (char *)var->address + var->size - (char*)address;
1665 if(var->address > address)
1673 static void MC_get_global_variables(char *elf_file){
1677 char *command = bprintf("objdump -t -j .data -j .bss %s", elf_file);
1679 fp = popen(command, "r");
1682 perror("popen failed");
1686 if(mc_global_variables == NULL)
1687 mc_global_variables = xbt_dynar_new(sizeof(global_variable_t), global_variable_free_voidp);
1693 xbt_dynar_t line_tokens = NULL;
1694 unsigned long offset;
1696 int type = strcmp(elf_file, xbt_binary_name); /* 0 = binary, other = libsimgrid */
1698 while ((read = getline(&line, &n, fp)) != -1){
1703 /* Wipeout the new line character */
1704 line[read - 1] = '\0';
1706 xbt_str_strip_spaces(line);
1707 xbt_str_ltrim(line, NULL);
1709 line_tokens = xbt_str_split(line, NULL);
1711 if(xbt_dynar_length(line_tokens) <= 4 || strcmp(xbt_dynar_get_as(line_tokens, 0, char *), "SYMBOL") == 0)
1714 if((strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "__gcov", 6) == 0)
1715 || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "gcov", 4) == 0)
1716 || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), ".data") == 0)
1717 || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), ".bss") == 0)
1718 || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "stderr", 6) == 0)
1719 || ((size_t)strtoul(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 2, char*), NULL, 16) == 0))
1722 global_variable_t var = xbt_new0(s_global_variable_t, 1);
1725 var->address = (void *)strtoul(xbt_dynar_get_as(line_tokens, 0, char*), NULL, 16);
1727 offset = strtoul(xbt_dynar_get_as(line_tokens, 0, char*), NULL, 16);
1728 var->address = (char *)start_text_libsimgrid+offset;
1731 var->size = (size_t)strtoul(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 2, char*), NULL, 16);
1732 var->name = strdup(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*));
1734 if(data_bss_ignore_size(var->address) > 0)
1735 global_variable_free(var);
1737 xbt_dynar_push(mc_global_variables, &var);
1739 xbt_dynar_free(&line_tokens);
1749 void global_variable_free(global_variable_t v){
1754 void global_variable_free_voidp(void *v){
1755 global_variable_free((global_variable_t) * (void **) v);