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){
223 MC_init_memory_map_info();
224 get_libsimgrid_plt_section();
225 get_binary_plt_section();
231 /* Save the initial state */
232 initial_state_safety = xbt_new0(s_mc_global_t, 1);
233 initial_state_safety->snapshot = MC_take_snapshot();
244 void MC_modelcheck_liveness(){
246 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
252 /* Initialize statistics */
253 mc_stats_pair = xbt_new0(s_mc_stats_pair_t, 1);
255 /* Create exploration stack */
256 mc_stack_liveness = xbt_fifo_new();
258 initial_state_liveness = xbt_new0(s_mc_global_t, 1);
265 MC_print_statistics_pairs(mc_stats_pair);
276 MC_print_statistics(mc_stats);
282 int MC_random(int min, int max)
284 /*FIXME: return mc_current_state->executed_transition->random.value;*/
289 * \brief Schedules all the process that are ready to run
291 void MC_wait_for_requests(void)
293 smx_process_t process;
297 while (!xbt_dynar_is_empty(simix_global->process_to_run)) {
298 SIMIX_process_runall();
299 xbt_dynar_foreach(simix_global->process_that_ran, iter, process) {
300 req = &process->simcall;
301 if (req->call != SIMCALL_NONE && !MC_request_is_visible(req))
302 SIMIX_simcall_pre(req, 0);
307 int MC_deadlock_check()
309 int deadlock = FALSE;
310 smx_process_t process;
311 if(xbt_swag_size(simix_global->process_list)){
313 xbt_swag_foreach(process, simix_global->process_list){
314 if(process->simcall.call != SIMCALL_NONE
315 && MC_request_is_enabled(&process->simcall)){
325 * \brief Re-executes from the state at position start all the transitions indicated by
326 * a given model-checker stack.
327 * \param stack The stack with the transitions to execute.
328 * \param start Start index to begin the re-execution.
330 void MC_replay(xbt_fifo_t stack, int start)
332 int raw_mem = (mmalloc_get_current_heap() == raw_heap);
336 smx_simcall_t req = NULL, saved_req = NULL;
337 xbt_fifo_item_t item, start_item;
340 XBT_DEBUG("**** Begin Replay ****");
343 /* Restore the initial state */
344 MC_restore_snapshot(initial_state_safety->snapshot);
345 /* At the moment of taking the snapshot the raw heap was set, so restoring
346 * it will set it back again, we have to unset it to continue */
350 start_item = xbt_fifo_get_last_item(stack);
353 start_item = xbt_fifo_get_prev_item(start_item);
358 /* Traverse the stack from the state at position start and re-execute the transitions */
359 for (item = start_item;
360 item != xbt_fifo_get_first_item(stack);
361 item = xbt_fifo_get_prev_item(item)) {
363 state = (mc_state_t) xbt_fifo_get_item_content(item);
364 saved_req = MC_state_get_executed_request(state, &value);
367 /* because we got a copy of the executed request, we have to fetch the
368 real one, pointed by the request field of the issuer process */
369 req = &saved_req->issuer->simcall;
371 /* Debug information */
372 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
373 req_str = MC_request_to_string(req, value);
374 XBT_DEBUG("Replay: %s (%p)", req_str, state);
379 SIMIX_simcall_pre(req, value);
380 MC_wait_for_requests();
382 /* Update statistics */
383 mc_stats->visited_states++;
384 mc_stats->executed_transitions++;
386 XBT_DEBUG("**** End Replay ****");
396 void MC_replay_liveness(xbt_fifo_t stack, int all_stack)
399 initial_state_liveness->raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
403 smx_simcall_t req = NULL, saved_req = NULL;
404 xbt_fifo_item_t item;
406 mc_pair_stateless_t pair;
409 XBT_DEBUG("**** Begin Replay ****");
411 /* Restore the initial state */
412 MC_restore_snapshot(initial_state_liveness->snapshot);
414 /* At the moment of taking the snapshot the raw heap was set, so restoring
415 * it will set it back again, we have to unset it to continue */
416 if(!initial_state_liveness->raw_mem_set)
421 item = xbt_fifo_get_last_item(stack);
423 while(depth <= xbt_fifo_size(stack)){
425 pair = (mc_pair_stateless_t) xbt_fifo_get_item_content(item);
426 state = (mc_state_t) pair->graph_state;
428 if(pair->requests > 0){
430 saved_req = MC_state_get_executed_request(state, &value);
431 //XBT_DEBUG("SavedReq->call %u", saved_req->call);
433 if(saved_req != NULL){
434 /* because we got a copy of the executed request, we have to fetch the
435 real one, pointed by the request field of the issuer process */
436 req = &saved_req->issuer->simcall;
437 //XBT_DEBUG("Req->call %u", req->call);
439 /* Debug information */
440 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
441 req_str = MC_request_to_string(req, value);
442 XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
448 SIMIX_simcall_pre(req, value);
449 MC_wait_for_requests();
454 /* Update statistics */
455 mc_stats_pair->visited_pairs++;
457 item = xbt_fifo_get_prev_item(item);
462 /* Traverse the stack from the initial state and re-execute the transitions */
463 for (item = xbt_fifo_get_last_item(stack);
464 item != xbt_fifo_get_first_item(stack);
465 item = xbt_fifo_get_prev_item(item)) {
467 pair = (mc_pair_stateless_t) xbt_fifo_get_item_content(item);
468 state = (mc_state_t) pair->graph_state;
470 if(pair->requests > 0){
472 saved_req = MC_state_get_executed_request(state, &value);
473 //XBT_DEBUG("SavedReq->call %u", saved_req->call);
475 if(saved_req != NULL){
476 /* because we got a copy of the executed request, we have to fetch the
477 real one, pointed by the request field of the issuer process */
478 req = &saved_req->issuer->simcall;
479 //XBT_DEBUG("Req->call %u", req->call);
481 /* Debug information */
482 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
483 req_str = MC_request_to_string(req, value);
484 XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
490 SIMIX_simcall_pre(req, value);
491 MC_wait_for_requests();
496 /* Update statistics */
497 mc_stats_pair->visited_pairs++;
501 XBT_DEBUG("**** End Replay ****");
503 if(initial_state_liveness->raw_mem_set)
511 * \brief Dumps the contents of a model-checker's stack and shows the actual
513 * \param stack The stack to dump
515 void MC_dump_stack_safety(xbt_fifo_t stack)
518 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
520 MC_show_stack_safety(stack);
522 if(!_surf_mc_checkpoint){
527 while ((state = (mc_state_t) xbt_fifo_pop(stack)) != NULL)
528 MC_state_delete(state);
541 void MC_show_stack_safety(xbt_fifo_t stack)
545 xbt_fifo_item_t item;
547 char *req_str = NULL;
549 for (item = xbt_fifo_get_last_item(stack);
550 (item ? (state = (mc_state_t) (xbt_fifo_get_item_content(item)))
551 : (NULL)); item = xbt_fifo_get_prev_item(item)) {
552 req = MC_state_get_executed_request(state, &value);
554 req_str = MC_request_to_string(req, value);
555 XBT_INFO("%s", req_str);
561 void MC_show_deadlock(smx_simcall_t req)
563 /*char *req_str = NULL;*/
564 XBT_INFO("**************************");
565 XBT_INFO("*** DEAD-LOCK DETECTED ***");
566 XBT_INFO("**************************");
567 XBT_INFO("Locked request:");
568 /*req_str = MC_request_to_string(req);
569 XBT_INFO("%s", req_str);
571 XBT_INFO("Counter-example execution trace:");
572 MC_dump_stack_safety(mc_stack_safety);
576 void MC_show_stack_liveness(xbt_fifo_t stack){
578 mc_pair_stateless_t pair;
579 xbt_fifo_item_t item;
581 char *req_str = NULL;
583 for (item = xbt_fifo_get_last_item(stack);
584 (item ? (pair = (mc_pair_stateless_t) (xbt_fifo_get_item_content(item)))
585 : (NULL)); item = xbt_fifo_get_prev_item(item)) {
586 req = MC_state_get_executed_request(pair->graph_state, &value);
588 if(pair->requests>0){
589 req_str = MC_request_to_string(req, value);
590 XBT_INFO("%s", req_str);
593 XBT_INFO("End of system requests but evolution in Büchi automaton");
599 void MC_dump_stack_liveness(xbt_fifo_t stack){
601 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
603 mc_pair_stateless_t pair;
606 while ((pair = (mc_pair_stateless_t) xbt_fifo_pop(stack)) != NULL)
607 pair_stateless_free(pair);
616 void MC_print_statistics(mc_stats_t stats)
618 //XBT_INFO("State space size ~= %lu", stats->state_size);
619 XBT_INFO("Expanded states = %lu", stats->expanded_states);
620 XBT_INFO("Visited states = %lu", stats->visited_states);
621 XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
622 XBT_INFO("Expanded / Visited = %lf",
623 (double) stats->visited_states / stats->expanded_states);
624 /*XBT_INFO("Exploration coverage = %lf",
625 (double)stats->expanded_states / stats->state_size); */
628 void MC_print_statistics_pairs(mc_stats_pair_t stats)
630 XBT_INFO("Expanded pairs = %lu", stats->expanded_pairs);
631 XBT_INFO("Visited pairs = %lu", stats->visited_pairs);
632 //XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
633 XBT_INFO("Expanded / Visited = %lf",
634 (double) stats->visited_pairs / stats->expanded_pairs);
636 if(mmalloc_get_current_heap() == raw_heap)
640 void MC_assert(int prop)
642 if (MC_is_active() && !prop){
643 XBT_INFO("**************************");
644 XBT_INFO("*** PROPERTY NOT VALID ***");
645 XBT_INFO("**************************");
646 XBT_INFO("Counter-example execution trace:");
647 MC_dump_stack_safety(mc_stack_safety);
648 MC_print_statistics(mc_stats);
653 static void MC_assert_pair(int prop){
654 if (MC_is_active() && !prop) {
655 XBT_INFO("**************************");
656 XBT_INFO("*** PROPERTY NOT VALID ***");
657 XBT_INFO("**************************");
658 //XBT_INFO("Counter-example execution trace:");
659 MC_show_stack_liveness(mc_stack_liveness);
660 //MC_dump_snapshot_stack(mc_snapshot_stack);
661 MC_print_statistics_pairs(mc_stats_pair);
666 void MC_process_clock_add(smx_process_t process, double amount)
668 mc_time[process->pid] += amount;
671 double MC_process_clock_get(smx_process_t process)
675 return mc_time[process->pid];
683 void MC_automaton_load(const char *file){
685 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
689 if (_mc_property_automaton == NULL)
690 _mc_property_automaton = xbt_automaton_new();
692 xbt_automaton_load(_mc_property_automaton,file);
701 void MC_automaton_new_propositional_symbol(const char* id, void* fct) {
703 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
707 if (_mc_property_automaton == NULL)
708 _mc_property_automaton = xbt_automaton_new();
710 xbt_new_propositional_symbol(_mc_property_automaton,id,fct);
719 /************ MC_ignore ***********/
721 void MC_ignore_heap(void *address, size_t size){
723 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
727 if(mc_heap_comparison_ignore == NULL)
728 mc_heap_comparison_ignore = xbt_dynar_new(sizeof(mc_heap_ignore_region_t), NULL);
730 mc_heap_ignore_region_t region = NULL;
731 region = xbt_new0(s_mc_heap_ignore_region_t, 1);
732 region->address = address;
735 if((address >= std_heap) && (address <= (void*)((char *)std_heap + STD_HEAP_SIZE))){
737 region->block = ((char*)address - (char*)((xbt_mheap_t)std_heap)->heapbase) / BLOCKSIZE + 1;
739 if(((xbt_mheap_t)std_heap)->heapinfo[region->block].type == 0){
740 region->fragment = -1;
742 region->fragment = ((uintptr_t) (ADDR2UINT (address) % (BLOCKSIZE))) >> ((xbt_mheap_t)std_heap)->heapinfo[region->block].type;
747 unsigned int cursor = 0;
748 mc_heap_ignore_region_t current_region;
749 xbt_dynar_foreach(mc_heap_comparison_ignore, cursor, current_region){
750 if(current_region->address > address)
754 xbt_dynar_insert_at(mc_heap_comparison_ignore, cursor, ®ion);
762 void MC_ignore_data_bss(void *address, size_t size){
764 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
768 if(mc_data_bss_comparison_ignore == NULL)
769 mc_data_bss_comparison_ignore = xbt_dynar_new(sizeof(mc_data_bss_ignore_variable_t), NULL);
771 if(xbt_dynar_is_empty(mc_data_bss_comparison_ignore)){
773 mc_data_bss_ignore_variable_t var = NULL;
774 var = xbt_new0(s_mc_data_bss_ignore_variable_t, 1);
775 var->address = address;
778 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, 0, &var);
782 unsigned int cursor = 0;
784 int end = xbt_dynar_length(mc_data_bss_comparison_ignore) - 1;
785 mc_data_bss_ignore_variable_t current_var = NULL;
788 cursor = (start + end) / 2;
789 current_var = (mc_data_bss_ignore_variable_t)xbt_dynar_get_as(mc_data_bss_comparison_ignore, cursor, mc_data_bss_ignore_variable_t);
790 if(current_var->address == address){
796 if(current_var->address < address)
798 if(current_var->address > address)
802 mc_data_bss_ignore_variable_t var = NULL;
803 var = xbt_new0(s_mc_data_bss_ignore_variable_t, 1);
804 var->address = address;
807 if(current_var->address < address)
808 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, cursor + 1, &var);
810 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, cursor, &var);
820 void MC_ignore_stack(const char *var_name, const char *frame){
822 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
826 if(mc_stack_comparison_ignore == NULL)
827 mc_stack_comparison_ignore = xbt_dynar_new(sizeof(mc_stack_ignore_variable_t), NULL);
829 if(xbt_dynar_is_empty(mc_stack_comparison_ignore)){
831 mc_stack_ignore_variable_t var = NULL;
832 var = xbt_new0(s_mc_stack_ignore_variable_t, 1);
833 var->var_name = strdup(var_name);
834 var->frame = strdup(frame);
836 xbt_dynar_insert_at(mc_stack_comparison_ignore, 0, &var);
840 unsigned int cursor = 0;
842 int end = xbt_dynar_length(mc_stack_comparison_ignore) - 1;
843 mc_stack_ignore_variable_t current_var = NULL;
846 cursor = (start + end) / 2;
847 current_var = (mc_stack_ignore_variable_t)xbt_dynar_get_as(mc_stack_comparison_ignore, cursor, mc_stack_ignore_variable_t);
848 if(strcmp(current_var->frame, frame) == 0){
849 if(strcmp(current_var->var_name, var_name) == 0){
855 if(strcmp(current_var->var_name, var_name) < 0)
857 if(strcmp(current_var->var_name, var_name) > 0)
860 if(strcmp(current_var->frame, frame) < 0)
862 if(strcmp(current_var->frame, frame) > 0)
866 mc_stack_ignore_variable_t var = NULL;
867 var = xbt_new0(s_mc_stack_ignore_variable_t, 1);
868 var->var_name = strdup(var_name);
869 var->frame = strdup(frame);
871 if(strcmp(current_var->frame, frame) < 0)
872 xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor + 1, &var);
874 xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor, &var);
885 void MC_new_stack_area(void *stack, char *name, void* context, size_t size){
887 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
890 if(stacks_areas == NULL)
891 stacks_areas = xbt_dynar_new(sizeof(stack_region_t), NULL);
893 stack_region_t region = NULL;
894 region = xbt_new0(s_stack_region_t, 1);
895 region->address = stack;
896 region->process_name = strdup(name);
897 region->context = context;
899 xbt_dynar_push(stacks_areas, ®ion);
907 /************ DWARF ***********/
909 xbt_dict_t MC_get_location_list(const char *elf_file){
911 char *command = bprintf("objdump -Wo %s", elf_file);
913 FILE *fp = popen(command, "r");
916 perror("popen for objdump failed");
920 int debug = 0; /*Detect if the program has been compiled with -g */
922 xbt_dict_t location_list = xbt_dict_new_homogeneous(NULL);
923 char *line = NULL, *loc_expr = NULL;
927 xbt_dynar_t split = NULL;
929 while ((read = getline(&line, &n, fp)) != -1) {
931 /* Wipeout the new line character */
932 line[read - 1] = '\0';
934 xbt_str_trim(line, NULL);
939 if(strlen(line) == 0)
944 if(strncmp(line, elf_file, strlen(elf_file)) == 0)
947 if(strncmp(line, "Contents", 8) == 0)
950 if(strncmp(line, "Offset", 6) == 0){
957 XBT_INFO("Your program must be compiled with -g");
961 xbt_dynar_t loclist = xbt_dynar_new(sizeof(dw_location_entry_t), NULL);
963 xbt_str_strip_spaces(line);
964 split = xbt_str_split(line, " ");
966 while(read != -1 && strcmp("<End", (char *)xbt_dynar_get_as(split, 1, char *)) != 0){
968 dw_location_entry_t new_entry = xbt_new0(s_dw_location_entry_t, 1);
969 new_entry->lowpc = strtoul((char *)xbt_dynar_get_as(split, 1, char *), NULL, 16);
970 new_entry->highpc = strtoul((char *)xbt_dynar_get_as(split, 2, char *), NULL, 16);
973 while(cursor_remove < 3){
974 xbt_dynar_remove_at(split, 0, NULL);
978 loc_expr = xbt_str_join(split, " ");
979 xbt_str_ltrim(loc_expr, "(");
980 xbt_str_rtrim(loc_expr, ")");
981 new_entry->location = get_location(NULL, loc_expr);
983 xbt_dynar_push(loclist, &new_entry);
985 xbt_dynar_free(&split);
988 read = getline(&line, &n, fp);
990 line[read - 1] = '\0';
991 xbt_str_strip_spaces(line);
992 split = xbt_str_split(line, " ");
998 char *key = bprintf("%d", (int)strtoul((char *)xbt_dynar_get_as(split, 0, char *), NULL, 16));
999 xbt_dict_set(location_list, key, loclist, NULL);
1001 xbt_dynar_free(&split);
1009 return location_list;
1012 char *get_libsimgrid_path(){
1014 char *command = bprintf("ldd %s", xbt_binary_name);
1016 FILE *fp = popen(command, "r");
1019 perror("popen for ldd failed");
1028 while((read = getline(&line, &n, fp)) != -1){
1033 /* Wipeout the new line character */
1034 line[read - 1] = '\0';
1036 xbt_str_strip_spaces(line);
1037 xbt_str_ltrim(line, NULL);
1038 split = xbt_str_split(line, " ");
1040 if(strncmp((char *)xbt_dynar_get_as(split, 0, char *), "libsimgrid.so", 13) == 0){
1044 return ((char *)xbt_dynar_get_as(split, 2, char *));
1047 xbt_dynar_free(&split);
1059 static dw_frame_t get_frame_by_offset(xbt_dict_t all_variables, unsigned long int offset){
1061 xbt_dict_cursor_t cursor = NULL;
1065 xbt_dict_foreach(all_variables, cursor, name, res) {
1066 if(offset >= res->start && offset < res->end)
1074 void MC_get_local_variables(const char *elf_file, xbt_dict_t location_list, xbt_dict_t *all_variables){
1076 char *command = bprintf("objdump -Wi %s", elf_file);
1078 FILE *fp = popen(command, "r");
1081 perror("popen for objdump failed");
1083 char *line = NULL, *origin, *abstract_origin, *current_frame = NULL;
1086 int valid_variable = 1;
1087 char *node_type = NULL, *location_type = NULL, *variable_name = NULL, *loc_expr = NULL;
1088 xbt_dynar_t split = NULL, split2 = NULL;
1090 xbt_dict_t variables_origin = xbt_dict_new_homogeneous(NULL);
1091 xbt_dict_t subprograms_origin = xbt_dict_new_homogeneous(NULL);
1092 char *subprogram_name = NULL, *subprogram_start = NULL, *subprogram_end = NULL;
1093 int new_frame = 0, new_variable = 0;
1094 dw_frame_t variable_frame, subroutine_frame = NULL;
1096 read = getline(&line, &n, fp);
1098 while (read != -1) {
1101 read = getline(&line, &n, fp);
1105 /* Wipeout the new line character */
1106 line[read - 1] = '\0';
1108 if(strlen(line) == 0){
1109 read = getline(&line, &n, fp);
1113 xbt_str_ltrim(line, NULL);
1114 xbt_str_strip_spaces(line);
1117 read = getline(&line, &n, fp);
1121 xbt_dynar_free(&split);
1122 split = xbt_str_split(line, " ");
1125 node_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1127 if(strcmp(node_type, "(DW_TAG_subprogram)") == 0){ /* New frame */
1129 dw_frame_t frame = NULL;
1131 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1132 subprogram_start = strdup(strtok(NULL, "<"));
1133 xbt_str_rtrim(subprogram_start, ">:");
1135 read = getline(&line, &n, fp);
1140 read = getline(&line, &n, fp);
1144 /* Wipeout the new line character */
1145 line[read - 1] = '\0';
1147 if(strlen(line) == 0){
1148 read = getline(&line, &n, fp);
1152 xbt_dynar_free(&split);
1153 xbt_str_rtrim(line, NULL);
1154 xbt_str_strip_spaces(line);
1155 split = xbt_str_split(line, " ");
1157 node_type = xbt_dynar_get_as(split, 1, char *);
1159 if(strncmp(node_type, "DW_AT_", 6) != 0)
1162 if(strcmp(node_type, "DW_AT_sibling") == 0){
1164 subprogram_end = strdup(xbt_dynar_get_as(split, 3, char*));
1165 xbt_str_ltrim(subprogram_end, "<0x");
1166 xbt_str_rtrim(subprogram_end, ">");
1168 }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){ /* Frame already in dict */
1171 abstract_origin = strdup(xbt_dynar_get_as(split, 2, char*));
1172 xbt_str_ltrim(abstract_origin, "<0x");
1173 xbt_str_rtrim(abstract_origin, ">");
1174 subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, abstract_origin);
1175 frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
1177 }else if(strcmp(node_type, "DW_AT_name") == 0){
1180 free(current_frame);
1181 frame = xbt_new0(s_dw_frame_t, 1);
1182 frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1183 frame->variables = xbt_dict_new_homogeneous(NULL);
1184 frame->frame_base = xbt_new0(s_dw_location_t, 1);
1185 current_frame = strdup(frame->name);
1187 xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
1189 }else if(strcmp(node_type, "DW_AT_frame_base") == 0){
1191 location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1193 if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
1195 frame->frame_base = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
1199 xbt_str_strip_spaces(line);
1200 split2 = xbt_str_split(line, "(");
1201 xbt_dynar_remove_at(split2, 0, NULL);
1202 loc_expr = xbt_str_join(split2, " ");
1203 xbt_str_rtrim(loc_expr, ")");
1204 frame->frame_base = get_location(NULL, loc_expr);
1205 xbt_dynar_free(&split2);
1209 }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
1212 frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1214 }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
1217 frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1219 }else if(strcmp(node_type, "DW_AT_MIPS_linkage_name:") == 0){
1222 free(current_frame);
1223 frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1224 current_frame = strdup(frame->name);
1225 xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
1229 read = getline(&line, &n, fp);
1234 frame->start = strtoul(subprogram_start, NULL, 16);
1235 if(subprogram_end != NULL)
1236 frame->end = strtoul(subprogram_end, NULL, 16);
1237 xbt_dict_set(*all_variables, frame->name, frame, NULL);
1240 free(subprogram_start);
1241 if(subprogram_end != NULL){
1242 free(subprogram_end);
1243 subprogram_end = NULL;
1247 }else if(strcmp(node_type, "(DW_TAG_variable)") == 0){ /* New variable */
1249 dw_local_variable_t var = NULL;
1251 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1252 origin = strdup(strtok(NULL, "<"));
1253 xbt_str_rtrim(origin, ">:");
1255 read = getline(&line, &n, fp);
1260 read = getline(&line, &n, fp);
1264 /* Wipeout the new line character */
1265 line[read - 1] = '\0';
1267 if(strlen(line) == 0){
1268 read = getline(&line, &n, fp);
1272 xbt_dynar_free(&split);
1273 xbt_str_rtrim(line, NULL);
1274 xbt_str_strip_spaces(line);
1275 split = xbt_str_split(line, " ");
1277 node_type = xbt_dynar_get_as(split, 1, char *);
1279 if(strncmp(node_type, "DW_AT_", 6) != 0)
1282 if(strcmp(node_type, "DW_AT_name") == 0){
1285 var = xbt_new0(s_dw_local_variable_t, 1);
1286 var->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1288 xbt_dict_set(variables_origin, origin, var->name, NULL);
1290 }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
1293 abstract_origin = xbt_dynar_get_as(split, 2, char *);
1294 xbt_str_ltrim(abstract_origin, "<0x");
1295 xbt_str_rtrim(abstract_origin, ">");
1297 variable_name = (char *)xbt_dict_get_or_null(variables_origin, abstract_origin);
1298 variable_frame = get_frame_by_offset(*all_variables, strtoul(abstract_origin, NULL, 16));
1299 var = xbt_dict_get_or_null(variable_frame->variables, variable_name);
1301 }else if(strcmp(node_type, "DW_AT_location") == 0){
1303 if(valid_variable == 1 && var != NULL){
1305 var->location = xbt_new0(s_dw_location_t, 1);
1307 location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1309 if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
1311 var->location = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
1315 xbt_str_strip_spaces(line);
1316 split2 = xbt_str_split(line, "(");
1317 xbt_dynar_remove_at(split2, 0, NULL);
1318 loc_expr = xbt_str_join(split2, " ");
1319 xbt_str_rtrim(loc_expr, ")");
1320 var->location = get_location(NULL, loc_expr);
1321 xbt_dynar_free(&split2);
1327 }else if(strcmp(node_type, "DW_AT_external") == 0){
1333 read = getline(&line, &n, fp);
1337 if(new_variable == 1 && valid_variable == 1){
1339 variable_frame = xbt_dict_get_or_null(*all_variables, current_frame);
1340 xbt_dict_set(variable_frame->variables, var->name, var, NULL);
1346 }else if(strcmp(node_type, "(DW_TAG_inlined_subroutine)") == 0){
1348 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1349 origin = strdup(strtok(NULL, "<"));
1350 xbt_str_rtrim(origin, ">:");
1352 read = getline(&line, &n, fp);
1356 /* Wipeout the new line character */
1357 line[read - 1] = '\0';
1360 read = getline(&line, &n, fp);
1364 if(strlen(line) == 0){
1365 read = getline(&line, &n, fp);
1369 xbt_dynar_free(&split);
1370 xbt_str_rtrim(line, NULL);
1371 xbt_str_strip_spaces(line);
1372 split = xbt_str_split(line, " ");
1374 if(strncmp(xbt_dynar_get_as(split, 1, char *), "DW_AT_", 6) != 0)
1377 node_type = xbt_dynar_get_as(split, 1, char *);
1379 if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
1381 origin = xbt_dynar_get_as(split, 2, char *);
1382 xbt_str_ltrim(origin, "<0x");
1383 xbt_str_rtrim(origin, ">");
1385 subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, origin);
1386 subroutine_frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
1388 }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
1390 subroutine_frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1392 }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
1394 subroutine_frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1397 read = getline(&line, &n, fp);
1403 read = getline(&line, &n, fp);
1409 xbt_dynar_free(&split);
1416 static dw_location_t get_location(xbt_dict_t location_list, char *expr){
1418 dw_location_t loc = xbt_new0(s_dw_location_t, 1);
1420 if(location_list != NULL){
1422 char *key = bprintf("%d", (int)strtoul(expr, NULL, 16));
1423 loc->type = e_dw_loclist;
1424 loc->location.loclist = (xbt_dynar_t)xbt_dict_get_or_null(location_list, key);
1426 XBT_INFO("Key not found in loclist");
1432 char *tok = NULL, *tok2 = NULL;
1434 xbt_dynar_t tokens1 = xbt_str_split(expr, ";");
1435 xbt_dynar_t tokens2;
1437 loc->type = e_dw_compose;
1438 loc->location.compose = xbt_dynar_new(sizeof(dw_location_t), NULL);
1440 while(cursor < xbt_dynar_length(tokens1)){
1442 tok = xbt_dynar_get_as(tokens1, cursor, char*);
1443 tokens2 = xbt_str_split(tok, " ");
1444 tok2 = xbt_dynar_get_as(tokens2, 0, char*);
1446 if(strncmp(tok2, "DW_OP_reg", 9) == 0){
1447 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1448 new_element->type = e_dw_register;
1449 new_element->location.reg = atoi(strtok(tok2, "DW_OP_reg"));
1450 xbt_dynar_push(loc->location.compose, &new_element);
1451 }else if(strcmp(tok2, "DW_OP_fbreg:") == 0){
1452 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1453 new_element->type = e_dw_fbregister_op;
1454 new_element->location.fbreg_op = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1455 xbt_dynar_push(loc->location.compose, &new_element);
1456 }else if(strncmp(tok2, "DW_OP_breg", 10) == 0){
1457 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1458 new_element->type = e_dw_bregister_op;
1459 new_element->location.breg_op.reg = atoi(strtok(tok2, "DW_OP_breg"));
1460 new_element->location.breg_op.offset = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1461 xbt_dynar_push(loc->location.compose, &new_element);
1462 }else if(strncmp(tok2, "DW_OP_lit", 9) == 0){
1463 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1464 new_element->type = e_dw_lit;
1465 new_element->location.lit = atoi(strtok(tok2, "DW_OP_lit"));
1466 xbt_dynar_push(loc->location.compose, &new_element);
1467 }else if(strcmp(tok2, "DW_OP_piece:") == 0){
1468 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1469 new_element->type = e_dw_piece;
1470 new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1471 /*if(strlen(xbt_dynar_get_as(tokens2, 1, char*)) > 1)
1472 new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1474 new_element->location.piece = xbt_dynar_get_as(tokens2, 1, char*)[0] - '0';*/
1475 xbt_dynar_push(loc->location.compose, &new_element);
1476 }else if(strcmp(tok2, "DW_OP_plus_uconst:") == 0){
1477 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1478 new_element->type = e_dw_plus_uconst;
1479 new_element->location.plus_uconst = atoi(xbt_dynar_get_as(tokens2, 1, char *));
1480 xbt_dynar_push(loc->location.compose, &new_element);
1481 }else if(strcmp(tok, "DW_OP_abs") == 0 ||
1482 strcmp(tok, "DW_OP_and") == 0 ||
1483 strcmp(tok, "DW_OP_div") == 0 ||
1484 strcmp(tok, "DW_OP_minus") == 0 ||
1485 strcmp(tok, "DW_OP_mod") == 0 ||
1486 strcmp(tok, "DW_OP_mul") == 0 ||
1487 strcmp(tok, "DW_OP_neg") == 0 ||
1488 strcmp(tok, "DW_OP_not") == 0 ||
1489 strcmp(tok, "DW_OP_or") == 0 ||
1490 strcmp(tok, "DW_OP_plus") == 0){
1491 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1492 new_element->type = e_dw_arithmetic;
1493 new_element->location.arithmetic = strdup(strtok(tok2, "DW_OP_"));
1494 xbt_dynar_push(loc->location.compose, &new_element);
1495 }else if(strcmp(tok, "DW_OP_stack_value") == 0){
1496 }else if(strcmp(tok2, "DW_OP_deref_size:") == 0){
1497 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1498 new_element->type = e_dw_deref;
1499 new_element->location.deref_size = (unsigned int short) atoi(xbt_dynar_get_as(tokens2, 1, char*));
1500 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1501 new_element->location.deref_size = atoi(xbt_dynar_get_as(tokens, cursor, char*));
1503 new_element->location.deref_size = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
1504 xbt_dynar_push(loc->location.compose, &new_element);
1505 }else if(strcmp(tok, "DW_OP_deref") == 0){
1506 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1507 new_element->type = e_dw_deref;
1508 new_element->location.deref_size = sizeof(void *);
1509 xbt_dynar_push(loc->location.compose, &new_element);
1510 }else if(strcmp(tok2, "DW_OP_constu:") == 0){
1511 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1512 new_element->type = e_dw_uconstant;
1513 new_element->location.uconstant.bytes = 1;
1514 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1515 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1516 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens, cursor, char*)));
1518 new_element->location.uconstant.value = (unsigned long int)(xbt_dynar_get_as(tokens, cursor, char*)[0] - '0');*/
1519 xbt_dynar_push(loc->location.compose, &new_element);
1520 }else if(strcmp(tok2, "DW_OP_consts:") == 0){
1521 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1522 new_element->type = e_dw_sconstant;
1523 new_element->location.sconstant.bytes = 1;
1524 new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1525 xbt_dynar_push(loc->location.compose, &new_element);
1526 }else if(strcmp(tok2, "DW_OP_const1u:") == 0 ||
1527 strcmp(tok2, "DW_OP_const2u:") == 0 ||
1528 strcmp(tok2, "DW_OP_const4u:") == 0 ||
1529 strcmp(tok2, "DW_OP_const8u:") == 0){
1530 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1531 new_element->type = e_dw_uconstant;
1532 new_element->location.uconstant.bytes = tok2[11] - '0';
1533 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1534 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1535 new_element->location.constant.value = atoi(xbt_dynar_get_as(tokens, cursor, char*));
1537 new_element->location.constant.value = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
1538 xbt_dynar_push(loc->location.compose, &new_element);
1539 }else if(strcmp(tok, "DW_OP_const1s") == 0 ||
1540 strcmp(tok, "DW_OP_const2s") == 0 ||
1541 strcmp(tok, "DW_OP_const4s") == 0 ||
1542 strcmp(tok, "DW_OP_const8s") == 0){
1543 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1544 new_element->type = e_dw_sconstant;
1545 new_element->location.sconstant.bytes = tok2[11] - '0';
1546 new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1547 xbt_dynar_push(loc->location.compose, &new_element);
1549 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1550 new_element->type = e_dw_unsupported;
1551 xbt_dynar_push(loc->location.compose, &new_element);
1555 xbt_dynar_free(&tokens2);
1559 xbt_dynar_free(&tokens1);
1568 void print_local_variables(xbt_dict_t list){
1570 dw_location_entry_t entry;
1571 dw_location_t location_entry;
1572 unsigned int cursor3 = 0, cursor4 = 0;
1573 xbt_dict_cursor_t cursor = 0, cursor2 = 0;
1575 char *frame_name, *variable_name;
1576 dw_frame_t current_frame;
1577 dw_local_variable_t current_variable;
1579 xbt_dict_foreach(list, cursor, frame_name, current_frame){
1580 fprintf(stderr, "Frame name : %s\n", current_frame->name);
1581 fprintf(stderr, "Location type : %d\n", current_frame->frame_base->type);
1582 xbt_dict_foreach((xbt_dict_t)current_frame->variables, cursor2, variable_name, current_variable){
1583 fprintf(stderr, "Name : %s\n", current_variable->name);
1584 if(current_variable->location == NULL)
1586 fprintf(stderr, "Location type : %d\n", current_variable->location->type);
1587 switch(current_variable->location->type){
1589 xbt_dynar_foreach(current_variable->location->location.loclist, cursor3, entry){
1590 fprintf(stderr, "Lowpc : %lx, Highpc : %lx,", entry->lowpc, entry->highpc);
1591 switch(entry->location->type){
1592 case e_dw_register :
1593 fprintf(stderr, " Location : in register %d\n", entry->location->location.reg);
1595 case e_dw_bregister_op:
1596 fprintf(stderr, " Location : Add %d to the value in register %d\n", entry->location->location.breg_op.offset, entry->location->location.breg_op.reg);
1599 fprintf(stderr, "Value already kwnown : %d\n", entry->location->location.lit);
1601 case e_dw_fbregister_op:
1602 fprintf(stderr, " Location : %d bytes from logical frame pointer\n", entry->location->location.fbreg_op);
1605 fprintf(stderr, " Location :\n");
1606 xbt_dynar_foreach(entry->location->location.compose, cursor4, location_entry){
1607 switch(location_entry->type){
1608 case e_dw_register :
1609 fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
1611 case e_dw_bregister_op:
1612 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);
1615 fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
1617 case e_dw_fbregister_op:
1618 fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
1621 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);
1623 case e_dw_arithmetic :
1624 fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
1627 fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
1629 case e_dw_uconstant :
1630 fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
1632 case e_dw_sconstant :
1633 fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
1636 fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
1642 fprintf(stderr, "Location type not supported\n");
1649 fprintf(stderr, "Location :\n");
1650 xbt_dynar_foreach(current_variable->location->location.compose, cursor4, location_entry){
1651 switch(location_entry->type){
1652 case e_dw_register :
1653 fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
1655 case e_dw_bregister_op:
1656 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);
1659 fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
1661 case e_dw_fbregister_op:
1662 fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
1665 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);
1667 case e_dw_arithmetic :
1668 fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
1671 fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
1673 case e_dw_uconstant :
1674 fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
1676 case e_dw_sconstant :
1677 fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
1680 fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
1686 fprintf(stderr, "Location type not supported\n");
1694 static size_t data_bss_ignore_size(void *address){
1695 unsigned int cursor = 0;
1697 int end = xbt_dynar_length(mc_data_bss_comparison_ignore) - 1;
1698 mc_data_bss_ignore_variable_t var;
1700 while(start <= end){
1701 cursor = (start + end) / 2;
1702 var = (mc_data_bss_ignore_variable_t)xbt_dynar_get_as(mc_data_bss_comparison_ignore, cursor, mc_data_bss_ignore_variable_t);
1703 if(var->address == address)
1705 if(var->address < address){
1706 if((void *)((char *)var->address + var->size) > address)
1707 return (char *)var->address + var->size - (char*)address;
1711 if(var->address > address)
1719 static void MC_get_global_variables(char *elf_file){
1723 char *command = bprintf("objdump -t -j .data -j .bss %s", elf_file);
1725 fp = popen(command, "r");
1728 perror("popen failed");
1732 if(mc_global_variables == NULL)
1733 mc_global_variables = xbt_dynar_new(sizeof(global_variable_t), global_variable_free_voidp);
1739 xbt_dynar_t line_tokens = NULL;
1740 unsigned long offset;
1742 int type = strcmp(elf_file, xbt_binary_name); /* 0 = binary, other = libsimgrid */
1744 while ((read = getline(&line, &n, fp)) != -1){
1749 /* Wipeout the new line character */
1750 line[read - 1] = '\0';
1752 xbt_str_strip_spaces(line);
1753 xbt_str_ltrim(line, NULL);
1755 line_tokens = xbt_str_split(line, NULL);
1757 if(xbt_dynar_length(line_tokens) <= 4 || strcmp(xbt_dynar_get_as(line_tokens, 0, char *), "SYMBOL") == 0)
1760 if((strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "__gcov", 6) == 0)
1761 || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "gcov", 4) == 0)
1762 || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), ".data") == 0)
1763 || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), ".bss") == 0)
1764 || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "stderr", 6) == 0)
1765 || ((size_t)strtoul(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 2, char*), NULL, 16) == 0))
1768 global_variable_t var = xbt_new0(s_global_variable_t, 1);
1771 var->address = (void *)strtoul(xbt_dynar_get_as(line_tokens, 0, char*), NULL, 16);
1773 offset = strtoul(xbt_dynar_get_as(line_tokens, 0, char*), NULL, 16);
1774 var->address = (char *)start_text_libsimgrid+offset;
1777 var->size = (size_t)strtoul(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 2, char*), NULL, 16);
1778 var->name = strdup(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*));
1780 if(data_bss_ignore_size(var->address) > 0)
1781 global_variable_free(var);
1783 xbt_dynar_push(mc_global_variables, &var);
1785 xbt_dynar_free(&line_tokens);
1795 void global_variable_free(global_variable_t v){
1800 void global_variable_free_voidp(void *v){
1801 global_variable_free((global_variable_t) * (void **) v);