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 _sg_init_status;
28 void _mc_cfg_cb_reduce(const char *name, int pos) {
29 if (_sg_init_status && !_sg_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(_sg_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 (_sg_init_status && !_sg_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(_sg_cfg_set, name);
48 void _mc_cfg_cb_property(const char *name, int pos) {
49 if (_sg_init_status && !_sg_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(_sg_cfg_set, name);
55 void _mc_cfg_cb_timeout(const char *name, int pos) {
56 if (_sg_init_status && !_sg_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(_sg_cfg_set, name);
62 void _mc_cfg_cb_max_depth(const char *name, int pos) {
63 if (_sg_init_status && !_sg_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(_sg_cfg_set, name);
69 void _mc_cfg_cb_visited(const char *name, int pos) {
70 if (_sg_init_status && !_sg_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(_sg_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 MC_ignore_data_bss(&end_raw_heap, sizeof(end_raw_heap));
177 /* Get global variables */
178 MC_get_global_variables(xbt_binary_name);
179 MC_get_global_variables(libsimgrid_path);
183 /* Ignore some variables from xbt/ex.h used by exception e for stacks comparison */
184 MC_ignore_stack("e", "*");
185 MC_ignore_stack("__ex_cleanup", "*");
186 MC_ignore_stack("__ex_mctx_en", "*");
187 MC_ignore_stack("__ex_mctx_me", "*");
188 MC_ignore_stack("__xbt_ex_ctx_ptr", "*");
189 MC_ignore_stack("_log_ev", "*");
190 MC_ignore_stack("_throw_ctx", "*");
191 MC_ignore_stack("ctx", "*");
198 void MC_modelcheck_safety(void)
200 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
202 /* Check if MC is already initialized */
203 if (initial_state_safety)
206 mc_time = xbt_new0(double, simix_process_maxpid);
208 /* Initialize the data structures that must be persistent across every
209 iteration of the model-checker (in RAW memory) */
213 /* Initialize statistics */
214 mc_stats = xbt_new0(s_mc_stats_t, 1);
215 mc_stats->state_size = 1;
217 /* Create exploration stack */
218 mc_stack_safety = xbt_fifo_new();
222 if(_surf_mc_visited > 0){
226 MC_init_memory_map_info();
227 get_libsimgrid_plt_section();
228 get_binary_plt_section();
235 /* Save the initial state */
236 initial_state_safety = xbt_new0(s_mc_global_t, 1);
237 initial_state_safety->snapshot = MC_take_snapshot();
248 void MC_modelcheck_liveness(){
250 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
256 /* Initialize statistics */
257 mc_stats_pair = xbt_new0(s_mc_stats_pair_t, 1);
259 /* Create exploration stack */
260 mc_stack_liveness = xbt_fifo_new();
262 initial_state_liveness = xbt_new0(s_mc_global_t, 1);
269 MC_print_statistics_pairs(mc_stats_pair);
285 int MC_random(int min, int max)
287 /*FIXME: return mc_current_state->executed_transition->random.value;*/
292 * \brief Schedules all the process that are ready to run
294 void MC_wait_for_requests(void)
296 smx_process_t process;
300 while (!xbt_dynar_is_empty(simix_global->process_to_run)) {
301 SIMIX_process_runall();
302 xbt_dynar_foreach(simix_global->process_that_ran, iter, process) {
303 req = &process->simcall;
304 if (req->call != SIMCALL_NONE && !MC_request_is_visible(req))
305 SIMIX_simcall_pre(req, 0);
310 int MC_deadlock_check()
312 int deadlock = FALSE;
313 smx_process_t process;
314 if(xbt_swag_size(simix_global->process_list)){
316 xbt_swag_foreach(process, simix_global->process_list){
317 if(process->simcall.call != SIMCALL_NONE
318 && MC_request_is_enabled(&process->simcall)){
328 * \brief Re-executes from the state at position start all the transitions indicated by
329 * a given model-checker stack.
330 * \param stack The stack with the transitions to execute.
331 * \param start Start index to begin the re-execution.
333 void MC_replay(xbt_fifo_t stack, int start)
335 int raw_mem = (mmalloc_get_current_heap() == raw_heap);
339 smx_simcall_t req = NULL, saved_req = NULL;
340 xbt_fifo_item_t item, start_item;
343 XBT_DEBUG("**** Begin Replay ****");
346 /* Restore the initial state */
347 MC_restore_snapshot(initial_state_safety->snapshot);
348 /* At the moment of taking the snapshot the raw heap was set, so restoring
349 * it will set it back again, we have to unset it to continue */
353 start_item = xbt_fifo_get_last_item(stack);
356 start_item = xbt_fifo_get_prev_item(start_item);
361 /* Traverse the stack from the state at position start and re-execute the transitions */
362 for (item = start_item;
363 item != xbt_fifo_get_first_item(stack);
364 item = xbt_fifo_get_prev_item(item)) {
366 state = (mc_state_t) xbt_fifo_get_item_content(item);
367 saved_req = MC_state_get_executed_request(state, &value);
370 /* because we got a copy of the executed request, we have to fetch the
371 real one, pointed by the request field of the issuer process */
372 req = &saved_req->issuer->simcall;
374 /* Debug information */
375 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
376 req_str = MC_request_to_string(req, value);
377 XBT_DEBUG("Replay: %s (%p)", req_str, state);
382 SIMIX_simcall_pre(req, value);
383 MC_wait_for_requests();
385 /* Update statistics */
386 mc_stats->visited_states++;
387 mc_stats->executed_transitions++;
389 XBT_DEBUG("**** End Replay ****");
399 void MC_replay_liveness(xbt_fifo_t stack, int all_stack)
402 initial_state_liveness->raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
406 smx_simcall_t req = NULL, saved_req = NULL;
407 xbt_fifo_item_t item;
409 mc_pair_stateless_t pair;
412 XBT_DEBUG("**** Begin Replay ****");
414 /* Restore the initial state */
415 MC_restore_snapshot(initial_state_liveness->snapshot);
417 /* At the moment of taking the snapshot the raw heap was set, so restoring
418 * it will set it back again, we have to unset it to continue */
419 if(!initial_state_liveness->raw_mem_set)
424 item = xbt_fifo_get_last_item(stack);
426 while(depth <= xbt_fifo_size(stack)){
428 pair = (mc_pair_stateless_t) xbt_fifo_get_item_content(item);
429 state = (mc_state_t) pair->graph_state;
431 if(pair->requests > 0){
433 saved_req = MC_state_get_executed_request(state, &value);
434 //XBT_DEBUG("SavedReq->call %u", saved_req->call);
436 if(saved_req != NULL){
437 /* because we got a copy of the executed request, we have to fetch the
438 real one, pointed by the request field of the issuer process */
439 req = &saved_req->issuer->simcall;
440 //XBT_DEBUG("Req->call %u", req->call);
442 /* Debug information */
443 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
444 req_str = MC_request_to_string(req, value);
445 XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
451 SIMIX_simcall_pre(req, value);
452 MC_wait_for_requests();
457 /* Update statistics */
458 mc_stats_pair->visited_pairs++;
460 item = xbt_fifo_get_prev_item(item);
465 /* Traverse the stack from the initial state and re-execute the transitions */
466 for (item = xbt_fifo_get_last_item(stack);
467 item != xbt_fifo_get_first_item(stack);
468 item = xbt_fifo_get_prev_item(item)) {
470 pair = (mc_pair_stateless_t) xbt_fifo_get_item_content(item);
471 state = (mc_state_t) pair->graph_state;
473 if(pair->requests > 0){
475 saved_req = MC_state_get_executed_request(state, &value);
476 //XBT_DEBUG("SavedReq->call %u", saved_req->call);
478 if(saved_req != NULL){
479 /* because we got a copy of the executed request, we have to fetch the
480 real one, pointed by the request field of the issuer process */
481 req = &saved_req->issuer->simcall;
482 //XBT_DEBUG("Req->call %u", req->call);
484 /* Debug information */
485 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
486 req_str = MC_request_to_string(req, value);
487 XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
493 SIMIX_simcall_pre(req, value);
494 MC_wait_for_requests();
499 /* Update statistics */
500 mc_stats_pair->visited_pairs++;
504 XBT_DEBUG("**** End Replay ****");
506 if(initial_state_liveness->raw_mem_set)
514 * \brief Dumps the contents of a model-checker's stack and shows the actual
516 * \param stack The stack to dump
518 void MC_dump_stack_safety(xbt_fifo_t stack)
521 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
523 MC_show_stack_safety(stack);
525 if(!_surf_mc_checkpoint){
530 while ((state = (mc_state_t) xbt_fifo_pop(stack)) != NULL)
531 MC_state_delete(state);
544 void MC_show_stack_safety(xbt_fifo_t stack)
548 xbt_fifo_item_t item;
550 char *req_str = NULL;
552 for (item = xbt_fifo_get_last_item(stack);
553 (item ? (state = (mc_state_t) (xbt_fifo_get_item_content(item)))
554 : (NULL)); item = xbt_fifo_get_prev_item(item)) {
555 req = MC_state_get_executed_request(state, &value);
557 req_str = MC_request_to_string(req, value);
558 XBT_INFO("%s", req_str);
564 void MC_show_deadlock(smx_simcall_t req)
566 /*char *req_str = NULL;*/
567 XBT_INFO("**************************");
568 XBT_INFO("*** DEAD-LOCK DETECTED ***");
569 XBT_INFO("**************************");
570 XBT_INFO("Locked request:");
571 /*req_str = MC_request_to_string(req);
572 XBT_INFO("%s", req_str);
574 XBT_INFO("Counter-example execution trace:");
575 MC_dump_stack_safety(mc_stack_safety);
579 void MC_show_stack_liveness(xbt_fifo_t stack){
581 mc_pair_stateless_t pair;
582 xbt_fifo_item_t item;
584 char *req_str = NULL;
586 for (item = xbt_fifo_get_last_item(stack);
587 (item ? (pair = (mc_pair_stateless_t) (xbt_fifo_get_item_content(item)))
588 : (NULL)); item = xbt_fifo_get_prev_item(item)) {
589 req = MC_state_get_executed_request(pair->graph_state, &value);
591 if(pair->requests>0){
592 req_str = MC_request_to_string(req, value);
593 XBT_INFO("%s", req_str);
596 XBT_INFO("End of system requests but evolution in Büchi automaton");
602 void MC_dump_stack_liveness(xbt_fifo_t stack){
604 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
606 mc_pair_stateless_t pair;
609 while ((pair = (mc_pair_stateless_t) xbt_fifo_pop(stack)) != NULL)
610 pair_stateless_free(pair);
619 void MC_print_statistics(mc_stats_t stats)
621 //XBT_INFO("State space size ~= %lu", stats->state_size);
622 XBT_INFO("Expanded states = %lu", stats->expanded_states);
623 XBT_INFO("Visited states = %lu", stats->visited_states);
624 XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
625 XBT_INFO("Expanded / Visited = %lf",
626 (double) stats->visited_states / stats->expanded_states);
627 /*XBT_INFO("Exploration coverage = %lf",
628 (double)stats->expanded_states / stats->state_size); */
631 void MC_print_statistics_pairs(mc_stats_pair_t stats)
633 XBT_INFO("Expanded pairs = %lu", stats->expanded_pairs);
634 XBT_INFO("Visited pairs = %lu", stats->visited_pairs);
635 //XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
636 XBT_INFO("Expanded / Visited = %lf",
637 (double) stats->visited_pairs / stats->expanded_pairs);
639 if(mmalloc_get_current_heap() == raw_heap)
643 void MC_assert(int prop)
645 if (MC_is_active() && !prop){
646 XBT_INFO("**************************");
647 XBT_INFO("*** PROPERTY NOT VALID ***");
648 XBT_INFO("**************************");
649 XBT_INFO("Counter-example execution trace:");
650 MC_dump_stack_safety(mc_stack_safety);
651 MC_print_statistics(mc_stats);
656 static void MC_assert_pair(int prop){
657 if (MC_is_active() && !prop) {
658 XBT_INFO("**************************");
659 XBT_INFO("*** PROPERTY NOT VALID ***");
660 XBT_INFO("**************************");
661 //XBT_INFO("Counter-example execution trace:");
662 MC_show_stack_liveness(mc_stack_liveness);
663 //MC_dump_snapshot_stack(mc_snapshot_stack);
664 MC_print_statistics_pairs(mc_stats_pair);
669 void MC_process_clock_add(smx_process_t process, double amount)
671 mc_time[process->pid] += amount;
674 double MC_process_clock_get(smx_process_t process)
678 return mc_time[process->pid];
686 void MC_automaton_load(const char *file){
688 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
692 if (_mc_property_automaton == NULL)
693 _mc_property_automaton = xbt_automaton_new();
695 xbt_automaton_load(_mc_property_automaton,file);
704 void MC_automaton_new_propositional_symbol(const char* id, void* fct) {
706 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
710 if (_mc_property_automaton == NULL)
711 _mc_property_automaton = xbt_automaton_new();
713 xbt_new_propositional_symbol(_mc_property_automaton,id,fct);
722 /************ MC_ignore ***********/
724 void MC_ignore_heap(void *address, size_t size){
726 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
730 if(mc_heap_comparison_ignore == NULL)
731 mc_heap_comparison_ignore = xbt_dynar_new(sizeof(mc_heap_ignore_region_t), NULL);
733 mc_heap_ignore_region_t region = NULL;
734 region = xbt_new0(s_mc_heap_ignore_region_t, 1);
735 region->address = address;
738 if((address >= std_heap) && (address <= (void*)((char *)std_heap + STD_HEAP_SIZE))){
740 region->block = ((char*)address - (char*)((xbt_mheap_t)std_heap)->heapbase) / BLOCKSIZE + 1;
742 if(((xbt_mheap_t)std_heap)->heapinfo[region->block].type == 0){
743 region->fragment = -1;
745 region->fragment = ((uintptr_t) (ADDR2UINT (address) % (BLOCKSIZE))) >> ((xbt_mheap_t)std_heap)->heapinfo[region->block].type;
750 unsigned int cursor = 0;
751 mc_heap_ignore_region_t current_region;
752 xbt_dynar_foreach(mc_heap_comparison_ignore, cursor, current_region){
753 if(current_region->address > address)
757 xbt_dynar_insert_at(mc_heap_comparison_ignore, cursor, ®ion);
765 void MC_ignore_data_bss(void *address, size_t size){
767 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
771 if(mc_data_bss_comparison_ignore == NULL)
772 mc_data_bss_comparison_ignore = xbt_dynar_new(sizeof(mc_data_bss_ignore_variable_t), NULL);
774 if(xbt_dynar_is_empty(mc_data_bss_comparison_ignore)){
776 mc_data_bss_ignore_variable_t var = NULL;
777 var = xbt_new0(s_mc_data_bss_ignore_variable_t, 1);
778 var->address = address;
781 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, 0, &var);
785 unsigned int cursor = 0;
787 int end = xbt_dynar_length(mc_data_bss_comparison_ignore) - 1;
788 mc_data_bss_ignore_variable_t current_var = NULL;
791 cursor = (start + end) / 2;
792 current_var = (mc_data_bss_ignore_variable_t)xbt_dynar_get_as(mc_data_bss_comparison_ignore, cursor, mc_data_bss_ignore_variable_t);
793 if(current_var->address == address){
799 if(current_var->address < address)
801 if(current_var->address > address)
805 mc_data_bss_ignore_variable_t var = NULL;
806 var = xbt_new0(s_mc_data_bss_ignore_variable_t, 1);
807 var->address = address;
810 if(current_var->address < address)
811 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, cursor + 1, &var);
813 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, cursor, &var);
823 static size_t data_bss_ignore_size(void *address){
824 unsigned int cursor = 0;
826 int end = xbt_dynar_length(mc_data_bss_comparison_ignore) - 1;
827 mc_data_bss_ignore_variable_t var;
830 cursor = (start + end) / 2;
831 var = (mc_data_bss_ignore_variable_t)xbt_dynar_get_as(mc_data_bss_comparison_ignore, cursor, mc_data_bss_ignore_variable_t);
832 if(var->address == address)
834 if(var->address < address){
835 if((void *)((char *)var->address + var->size) > address)
836 return (char *)var->address + var->size - (char*)address;
840 if(var->address > address)
849 void MC_ignore_stack(const char *var_name, const char *frame){
851 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
855 if(mc_stack_comparison_ignore == NULL)
856 mc_stack_comparison_ignore = xbt_dynar_new(sizeof(mc_stack_ignore_variable_t), NULL);
858 if(xbt_dynar_is_empty(mc_stack_comparison_ignore)){
860 mc_stack_ignore_variable_t var = NULL;
861 var = xbt_new0(s_mc_stack_ignore_variable_t, 1);
862 var->var_name = strdup(var_name);
863 var->frame = strdup(frame);
865 xbt_dynar_insert_at(mc_stack_comparison_ignore, 0, &var);
869 unsigned int cursor = 0;
871 int end = xbt_dynar_length(mc_stack_comparison_ignore) - 1;
872 mc_stack_ignore_variable_t current_var = NULL;
875 cursor = (start + end) / 2;
876 current_var = (mc_stack_ignore_variable_t)xbt_dynar_get_as(mc_stack_comparison_ignore, cursor, mc_stack_ignore_variable_t);
877 if(strcmp(current_var->frame, frame) == 0){
878 if(strcmp(current_var->var_name, var_name) == 0){
884 if(strcmp(current_var->var_name, var_name) < 0)
886 if(strcmp(current_var->var_name, var_name) > 0)
889 if(strcmp(current_var->frame, frame) < 0)
891 if(strcmp(current_var->frame, frame) > 0)
895 mc_stack_ignore_variable_t var = NULL;
896 var = xbt_new0(s_mc_stack_ignore_variable_t, 1);
897 var->var_name = strdup(var_name);
898 var->frame = strdup(frame);
900 if(strcmp(current_var->frame, frame) < 0)
901 xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor + 1, &var);
903 xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor, &var);
914 void MC_new_stack_area(void *stack, char *name, void* context, size_t size){
916 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
919 if(stacks_areas == NULL)
920 stacks_areas = xbt_dynar_new(sizeof(stack_region_t), NULL);
922 stack_region_t region = NULL;
923 region = xbt_new0(s_stack_region_t, 1);
924 region->address = stack;
925 region->process_name = strdup(name);
926 region->context = context;
928 xbt_dynar_push(stacks_areas, ®ion);
936 /************ DWARF ***********/
938 xbt_dict_t MC_get_location_list(const char *elf_file){
940 char *command = bprintf("objdump -Wo %s", elf_file);
942 FILE *fp = popen(command, "r");
945 perror("popen for objdump failed");
949 int debug = 0; /*Detect if the program has been compiled with -g */
951 xbt_dict_t location_list = xbt_dict_new_homogeneous(NULL);
952 char *line = NULL, *loc_expr = NULL;
956 xbt_dynar_t split = NULL;
958 while ((read = getline(&line, &n, fp)) != -1) {
960 /* Wipeout the new line character */
961 line[read - 1] = '\0';
963 xbt_str_trim(line, NULL);
968 if(strlen(line) == 0)
973 if(strncmp(line, elf_file, strlen(elf_file)) == 0)
976 if(strncmp(line, "Contents", 8) == 0)
979 if(strncmp(line, "Offset", 6) == 0){
986 XBT_INFO("Your program must be compiled with -g");
990 xbt_dynar_t loclist = xbt_dynar_new(sizeof(dw_location_entry_t), NULL);
992 xbt_str_strip_spaces(line);
993 split = xbt_str_split(line, " ");
995 while(read != -1 && strcmp("<End", (char *)xbt_dynar_get_as(split, 1, char *)) != 0){
997 dw_location_entry_t new_entry = xbt_new0(s_dw_location_entry_t, 1);
998 new_entry->lowpc = strtoul((char *)xbt_dynar_get_as(split, 1, char *), NULL, 16);
999 new_entry->highpc = strtoul((char *)xbt_dynar_get_as(split, 2, char *), NULL, 16);
1002 while(cursor_remove < 3){
1003 xbt_dynar_remove_at(split, 0, NULL);
1007 loc_expr = xbt_str_join(split, " ");
1008 xbt_str_ltrim(loc_expr, "(");
1009 xbt_str_rtrim(loc_expr, ")");
1010 new_entry->location = get_location(NULL, loc_expr);
1012 xbt_dynar_push(loclist, &new_entry);
1014 xbt_dynar_free(&split);
1017 read = getline(&line, &n, fp);
1019 line[read - 1] = '\0';
1020 xbt_str_strip_spaces(line);
1021 split = xbt_str_split(line, " ");
1027 char *key = bprintf("%d", (int)strtoul((char *)xbt_dynar_get_as(split, 0, char *), NULL, 16));
1028 xbt_dict_set(location_list, key, loclist, NULL);
1030 xbt_dynar_free(&split);
1038 return location_list;
1041 static dw_frame_t get_frame_by_offset(xbt_dict_t all_variables, unsigned long int offset){
1043 xbt_dict_cursor_t cursor = NULL;
1047 xbt_dict_foreach(all_variables, cursor, name, res) {
1048 if(offset >= res->start && offset < res->end)
1056 void MC_get_local_variables(const char *elf_file, xbt_dict_t location_list, xbt_dict_t *all_variables){
1058 char *command = bprintf("objdump -Wi %s", elf_file);
1060 FILE *fp = popen(command, "r");
1063 perror("popen for objdump failed");
1065 char *line = NULL, *origin, *abstract_origin, *current_frame = NULL;
1068 int valid_variable = 1;
1069 char *node_type = NULL, *location_type = NULL, *variable_name = NULL, *loc_expr = NULL;
1070 xbt_dynar_t split = NULL, split2 = NULL;
1072 xbt_dict_t variables_origin = xbt_dict_new_homogeneous(NULL);
1073 xbt_dict_t subprograms_origin = xbt_dict_new_homogeneous(NULL);
1074 char *subprogram_name = NULL, *subprogram_start = NULL, *subprogram_end = NULL;
1075 int new_frame = 0, new_variable = 0;
1076 dw_frame_t variable_frame, subroutine_frame = NULL;
1078 read = getline(&line, &n, fp);
1080 while (read != -1) {
1083 read = getline(&line, &n, fp);
1087 /* Wipeout the new line character */
1088 line[read - 1] = '\0';
1090 if(strlen(line) == 0){
1091 read = getline(&line, &n, fp);
1095 xbt_str_ltrim(line, NULL);
1096 xbt_str_strip_spaces(line);
1099 read = getline(&line, &n, fp);
1103 xbt_dynar_free(&split);
1104 split = xbt_str_split(line, " ");
1107 node_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1109 if(strcmp(node_type, "(DW_TAG_subprogram)") == 0){ /* New frame */
1111 dw_frame_t frame = NULL;
1113 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1114 subprogram_start = strdup(strtok(NULL, "<"));
1115 xbt_str_rtrim(subprogram_start, ">:");
1117 read = getline(&line, &n, fp);
1122 read = getline(&line, &n, fp);
1126 /* Wipeout the new line character */
1127 line[read - 1] = '\0';
1129 if(strlen(line) == 0){
1130 read = getline(&line, &n, fp);
1134 xbt_dynar_free(&split);
1135 xbt_str_rtrim(line, NULL);
1136 xbt_str_strip_spaces(line);
1137 split = xbt_str_split(line, " ");
1139 node_type = xbt_dynar_get_as(split, 1, char *);
1141 if(strncmp(node_type, "DW_AT_", 6) != 0)
1144 if(strcmp(node_type, "DW_AT_sibling") == 0){
1146 subprogram_end = strdup(xbt_dynar_get_as(split, 3, char*));
1147 xbt_str_ltrim(subprogram_end, "<0x");
1148 xbt_str_rtrim(subprogram_end, ">");
1150 }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){ /* Frame already in dict */
1153 abstract_origin = strdup(xbt_dynar_get_as(split, 2, char*));
1154 xbt_str_ltrim(abstract_origin, "<0x");
1155 xbt_str_rtrim(abstract_origin, ">");
1156 subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, abstract_origin);
1157 frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
1159 }else if(strcmp(node_type, "DW_AT_name") == 0){
1162 free(current_frame);
1163 frame = xbt_new0(s_dw_frame_t, 1);
1164 frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1165 frame->variables = xbt_dict_new_homogeneous(NULL);
1166 frame->frame_base = xbt_new0(s_dw_location_t, 1);
1167 current_frame = strdup(frame->name);
1169 xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
1171 }else if(strcmp(node_type, "DW_AT_frame_base") == 0){
1173 location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1175 if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
1177 frame->frame_base = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
1181 xbt_str_strip_spaces(line);
1182 split2 = xbt_str_split(line, "(");
1183 xbt_dynar_remove_at(split2, 0, NULL);
1184 loc_expr = xbt_str_join(split2, " ");
1185 xbt_str_rtrim(loc_expr, ")");
1186 frame->frame_base = get_location(NULL, loc_expr);
1187 xbt_dynar_free(&split2);
1191 }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
1194 frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1196 }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
1199 frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1201 }else if(strcmp(node_type, "DW_AT_MIPS_linkage_name:") == 0){
1204 free(current_frame);
1205 frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1206 current_frame = strdup(frame->name);
1207 xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
1211 read = getline(&line, &n, fp);
1216 frame->start = strtoul(subprogram_start, NULL, 16);
1217 if(subprogram_end != NULL)
1218 frame->end = strtoul(subprogram_end, NULL, 16);
1219 xbt_dict_set(*all_variables, frame->name, frame, NULL);
1222 free(subprogram_start);
1223 if(subprogram_end != NULL){
1224 free(subprogram_end);
1225 subprogram_end = NULL;
1229 }else if(strcmp(node_type, "(DW_TAG_variable)") == 0){ /* New variable */
1231 dw_local_variable_t var = NULL;
1233 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1234 origin = strdup(strtok(NULL, "<"));
1235 xbt_str_rtrim(origin, ">:");
1237 read = getline(&line, &n, fp);
1242 read = getline(&line, &n, fp);
1246 /* Wipeout the new line character */
1247 line[read - 1] = '\0';
1249 if(strlen(line) == 0){
1250 read = getline(&line, &n, fp);
1254 xbt_dynar_free(&split);
1255 xbt_str_rtrim(line, NULL);
1256 xbt_str_strip_spaces(line);
1257 split = xbt_str_split(line, " ");
1259 node_type = xbt_dynar_get_as(split, 1, char *);
1261 if(strncmp(node_type, "DW_AT_", 6) != 0)
1264 if(strcmp(node_type, "DW_AT_name") == 0){
1267 var = xbt_new0(s_dw_local_variable_t, 1);
1268 var->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1270 xbt_dict_set(variables_origin, origin, var->name, NULL);
1272 }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
1275 abstract_origin = xbt_dynar_get_as(split, 2, char *);
1276 xbt_str_ltrim(abstract_origin, "<0x");
1277 xbt_str_rtrim(abstract_origin, ">");
1279 variable_name = (char *)xbt_dict_get_or_null(variables_origin, abstract_origin);
1280 variable_frame = get_frame_by_offset(*all_variables, strtoul(abstract_origin, NULL, 16));
1281 var = xbt_dict_get_or_null(variable_frame->variables, variable_name);
1283 }else if(strcmp(node_type, "DW_AT_location") == 0){
1285 if(valid_variable == 1 && var != NULL){
1287 var->location = xbt_new0(s_dw_location_t, 1);
1289 location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1291 if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
1293 var->location = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
1297 xbt_str_strip_spaces(line);
1298 split2 = xbt_str_split(line, "(");
1299 xbt_dynar_remove_at(split2, 0, NULL);
1300 loc_expr = xbt_str_join(split2, " ");
1301 xbt_str_rtrim(loc_expr, ")");
1302 var->location = get_location(NULL, loc_expr);
1303 xbt_dynar_free(&split2);
1309 }else if(strcmp(node_type, "DW_AT_external") == 0){
1315 read = getline(&line, &n, fp);
1319 if(new_variable == 1 && valid_variable == 1){
1321 variable_frame = xbt_dict_get_or_null(*all_variables, current_frame);
1322 xbt_dict_set(variable_frame->variables, var->name, var, NULL);
1328 }else if(strcmp(node_type, "(DW_TAG_inlined_subroutine)") == 0){
1330 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1331 origin = strdup(strtok(NULL, "<"));
1332 xbt_str_rtrim(origin, ">:");
1334 read = getline(&line, &n, fp);
1338 /* Wipeout the new line character */
1339 line[read - 1] = '\0';
1342 read = getline(&line, &n, fp);
1346 if(strlen(line) == 0){
1347 read = getline(&line, &n, fp);
1351 xbt_dynar_free(&split);
1352 xbt_str_rtrim(line, NULL);
1353 xbt_str_strip_spaces(line);
1354 split = xbt_str_split(line, " ");
1356 if(strncmp(xbt_dynar_get_as(split, 1, char *), "DW_AT_", 6) != 0)
1359 node_type = xbt_dynar_get_as(split, 1, char *);
1361 if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
1363 origin = xbt_dynar_get_as(split, 2, char *);
1364 xbt_str_ltrim(origin, "<0x");
1365 xbt_str_rtrim(origin, ">");
1367 subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, origin);
1368 subroutine_frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
1370 }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
1372 subroutine_frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1374 }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
1376 subroutine_frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1379 read = getline(&line, &n, fp);
1385 read = getline(&line, &n, fp);
1391 xbt_dynar_free(&split);
1398 static dw_location_t get_location(xbt_dict_t location_list, char *expr){
1400 dw_location_t loc = xbt_new0(s_dw_location_t, 1);
1402 if(location_list != NULL){
1404 char *key = bprintf("%d", (int)strtoul(expr, NULL, 16));
1405 loc->type = e_dw_loclist;
1406 loc->location.loclist = (xbt_dynar_t)xbt_dict_get_or_null(location_list, key);
1408 XBT_INFO("Key not found in loclist");
1414 char *tok = NULL, *tok2 = NULL;
1416 xbt_dynar_t tokens1 = xbt_str_split(expr, ";");
1417 xbt_dynar_t tokens2;
1419 loc->type = e_dw_compose;
1420 loc->location.compose = xbt_dynar_new(sizeof(dw_location_t), NULL);
1422 while(cursor < xbt_dynar_length(tokens1)){
1424 tok = xbt_dynar_get_as(tokens1, cursor, char*);
1425 tokens2 = xbt_str_split(tok, " ");
1426 tok2 = xbt_dynar_get_as(tokens2, 0, char*);
1428 if(strncmp(tok2, "DW_OP_reg", 9) == 0){
1429 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1430 new_element->type = e_dw_register;
1431 new_element->location.reg = atoi(strtok(tok2, "DW_OP_reg"));
1432 xbt_dynar_push(loc->location.compose, &new_element);
1433 }else if(strcmp(tok2, "DW_OP_fbreg:") == 0){
1434 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1435 new_element->type = e_dw_fbregister_op;
1436 new_element->location.fbreg_op = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1437 xbt_dynar_push(loc->location.compose, &new_element);
1438 }else if(strncmp(tok2, "DW_OP_breg", 10) == 0){
1439 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1440 new_element->type = e_dw_bregister_op;
1441 new_element->location.breg_op.reg = atoi(strtok(tok2, "DW_OP_breg"));
1442 new_element->location.breg_op.offset = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1443 xbt_dynar_push(loc->location.compose, &new_element);
1444 }else if(strncmp(tok2, "DW_OP_lit", 9) == 0){
1445 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1446 new_element->type = e_dw_lit;
1447 new_element->location.lit = atoi(strtok(tok2, "DW_OP_lit"));
1448 xbt_dynar_push(loc->location.compose, &new_element);
1449 }else if(strcmp(tok2, "DW_OP_piece:") == 0){
1450 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1451 new_element->type = e_dw_piece;
1452 new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1453 /*if(strlen(xbt_dynar_get_as(tokens2, 1, char*)) > 1)
1454 new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1456 new_element->location.piece = xbt_dynar_get_as(tokens2, 1, char*)[0] - '0';*/
1457 xbt_dynar_push(loc->location.compose, &new_element);
1458 }else if(strcmp(tok2, "DW_OP_plus_uconst:") == 0){
1459 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1460 new_element->type = e_dw_plus_uconst;
1461 new_element->location.plus_uconst = atoi(xbt_dynar_get_as(tokens2, 1, char *));
1462 xbt_dynar_push(loc->location.compose, &new_element);
1463 }else if(strcmp(tok, "DW_OP_abs") == 0 ||
1464 strcmp(tok, "DW_OP_and") == 0 ||
1465 strcmp(tok, "DW_OP_div") == 0 ||
1466 strcmp(tok, "DW_OP_minus") == 0 ||
1467 strcmp(tok, "DW_OP_mod") == 0 ||
1468 strcmp(tok, "DW_OP_mul") == 0 ||
1469 strcmp(tok, "DW_OP_neg") == 0 ||
1470 strcmp(tok, "DW_OP_not") == 0 ||
1471 strcmp(tok, "DW_OP_or") == 0 ||
1472 strcmp(tok, "DW_OP_plus") == 0){
1473 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1474 new_element->type = e_dw_arithmetic;
1475 new_element->location.arithmetic = strdup(strtok(tok2, "DW_OP_"));
1476 xbt_dynar_push(loc->location.compose, &new_element);
1477 }else if(strcmp(tok, "DW_OP_stack_value") == 0){
1478 }else if(strcmp(tok2, "DW_OP_deref_size:") == 0){
1479 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1480 new_element->type = e_dw_deref;
1481 new_element->location.deref_size = (unsigned int short) atoi(xbt_dynar_get_as(tokens2, 1, char*));
1482 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1483 new_element->location.deref_size = atoi(xbt_dynar_get_as(tokens, cursor, char*));
1485 new_element->location.deref_size = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
1486 xbt_dynar_push(loc->location.compose, &new_element);
1487 }else if(strcmp(tok, "DW_OP_deref") == 0){
1488 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1489 new_element->type = e_dw_deref;
1490 new_element->location.deref_size = sizeof(void *);
1491 xbt_dynar_push(loc->location.compose, &new_element);
1492 }else if(strcmp(tok2, "DW_OP_constu:") == 0){
1493 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1494 new_element->type = e_dw_uconstant;
1495 new_element->location.uconstant.bytes = 1;
1496 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1497 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1498 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens, cursor, char*)));
1500 new_element->location.uconstant.value = (unsigned long int)(xbt_dynar_get_as(tokens, cursor, char*)[0] - '0');*/
1501 xbt_dynar_push(loc->location.compose, &new_element);
1502 }else if(strcmp(tok2, "DW_OP_consts:") == 0){
1503 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1504 new_element->type = e_dw_sconstant;
1505 new_element->location.sconstant.bytes = 1;
1506 new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1507 xbt_dynar_push(loc->location.compose, &new_element);
1508 }else if(strcmp(tok2, "DW_OP_const1u:") == 0 ||
1509 strcmp(tok2, "DW_OP_const2u:") == 0 ||
1510 strcmp(tok2, "DW_OP_const4u:") == 0 ||
1511 strcmp(tok2, "DW_OP_const8u:") == 0){
1512 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1513 new_element->type = e_dw_uconstant;
1514 new_element->location.uconstant.bytes = tok2[11] - '0';
1515 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1516 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1517 new_element->location.constant.value = atoi(xbt_dynar_get_as(tokens, cursor, char*));
1519 new_element->location.constant.value = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
1520 xbt_dynar_push(loc->location.compose, &new_element);
1521 }else if(strcmp(tok, "DW_OP_const1s") == 0 ||
1522 strcmp(tok, "DW_OP_const2s") == 0 ||
1523 strcmp(tok, "DW_OP_const4s") == 0 ||
1524 strcmp(tok, "DW_OP_const8s") == 0){
1525 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1526 new_element->type = e_dw_sconstant;
1527 new_element->location.sconstant.bytes = tok2[11] - '0';
1528 new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1529 xbt_dynar_push(loc->location.compose, &new_element);
1531 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1532 new_element->type = e_dw_unsupported;
1533 xbt_dynar_push(loc->location.compose, &new_element);
1537 xbt_dynar_free(&tokens2);
1541 xbt_dynar_free(&tokens1);
1550 void print_local_variables(xbt_dict_t list){
1552 dw_location_entry_t entry;
1553 dw_location_t location_entry;
1554 unsigned int cursor3 = 0, cursor4 = 0;
1555 xbt_dict_cursor_t cursor = 0, cursor2 = 0;
1557 char *frame_name, *variable_name;
1558 dw_frame_t current_frame;
1559 dw_local_variable_t current_variable;
1561 xbt_dict_foreach(list, cursor, frame_name, current_frame){
1562 fprintf(stderr, "Frame name : %s\n", current_frame->name);
1563 fprintf(stderr, "Location type : %d\n", current_frame->frame_base->type);
1564 xbt_dict_foreach((xbt_dict_t)current_frame->variables, cursor2, variable_name, current_variable){
1565 fprintf(stderr, "Name : %s\n", current_variable->name);
1566 if(current_variable->location == NULL)
1568 fprintf(stderr, "Location type : %d\n", current_variable->location->type);
1569 switch(current_variable->location->type){
1571 xbt_dynar_foreach(current_variable->location->location.loclist, cursor3, entry){
1572 fprintf(stderr, "Lowpc : %lx, Highpc : %lx,", entry->lowpc, entry->highpc);
1573 switch(entry->location->type){
1574 case e_dw_register :
1575 fprintf(stderr, " Location : in register %d\n", entry->location->location.reg);
1577 case e_dw_bregister_op:
1578 fprintf(stderr, " Location : Add %d to the value in register %d\n", entry->location->location.breg_op.offset, entry->location->location.breg_op.reg);
1581 fprintf(stderr, "Value already kwnown : %d\n", entry->location->location.lit);
1583 case e_dw_fbregister_op:
1584 fprintf(stderr, " Location : %d bytes from logical frame pointer\n", entry->location->location.fbreg_op);
1587 fprintf(stderr, " Location :\n");
1588 xbt_dynar_foreach(entry->location->location.compose, cursor4, location_entry){
1589 switch(location_entry->type){
1590 case e_dw_register :
1591 fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
1593 case e_dw_bregister_op:
1594 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);
1597 fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
1599 case e_dw_fbregister_op:
1600 fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
1603 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);
1605 case e_dw_arithmetic :
1606 fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
1609 fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
1611 case e_dw_uconstant :
1612 fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
1614 case e_dw_sconstant :
1615 fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
1618 fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
1624 fprintf(stderr, "Location type not supported\n");
1631 fprintf(stderr, "Location :\n");
1632 xbt_dynar_foreach(current_variable->location->location.compose, cursor4, location_entry){
1633 switch(location_entry->type){
1634 case e_dw_register :
1635 fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
1637 case e_dw_bregister_op:
1638 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);
1641 fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
1643 case e_dw_fbregister_op:
1644 fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
1647 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);
1649 case e_dw_arithmetic :
1650 fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
1653 fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
1655 case e_dw_uconstant :
1656 fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
1658 case e_dw_sconstant :
1659 fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
1662 fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
1668 fprintf(stderr, "Location type not supported\n");
1676 static void MC_get_global_variables(char *elf_file){
1680 char *command = bprintf("objdump -t -j .data -j .bss %s", elf_file);
1682 fp = popen(command, "r");
1685 perror("popen failed");
1689 if(mc_global_variables == NULL)
1690 mc_global_variables = xbt_dynar_new(sizeof(global_variable_t), global_variable_free_voidp);
1696 xbt_dynar_t line_tokens = NULL;
1697 unsigned long offset;
1699 int type = strcmp(elf_file, xbt_binary_name); /* 0 = binary, other = libsimgrid */
1701 while ((read = getline(&line, &n, fp)) != -1){
1706 /* Wipeout the new line character */
1707 line[read - 1] = '\0';
1709 xbt_str_strip_spaces(line);
1710 xbt_str_ltrim(line, NULL);
1712 line_tokens = xbt_str_split(line, NULL);
1714 if(xbt_dynar_length(line_tokens) <= 4 || strcmp(xbt_dynar_get_as(line_tokens, 0, char *), "SYMBOL") == 0)
1717 if((strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "__gcov", 6) == 0)
1718 || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "gcov", 4) == 0)
1719 || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), ".data") == 0)
1720 || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), ".bss") == 0)
1721 || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "stderr", 6) == 0)
1722 || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "counter", 7) == 0)
1723 || ((size_t)strtoul(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 2, char*), NULL, 16) == 0))
1726 global_variable_t var = xbt_new0(s_global_variable_t, 1);
1729 var->address = (void *)strtoul(xbt_dynar_get_as(line_tokens, 0, char*), NULL, 16);
1731 offset = strtoul(xbt_dynar_get_as(line_tokens, 0, char*), NULL, 16);
1732 var->address = (char *)start_text_libsimgrid+offset;
1735 var->size = (size_t)strtoul(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 2, char*), NULL, 16);
1736 var->name = strdup(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*));
1738 if(data_bss_ignore_size(var->address) > 0)
1739 global_variable_free(var);
1741 xbt_dynar_push(mc_global_variables, &var);
1743 xbt_dynar_free(&line_tokens);
1753 void global_variable_free(global_variable_t v){
1758 void global_variable_free_voidp(void *v){
1759 global_variable_free((global_variable_t) * (void **) v);