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 "simgrid/sg_config.h"
12 #include "../surf/surf_private.h"
13 #include "../simix/smx_private.h"
14 #include "../xbt/mmalloc/mmprivate.h"
16 #include "mc_private.h"
17 #include "xbt/automaton.h"
20 XBT_LOG_NEW_CATEGORY(mc, "All MC categories");
21 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_global, mc,
22 "Logging specific to MC (global)");
24 /* Configuration support */
25 e_mc_reduce_t mc_reduce_kind=e_mc_reduce_unset;
27 int _sg_do_model_check = 0;
28 int _sg_mc_checkpoint=0;
29 char* _sg_mc_property_file=NULL;
31 int _sg_mc_max_depth=1000;
34 extern int _sg_init_status;
35 void _mc_cfg_cb_reduce(const char *name, int pos) {
36 if (_sg_init_status && !_sg_do_model_check) {
37 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.");
39 char *val= xbt_cfg_get_string(_sg_cfg_set, name);
40 if (!strcasecmp(val,"none")) {
41 mc_reduce_kind = e_mc_reduce_none;
42 } else if (!strcasecmp(val,"dpor")) {
43 mc_reduce_kind = e_mc_reduce_dpor;
45 xbt_die("configuration option %s can only take 'none' or 'dpor' as a value",name);
49 void _mc_cfg_cb_checkpoint(const char *name, int pos) {
50 if (_sg_init_status && !_sg_do_model_check) {
51 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.");
53 _sg_mc_checkpoint = xbt_cfg_get_int(_sg_cfg_set, name);
55 void _mc_cfg_cb_property(const char *name, int pos) {
56 if (_sg_init_status && !_sg_do_model_check) {
57 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.");
59 _sg_mc_property_file= xbt_cfg_get_string(_sg_cfg_set, name);
62 void _mc_cfg_cb_timeout(const char *name, int pos) {
63 if (_sg_init_status && !_sg_do_model_check) {
64 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.");
66 _sg_mc_timeout= xbt_cfg_get_int(_sg_cfg_set, name);
69 void _mc_cfg_cb_max_depth(const char *name, int pos) {
70 if (_sg_init_status && !_sg_do_model_check) {
71 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.");
73 _sg_mc_max_depth= xbt_cfg_get_int(_sg_cfg_set, name);
76 void _mc_cfg_cb_visited(const char *name, int pos) {
77 if (_sg_init_status && !_sg_do_model_check) {
78 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.");
80 _sg_mc_visited= xbt_cfg_get_int(_sg_cfg_set, name);
84 /* MC global data structures */
86 mc_state_t mc_current_state = NULL;
87 char mc_replay_mode = FALSE;
88 double *mc_time = NULL;
92 xbt_fifo_t mc_stack_safety = NULL;
93 mc_stats_t mc_stats = NULL;
94 mc_global_t initial_state_safety = NULL;
98 mc_stats_pair_t mc_stats_pair = NULL;
99 xbt_fifo_t mc_stack_liveness = NULL;
100 mc_global_t initial_state_liveness = NULL;
104 xbt_dict_t mc_local_variables = NULL;
106 xbt_dynar_t mc_global_variables = NULL;
108 /* Ignore mechanism */
109 xbt_dynar_t mc_stack_comparison_ignore;
110 xbt_dynar_t mc_data_bss_comparison_ignore;
111 extern xbt_dynar_t mc_heap_comparison_ignore;
112 extern xbt_dynar_t stacks_areas;
114 xbt_automaton_t _mc_property_automaton = NULL;
116 /* Static functions */
118 static void MC_assert_pair(int prop);
119 static dw_location_t get_location(xbt_dict_t location_list, char *expr);
120 static dw_frame_t get_frame_by_offset(xbt_dict_t all_variables, unsigned long int offset);
121 static size_t data_bss_ignore_size(void *address);
122 static void MC_get_global_variables(char *elf_file);
124 void MC_do_the_modelcheck_for_real() {
125 if (!_sg_mc_property_file || _sg_mc_property_file[0]=='\0') {
126 if (mc_reduce_kind==e_mc_reduce_unset)
127 mc_reduce_kind=e_mc_reduce_dpor;
129 XBT_INFO("Check a safety property");
130 MC_modelcheck_safety();
134 if (mc_reduce_kind==e_mc_reduce_unset)
135 mc_reduce_kind=e_mc_reduce_none;
137 XBT_INFO("Check the liveness property %s",_sg_mc_property_file);
138 MC_automaton_load(_sg_mc_property_file);
139 MC_modelcheck_liveness();
144 void MC_compare(void){
150 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
152 mc_time = xbt_new0(double, simix_process_maxpid);
154 /* mc_time refers to clock for each process -> ignore it for heap comparison */
156 for(i = 0; i<simix_process_maxpid; i++)
157 MC_ignore_heap(&(mc_time[i]), sizeof(double));
161 /* Initialize the data structures that must be persistent across every
162 iteration of the model-checker (in RAW memory) */
166 MC_init_memory_map_info();
168 mc_local_variables = xbt_dict_new_homogeneous(NULL);
170 /* Get local variables in binary for state equality detection */
171 xbt_dict_t binary_location_list = MC_get_location_list(xbt_binary_name);
172 MC_get_local_variables(xbt_binary_name, binary_location_list, &mc_local_variables);
174 /* Get local variables in libsimgrid for state equality detection */
175 xbt_dict_t libsimgrid_location_list = MC_get_location_list(libsimgrid_path);
176 MC_get_local_variables(libsimgrid_path, libsimgrid_location_list, &mc_local_variables);
178 /* Get .plt section (start and end addresses) for data libsimgrid and data program comparison */
179 get_libsimgrid_plt_section();
180 get_binary_plt_section();
182 MC_ignore_data_bss(&end_raw_heap, sizeof(end_raw_heap));
183 MC_ignore_data_bss(&nb_visited_states, sizeof(nb_visited_states));
185 /* Get global variables */
186 MC_get_global_variables(xbt_binary_name);
187 MC_get_global_variables(libsimgrid_path);
191 /* Ignore some variables from xbt/ex.h used by exception e for stacks comparison */
192 MC_ignore_stack("e", "*");
193 MC_ignore_stack("__ex_cleanup", "*");
194 MC_ignore_stack("__ex_mctx_en", "*");
195 MC_ignore_stack("__ex_mctx_me", "*");
196 MC_ignore_stack("__xbt_ex_ctx_ptr", "*");
197 MC_ignore_stack("_log_ev", "*");
198 MC_ignore_stack("_throw_ctx", "*");
199 MC_ignore_stack("ctx", "*");
201 MC_ignore_stack("next_context", "smx_ctx_sysv_suspend_serial");
202 MC_ignore_stack("i", "smx_ctx_sysv_suspend_serial");
209 void MC_modelcheck_safety(void)
211 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
213 /* Check if MC is already initialized */
214 if (initial_state_safety)
217 mc_time = xbt_new0(double, simix_process_maxpid);
219 /* Initialize the data structures that must be persistent across every
220 iteration of the model-checker (in RAW memory) */
224 /* Initialize statistics */
225 mc_stats = xbt_new0(s_mc_stats_t, 1);
226 mc_stats->state_size = 1;
228 /* Create exploration stack */
229 mc_stack_safety = xbt_fifo_new();
233 if(_sg_mc_visited > 0){
237 MC_init_memory_map_info();
238 get_libsimgrid_plt_section();
239 get_binary_plt_section();
246 /* Save the initial state */
247 initial_state_safety = xbt_new0(s_mc_global_t, 1);
248 initial_state_safety->snapshot = MC_take_snapshot();
259 void MC_modelcheck_liveness(){
261 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
267 /* Initialize statistics */
268 mc_stats_pair = xbt_new0(s_mc_stats_pair_t, 1);
270 /* Create exploration stack */
271 mc_stack_liveness = xbt_fifo_new();
273 initial_state_liveness = xbt_new0(s_mc_global_t, 1);
280 MC_print_statistics_pairs(mc_stats_pair);
297 int MC_random(int min, int max)
299 /*FIXME: return mc_current_state->executed_transition->random.value;*/
304 * \brief Schedules all the process that are ready to run
306 void MC_wait_for_requests(void)
308 smx_process_t process;
312 while (!xbt_dynar_is_empty(simix_global->process_to_run)) {
313 SIMIX_process_runall();
314 xbt_dynar_foreach(simix_global->process_that_ran, iter, process) {
315 req = &process->simcall;
316 if (req->call != SIMCALL_NONE && !MC_request_is_visible(req))
317 SIMIX_simcall_pre(req, 0);
322 int MC_deadlock_check()
324 int deadlock = FALSE;
325 smx_process_t process;
326 if(xbt_swag_size(simix_global->process_list)){
328 xbt_swag_foreach(process, simix_global->process_list){
329 if(process->simcall.call != SIMCALL_NONE
330 && MC_request_is_enabled(&process->simcall)){
340 * \brief Re-executes from the state at position start all the transitions indicated by
341 * a given model-checker stack.
342 * \param stack The stack with the transitions to execute.
343 * \param start Start index to begin the re-execution.
345 void MC_replay(xbt_fifo_t stack, int start)
347 int raw_mem = (mmalloc_get_current_heap() == raw_heap);
351 smx_simcall_t req = NULL, saved_req = NULL;
352 xbt_fifo_item_t item, start_item;
355 XBT_DEBUG("**** Begin Replay ****");
358 /* Restore the initial state */
359 MC_restore_snapshot(initial_state_safety->snapshot);
360 /* At the moment of taking the snapshot the raw heap was set, so restoring
361 * it will set it back again, we have to unset it to continue */
365 start_item = xbt_fifo_get_last_item(stack);
368 start_item = xbt_fifo_get_prev_item(start_item);
373 /* Traverse the stack from the state at position start and re-execute the transitions */
374 for (item = start_item;
375 item != xbt_fifo_get_first_item(stack);
376 item = xbt_fifo_get_prev_item(item)) {
378 state = (mc_state_t) xbt_fifo_get_item_content(item);
379 saved_req = MC_state_get_executed_request(state, &value);
382 /* because we got a copy of the executed request, we have to fetch the
383 real one, pointed by the request field of the issuer process */
384 req = &saved_req->issuer->simcall;
386 /* Debug information */
387 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
388 req_str = MC_request_to_string(req, value);
389 XBT_DEBUG("Replay: %s (%p)", req_str, state);
394 SIMIX_simcall_pre(req, value);
395 MC_wait_for_requests();
397 /* Update statistics */
398 mc_stats->visited_states++;
399 mc_stats->executed_transitions++;
401 XBT_DEBUG("**** End Replay ****");
411 void MC_replay_liveness(xbt_fifo_t stack, int all_stack)
414 initial_state_liveness->raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
418 smx_simcall_t req = NULL, saved_req = NULL;
419 xbt_fifo_item_t item;
421 mc_pair_stateless_t pair;
424 XBT_DEBUG("**** Begin Replay ****");
426 /* Restore the initial state */
427 MC_restore_snapshot(initial_state_liveness->snapshot);
429 /* At the moment of taking the snapshot the raw heap was set, so restoring
430 * it will set it back again, we have to unset it to continue */
431 if(!initial_state_liveness->raw_mem_set)
436 item = xbt_fifo_get_last_item(stack);
438 while(depth <= xbt_fifo_size(stack)){
440 pair = (mc_pair_stateless_t) xbt_fifo_get_item_content(item);
441 state = (mc_state_t) pair->graph_state;
443 if(pair->requests > 0){
445 saved_req = MC_state_get_executed_request(state, &value);
446 //XBT_DEBUG("SavedReq->call %u", saved_req->call);
448 if(saved_req != NULL){
449 /* because we got a copy of the executed request, we have to fetch the
450 real one, pointed by the request field of the issuer process */
451 req = &saved_req->issuer->simcall;
452 //XBT_DEBUG("Req->call %u", req->call);
454 /* Debug information */
455 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
456 req_str = MC_request_to_string(req, value);
457 XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
463 SIMIX_simcall_pre(req, value);
464 MC_wait_for_requests();
469 /* Update statistics */
470 mc_stats_pair->visited_pairs++;
472 item = xbt_fifo_get_prev_item(item);
477 /* Traverse the stack from the initial state and re-execute the transitions */
478 for (item = xbt_fifo_get_last_item(stack);
479 item != xbt_fifo_get_first_item(stack);
480 item = xbt_fifo_get_prev_item(item)) {
482 pair = (mc_pair_stateless_t) xbt_fifo_get_item_content(item);
483 state = (mc_state_t) pair->graph_state;
485 if(pair->requests > 0){
487 saved_req = MC_state_get_executed_request(state, &value);
488 //XBT_DEBUG("SavedReq->call %u", saved_req->call);
490 if(saved_req != NULL){
491 /* because we got a copy of the executed request, we have to fetch the
492 real one, pointed by the request field of the issuer process */
493 req = &saved_req->issuer->simcall;
494 //XBT_DEBUG("Req->call %u", req->call);
496 /* Debug information */
497 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
498 req_str = MC_request_to_string(req, value);
499 XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
505 SIMIX_simcall_pre(req, value);
506 MC_wait_for_requests();
511 /* Update statistics */
512 mc_stats_pair->visited_pairs++;
516 XBT_DEBUG("**** End Replay ****");
518 if(initial_state_liveness->raw_mem_set)
526 * \brief Dumps the contents of a model-checker's stack and shows the actual
528 * \param stack The stack to dump
530 void MC_dump_stack_safety(xbt_fifo_t stack)
533 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
535 MC_show_stack_safety(stack);
537 if(!_sg_mc_checkpoint){
542 while ((state = (mc_state_t) xbt_fifo_pop(stack)) != NULL)
543 MC_state_delete(state);
556 void MC_show_stack_safety(xbt_fifo_t stack)
560 xbt_fifo_item_t item;
562 char *req_str = NULL;
564 for (item = xbt_fifo_get_last_item(stack);
565 (item ? (state = (mc_state_t) (xbt_fifo_get_item_content(item)))
566 : (NULL)); item = xbt_fifo_get_prev_item(item)) {
567 req = MC_state_get_executed_request(state, &value);
569 req_str = MC_request_to_string(req, value);
570 XBT_INFO("%s", req_str);
576 void MC_show_deadlock(smx_simcall_t req)
578 /*char *req_str = NULL;*/
579 XBT_INFO("**************************");
580 XBT_INFO("*** DEAD-LOCK DETECTED ***");
581 XBT_INFO("**************************");
582 XBT_INFO("Locked request:");
583 /*req_str = MC_request_to_string(req);
584 XBT_INFO("%s", req_str);
586 XBT_INFO("Counter-example execution trace:");
587 MC_dump_stack_safety(mc_stack_safety);
591 void MC_show_stack_liveness(xbt_fifo_t stack){
593 mc_pair_stateless_t pair;
594 xbt_fifo_item_t item;
596 char *req_str = NULL;
598 for (item = xbt_fifo_get_last_item(stack);
599 (item ? (pair = (mc_pair_stateless_t) (xbt_fifo_get_item_content(item)))
600 : (NULL)); item = xbt_fifo_get_prev_item(item)) {
601 req = MC_state_get_executed_request(pair->graph_state, &value);
603 if(pair->requests>0){
604 req_str = MC_request_to_string(req, value);
605 XBT_INFO("%s", req_str);
608 XBT_INFO("End of system requests but evolution in Büchi automaton");
614 void MC_dump_stack_liveness(xbt_fifo_t stack){
616 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
618 mc_pair_stateless_t pair;
621 while ((pair = (mc_pair_stateless_t) xbt_fifo_pop(stack)) != NULL)
622 pair_stateless_free(pair);
631 void MC_print_statistics(mc_stats_t stats)
633 //XBT_INFO("State space size ~= %lu", stats->state_size);
634 XBT_INFO("Expanded states = %lu", stats->expanded_states);
635 XBT_INFO("Visited states = %lu", stats->visited_states);
636 XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
637 XBT_INFO("Expanded / Visited = %lf",
638 (double) stats->visited_states / stats->expanded_states);
639 /*XBT_INFO("Exploration coverage = %lf",
640 (double)stats->expanded_states / stats->state_size); */
643 void MC_print_statistics_pairs(mc_stats_pair_t stats)
645 XBT_INFO("Expanded pairs = %lu", stats->expanded_pairs);
646 XBT_INFO("Visited pairs = %lu", stats->visited_pairs);
647 //XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
648 XBT_INFO("Expanded / Visited = %lf",
649 (double) stats->visited_pairs / stats->expanded_pairs);
651 if(mmalloc_get_current_heap() == raw_heap)
655 void MC_assert(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_dump_stack_safety(mc_stack_safety);
663 MC_print_statistics(mc_stats);
668 static void MC_assert_pair(int prop){
669 if (MC_is_active() && !prop) {
670 XBT_INFO("**************************");
671 XBT_INFO("*** PROPERTY NOT VALID ***");
672 XBT_INFO("**************************");
673 //XBT_INFO("Counter-example execution trace:");
674 MC_show_stack_liveness(mc_stack_liveness);
675 //MC_dump_snapshot_stack(mc_snapshot_stack);
676 MC_print_statistics_pairs(mc_stats_pair);
681 void MC_process_clock_add(smx_process_t process, double amount)
683 mc_time[process->pid] += amount;
686 double MC_process_clock_get(smx_process_t process)
690 return mc_time[process->pid];
698 void MC_automaton_load(const char *file){
700 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
704 if (_mc_property_automaton == NULL)
705 _mc_property_automaton = xbt_automaton_new();
707 xbt_automaton_load(_mc_property_automaton,file);
716 void MC_automaton_new_propositional_symbol(const char* id, void* fct) {
718 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
722 if (_mc_property_automaton == NULL)
723 _mc_property_automaton = xbt_automaton_new();
725 xbt_new_propositional_symbol(_mc_property_automaton,id,fct);
734 /************ MC_ignore ***********/
736 void MC_ignore_heap(void *address, size_t size){
738 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
742 if(mc_heap_comparison_ignore == NULL)
743 mc_heap_comparison_ignore = xbt_dynar_new(sizeof(mc_heap_ignore_region_t), NULL);
745 mc_heap_ignore_region_t region = NULL;
746 region = xbt_new0(s_mc_heap_ignore_region_t, 1);
747 region->address = address;
750 if((address >= std_heap) && (address <= (void*)((char *)std_heap + STD_HEAP_SIZE))){
752 region->block = ((char*)address - (char*)((xbt_mheap_t)std_heap)->heapbase) / BLOCKSIZE + 1;
754 if(((xbt_mheap_t)std_heap)->heapinfo[region->block].type == 0){
755 region->fragment = -1;
757 region->fragment = ((uintptr_t) (ADDR2UINT (address) % (BLOCKSIZE))) >> ((xbt_mheap_t)std_heap)->heapinfo[region->block].type;
762 unsigned int cursor = 0;
763 mc_heap_ignore_region_t current_region;
764 xbt_dynar_foreach(mc_heap_comparison_ignore, cursor, current_region){
765 if(current_region->address > address)
769 xbt_dynar_insert_at(mc_heap_comparison_ignore, cursor, ®ion);
777 void MC_ignore_data_bss(void *address, size_t size){
779 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
783 if(mc_data_bss_comparison_ignore == NULL)
784 mc_data_bss_comparison_ignore = xbt_dynar_new(sizeof(mc_data_bss_ignore_variable_t), NULL);
786 if(xbt_dynar_is_empty(mc_data_bss_comparison_ignore)){
788 mc_data_bss_ignore_variable_t var = NULL;
789 var = xbt_new0(s_mc_data_bss_ignore_variable_t, 1);
790 var->address = address;
793 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, 0, &var);
797 unsigned int cursor = 0;
799 int end = xbt_dynar_length(mc_data_bss_comparison_ignore) - 1;
800 mc_data_bss_ignore_variable_t current_var = NULL;
803 cursor = (start + end) / 2;
804 current_var = (mc_data_bss_ignore_variable_t)xbt_dynar_get_as(mc_data_bss_comparison_ignore, cursor, mc_data_bss_ignore_variable_t);
805 if(current_var->address == address){
811 if(current_var->address < address)
813 if(current_var->address > address)
817 mc_data_bss_ignore_variable_t var = NULL;
818 var = xbt_new0(s_mc_data_bss_ignore_variable_t, 1);
819 var->address = address;
822 if(current_var->address < address)
823 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, cursor + 1, &var);
825 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, cursor, &var);
835 static size_t data_bss_ignore_size(void *address){
836 unsigned int cursor = 0;
838 int end = xbt_dynar_length(mc_data_bss_comparison_ignore) - 1;
839 mc_data_bss_ignore_variable_t var;
842 cursor = (start + end) / 2;
843 var = (mc_data_bss_ignore_variable_t)xbt_dynar_get_as(mc_data_bss_comparison_ignore, cursor, mc_data_bss_ignore_variable_t);
844 if(var->address == address)
846 if(var->address < address){
847 if((void *)((char *)var->address + var->size) > address)
848 return (char *)var->address + var->size - (char*)address;
852 if(var->address > address)
861 void MC_ignore_stack(const char *var_name, const char *frame){
863 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
867 if(mc_stack_comparison_ignore == NULL)
868 mc_stack_comparison_ignore = xbt_dynar_new(sizeof(mc_stack_ignore_variable_t), NULL);
870 if(xbt_dynar_is_empty(mc_stack_comparison_ignore)){
872 mc_stack_ignore_variable_t var = NULL;
873 var = xbt_new0(s_mc_stack_ignore_variable_t, 1);
874 var->var_name = strdup(var_name);
875 var->frame = strdup(frame);
877 xbt_dynar_insert_at(mc_stack_comparison_ignore, 0, &var);
881 unsigned int cursor = 0;
883 int end = xbt_dynar_length(mc_stack_comparison_ignore) - 1;
884 mc_stack_ignore_variable_t current_var = NULL;
887 cursor = (start + end) / 2;
888 current_var = (mc_stack_ignore_variable_t)xbt_dynar_get_as(mc_stack_comparison_ignore, cursor, mc_stack_ignore_variable_t);
889 if(strcmp(current_var->frame, frame) == 0){
890 if(strcmp(current_var->var_name, var_name) == 0){
896 if(strcmp(current_var->var_name, var_name) < 0)
898 if(strcmp(current_var->var_name, var_name) > 0)
901 if(strcmp(current_var->frame, frame) < 0)
903 if(strcmp(current_var->frame, frame) > 0)
907 mc_stack_ignore_variable_t var = NULL;
908 var = xbt_new0(s_mc_stack_ignore_variable_t, 1);
909 var->var_name = strdup(var_name);
910 var->frame = strdup(frame);
912 if(strcmp(current_var->frame, frame) < 0)
913 xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor + 1, &var);
915 xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor, &var);
926 void MC_new_stack_area(void *stack, char *name, void* context, size_t size){
928 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
931 if(stacks_areas == NULL)
932 stacks_areas = xbt_dynar_new(sizeof(stack_region_t), NULL);
934 stack_region_t region = NULL;
935 region = xbt_new0(s_stack_region_t, 1);
936 region->address = stack;
937 region->process_name = strdup(name);
938 region->context = context;
940 xbt_dynar_push(stacks_areas, ®ion);
948 /************ DWARF ***********/
950 xbt_dict_t MC_get_location_list(const char *elf_file){
952 char *command = bprintf("objdump -Wo %s", elf_file);
954 FILE *fp = popen(command, "r");
957 perror("popen for objdump failed");
961 int debug = 0; /*Detect if the program has been compiled with -g */
963 xbt_dict_t location_list = xbt_dict_new_homogeneous(NULL);
964 char *line = NULL, *loc_expr = NULL;
968 xbt_dynar_t split = NULL;
970 while ((read = getline(&line, &n, fp)) != -1) {
972 /* Wipeout the new line character */
973 line[read - 1] = '\0';
975 xbt_str_trim(line, NULL);
980 if(strlen(line) == 0)
985 if(strncmp(line, elf_file, strlen(elf_file)) == 0)
988 if(strncmp(line, "Contents", 8) == 0)
991 if(strncmp(line, "Offset", 6) == 0){
998 XBT_INFO("Your program must be compiled with -g");
1002 xbt_dynar_t loclist = xbt_dynar_new(sizeof(dw_location_entry_t), NULL);
1004 xbt_str_strip_spaces(line);
1005 split = xbt_str_split(line, " ");
1007 while(read != -1 && strcmp("<End", (char *)xbt_dynar_get_as(split, 1, char *)) != 0){
1009 dw_location_entry_t new_entry = xbt_new0(s_dw_location_entry_t, 1);
1010 new_entry->lowpc = strtoul((char *)xbt_dynar_get_as(split, 1, char *), NULL, 16);
1011 new_entry->highpc = strtoul((char *)xbt_dynar_get_as(split, 2, char *), NULL, 16);
1014 while(cursor_remove < 3){
1015 xbt_dynar_remove_at(split, 0, NULL);
1019 loc_expr = xbt_str_join(split, " ");
1020 xbt_str_ltrim(loc_expr, "(");
1021 xbt_str_rtrim(loc_expr, ")");
1022 new_entry->location = get_location(NULL, loc_expr);
1024 xbt_dynar_push(loclist, &new_entry);
1026 xbt_dynar_free(&split);
1029 read = getline(&line, &n, fp);
1031 line[read - 1] = '\0';
1032 xbt_str_strip_spaces(line);
1033 split = xbt_str_split(line, " ");
1039 char *key = bprintf("%d", (int)strtoul((char *)xbt_dynar_get_as(split, 0, char *), NULL, 16));
1040 xbt_dict_set(location_list, key, loclist, NULL);
1042 xbt_dynar_free(&split);
1050 return location_list;
1053 static dw_frame_t get_frame_by_offset(xbt_dict_t all_variables, unsigned long int offset){
1055 xbt_dict_cursor_t cursor = NULL;
1059 xbt_dict_foreach(all_variables, cursor, name, res) {
1060 if(offset >= res->start && offset < res->end)
1068 void MC_get_local_variables(const char *elf_file, xbt_dict_t location_list, xbt_dict_t *all_variables){
1070 char *command = bprintf("objdump -Wi %s", elf_file);
1072 FILE *fp = popen(command, "r");
1075 perror("popen for objdump failed");
1077 char *line = NULL, *origin, *abstract_origin, *current_frame = NULL;
1080 int valid_variable = 1;
1081 char *node_type = NULL, *location_type = NULL, *variable_name = NULL, *loc_expr = NULL;
1082 xbt_dynar_t split = NULL, split2 = NULL;
1084 xbt_dict_t variables_origin = xbt_dict_new_homogeneous(NULL);
1085 xbt_dict_t subprograms_origin = xbt_dict_new_homogeneous(NULL);
1086 char *subprogram_name = NULL, *subprogram_start = NULL, *subprogram_end = NULL;
1087 int new_frame = 0, new_variable = 0;
1088 dw_frame_t variable_frame, subroutine_frame = NULL;
1090 read = getline(&line, &n, fp);
1092 while (read != -1) {
1095 read = getline(&line, &n, fp);
1099 /* Wipeout the new line character */
1100 line[read - 1] = '\0';
1102 if(strlen(line) == 0){
1103 read = getline(&line, &n, fp);
1107 xbt_str_ltrim(line, NULL);
1108 xbt_str_strip_spaces(line);
1111 read = getline(&line, &n, fp);
1115 xbt_dynar_free(&split);
1116 split = xbt_str_split(line, " ");
1119 node_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1121 if(strcmp(node_type, "(DW_TAG_subprogram)") == 0){ /* New frame */
1123 dw_frame_t frame = NULL;
1125 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1126 subprogram_start = strdup(strtok(NULL, "<"));
1127 xbt_str_rtrim(subprogram_start, ">:");
1129 read = getline(&line, &n, fp);
1134 read = getline(&line, &n, fp);
1138 /* Wipeout the new line character */
1139 line[read - 1] = '\0';
1141 if(strlen(line) == 0){
1142 read = getline(&line, &n, fp);
1146 xbt_dynar_free(&split);
1147 xbt_str_rtrim(line, NULL);
1148 xbt_str_strip_spaces(line);
1149 split = xbt_str_split(line, " ");
1151 node_type = xbt_dynar_get_as(split, 1, char *);
1153 if(strncmp(node_type, "DW_AT_", 6) != 0)
1156 if(strcmp(node_type, "DW_AT_sibling") == 0){
1158 subprogram_end = strdup(xbt_dynar_get_as(split, 3, char*));
1159 xbt_str_ltrim(subprogram_end, "<0x");
1160 xbt_str_rtrim(subprogram_end, ">");
1162 }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){ /* Frame already in dict */
1165 abstract_origin = strdup(xbt_dynar_get_as(split, 2, char*));
1166 xbt_str_ltrim(abstract_origin, "<0x");
1167 xbt_str_rtrim(abstract_origin, ">");
1168 subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, abstract_origin);
1169 frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
1171 }else if(strcmp(node_type, "DW_AT_name") == 0){
1174 free(current_frame);
1175 frame = xbt_new0(s_dw_frame_t, 1);
1176 frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1177 frame->variables = xbt_dict_new_homogeneous(NULL);
1178 frame->frame_base = xbt_new0(s_dw_location_t, 1);
1179 current_frame = strdup(frame->name);
1181 xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
1183 }else if(strcmp(node_type, "DW_AT_frame_base") == 0){
1185 location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1187 if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
1189 frame->frame_base = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
1193 xbt_str_strip_spaces(line);
1194 split2 = xbt_str_split(line, "(");
1195 xbt_dynar_remove_at(split2, 0, NULL);
1196 loc_expr = xbt_str_join(split2, " ");
1197 xbt_str_rtrim(loc_expr, ")");
1198 frame->frame_base = get_location(NULL, loc_expr);
1199 xbt_dynar_free(&split2);
1203 }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
1206 frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1208 }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
1211 frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1213 }else if(strcmp(node_type, "DW_AT_MIPS_linkage_name:") == 0){
1216 free(current_frame);
1217 frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1218 current_frame = strdup(frame->name);
1219 xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
1223 read = getline(&line, &n, fp);
1228 frame->start = strtoul(subprogram_start, NULL, 16);
1229 if(subprogram_end != NULL)
1230 frame->end = strtoul(subprogram_end, NULL, 16);
1231 xbt_dict_set(*all_variables, frame->name, frame, NULL);
1234 free(subprogram_start);
1235 if(subprogram_end != NULL){
1236 free(subprogram_end);
1237 subprogram_end = NULL;
1241 }else if(strcmp(node_type, "(DW_TAG_variable)") == 0){ /* New variable */
1243 dw_local_variable_t var = NULL;
1245 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1246 origin = strdup(strtok(NULL, "<"));
1247 xbt_str_rtrim(origin, ">:");
1249 read = getline(&line, &n, fp);
1254 read = getline(&line, &n, fp);
1258 /* Wipeout the new line character */
1259 line[read - 1] = '\0';
1261 if(strlen(line) == 0){
1262 read = getline(&line, &n, fp);
1266 xbt_dynar_free(&split);
1267 xbt_str_rtrim(line, NULL);
1268 xbt_str_strip_spaces(line);
1269 split = xbt_str_split(line, " ");
1271 node_type = xbt_dynar_get_as(split, 1, char *);
1273 if(strncmp(node_type, "DW_AT_", 6) != 0)
1276 if(strcmp(node_type, "DW_AT_name") == 0){
1279 var = xbt_new0(s_dw_local_variable_t, 1);
1280 var->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1282 xbt_dict_set(variables_origin, origin, var->name, NULL);
1284 }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
1287 abstract_origin = xbt_dynar_get_as(split, 2, char *);
1288 xbt_str_ltrim(abstract_origin, "<0x");
1289 xbt_str_rtrim(abstract_origin, ">");
1291 variable_name = (char *)xbt_dict_get_or_null(variables_origin, abstract_origin);
1292 variable_frame = get_frame_by_offset(*all_variables, strtoul(abstract_origin, NULL, 16));
1293 var = xbt_dict_get_or_null(variable_frame->variables, variable_name);
1295 }else if(strcmp(node_type, "DW_AT_location") == 0){
1297 if(valid_variable == 1 && var != NULL){
1299 var->location = xbt_new0(s_dw_location_t, 1);
1301 location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1303 if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
1305 var->location = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
1309 xbt_str_strip_spaces(line);
1310 split2 = xbt_str_split(line, "(");
1311 xbt_dynar_remove_at(split2, 0, NULL);
1312 loc_expr = xbt_str_join(split2, " ");
1313 xbt_str_rtrim(loc_expr, ")");
1314 var->location = get_location(NULL, loc_expr);
1315 xbt_dynar_free(&split2);
1321 }else if(strcmp(node_type, "DW_AT_external") == 0){
1327 read = getline(&line, &n, fp);
1331 if(new_variable == 1 && valid_variable == 1){
1333 variable_frame = xbt_dict_get_or_null(*all_variables, current_frame);
1334 xbt_dict_set(variable_frame->variables, var->name, var, NULL);
1340 }else if(strcmp(node_type, "(DW_TAG_inlined_subroutine)") == 0){
1342 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1343 origin = strdup(strtok(NULL, "<"));
1344 xbt_str_rtrim(origin, ">:");
1346 read = getline(&line, &n, fp);
1350 /* Wipeout the new line character */
1351 line[read - 1] = '\0';
1354 read = getline(&line, &n, fp);
1358 if(strlen(line) == 0){
1359 read = getline(&line, &n, fp);
1363 xbt_dynar_free(&split);
1364 xbt_str_rtrim(line, NULL);
1365 xbt_str_strip_spaces(line);
1366 split = xbt_str_split(line, " ");
1368 if(strncmp(xbt_dynar_get_as(split, 1, char *), "DW_AT_", 6) != 0)
1371 node_type = xbt_dynar_get_as(split, 1, char *);
1373 if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
1375 origin = xbt_dynar_get_as(split, 2, char *);
1376 xbt_str_ltrim(origin, "<0x");
1377 xbt_str_rtrim(origin, ">");
1379 subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, origin);
1380 subroutine_frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
1382 }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
1384 subroutine_frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1386 }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
1388 subroutine_frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1391 read = getline(&line, &n, fp);
1397 read = getline(&line, &n, fp);
1403 xbt_dynar_free(&split);
1410 static dw_location_t get_location(xbt_dict_t location_list, char *expr){
1412 dw_location_t loc = xbt_new0(s_dw_location_t, 1);
1414 if(location_list != NULL){
1416 char *key = bprintf("%d", (int)strtoul(expr, NULL, 16));
1417 loc->type = e_dw_loclist;
1418 loc->location.loclist = (xbt_dynar_t)xbt_dict_get_or_null(location_list, key);
1420 XBT_INFO("Key not found in loclist");
1426 char *tok = NULL, *tok2 = NULL;
1428 xbt_dynar_t tokens1 = xbt_str_split(expr, ";");
1429 xbt_dynar_t tokens2;
1431 loc->type = e_dw_compose;
1432 loc->location.compose = xbt_dynar_new(sizeof(dw_location_t), NULL);
1434 while(cursor < xbt_dynar_length(tokens1)){
1436 tok = xbt_dynar_get_as(tokens1, cursor, char*);
1437 tokens2 = xbt_str_split(tok, " ");
1438 tok2 = xbt_dynar_get_as(tokens2, 0, char*);
1440 if(strncmp(tok2, "DW_OP_reg", 9) == 0){
1441 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1442 new_element->type = e_dw_register;
1443 new_element->location.reg = atoi(strtok(tok2, "DW_OP_reg"));
1444 xbt_dynar_push(loc->location.compose, &new_element);
1445 }else if(strcmp(tok2, "DW_OP_fbreg:") == 0){
1446 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1447 new_element->type = e_dw_fbregister_op;
1448 new_element->location.fbreg_op = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1449 xbt_dynar_push(loc->location.compose, &new_element);
1450 }else if(strncmp(tok2, "DW_OP_breg", 10) == 0){
1451 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1452 new_element->type = e_dw_bregister_op;
1453 new_element->location.breg_op.reg = atoi(strtok(tok2, "DW_OP_breg"));
1454 new_element->location.breg_op.offset = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1455 xbt_dynar_push(loc->location.compose, &new_element);
1456 }else if(strncmp(tok2, "DW_OP_lit", 9) == 0){
1457 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1458 new_element->type = e_dw_lit;
1459 new_element->location.lit = atoi(strtok(tok2, "DW_OP_lit"));
1460 xbt_dynar_push(loc->location.compose, &new_element);
1461 }else if(strcmp(tok2, "DW_OP_piece:") == 0){
1462 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1463 new_element->type = e_dw_piece;
1464 new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1465 /*if(strlen(xbt_dynar_get_as(tokens2, 1, char*)) > 1)
1466 new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1468 new_element->location.piece = xbt_dynar_get_as(tokens2, 1, char*)[0] - '0';*/
1469 xbt_dynar_push(loc->location.compose, &new_element);
1470 }else if(strcmp(tok2, "DW_OP_plus_uconst:") == 0){
1471 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1472 new_element->type = e_dw_plus_uconst;
1473 new_element->location.plus_uconst = atoi(xbt_dynar_get_as(tokens2, 1, char *));
1474 xbt_dynar_push(loc->location.compose, &new_element);
1475 }else if(strcmp(tok, "DW_OP_abs") == 0 ||
1476 strcmp(tok, "DW_OP_and") == 0 ||
1477 strcmp(tok, "DW_OP_div") == 0 ||
1478 strcmp(tok, "DW_OP_minus") == 0 ||
1479 strcmp(tok, "DW_OP_mod") == 0 ||
1480 strcmp(tok, "DW_OP_mul") == 0 ||
1481 strcmp(tok, "DW_OP_neg") == 0 ||
1482 strcmp(tok, "DW_OP_not") == 0 ||
1483 strcmp(tok, "DW_OP_or") == 0 ||
1484 strcmp(tok, "DW_OP_plus") == 0){
1485 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1486 new_element->type = e_dw_arithmetic;
1487 new_element->location.arithmetic = strdup(strtok(tok2, "DW_OP_"));
1488 xbt_dynar_push(loc->location.compose, &new_element);
1489 }else if(strcmp(tok, "DW_OP_stack_value") == 0){
1490 }else if(strcmp(tok2, "DW_OP_deref_size:") == 0){
1491 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1492 new_element->type = e_dw_deref;
1493 new_element->location.deref_size = (unsigned int short) atoi(xbt_dynar_get_as(tokens2, 1, char*));
1494 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1495 new_element->location.deref_size = atoi(xbt_dynar_get_as(tokens, cursor, char*));
1497 new_element->location.deref_size = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
1498 xbt_dynar_push(loc->location.compose, &new_element);
1499 }else if(strcmp(tok, "DW_OP_deref") == 0){
1500 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1501 new_element->type = e_dw_deref;
1502 new_element->location.deref_size = sizeof(void *);
1503 xbt_dynar_push(loc->location.compose, &new_element);
1504 }else if(strcmp(tok2, "DW_OP_constu:") == 0){
1505 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1506 new_element->type = e_dw_uconstant;
1507 new_element->location.uconstant.bytes = 1;
1508 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1509 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1510 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens, cursor, char*)));
1512 new_element->location.uconstant.value = (unsigned long int)(xbt_dynar_get_as(tokens, cursor, char*)[0] - '0');*/
1513 xbt_dynar_push(loc->location.compose, &new_element);
1514 }else if(strcmp(tok2, "DW_OP_consts:") == 0){
1515 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1516 new_element->type = e_dw_sconstant;
1517 new_element->location.sconstant.bytes = 1;
1518 new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1519 xbt_dynar_push(loc->location.compose, &new_element);
1520 }else if(strcmp(tok2, "DW_OP_const1u:") == 0 ||
1521 strcmp(tok2, "DW_OP_const2u:") == 0 ||
1522 strcmp(tok2, "DW_OP_const4u:") == 0 ||
1523 strcmp(tok2, "DW_OP_const8u:") == 0){
1524 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1525 new_element->type = e_dw_uconstant;
1526 new_element->location.uconstant.bytes = tok2[11] - '0';
1527 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1528 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1529 new_element->location.constant.value = atoi(xbt_dynar_get_as(tokens, cursor, char*));
1531 new_element->location.constant.value = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
1532 xbt_dynar_push(loc->location.compose, &new_element);
1533 }else if(strcmp(tok, "DW_OP_const1s") == 0 ||
1534 strcmp(tok, "DW_OP_const2s") == 0 ||
1535 strcmp(tok, "DW_OP_const4s") == 0 ||
1536 strcmp(tok, "DW_OP_const8s") == 0){
1537 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1538 new_element->type = e_dw_sconstant;
1539 new_element->location.sconstant.bytes = tok2[11] - '0';
1540 new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1541 xbt_dynar_push(loc->location.compose, &new_element);
1543 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1544 new_element->type = e_dw_unsupported;
1545 xbt_dynar_push(loc->location.compose, &new_element);
1549 xbt_dynar_free(&tokens2);
1553 xbt_dynar_free(&tokens1);
1562 void print_local_variables(xbt_dict_t list){
1564 dw_location_entry_t entry;
1565 dw_location_t location_entry;
1566 unsigned int cursor3 = 0, cursor4 = 0;
1567 xbt_dict_cursor_t cursor = 0, cursor2 = 0;
1569 char *frame_name, *variable_name;
1570 dw_frame_t current_frame;
1571 dw_local_variable_t current_variable;
1573 xbt_dict_foreach(list, cursor, frame_name, current_frame){
1574 fprintf(stderr, "Frame name : %s\n", current_frame->name);
1575 fprintf(stderr, "Location type : %d\n", current_frame->frame_base->type);
1576 xbt_dict_foreach((xbt_dict_t)current_frame->variables, cursor2, variable_name, current_variable){
1577 fprintf(stderr, "Name : %s\n", current_variable->name);
1578 if(current_variable->location == NULL)
1580 fprintf(stderr, "Location type : %d\n", current_variable->location->type);
1581 switch(current_variable->location->type){
1583 xbt_dynar_foreach(current_variable->location->location.loclist, cursor3, entry){
1584 fprintf(stderr, "Lowpc : %lx, Highpc : %lx,", entry->lowpc, entry->highpc);
1585 switch(entry->location->type){
1586 case e_dw_register :
1587 fprintf(stderr, " Location : in register %d\n", entry->location->location.reg);
1589 case e_dw_bregister_op:
1590 fprintf(stderr, " Location : Add %d to the value in register %d\n", entry->location->location.breg_op.offset, entry->location->location.breg_op.reg);
1593 fprintf(stderr, "Value already kwnown : %d\n", entry->location->location.lit);
1595 case e_dw_fbregister_op:
1596 fprintf(stderr, " Location : %d bytes from logical frame pointer\n", entry->location->location.fbreg_op);
1599 fprintf(stderr, " Location :\n");
1600 xbt_dynar_foreach(entry->location->location.compose, cursor4, location_entry){
1601 switch(location_entry->type){
1602 case e_dw_register :
1603 fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
1605 case e_dw_bregister_op:
1606 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);
1609 fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
1611 case e_dw_fbregister_op:
1612 fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
1615 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);
1617 case e_dw_arithmetic :
1618 fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
1621 fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
1623 case e_dw_uconstant :
1624 fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
1626 case e_dw_sconstant :
1627 fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
1630 fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
1636 fprintf(stderr, "Location type not supported\n");
1643 fprintf(stderr, "Location :\n");
1644 xbt_dynar_foreach(current_variable->location->location.compose, cursor4, location_entry){
1645 switch(location_entry->type){
1646 case e_dw_register :
1647 fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
1649 case e_dw_bregister_op:
1650 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);
1653 fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
1655 case e_dw_fbregister_op:
1656 fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
1659 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);
1661 case e_dw_arithmetic :
1662 fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
1665 fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
1667 case e_dw_uconstant :
1668 fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
1670 case e_dw_sconstant :
1671 fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
1674 fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
1680 fprintf(stderr, "Location type not supported\n");
1688 static void MC_get_global_variables(char *elf_file){
1692 char *command = bprintf("objdump -t -j .data -j .bss %s", elf_file);
1694 fp = popen(command, "r");
1697 perror("popen failed");
1701 if(mc_global_variables == NULL)
1702 mc_global_variables = xbt_dynar_new(sizeof(global_variable_t), global_variable_free_voidp);
1708 xbt_dynar_t line_tokens = NULL;
1709 unsigned long offset;
1711 int type = strcmp(elf_file, xbt_binary_name); /* 0 = binary, other = libsimgrid */
1713 while ((read = getline(&line, &n, fp)) != -1){
1718 /* Wipeout the new line character */
1719 line[read - 1] = '\0';
1721 xbt_str_strip_spaces(line);
1722 xbt_str_ltrim(line, NULL);
1724 line_tokens = xbt_str_split(line, NULL);
1726 if(xbt_dynar_length(line_tokens) <= 4 || strcmp(xbt_dynar_get_as(line_tokens, 0, char *), "SYMBOL") == 0)
1729 if((strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "__gcov", 6) == 0)
1730 || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "gcov", 4) == 0)
1731 || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), ".data") == 0)
1732 || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), ".bss") == 0)
1733 || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "stderr", 6) == 0)
1734 || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "counter", 7) == 0)
1735 || ((size_t)strtoul(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 2, char*), NULL, 16) == 0))
1738 global_variable_t var = xbt_new0(s_global_variable_t, 1);
1741 var->address = (void *)strtoul(xbt_dynar_get_as(line_tokens, 0, char*), NULL, 16);
1743 offset = strtoul(xbt_dynar_get_as(line_tokens, 0, char*), NULL, 16);
1744 var->address = (char *)start_text_libsimgrid+offset;
1747 var->size = (size_t)strtoul(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 2, char*), NULL, 16);
1748 var->name = strdup(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*));
1750 if(data_bss_ignore_size(var->address) > 0)
1751 global_variable_free(var);
1753 xbt_dynar_push(mc_global_variables, &var);
1755 xbt_dynar_free(&line_tokens);
1765 void global_variable_free(global_variable_t v){
1770 void global_variable_free_voidp(void *v){
1771 global_variable_free((global_variable_t) * (void **) v);