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);
296 int MC_random(int min, int max)
298 /*FIXME: return mc_current_state->executed_transition->random.value;*/
303 * \brief Schedules all the process that are ready to run
305 void MC_wait_for_requests(void)
307 smx_process_t process;
311 while (!xbt_dynar_is_empty(simix_global->process_to_run)) {
312 SIMIX_process_runall();
313 xbt_dynar_foreach(simix_global->process_that_ran, iter, process) {
314 req = &process->simcall;
315 if (req->call != SIMCALL_NONE && !MC_request_is_visible(req))
316 SIMIX_simcall_pre(req, 0);
321 int MC_deadlock_check()
323 int deadlock = FALSE;
324 smx_process_t process;
325 if(xbt_swag_size(simix_global->process_list)){
327 xbt_swag_foreach(process, simix_global->process_list){
328 if(process->simcall.call != SIMCALL_NONE
329 && MC_request_is_enabled(&process->simcall)){
339 * \brief Re-executes from the state at position start all the transitions indicated by
340 * a given model-checker stack.
341 * \param stack The stack with the transitions to execute.
342 * \param start Start index to begin the re-execution.
344 void MC_replay(xbt_fifo_t stack, int start)
346 int raw_mem = (mmalloc_get_current_heap() == raw_heap);
350 smx_simcall_t req = NULL, saved_req = NULL;
351 xbt_fifo_item_t item, start_item;
354 XBT_DEBUG("**** Begin Replay ****");
357 /* Restore the initial state */
358 MC_restore_snapshot(initial_state_safety->snapshot);
359 /* At the moment of taking the snapshot the raw heap was set, so restoring
360 * it will set it back again, we have to unset it to continue */
364 start_item = xbt_fifo_get_last_item(stack);
367 start_item = xbt_fifo_get_prev_item(start_item);
372 /* Traverse the stack from the state at position start and re-execute the transitions */
373 for (item = start_item;
374 item != xbt_fifo_get_first_item(stack);
375 item = xbt_fifo_get_prev_item(item)) {
377 state = (mc_state_t) xbt_fifo_get_item_content(item);
378 saved_req = MC_state_get_executed_request(state, &value);
381 /* because we got a copy of the executed request, we have to fetch the
382 real one, pointed by the request field of the issuer process */
383 req = &saved_req->issuer->simcall;
385 /* Debug information */
386 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
387 req_str = MC_request_to_string(req, value);
388 XBT_DEBUG("Replay: %s (%p)", req_str, state);
393 SIMIX_simcall_pre(req, value);
394 MC_wait_for_requests();
396 /* Update statistics */
397 mc_stats->visited_states++;
398 mc_stats->executed_transitions++;
400 XBT_DEBUG("**** End Replay ****");
410 void MC_replay_liveness(xbt_fifo_t stack, int all_stack)
413 initial_state_liveness->raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
417 smx_simcall_t req = NULL, saved_req = NULL;
418 xbt_fifo_item_t item;
420 mc_pair_stateless_t pair;
423 XBT_DEBUG("**** Begin Replay ****");
425 /* Restore the initial state */
426 MC_restore_snapshot(initial_state_liveness->snapshot);
428 /* At the moment of taking the snapshot the raw heap was set, so restoring
429 * it will set it back again, we have to unset it to continue */
430 if(!initial_state_liveness->raw_mem_set)
435 item = xbt_fifo_get_last_item(stack);
437 while(depth <= xbt_fifo_size(stack)){
439 pair = (mc_pair_stateless_t) xbt_fifo_get_item_content(item);
440 state = (mc_state_t) pair->graph_state;
442 if(pair->requests > 0){
444 saved_req = MC_state_get_executed_request(state, &value);
445 //XBT_DEBUG("SavedReq->call %u", saved_req->call);
447 if(saved_req != NULL){
448 /* because we got a copy of the executed request, we have to fetch the
449 real one, pointed by the request field of the issuer process */
450 req = &saved_req->issuer->simcall;
451 //XBT_DEBUG("Req->call %u", req->call);
453 /* Debug information */
454 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
455 req_str = MC_request_to_string(req, value);
456 XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
462 SIMIX_simcall_pre(req, value);
463 MC_wait_for_requests();
468 /* Update statistics */
469 mc_stats_pair->visited_pairs++;
471 item = xbt_fifo_get_prev_item(item);
476 /* Traverse the stack from the initial state and re-execute the transitions */
477 for (item = xbt_fifo_get_last_item(stack);
478 item != xbt_fifo_get_first_item(stack);
479 item = xbt_fifo_get_prev_item(item)) {
481 pair = (mc_pair_stateless_t) xbt_fifo_get_item_content(item);
482 state = (mc_state_t) pair->graph_state;
484 if(pair->requests > 0){
486 saved_req = MC_state_get_executed_request(state, &value);
487 //XBT_DEBUG("SavedReq->call %u", saved_req->call);
489 if(saved_req != NULL){
490 /* because we got a copy of the executed request, we have to fetch the
491 real one, pointed by the request field of the issuer process */
492 req = &saved_req->issuer->simcall;
493 //XBT_DEBUG("Req->call %u", req->call);
495 /* Debug information */
496 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
497 req_str = MC_request_to_string(req, value);
498 XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
504 SIMIX_simcall_pre(req, value);
505 MC_wait_for_requests();
510 /* Update statistics */
511 mc_stats_pair->visited_pairs++;
515 XBT_DEBUG("**** End Replay ****");
517 if(initial_state_liveness->raw_mem_set)
525 * \brief Dumps the contents of a model-checker's stack and shows the actual
527 * \param stack The stack to dump
529 void MC_dump_stack_safety(xbt_fifo_t stack)
532 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
534 MC_show_stack_safety(stack);
536 if(!_sg_mc_checkpoint){
541 while ((state = (mc_state_t) xbt_fifo_pop(stack)) != NULL)
542 MC_state_delete(state);
555 void MC_show_stack_safety(xbt_fifo_t stack)
559 xbt_fifo_item_t item;
561 char *req_str = NULL;
563 for (item = xbt_fifo_get_last_item(stack);
564 (item ? (state = (mc_state_t) (xbt_fifo_get_item_content(item)))
565 : (NULL)); item = xbt_fifo_get_prev_item(item)) {
566 req = MC_state_get_executed_request(state, &value);
568 req_str = MC_request_to_string(req, value);
569 XBT_INFO("%s", req_str);
575 void MC_show_deadlock(smx_simcall_t req)
577 /*char *req_str = NULL;*/
578 XBT_INFO("**************************");
579 XBT_INFO("*** DEAD-LOCK DETECTED ***");
580 XBT_INFO("**************************");
581 XBT_INFO("Locked request:");
582 /*req_str = MC_request_to_string(req);
583 XBT_INFO("%s", req_str);
585 XBT_INFO("Counter-example execution trace:");
586 MC_dump_stack_safety(mc_stack_safety);
590 void MC_show_stack_liveness(xbt_fifo_t stack){
592 mc_pair_stateless_t pair;
593 xbt_fifo_item_t item;
595 char *req_str = NULL;
597 for (item = xbt_fifo_get_last_item(stack);
598 (item ? (pair = (mc_pair_stateless_t) (xbt_fifo_get_item_content(item)))
599 : (NULL)); item = xbt_fifo_get_prev_item(item)) {
600 req = MC_state_get_executed_request(pair->graph_state, &value);
602 if(pair->requests>0){
603 req_str = MC_request_to_string(req, value);
604 XBT_INFO("%s", req_str);
607 XBT_INFO("End of system requests but evolution in Büchi automaton");
613 void MC_dump_stack_liveness(xbt_fifo_t stack){
615 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
617 mc_pair_stateless_t pair;
620 while ((pair = (mc_pair_stateless_t) xbt_fifo_pop(stack)) != NULL)
621 pair_stateless_free(pair);
630 void MC_print_statistics(mc_stats_t stats)
632 //XBT_INFO("State space size ~= %lu", stats->state_size);
633 XBT_INFO("Expanded states = %lu", stats->expanded_states);
634 XBT_INFO("Visited states = %lu", stats->visited_states);
635 XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
636 XBT_INFO("Expanded / Visited = %lf",
637 (double) stats->visited_states / stats->expanded_states);
638 /*XBT_INFO("Exploration coverage = %lf",
639 (double)stats->expanded_states / stats->state_size); */
642 void MC_print_statistics_pairs(mc_stats_pair_t stats)
644 XBT_INFO("Expanded pairs = %lu", stats->expanded_pairs);
645 XBT_INFO("Visited pairs = %lu", stats->visited_pairs);
646 //XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
647 XBT_INFO("Expanded / Visited = %lf",
648 (double) stats->visited_pairs / stats->expanded_pairs);
650 if(mmalloc_get_current_heap() == raw_heap)
654 void MC_assert(int prop)
656 if (MC_is_active() && !prop){
657 XBT_INFO("**************************");
658 XBT_INFO("*** PROPERTY NOT VALID ***");
659 XBT_INFO("**************************");
660 XBT_INFO("Counter-example execution trace:");
661 MC_dump_stack_safety(mc_stack_safety);
662 MC_print_statistics(mc_stats);
667 static void MC_assert_pair(int prop){
668 if (MC_is_active() && !prop) {
669 XBT_INFO("**************************");
670 XBT_INFO("*** PROPERTY NOT VALID ***");
671 XBT_INFO("**************************");
672 //XBT_INFO("Counter-example execution trace:");
673 MC_show_stack_liveness(mc_stack_liveness);
674 //MC_dump_snapshot_stack(mc_snapshot_stack);
675 MC_print_statistics_pairs(mc_stats_pair);
680 void MC_process_clock_add(smx_process_t process, double amount)
682 mc_time[process->pid] += amount;
685 double MC_process_clock_get(smx_process_t process)
689 return mc_time[process->pid];
697 void MC_automaton_load(const char *file){
699 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
703 if (_mc_property_automaton == NULL)
704 _mc_property_automaton = xbt_automaton_new();
706 xbt_automaton_load(_mc_property_automaton,file);
715 void MC_automaton_new_propositional_symbol(const char* id, void* fct) {
717 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
721 if (_mc_property_automaton == NULL)
722 _mc_property_automaton = xbt_automaton_new();
724 xbt_new_propositional_symbol(_mc_property_automaton,id,fct);
733 /************ MC_ignore ***********/
735 void MC_ignore_heap(void *address, size_t size){
737 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
741 if(mc_heap_comparison_ignore == NULL)
742 mc_heap_comparison_ignore = xbt_dynar_new(sizeof(mc_heap_ignore_region_t), NULL);
744 mc_heap_ignore_region_t region = NULL;
745 region = xbt_new0(s_mc_heap_ignore_region_t, 1);
746 region->address = address;
749 if((address >= std_heap) && (address <= (void*)((char *)std_heap + STD_HEAP_SIZE))){
751 region->block = ((char*)address - (char*)((xbt_mheap_t)std_heap)->heapbase) / BLOCKSIZE + 1;
753 if(((xbt_mheap_t)std_heap)->heapinfo[region->block].type == 0){
754 region->fragment = -1;
756 region->fragment = ((uintptr_t) (ADDR2UINT (address) % (BLOCKSIZE))) >> ((xbt_mheap_t)std_heap)->heapinfo[region->block].type;
761 unsigned int cursor = 0;
762 mc_heap_ignore_region_t current_region;
763 xbt_dynar_foreach(mc_heap_comparison_ignore, cursor, current_region){
764 if(current_region->address > address)
768 xbt_dynar_insert_at(mc_heap_comparison_ignore, cursor, ®ion);
776 void MC_ignore_data_bss(void *address, size_t size){
778 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
782 if(mc_data_bss_comparison_ignore == NULL)
783 mc_data_bss_comparison_ignore = xbt_dynar_new(sizeof(mc_data_bss_ignore_variable_t), NULL);
785 if(xbt_dynar_is_empty(mc_data_bss_comparison_ignore)){
787 mc_data_bss_ignore_variable_t var = NULL;
788 var = xbt_new0(s_mc_data_bss_ignore_variable_t, 1);
789 var->address = address;
792 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, 0, &var);
796 unsigned int cursor = 0;
798 int end = xbt_dynar_length(mc_data_bss_comparison_ignore) - 1;
799 mc_data_bss_ignore_variable_t current_var = NULL;
802 cursor = (start + end) / 2;
803 current_var = (mc_data_bss_ignore_variable_t)xbt_dynar_get_as(mc_data_bss_comparison_ignore, cursor, mc_data_bss_ignore_variable_t);
804 if(current_var->address == address){
810 if(current_var->address < address)
812 if(current_var->address > address)
816 mc_data_bss_ignore_variable_t var = NULL;
817 var = xbt_new0(s_mc_data_bss_ignore_variable_t, 1);
818 var->address = address;
821 if(current_var->address < address)
822 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, cursor + 1, &var);
824 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, cursor, &var);
834 static size_t data_bss_ignore_size(void *address){
835 unsigned int cursor = 0;
837 int end = xbt_dynar_length(mc_data_bss_comparison_ignore) - 1;
838 mc_data_bss_ignore_variable_t var;
841 cursor = (start + end) / 2;
842 var = (mc_data_bss_ignore_variable_t)xbt_dynar_get_as(mc_data_bss_comparison_ignore, cursor, mc_data_bss_ignore_variable_t);
843 if(var->address == address)
845 if(var->address < address){
846 if((void *)((char *)var->address + var->size) > address)
847 return (char *)var->address + var->size - (char*)address;
851 if(var->address > address)
860 void MC_ignore_stack(const char *var_name, const char *frame){
862 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
866 if(mc_stack_comparison_ignore == NULL)
867 mc_stack_comparison_ignore = xbt_dynar_new(sizeof(mc_stack_ignore_variable_t), NULL);
869 if(xbt_dynar_is_empty(mc_stack_comparison_ignore)){
871 mc_stack_ignore_variable_t var = NULL;
872 var = xbt_new0(s_mc_stack_ignore_variable_t, 1);
873 var->var_name = strdup(var_name);
874 var->frame = strdup(frame);
876 xbt_dynar_insert_at(mc_stack_comparison_ignore, 0, &var);
880 unsigned int cursor = 0;
882 int end = xbt_dynar_length(mc_stack_comparison_ignore) - 1;
883 mc_stack_ignore_variable_t current_var = NULL;
886 cursor = (start + end) / 2;
887 current_var = (mc_stack_ignore_variable_t)xbt_dynar_get_as(mc_stack_comparison_ignore, cursor, mc_stack_ignore_variable_t);
888 if(strcmp(current_var->frame, frame) == 0){
889 if(strcmp(current_var->var_name, var_name) == 0){
895 if(strcmp(current_var->var_name, var_name) < 0)
897 if(strcmp(current_var->var_name, var_name) > 0)
900 if(strcmp(current_var->frame, frame) < 0)
902 if(strcmp(current_var->frame, frame) > 0)
906 mc_stack_ignore_variable_t var = NULL;
907 var = xbt_new0(s_mc_stack_ignore_variable_t, 1);
908 var->var_name = strdup(var_name);
909 var->frame = strdup(frame);
911 if(strcmp(current_var->frame, frame) < 0)
912 xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor + 1, &var);
914 xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor, &var);
925 void MC_new_stack_area(void *stack, char *name, void* context, size_t size){
927 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
930 if(stacks_areas == NULL)
931 stacks_areas = xbt_dynar_new(sizeof(stack_region_t), NULL);
933 stack_region_t region = NULL;
934 region = xbt_new0(s_stack_region_t, 1);
935 region->address = stack;
936 region->process_name = strdup(name);
937 region->context = context;
939 xbt_dynar_push(stacks_areas, ®ion);
947 /************ DWARF ***********/
949 xbt_dict_t MC_get_location_list(const char *elf_file){
951 char *command = bprintf("objdump -Wo %s", elf_file);
953 FILE *fp = popen(command, "r");
956 perror("popen for objdump failed");
960 int debug = 0; /*Detect if the program has been compiled with -g */
962 xbt_dict_t location_list = xbt_dict_new_homogeneous(NULL);
963 char *line = NULL, *loc_expr = NULL;
967 xbt_dynar_t split = NULL;
969 while ((read = getline(&line, &n, fp)) != -1) {
971 /* Wipeout the new line character */
972 line[read - 1] = '\0';
974 xbt_str_trim(line, NULL);
979 if(strlen(line) == 0)
984 if(strncmp(line, elf_file, strlen(elf_file)) == 0)
987 if(strncmp(line, "Contents", 8) == 0)
990 if(strncmp(line, "Offset", 6) == 0){
997 XBT_INFO("Your program must be compiled with -g");
1001 xbt_dynar_t loclist = xbt_dynar_new(sizeof(dw_location_entry_t), NULL);
1003 xbt_str_strip_spaces(line);
1004 split = xbt_str_split(line, " ");
1006 while(read != -1 && strcmp("<End", (char *)xbt_dynar_get_as(split, 1, char *)) != 0){
1008 dw_location_entry_t new_entry = xbt_new0(s_dw_location_entry_t, 1);
1009 new_entry->lowpc = strtoul((char *)xbt_dynar_get_as(split, 1, char *), NULL, 16);
1010 new_entry->highpc = strtoul((char *)xbt_dynar_get_as(split, 2, char *), NULL, 16);
1013 while(cursor_remove < 3){
1014 xbt_dynar_remove_at(split, 0, NULL);
1018 loc_expr = xbt_str_join(split, " ");
1019 xbt_str_ltrim(loc_expr, "(");
1020 xbt_str_rtrim(loc_expr, ")");
1021 new_entry->location = get_location(NULL, loc_expr);
1023 xbt_dynar_push(loclist, &new_entry);
1025 xbt_dynar_free(&split);
1028 read = getline(&line, &n, fp);
1030 line[read - 1] = '\0';
1031 xbt_str_strip_spaces(line);
1032 split = xbt_str_split(line, " ");
1038 char *key = bprintf("%d", (int)strtoul((char *)xbt_dynar_get_as(split, 0, char *), NULL, 16));
1039 xbt_dict_set(location_list, key, loclist, NULL);
1041 xbt_dynar_free(&split);
1049 return location_list;
1052 static dw_frame_t get_frame_by_offset(xbt_dict_t all_variables, unsigned long int offset){
1054 xbt_dict_cursor_t cursor = NULL;
1058 xbt_dict_foreach(all_variables, cursor, name, res) {
1059 if(offset >= res->start && offset < res->end)
1067 void MC_get_local_variables(const char *elf_file, xbt_dict_t location_list, xbt_dict_t *all_variables){
1069 char *command = bprintf("objdump -Wi %s", elf_file);
1071 FILE *fp = popen(command, "r");
1074 perror("popen for objdump failed");
1076 char *line = NULL, *origin, *abstract_origin, *current_frame = NULL;
1079 int valid_variable = 1;
1080 char *node_type = NULL, *location_type = NULL, *variable_name = NULL, *loc_expr = NULL;
1081 xbt_dynar_t split = NULL, split2 = NULL;
1083 xbt_dict_t variables_origin = xbt_dict_new_homogeneous(NULL);
1084 xbt_dict_t subprograms_origin = xbt_dict_new_homogeneous(NULL);
1085 char *subprogram_name = NULL, *subprogram_start = NULL, *subprogram_end = NULL;
1086 int new_frame = 0, new_variable = 0;
1087 dw_frame_t variable_frame, subroutine_frame = NULL;
1089 read = getline(&line, &n, fp);
1091 while (read != -1) {
1094 read = getline(&line, &n, fp);
1098 /* Wipeout the new line character */
1099 line[read - 1] = '\0';
1101 if(strlen(line) == 0){
1102 read = getline(&line, &n, fp);
1106 xbt_str_ltrim(line, NULL);
1107 xbt_str_strip_spaces(line);
1110 read = getline(&line, &n, fp);
1114 xbt_dynar_free(&split);
1115 split = xbt_str_split(line, " ");
1118 node_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1120 if(strcmp(node_type, "(DW_TAG_subprogram)") == 0){ /* New frame */
1122 dw_frame_t frame = NULL;
1124 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1125 subprogram_start = strdup(strtok(NULL, "<"));
1126 xbt_str_rtrim(subprogram_start, ">:");
1128 read = getline(&line, &n, fp);
1133 read = getline(&line, &n, fp);
1137 /* Wipeout the new line character */
1138 line[read - 1] = '\0';
1140 if(strlen(line) == 0){
1141 read = getline(&line, &n, fp);
1145 xbt_dynar_free(&split);
1146 xbt_str_rtrim(line, NULL);
1147 xbt_str_strip_spaces(line);
1148 split = xbt_str_split(line, " ");
1150 node_type = xbt_dynar_get_as(split, 1, char *);
1152 if(strncmp(node_type, "DW_AT_", 6) != 0)
1155 if(strcmp(node_type, "DW_AT_sibling") == 0){
1157 subprogram_end = strdup(xbt_dynar_get_as(split, 3, char*));
1158 xbt_str_ltrim(subprogram_end, "<0x");
1159 xbt_str_rtrim(subprogram_end, ">");
1161 }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){ /* Frame already in dict */
1164 abstract_origin = strdup(xbt_dynar_get_as(split, 2, char*));
1165 xbt_str_ltrim(abstract_origin, "<0x");
1166 xbt_str_rtrim(abstract_origin, ">");
1167 subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, abstract_origin);
1168 frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
1170 }else if(strcmp(node_type, "DW_AT_name") == 0){
1173 free(current_frame);
1174 frame = xbt_new0(s_dw_frame_t, 1);
1175 frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1176 frame->variables = xbt_dict_new_homogeneous(NULL);
1177 frame->frame_base = xbt_new0(s_dw_location_t, 1);
1178 current_frame = strdup(frame->name);
1180 xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
1182 }else if(strcmp(node_type, "DW_AT_frame_base") == 0){
1184 location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1186 if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
1188 frame->frame_base = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
1192 xbt_str_strip_spaces(line);
1193 split2 = xbt_str_split(line, "(");
1194 xbt_dynar_remove_at(split2, 0, NULL);
1195 loc_expr = xbt_str_join(split2, " ");
1196 xbt_str_rtrim(loc_expr, ")");
1197 frame->frame_base = get_location(NULL, loc_expr);
1198 xbt_dynar_free(&split2);
1202 }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
1205 frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1207 }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
1210 frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1212 }else if(strcmp(node_type, "DW_AT_MIPS_linkage_name:") == 0){
1215 free(current_frame);
1216 frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1217 current_frame = strdup(frame->name);
1218 xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
1222 read = getline(&line, &n, fp);
1227 frame->start = strtoul(subprogram_start, NULL, 16);
1228 if(subprogram_end != NULL)
1229 frame->end = strtoul(subprogram_end, NULL, 16);
1230 xbt_dict_set(*all_variables, frame->name, frame, NULL);
1233 free(subprogram_start);
1234 if(subprogram_end != NULL){
1235 free(subprogram_end);
1236 subprogram_end = NULL;
1240 }else if(strcmp(node_type, "(DW_TAG_variable)") == 0){ /* New variable */
1242 dw_local_variable_t var = NULL;
1244 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1245 origin = strdup(strtok(NULL, "<"));
1246 xbt_str_rtrim(origin, ">:");
1248 read = getline(&line, &n, fp);
1253 read = getline(&line, &n, fp);
1257 /* Wipeout the new line character */
1258 line[read - 1] = '\0';
1260 if(strlen(line) == 0){
1261 read = getline(&line, &n, fp);
1265 xbt_dynar_free(&split);
1266 xbt_str_rtrim(line, NULL);
1267 xbt_str_strip_spaces(line);
1268 split = xbt_str_split(line, " ");
1270 node_type = xbt_dynar_get_as(split, 1, char *);
1272 if(strncmp(node_type, "DW_AT_", 6) != 0)
1275 if(strcmp(node_type, "DW_AT_name") == 0){
1278 var = xbt_new0(s_dw_local_variable_t, 1);
1279 var->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1281 xbt_dict_set(variables_origin, origin, var->name, NULL);
1283 }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
1286 abstract_origin = xbt_dynar_get_as(split, 2, char *);
1287 xbt_str_ltrim(abstract_origin, "<0x");
1288 xbt_str_rtrim(abstract_origin, ">");
1290 variable_name = (char *)xbt_dict_get_or_null(variables_origin, abstract_origin);
1291 variable_frame = get_frame_by_offset(*all_variables, strtoul(abstract_origin, NULL, 16));
1292 var = xbt_dict_get_or_null(variable_frame->variables, variable_name);
1294 }else if(strcmp(node_type, "DW_AT_location") == 0){
1296 if(valid_variable == 1 && var != NULL){
1298 var->location = xbt_new0(s_dw_location_t, 1);
1300 location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1302 if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
1304 var->location = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
1308 xbt_str_strip_spaces(line);
1309 split2 = xbt_str_split(line, "(");
1310 xbt_dynar_remove_at(split2, 0, NULL);
1311 loc_expr = xbt_str_join(split2, " ");
1312 xbt_str_rtrim(loc_expr, ")");
1313 var->location = get_location(NULL, loc_expr);
1314 xbt_dynar_free(&split2);
1320 }else if(strcmp(node_type, "DW_AT_external") == 0){
1326 read = getline(&line, &n, fp);
1330 if(new_variable == 1 && valid_variable == 1){
1332 variable_frame = xbt_dict_get_or_null(*all_variables, current_frame);
1333 xbt_dict_set(variable_frame->variables, var->name, var, NULL);
1339 }else if(strcmp(node_type, "(DW_TAG_inlined_subroutine)") == 0){
1341 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1342 origin = strdup(strtok(NULL, "<"));
1343 xbt_str_rtrim(origin, ">:");
1345 read = getline(&line, &n, fp);
1349 /* Wipeout the new line character */
1350 line[read - 1] = '\0';
1353 read = getline(&line, &n, fp);
1357 if(strlen(line) == 0){
1358 read = getline(&line, &n, fp);
1362 xbt_dynar_free(&split);
1363 xbt_str_rtrim(line, NULL);
1364 xbt_str_strip_spaces(line);
1365 split = xbt_str_split(line, " ");
1367 if(strncmp(xbt_dynar_get_as(split, 1, char *), "DW_AT_", 6) != 0)
1370 node_type = xbt_dynar_get_as(split, 1, char *);
1372 if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
1374 origin = xbt_dynar_get_as(split, 2, char *);
1375 xbt_str_ltrim(origin, "<0x");
1376 xbt_str_rtrim(origin, ">");
1378 subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, origin);
1379 subroutine_frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
1381 }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
1383 subroutine_frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1385 }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
1387 subroutine_frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1390 read = getline(&line, &n, fp);
1396 read = getline(&line, &n, fp);
1402 xbt_dynar_free(&split);
1409 static dw_location_t get_location(xbt_dict_t location_list, char *expr){
1411 dw_location_t loc = xbt_new0(s_dw_location_t, 1);
1413 if(location_list != NULL){
1415 char *key = bprintf("%d", (int)strtoul(expr, NULL, 16));
1416 loc->type = e_dw_loclist;
1417 loc->location.loclist = (xbt_dynar_t)xbt_dict_get_or_null(location_list, key);
1419 XBT_INFO("Key not found in loclist");
1425 char *tok = NULL, *tok2 = NULL;
1427 xbt_dynar_t tokens1 = xbt_str_split(expr, ";");
1428 xbt_dynar_t tokens2;
1430 loc->type = e_dw_compose;
1431 loc->location.compose = xbt_dynar_new(sizeof(dw_location_t), NULL);
1433 while(cursor < xbt_dynar_length(tokens1)){
1435 tok = xbt_dynar_get_as(tokens1, cursor, char*);
1436 tokens2 = xbt_str_split(tok, " ");
1437 tok2 = xbt_dynar_get_as(tokens2, 0, char*);
1439 if(strncmp(tok2, "DW_OP_reg", 9) == 0){
1440 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1441 new_element->type = e_dw_register;
1442 new_element->location.reg = atoi(strtok(tok2, "DW_OP_reg"));
1443 xbt_dynar_push(loc->location.compose, &new_element);
1444 }else if(strcmp(tok2, "DW_OP_fbreg:") == 0){
1445 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1446 new_element->type = e_dw_fbregister_op;
1447 new_element->location.fbreg_op = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1448 xbt_dynar_push(loc->location.compose, &new_element);
1449 }else if(strncmp(tok2, "DW_OP_breg", 10) == 0){
1450 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1451 new_element->type = e_dw_bregister_op;
1452 new_element->location.breg_op.reg = atoi(strtok(tok2, "DW_OP_breg"));
1453 new_element->location.breg_op.offset = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1454 xbt_dynar_push(loc->location.compose, &new_element);
1455 }else if(strncmp(tok2, "DW_OP_lit", 9) == 0){
1456 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1457 new_element->type = e_dw_lit;
1458 new_element->location.lit = atoi(strtok(tok2, "DW_OP_lit"));
1459 xbt_dynar_push(loc->location.compose, &new_element);
1460 }else if(strcmp(tok2, "DW_OP_piece:") == 0){
1461 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1462 new_element->type = e_dw_piece;
1463 new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1464 /*if(strlen(xbt_dynar_get_as(tokens2, 1, char*)) > 1)
1465 new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1467 new_element->location.piece = xbt_dynar_get_as(tokens2, 1, char*)[0] - '0';*/
1468 xbt_dynar_push(loc->location.compose, &new_element);
1469 }else if(strcmp(tok2, "DW_OP_plus_uconst:") == 0){
1470 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1471 new_element->type = e_dw_plus_uconst;
1472 new_element->location.plus_uconst = atoi(xbt_dynar_get_as(tokens2, 1, char *));
1473 xbt_dynar_push(loc->location.compose, &new_element);
1474 }else if(strcmp(tok, "DW_OP_abs") == 0 ||
1475 strcmp(tok, "DW_OP_and") == 0 ||
1476 strcmp(tok, "DW_OP_div") == 0 ||
1477 strcmp(tok, "DW_OP_minus") == 0 ||
1478 strcmp(tok, "DW_OP_mod") == 0 ||
1479 strcmp(tok, "DW_OP_mul") == 0 ||
1480 strcmp(tok, "DW_OP_neg") == 0 ||
1481 strcmp(tok, "DW_OP_not") == 0 ||
1482 strcmp(tok, "DW_OP_or") == 0 ||
1483 strcmp(tok, "DW_OP_plus") == 0){
1484 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1485 new_element->type = e_dw_arithmetic;
1486 new_element->location.arithmetic = strdup(strtok(tok2, "DW_OP_"));
1487 xbt_dynar_push(loc->location.compose, &new_element);
1488 }else if(strcmp(tok, "DW_OP_stack_value") == 0){
1489 }else if(strcmp(tok2, "DW_OP_deref_size:") == 0){
1490 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1491 new_element->type = e_dw_deref;
1492 new_element->location.deref_size = (unsigned int short) atoi(xbt_dynar_get_as(tokens2, 1, char*));
1493 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1494 new_element->location.deref_size = atoi(xbt_dynar_get_as(tokens, cursor, char*));
1496 new_element->location.deref_size = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
1497 xbt_dynar_push(loc->location.compose, &new_element);
1498 }else if(strcmp(tok, "DW_OP_deref") == 0){
1499 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1500 new_element->type = e_dw_deref;
1501 new_element->location.deref_size = sizeof(void *);
1502 xbt_dynar_push(loc->location.compose, &new_element);
1503 }else if(strcmp(tok2, "DW_OP_constu:") == 0){
1504 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1505 new_element->type = e_dw_uconstant;
1506 new_element->location.uconstant.bytes = 1;
1507 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1508 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1509 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens, cursor, char*)));
1511 new_element->location.uconstant.value = (unsigned long int)(xbt_dynar_get_as(tokens, cursor, char*)[0] - '0');*/
1512 xbt_dynar_push(loc->location.compose, &new_element);
1513 }else if(strcmp(tok2, "DW_OP_consts:") == 0){
1514 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1515 new_element->type = e_dw_sconstant;
1516 new_element->location.sconstant.bytes = 1;
1517 new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1518 xbt_dynar_push(loc->location.compose, &new_element);
1519 }else if(strcmp(tok2, "DW_OP_const1u:") == 0 ||
1520 strcmp(tok2, "DW_OP_const2u:") == 0 ||
1521 strcmp(tok2, "DW_OP_const4u:") == 0 ||
1522 strcmp(tok2, "DW_OP_const8u:") == 0){
1523 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1524 new_element->type = e_dw_uconstant;
1525 new_element->location.uconstant.bytes = tok2[11] - '0';
1526 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1527 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1528 new_element->location.constant.value = atoi(xbt_dynar_get_as(tokens, cursor, char*));
1530 new_element->location.constant.value = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
1531 xbt_dynar_push(loc->location.compose, &new_element);
1532 }else if(strcmp(tok, "DW_OP_const1s") == 0 ||
1533 strcmp(tok, "DW_OP_const2s") == 0 ||
1534 strcmp(tok, "DW_OP_const4s") == 0 ||
1535 strcmp(tok, "DW_OP_const8s") == 0){
1536 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1537 new_element->type = e_dw_sconstant;
1538 new_element->location.sconstant.bytes = tok2[11] - '0';
1539 new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1540 xbt_dynar_push(loc->location.compose, &new_element);
1542 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1543 new_element->type = e_dw_unsupported;
1544 xbt_dynar_push(loc->location.compose, &new_element);
1548 xbt_dynar_free(&tokens2);
1552 xbt_dynar_free(&tokens1);
1561 void print_local_variables(xbt_dict_t list){
1563 dw_location_entry_t entry;
1564 dw_location_t location_entry;
1565 unsigned int cursor3 = 0, cursor4 = 0;
1566 xbt_dict_cursor_t cursor = 0, cursor2 = 0;
1568 char *frame_name, *variable_name;
1569 dw_frame_t current_frame;
1570 dw_local_variable_t current_variable;
1572 xbt_dict_foreach(list, cursor, frame_name, current_frame){
1573 fprintf(stderr, "Frame name : %s\n", current_frame->name);
1574 fprintf(stderr, "Location type : %d\n", current_frame->frame_base->type);
1575 xbt_dict_foreach((xbt_dict_t)current_frame->variables, cursor2, variable_name, current_variable){
1576 fprintf(stderr, "Name : %s\n", current_variable->name);
1577 if(current_variable->location == NULL)
1579 fprintf(stderr, "Location type : %d\n", current_variable->location->type);
1580 switch(current_variable->location->type){
1582 xbt_dynar_foreach(current_variable->location->location.loclist, cursor3, entry){
1583 fprintf(stderr, "Lowpc : %lx, Highpc : %lx,", entry->lowpc, entry->highpc);
1584 switch(entry->location->type){
1585 case e_dw_register :
1586 fprintf(stderr, " Location : in register %d\n", entry->location->location.reg);
1588 case e_dw_bregister_op:
1589 fprintf(stderr, " Location : Add %d to the value in register %d\n", entry->location->location.breg_op.offset, entry->location->location.breg_op.reg);
1592 fprintf(stderr, "Value already kwnown : %d\n", entry->location->location.lit);
1594 case e_dw_fbregister_op:
1595 fprintf(stderr, " Location : %d bytes from logical frame pointer\n", entry->location->location.fbreg_op);
1598 fprintf(stderr, " Location :\n");
1599 xbt_dynar_foreach(entry->location->location.compose, cursor4, location_entry){
1600 switch(location_entry->type){
1601 case e_dw_register :
1602 fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
1604 case e_dw_bregister_op:
1605 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);
1608 fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
1610 case e_dw_fbregister_op:
1611 fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
1614 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);
1616 case e_dw_arithmetic :
1617 fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
1620 fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
1622 case e_dw_uconstant :
1623 fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
1625 case e_dw_sconstant :
1626 fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
1629 fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
1635 fprintf(stderr, "Location type not supported\n");
1642 fprintf(stderr, "Location :\n");
1643 xbt_dynar_foreach(current_variable->location->location.compose, cursor4, location_entry){
1644 switch(location_entry->type){
1645 case e_dw_register :
1646 fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
1648 case e_dw_bregister_op:
1649 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);
1652 fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
1654 case e_dw_fbregister_op:
1655 fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
1658 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);
1660 case e_dw_arithmetic :
1661 fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
1664 fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
1666 case e_dw_uconstant :
1667 fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
1669 case e_dw_sconstant :
1670 fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
1673 fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
1679 fprintf(stderr, "Location type not supported\n");
1687 static void MC_get_global_variables(char *elf_file){
1691 char *command = bprintf("objdump -t -j .data -j .bss %s", elf_file);
1693 fp = popen(command, "r");
1696 perror("popen failed");
1700 if(mc_global_variables == NULL)
1701 mc_global_variables = xbt_dynar_new(sizeof(global_variable_t), global_variable_free_voidp);
1707 xbt_dynar_t line_tokens = NULL;
1708 unsigned long offset;
1710 int type = strcmp(elf_file, xbt_binary_name); /* 0 = binary, other = libsimgrid */
1712 while ((read = getline(&line, &n, fp)) != -1){
1717 /* Wipeout the new line character */
1718 line[read - 1] = '\0';
1720 xbt_str_strip_spaces(line);
1721 xbt_str_ltrim(line, NULL);
1723 line_tokens = xbt_str_split(line, NULL);
1725 if(xbt_dynar_length(line_tokens) <= 4 || strcmp(xbt_dynar_get_as(line_tokens, 0, char *), "SYMBOL") == 0)
1728 if((strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "__gcov", 6) == 0)
1729 || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "gcov", 4) == 0)
1730 || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), ".data") == 0)
1731 || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), ".bss") == 0)
1732 || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "stderr", 6) == 0)
1733 || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "counter", 7) == 0)
1734 || ((size_t)strtoul(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 2, char*), NULL, 16) == 0))
1737 global_variable_t var = xbt_new0(s_global_variable_t, 1);
1740 var->address = (void *)strtoul(xbt_dynar_get_as(line_tokens, 0, char*), NULL, 16);
1742 offset = strtoul(xbt_dynar_get_as(line_tokens, 0, char*), NULL, 16);
1743 var->address = (char *)start_text_libsimgrid+offset;
1746 var->size = (size_t)strtoul(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 2, char*), NULL, 16);
1747 var->name = strdup(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*));
1749 if(data_bss_ignore_size(var->address) > 0)
1750 global_variable_free(var);
1752 xbt_dynar_push(mc_global_variables, &var);
1754 xbt_dynar_free(&line_tokens);
1764 void global_variable_free(global_variable_t v){
1769 void global_variable_free_voidp(void *v){
1770 global_variable_free((global_variable_t) * (void **) v);