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));
184 /* Get global variables */
185 MC_get_global_variables(xbt_binary_name);
186 MC_get_global_variables(libsimgrid_path);
190 /* Ignore some variables from xbt/ex.h used by exception e for stacks comparison */
191 MC_ignore_stack("e", "*");
192 MC_ignore_stack("__ex_cleanup", "*");
193 MC_ignore_stack("__ex_mctx_en", "*");
194 MC_ignore_stack("__ex_mctx_me", "*");
195 MC_ignore_stack("__xbt_ex_ctx_ptr", "*");
196 MC_ignore_stack("_log_ev", "*");
197 MC_ignore_stack("_throw_ctx", "*");
198 MC_ignore_stack("ctx", "*");
200 MC_ignore_stack("next_context", "smx_ctx_sysv_suspend_serial");
201 MC_ignore_stack("i", "smx_ctx_sysv_suspend_serial");
208 void MC_modelcheck_safety(void)
210 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
212 /* Check if MC is already initialized */
213 if (initial_state_safety)
216 mc_time = xbt_new0(double, simix_process_maxpid);
218 /* Initialize the data structures that must be persistent across every
219 iteration of the model-checker (in RAW memory) */
223 /* Initialize statistics */
224 mc_stats = xbt_new0(s_mc_stats_t, 1);
225 mc_stats->state_size = 1;
227 /* Create exploration stack */
228 mc_stack_safety = xbt_fifo_new();
232 if(_sg_mc_visited > 0){
236 MC_init_memory_map_info();
237 get_libsimgrid_plt_section();
238 get_binary_plt_section();
245 /* Save the initial state */
246 initial_state_safety = xbt_new0(s_mc_global_t, 1);
247 initial_state_safety->snapshot = MC_take_snapshot();
258 void MC_modelcheck_liveness(){
260 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
266 /* Initialize statistics */
267 mc_stats_pair = xbt_new0(s_mc_stats_pair_t, 1);
269 /* Create exploration stack */
270 mc_stack_liveness = xbt_fifo_new();
272 initial_state_liveness = xbt_new0(s_mc_global_t, 1);
279 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;
755 ((xbt_mheap_t)std_heap)->heapinfo[region->block].busy_block.ignore = 1;
757 region->fragment = ((uintptr_t) (ADDR2UINT (address) % (BLOCKSIZE))) >> ((xbt_mheap_t)std_heap)->heapinfo[region->block].type;
758 ((xbt_mheap_t)std_heap)->heapinfo[region->block].busy_frag.ignore[region->fragment] = 1;
763 unsigned int cursor = 0;
764 mc_heap_ignore_region_t current_region;
765 xbt_dynar_foreach(mc_heap_comparison_ignore, cursor, current_region){
766 if(current_region->address > address)
770 xbt_dynar_insert_at(mc_heap_comparison_ignore, cursor, ®ion);
778 void MC_ignore_data_bss(void *address, size_t size){
780 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
784 if(mc_data_bss_comparison_ignore == NULL)
785 mc_data_bss_comparison_ignore = xbt_dynar_new(sizeof(mc_data_bss_ignore_variable_t), NULL);
787 if(xbt_dynar_is_empty(mc_data_bss_comparison_ignore)){
789 mc_data_bss_ignore_variable_t var = NULL;
790 var = xbt_new0(s_mc_data_bss_ignore_variable_t, 1);
791 var->address = address;
794 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, 0, &var);
798 unsigned int cursor = 0;
800 int end = xbt_dynar_length(mc_data_bss_comparison_ignore) - 1;
801 mc_data_bss_ignore_variable_t current_var = NULL;
804 cursor = (start + end) / 2;
805 current_var = (mc_data_bss_ignore_variable_t)xbt_dynar_get_as(mc_data_bss_comparison_ignore, cursor, mc_data_bss_ignore_variable_t);
806 if(current_var->address == address){
812 if(current_var->address < address)
814 if(current_var->address > address)
818 mc_data_bss_ignore_variable_t var = NULL;
819 var = xbt_new0(s_mc_data_bss_ignore_variable_t, 1);
820 var->address = address;
823 if(current_var->address < address)
824 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, cursor + 1, &var);
826 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, cursor, &var);
836 static size_t data_bss_ignore_size(void *address){
837 unsigned int cursor = 0;
839 int end = xbt_dynar_length(mc_data_bss_comparison_ignore) - 1;
840 mc_data_bss_ignore_variable_t var;
843 cursor = (start + end) / 2;
844 var = (mc_data_bss_ignore_variable_t)xbt_dynar_get_as(mc_data_bss_comparison_ignore, cursor, mc_data_bss_ignore_variable_t);
845 if(var->address == address)
847 if(var->address < address){
848 if((void *)((char *)var->address + var->size) > address)
849 return (char *)var->address + var->size - (char*)address;
853 if(var->address > address)
862 void MC_ignore_stack(const char *var_name, const char *frame){
864 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
868 if(mc_stack_comparison_ignore == NULL)
869 mc_stack_comparison_ignore = xbt_dynar_new(sizeof(mc_stack_ignore_variable_t), NULL);
871 if(xbt_dynar_is_empty(mc_stack_comparison_ignore)){
873 mc_stack_ignore_variable_t var = NULL;
874 var = xbt_new0(s_mc_stack_ignore_variable_t, 1);
875 var->var_name = strdup(var_name);
876 var->frame = strdup(frame);
878 xbt_dynar_insert_at(mc_stack_comparison_ignore, 0, &var);
882 unsigned int cursor = 0;
884 int end = xbt_dynar_length(mc_stack_comparison_ignore) - 1;
885 mc_stack_ignore_variable_t current_var = NULL;
888 cursor = (start + end) / 2;
889 current_var = (mc_stack_ignore_variable_t)xbt_dynar_get_as(mc_stack_comparison_ignore, cursor, mc_stack_ignore_variable_t);
890 if(strcmp(current_var->frame, frame) == 0){
891 if(strcmp(current_var->var_name, var_name) == 0){
897 if(strcmp(current_var->var_name, var_name) < 0)
899 if(strcmp(current_var->var_name, var_name) > 0)
902 if(strcmp(current_var->frame, frame) < 0)
904 if(strcmp(current_var->frame, frame) > 0)
908 mc_stack_ignore_variable_t var = NULL;
909 var = xbt_new0(s_mc_stack_ignore_variable_t, 1);
910 var->var_name = strdup(var_name);
911 var->frame = strdup(frame);
913 if(strcmp(current_var->frame, frame) < 0)
914 xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor + 1, &var);
916 xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor, &var);
927 void MC_new_stack_area(void *stack, char *name, void* context, size_t size){
929 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
932 if(stacks_areas == NULL)
933 stacks_areas = xbt_dynar_new(sizeof(stack_region_t), NULL);
935 stack_region_t region = NULL;
936 region = xbt_new0(s_stack_region_t, 1);
937 region->address = stack;
938 region->process_name = strdup(name);
939 region->context = context;
941 xbt_dynar_push(stacks_areas, ®ion);
949 /************ DWARF ***********/
951 xbt_dict_t MC_get_location_list(const char *elf_file){
953 char *command = bprintf("objdump -Wo %s", elf_file);
955 FILE *fp = popen(command, "r");
958 perror("popen for objdump failed");
962 int debug = 0; /*Detect if the program has been compiled with -g */
964 xbt_dict_t location_list = xbt_dict_new_homogeneous(NULL);
965 char *line = NULL, *loc_expr = NULL;
969 xbt_dynar_t split = NULL;
971 while ((read = getline(&line, &n, fp)) != -1) {
973 /* Wipeout the new line character */
974 line[read - 1] = '\0';
976 xbt_str_trim(line, NULL);
981 if(strlen(line) == 0)
986 if(strncmp(line, elf_file, strlen(elf_file)) == 0)
989 if(strncmp(line, "Contents", 8) == 0)
992 if(strncmp(line, "Offset", 6) == 0){
999 XBT_INFO("Your program must be compiled with -g");
1003 xbt_dynar_t loclist = xbt_dynar_new(sizeof(dw_location_entry_t), NULL);
1005 xbt_str_strip_spaces(line);
1006 split = xbt_str_split(line, " ");
1008 while(read != -1 && strcmp("<End", (char *)xbt_dynar_get_as(split, 1, char *)) != 0){
1010 dw_location_entry_t new_entry = xbt_new0(s_dw_location_entry_t, 1);
1011 new_entry->lowpc = strtoul((char *)xbt_dynar_get_as(split, 1, char *), NULL, 16);
1012 new_entry->highpc = strtoul((char *)xbt_dynar_get_as(split, 2, char *), NULL, 16);
1015 while(cursor_remove < 3){
1016 xbt_dynar_remove_at(split, 0, NULL);
1020 loc_expr = xbt_str_join(split, " ");
1021 xbt_str_ltrim(loc_expr, "(");
1022 xbt_str_rtrim(loc_expr, ")");
1023 new_entry->location = get_location(NULL, loc_expr);
1025 xbt_dynar_push(loclist, &new_entry);
1027 xbt_dynar_free(&split);
1030 read = getline(&line, &n, fp);
1032 line[read - 1] = '\0';
1033 xbt_str_strip_spaces(line);
1034 split = xbt_str_split(line, " ");
1040 char *key = bprintf("%d", (int)strtoul((char *)xbt_dynar_get_as(split, 0, char *), NULL, 16));
1041 xbt_dict_set(location_list, key, loclist, NULL);
1043 xbt_dynar_free(&split);
1051 return location_list;
1054 static dw_frame_t get_frame_by_offset(xbt_dict_t all_variables, unsigned long int offset){
1056 xbt_dict_cursor_t cursor = NULL;
1060 xbt_dict_foreach(all_variables, cursor, name, res) {
1061 if(offset >= res->start && offset < res->end)
1069 void MC_get_local_variables(const char *elf_file, xbt_dict_t location_list, xbt_dict_t *all_variables){
1071 char *command = bprintf("objdump -Wi %s", elf_file);
1073 FILE *fp = popen(command, "r");
1076 perror("popen for objdump failed");
1078 char *line = NULL, *origin, *abstract_origin, *current_frame = NULL;
1081 int valid_variable = 1;
1082 char *node_type = NULL, *location_type = NULL, *variable_name = NULL, *loc_expr = NULL;
1083 xbt_dynar_t split = NULL, split2 = NULL;
1085 xbt_dict_t variables_origin = xbt_dict_new_homogeneous(NULL);
1086 xbt_dict_t subprograms_origin = xbt_dict_new_homogeneous(NULL);
1087 char *subprogram_name = NULL, *subprogram_start = NULL, *subprogram_end = NULL;
1088 int new_frame = 0, new_variable = 0;
1089 dw_frame_t variable_frame, subroutine_frame = NULL;
1091 read = getline(&line, &n, fp);
1093 while (read != -1) {
1096 read = getline(&line, &n, fp);
1100 /* Wipeout the new line character */
1101 line[read - 1] = '\0';
1103 if(strlen(line) == 0){
1104 read = getline(&line, &n, fp);
1108 xbt_str_ltrim(line, NULL);
1109 xbt_str_strip_spaces(line);
1112 read = getline(&line, &n, fp);
1116 xbt_dynar_free(&split);
1117 split = xbt_str_split(line, " ");
1120 node_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1122 if(strcmp(node_type, "(DW_TAG_subprogram)") == 0){ /* New frame */
1124 dw_frame_t frame = NULL;
1126 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1127 subprogram_start = strdup(strtok(NULL, "<"));
1128 xbt_str_rtrim(subprogram_start, ">:");
1130 read = getline(&line, &n, fp);
1135 read = getline(&line, &n, fp);
1139 /* Wipeout the new line character */
1140 line[read - 1] = '\0';
1142 if(strlen(line) == 0){
1143 read = getline(&line, &n, fp);
1147 xbt_dynar_free(&split);
1148 xbt_str_rtrim(line, NULL);
1149 xbt_str_strip_spaces(line);
1150 split = xbt_str_split(line, " ");
1152 node_type = xbt_dynar_get_as(split, 1, char *);
1154 if(strncmp(node_type, "DW_AT_", 6) != 0)
1157 if(strcmp(node_type, "DW_AT_sibling") == 0){
1159 subprogram_end = strdup(xbt_dynar_get_as(split, 3, char*));
1160 xbt_str_ltrim(subprogram_end, "<0x");
1161 xbt_str_rtrim(subprogram_end, ">");
1163 }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){ /* Frame already in dict */
1166 abstract_origin = strdup(xbt_dynar_get_as(split, 2, char*));
1167 xbt_str_ltrim(abstract_origin, "<0x");
1168 xbt_str_rtrim(abstract_origin, ">");
1169 subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, abstract_origin);
1170 frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
1172 }else if(strcmp(node_type, "DW_AT_name") == 0){
1175 free(current_frame);
1176 frame = xbt_new0(s_dw_frame_t, 1);
1177 frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1178 frame->variables = xbt_dict_new_homogeneous(NULL);
1179 frame->frame_base = xbt_new0(s_dw_location_t, 1);
1180 current_frame = strdup(frame->name);
1182 xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
1184 }else if(strcmp(node_type, "DW_AT_frame_base") == 0){
1186 location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1188 if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
1190 frame->frame_base = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
1194 xbt_str_strip_spaces(line);
1195 split2 = xbt_str_split(line, "(");
1196 xbt_dynar_remove_at(split2, 0, NULL);
1197 loc_expr = xbt_str_join(split2, " ");
1198 xbt_str_rtrim(loc_expr, ")");
1199 frame->frame_base = get_location(NULL, loc_expr);
1200 xbt_dynar_free(&split2);
1204 }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
1207 frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1209 }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
1212 frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1214 }else if(strcmp(node_type, "DW_AT_MIPS_linkage_name:") == 0){
1217 free(current_frame);
1218 frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1219 current_frame = strdup(frame->name);
1220 xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
1224 read = getline(&line, &n, fp);
1229 frame->start = strtoul(subprogram_start, NULL, 16);
1230 if(subprogram_end != NULL)
1231 frame->end = strtoul(subprogram_end, NULL, 16);
1232 xbt_dict_set(*all_variables, frame->name, frame, NULL);
1235 free(subprogram_start);
1236 if(subprogram_end != NULL){
1237 free(subprogram_end);
1238 subprogram_end = NULL;
1242 }else if(strcmp(node_type, "(DW_TAG_variable)") == 0){ /* New variable */
1244 dw_local_variable_t var = NULL;
1246 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1247 origin = strdup(strtok(NULL, "<"));
1248 xbt_str_rtrim(origin, ">:");
1250 read = getline(&line, &n, fp);
1255 read = getline(&line, &n, fp);
1259 /* Wipeout the new line character */
1260 line[read - 1] = '\0';
1262 if(strlen(line) == 0){
1263 read = getline(&line, &n, fp);
1267 xbt_dynar_free(&split);
1268 xbt_str_rtrim(line, NULL);
1269 xbt_str_strip_spaces(line);
1270 split = xbt_str_split(line, " ");
1272 node_type = xbt_dynar_get_as(split, 1, char *);
1274 if(strncmp(node_type, "DW_AT_", 6) != 0)
1277 if(strcmp(node_type, "DW_AT_name") == 0){
1280 var = xbt_new0(s_dw_local_variable_t, 1);
1281 var->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1283 xbt_dict_set(variables_origin, origin, var->name, NULL);
1285 }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
1288 abstract_origin = xbt_dynar_get_as(split, 2, char *);
1289 xbt_str_ltrim(abstract_origin, "<0x");
1290 xbt_str_rtrim(abstract_origin, ">");
1292 variable_name = (char *)xbt_dict_get_or_null(variables_origin, abstract_origin);
1293 variable_frame = get_frame_by_offset(*all_variables, strtoul(abstract_origin, NULL, 16));
1294 var = xbt_dict_get_or_null(variable_frame->variables, variable_name);
1296 }else if(strcmp(node_type, "DW_AT_location") == 0){
1298 if(valid_variable == 1 && var != NULL){
1300 var->location = xbt_new0(s_dw_location_t, 1);
1302 location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1304 if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
1306 var->location = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
1310 xbt_str_strip_spaces(line);
1311 split2 = xbt_str_split(line, "(");
1312 xbt_dynar_remove_at(split2, 0, NULL);
1313 loc_expr = xbt_str_join(split2, " ");
1314 xbt_str_rtrim(loc_expr, ")");
1315 var->location = get_location(NULL, loc_expr);
1316 xbt_dynar_free(&split2);
1322 }else if(strcmp(node_type, "DW_AT_external") == 0){
1328 read = getline(&line, &n, fp);
1332 if(new_variable == 1 && valid_variable == 1){
1334 variable_frame = xbt_dict_get_or_null(*all_variables, current_frame);
1335 xbt_dict_set(variable_frame->variables, var->name, var, NULL);
1341 }else if(strcmp(node_type, "(DW_TAG_inlined_subroutine)") == 0){
1343 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1344 origin = strdup(strtok(NULL, "<"));
1345 xbt_str_rtrim(origin, ">:");
1347 read = getline(&line, &n, fp);
1351 /* Wipeout the new line character */
1352 line[read - 1] = '\0';
1355 read = getline(&line, &n, fp);
1359 if(strlen(line) == 0){
1360 read = getline(&line, &n, fp);
1364 xbt_dynar_free(&split);
1365 xbt_str_rtrim(line, NULL);
1366 xbt_str_strip_spaces(line);
1367 split = xbt_str_split(line, " ");
1369 if(strncmp(xbt_dynar_get_as(split, 1, char *), "DW_AT_", 6) != 0)
1372 node_type = xbt_dynar_get_as(split, 1, char *);
1374 if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
1376 origin = xbt_dynar_get_as(split, 2, char *);
1377 xbt_str_ltrim(origin, "<0x");
1378 xbt_str_rtrim(origin, ">");
1380 subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, origin);
1381 subroutine_frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
1383 }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
1385 subroutine_frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1387 }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
1389 subroutine_frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1392 read = getline(&line, &n, fp);
1398 read = getline(&line, &n, fp);
1404 xbt_dynar_free(&split);
1411 static dw_location_t get_location(xbt_dict_t location_list, char *expr){
1413 dw_location_t loc = xbt_new0(s_dw_location_t, 1);
1415 if(location_list != NULL){
1417 char *key = bprintf("%d", (int)strtoul(expr, NULL, 16));
1418 loc->type = e_dw_loclist;
1419 loc->location.loclist = (xbt_dynar_t)xbt_dict_get_or_null(location_list, key);
1421 XBT_INFO("Key not found in loclist");
1427 char *tok = NULL, *tok2 = NULL;
1429 xbt_dynar_t tokens1 = xbt_str_split(expr, ";");
1430 xbt_dynar_t tokens2;
1432 loc->type = e_dw_compose;
1433 loc->location.compose = xbt_dynar_new(sizeof(dw_location_t), NULL);
1435 while(cursor < xbt_dynar_length(tokens1)){
1437 tok = xbt_dynar_get_as(tokens1, cursor, char*);
1438 tokens2 = xbt_str_split(tok, " ");
1439 tok2 = xbt_dynar_get_as(tokens2, 0, char*);
1441 if(strncmp(tok2, "DW_OP_reg", 9) == 0){
1442 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1443 new_element->type = e_dw_register;
1444 new_element->location.reg = atoi(strtok(tok2, "DW_OP_reg"));
1445 xbt_dynar_push(loc->location.compose, &new_element);
1446 }else if(strcmp(tok2, "DW_OP_fbreg:") == 0){
1447 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1448 new_element->type = e_dw_fbregister_op;
1449 new_element->location.fbreg_op = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1450 xbt_dynar_push(loc->location.compose, &new_element);
1451 }else if(strncmp(tok2, "DW_OP_breg", 10) == 0){
1452 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1453 new_element->type = e_dw_bregister_op;
1454 new_element->location.breg_op.reg = atoi(strtok(tok2, "DW_OP_breg"));
1455 new_element->location.breg_op.offset = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1456 xbt_dynar_push(loc->location.compose, &new_element);
1457 }else if(strncmp(tok2, "DW_OP_lit", 9) == 0){
1458 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1459 new_element->type = e_dw_lit;
1460 new_element->location.lit = atoi(strtok(tok2, "DW_OP_lit"));
1461 xbt_dynar_push(loc->location.compose, &new_element);
1462 }else if(strcmp(tok2, "DW_OP_piece:") == 0){
1463 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1464 new_element->type = e_dw_piece;
1465 new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1466 /*if(strlen(xbt_dynar_get_as(tokens2, 1, char*)) > 1)
1467 new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1469 new_element->location.piece = xbt_dynar_get_as(tokens2, 1, char*)[0] - '0';*/
1470 xbt_dynar_push(loc->location.compose, &new_element);
1471 }else if(strcmp(tok2, "DW_OP_plus_uconst:") == 0){
1472 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1473 new_element->type = e_dw_plus_uconst;
1474 new_element->location.plus_uconst = atoi(xbt_dynar_get_as(tokens2, 1, char *));
1475 xbt_dynar_push(loc->location.compose, &new_element);
1476 }else if(strcmp(tok, "DW_OP_abs") == 0 ||
1477 strcmp(tok, "DW_OP_and") == 0 ||
1478 strcmp(tok, "DW_OP_div") == 0 ||
1479 strcmp(tok, "DW_OP_minus") == 0 ||
1480 strcmp(tok, "DW_OP_mod") == 0 ||
1481 strcmp(tok, "DW_OP_mul") == 0 ||
1482 strcmp(tok, "DW_OP_neg") == 0 ||
1483 strcmp(tok, "DW_OP_not") == 0 ||
1484 strcmp(tok, "DW_OP_or") == 0 ||
1485 strcmp(tok, "DW_OP_plus") == 0){
1486 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1487 new_element->type = e_dw_arithmetic;
1488 new_element->location.arithmetic = strdup(strtok(tok2, "DW_OP_"));
1489 xbt_dynar_push(loc->location.compose, &new_element);
1490 }else if(strcmp(tok, "DW_OP_stack_value") == 0){
1491 }else if(strcmp(tok2, "DW_OP_deref_size:") == 0){
1492 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1493 new_element->type = e_dw_deref;
1494 new_element->location.deref_size = (unsigned int short) atoi(xbt_dynar_get_as(tokens2, 1, char*));
1495 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1496 new_element->location.deref_size = atoi(xbt_dynar_get_as(tokens, cursor, char*));
1498 new_element->location.deref_size = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
1499 xbt_dynar_push(loc->location.compose, &new_element);
1500 }else if(strcmp(tok, "DW_OP_deref") == 0){
1501 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1502 new_element->type = e_dw_deref;
1503 new_element->location.deref_size = sizeof(void *);
1504 xbt_dynar_push(loc->location.compose, &new_element);
1505 }else if(strcmp(tok2, "DW_OP_constu:") == 0){
1506 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1507 new_element->type = e_dw_uconstant;
1508 new_element->location.uconstant.bytes = 1;
1509 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1510 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1511 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens, cursor, char*)));
1513 new_element->location.uconstant.value = (unsigned long int)(xbt_dynar_get_as(tokens, cursor, char*)[0] - '0');*/
1514 xbt_dynar_push(loc->location.compose, &new_element);
1515 }else if(strcmp(tok2, "DW_OP_consts:") == 0){
1516 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1517 new_element->type = e_dw_sconstant;
1518 new_element->location.sconstant.bytes = 1;
1519 new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1520 xbt_dynar_push(loc->location.compose, &new_element);
1521 }else if(strcmp(tok2, "DW_OP_const1u:") == 0 ||
1522 strcmp(tok2, "DW_OP_const2u:") == 0 ||
1523 strcmp(tok2, "DW_OP_const4u:") == 0 ||
1524 strcmp(tok2, "DW_OP_const8u:") == 0){
1525 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1526 new_element->type = e_dw_uconstant;
1527 new_element->location.uconstant.bytes = tok2[11] - '0';
1528 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1529 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1530 new_element->location.constant.value = atoi(xbt_dynar_get_as(tokens, cursor, char*));
1532 new_element->location.constant.value = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
1533 xbt_dynar_push(loc->location.compose, &new_element);
1534 }else if(strcmp(tok, "DW_OP_const1s") == 0 ||
1535 strcmp(tok, "DW_OP_const2s") == 0 ||
1536 strcmp(tok, "DW_OP_const4s") == 0 ||
1537 strcmp(tok, "DW_OP_const8s") == 0){
1538 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1539 new_element->type = e_dw_sconstant;
1540 new_element->location.sconstant.bytes = tok2[11] - '0';
1541 new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1542 xbt_dynar_push(loc->location.compose, &new_element);
1544 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1545 new_element->type = e_dw_unsupported;
1546 xbt_dynar_push(loc->location.compose, &new_element);
1550 xbt_dynar_free(&tokens2);
1554 xbt_dynar_free(&tokens1);
1563 void print_local_variables(xbt_dict_t list){
1565 dw_location_entry_t entry;
1566 dw_location_t location_entry;
1567 unsigned int cursor3 = 0, cursor4 = 0;
1568 xbt_dict_cursor_t cursor = 0, cursor2 = 0;
1570 char *frame_name, *variable_name;
1571 dw_frame_t current_frame;
1572 dw_local_variable_t current_variable;
1574 xbt_dict_foreach(list, cursor, frame_name, current_frame){
1575 fprintf(stderr, "Frame name : %s\n", current_frame->name);
1576 fprintf(stderr, "Location type : %d\n", current_frame->frame_base->type);
1577 xbt_dict_foreach((xbt_dict_t)current_frame->variables, cursor2, variable_name, current_variable){
1578 fprintf(stderr, "Name : %s\n", current_variable->name);
1579 if(current_variable->location == NULL)
1581 fprintf(stderr, "Location type : %d\n", current_variable->location->type);
1582 switch(current_variable->location->type){
1584 xbt_dynar_foreach(current_variable->location->location.loclist, cursor3, entry){
1585 fprintf(stderr, "Lowpc : %lx, Highpc : %lx,", entry->lowpc, entry->highpc);
1586 switch(entry->location->type){
1587 case e_dw_register :
1588 fprintf(stderr, " Location : in register %d\n", entry->location->location.reg);
1590 case e_dw_bregister_op:
1591 fprintf(stderr, " Location : Add %d to the value in register %d\n", entry->location->location.breg_op.offset, entry->location->location.breg_op.reg);
1594 fprintf(stderr, "Value already kwnown : %d\n", entry->location->location.lit);
1596 case e_dw_fbregister_op:
1597 fprintf(stderr, " Location : %d bytes from logical frame pointer\n", entry->location->location.fbreg_op);
1600 fprintf(stderr, " Location :\n");
1601 xbt_dynar_foreach(entry->location->location.compose, cursor4, location_entry){
1602 switch(location_entry->type){
1603 case e_dw_register :
1604 fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
1606 case e_dw_bregister_op:
1607 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);
1610 fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
1612 case e_dw_fbregister_op:
1613 fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
1616 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);
1618 case e_dw_arithmetic :
1619 fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
1622 fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
1624 case e_dw_uconstant :
1625 fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
1627 case e_dw_sconstant :
1628 fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
1631 fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
1637 fprintf(stderr, "Location type not supported\n");
1644 fprintf(stderr, "Location :\n");
1645 xbt_dynar_foreach(current_variable->location->location.compose, cursor4, location_entry){
1646 switch(location_entry->type){
1647 case e_dw_register :
1648 fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
1650 case e_dw_bregister_op:
1651 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);
1654 fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
1656 case e_dw_fbregister_op:
1657 fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
1660 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);
1662 case e_dw_arithmetic :
1663 fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
1666 fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
1668 case e_dw_uconstant :
1669 fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
1671 case e_dw_sconstant :
1672 fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
1675 fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
1681 fprintf(stderr, "Location type not supported\n");
1689 static void MC_get_global_variables(char *elf_file){
1693 char *command = bprintf("objdump -t -j .data -j .bss %s", elf_file);
1695 fp = popen(command, "r");
1698 perror("popen failed");
1702 if(mc_global_variables == NULL)
1703 mc_global_variables = xbt_dynar_new(sizeof(global_variable_t), global_variable_free_voidp);
1709 xbt_dynar_t line_tokens = NULL;
1710 unsigned long offset;
1712 int type = strcmp(elf_file, xbt_binary_name); /* 0 = binary, other = libsimgrid */
1714 while ((read = getline(&line, &n, fp)) != -1){
1719 /* Wipeout the new line character */
1720 line[read - 1] = '\0';
1722 xbt_str_strip_spaces(line);
1723 xbt_str_ltrim(line, NULL);
1725 line_tokens = xbt_str_split(line, NULL);
1727 if(xbt_dynar_length(line_tokens) <= 4 || strcmp(xbt_dynar_get_as(line_tokens, 0, char *), "SYMBOL") == 0)
1730 if((strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "__gcov", 6) == 0)
1731 || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "gcov", 4) == 0)
1732 || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), ".data") == 0)
1733 || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), ".bss") == 0)
1734 || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "stderr", 6) == 0)
1735 || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "counter", 7) == 0)
1736 || ((size_t)strtoul(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 2, char*), NULL, 16) == 0))
1739 global_variable_t var = xbt_new0(s_global_variable_t, 1);
1742 var->address = (void *)strtoul(xbt_dynar_get_as(line_tokens, 0, char*), NULL, 16);
1744 offset = strtoul(xbt_dynar_get_as(line_tokens, 0, char*), NULL, 16);
1745 var->address = (char *)start_text_libsimgrid+offset;
1748 var->size = (size_t)strtoul(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 2, char*), NULL, 16);
1749 var->name = strdup(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*));
1751 if(data_bss_ignore_size(var->address) > 0)
1752 global_variable_free(var);
1754 xbt_dynar_push(mc_global_variables, &var);
1756 xbt_dynar_free(&line_tokens);
1766 void global_variable_free(global_variable_t v){
1771 void global_variable_free_voidp(void *v){
1772 global_variable_free((global_variable_t) * (void **) v);