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;
89 mc_comparison_times_t mc_comp_times = NULL;
90 double mc_snapshot_comparison_time;
94 xbt_fifo_t mc_stack_safety = NULL;
95 mc_stats_t mc_stats = NULL;
96 mc_global_t initial_state_safety = NULL;
100 mc_stats_pair_t mc_stats_pair = NULL;
101 xbt_fifo_t mc_stack_liveness = NULL;
102 mc_global_t initial_state_liveness = NULL;
106 xbt_dict_t mc_local_variables = NULL;
108 xbt_dynar_t mc_global_variables = NULL;
110 /* Ignore mechanism */
111 xbt_dynar_t mc_stack_comparison_ignore;
112 xbt_dynar_t mc_data_bss_comparison_ignore;
113 extern xbt_dynar_t mc_heap_comparison_ignore;
114 extern xbt_dynar_t stacks_areas;
116 xbt_automaton_t _mc_property_automaton = NULL;
118 /* Static functions */
120 static void MC_assert_pair(int prop);
121 static dw_location_t get_location(xbt_dict_t location_list, char *expr);
122 static dw_frame_t get_frame_by_offset(xbt_dict_t all_variables, unsigned long int offset);
123 static size_t data_bss_ignore_size(void *address);
124 static void MC_get_global_variables(char *elf_file);
125 static void heap_ignore_region_free(mc_heap_ignore_region_t r);
126 static void heap_ignore_region_free_voidp(void *r);
128 void MC_do_the_modelcheck_for_real() {
131 mc_comp_times = xbt_new0(s_mc_comparison_times_t, 1);
134 if (!_sg_mc_property_file || _sg_mc_property_file[0]=='\0') {
135 if (mc_reduce_kind==e_mc_reduce_unset)
136 mc_reduce_kind=e_mc_reduce_dpor;
138 XBT_INFO("Check a safety property");
139 MC_modelcheck_safety();
143 if (mc_reduce_kind==e_mc_reduce_unset)
144 mc_reduce_kind=e_mc_reduce_none;
146 XBT_INFO("Check the liveness property %s",_sg_mc_property_file);
147 MC_automaton_load(_sg_mc_property_file);
148 MC_modelcheck_liveness();
153 void MC_compare(void){
159 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
161 mc_time = xbt_new0(double, simix_process_maxpid);
163 /* mc_time refers to clock for each process -> ignore it for heap comparison */
165 for(i = 0; i<simix_process_maxpid; i++)
166 MC_ignore_heap(&(mc_time[i]), sizeof(double));
170 /* Initialize the data structures that must be persistent across every
171 iteration of the model-checker (in RAW memory) */
175 MC_init_memory_map_info();
177 mc_local_variables = xbt_dict_new_homogeneous(NULL);
179 /* Get local variables in binary for state equality detection */
180 xbt_dict_t binary_location_list = MC_get_location_list(xbt_binary_name);
181 MC_get_local_variables(xbt_binary_name, binary_location_list, &mc_local_variables);
183 /* Get local variables in libsimgrid for state equality detection */
184 xbt_dict_t libsimgrid_location_list = MC_get_location_list(libsimgrid_path);
185 MC_get_local_variables(libsimgrid_path, libsimgrid_location_list, &mc_local_variables);
187 xbt_dict_free(&libsimgrid_location_list);
188 xbt_dict_free(&binary_location_list);
190 /* Get .plt section (start and end addresses) for data libsimgrid and data program comparison */
191 get_libsimgrid_plt_section();
192 get_binary_plt_section();
194 MC_ignore_data_bss(&end_raw_heap, sizeof(end_raw_heap));
195 MC_ignore_data_bss(&mc_comp_times, sizeof(mc_comp_times));
196 MC_ignore_data_bss(&mc_snapshot_comparison_time, sizeof(mc_snapshot_comparison_time));
198 /* Get global variables */
199 MC_get_global_variables(xbt_binary_name);
200 MC_get_global_variables(libsimgrid_path);
204 /* Ignore some variables from xbt/ex.h used by exception e for stacks comparison */
205 MC_ignore_stack("e", "*");
206 MC_ignore_stack("__ex_cleanup", "*");
207 MC_ignore_stack("__ex_mctx_en", "*");
208 MC_ignore_stack("__ex_mctx_me", "*");
209 MC_ignore_stack("__xbt_ex_ctx_ptr", "*");
210 MC_ignore_stack("_log_ev", "*");
211 MC_ignore_stack("_throw_ctx", "*");
212 MC_ignore_stack("ctx", "*");
214 MC_ignore_stack("next_context", "smx_ctx_sysv_suspend_serial");
215 MC_ignore_stack("i", "smx_ctx_sysv_suspend_serial");
222 void MC_modelcheck_safety(void)
224 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
226 /* Check if MC is already initialized */
227 if (initial_state_safety)
230 mc_time = xbt_new0(double, simix_process_maxpid);
232 /* Initialize the data structures that must be persistent across every
233 iteration of the model-checker (in RAW memory) */
237 /* Initialize statistics */
238 mc_stats = xbt_new0(s_mc_stats_t, 1);
239 mc_stats->state_size = 1;
241 /* Create exploration stack */
242 mc_stack_safety = xbt_fifo_new();
246 if(_sg_mc_visited > 0){
250 MC_init_memory_map_info();
251 get_libsimgrid_plt_section();
252 get_binary_plt_section();
259 /* Save the initial state */
260 initial_state_safety = xbt_new0(s_mc_global_t, 1);
261 initial_state_safety->snapshot = MC_take_snapshot();
272 void MC_modelcheck_liveness(){
274 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
280 /* Initialize statistics */
281 mc_stats_pair = xbt_new0(s_mc_stats_pair_t, 1);
283 /* Create exploration stack */
284 mc_stack_liveness = xbt_fifo_new();
286 initial_state_liveness = xbt_new0(s_mc_global_t, 1);
293 MC_print_statistics_pairs(mc_stats_pair);
310 int MC_random(int min, int max)
312 /*FIXME: return mc_current_state->executed_transition->random.value;*/
317 * \brief Schedules all the process that are ready to run
319 void MC_wait_for_requests(void)
321 smx_process_t process;
325 while (!xbt_dynar_is_empty(simix_global->process_to_run)) {
326 SIMIX_process_runall();
327 xbt_dynar_foreach(simix_global->process_that_ran, iter, process) {
328 req = &process->simcall;
329 if (req->call != SIMCALL_NONE && !MC_request_is_visible(req))
330 SIMIX_simcall_pre(req, 0);
335 int MC_deadlock_check()
337 int deadlock = FALSE;
338 smx_process_t process;
339 if(xbt_swag_size(simix_global->process_list)){
341 xbt_swag_foreach(process, simix_global->process_list){
342 if(process->simcall.call != SIMCALL_NONE
343 && MC_request_is_enabled(&process->simcall)){
353 * \brief Re-executes from the state at position start all the transitions indicated by
354 * a given model-checker stack.
355 * \param stack The stack with the transitions to execute.
356 * \param start Start index to begin the re-execution.
358 void MC_replay(xbt_fifo_t stack, int start)
360 int raw_mem = (mmalloc_get_current_heap() == raw_heap);
364 smx_simcall_t req = NULL, saved_req = NULL;
365 xbt_fifo_item_t item, start_item;
368 XBT_DEBUG("**** Begin Replay ****");
371 /* Restore the initial state */
372 MC_restore_snapshot(initial_state_safety->snapshot);
373 /* At the moment of taking the snapshot the raw heap was set, so restoring
374 * it will set it back again, we have to unset it to continue */
378 start_item = xbt_fifo_get_last_item(stack);
381 start_item = xbt_fifo_get_prev_item(start_item);
386 /* Traverse the stack from the state at position start and re-execute the transitions */
387 for (item = start_item;
388 item != xbt_fifo_get_first_item(stack);
389 item = xbt_fifo_get_prev_item(item)) {
391 state = (mc_state_t) xbt_fifo_get_item_content(item);
392 saved_req = MC_state_get_executed_request(state, &value);
395 /* because we got a copy of the executed request, we have to fetch the
396 real one, pointed by the request field of the issuer process */
397 req = &saved_req->issuer->simcall;
399 /* Debug information */
400 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
401 req_str = MC_request_to_string(req, value);
402 XBT_DEBUG("Replay: %s (%p)", req_str, state);
407 SIMIX_simcall_pre(req, value);
408 MC_wait_for_requests();
410 /* Update statistics */
411 mc_stats->visited_states++;
412 mc_stats->executed_transitions++;
414 XBT_DEBUG("**** End Replay ****");
424 void MC_replay_liveness(xbt_fifo_t stack, int all_stack)
427 initial_state_liveness->raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
431 smx_simcall_t req = NULL, saved_req = NULL;
432 xbt_fifo_item_t item;
434 mc_pair_stateless_t pair;
437 XBT_DEBUG("**** Begin Replay ****");
439 /* Restore the initial state */
440 MC_restore_snapshot(initial_state_liveness->snapshot);
442 /* At the moment of taking the snapshot the raw heap was set, so restoring
443 * it will set it back again, we have to unset it to continue */
444 if(!initial_state_liveness->raw_mem_set)
449 item = xbt_fifo_get_last_item(stack);
451 while(depth <= xbt_fifo_size(stack)){
453 pair = (mc_pair_stateless_t) xbt_fifo_get_item_content(item);
454 state = (mc_state_t) pair->graph_state;
456 if(pair->requests > 0){
458 saved_req = MC_state_get_executed_request(state, &value);
459 //XBT_DEBUG("SavedReq->call %u", saved_req->call);
461 if(saved_req != NULL){
462 /* because we got a copy of the executed request, we have to fetch the
463 real one, pointed by the request field of the issuer process */
464 req = &saved_req->issuer->simcall;
465 //XBT_DEBUG("Req->call %u", req->call);
467 /* Debug information */
468 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
469 req_str = MC_request_to_string(req, value);
470 XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
476 SIMIX_simcall_pre(req, value);
477 MC_wait_for_requests();
482 /* Update statistics */
483 mc_stats_pair->visited_pairs++;
485 item = xbt_fifo_get_prev_item(item);
490 /* Traverse the stack from the initial state and re-execute the transitions */
491 for (item = xbt_fifo_get_last_item(stack);
492 item != xbt_fifo_get_first_item(stack);
493 item = xbt_fifo_get_prev_item(item)) {
495 pair = (mc_pair_stateless_t) xbt_fifo_get_item_content(item);
496 state = (mc_state_t) pair->graph_state;
498 if(pair->requests > 0){
500 saved_req = MC_state_get_executed_request(state, &value);
501 //XBT_DEBUG("SavedReq->call %u", saved_req->call);
503 if(saved_req != NULL){
504 /* because we got a copy of the executed request, we have to fetch the
505 real one, pointed by the request field of the issuer process */
506 req = &saved_req->issuer->simcall;
507 //XBT_DEBUG("Req->call %u", req->call);
509 /* Debug information */
510 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
511 req_str = MC_request_to_string(req, value);
512 XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
518 SIMIX_simcall_pre(req, value);
519 MC_wait_for_requests();
524 /* Update statistics */
525 mc_stats_pair->visited_pairs++;
529 XBT_DEBUG("**** End Replay ****");
531 if(initial_state_liveness->raw_mem_set)
539 * \brief Dumps the contents of a model-checker's stack and shows the actual
541 * \param stack The stack to dump
543 void MC_dump_stack_safety(xbt_fifo_t stack)
546 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
548 MC_show_stack_safety(stack);
550 if(!_sg_mc_checkpoint){
555 while ((state = (mc_state_t) xbt_fifo_pop(stack)) != NULL)
556 MC_state_delete(state);
569 void MC_show_stack_safety(xbt_fifo_t stack)
573 xbt_fifo_item_t item;
575 char *req_str = NULL;
577 for (item = xbt_fifo_get_last_item(stack);
578 (item ? (state = (mc_state_t) (xbt_fifo_get_item_content(item)))
579 : (NULL)); item = xbt_fifo_get_prev_item(item)) {
580 req = MC_state_get_executed_request(state, &value);
582 req_str = MC_request_to_string(req, value);
583 XBT_INFO("%s", req_str);
589 void MC_show_deadlock(smx_simcall_t req)
591 /*char *req_str = NULL;*/
592 XBT_INFO("**************************");
593 XBT_INFO("*** DEAD-LOCK DETECTED ***");
594 XBT_INFO("**************************");
595 XBT_INFO("Locked request:");
596 /*req_str = MC_request_to_string(req);
597 XBT_INFO("%s", req_str);
599 XBT_INFO("Counter-example execution trace:");
600 MC_dump_stack_safety(mc_stack_safety);
604 void MC_show_stack_liveness(xbt_fifo_t stack){
606 mc_pair_stateless_t pair;
607 xbt_fifo_item_t item;
609 char *req_str = NULL;
611 for (item = xbt_fifo_get_last_item(stack);
612 (item ? (pair = (mc_pair_stateless_t) (xbt_fifo_get_item_content(item)))
613 : (NULL)); item = xbt_fifo_get_prev_item(item)) {
614 req = MC_state_get_executed_request(pair->graph_state, &value);
616 if(pair->requests>0){
617 req_str = MC_request_to_string(req, value);
618 XBT_INFO("%s", req_str);
621 XBT_INFO("End of system requests but evolution in Büchi automaton");
627 void MC_dump_stack_liveness(xbt_fifo_t stack){
629 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
631 mc_pair_stateless_t pair;
634 while ((pair = (mc_pair_stateless_t) xbt_fifo_pop(stack)) != NULL)
635 pair_stateless_free(pair);
644 void MC_print_statistics(mc_stats_t stats)
646 //XBT_INFO("State space size ~= %lu", stats->state_size);
647 XBT_INFO("Expanded states = %lu", stats->expanded_states);
648 XBT_INFO("Visited states = %lu", stats->visited_states);
649 XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
650 XBT_INFO("Expanded / Visited = %lf",
651 (double) stats->visited_states / stats->expanded_states);
652 /*XBT_INFO("Exploration coverage = %lf",
653 (double)stats->expanded_states / stats->state_size); */
656 void MC_print_statistics_pairs(mc_stats_pair_t stats)
658 XBT_INFO("Expanded pairs = %lu", stats->expanded_pairs);
659 XBT_INFO("Visited pairs = %lu", stats->visited_pairs);
660 //XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
661 XBT_INFO("Expanded / Visited = %lf",
662 (double) stats->visited_pairs / stats->expanded_pairs);
664 if(mmalloc_get_current_heap() == raw_heap)
668 void MC_assert(int prop)
670 if (MC_is_active() && !prop){
671 XBT_INFO("**************************");
672 XBT_INFO("*** PROPERTY NOT VALID ***");
673 XBT_INFO("**************************");
674 XBT_INFO("Counter-example execution trace:");
675 MC_dump_stack_safety(mc_stack_safety);
676 MC_print_statistics(mc_stats);
681 static void MC_assert_pair(int prop){
682 if (MC_is_active() && !prop) {
683 XBT_INFO("**************************");
684 XBT_INFO("*** PROPERTY NOT VALID ***");
685 XBT_INFO("**************************");
686 //XBT_INFO("Counter-example execution trace:");
687 MC_show_stack_liveness(mc_stack_liveness);
688 //MC_dump_snapshot_stack(mc_snapshot_stack);
689 MC_print_statistics_pairs(mc_stats_pair);
694 void MC_process_clock_add(smx_process_t process, double amount)
696 mc_time[process->pid] += amount;
699 double MC_process_clock_get(smx_process_t process)
703 return mc_time[process->pid];
711 void MC_automaton_load(const char *file){
713 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
717 if (_mc_property_automaton == NULL)
718 _mc_property_automaton = xbt_automaton_new();
720 xbt_automaton_load(_mc_property_automaton,file);
729 void MC_automaton_new_propositional_symbol(const char* id, void* fct) {
731 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
735 if (_mc_property_automaton == NULL)
736 _mc_property_automaton = xbt_automaton_new();
738 xbt_new_propositional_symbol(_mc_property_automaton,id,fct);
747 /************ MC_ignore ***********/
749 static void heap_ignore_region_free(mc_heap_ignore_region_t r){
754 static void heap_ignore_region_free_voidp(void *r){
755 heap_ignore_region_free((mc_heap_ignore_region_t) * (void **) r);
758 void MC_ignore_heap(void *address, size_t size){
760 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
764 if(mc_heap_comparison_ignore == NULL)
765 mc_heap_comparison_ignore = xbt_dynar_new(sizeof(mc_heap_ignore_region_t), heap_ignore_region_free_voidp);
767 mc_heap_ignore_region_t region = NULL;
768 region = xbt_new0(s_mc_heap_ignore_region_t, 1);
769 region->address = address;
772 region->block = ((char*)address - (char*)((xbt_mheap_t)std_heap)->heapbase) / BLOCKSIZE + 1;
774 if(((xbt_mheap_t)std_heap)->heapinfo[region->block].type == 0){
775 region->fragment = -1;
776 ((xbt_mheap_t)std_heap)->heapinfo[region->block].busy_block.ignore = 1;
778 region->fragment = ((uintptr_t) (ADDR2UINT (address) % (BLOCKSIZE))) >> ((xbt_mheap_t)std_heap)->heapinfo[region->block].type;
779 ((xbt_mheap_t)std_heap)->heapinfo[region->block].busy_frag.ignore[region->fragment] = 1;
782 unsigned int cursor = 0;
783 mc_heap_ignore_region_t current_region;
784 xbt_dynar_foreach(mc_heap_comparison_ignore, cursor, current_region){
785 if(current_region->address > address)
789 xbt_dynar_insert_at(mc_heap_comparison_ignore, cursor, ®ion);
799 void MC_remove_ignore_heap(void *address, size_t size){
801 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
805 unsigned int cursor = 0;
807 int end = xbt_dynar_length(mc_heap_comparison_ignore) - 1;
808 mc_heap_ignore_region_t region;
809 int ignore_found = 0;
812 cursor = (start + end) / 2;
813 region = (mc_heap_ignore_region_t)xbt_dynar_get_as(mc_heap_comparison_ignore, cursor, mc_heap_ignore_region_t);
814 if(region->address == address){
818 if(region->address < address)
820 if(region->address > address){
821 if((char * )region->address <= ((char *)address + size)){
829 if(ignore_found == 1){
830 xbt_dynar_remove_at(mc_heap_comparison_ignore, cursor, NULL);
831 MC_remove_ignore_heap(address, size);
840 void MC_ignore_data_bss(void *address, size_t size){
842 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
846 if(mc_data_bss_comparison_ignore == NULL)
847 mc_data_bss_comparison_ignore = xbt_dynar_new(sizeof(mc_data_bss_ignore_variable_t), NULL);
849 if(xbt_dynar_is_empty(mc_data_bss_comparison_ignore)){
851 mc_data_bss_ignore_variable_t var = NULL;
852 var = xbt_new0(s_mc_data_bss_ignore_variable_t, 1);
853 var->address = address;
856 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, 0, &var);
860 unsigned int cursor = 0;
862 int end = xbt_dynar_length(mc_data_bss_comparison_ignore) - 1;
863 mc_data_bss_ignore_variable_t current_var = NULL;
866 cursor = (start + end) / 2;
867 current_var = (mc_data_bss_ignore_variable_t)xbt_dynar_get_as(mc_data_bss_comparison_ignore, cursor, mc_data_bss_ignore_variable_t);
868 if(current_var->address == address){
874 if(current_var->address < address)
876 if(current_var->address > address)
880 mc_data_bss_ignore_variable_t var = NULL;
881 var = xbt_new0(s_mc_data_bss_ignore_variable_t, 1);
882 var->address = address;
885 if(current_var->address < address)
886 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, cursor + 1, &var);
888 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, cursor, &var);
898 static size_t data_bss_ignore_size(void *address){
899 unsigned int cursor = 0;
901 int end = xbt_dynar_length(mc_data_bss_comparison_ignore) - 1;
902 mc_data_bss_ignore_variable_t var;
905 cursor = (start + end) / 2;
906 var = (mc_data_bss_ignore_variable_t)xbt_dynar_get_as(mc_data_bss_comparison_ignore, cursor, mc_data_bss_ignore_variable_t);
907 if(var->address == address)
909 if(var->address < address){
910 if((void *)((char *)var->address + var->size) > address)
911 return (char *)var->address + var->size - (char*)address;
915 if(var->address > address)
924 void MC_ignore_stack(const char *var_name, const char *frame){
926 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
930 if(mc_stack_comparison_ignore == NULL)
931 mc_stack_comparison_ignore = xbt_dynar_new(sizeof(mc_stack_ignore_variable_t), NULL);
933 if(xbt_dynar_is_empty(mc_stack_comparison_ignore)){
935 mc_stack_ignore_variable_t var = NULL;
936 var = xbt_new0(s_mc_stack_ignore_variable_t, 1);
937 var->var_name = strdup(var_name);
938 var->frame = strdup(frame);
940 xbt_dynar_insert_at(mc_stack_comparison_ignore, 0, &var);
944 unsigned int cursor = 0;
946 int end = xbt_dynar_length(mc_stack_comparison_ignore) - 1;
947 mc_stack_ignore_variable_t current_var = NULL;
950 cursor = (start + end) / 2;
951 current_var = (mc_stack_ignore_variable_t)xbt_dynar_get_as(mc_stack_comparison_ignore, cursor, mc_stack_ignore_variable_t);
952 if(strcmp(current_var->frame, frame) == 0){
953 if(strcmp(current_var->var_name, var_name) == 0){
959 if(strcmp(current_var->var_name, var_name) < 0)
961 if(strcmp(current_var->var_name, var_name) > 0)
964 if(strcmp(current_var->frame, frame) < 0)
966 if(strcmp(current_var->frame, frame) > 0)
970 mc_stack_ignore_variable_t var = NULL;
971 var = xbt_new0(s_mc_stack_ignore_variable_t, 1);
972 var->var_name = strdup(var_name);
973 var->frame = strdup(frame);
975 if(strcmp(current_var->frame, frame) < 0)
976 xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor + 1, &var);
978 xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor, &var);
989 void MC_new_stack_area(void *stack, char *name, void* context, size_t size){
991 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
994 if(stacks_areas == NULL)
995 stacks_areas = xbt_dynar_new(sizeof(stack_region_t), NULL);
997 stack_region_t region = NULL;
998 region = xbt_new0(s_stack_region_t, 1);
999 region->address = stack;
1000 region->process_name = strdup(name);
1001 region->context = context;
1002 region->size = size;
1003 xbt_dynar_push(stacks_areas, ®ion);
1011 /************ DWARF ***********/
1013 xbt_dict_t MC_get_location_list(const char *elf_file){
1015 char *command = bprintf("objdump -Wo %s", elf_file);
1017 FILE *fp = popen(command, "r");
1020 perror("popen for objdump failed");
1024 int debug = 0; /*Detect if the program has been compiled with -g */
1026 xbt_dict_t location_list = xbt_dict_new_homogeneous(NULL);
1027 char *line = NULL, *loc_expr = NULL;
1031 xbt_dynar_t split = NULL;
1033 while ((read = getline(&line, &n, fp)) != -1) {
1035 /* Wipeout the new line character */
1036 line[read - 1] = '\0';
1038 xbt_str_trim(line, NULL);
1043 if(strlen(line) == 0)
1048 if(strncmp(line, elf_file, strlen(elf_file)) == 0)
1051 if(strncmp(line, "Contents", 8) == 0)
1054 if(strncmp(line, "Offset", 6) == 0){
1061 XBT_INFO("Your program must be compiled with -g");
1065 xbt_dynar_t loclist = xbt_dynar_new(sizeof(dw_location_entry_t), NULL);
1067 xbt_str_strip_spaces(line);
1068 split = xbt_str_split(line, " ");
1070 while(read != -1 && strcmp("<End", (char *)xbt_dynar_get_as(split, 1, char *)) != 0){
1072 dw_location_entry_t new_entry = xbt_new0(s_dw_location_entry_t, 1);
1073 new_entry->lowpc = strtoul((char *)xbt_dynar_get_as(split, 1, char *), NULL, 16);
1074 new_entry->highpc = strtoul((char *)xbt_dynar_get_as(split, 2, char *), NULL, 16);
1077 while(cursor_remove < 3){
1078 xbt_dynar_remove_at(split, 0, NULL);
1082 loc_expr = xbt_str_join(split, " ");
1083 xbt_str_ltrim(loc_expr, "(");
1084 xbt_str_rtrim(loc_expr, ")");
1085 new_entry->location = get_location(NULL, loc_expr);
1087 xbt_dynar_push(loclist, &new_entry);
1089 xbt_dynar_free(&split);
1092 read = getline(&line, &n, fp);
1094 line[read - 1] = '\0';
1095 xbt_str_strip_spaces(line);
1096 split = xbt_str_split(line, " ");
1102 char *key = bprintf("%d", (int)strtoul((char *)xbt_dynar_get_as(split, 0, char *), NULL, 16));
1103 xbt_dict_set(location_list, key, loclist, NULL);
1106 xbt_dynar_free(&split);
1114 return location_list;
1117 static dw_frame_t get_frame_by_offset(xbt_dict_t all_variables, unsigned long int offset){
1119 xbt_dict_cursor_t cursor = NULL;
1123 xbt_dict_foreach(all_variables, cursor, name, res) {
1124 if(offset >= res->start && offset < res->end){
1125 xbt_dict_cursor_free(&cursor);
1130 xbt_dict_cursor_free(&cursor);
1135 void MC_get_local_variables(const char *elf_file, xbt_dict_t location_list, xbt_dict_t *all_variables){
1137 char *command = bprintf("objdump -Wi %s", elf_file);
1139 FILE *fp = popen(command, "r");
1142 perror("popen for objdump failed");
1144 char *line = NULL, *origin, *abstract_origin, *current_frame = NULL;
1147 int valid_variable = 1;
1148 char *node_type = NULL, *location_type = NULL, *variable_name = NULL, *loc_expr = NULL;
1149 xbt_dynar_t split = NULL, split2 = NULL;
1151 xbt_dict_t variables_origin = xbt_dict_new_homogeneous(NULL);
1152 xbt_dict_t subprograms_origin = xbt_dict_new_homogeneous(NULL);
1153 char *subprogram_name = NULL, *subprogram_start = NULL, *subprogram_end = NULL;
1154 int new_frame = 0, new_variable = 0;
1155 dw_frame_t variable_frame, subroutine_frame = NULL;
1157 read = getline(&line, &n, fp);
1159 while (read != -1) {
1162 read = getline(&line, &n, fp);
1166 /* Wipeout the new line character */
1167 line[read - 1] = '\0';
1169 if(strlen(line) == 0){
1170 read = getline(&line, &n, fp);
1174 xbt_str_ltrim(line, NULL);
1175 xbt_str_strip_spaces(line);
1178 read = getline(&line, &n, fp);
1182 xbt_dynar_free(&split);
1183 split = xbt_str_split(line, " ");
1186 node_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1188 if(strcmp(node_type, "(DW_TAG_subprogram)") == 0){ /* New frame */
1190 dw_frame_t frame = NULL;
1192 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1193 subprogram_start = strdup(strtok(NULL, "<"));
1194 xbt_str_rtrim(subprogram_start, ">:");
1196 read = getline(&line, &n, fp);
1201 read = getline(&line, &n, fp);
1205 /* Wipeout the new line character */
1206 line[read - 1] = '\0';
1208 if(strlen(line) == 0){
1209 read = getline(&line, &n, fp);
1213 xbt_dynar_free(&split);
1214 xbt_str_rtrim(line, NULL);
1215 xbt_str_strip_spaces(line);
1216 split = xbt_str_split(line, " ");
1218 node_type = xbt_dynar_get_as(split, 1, char *);
1220 if(strncmp(node_type, "DW_AT_", 6) != 0)
1223 if(strcmp(node_type, "DW_AT_sibling") == 0){
1225 subprogram_end = strdup(xbt_dynar_get_as(split, 3, char*));
1226 xbt_str_ltrim(subprogram_end, "<0x");
1227 xbt_str_rtrim(subprogram_end, ">");
1229 }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){ /* Frame already in dict */
1232 abstract_origin = strdup(xbt_dynar_get_as(split, 2, char*));
1233 xbt_str_ltrim(abstract_origin, "<0x");
1234 xbt_str_rtrim(abstract_origin, ">");
1235 subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, abstract_origin);
1236 frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
1237 xbt_free(abstract_origin);
1239 }else if(strcmp(node_type, "DW_AT_name") == 0){
1242 xbt_free(current_frame);
1243 frame = xbt_new0(s_dw_frame_t, 1);
1244 frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1245 frame->variables = xbt_dict_new_homogeneous(NULL);
1246 frame->frame_base = xbt_new0(s_dw_location_t, 1);
1247 current_frame = strdup(frame->name);
1249 xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
1251 }else if(strcmp(node_type, "DW_AT_frame_base") == 0){
1253 location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1255 if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
1257 frame->frame_base = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
1261 xbt_str_strip_spaces(line);
1262 split2 = xbt_str_split(line, "(");
1263 xbt_dynar_remove_at(split2, 0, NULL);
1264 loc_expr = xbt_str_join(split2, " ");
1265 xbt_str_rtrim(loc_expr, ")");
1266 frame->frame_base = get_location(NULL, loc_expr);
1267 xbt_dynar_free(&split2);
1272 }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
1275 frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1277 }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
1280 frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1282 }else if(strcmp(node_type, "DW_AT_MIPS_linkage_name:") == 0){
1284 xbt_free(frame->name);
1285 xbt_free(current_frame);
1286 frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1287 current_frame = strdup(frame->name);
1288 xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
1292 read = getline(&line, &n, fp);
1297 frame->start = strtoul(subprogram_start, NULL, 16);
1298 if(subprogram_end != NULL)
1299 frame->end = strtoul(subprogram_end, NULL, 16);
1300 xbt_dict_set(*all_variables, frame->name, frame, NULL);
1303 xbt_free(subprogram_start);
1304 if(subprogram_end != NULL){
1305 xbt_free(subprogram_end);
1306 subprogram_end = NULL;
1310 }else if(strcmp(node_type, "(DW_TAG_variable)") == 0){ /* New variable */
1312 dw_local_variable_t var = NULL;
1314 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1315 origin = strdup(strtok(NULL, "<"));
1316 xbt_str_rtrim(origin, ">:");
1318 read = getline(&line, &n, fp);
1323 read = getline(&line, &n, fp);
1327 /* Wipeout the new line character */
1328 line[read - 1] = '\0';
1330 if(strlen(line) == 0){
1331 read = getline(&line, &n, fp);
1335 xbt_dynar_free(&split);
1336 xbt_str_rtrim(line, NULL);
1337 xbt_str_strip_spaces(line);
1338 split = xbt_str_split(line, " ");
1340 node_type = xbt_dynar_get_as(split, 1, char *);
1342 if(strncmp(node_type, "DW_AT_", 6) != 0)
1345 if(strcmp(node_type, "DW_AT_name") == 0){
1348 var = xbt_new0(s_dw_local_variable_t, 1);
1349 var->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1351 xbt_dict_set(variables_origin, origin, var->name, NULL);
1353 }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
1356 abstract_origin = xbt_dynar_get_as(split, 2, char *);
1357 xbt_str_ltrim(abstract_origin, "<0x");
1358 xbt_str_rtrim(abstract_origin, ">");
1360 variable_name = (char *)xbt_dict_get_or_null(variables_origin, abstract_origin);
1361 variable_frame = get_frame_by_offset(*all_variables, strtoul(abstract_origin, NULL, 16));
1362 var = xbt_dict_get_or_null(variable_frame->variables, variable_name);
1364 }else if(strcmp(node_type, "DW_AT_location") == 0){
1366 if(valid_variable == 1 && var != NULL){
1368 var->location = xbt_new0(s_dw_location_t, 1);
1370 location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1372 if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
1374 var->location = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
1378 xbt_str_strip_spaces(line);
1379 split2 = xbt_str_split(line, "(");
1380 xbt_dynar_remove_at(split2, 0, NULL);
1381 loc_expr = xbt_str_join(split2, " ");
1382 xbt_str_rtrim(loc_expr, ")");
1383 var->location = get_location(NULL, loc_expr);
1384 xbt_dynar_free(&split2);
1391 }else if(strcmp(node_type, "DW_AT_external") == 0){
1397 read = getline(&line, &n, fp);
1401 if(new_variable == 1 && valid_variable == 1){
1403 variable_frame = xbt_dict_get_or_null(*all_variables, current_frame);
1404 xbt_dict_set(variable_frame->variables, var->name, var, NULL);
1410 }else if(strcmp(node_type, "(DW_TAG_inlined_subroutine)") == 0){
1412 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1413 origin = strdup(strtok(NULL, "<"));
1414 xbt_str_rtrim(origin, ">:");
1416 read = getline(&line, &n, fp);
1420 /* Wipeout the new line character */
1421 line[read - 1] = '\0';
1424 read = getline(&line, &n, fp);
1428 if(strlen(line) == 0){
1429 read = getline(&line, &n, fp);
1433 xbt_dynar_free(&split);
1434 xbt_str_rtrim(line, NULL);
1435 xbt_str_strip_spaces(line);
1436 split = xbt_str_split(line, " ");
1438 if(strncmp(xbt_dynar_get_as(split, 1, char *), "DW_AT_", 6) != 0)
1441 node_type = xbt_dynar_get_as(split, 1, char *);
1443 if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
1445 origin = xbt_dynar_get_as(split, 2, char *);
1446 xbt_str_ltrim(origin, "<0x");
1447 xbt_str_rtrim(origin, ">");
1449 subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, origin);
1450 subroutine_frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
1452 }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
1454 subroutine_frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1456 }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
1458 subroutine_frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1461 read = getline(&line, &n, fp);
1467 read = getline(&line, &n, fp);
1473 xbt_dynar_free(&split);
1480 static dw_location_t get_location(xbt_dict_t location_list, char *expr){
1482 dw_location_t loc = xbt_new0(s_dw_location_t, 1);
1484 if(location_list != NULL){
1486 char *key = bprintf("%d", (int)strtoul(expr, NULL, 16));
1487 loc->type = e_dw_loclist;
1488 loc->location.loclist = (xbt_dynar_t)xbt_dict_get_or_null(location_list, key);
1489 if(loc->location.loclist == NULL)
1490 XBT_INFO("Key not found in loclist");
1497 char *tok = NULL, *tok2 = NULL;
1499 xbt_dynar_t tokens1 = xbt_str_split(expr, ";");
1500 xbt_dynar_t tokens2;
1502 loc->type = e_dw_compose;
1503 loc->location.compose = xbt_dynar_new(sizeof(dw_location_t), NULL);
1505 while(cursor < xbt_dynar_length(tokens1)){
1507 tok = xbt_dynar_get_as(tokens1, cursor, char*);
1508 tokens2 = xbt_str_split(tok, " ");
1509 tok2 = xbt_dynar_get_as(tokens2, 0, char*);
1511 if(strncmp(tok2, "DW_OP_reg", 9) == 0){
1512 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1513 new_element->type = e_dw_register;
1514 new_element->location.reg = atoi(strtok(tok2, "DW_OP_reg"));
1515 xbt_dynar_push(loc->location.compose, &new_element);
1516 }else if(strcmp(tok2, "DW_OP_fbreg:") == 0){
1517 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1518 new_element->type = e_dw_fbregister_op;
1519 new_element->location.fbreg_op = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1520 xbt_dynar_push(loc->location.compose, &new_element);
1521 }else if(strncmp(tok2, "DW_OP_breg", 10) == 0){
1522 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1523 new_element->type = e_dw_bregister_op;
1524 new_element->location.breg_op.reg = atoi(strtok(tok2, "DW_OP_breg"));
1525 new_element->location.breg_op.offset = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1526 xbt_dynar_push(loc->location.compose, &new_element);
1527 }else if(strncmp(tok2, "DW_OP_lit", 9) == 0){
1528 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1529 new_element->type = e_dw_lit;
1530 new_element->location.lit = atoi(strtok(tok2, "DW_OP_lit"));
1531 xbt_dynar_push(loc->location.compose, &new_element);
1532 }else if(strcmp(tok2, "DW_OP_piece:") == 0){
1533 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1534 new_element->type = e_dw_piece;
1535 new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1536 /*if(strlen(xbt_dynar_get_as(tokens2, 1, char*)) > 1)
1537 new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1539 new_element->location.piece = xbt_dynar_get_as(tokens2, 1, char*)[0] - '0';*/
1540 xbt_dynar_push(loc->location.compose, &new_element);
1541 }else if(strcmp(tok2, "DW_OP_plus_uconst:") == 0){
1542 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1543 new_element->type = e_dw_plus_uconst;
1544 new_element->location.plus_uconst = atoi(xbt_dynar_get_as(tokens2, 1, char *));
1545 xbt_dynar_push(loc->location.compose, &new_element);
1546 }else if(strcmp(tok, "DW_OP_abs") == 0 ||
1547 strcmp(tok, "DW_OP_and") == 0 ||
1548 strcmp(tok, "DW_OP_div") == 0 ||
1549 strcmp(tok, "DW_OP_minus") == 0 ||
1550 strcmp(tok, "DW_OP_mod") == 0 ||
1551 strcmp(tok, "DW_OP_mul") == 0 ||
1552 strcmp(tok, "DW_OP_neg") == 0 ||
1553 strcmp(tok, "DW_OP_not") == 0 ||
1554 strcmp(tok, "DW_OP_or") == 0 ||
1555 strcmp(tok, "DW_OP_plus") == 0){
1556 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1557 new_element->type = e_dw_arithmetic;
1558 new_element->location.arithmetic = strdup(strtok(tok2, "DW_OP_"));
1559 xbt_dynar_push(loc->location.compose, &new_element);
1560 }else if(strcmp(tok, "DW_OP_stack_value") == 0){
1561 }else if(strcmp(tok2, "DW_OP_deref_size:") == 0){
1562 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1563 new_element->type = e_dw_deref;
1564 new_element->location.deref_size = (unsigned int short) atoi(xbt_dynar_get_as(tokens2, 1, char*));
1565 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1566 new_element->location.deref_size = atoi(xbt_dynar_get_as(tokens, cursor, char*));
1568 new_element->location.deref_size = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
1569 xbt_dynar_push(loc->location.compose, &new_element);
1570 }else if(strcmp(tok, "DW_OP_deref") == 0){
1571 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1572 new_element->type = e_dw_deref;
1573 new_element->location.deref_size = sizeof(void *);
1574 xbt_dynar_push(loc->location.compose, &new_element);
1575 }else if(strcmp(tok2, "DW_OP_constu:") == 0){
1576 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1577 new_element->type = e_dw_uconstant;
1578 new_element->location.uconstant.bytes = 1;
1579 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1580 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1581 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens, cursor, char*)));
1583 new_element->location.uconstant.value = (unsigned long int)(xbt_dynar_get_as(tokens, cursor, char*)[0] - '0');*/
1584 xbt_dynar_push(loc->location.compose, &new_element);
1585 }else if(strcmp(tok2, "DW_OP_consts:") == 0){
1586 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1587 new_element->type = e_dw_sconstant;
1588 new_element->location.sconstant.bytes = 1;
1589 new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1590 xbt_dynar_push(loc->location.compose, &new_element);
1591 }else if(strcmp(tok2, "DW_OP_const1u:") == 0 ||
1592 strcmp(tok2, "DW_OP_const2u:") == 0 ||
1593 strcmp(tok2, "DW_OP_const4u:") == 0 ||
1594 strcmp(tok2, "DW_OP_const8u:") == 0){
1595 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1596 new_element->type = e_dw_uconstant;
1597 new_element->location.uconstant.bytes = tok2[11] - '0';
1598 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1599 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1600 new_element->location.constant.value = atoi(xbt_dynar_get_as(tokens, cursor, char*));
1602 new_element->location.constant.value = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
1603 xbt_dynar_push(loc->location.compose, &new_element);
1604 }else if(strcmp(tok, "DW_OP_const1s") == 0 ||
1605 strcmp(tok, "DW_OP_const2s") == 0 ||
1606 strcmp(tok, "DW_OP_const4s") == 0 ||
1607 strcmp(tok, "DW_OP_const8s") == 0){
1608 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1609 new_element->type = e_dw_sconstant;
1610 new_element->location.sconstant.bytes = tok2[11] - '0';
1611 new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1612 xbt_dynar_push(loc->location.compose, &new_element);
1614 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1615 new_element->type = e_dw_unsupported;
1616 xbt_dynar_push(loc->location.compose, &new_element);
1620 xbt_dynar_free(&tokens2);
1624 xbt_dynar_free(&tokens1);
1633 void print_local_variables(xbt_dict_t list){
1635 dw_location_entry_t entry;
1636 dw_location_t location_entry;
1637 unsigned int cursor3 = 0, cursor4 = 0;
1638 xbt_dict_cursor_t cursor = 0, cursor2 = 0;
1640 char *frame_name, *variable_name;
1641 dw_frame_t current_frame;
1642 dw_local_variable_t current_variable;
1644 xbt_dict_foreach(list, cursor, frame_name, current_frame){
1645 fprintf(stderr, "Frame name : %s\n", current_frame->name);
1646 fprintf(stderr, "Location type : %d\n", current_frame->frame_base->type);
1647 xbt_dict_foreach((xbt_dict_t)current_frame->variables, cursor2, variable_name, current_variable){
1648 fprintf(stderr, "Name : %s\n", current_variable->name);
1649 if(current_variable->location == NULL)
1651 fprintf(stderr, "Location type : %d\n", current_variable->location->type);
1652 switch(current_variable->location->type){
1654 xbt_dynar_foreach(current_variable->location->location.loclist, cursor3, entry){
1655 fprintf(stderr, "Lowpc : %lx, Highpc : %lx,", entry->lowpc, entry->highpc);
1656 switch(entry->location->type){
1657 case e_dw_register :
1658 fprintf(stderr, " Location : in register %d\n", entry->location->location.reg);
1660 case e_dw_bregister_op:
1661 fprintf(stderr, " Location : Add %d to the value in register %d\n", entry->location->location.breg_op.offset, entry->location->location.breg_op.reg);
1664 fprintf(stderr, "Value already kwnown : %d\n", entry->location->location.lit);
1666 case e_dw_fbregister_op:
1667 fprintf(stderr, " Location : %d bytes from logical frame pointer\n", entry->location->location.fbreg_op);
1670 fprintf(stderr, " Location :\n");
1671 xbt_dynar_foreach(entry->location->location.compose, cursor4, location_entry){
1672 switch(location_entry->type){
1673 case e_dw_register :
1674 fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
1676 case e_dw_bregister_op:
1677 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);
1680 fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
1682 case e_dw_fbregister_op:
1683 fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
1686 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);
1688 case e_dw_arithmetic :
1689 fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
1692 fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
1694 case e_dw_uconstant :
1695 fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
1697 case e_dw_sconstant :
1698 fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
1701 fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
1707 fprintf(stderr, "Location type not supported\n");
1714 fprintf(stderr, "Location :\n");
1715 xbt_dynar_foreach(current_variable->location->location.compose, cursor4, location_entry){
1716 switch(location_entry->type){
1717 case e_dw_register :
1718 fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
1720 case e_dw_bregister_op:
1721 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);
1724 fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
1726 case e_dw_fbregister_op:
1727 fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
1730 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);
1732 case e_dw_arithmetic :
1733 fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
1736 fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
1738 case e_dw_uconstant :
1739 fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
1741 case e_dw_sconstant :
1742 fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
1745 fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
1751 fprintf(stderr, "Location type not supported\n");
1759 static void MC_get_global_variables(char *elf_file){
1763 char *command = bprintf("objdump -t -j .data -j .bss %s", elf_file);
1765 fp = popen(command, "r");
1768 perror("popen failed");
1772 if(mc_global_variables == NULL)
1773 mc_global_variables = xbt_dynar_new(sizeof(global_variable_t), global_variable_free_voidp);
1779 xbt_dynar_t line_tokens = NULL;
1780 unsigned long offset;
1782 int type = strcmp(elf_file, xbt_binary_name); /* 0 = binary, other = libsimgrid */
1784 while ((read = getline(&line, &n, fp)) != -1){
1789 /* Wipeout the new line character */
1790 line[read - 1] = '\0';
1792 xbt_str_strip_spaces(line);
1793 xbt_str_ltrim(line, NULL);
1795 line_tokens = xbt_str_split(line, NULL);
1797 if(xbt_dynar_length(line_tokens) <= 4 || strcmp(xbt_dynar_get_as(line_tokens, 0, char *), "SYMBOL") == 0)
1800 if((strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "__gcov", 6) == 0)
1801 || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "gcov", 4) == 0)
1802 || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), ".data") == 0)
1803 || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), ".bss") == 0)
1804 || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "stderr", 6) == 0)
1805 || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "counter", 7) == 0)
1806 || ((size_t)strtoul(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 2, char*), NULL, 16) == 0))
1809 global_variable_t var = xbt_new0(s_global_variable_t, 1);
1812 var->address = (void *)strtoul(xbt_dynar_get_as(line_tokens, 0, char*), NULL, 16);
1814 offset = strtoul(xbt_dynar_get_as(line_tokens, 0, char*), NULL, 16);
1815 var->address = (char *)start_text_libsimgrid+offset;
1818 var->size = (size_t)strtoul(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 2, char*), NULL, 16);
1819 var->name = strdup(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*));
1821 if(data_bss_ignore_size(var->address) > 0)
1822 global_variable_free(var);
1824 xbt_dynar_push(mc_global_variables, &var);
1826 xbt_dynar_free(&line_tokens);
1836 void global_variable_free(global_variable_t v){
1841 void global_variable_free_voidp(void *v){
1842 global_variable_free((global_variable_t) * (void **) v);