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);
126 void MC_do_the_modelcheck_for_real() {
129 mc_comp_times = xbt_new0(s_mc_comparison_times_t, 1);
132 if (!_sg_mc_property_file || _sg_mc_property_file[0]=='\0') {
133 if (mc_reduce_kind==e_mc_reduce_unset)
134 mc_reduce_kind=e_mc_reduce_dpor;
136 XBT_INFO("Check a safety property");
137 MC_modelcheck_safety();
141 if (mc_reduce_kind==e_mc_reduce_unset)
142 mc_reduce_kind=e_mc_reduce_none;
144 XBT_INFO("Check the liveness property %s",_sg_mc_property_file);
145 MC_automaton_load(_sg_mc_property_file);
146 MC_modelcheck_liveness();
151 void MC_compare(void){
157 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
159 mc_time = xbt_new0(double, simix_process_maxpid);
161 /* mc_time refers to clock for each process -> ignore it for heap comparison */
163 for(i = 0; i<simix_process_maxpid; i++)
164 MC_ignore_heap(&(mc_time[i]), sizeof(double));
168 /* Initialize the data structures that must be persistent across every
169 iteration of the model-checker (in RAW memory) */
173 MC_init_memory_map_info();
175 mc_local_variables = xbt_dict_new_homogeneous(NULL);
177 /* Get local variables in binary for state equality detection */
178 xbt_dict_t binary_location_list = MC_get_location_list(xbt_binary_name);
179 MC_get_local_variables(xbt_binary_name, binary_location_list, &mc_local_variables);
181 /* Get local variables in libsimgrid for state equality detection */
182 xbt_dict_t libsimgrid_location_list = MC_get_location_list(libsimgrid_path);
183 MC_get_local_variables(libsimgrid_path, libsimgrid_location_list, &mc_local_variables);
185 xbt_dict_free(&libsimgrid_location_list);
186 xbt_dict_free(&binary_location_list);
188 /* Get .plt section (start and end addresses) for data libsimgrid and data program comparison */
189 get_libsimgrid_plt_section();
190 get_binary_plt_section();
192 /* Get global variables */
193 MC_get_global_variables(xbt_binary_name);
194 MC_get_global_variables(libsimgrid_path);
198 /* Ignore some variables from xbt/ex.h used by exception e for stacks comparison */
199 MC_ignore_stack("e", "*");
200 MC_ignore_stack("__ex_cleanup", "*");
201 MC_ignore_stack("__ex_mctx_en", "*");
202 MC_ignore_stack("__ex_mctx_me", "*");
203 MC_ignore_stack("__xbt_ex_ctx_ptr", "*");
204 MC_ignore_stack("_log_ev", "*");
205 MC_ignore_stack("_throw_ctx", "*");
206 MC_ignore_stack("ctx", "*");
208 MC_ignore_stack("next_context", "smx_ctx_sysv_suspend_serial");
209 MC_ignore_stack("i", "smx_ctx_sysv_suspend_serial");
211 MC_ignore_data_bss(&mc_comp_times, sizeof(mc_comp_times));
212 MC_ignore_data_bss(&mc_snapshot_comparison_time, sizeof(mc_snapshot_comparison_time));
219 void MC_modelcheck_safety(void)
221 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
223 /* Check if MC is already initialized */
224 if (initial_state_safety)
227 mc_time = xbt_new0(double, simix_process_maxpid);
229 /* Initialize the data structures that must be persistent across every
230 iteration of the model-checker (in RAW memory) */
234 /* Initialize statistics */
235 mc_stats = xbt_new0(s_mc_stats_t, 1);
236 mc_stats->state_size = 1;
238 /* Create exploration stack */
239 mc_stack_safety = xbt_fifo_new();
243 if(_sg_mc_visited > 0){
247 MC_init_memory_map_info();
248 get_libsimgrid_plt_section();
249 get_binary_plt_section();
256 /* Save the initial state */
257 initial_state_safety = xbt_new0(s_mc_global_t, 1);
258 initial_state_safety->snapshot = MC_take_snapshot();
269 void MC_modelcheck_liveness(){
271 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
277 /* Initialize statistics */
278 mc_stats_pair = xbt_new0(s_mc_stats_pair_t, 1);
280 /* Create exploration stack */
281 mc_stack_liveness = xbt_fifo_new();
283 initial_state_liveness = xbt_new0(s_mc_global_t, 1);
290 MC_print_statistics_pairs(mc_stats_pair);
306 int SIMIX_pre_mc_random(smx_simcall_t simcall, int min, int max){
308 return simcall->mc_value;
312 int MC_random(int min, int max)
314 /*FIXME: return mc_current_state->executed_transition->random.value;*/
315 return simcall_mc_random(min, max);
319 * \brief Schedules all the process that are ready to run
321 void MC_wait_for_requests(void)
323 smx_process_t process;
327 while (!xbt_dynar_is_empty(simix_global->process_to_run)) {
328 SIMIX_process_runall();
329 xbt_dynar_foreach(simix_global->process_that_ran, iter, process) {
330 req = &process->simcall;
331 if (req->call != SIMCALL_NONE && !MC_request_is_visible(req))
332 SIMIX_simcall_pre(req, 0);
337 int MC_deadlock_check()
339 int deadlock = FALSE;
340 smx_process_t process;
341 if(xbt_swag_size(simix_global->process_list)){
343 xbt_swag_foreach(process, simix_global->process_list){
344 if(process->simcall.call != SIMCALL_NONE
345 && MC_request_is_enabled(&process->simcall)){
355 * \brief Re-executes from the state at position start all the transitions indicated by
356 * a given model-checker stack.
357 * \param stack The stack with the transitions to execute.
358 * \param start Start index to begin the re-execution.
360 void MC_replay(xbt_fifo_t stack, int start)
362 int raw_mem = (mmalloc_get_current_heap() == raw_heap);
366 smx_simcall_t req = NULL, saved_req = NULL;
367 xbt_fifo_item_t item, start_item;
370 XBT_DEBUG("**** Begin Replay ****");
373 /* Restore the initial state */
374 MC_restore_snapshot(initial_state_safety->snapshot);
375 /* At the moment of taking the snapshot the raw heap was set, so restoring
376 * it will set it back again, we have to unset it to continue */
380 start_item = xbt_fifo_get_last_item(stack);
383 start_item = xbt_fifo_get_prev_item(start_item);
388 /* Traverse the stack from the state at position start and re-execute the transitions */
389 for (item = start_item;
390 item != xbt_fifo_get_first_item(stack);
391 item = xbt_fifo_get_prev_item(item)) {
393 state = (mc_state_t) xbt_fifo_get_item_content(item);
394 saved_req = MC_state_get_executed_request(state, &value);
397 /* because we got a copy of the executed request, we have to fetch the
398 real one, pointed by the request field of the issuer process */
399 req = &saved_req->issuer->simcall;
401 /* Debug information */
402 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
403 req_str = MC_request_to_string(req, value);
404 XBT_DEBUG("Replay: %s (%p)", req_str, state);
409 SIMIX_simcall_pre(req, value);
410 MC_wait_for_requests();
412 /* Update statistics */
413 mc_stats->visited_states++;
414 mc_stats->executed_transitions++;
416 XBT_DEBUG("**** End Replay ****");
426 void MC_replay_liveness(xbt_fifo_t stack, int all_stack)
429 initial_state_liveness->raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
433 smx_simcall_t req = NULL, saved_req = NULL;
434 xbt_fifo_item_t item;
436 mc_pair_stateless_t pair;
439 XBT_DEBUG("**** Begin Replay ****");
441 /* Restore the initial state */
442 MC_restore_snapshot(initial_state_liveness->snapshot);
444 /* At the moment of taking the snapshot the raw heap was set, so restoring
445 * it will set it back again, we have to unset it to continue */
446 if(!initial_state_liveness->raw_mem_set)
451 item = xbt_fifo_get_last_item(stack);
453 while(depth <= xbt_fifo_size(stack)){
455 pair = (mc_pair_stateless_t) xbt_fifo_get_item_content(item);
456 state = (mc_state_t) pair->graph_state;
458 if(pair->requests > 0){
460 saved_req = MC_state_get_executed_request(state, &value);
461 //XBT_DEBUG("SavedReq->call %u", saved_req->call);
463 if(saved_req != NULL){
464 /* because we got a copy of the executed request, we have to fetch the
465 real one, pointed by the request field of the issuer process */
466 req = &saved_req->issuer->simcall;
467 //XBT_DEBUG("Req->call %u", req->call);
469 /* Debug information */
470 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
471 req_str = MC_request_to_string(req, value);
472 XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
478 SIMIX_simcall_pre(req, value);
479 MC_wait_for_requests();
484 /* Update statistics */
485 mc_stats_pair->visited_pairs++;
487 item = xbt_fifo_get_prev_item(item);
492 /* Traverse the stack from the initial state and re-execute the transitions */
493 for (item = xbt_fifo_get_last_item(stack);
494 item != xbt_fifo_get_first_item(stack);
495 item = xbt_fifo_get_prev_item(item)) {
497 pair = (mc_pair_stateless_t) xbt_fifo_get_item_content(item);
498 state = (mc_state_t) pair->graph_state;
500 if(pair->requests > 0){
502 saved_req = MC_state_get_executed_request(state, &value);
503 //XBT_DEBUG("SavedReq->call %u", saved_req->call);
505 if(saved_req != NULL){
506 /* because we got a copy of the executed request, we have to fetch the
507 real one, pointed by the request field of the issuer process */
508 req = &saved_req->issuer->simcall;
509 //XBT_DEBUG("Req->call %u", req->call);
511 /* Debug information */
512 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
513 req_str = MC_request_to_string(req, value);
514 XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
520 SIMIX_simcall_pre(req, value);
521 MC_wait_for_requests();
526 /* Update statistics */
527 mc_stats_pair->visited_pairs++;
531 XBT_DEBUG("**** End Replay ****");
533 if(initial_state_liveness->raw_mem_set)
541 * \brief Dumps the contents of a model-checker's stack and shows the actual
543 * \param stack The stack to dump
545 void MC_dump_stack_safety(xbt_fifo_t stack)
548 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
550 MC_show_stack_safety(stack);
552 if(!_sg_mc_checkpoint){
557 while ((state = (mc_state_t) xbt_fifo_pop(stack)) != NULL)
558 MC_state_delete(state);
571 void MC_show_stack_safety(xbt_fifo_t stack)
575 xbt_fifo_item_t item;
577 char *req_str = NULL;
579 for (item = xbt_fifo_get_last_item(stack);
580 (item ? (state = (mc_state_t) (xbt_fifo_get_item_content(item)))
581 : (NULL)); item = xbt_fifo_get_prev_item(item)) {
582 req = MC_state_get_executed_request(state, &value);
584 req_str = MC_request_to_string(req, value);
585 XBT_INFO("%s", req_str);
591 void MC_show_deadlock(smx_simcall_t req)
593 /*char *req_str = NULL;*/
594 XBT_INFO("**************************");
595 XBT_INFO("*** DEAD-LOCK DETECTED ***");
596 XBT_INFO("**************************");
597 XBT_INFO("Locked request:");
598 /*req_str = MC_request_to_string(req);
599 XBT_INFO("%s", req_str);
601 XBT_INFO("Counter-example execution trace:");
602 MC_dump_stack_safety(mc_stack_safety);
606 void MC_show_stack_liveness(xbt_fifo_t stack){
608 mc_pair_stateless_t pair;
609 xbt_fifo_item_t item;
611 char *req_str = NULL;
613 for (item = xbt_fifo_get_last_item(stack);
614 (item ? (pair = (mc_pair_stateless_t) (xbt_fifo_get_item_content(item)))
615 : (NULL)); item = xbt_fifo_get_prev_item(item)) {
616 req = MC_state_get_executed_request(pair->graph_state, &value);
618 if(pair->requests>0){
619 req_str = MC_request_to_string(req, value);
620 XBT_INFO("%s", req_str);
623 XBT_INFO("End of system requests but evolution in Büchi automaton");
629 void MC_dump_stack_liveness(xbt_fifo_t stack){
631 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
633 mc_pair_stateless_t pair;
636 while ((pair = (mc_pair_stateless_t) xbt_fifo_pop(stack)) != NULL)
637 pair_stateless_free(pair);
646 void MC_print_statistics(mc_stats_t stats)
648 //XBT_INFO("State space size ~= %lu", stats->state_size);
649 XBT_INFO("Expanded states = %lu", stats->expanded_states);
650 XBT_INFO("Visited states = %lu", stats->visited_states);
651 XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
652 XBT_INFO("Expanded / Visited = %lf",
653 (double) stats->visited_states / stats->expanded_states);
654 /*XBT_INFO("Exploration coverage = %lf",
655 (double)stats->expanded_states / stats->state_size); */
658 void MC_print_statistics_pairs(mc_stats_pair_t stats)
660 XBT_INFO("Expanded pairs = %lu", stats->expanded_pairs);
661 XBT_INFO("Visited pairs = %lu", stats->visited_pairs);
662 //XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
663 XBT_INFO("Expanded / Visited = %lf",
664 (double) stats->visited_pairs / stats->expanded_pairs);
666 if(mmalloc_get_current_heap() == raw_heap)
670 void MC_assert(int prop)
672 if (MC_is_active() && !prop){
673 XBT_INFO("**************************");
674 XBT_INFO("*** PROPERTY NOT VALID ***");
675 XBT_INFO("**************************");
676 XBT_INFO("Counter-example execution trace:");
677 MC_dump_stack_safety(mc_stack_safety);
678 MC_print_statistics(mc_stats);
683 static void MC_assert_pair(int prop){
684 if (MC_is_active() && !prop) {
685 XBT_INFO("**************************");
686 XBT_INFO("*** PROPERTY NOT VALID ***");
687 XBT_INFO("**************************");
688 //XBT_INFO("Counter-example execution trace:");
689 MC_show_stack_liveness(mc_stack_liveness);
690 //MC_dump_snapshot_stack(mc_snapshot_stack);
691 MC_print_statistics_pairs(mc_stats_pair);
696 void MC_process_clock_add(smx_process_t process, double amount)
698 mc_time[process->pid] += amount;
701 double MC_process_clock_get(smx_process_t process)
705 return mc_time[process->pid];
713 void MC_automaton_load(const char *file){
715 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
719 if (_mc_property_automaton == NULL)
720 _mc_property_automaton = xbt_automaton_new();
722 xbt_automaton_load(_mc_property_automaton,file);
731 void MC_automaton_new_propositional_symbol(const char* id, void* fct) {
733 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
737 if (_mc_property_automaton == NULL)
738 _mc_property_automaton = xbt_automaton_new();
740 xbt_new_propositional_symbol(_mc_property_automaton,id,fct);
749 /************ MC_ignore ***********/
751 void heap_ignore_region_free(mc_heap_ignore_region_t r){
755 void heap_ignore_region_free_voidp(void *r){
756 heap_ignore_region_free((mc_heap_ignore_region_t) * (void **) r);
759 void MC_ignore_heap(void *address, size_t size){
761 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
765 mc_heap_ignore_region_t region = NULL;
766 region = xbt_new0(s_mc_heap_ignore_region_t, 1);
767 region->address = address;
770 region->block = ((char*)address - (char*)((xbt_mheap_t)std_heap)->heapbase) / BLOCKSIZE + 1;
772 if(((xbt_mheap_t)std_heap)->heapinfo[region->block].type == 0){
773 region->fragment = -1;
774 ((xbt_mheap_t)std_heap)->heapinfo[region->block].busy_block.ignore = 1;
776 region->fragment = ((uintptr_t) (ADDR2UINT (address) % (BLOCKSIZE))) >> ((xbt_mheap_t)std_heap)->heapinfo[region->block].type;
777 ((xbt_mheap_t)std_heap)->heapinfo[region->block].busy_frag.ignore[region->fragment] = 1;
780 if(mc_heap_comparison_ignore == NULL){
781 mc_heap_comparison_ignore = xbt_dynar_new(sizeof(mc_heap_ignore_region_t), heap_ignore_region_free_voidp);
782 xbt_dynar_push(mc_heap_comparison_ignore, ®ion);
788 unsigned int cursor = 0;
789 mc_heap_ignore_region_t current_region;
791 int end = xbt_dynar_length(mc_heap_comparison_ignore) - 1;
794 cursor = (start + end) / 2;
795 current_region = (mc_heap_ignore_region_t)xbt_dynar_get_as(mc_heap_comparison_ignore, cursor, mc_heap_ignore_region_t);
796 if(current_region->address == address){
797 heap_ignore_region_free(region);
802 if(current_region->address < address)
804 if(current_region->address > address)
808 if(current_region->address < address)
809 xbt_dynar_insert_at(mc_heap_comparison_ignore, cursor + 1, ®ion);
811 xbt_dynar_insert_at(mc_heap_comparison_ignore, cursor, ®ion);
819 void MC_remove_ignore_heap(void *address, size_t size){
821 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
825 unsigned int cursor = 0;
827 int end = xbt_dynar_length(mc_heap_comparison_ignore) - 1;
828 mc_heap_ignore_region_t region;
829 int ignore_found = 0;
832 cursor = (start + end) / 2;
833 region = (mc_heap_ignore_region_t)xbt_dynar_get_as(mc_heap_comparison_ignore, cursor, mc_heap_ignore_region_t);
834 if(region->address == address){
838 if(region->address < address)
840 if(region->address > address){
841 if((char * )region->address <= ((char *)address + size)){
849 if(ignore_found == 1){
850 xbt_dynar_remove_at(mc_heap_comparison_ignore, cursor, NULL);
851 MC_remove_ignore_heap(address, size);
861 void MC_ignore_data_bss(void *address, size_t size){
863 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
867 if(mc_data_bss_comparison_ignore == NULL)
868 mc_data_bss_comparison_ignore = xbt_dynar_new(sizeof(mc_data_bss_ignore_variable_t), NULL);
870 mc_data_bss_ignore_variable_t var = NULL;
871 var = xbt_new0(s_mc_data_bss_ignore_variable_t, 1);
872 var->address = address;
875 if(xbt_dynar_is_empty(mc_data_bss_comparison_ignore)){
877 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, 0, &var);
881 unsigned int cursor = 0;
883 int end = xbt_dynar_length(mc_data_bss_comparison_ignore) - 1;
884 mc_data_bss_ignore_variable_t current_var = NULL;
887 cursor = (start + end) / 2;
888 current_var = (mc_data_bss_ignore_variable_t)xbt_dynar_get_as(mc_data_bss_comparison_ignore, cursor, mc_data_bss_ignore_variable_t);
889 if(current_var->address == address){
895 if(current_var->address < address)
897 if(current_var->address > address)
901 if(current_var->address < address)
902 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, cursor + 1, &var);
904 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, cursor, &var);
908 /* Remove variable from mc_global_variables */
910 if(mc_global_variables != NULL){
912 unsigned int cursor = 0;
914 int end = xbt_dynar_length(mc_global_variables) - 1;
915 global_variable_t current_var;
919 cursor = (start + end) / 2;
920 current_var = (global_variable_t)xbt_dynar_get_as(mc_global_variables, cursor, global_variable_t);
921 if(current_var->address == var->address){
925 if(current_var->address < address)
927 if(current_var->address > address)
932 xbt_dynar_remove_at(mc_global_variables, cursor, NULL);
942 static size_t data_bss_ignore_size(void *address){
943 unsigned int cursor = 0;
945 int end = xbt_dynar_length(mc_data_bss_comparison_ignore) - 1;
946 mc_data_bss_ignore_variable_t var;
949 cursor = (start + end) / 2;
950 var = (mc_data_bss_ignore_variable_t)xbt_dynar_get_as(mc_data_bss_comparison_ignore, cursor, mc_data_bss_ignore_variable_t);
951 if(var->address == address)
953 if(var->address < address){
954 if((void *)((char *)var->address + var->size) > address)
955 return (char *)var->address + var->size - (char*)address;
959 if(var->address > address)
968 void MC_ignore_stack(const char *var_name, const char *frame_name){
970 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
974 if(mc_stack_comparison_ignore == NULL)
975 mc_stack_comparison_ignore = xbt_dynar_new(sizeof(mc_stack_ignore_variable_t), NULL);
977 if(xbt_dynar_is_empty(mc_stack_comparison_ignore)){
979 mc_stack_ignore_variable_t var = NULL;
980 var = xbt_new0(s_mc_stack_ignore_variable_t, 1);
981 var->var_name = strdup(var_name);
982 var->frame = strdup(frame_name);
984 xbt_dynar_insert_at(mc_stack_comparison_ignore, 0, &var);
988 unsigned int cursor = 0;
990 int end = xbt_dynar_length(mc_stack_comparison_ignore) - 1;
991 mc_stack_ignore_variable_t current_var = NULL;
994 cursor = (start + end) / 2;
995 current_var = (mc_stack_ignore_variable_t)xbt_dynar_get_as(mc_stack_comparison_ignore, cursor, mc_stack_ignore_variable_t);
996 if(strcmp(current_var->frame, frame_name) == 0){
997 if(strcmp(current_var->var_name, var_name) == 0){
1003 if(strcmp(current_var->var_name, var_name) < 0)
1005 if(strcmp(current_var->var_name, var_name) > 0)
1008 if(strcmp(current_var->frame, frame_name) < 0)
1010 if(strcmp(current_var->frame, frame_name) > 0)
1014 mc_stack_ignore_variable_t var = NULL;
1015 var = xbt_new0(s_mc_stack_ignore_variable_t, 1);
1016 var->var_name = strdup(var_name);
1017 var->frame = strdup(frame_name);
1019 if(strcmp(current_var->frame, frame_name) < 0)
1020 xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor + 1, &var);
1022 xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor, &var);
1026 /* Remove variable from mc_local_variables */
1028 if(mc_local_variables != NULL){
1030 if(strcmp(frame_name, "*") != 0){
1031 dw_frame_t frame = xbt_dict_get_or_null(mc_local_variables, frame_name);
1033 xbt_dict_remove(frame->variables, var_name);
1045 void MC_new_stack_area(void *stack, char *name, void* context, size_t size){
1047 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
1050 if(stacks_areas == NULL)
1051 stacks_areas = xbt_dynar_new(sizeof(stack_region_t), NULL);
1053 stack_region_t region = NULL;
1054 region = xbt_new0(s_stack_region_t, 1);
1055 region->address = stack;
1056 region->process_name = strdup(name);
1057 region->context = context;
1058 region->size = size;
1059 region->block = ((char*)stack - (char*)((xbt_mheap_t)std_heap)->heapbase) / BLOCKSIZE + 1;
1060 xbt_dynar_push(stacks_areas, ®ion);
1068 /************ DWARF ***********/
1070 xbt_dict_t MC_get_location_list(const char *elf_file){
1072 char *command = bprintf("objdump -Wo %s", elf_file);
1074 FILE *fp = popen(command, "r");
1077 perror("popen for objdump failed");
1081 int debug = 0; /*Detect if the program has been compiled with -g */
1083 xbt_dict_t location_list = xbt_dict_new_homogeneous(NULL);
1084 char *line = NULL, *loc_expr = NULL;
1088 xbt_dynar_t split = NULL;
1090 while ((read = xbt_getline(&line, &n, fp)) != -1) {
1092 /* Wipeout the new line character */
1093 line[read - 1] = '\0';
1095 xbt_str_trim(line, NULL);
1100 if(strlen(line) == 0)
1105 if(strncmp(line, elf_file, strlen(elf_file)) == 0)
1108 if(strncmp(line, "Contents", 8) == 0)
1111 if(strncmp(line, "Offset", 6) == 0){
1118 XBT_INFO("Your program must be compiled with -g");
1122 xbt_dynar_t loclist = xbt_dynar_new(sizeof(dw_location_entry_t), NULL);
1124 xbt_str_strip_spaces(line);
1125 split = xbt_str_split(line, " ");
1127 while(read != -1 && strcmp("<End", (char *)xbt_dynar_get_as(split, 1, char *)) != 0){
1129 dw_location_entry_t new_entry = xbt_new0(s_dw_location_entry_t, 1);
1130 new_entry->lowpc = strtoul((char *)xbt_dynar_get_as(split, 1, char *), NULL, 16);
1131 new_entry->highpc = strtoul((char *)xbt_dynar_get_as(split, 2, char *), NULL, 16);
1134 while(cursor_remove < 3){
1135 xbt_dynar_remove_at(split, 0, NULL);
1139 loc_expr = xbt_str_join(split, " ");
1140 xbt_str_ltrim(loc_expr, "(");
1141 xbt_str_rtrim(loc_expr, ")");
1142 new_entry->location = get_location(NULL, loc_expr);
1144 xbt_dynar_push(loclist, &new_entry);
1146 xbt_dynar_free(&split);
1149 read = xbt_getline(&line, &n, fp);
1151 line[read - 1] = '\0';
1152 xbt_str_strip_spaces(line);
1153 split = xbt_str_split(line, " ");
1159 char *key = bprintf("%d", (int)strtoul((char *)xbt_dynar_get_as(split, 0, char *), NULL, 16));
1160 xbt_dict_set(location_list, key, loclist, NULL);
1163 xbt_dynar_free(&split);
1171 return location_list;
1174 static dw_frame_t get_frame_by_offset(xbt_dict_t all_variables, unsigned long int offset){
1176 xbt_dict_cursor_t cursor = NULL;
1180 xbt_dict_foreach(all_variables, cursor, name, res) {
1181 if(offset >= res->start && offset < res->end){
1182 xbt_dict_cursor_free(&cursor);
1187 xbt_dict_cursor_free(&cursor);
1192 void MC_get_local_variables(const char *elf_file, xbt_dict_t location_list, xbt_dict_t *all_variables){
1194 char *command = bprintf("objdump -Wi %s", elf_file);
1196 FILE *fp = popen(command, "r");
1199 perror("popen for objdump failed");
1201 char *line = NULL, *origin, *abstract_origin, *current_frame = NULL;
1204 int valid_variable = 1;
1205 char *node_type = NULL, *location_type = NULL, *variable_name = NULL, *loc_expr = NULL;
1206 xbt_dynar_t split = NULL, split2 = NULL;
1208 xbt_dict_t variables_origin = xbt_dict_new_homogeneous(NULL);
1209 xbt_dict_t subprograms_origin = xbt_dict_new_homogeneous(NULL);
1210 char *subprogram_name = NULL, *subprogram_start = NULL, *subprogram_end = NULL;
1211 int new_frame = 0, new_variable = 0;
1212 dw_frame_t variable_frame, subroutine_frame = NULL;
1214 read = xbt_getline(&line, &n, fp);
1216 while (read != -1) {
1219 read = xbt_getline(&line, &n, fp);
1223 /* Wipeout the new line character */
1224 line[read - 1] = '\0';
1226 if(strlen(line) == 0){
1227 read = xbt_getline(&line, &n, fp);
1231 xbt_str_ltrim(line, NULL);
1232 xbt_str_strip_spaces(line);
1235 read = xbt_getline(&line, &n, fp);
1239 xbt_dynar_free(&split);
1240 split = xbt_str_split(line, " ");
1243 node_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1245 if(strcmp(node_type, "(DW_TAG_subprogram)") == 0){ /* New frame */
1247 dw_frame_t frame = NULL;
1249 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1250 subprogram_start = strdup(strtok(NULL, "<"));
1251 xbt_str_rtrim(subprogram_start, ">:");
1253 read = xbt_getline(&line, &n, fp);
1258 read = xbt_getline(&line, &n, fp);
1262 /* Wipeout the new line character */
1263 line[read - 1] = '\0';
1265 if(strlen(line) == 0){
1266 read = xbt_getline(&line, &n, fp);
1270 xbt_dynar_free(&split);
1271 xbt_str_rtrim(line, NULL);
1272 xbt_str_strip_spaces(line);
1273 split = xbt_str_split(line, " ");
1275 node_type = xbt_dynar_get_as(split, 1, char *);
1277 if(strncmp(node_type, "DW_AT_", 6) != 0)
1280 if(strcmp(node_type, "DW_AT_sibling") == 0){
1282 subprogram_end = strdup(xbt_dynar_get_as(split, 3, char*));
1283 xbt_str_ltrim(subprogram_end, "<0x");
1284 xbt_str_rtrim(subprogram_end, ">");
1286 }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){ /* Frame already in dict */
1289 abstract_origin = strdup(xbt_dynar_get_as(split, 2, char*));
1290 xbt_str_ltrim(abstract_origin, "<0x");
1291 xbt_str_rtrim(abstract_origin, ">");
1292 subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, abstract_origin);
1293 frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
1294 xbt_free(abstract_origin);
1296 }else if(strcmp(node_type, "DW_AT_name") == 0){
1299 xbt_free(current_frame);
1300 frame = xbt_new0(s_dw_frame_t, 1);
1301 frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1302 frame->variables = xbt_dict_new_homogeneous(NULL);
1303 frame->frame_base = xbt_new0(s_dw_location_t, 1);
1304 current_frame = strdup(frame->name);
1306 xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
1308 }else if(strcmp(node_type, "DW_AT_frame_base") == 0){
1310 location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1312 if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
1314 frame->frame_base = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
1318 xbt_str_strip_spaces(line);
1319 split2 = xbt_str_split(line, "(");
1320 xbt_dynar_remove_at(split2, 0, NULL);
1321 loc_expr = xbt_str_join(split2, " ");
1322 xbt_str_rtrim(loc_expr, ")");
1323 frame->frame_base = get_location(NULL, loc_expr);
1324 xbt_dynar_free(&split2);
1329 }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
1332 frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1334 }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
1337 frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1339 }else if(strcmp(node_type, "DW_AT_MIPS_linkage_name:") == 0){
1341 xbt_free(frame->name);
1342 xbt_free(current_frame);
1343 frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1344 current_frame = strdup(frame->name);
1345 xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
1349 read = xbt_getline(&line, &n, fp);
1354 frame->start = strtoul(subprogram_start, NULL, 16);
1355 if(subprogram_end != NULL)
1356 frame->end = strtoul(subprogram_end, NULL, 16);
1357 xbt_dict_set(*all_variables, frame->name, frame, NULL);
1360 xbt_free(subprogram_start);
1361 xbt_free(subprogram_end);
1362 subprogram_end = NULL;
1365 }else if(strcmp(node_type, "(DW_TAG_variable)") == 0){ /* New variable */
1367 dw_local_variable_t var = NULL;
1369 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1370 origin = strdup(strtok(NULL, "<"));
1371 xbt_str_rtrim(origin, ">:");
1373 read = xbt_getline(&line, &n, fp);
1378 read = xbt_getline(&line, &n, fp);
1382 /* Wipeout the new line character */
1383 line[read - 1] = '\0';
1385 if(strlen(line) == 0){
1386 read = xbt_getline(&line, &n, fp);
1390 xbt_dynar_free(&split);
1391 xbt_str_rtrim(line, NULL);
1392 xbt_str_strip_spaces(line);
1393 split = xbt_str_split(line, " ");
1395 node_type = xbt_dynar_get_as(split, 1, char *);
1397 if(strncmp(node_type, "DW_AT_", 6) != 0)
1400 if(strcmp(node_type, "DW_AT_name") == 0){
1403 var = xbt_new0(s_dw_local_variable_t, 1);
1404 var->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1406 xbt_dict_set(variables_origin, origin, var->name, NULL);
1408 }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
1411 abstract_origin = xbt_dynar_get_as(split, 2, char *);
1412 xbt_str_ltrim(abstract_origin, "<0x");
1413 xbt_str_rtrim(abstract_origin, ">");
1415 variable_name = (char *)xbt_dict_get_or_null(variables_origin, abstract_origin);
1416 variable_frame = get_frame_by_offset(*all_variables, strtoul(abstract_origin, NULL, 16));
1417 var = xbt_dict_get_or_null(variable_frame->variables, variable_name);
1419 }else if(strcmp(node_type, "DW_AT_location") == 0){
1421 if(valid_variable == 1 && var != NULL){
1423 var->location = xbt_new0(s_dw_location_t, 1);
1425 location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1427 if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
1429 var->location = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
1433 xbt_str_strip_spaces(line);
1434 split2 = xbt_str_split(line, "(");
1435 xbt_dynar_remove_at(split2, 0, NULL);
1436 loc_expr = xbt_str_join(split2, " ");
1437 xbt_str_rtrim(loc_expr, ")");
1438 var->location = get_location(NULL, loc_expr);
1439 xbt_dynar_free(&split2);
1446 }else if(strcmp(node_type, "DW_AT_external") == 0){
1452 read = xbt_getline(&line, &n, fp);
1456 if(new_variable == 1 && valid_variable == 1){
1458 variable_frame = xbt_dict_get_or_null(*all_variables, current_frame);
1459 xbt_dict_set(variable_frame->variables, var->name, var, NULL);
1465 }else if(strcmp(node_type, "(DW_TAG_inlined_subroutine)") == 0){
1467 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1468 origin = strdup(strtok(NULL, "<"));
1469 xbt_str_rtrim(origin, ">:");
1471 read = xbt_getline(&line, &n, fp);
1475 /* Wipeout the new line character */
1476 line[read - 1] = '\0';
1479 read = xbt_getline(&line, &n, fp);
1483 if(strlen(line) == 0){
1484 read = xbt_getline(&line, &n, fp);
1488 xbt_dynar_free(&split);
1489 xbt_str_rtrim(line, NULL);
1490 xbt_str_strip_spaces(line);
1491 split = xbt_str_split(line, " ");
1493 if(strncmp(xbt_dynar_get_as(split, 1, char *), "DW_AT_", 6) != 0)
1496 node_type = xbt_dynar_get_as(split, 1, char *);
1498 if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
1500 origin = xbt_dynar_get_as(split, 2, char *);
1501 xbt_str_ltrim(origin, "<0x");
1502 xbt_str_rtrim(origin, ">");
1504 subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, origin);
1505 subroutine_frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
1507 }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
1509 subroutine_frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1511 }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
1513 subroutine_frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1516 read = xbt_getline(&line, &n, fp);
1522 read = xbt_getline(&line, &n, fp);
1528 xbt_dynar_free(&split);
1535 static dw_location_t get_location(xbt_dict_t location_list, char *expr){
1537 dw_location_t loc = xbt_new0(s_dw_location_t, 1);
1539 if(location_list != NULL){
1541 char *key = bprintf("%d", (int)strtoul(expr, NULL, 16));
1542 loc->type = e_dw_loclist;
1543 loc->location.loclist = (xbt_dynar_t)xbt_dict_get_or_null(location_list, key);
1544 if(loc->location.loclist == NULL)
1545 XBT_INFO("Key not found in loclist");
1552 char *tok = NULL, *tok2 = NULL;
1554 xbt_dynar_t tokens1 = xbt_str_split(expr, ";");
1555 xbt_dynar_t tokens2;
1557 loc->type = e_dw_compose;
1558 loc->location.compose = xbt_dynar_new(sizeof(dw_location_t), NULL);
1560 while(cursor < xbt_dynar_length(tokens1)){
1562 tok = xbt_dynar_get_as(tokens1, cursor, char*);
1563 tokens2 = xbt_str_split(tok, " ");
1564 tok2 = xbt_dynar_get_as(tokens2, 0, char*);
1566 if(strncmp(tok2, "DW_OP_reg", 9) == 0){
1567 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1568 new_element->type = e_dw_register;
1569 new_element->location.reg = atoi(strtok(tok2, "DW_OP_reg"));
1570 xbt_dynar_push(loc->location.compose, &new_element);
1571 }else if(strcmp(tok2, "DW_OP_fbreg:") == 0){
1572 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1573 new_element->type = e_dw_fbregister_op;
1574 new_element->location.fbreg_op = atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*));
1575 xbt_dynar_push(loc->location.compose, &new_element);
1576 }else if(strncmp(tok2, "DW_OP_breg", 10) == 0){
1577 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1578 new_element->type = e_dw_bregister_op;
1579 new_element->location.breg_op.reg = atoi(strtok(tok2, "DW_OP_breg"));
1580 new_element->location.breg_op.offset = atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*));
1581 xbt_dynar_push(loc->location.compose, &new_element);
1582 }else if(strncmp(tok2, "DW_OP_lit", 9) == 0){
1583 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1584 new_element->type = e_dw_lit;
1585 new_element->location.lit = atoi(strtok(tok2, "DW_OP_lit"));
1586 xbt_dynar_push(loc->location.compose, &new_element);
1587 }else if(strcmp(tok2, "DW_OP_piece:") == 0){
1588 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1589 new_element->type = e_dw_piece;
1590 new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*));
1591 /*if(strlen(xbt_dynar_get_as(tokens2, 1, char*)) > 1)
1592 new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1594 new_element->location.piece = xbt_dynar_get_as(tokens2, 1, char*)[0] - '0';*/
1595 xbt_dynar_push(loc->location.compose, &new_element);
1596 }else if(strcmp(tok2, "DW_OP_plus_uconst:") == 0){
1597 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1598 new_element->type = e_dw_plus_uconst;
1599 new_element->location.plus_uconst = atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char *));
1600 xbt_dynar_push(loc->location.compose, &new_element);
1601 }else if(strcmp(tok, "DW_OP_abs") == 0 ||
1602 strcmp(tok, "DW_OP_and") == 0 ||
1603 strcmp(tok, "DW_OP_div") == 0 ||
1604 strcmp(tok, "DW_OP_minus") == 0 ||
1605 strcmp(tok, "DW_OP_mod") == 0 ||
1606 strcmp(tok, "DW_OP_mul") == 0 ||
1607 strcmp(tok, "DW_OP_neg") == 0 ||
1608 strcmp(tok, "DW_OP_not") == 0 ||
1609 strcmp(tok, "DW_OP_or") == 0 ||
1610 strcmp(tok, "DW_OP_plus") == 0){
1611 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1612 new_element->type = e_dw_arithmetic;
1613 new_element->location.arithmetic = strdup(strtok(tok2, "DW_OP_"));
1614 xbt_dynar_push(loc->location.compose, &new_element);
1615 }else if(strcmp(tok, "DW_OP_stack_value") == 0){
1616 }else if(strcmp(tok2, "DW_OP_deref_size:") == 0){
1617 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1618 new_element->type = e_dw_deref;
1619 new_element->location.deref_size = (unsigned int short) atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*));
1620 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1621 new_element->location.deref_size = atoi(xbt_dynar_get_as(tokens, cursor, char*));
1623 new_element->location.deref_size = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
1624 xbt_dynar_push(loc->location.compose, &new_element);
1625 }else if(strcmp(tok, "DW_OP_deref") == 0){
1626 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1627 new_element->type = e_dw_deref;
1628 new_element->location.deref_size = sizeof(void *);
1629 xbt_dynar_push(loc->location.compose, &new_element);
1630 }else if(strcmp(tok2, "DW_OP_constu:") == 0){
1631 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1632 new_element->type = e_dw_uconstant;
1633 new_element->location.uconstant.bytes = 1;
1634 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*)));
1635 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1636 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens, cursor, char*)));
1638 new_element->location.uconstant.value = (unsigned long int)(xbt_dynar_get_as(tokens, cursor, char*)[0] - '0');*/
1639 xbt_dynar_push(loc->location.compose, &new_element);
1640 }else if(strcmp(tok2, "DW_OP_consts:") == 0){
1641 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1642 new_element->type = e_dw_sconstant;
1643 new_element->location.sconstant.bytes = 1;
1644 new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*)));
1645 xbt_dynar_push(loc->location.compose, &new_element);
1646 }else if(strcmp(tok2, "DW_OP_const1u:") == 0 ||
1647 strcmp(tok2, "DW_OP_const2u:") == 0 ||
1648 strcmp(tok2, "DW_OP_const4u:") == 0 ||
1649 strcmp(tok2, "DW_OP_const8u:") == 0){
1650 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1651 new_element->type = e_dw_uconstant;
1652 new_element->location.uconstant.bytes = tok2[11] - '0';
1653 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*)));
1654 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1655 new_element->location.constant.value = atoi(xbt_dynar_get_as(tokens, cursor, char*));
1657 new_element->location.constant.value = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
1658 xbt_dynar_push(loc->location.compose, &new_element);
1659 }else if(strcmp(tok, "DW_OP_const1s") == 0 ||
1660 strcmp(tok, "DW_OP_const2s") == 0 ||
1661 strcmp(tok, "DW_OP_const4s") == 0 ||
1662 strcmp(tok, "DW_OP_const8s") == 0){
1663 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1664 new_element->type = e_dw_sconstant;
1665 new_element->location.sconstant.bytes = tok2[11] - '0';
1666 new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*)));
1667 xbt_dynar_push(loc->location.compose, &new_element);
1669 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1670 new_element->type = e_dw_unsupported;
1671 xbt_dynar_push(loc->location.compose, &new_element);
1675 xbt_dynar_free(&tokens2);
1679 xbt_dynar_free(&tokens1);
1688 void print_local_variables(xbt_dict_t list){
1690 dw_location_entry_t entry;
1691 dw_location_t location_entry;
1692 unsigned int cursor3 = 0, cursor4 = 0;
1693 xbt_dict_cursor_t cursor = 0, cursor2 = 0;
1695 char *frame_name, *variable_name;
1696 dw_frame_t current_frame;
1697 dw_local_variable_t current_variable;
1699 xbt_dict_foreach(list, cursor, frame_name, current_frame){
1700 fprintf(stderr, "Frame name : %s\n", current_frame->name);
1701 fprintf(stderr, "Location type : %d\n", current_frame->frame_base->type);
1702 xbt_dict_foreach((xbt_dict_t)current_frame->variables, cursor2, variable_name, current_variable){
1703 fprintf(stderr, "Name : %s\n", current_variable->name);
1704 if(current_variable->location == NULL)
1706 fprintf(stderr, "Location type : %d\n", current_variable->location->type);
1707 switch(current_variable->location->type){
1709 xbt_dynar_foreach(current_variable->location->location.loclist, cursor3, entry){
1710 fprintf(stderr, "Lowpc : %lx, Highpc : %lx,", entry->lowpc, entry->highpc);
1711 switch(entry->location->type){
1712 case e_dw_register :
1713 fprintf(stderr, " Location : in register %d\n", entry->location->location.reg);
1715 case e_dw_bregister_op:
1716 fprintf(stderr, " Location : Add %d to the value in register %d\n", entry->location->location.breg_op.offset, entry->location->location.breg_op.reg);
1719 fprintf(stderr, "Value already kwnown : %d\n", entry->location->location.lit);
1721 case e_dw_fbregister_op:
1722 fprintf(stderr, " Location : %d bytes from logical frame pointer\n", entry->location->location.fbreg_op);
1725 fprintf(stderr, " Location :\n");
1726 xbt_dynar_foreach(entry->location->location.compose, cursor4, location_entry){
1727 switch(location_entry->type){
1728 case e_dw_register :
1729 fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
1731 case e_dw_bregister_op:
1732 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);
1735 fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
1737 case e_dw_fbregister_op:
1738 fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
1741 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);
1743 case e_dw_arithmetic :
1744 fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
1747 fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
1749 case e_dw_uconstant :
1750 fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
1752 case e_dw_sconstant :
1753 fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
1756 fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
1762 fprintf(stderr, "Location type not supported\n");
1769 fprintf(stderr, "Location :\n");
1770 xbt_dynar_foreach(current_variable->location->location.compose, cursor4, location_entry){
1771 switch(location_entry->type){
1772 case e_dw_register :
1773 fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
1775 case e_dw_bregister_op:
1776 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);
1779 fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
1781 case e_dw_fbregister_op:
1782 fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
1785 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);
1787 case e_dw_arithmetic :
1788 fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
1791 fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
1793 case e_dw_uconstant :
1794 fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
1796 case e_dw_sconstant :
1797 fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
1800 fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
1806 fprintf(stderr, "Location type not supported\n");
1814 static void MC_get_global_variables(char *elf_file){
1818 char *command = bprintf("objdump -t -j .data -j .bss %s", elf_file);
1820 fp = popen(command, "r");
1823 perror("popen failed");
1827 if(mc_global_variables == NULL)
1828 mc_global_variables = xbt_dynar_new(sizeof(global_variable_t), global_variable_free_voidp);
1834 xbt_dynar_t line_tokens = NULL;
1835 unsigned long offset;
1837 int type = strcmp(elf_file, xbt_binary_name); /* 0 = binary, other = libsimgrid */
1839 while ((read = xbt_getline(&line, &n, fp)) != -1){
1844 /* Wipeout the new line character */
1845 line[read - 1] = '\0';
1847 xbt_str_strip_spaces(line);
1848 xbt_str_ltrim(line, NULL);
1850 line_tokens = xbt_str_split(line, NULL);
1852 if(xbt_dynar_length(line_tokens) <= 4 || strcmp(xbt_dynar_get_as(line_tokens, 0, char *), "SYMBOL") == 0)
1855 if((strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "__gcov", 6) == 0)
1856 || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "gcov", 4) == 0)
1857 || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), ".data") == 0)
1858 || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), ".bss") == 0)
1859 || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "stderr", 6) == 0)
1860 || ((size_t)strtoul(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 2, char*), NULL, 16) == 0))
1863 global_variable_t var = xbt_new0(s_global_variable_t, 1);
1866 var->address = (void *)strtoul(xbt_dynar_get_as(line_tokens, 0, char*), NULL, 16);
1868 offset = strtoul(xbt_dynar_get_as(line_tokens, 0, char*), NULL, 16);
1869 var->address = (char *)start_text_libsimgrid+offset;
1872 var->size = (size_t)strtoul(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 2, char*), NULL, 16);
1873 var->name = strdup(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*));
1875 if(data_bss_ignore_size(var->address) > 0){
1876 global_variable_free(var);
1878 if(xbt_dynar_is_empty(mc_global_variables)){
1879 xbt_dynar_push(mc_global_variables, &var);
1881 unsigned int cursor = 0;
1883 int end = xbt_dynar_length(mc_global_variables) - 1;
1884 global_variable_t current_var = NULL;
1886 while(start <= end){
1887 cursor = (start + end) / 2;
1888 current_var = (global_variable_t)xbt_dynar_get_as(mc_global_variables, cursor, global_variable_t);
1889 if(current_var->address == var->address)
1891 if(current_var->address < var->address)
1893 if(current_var->address > var->address)
1897 if(current_var->address < var->address)
1898 xbt_dynar_insert_at(mc_global_variables, cursor + 1, &var);
1900 xbt_dynar_insert_at(mc_global_variables, cursor, &var);
1904 xbt_dynar_free(&line_tokens);
1914 void global_variable_free(global_variable_t v){
1919 void global_variable_free_voidp(void *v){
1920 global_variable_free((global_variable_t) * (void **) v);