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;
33 char *_sg_mc_dot_output_file = NULL;
35 extern int _sg_init_status;
36 void _mc_cfg_cb_reduce(const char *name, int pos) {
37 if (_sg_init_status && !_sg_do_model_check) {
38 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.");
40 char *val= xbt_cfg_get_string(_sg_cfg_set, name);
41 if (!strcasecmp(val,"none")) {
42 mc_reduce_kind = e_mc_reduce_none;
43 } else if (!strcasecmp(val,"dpor")) {
44 mc_reduce_kind = e_mc_reduce_dpor;
46 xbt_die("configuration option %s can only take 'none' or 'dpor' as a value",name);
50 void _mc_cfg_cb_checkpoint(const char *name, int pos) {
51 if (_sg_init_status && !_sg_do_model_check) {
52 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.");
54 _sg_mc_checkpoint = xbt_cfg_get_int(_sg_cfg_set, name);
56 void _mc_cfg_cb_property(const char *name, int pos) {
57 if (_sg_init_status && !_sg_do_model_check) {
58 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.");
60 _sg_mc_property_file= xbt_cfg_get_string(_sg_cfg_set, name);
63 void _mc_cfg_cb_timeout(const char *name, int pos) {
64 if (_sg_init_status && !_sg_do_model_check) {
65 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.");
67 _sg_mc_timeout= xbt_cfg_get_int(_sg_cfg_set, name);
70 void _mc_cfg_cb_max_depth(const char *name, int pos) {
71 if (_sg_init_status && !_sg_do_model_check) {
72 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.");
74 _sg_mc_max_depth= xbt_cfg_get_int(_sg_cfg_set, name);
77 void _mc_cfg_cb_visited(const char *name, int pos) {
78 if (_sg_init_status && !_sg_do_model_check) {
79 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.");
81 _sg_mc_visited= xbt_cfg_get_int(_sg_cfg_set, name);
84 void _mc_cfg_cb_dot_output(const char *name, int pos) {
85 if (_sg_init_status && !_sg_do_model_check) {
86 xbt_die("You are specifying a file name for a dot output of graph state 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.");
88 _sg_mc_dot_output_file= xbt_cfg_get_string(_sg_cfg_set, name);
91 /* MC global data structures */
93 mc_state_t mc_current_state = NULL;
94 char mc_replay_mode = FALSE;
95 double *mc_time = NULL;
96 mc_comparison_times_t mc_comp_times = NULL;
97 double mc_snapshot_comparison_time;
101 xbt_fifo_t mc_stack_safety = NULL;
102 mc_stats_t mc_stats = NULL;
103 mc_global_t initial_state_safety = NULL;
107 mc_stats_pair_t mc_stats_pair = NULL;
108 xbt_fifo_t mc_stack_liveness = NULL;
109 mc_global_t initial_state_liveness = NULL;
113 xbt_dict_t mc_local_variables = NULL;
115 xbt_dynar_t mc_global_variables = NULL;
117 /* Ignore mechanism */
118 xbt_dynar_t mc_stack_comparison_ignore;
119 xbt_dynar_t mc_data_bss_comparison_ignore;
120 extern xbt_dynar_t mc_heap_comparison_ignore;
121 extern xbt_dynar_t stacks_areas;
123 FILE *dot_output = NULL;
124 const char* colors[10];
126 xbt_automaton_t _mc_property_automaton = NULL;
128 /* Static functions */
130 static void MC_assert_pair(int prop);
131 static dw_location_t get_location(xbt_dict_t location_list, char *expr);
132 static dw_frame_t get_frame_by_offset(xbt_dict_t all_variables, unsigned long int offset);
133 static size_t data_bss_ignore_size(void *address);
134 static void MC_get_global_variables(char *elf_file);
136 void MC_do_the_modelcheck_for_real() {
139 mc_comp_times = xbt_new0(s_mc_comparison_times_t, 1);
142 if((_sg_mc_dot_output_file != NULL) && (_sg_mc_dot_output_file[0]!='\0'))
143 MC_init_dot_output();
145 if (!_sg_mc_property_file || _sg_mc_property_file[0]=='\0') {
146 if (mc_reduce_kind==e_mc_reduce_unset)
147 mc_reduce_kind=e_mc_reduce_dpor;
149 XBT_INFO("Check a safety property");
150 MC_modelcheck_safety();
154 if (mc_reduce_kind==e_mc_reduce_unset)
155 mc_reduce_kind=e_mc_reduce_none;
157 XBT_INFO("Check the liveness property %s",_sg_mc_property_file);
158 MC_automaton_load(_sg_mc_property_file);
159 MC_modelcheck_liveness();
164 void MC_compare(void){
170 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
172 mc_time = xbt_new0(double, simix_process_maxpid);
174 /* mc_time refers to clock for each process -> ignore it for heap comparison */
176 for(i = 0; i<simix_process_maxpid; i++)
177 MC_ignore_heap(&(mc_time[i]), sizeof(double));
181 /* Initialize the data structures that must be persistent across every
182 iteration of the model-checker (in RAW memory) */
186 MC_init_memory_map_info();
188 mc_local_variables = xbt_dict_new_homogeneous(NULL);
190 /* Get local variables in binary for state equality detection */
191 xbt_dict_t binary_location_list = MC_get_location_list(xbt_binary_name);
192 MC_get_local_variables(xbt_binary_name, binary_location_list, &mc_local_variables);
194 /* Get local variables in libsimgrid for state equality detection */
195 xbt_dict_t libsimgrid_location_list = MC_get_location_list(libsimgrid_path);
196 MC_get_local_variables(libsimgrid_path, libsimgrid_location_list, &mc_local_variables);
198 xbt_dict_free(&libsimgrid_location_list);
199 xbt_dict_free(&binary_location_list);
201 /* Get .plt section (start and end addresses) for data libsimgrid and data program comparison */
202 get_libsimgrid_plt_section();
203 get_binary_plt_section();
205 /* Get global variables */
206 MC_get_global_variables(xbt_binary_name);
207 MC_get_global_variables(libsimgrid_path);
211 /* Ignore some variables from xbt/ex.h used by exception e for stacks comparison */
212 MC_ignore_stack("e", "*");
213 MC_ignore_stack("__ex_cleanup", "*");
214 MC_ignore_stack("__ex_mctx_en", "*");
215 MC_ignore_stack("__ex_mctx_me", "*");
216 MC_ignore_stack("__xbt_ex_ctx_ptr", "*");
217 MC_ignore_stack("_log_ev", "*");
218 MC_ignore_stack("_throw_ctx", "*");
219 MC_ignore_stack("ctx", "*");
221 MC_ignore_stack("next_context", "smx_ctx_sysv_suspend_serial");
222 MC_ignore_stack("i", "smx_ctx_sysv_suspend_serial");
224 MC_ignore_data_bss(&mc_comp_times, sizeof(mc_comp_times));
225 MC_ignore_data_bss(&mc_snapshot_comparison_time, sizeof(mc_snapshot_comparison_time));
232 void MC_init_dot_output(){
239 colors[5] = "purple";
240 colors[6] = "yellow";
241 colors[7] = "orange";
243 dot_output = fopen(_sg_mc_dot_output_file, "w");
245 if(dot_output == NULL){
246 perror("Error open dot output file");
250 fprintf(dot_output, "digraph graphname{\n fixedsize=true; rankdir=TB; ranksep=.20; edge [fontsize=12]; node [fontsize=10, shape=circle,width=.5 ]; graph [resolution=20, fontsize=10];\n");
254 void MC_modelcheck_safety(void)
256 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
258 /* Check if MC is already initialized */
259 if (initial_state_safety)
262 mc_time = xbt_new0(double, simix_process_maxpid);
264 /* Initialize the data structures that must be persistent across every
265 iteration of the model-checker (in RAW memory) */
269 /* Initialize statistics */
270 mc_stats = xbt_new0(s_mc_stats_t, 1);
271 mc_stats->state_size = 1;
273 /* Create exploration stack */
274 mc_stack_safety = xbt_fifo_new();
278 if(_sg_mc_visited > 0){
282 MC_init_memory_map_info();
283 get_libsimgrid_plt_section();
284 get_binary_plt_section();
291 /* Save the initial state */
292 initial_state_safety = xbt_new0(s_mc_global_t, 1);
293 initial_state_safety->snapshot = MC_take_snapshot();
304 void MC_modelcheck_liveness(){
306 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
312 /* Initialize statistics */
313 mc_stats_pair = xbt_new0(s_mc_stats_pair_t, 1);
315 /* Create exploration stack */
316 mc_stack_liveness = xbt_fifo_new();
318 initial_state_liveness = xbt_new0(s_mc_global_t, 1);
325 MC_print_statistics_pairs(mc_stats_pair);
337 if((_sg_mc_dot_output_file != NULL) && (_sg_mc_dot_output_file[0]!='\0')){
338 fprintf(dot_output, "}\n");
348 int SIMIX_pre_mc_random(smx_simcall_t simcall){
350 return simcall->mc_value;
356 /*FIXME: return mc_current_state->executed_transition->random.value;*/
357 return simcall_mc_random();
361 * \brief Schedules all the process that are ready to run
363 void MC_wait_for_requests(void)
365 smx_process_t process;
369 while (!xbt_dynar_is_empty(simix_global->process_to_run)) {
370 SIMIX_process_runall();
371 xbt_dynar_foreach(simix_global->process_that_ran, iter, process) {
372 req = &process->simcall;
373 if (req->call != SIMCALL_NONE && !MC_request_is_visible(req))
374 SIMIX_simcall_pre(req, 0);
379 int MC_deadlock_check()
381 int deadlock = FALSE;
382 smx_process_t process;
383 if(xbt_swag_size(simix_global->process_list)){
385 xbt_swag_foreach(process, simix_global->process_list){
386 if(process->simcall.call != SIMCALL_NONE
387 && MC_request_is_enabled(&process->simcall)){
397 * \brief Re-executes from the state at position start all the transitions indicated by
398 * a given model-checker stack.
399 * \param stack The stack with the transitions to execute.
400 * \param start Start index to begin the re-execution.
402 void MC_replay(xbt_fifo_t stack, int start)
404 int raw_mem = (mmalloc_get_current_heap() == raw_heap);
408 smx_simcall_t req = NULL, saved_req = NULL;
409 xbt_fifo_item_t item, start_item;
412 XBT_DEBUG("**** Begin Replay ****");
415 /* Restore the initial state */
416 MC_restore_snapshot(initial_state_safety->snapshot);
417 /* At the moment of taking the snapshot the raw heap was set, so restoring
418 * it will set it back again, we have to unset it to continue */
422 start_item = xbt_fifo_get_last_item(stack);
425 start_item = xbt_fifo_get_prev_item(start_item);
430 /* Traverse the stack from the state at position start and re-execute the transitions */
431 for (item = start_item;
432 item != xbt_fifo_get_first_item(stack);
433 item = xbt_fifo_get_prev_item(item)) {
435 state = (mc_state_t) xbt_fifo_get_item_content(item);
436 saved_req = MC_state_get_executed_request(state, &value);
439 /* because we got a copy of the executed request, we have to fetch the
440 real one, pointed by the request field of the issuer process */
441 req = &saved_req->issuer->simcall;
443 /* Debug information */
444 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
445 req_str = MC_request_to_string(req, value);
446 XBT_DEBUG("Replay: %s (%p)", req_str, state);
451 SIMIX_simcall_pre(req, value);
452 MC_wait_for_requests();
454 /* Update statistics */
455 mc_stats->visited_states++;
456 mc_stats->executed_transitions++;
458 XBT_DEBUG("**** End Replay ****");
468 void MC_replay_liveness(xbt_fifo_t stack, int all_stack)
471 initial_state_liveness->raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
475 smx_simcall_t req = NULL, saved_req = NULL;
476 xbt_fifo_item_t item;
478 mc_pair_stateless_t pair;
481 XBT_DEBUG("**** Begin Replay ****");
483 /* Restore the initial state */
484 MC_restore_snapshot(initial_state_liveness->snapshot);
486 /* At the moment of taking the snapshot the raw heap was set, so restoring
487 * it will set it back again, we have to unset it to continue */
488 if(!initial_state_liveness->raw_mem_set)
493 item = xbt_fifo_get_last_item(stack);
495 while(depth <= xbt_fifo_size(stack)){
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++;
529 item = xbt_fifo_get_prev_item(item);
534 /* Traverse the stack from the initial state and re-execute the transitions */
535 for (item = xbt_fifo_get_last_item(stack);
536 item != xbt_fifo_get_first_item(stack);
537 item = xbt_fifo_get_prev_item(item)) {
539 pair = (mc_pair_stateless_t) xbt_fifo_get_item_content(item);
540 state = (mc_state_t) pair->graph_state;
542 if(pair->requests > 0){
544 saved_req = MC_state_get_executed_request(state, &value);
545 //XBT_DEBUG("SavedReq->call %u", saved_req->call);
547 if(saved_req != NULL){
548 /* because we got a copy of the executed request, we have to fetch the
549 real one, pointed by the request field of the issuer process */
550 req = &saved_req->issuer->simcall;
551 //XBT_DEBUG("Req->call %u", req->call);
553 /* Debug information */
554 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
555 req_str = MC_request_to_string(req, value);
556 XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
562 SIMIX_simcall_pre(req, value);
563 MC_wait_for_requests();
568 /* Update statistics */
569 mc_stats_pair->visited_pairs++;
573 XBT_DEBUG("**** End Replay ****");
575 if(initial_state_liveness->raw_mem_set)
583 * \brief Dumps the contents of a model-checker's stack and shows the actual
585 * \param stack The stack to dump
587 void MC_dump_stack_safety(xbt_fifo_t stack)
590 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
592 MC_show_stack_safety(stack);
594 if(!_sg_mc_checkpoint){
599 while ((state = (mc_state_t) xbt_fifo_pop(stack)) != NULL)
600 MC_state_delete(state);
613 void MC_show_stack_safety(xbt_fifo_t stack)
617 xbt_fifo_item_t item;
619 char *req_str = NULL;
621 for (item = xbt_fifo_get_last_item(stack);
622 (item ? (state = (mc_state_t) (xbt_fifo_get_item_content(item)))
623 : (NULL)); item = xbt_fifo_get_prev_item(item)) {
624 req = MC_state_get_executed_request(state, &value);
626 req_str = MC_request_to_string(req, value);
627 XBT_INFO("%s", req_str);
633 void MC_show_deadlock(smx_simcall_t req)
635 /*char *req_str = NULL;*/
636 XBT_INFO("**************************");
637 XBT_INFO("*** DEAD-LOCK DETECTED ***");
638 XBT_INFO("**************************");
639 XBT_INFO("Locked request:");
640 /*req_str = MC_request_to_string(req);
641 XBT_INFO("%s", req_str);
643 XBT_INFO("Counter-example execution trace:");
644 MC_dump_stack_safety(mc_stack_safety);
648 void MC_show_stack_liveness(xbt_fifo_t stack){
650 mc_pair_stateless_t pair;
651 xbt_fifo_item_t item;
653 char *req_str = NULL;
655 for (item = xbt_fifo_get_last_item(stack);
656 (item ? (pair = (mc_pair_stateless_t) (xbt_fifo_get_item_content(item)))
657 : (NULL)); item = xbt_fifo_get_prev_item(item)) {
658 req = MC_state_get_executed_request(pair->graph_state, &value);
660 if(pair->requests>0){
661 req_str = MC_request_to_string(req, value);
662 XBT_INFO("%s", req_str);
665 XBT_INFO("End of system requests but evolution in Büchi automaton");
671 void MC_dump_stack_liveness(xbt_fifo_t stack){
673 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
675 mc_pair_stateless_t pair;
678 while ((pair = (mc_pair_stateless_t) xbt_fifo_pop(stack)) != NULL)
679 pair_stateless_free(pair);
688 void MC_print_statistics(mc_stats_t stats)
690 //XBT_INFO("State space size ~= %lu", stats->state_size);
691 XBT_INFO("Expanded states = %lu", stats->expanded_states);
692 XBT_INFO("Visited states = %lu", stats->visited_states);
693 XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
694 XBT_INFO("Expanded / Visited = %lf",
695 (double) stats->visited_states / stats->expanded_states);
696 /*XBT_INFO("Exploration coverage = %lf",
697 (double)stats->expanded_states / stats->state_size); */
700 void MC_print_statistics_pairs(mc_stats_pair_t stats)
702 XBT_INFO("Expanded pairs = %lu", stats->expanded_pairs);
703 XBT_INFO("Visited pairs = %lu", stats->visited_pairs);
704 //XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
705 XBT_INFO("Expanded / Visited = %lf",
706 (double) stats->visited_pairs / stats->expanded_pairs);
708 if(mmalloc_get_current_heap() == raw_heap)
712 void MC_assert(int prop)
714 if (MC_is_active() && !prop){
715 XBT_INFO("**************************");
716 XBT_INFO("*** PROPERTY NOT VALID ***");
717 XBT_INFO("**************************");
718 XBT_INFO("Counter-example execution trace:");
719 MC_dump_stack_safety(mc_stack_safety);
720 MC_print_statistics(mc_stats);
725 static void MC_assert_pair(int prop){
726 if (MC_is_active() && !prop) {
727 XBT_INFO("**************************");
728 XBT_INFO("*** PROPERTY NOT VALID ***");
729 XBT_INFO("**************************");
730 //XBT_INFO("Counter-example execution trace:");
731 MC_show_stack_liveness(mc_stack_liveness);
732 //MC_dump_snapshot_stack(mc_snapshot_stack);
733 MC_print_statistics_pairs(mc_stats_pair);
738 void MC_process_clock_add(smx_process_t process, double amount)
740 mc_time[process->pid] += amount;
743 double MC_process_clock_get(smx_process_t process)
747 return mc_time[process->pid];
755 void MC_automaton_load(const char *file){
757 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
761 if (_mc_property_automaton == NULL)
762 _mc_property_automaton = xbt_automaton_new();
764 xbt_automaton_load(_mc_property_automaton,file);
773 void MC_automaton_new_propositional_symbol(const char* id, void* fct) {
775 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
779 if (_mc_property_automaton == NULL)
780 _mc_property_automaton = xbt_automaton_new();
782 xbt_new_propositional_symbol(_mc_property_automaton,id,fct);
791 /************ MC_ignore ***********/
793 void heap_ignore_region_free(mc_heap_ignore_region_t r){
797 void heap_ignore_region_free_voidp(void *r){
798 heap_ignore_region_free((mc_heap_ignore_region_t) * (void **) r);
801 void MC_ignore_heap(void *address, size_t size){
803 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
807 mc_heap_ignore_region_t region = NULL;
808 region = xbt_new0(s_mc_heap_ignore_region_t, 1);
809 region->address = address;
812 region->block = ((char*)address - (char*)((xbt_mheap_t)std_heap)->heapbase) / BLOCKSIZE + 1;
814 if(((xbt_mheap_t)std_heap)->heapinfo[region->block].type == 0){
815 region->fragment = -1;
816 ((xbt_mheap_t)std_heap)->heapinfo[region->block].busy_block.ignore = 1;
818 region->fragment = ((uintptr_t) (ADDR2UINT (address) % (BLOCKSIZE))) >> ((xbt_mheap_t)std_heap)->heapinfo[region->block].type;
819 ((xbt_mheap_t)std_heap)->heapinfo[region->block].busy_frag.ignore[region->fragment] = 1;
822 if(mc_heap_comparison_ignore == NULL){
823 mc_heap_comparison_ignore = xbt_dynar_new(sizeof(mc_heap_ignore_region_t), heap_ignore_region_free_voidp);
824 xbt_dynar_push(mc_heap_comparison_ignore, ®ion);
830 unsigned int cursor = 0;
831 mc_heap_ignore_region_t current_region;
833 int end = xbt_dynar_length(mc_heap_comparison_ignore) - 1;
836 cursor = (start + end) / 2;
837 current_region = (mc_heap_ignore_region_t)xbt_dynar_get_as(mc_heap_comparison_ignore, cursor, mc_heap_ignore_region_t);
838 if(current_region->address == address){
839 heap_ignore_region_free(region);
844 if(current_region->address < address)
846 if(current_region->address > address)
850 if(current_region->address < address)
851 xbt_dynar_insert_at(mc_heap_comparison_ignore, cursor + 1, ®ion);
853 xbt_dynar_insert_at(mc_heap_comparison_ignore, cursor, ®ion);
861 void MC_remove_ignore_heap(void *address, size_t size){
863 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
867 unsigned int cursor = 0;
869 int end = xbt_dynar_length(mc_heap_comparison_ignore) - 1;
870 mc_heap_ignore_region_t region;
871 int ignore_found = 0;
874 cursor = (start + end) / 2;
875 region = (mc_heap_ignore_region_t)xbt_dynar_get_as(mc_heap_comparison_ignore, cursor, mc_heap_ignore_region_t);
876 if(region->address == address){
880 if(region->address < address)
882 if(region->address > address){
883 if((char * )region->address <= ((char *)address + size)){
891 if(ignore_found == 1){
892 xbt_dynar_remove_at(mc_heap_comparison_ignore, cursor, NULL);
893 MC_remove_ignore_heap(address, size);
903 void MC_ignore_data_bss(void *address, size_t size){
905 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
909 if(mc_data_bss_comparison_ignore == NULL)
910 mc_data_bss_comparison_ignore = xbt_dynar_new(sizeof(mc_data_bss_ignore_variable_t), NULL);
912 mc_data_bss_ignore_variable_t var = NULL;
913 var = xbt_new0(s_mc_data_bss_ignore_variable_t, 1);
914 var->address = address;
917 if(xbt_dynar_is_empty(mc_data_bss_comparison_ignore)){
919 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, 0, &var);
923 unsigned int cursor = 0;
925 int end = xbt_dynar_length(mc_data_bss_comparison_ignore) - 1;
926 mc_data_bss_ignore_variable_t current_var = NULL;
929 cursor = (start + end) / 2;
930 current_var = (mc_data_bss_ignore_variable_t)xbt_dynar_get_as(mc_data_bss_comparison_ignore, cursor, mc_data_bss_ignore_variable_t);
931 if(current_var->address == address){
937 if(current_var->address < address)
939 if(current_var->address > address)
943 if(current_var->address < address)
944 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, cursor + 1, &var);
946 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, cursor, &var);
950 /* Remove variable from mc_global_variables */
952 if(mc_global_variables != NULL){
954 unsigned int cursor = 0;
956 int end = xbt_dynar_length(mc_global_variables) - 1;
957 global_variable_t current_var;
961 cursor = (start + end) / 2;
962 current_var = (global_variable_t)xbt_dynar_get_as(mc_global_variables, cursor, global_variable_t);
963 if(current_var->address == var->address){
967 if(current_var->address < address)
969 if(current_var->address > address)
974 xbt_dynar_remove_at(mc_global_variables, cursor, NULL);
984 static size_t data_bss_ignore_size(void *address){
985 unsigned int cursor = 0;
987 int end = xbt_dynar_length(mc_data_bss_comparison_ignore) - 1;
988 mc_data_bss_ignore_variable_t var;
991 cursor = (start + end) / 2;
992 var = (mc_data_bss_ignore_variable_t)xbt_dynar_get_as(mc_data_bss_comparison_ignore, cursor, mc_data_bss_ignore_variable_t);
993 if(var->address == address)
995 if(var->address < address){
996 if((void *)((char *)var->address + var->size) > address)
997 return (char *)var->address + var->size - (char*)address;
1001 if(var->address > address)
1010 void MC_ignore_stack(const char *var_name, const char *frame_name){
1012 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
1016 if(mc_stack_comparison_ignore == NULL)
1017 mc_stack_comparison_ignore = xbt_dynar_new(sizeof(mc_stack_ignore_variable_t), NULL);
1019 if(xbt_dynar_is_empty(mc_stack_comparison_ignore)){
1021 mc_stack_ignore_variable_t var = NULL;
1022 var = xbt_new0(s_mc_stack_ignore_variable_t, 1);
1023 var->var_name = strdup(var_name);
1024 var->frame = strdup(frame_name);
1026 xbt_dynar_insert_at(mc_stack_comparison_ignore, 0, &var);
1030 unsigned int cursor = 0;
1032 int end = xbt_dynar_length(mc_stack_comparison_ignore) - 1;
1033 mc_stack_ignore_variable_t current_var = NULL;
1035 while(start <= end){
1036 cursor = (start + end) / 2;
1037 current_var = (mc_stack_ignore_variable_t)xbt_dynar_get_as(mc_stack_comparison_ignore, cursor, mc_stack_ignore_variable_t);
1038 if(strcmp(current_var->frame, frame_name) == 0){
1039 if(strcmp(current_var->var_name, var_name) == 0){
1045 if(strcmp(current_var->var_name, var_name) < 0)
1047 if(strcmp(current_var->var_name, var_name) > 0)
1050 if(strcmp(current_var->frame, frame_name) < 0)
1052 if(strcmp(current_var->frame, frame_name) > 0)
1056 mc_stack_ignore_variable_t var = NULL;
1057 var = xbt_new0(s_mc_stack_ignore_variable_t, 1);
1058 var->var_name = strdup(var_name);
1059 var->frame = strdup(frame_name);
1061 if(strcmp(current_var->frame, frame_name) < 0)
1062 xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor + 1, &var);
1064 xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor, &var);
1068 /* Remove variable from mc_local_variables */
1070 if(mc_local_variables != NULL){
1072 if(strcmp(frame_name, "*") != 0){
1073 dw_frame_t frame = xbt_dict_get_or_null(mc_local_variables, frame_name);
1075 xbt_dict_remove(frame->variables, var_name);
1087 void MC_new_stack_area(void *stack, char *name, void* context, size_t size){
1089 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
1092 if(stacks_areas == NULL)
1093 stacks_areas = xbt_dynar_new(sizeof(stack_region_t), NULL);
1095 stack_region_t region = NULL;
1096 region = xbt_new0(s_stack_region_t, 1);
1097 region->address = stack;
1098 region->process_name = strdup(name);
1099 region->context = context;
1100 region->size = size;
1101 region->block = ((char*)stack - (char*)((xbt_mheap_t)std_heap)->heapbase) / BLOCKSIZE + 1;
1102 xbt_dynar_push(stacks_areas, ®ion);
1110 /************ DWARF ***********/
1112 xbt_dict_t MC_get_location_list(const char *elf_file){
1114 char *command = bprintf("objdump -Wo %s", elf_file);
1116 FILE *fp = popen(command, "r");
1119 perror("popen for objdump failed");
1123 int debug = 0; /*Detect if the program has been compiled with -g */
1125 xbt_dict_t location_list = xbt_dict_new_homogeneous(NULL);
1126 char *line = NULL, *loc_expr = NULL;
1130 xbt_dynar_t split = NULL;
1132 while ((read = xbt_getline(&line, &n, fp)) != -1) {
1134 /* Wipeout the new line character */
1135 line[read - 1] = '\0';
1137 xbt_str_trim(line, NULL);
1142 if(strlen(line) == 0)
1147 if(strncmp(line, elf_file, strlen(elf_file)) == 0)
1150 if(strncmp(line, "Contents", 8) == 0)
1153 if(strncmp(line, "Offset", 6) == 0){
1160 XBT_INFO("Your program must be compiled with -g");
1164 xbt_dynar_t loclist = xbt_dynar_new(sizeof(dw_location_entry_t), NULL);
1166 xbt_str_strip_spaces(line);
1167 split = xbt_str_split(line, " ");
1169 while(read != -1 && strcmp("<End", (char *)xbt_dynar_get_as(split, 1, char *)) != 0){
1171 dw_location_entry_t new_entry = xbt_new0(s_dw_location_entry_t, 1);
1172 new_entry->lowpc = strtoul((char *)xbt_dynar_get_as(split, 1, char *), NULL, 16);
1173 new_entry->highpc = strtoul((char *)xbt_dynar_get_as(split, 2, char *), NULL, 16);
1176 while(cursor_remove < 3){
1177 xbt_dynar_remove_at(split, 0, NULL);
1181 loc_expr = xbt_str_join(split, " ");
1182 xbt_str_ltrim(loc_expr, "(");
1183 xbt_str_rtrim(loc_expr, ")");
1184 new_entry->location = get_location(NULL, loc_expr);
1186 xbt_dynar_push(loclist, &new_entry);
1188 xbt_dynar_free(&split);
1191 read = xbt_getline(&line, &n, fp);
1193 line[read - 1] = '\0';
1194 xbt_str_strip_spaces(line);
1195 split = xbt_str_split(line, " ");
1201 char *key = bprintf("%d", (int)strtoul((char *)xbt_dynar_get_as(split, 0, char *), NULL, 16));
1202 xbt_dict_set(location_list, key, loclist, NULL);
1205 xbt_dynar_free(&split);
1213 return location_list;
1216 static dw_frame_t get_frame_by_offset(xbt_dict_t all_variables, unsigned long int offset){
1218 xbt_dict_cursor_t cursor = NULL;
1222 xbt_dict_foreach(all_variables, cursor, name, res) {
1223 if(offset >= res->start && offset < res->end){
1224 xbt_dict_cursor_free(&cursor);
1229 xbt_dict_cursor_free(&cursor);
1234 void MC_get_local_variables(const char *elf_file, xbt_dict_t location_list, xbt_dict_t *all_variables){
1236 char *command = bprintf("objdump -Wi %s", elf_file);
1238 FILE *fp = popen(command, "r");
1241 perror("popen for objdump failed");
1243 char *line = NULL, *origin, *abstract_origin, *current_frame = NULL;
1246 int valid_variable = 1;
1247 char *node_type = NULL, *location_type = NULL, *variable_name = NULL, *loc_expr = NULL;
1248 xbt_dynar_t split = NULL, split2 = NULL;
1250 xbt_dict_t variables_origin = xbt_dict_new_homogeneous(NULL);
1251 xbt_dict_t subprograms_origin = xbt_dict_new_homogeneous(NULL);
1252 char *subprogram_name = NULL, *subprogram_start = NULL, *subprogram_end = NULL;
1253 int new_frame = 0, new_variable = 0;
1254 dw_frame_t variable_frame, subroutine_frame = NULL;
1256 read = xbt_getline(&line, &n, fp);
1258 while (read != -1) {
1261 read = xbt_getline(&line, &n, fp);
1265 /* Wipeout the new line character */
1266 line[read - 1] = '\0';
1268 if(strlen(line) == 0){
1269 read = xbt_getline(&line, &n, fp);
1273 xbt_str_ltrim(line, NULL);
1274 xbt_str_strip_spaces(line);
1277 read = xbt_getline(&line, &n, fp);
1281 xbt_dynar_free(&split);
1282 split = xbt_str_split(line, " ");
1285 node_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1287 if(strcmp(node_type, "(DW_TAG_subprogram)") == 0){ /* New frame */
1289 dw_frame_t frame = NULL;
1291 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1292 subprogram_start = strdup(strtok(NULL, "<"));
1293 xbt_str_rtrim(subprogram_start, ">:");
1295 read = xbt_getline(&line, &n, fp);
1300 read = xbt_getline(&line, &n, fp);
1304 /* Wipeout the new line character */
1305 line[read - 1] = '\0';
1307 if(strlen(line) == 0){
1308 read = xbt_getline(&line, &n, fp);
1312 xbt_dynar_free(&split);
1313 xbt_str_rtrim(line, NULL);
1314 xbt_str_strip_spaces(line);
1315 split = xbt_str_split(line, " ");
1317 node_type = xbt_dynar_get_as(split, 1, char *);
1319 if(strncmp(node_type, "DW_AT_", 6) != 0)
1322 if(strcmp(node_type, "DW_AT_sibling") == 0){
1324 subprogram_end = strdup(xbt_dynar_get_as(split, 3, char*));
1325 xbt_str_ltrim(subprogram_end, "<0x");
1326 xbt_str_rtrim(subprogram_end, ">");
1328 }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){ /* Frame already in dict */
1331 abstract_origin = strdup(xbt_dynar_get_as(split, 2, char*));
1332 xbt_str_ltrim(abstract_origin, "<0x");
1333 xbt_str_rtrim(abstract_origin, ">");
1334 subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, abstract_origin);
1335 frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
1336 xbt_free(abstract_origin);
1338 }else if(strcmp(node_type, "DW_AT_name") == 0){
1341 xbt_free(current_frame);
1342 frame = xbt_new0(s_dw_frame_t, 1);
1343 frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1344 frame->variables = xbt_dict_new_homogeneous(NULL);
1345 frame->frame_base = xbt_new0(s_dw_location_t, 1);
1346 current_frame = strdup(frame->name);
1348 xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
1350 }else if(strcmp(node_type, "DW_AT_frame_base") == 0){
1352 location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1354 if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
1356 frame->frame_base = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
1360 xbt_str_strip_spaces(line);
1361 split2 = xbt_str_split(line, "(");
1362 xbt_dynar_remove_at(split2, 0, NULL);
1363 loc_expr = xbt_str_join(split2, " ");
1364 xbt_str_rtrim(loc_expr, ")");
1365 frame->frame_base = get_location(NULL, loc_expr);
1366 xbt_dynar_free(&split2);
1371 }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
1374 frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1376 }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
1379 frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1381 }else if(strcmp(node_type, "DW_AT_MIPS_linkage_name:") == 0){
1383 xbt_free(frame->name);
1384 xbt_free(current_frame);
1385 frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1386 current_frame = strdup(frame->name);
1387 xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
1391 read = xbt_getline(&line, &n, fp);
1396 frame->start = strtoul(subprogram_start, NULL, 16);
1397 if(subprogram_end != NULL)
1398 frame->end = strtoul(subprogram_end, NULL, 16);
1399 xbt_dict_set(*all_variables, frame->name, frame, NULL);
1402 xbt_free(subprogram_start);
1403 xbt_free(subprogram_end);
1404 subprogram_end = NULL;
1407 }else if(strcmp(node_type, "(DW_TAG_variable)") == 0){ /* New variable */
1409 dw_local_variable_t var = NULL;
1411 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1412 origin = strdup(strtok(NULL, "<"));
1413 xbt_str_rtrim(origin, ">:");
1415 read = xbt_getline(&line, &n, fp);
1420 read = xbt_getline(&line, &n, fp);
1424 /* Wipeout the new line character */
1425 line[read - 1] = '\0';
1427 if(strlen(line) == 0){
1428 read = xbt_getline(&line, &n, fp);
1432 xbt_dynar_free(&split);
1433 xbt_str_rtrim(line, NULL);
1434 xbt_str_strip_spaces(line);
1435 split = xbt_str_split(line, " ");
1437 node_type = xbt_dynar_get_as(split, 1, char *);
1439 if(strncmp(node_type, "DW_AT_", 6) != 0)
1442 if(strcmp(node_type, "DW_AT_name") == 0){
1445 var = xbt_new0(s_dw_local_variable_t, 1);
1446 var->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1448 xbt_dict_set(variables_origin, origin, var->name, NULL);
1450 }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
1453 abstract_origin = xbt_dynar_get_as(split, 2, char *);
1454 xbt_str_ltrim(abstract_origin, "<0x");
1455 xbt_str_rtrim(abstract_origin, ">");
1457 variable_name = (char *)xbt_dict_get_or_null(variables_origin, abstract_origin);
1458 variable_frame = get_frame_by_offset(*all_variables, strtoul(abstract_origin, NULL, 16));
1459 var = xbt_dict_get_or_null(variable_frame->variables, variable_name);
1461 }else if(strcmp(node_type, "DW_AT_location") == 0){
1463 if(valid_variable == 1 && var != NULL){
1465 var->location = xbt_new0(s_dw_location_t, 1);
1467 location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1469 if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
1471 var->location = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
1475 xbt_str_strip_spaces(line);
1476 split2 = xbt_str_split(line, "(");
1477 xbt_dynar_remove_at(split2, 0, NULL);
1478 loc_expr = xbt_str_join(split2, " ");
1479 xbt_str_rtrim(loc_expr, ")");
1480 var->location = get_location(NULL, loc_expr);
1481 xbt_dynar_free(&split2);
1488 }else if(strcmp(node_type, "DW_AT_external") == 0){
1494 read = xbt_getline(&line, &n, fp);
1498 if(new_variable == 1 && valid_variable == 1){
1500 variable_frame = xbt_dict_get_or_null(*all_variables, current_frame);
1501 xbt_dict_set(variable_frame->variables, var->name, var, NULL);
1507 }else if(strcmp(node_type, "(DW_TAG_inlined_subroutine)") == 0){
1509 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1510 origin = strdup(strtok(NULL, "<"));
1511 xbt_str_rtrim(origin, ">:");
1513 read = xbt_getline(&line, &n, fp);
1517 /* Wipeout the new line character */
1518 line[read - 1] = '\0';
1521 read = xbt_getline(&line, &n, fp);
1525 if(strlen(line) == 0){
1526 read = xbt_getline(&line, &n, fp);
1530 xbt_dynar_free(&split);
1531 xbt_str_rtrim(line, NULL);
1532 xbt_str_strip_spaces(line);
1533 split = xbt_str_split(line, " ");
1535 if(strncmp(xbt_dynar_get_as(split, 1, char *), "DW_AT_", 6) != 0)
1538 node_type = xbt_dynar_get_as(split, 1, char *);
1540 if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
1542 origin = xbt_dynar_get_as(split, 2, char *);
1543 xbt_str_ltrim(origin, "<0x");
1544 xbt_str_rtrim(origin, ">");
1546 subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, origin);
1547 subroutine_frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
1549 }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
1551 subroutine_frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1553 }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
1555 subroutine_frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1558 read = xbt_getline(&line, &n, fp);
1564 read = xbt_getline(&line, &n, fp);
1570 xbt_dynar_free(&split);
1577 static dw_location_t get_location(xbt_dict_t location_list, char *expr){
1579 dw_location_t loc = xbt_new0(s_dw_location_t, 1);
1581 if(location_list != NULL){
1583 char *key = bprintf("%d", (int)strtoul(expr, NULL, 16));
1584 loc->type = e_dw_loclist;
1585 loc->location.loclist = (xbt_dynar_t)xbt_dict_get_or_null(location_list, key);
1586 if(loc->location.loclist == NULL)
1587 XBT_INFO("Key not found in loclist");
1594 char *tok = NULL, *tok2 = NULL;
1596 xbt_dynar_t tokens1 = xbt_str_split(expr, ";");
1597 xbt_dynar_t tokens2;
1599 loc->type = e_dw_compose;
1600 loc->location.compose = xbt_dynar_new(sizeof(dw_location_t), NULL);
1602 while(cursor < xbt_dynar_length(tokens1)){
1604 tok = xbt_dynar_get_as(tokens1, cursor, char*);
1605 tokens2 = xbt_str_split(tok, " ");
1606 tok2 = xbt_dynar_get_as(tokens2, 0, char*);
1608 if(strncmp(tok2, "DW_OP_reg", 9) == 0){
1609 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1610 new_element->type = e_dw_register;
1611 new_element->location.reg = atoi(strtok(tok2, "DW_OP_reg"));
1612 xbt_dynar_push(loc->location.compose, &new_element);
1613 }else if(strcmp(tok2, "DW_OP_fbreg:") == 0){
1614 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1615 new_element->type = e_dw_fbregister_op;
1616 new_element->location.fbreg_op = atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*));
1617 xbt_dynar_push(loc->location.compose, &new_element);
1618 }else if(strncmp(tok2, "DW_OP_breg", 10) == 0){
1619 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1620 new_element->type = e_dw_bregister_op;
1621 new_element->location.breg_op.reg = atoi(strtok(tok2, "DW_OP_breg"));
1622 new_element->location.breg_op.offset = atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*));
1623 xbt_dynar_push(loc->location.compose, &new_element);
1624 }else if(strncmp(tok2, "DW_OP_lit", 9) == 0){
1625 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1626 new_element->type = e_dw_lit;
1627 new_element->location.lit = atoi(strtok(tok2, "DW_OP_lit"));
1628 xbt_dynar_push(loc->location.compose, &new_element);
1629 }else if(strcmp(tok2, "DW_OP_piece:") == 0){
1630 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1631 new_element->type = e_dw_piece;
1632 new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*));
1633 /*if(strlen(xbt_dynar_get_as(tokens2, 1, char*)) > 1)
1634 new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1636 new_element->location.piece = xbt_dynar_get_as(tokens2, 1, char*)[0] - '0';*/
1637 xbt_dynar_push(loc->location.compose, &new_element);
1638 }else if(strcmp(tok2, "DW_OP_plus_uconst:") == 0){
1639 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1640 new_element->type = e_dw_plus_uconst;
1641 new_element->location.plus_uconst = atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char *));
1642 xbt_dynar_push(loc->location.compose, &new_element);
1643 }else if(strcmp(tok, "DW_OP_abs") == 0 ||
1644 strcmp(tok, "DW_OP_and") == 0 ||
1645 strcmp(tok, "DW_OP_div") == 0 ||
1646 strcmp(tok, "DW_OP_minus") == 0 ||
1647 strcmp(tok, "DW_OP_mod") == 0 ||
1648 strcmp(tok, "DW_OP_mul") == 0 ||
1649 strcmp(tok, "DW_OP_neg") == 0 ||
1650 strcmp(tok, "DW_OP_not") == 0 ||
1651 strcmp(tok, "DW_OP_or") == 0 ||
1652 strcmp(tok, "DW_OP_plus") == 0){
1653 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1654 new_element->type = e_dw_arithmetic;
1655 new_element->location.arithmetic = strdup(strtok(tok2, "DW_OP_"));
1656 xbt_dynar_push(loc->location.compose, &new_element);
1657 }else if(strcmp(tok, "DW_OP_stack_value") == 0){
1658 }else if(strcmp(tok2, "DW_OP_deref_size:") == 0){
1659 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1660 new_element->type = e_dw_deref;
1661 new_element->location.deref_size = (unsigned int short) atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*));
1662 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1663 new_element->location.deref_size = atoi(xbt_dynar_get_as(tokens, cursor, char*));
1665 new_element->location.deref_size = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
1666 xbt_dynar_push(loc->location.compose, &new_element);
1667 }else if(strcmp(tok, "DW_OP_deref") == 0){
1668 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1669 new_element->type = e_dw_deref;
1670 new_element->location.deref_size = sizeof(void *);
1671 xbt_dynar_push(loc->location.compose, &new_element);
1672 }else if(strcmp(tok2, "DW_OP_constu:") == 0){
1673 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1674 new_element->type = e_dw_uconstant;
1675 new_element->location.uconstant.bytes = 1;
1676 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*)));
1677 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1678 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens, cursor, char*)));
1680 new_element->location.uconstant.value = (unsigned long int)(xbt_dynar_get_as(tokens, cursor, char*)[0] - '0');*/
1681 xbt_dynar_push(loc->location.compose, &new_element);
1682 }else if(strcmp(tok2, "DW_OP_consts:") == 0){
1683 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1684 new_element->type = e_dw_sconstant;
1685 new_element->location.sconstant.bytes = 1;
1686 new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*)));
1687 xbt_dynar_push(loc->location.compose, &new_element);
1688 }else if(strcmp(tok2, "DW_OP_const1u:") == 0 ||
1689 strcmp(tok2, "DW_OP_const2u:") == 0 ||
1690 strcmp(tok2, "DW_OP_const4u:") == 0 ||
1691 strcmp(tok2, "DW_OP_const8u:") == 0){
1692 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1693 new_element->type = e_dw_uconstant;
1694 new_element->location.uconstant.bytes = tok2[11] - '0';
1695 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*)));
1696 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1697 new_element->location.constant.value = atoi(xbt_dynar_get_as(tokens, cursor, char*));
1699 new_element->location.constant.value = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
1700 xbt_dynar_push(loc->location.compose, &new_element);
1701 }else if(strcmp(tok, "DW_OP_const1s") == 0 ||
1702 strcmp(tok, "DW_OP_const2s") == 0 ||
1703 strcmp(tok, "DW_OP_const4s") == 0 ||
1704 strcmp(tok, "DW_OP_const8s") == 0){
1705 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1706 new_element->type = e_dw_sconstant;
1707 new_element->location.sconstant.bytes = tok2[11] - '0';
1708 new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*)));
1709 xbt_dynar_push(loc->location.compose, &new_element);
1711 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1712 new_element->type = e_dw_unsupported;
1713 xbt_dynar_push(loc->location.compose, &new_element);
1717 xbt_dynar_free(&tokens2);
1721 xbt_dynar_free(&tokens1);
1730 void print_local_variables(xbt_dict_t list){
1732 dw_location_entry_t entry;
1733 dw_location_t location_entry;
1734 unsigned int cursor3 = 0, cursor4 = 0;
1735 xbt_dict_cursor_t cursor = 0, cursor2 = 0;
1737 char *frame_name, *variable_name;
1738 dw_frame_t current_frame;
1739 dw_local_variable_t current_variable;
1741 xbt_dict_foreach(list, cursor, frame_name, current_frame){
1742 fprintf(stderr, "Frame name : %s\n", current_frame->name);
1743 fprintf(stderr, "Location type : %d\n", current_frame->frame_base->type);
1744 xbt_dict_foreach((xbt_dict_t)current_frame->variables, cursor2, variable_name, current_variable){
1745 fprintf(stderr, "Name : %s\n", current_variable->name);
1746 if(current_variable->location == NULL)
1748 fprintf(stderr, "Location type : %d\n", current_variable->location->type);
1749 switch(current_variable->location->type){
1751 xbt_dynar_foreach(current_variable->location->location.loclist, cursor3, entry){
1752 fprintf(stderr, "Lowpc : %lx, Highpc : %lx,", entry->lowpc, entry->highpc);
1753 switch(entry->location->type){
1754 case e_dw_register :
1755 fprintf(stderr, " Location : in register %d\n", entry->location->location.reg);
1757 case e_dw_bregister_op:
1758 fprintf(stderr, " Location : Add %d to the value in register %d\n", entry->location->location.breg_op.offset, entry->location->location.breg_op.reg);
1761 fprintf(stderr, "Value already kwnown : %d\n", entry->location->location.lit);
1763 case e_dw_fbregister_op:
1764 fprintf(stderr, " Location : %d bytes from logical frame pointer\n", entry->location->location.fbreg_op);
1767 fprintf(stderr, " Location :\n");
1768 xbt_dynar_foreach(entry->location->location.compose, cursor4, location_entry){
1769 switch(location_entry->type){
1770 case e_dw_register :
1771 fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
1773 case e_dw_bregister_op:
1774 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);
1777 fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
1779 case e_dw_fbregister_op:
1780 fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
1783 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);
1785 case e_dw_arithmetic :
1786 fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
1789 fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
1791 case e_dw_uconstant :
1792 fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
1794 case e_dw_sconstant :
1795 fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
1798 fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
1804 fprintf(stderr, "Location type not supported\n");
1811 fprintf(stderr, "Location :\n");
1812 xbt_dynar_foreach(current_variable->location->location.compose, cursor4, location_entry){
1813 switch(location_entry->type){
1814 case e_dw_register :
1815 fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
1817 case e_dw_bregister_op:
1818 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);
1821 fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
1823 case e_dw_fbregister_op:
1824 fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
1827 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);
1829 case e_dw_arithmetic :
1830 fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
1833 fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
1835 case e_dw_uconstant :
1836 fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
1838 case e_dw_sconstant :
1839 fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
1842 fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
1848 fprintf(stderr, "Location type not supported\n");
1856 static void MC_get_global_variables(char *elf_file){
1860 char *command = bprintf("objdump -t -j .data -j .bss %s", elf_file);
1862 fp = popen(command, "r");
1865 perror("popen failed");
1869 if(mc_global_variables == NULL)
1870 mc_global_variables = xbt_dynar_new(sizeof(global_variable_t), global_variable_free_voidp);
1876 xbt_dynar_t line_tokens = NULL;
1877 unsigned long offset;
1879 int type = strcmp(elf_file, xbt_binary_name); /* 0 = binary, other = libsimgrid */
1881 while ((read = xbt_getline(&line, &n, fp)) != -1){
1886 /* Wipeout the new line character */
1887 line[read - 1] = '\0';
1889 xbt_str_strip_spaces(line);
1890 xbt_str_ltrim(line, NULL);
1892 line_tokens = xbt_str_split(line, NULL);
1894 if(xbt_dynar_length(line_tokens) <= 4 || strcmp(xbt_dynar_get_as(line_tokens, 0, char *), "SYMBOL") == 0)
1897 if((strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "__gcov", 6) == 0)
1898 || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "gcov", 4) == 0)
1899 || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), ".data") == 0)
1900 || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), ".bss") == 0)
1901 || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "stderr", 6) == 0)
1902 || ((size_t)strtoul(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 2, char*), NULL, 16) == 0))
1905 global_variable_t var = xbt_new0(s_global_variable_t, 1);
1908 var->address = (void *)strtoul(xbt_dynar_get_as(line_tokens, 0, char*), NULL, 16);
1910 offset = strtoul(xbt_dynar_get_as(line_tokens, 0, char*), NULL, 16);
1911 var->address = (char *)start_text_libsimgrid+offset;
1914 var->size = (size_t)strtoul(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 2, char*), NULL, 16);
1915 var->name = strdup(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*));
1917 if(data_bss_ignore_size(var->address) > 0){
1918 global_variable_free(var);
1920 if(xbt_dynar_is_empty(mc_global_variables)){
1921 xbt_dynar_push(mc_global_variables, &var);
1923 unsigned int cursor = 0;
1925 int end = xbt_dynar_length(mc_global_variables) - 1;
1926 global_variable_t current_var = NULL;
1928 while(start <= end){
1929 cursor = (start + end) / 2;
1930 current_var = (global_variable_t)xbt_dynar_get_as(mc_global_variables, cursor, global_variable_t);
1931 if(current_var->address == var->address)
1933 if(current_var->address < var->address)
1935 if(current_var->address > var->address)
1939 if(current_var->address < var->address)
1940 xbt_dynar_insert_at(mc_global_variables, cursor + 1, &var);
1942 xbt_dynar_insert_at(mc_global_variables, cursor, &var);
1946 xbt_dynar_free(&line_tokens);
1956 void global_variable_free(global_variable_t v){
1961 void global_variable_free_voidp(void *v){
1962 global_variable_free((global_variable_t) * (void **) v);