1 /* Copyright (c) 2008-2013 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;
98 mc_stats_t mc_stats = NULL;
102 xbt_fifo_t mc_stack_safety = NULL;
103 mc_global_t initial_state_safety = NULL;
107 xbt_fifo_t mc_stack_liveness = NULL;
108 mc_global_t initial_state_liveness = NULL;
112 xbt_dict_t mc_local_variables = NULL;
114 xbt_dynar_t mc_global_variables = NULL;
116 /* Ignore mechanism */
117 xbt_dynar_t mc_stack_comparison_ignore;
118 xbt_dynar_t mc_data_bss_comparison_ignore;
119 extern xbt_dynar_t mc_heap_comparison_ignore;
120 extern xbt_dynar_t stacks_areas;
122 FILE *dot_output = NULL;
123 const char* colors[10];
125 xbt_automaton_t _mc_property_automaton = NULL;
127 /* Static functions */
129 static void MC_assert_pair(int prop);
130 static dw_location_t get_location(xbt_dict_t location_list, char *expr);
131 static dw_frame_t get_frame_by_offset(xbt_dict_t all_variables, unsigned long int offset);
132 static size_t data_bss_ignore_size(void *address);
133 static void MC_get_global_variables(char *elf_file);
135 void MC_do_the_modelcheck_for_real() {
138 mc_comp_times = xbt_new0(s_mc_comparison_times_t, 1);
141 if((_sg_mc_dot_output_file != NULL) && (_sg_mc_dot_output_file[0]!='\0')){
143 MC_init_dot_output();
147 if (!_sg_mc_property_file || _sg_mc_property_file[0]=='\0') {
148 if (mc_reduce_kind==e_mc_reduce_unset)
149 mc_reduce_kind=e_mc_reduce_dpor;
151 XBT_INFO("Check a safety property");
152 MC_modelcheck_safety();
156 if (mc_reduce_kind==e_mc_reduce_unset)
157 mc_reduce_kind=e_mc_reduce_none;
159 XBT_INFO("Check the liveness property %s",_sg_mc_property_file);
160 MC_automaton_load(_sg_mc_property_file);
161 MC_modelcheck_liveness();
166 void MC_compare(void){
172 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
176 /* Initialize the data structures that must be persistent across every
177 iteration of the model-checker (in RAW memory) */
181 MC_init_memory_map_info();
183 mc_local_variables = xbt_dict_new_homogeneous(NULL);
185 /* Get local variables in binary for state equality detection */
186 xbt_dict_t binary_location_list = MC_get_location_list(xbt_binary_name);
187 MC_get_local_variables(xbt_binary_name, binary_location_list, &mc_local_variables);
189 /* Get local variables in libsimgrid for state equality detection */
190 xbt_dict_t libsimgrid_location_list = MC_get_location_list(libsimgrid_path);
191 MC_get_local_variables(libsimgrid_path, libsimgrid_location_list, &mc_local_variables);
193 xbt_dict_free(&libsimgrid_location_list);
194 xbt_dict_free(&binary_location_list);
196 /* Get .plt section (start and end addresses) for data libsimgrid and data program comparison */
197 get_libsimgrid_plt_section();
198 get_binary_plt_section();
200 /* Get global variables */
201 MC_get_global_variables(xbt_binary_name);
202 MC_get_global_variables(libsimgrid_path);
206 /* Ignore some variables from xbt/ex.h used by exception e for stacks comparison */
207 MC_ignore_stack("e", "*");
208 MC_ignore_stack("__ex_cleanup", "*");
209 MC_ignore_stack("__ex_mctx_en", "*");
210 MC_ignore_stack("__ex_mctx_me", "*");
211 MC_ignore_stack("__xbt_ex_ctx_ptr", "*");
212 MC_ignore_stack("_log_ev", "*");
213 MC_ignore_stack("_throw_ctx", "*");
214 MC_ignore_stack("ctx", "*");
216 MC_ignore_stack("next_context", "smx_ctx_sysv_suspend_serial");
217 MC_ignore_stack("i", "smx_ctx_sysv_suspend_serial");
219 MC_ignore_data_bss(&mc_comp_times, sizeof(mc_comp_times));
220 MC_ignore_data_bss(&mc_snapshot_comparison_time, sizeof(mc_snapshot_comparison_time));
221 MC_ignore_data_bss(&mc_time, sizeof(mc_time));
228 void MC_init_dot_output(){
235 colors[5] = "purple";
236 colors[6] = "yellow";
237 colors[7] = "orange";
239 dot_output = fopen(_sg_mc_dot_output_file, "w");
241 if(dot_output == NULL){
242 perror("Error open dot output file");
246 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");
250 void MC_modelcheck_safety(void)
252 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
254 /* Check if MC is already initialized */
255 if (initial_state_safety)
258 mc_time = xbt_new0(double, simix_process_maxpid);
260 /* mc_time refers to clock for each process -> ignore it for heap comparison */
261 MC_ignore_heap(mc_time, simix_process_maxpid * sizeof(double));
263 /* Initialize the data structures that must be persistent across every
264 iteration of the model-checker (in RAW memory) */
268 /* Initialize statistics */
269 mc_stats = xbt_new0(s_mc_stats_t, 1);
270 mc_stats->state_size = 1;
272 /* Create exploration stack */
273 mc_stack_safety = xbt_fifo_new();
277 if(_sg_mc_visited > 0){
281 MC_init_memory_map_info();
282 get_libsimgrid_plt_section();
283 get_binary_plt_section();
290 /* Save the initial state */
291 initial_state_safety = xbt_new0(s_mc_global_t, 1);
292 initial_state_safety->snapshot = MC_take_snapshot();
303 void MC_modelcheck_liveness(){
305 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
309 mc_time = xbt_new0(double, simix_process_maxpid);
311 /* mc_time refers to clock for each process -> ignore it for heap comparison */
312 MC_ignore_heap(mc_time, simix_process_maxpid * sizeof(double));
316 /* Initialize statistics */
317 mc_stats = xbt_new0(s_mc_stats_t, 1);
318 mc_stats->state_size = 1;
320 /* Create exploration stack */
321 mc_stack_liveness = xbt_fifo_new();
323 /* Create the initial state */
324 initial_state_liveness = xbt_new0(s_mc_global_t, 1);
331 MC_print_statistics(mc_stats);
343 if((_sg_mc_dot_output_file != NULL) && (_sg_mc_dot_output_file[0]!='\0')){
344 fprintf(dot_output, "}\n");
354 int SIMIX_pre_mc_random(smx_simcall_t simcall){
356 return simcall->mc_value;
362 /*FIXME: return mc_current_state->executed_transition->random.value;*/
363 return simcall_mc_random();
367 * \brief Schedules all the process that are ready to run
369 void MC_wait_for_requests(void)
371 smx_process_t process;
375 while (!xbt_dynar_is_empty(simix_global->process_to_run)) {
376 SIMIX_process_runall();
377 xbt_dynar_foreach(simix_global->process_that_ran, iter, process) {
378 req = &process->simcall;
379 if (req->call != SIMCALL_NONE && !MC_request_is_visible(req))
380 SIMIX_simcall_pre(req, 0);
385 int MC_deadlock_check()
387 int deadlock = FALSE;
388 smx_process_t process;
389 if(xbt_swag_size(simix_global->process_list)){
391 xbt_swag_foreach(process, simix_global->process_list){
392 if(process->simcall.call != SIMCALL_NONE
393 && MC_request_is_enabled(&process->simcall)){
403 * \brief Re-executes from the state at position start all the transitions indicated by
404 * a given model-checker stack.
405 * \param stack The stack with the transitions to execute.
406 * \param start Start index to begin the re-execution.
408 void MC_replay(xbt_fifo_t stack, int start)
410 int raw_mem = (mmalloc_get_current_heap() == raw_heap);
412 int value, i = 1, count = 1;
414 smx_simcall_t req = NULL, saved_req = NULL;
415 xbt_fifo_item_t item, start_item;
417 smx_process_t process = NULL;
419 XBT_DEBUG("**** Begin Replay ****");
422 /* Restore the initial state */
423 MC_restore_snapshot(initial_state_safety->snapshot);
424 /* At the moment of taking the snapshot the raw heap was set, so restoring
425 * it will set it back again, we have to unset it to continue */
429 start_item = xbt_fifo_get_last_item(stack);
432 start_item = xbt_fifo_get_prev_item(start_item);
438 xbt_dict_reset(first_enabled_state);
439 xbt_swag_foreach(process, simix_global->process_list){
440 if(MC_process_is_enabled(process)){
441 char *key = bprintf("%lu", process->pid);
442 char *data = bprintf("%d", count);
443 xbt_dict_set(first_enabled_state, key, data, NULL);
450 /* Traverse the stack from the state at position start and re-execute the transitions */
451 for (item = start_item;
452 item != xbt_fifo_get_first_item(stack);
453 item = xbt_fifo_get_prev_item(item)) {
455 state = (mc_state_t) xbt_fifo_get_item_content(item);
456 saved_req = MC_state_get_executed_request(state, &value);
459 char *key = bprintf("%lu", saved_req->issuer->pid);
460 xbt_dict_remove(first_enabled_state, key);
465 /* because we got a copy of the executed request, we have to fetch the
466 real one, pointed by the request field of the issuer process */
467 req = &saved_req->issuer->simcall;
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: %s (%p)", req_str, state);
477 SIMIX_simcall_pre(req, value);
478 MC_wait_for_requests();
483 /* Insert in dict all enabled processes */
484 xbt_swag_foreach(process, simix_global->process_list){
485 if(MC_process_is_enabled(process) /*&& !MC_state_process_is_done(state, process)*/){
486 char *key = bprintf("%lu", process->pid);
487 if(xbt_dict_get_or_null(first_enabled_state, key) == NULL){
488 char *data = bprintf("%d", count);
489 xbt_dict_set(first_enabled_state, key, data, NULL);
496 /* Update statistics */
497 mc_stats->visited_states++;
498 mc_stats->executed_transitions++;
502 XBT_DEBUG("**** End Replay ****");
512 void MC_replay_liveness(xbt_fifo_t stack, int all_stack)
515 initial_state_liveness->raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
519 smx_simcall_t req = NULL, saved_req = NULL;
520 xbt_fifo_item_t item;
525 XBT_DEBUG("**** Begin Replay ****");
527 /* Restore the initial state */
528 MC_restore_snapshot(initial_state_liveness->snapshot);
530 /* At the moment of taking the snapshot the raw heap was set, so restoring
531 * it will set it back again, we have to unset it to continue */
532 if(!initial_state_liveness->raw_mem_set)
537 item = xbt_fifo_get_last_item(stack);
539 while(depth <= xbt_fifo_size(stack)){
541 pair = (mc_pair_t) xbt_fifo_get_item_content(item);
542 state = (mc_state_t) pair->graph_state;
544 if(pair->requests > 0){
546 saved_req = MC_state_get_executed_request(state, &value);
547 //XBT_DEBUG("SavedReq->call %u", saved_req->call);
549 if(saved_req != NULL){
550 /* because we got a copy of the executed request, we have to fetch the
551 real one, pointed by the request field of the issuer process */
552 req = &saved_req->issuer->simcall;
553 //XBT_DEBUG("Req->call %u", req->call);
555 /* Debug information */
556 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
557 req_str = MC_request_to_string(req, value);
558 XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
564 SIMIX_simcall_pre(req, value);
565 MC_wait_for_requests();
570 /* Update statistics */
571 mc_stats->visited_pairs++;
572 mc_stats->executed_transitions++;
574 item = xbt_fifo_get_prev_item(item);
579 /* Traverse the stack from the initial state and re-execute the transitions */
580 for (item = xbt_fifo_get_last_item(stack);
581 item != xbt_fifo_get_first_item(stack);
582 item = xbt_fifo_get_prev_item(item)) {
584 pair = (mc_pair_t) xbt_fifo_get_item_content(item);
585 state = (mc_state_t) pair->graph_state;
587 if(pair->requests > 0){
589 saved_req = MC_state_get_executed_request(state, &value);
590 //XBT_DEBUG("SavedReq->call %u", saved_req->call);
592 if(saved_req != NULL){
593 /* because we got a copy of the executed request, we have to fetch the
594 real one, pointed by the request field of the issuer process */
595 req = &saved_req->issuer->simcall;
596 //XBT_DEBUG("Req->call %u", req->call);
598 /* Debug information */
599 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
600 req_str = MC_request_to_string(req, value);
601 XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
607 SIMIX_simcall_pre(req, value);
608 MC_wait_for_requests();
613 /* Update statistics */
614 mc_stats->visited_pairs++;
615 mc_stats->executed_transitions++;
619 XBT_DEBUG("**** End Replay ****");
621 if(initial_state_liveness->raw_mem_set)
629 * \brief Dumps the contents of a model-checker's stack and shows the actual
631 * \param stack The stack to dump
633 void MC_dump_stack_safety(xbt_fifo_t stack)
636 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
638 MC_show_stack_safety(stack);
640 if(!_sg_mc_checkpoint){
645 while ((state = (mc_state_t) xbt_fifo_pop(stack)) != NULL)
646 MC_state_delete(state);
659 void MC_show_stack_safety(xbt_fifo_t stack)
663 xbt_fifo_item_t item;
665 char *req_str = NULL;
667 for (item = xbt_fifo_get_last_item(stack);
668 (item ? (state = (mc_state_t) (xbt_fifo_get_item_content(item)))
669 : (NULL)); item = xbt_fifo_get_prev_item(item)) {
670 req = MC_state_get_executed_request(state, &value);
672 req_str = MC_request_to_string(req, value);
673 XBT_INFO("%s", req_str);
679 void MC_show_deadlock(smx_simcall_t req)
681 /*char *req_str = NULL;*/
682 XBT_INFO("**************************");
683 XBT_INFO("*** DEAD-LOCK DETECTED ***");
684 XBT_INFO("**************************");
685 XBT_INFO("Locked request:");
686 /*req_str = MC_request_to_string(req);
687 XBT_INFO("%s", req_str);
689 XBT_INFO("Counter-example execution trace:");
690 MC_dump_stack_safety(mc_stack_safety);
694 void MC_show_stack_liveness(xbt_fifo_t stack){
697 xbt_fifo_item_t item;
699 char *req_str = NULL;
701 for (item = xbt_fifo_get_last_item(stack);
702 (item ? (pair = (mc_pair_t) (xbt_fifo_get_item_content(item)))
703 : (NULL)); item = xbt_fifo_get_prev_item(item)) {
704 req = MC_state_get_executed_request(pair->graph_state, &value);
706 if(pair->requests>0){
707 req_str = MC_request_to_string(req, value);
708 XBT_INFO("%s", req_str);
711 XBT_INFO("End of system requests but evolution in Büchi automaton");
717 void MC_dump_stack_liveness(xbt_fifo_t stack){
719 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
724 while ((pair = (mc_pair_t) xbt_fifo_pop(stack)) != NULL)
725 MC_pair_delete(pair);
734 void MC_print_statistics(mc_stats_t stats)
736 if(stats->expanded_pairs == 0){
737 XBT_INFO("Expanded states = %lu", stats->expanded_states);
738 XBT_INFO("Visited states = %lu", stats->visited_states);
740 XBT_INFO("Expanded pairs = %lu", stats->expanded_pairs);
741 XBT_INFO("Visited pairs = %lu", stats->visited_pairs);
743 XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
746 void MC_assert(int prop)
748 if (MC_is_active() && !prop){
749 XBT_INFO("**************************");
750 XBT_INFO("*** PROPERTY NOT VALID ***");
751 XBT_INFO("**************************");
752 XBT_INFO("Counter-example execution trace:");
753 MC_dump_stack_safety(mc_stack_safety);
754 MC_print_statistics(mc_stats);
756 if((_sg_mc_dot_output_file != NULL) && (_sg_mc_dot_output_file[0]!='\0')){
757 fprintf(dot_output, "}\n");
765 static void MC_assert_pair(int prop){
766 if (MC_is_active() && !prop) {
767 XBT_INFO("**************************");
768 XBT_INFO("*** PROPERTY NOT VALID ***");
769 XBT_INFO("**************************");
770 //XBT_INFO("Counter-example execution trace:");
771 MC_show_stack_liveness(mc_stack_liveness);
772 //MC_dump_snapshot_stack(mc_snapshot_stack);
773 MC_print_statistics(mc_stats);
778 void MC_process_clock_add(smx_process_t process, double amount)
780 mc_time[process->pid] += amount;
783 double MC_process_clock_get(smx_process_t process)
787 return mc_time[process->pid];
795 void MC_automaton_load(const char *file){
797 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
801 if (_mc_property_automaton == NULL)
802 _mc_property_automaton = xbt_automaton_new();
804 xbt_automaton_load(_mc_property_automaton,file);
813 void MC_automaton_new_propositional_symbol(const char* id, void* fct) {
815 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
819 if (_mc_property_automaton == NULL)
820 _mc_property_automaton = xbt_automaton_new();
822 xbt_automaton_propositional_symbol_new(_mc_property_automaton,id,fct);
831 /************ MC_ignore ***********/
833 void heap_ignore_region_free(mc_heap_ignore_region_t r){
837 void heap_ignore_region_free_voidp(void *r){
838 heap_ignore_region_free((mc_heap_ignore_region_t) * (void **) r);
841 void MC_ignore_heap(void *address, size_t size){
843 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
847 mc_heap_ignore_region_t region = NULL;
848 region = xbt_new0(s_mc_heap_ignore_region_t, 1);
849 region->address = address;
852 region->block = ((char*)address - (char*)((xbt_mheap_t)std_heap)->heapbase) / BLOCKSIZE + 1;
854 if(((xbt_mheap_t)std_heap)->heapinfo[region->block].type == 0){
855 region->fragment = -1;
856 ((xbt_mheap_t)std_heap)->heapinfo[region->block].busy_block.ignore = 1;
858 region->fragment = ((uintptr_t) (ADDR2UINT (address) % (BLOCKSIZE))) >> ((xbt_mheap_t)std_heap)->heapinfo[region->block].type;
859 ((xbt_mheap_t)std_heap)->heapinfo[region->block].busy_frag.ignore[region->fragment] = 1;
862 if(mc_heap_comparison_ignore == NULL){
863 mc_heap_comparison_ignore = xbt_dynar_new(sizeof(mc_heap_ignore_region_t), heap_ignore_region_free_voidp);
864 xbt_dynar_push(mc_heap_comparison_ignore, ®ion);
870 unsigned int cursor = 0;
871 mc_heap_ignore_region_t current_region = NULL;
873 int end = xbt_dynar_length(mc_heap_comparison_ignore) - 1;
876 cursor = (start + end) / 2;
877 current_region = (mc_heap_ignore_region_t)xbt_dynar_get_as(mc_heap_comparison_ignore, cursor, mc_heap_ignore_region_t);
878 if(current_region->address == address){
879 heap_ignore_region_free(region);
884 if(current_region->address < address)
886 if(current_region->address > address)
890 if(current_region->address < address)
891 xbt_dynar_insert_at(mc_heap_comparison_ignore, cursor + 1, ®ion);
893 xbt_dynar_insert_at(mc_heap_comparison_ignore, cursor, ®ion);
901 void MC_remove_ignore_heap(void *address, size_t size){
903 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
907 unsigned int cursor = 0;
909 int end = xbt_dynar_length(mc_heap_comparison_ignore) - 1;
910 mc_heap_ignore_region_t region;
911 int ignore_found = 0;
914 cursor = (start + end) / 2;
915 region = (mc_heap_ignore_region_t)xbt_dynar_get_as(mc_heap_comparison_ignore, cursor, mc_heap_ignore_region_t);
916 if(region->address == address){
920 if(region->address < address)
922 if(region->address > address){
923 if((char * )region->address <= ((char *)address + size)){
931 if(ignore_found == 1){
932 xbt_dynar_remove_at(mc_heap_comparison_ignore, cursor, NULL);
933 MC_remove_ignore_heap(address, size);
943 void MC_ignore_data_bss(void *address, size_t size){
945 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
949 if(mc_data_bss_comparison_ignore == NULL)
950 mc_data_bss_comparison_ignore = xbt_dynar_new(sizeof(mc_data_bss_ignore_variable_t), NULL);
952 mc_data_bss_ignore_variable_t var = NULL;
953 var = xbt_new0(s_mc_data_bss_ignore_variable_t, 1);
954 var->address = address;
957 if(xbt_dynar_is_empty(mc_data_bss_comparison_ignore)){
959 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, 0, &var);
963 unsigned int cursor = 0;
965 int end = xbt_dynar_length(mc_data_bss_comparison_ignore) - 1;
966 mc_data_bss_ignore_variable_t current_var = NULL;
969 cursor = (start + end) / 2;
970 current_var = (mc_data_bss_ignore_variable_t)xbt_dynar_get_as(mc_data_bss_comparison_ignore, cursor, mc_data_bss_ignore_variable_t);
971 if(current_var->address == address){
977 if(current_var->address < address)
979 if(current_var->address > address)
983 if(current_var->address < address)
984 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, cursor + 1, &var);
986 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, cursor, &var);
990 /* Remove variable from mc_global_variables */
992 if(mc_global_variables != NULL){
994 unsigned int cursor = 0;
996 int end = xbt_dynar_length(mc_global_variables) - 1;
997 global_variable_t current_var;
1000 while(start <= end){
1001 cursor = (start + end) / 2;
1002 current_var = (global_variable_t)xbt_dynar_get_as(mc_global_variables, cursor, global_variable_t);
1003 if(current_var->address == var->address){
1007 if(current_var->address < address)
1009 if(current_var->address > address)
1014 xbt_dynar_remove_at(mc_global_variables, cursor, NULL);
1024 static size_t data_bss_ignore_size(void *address){
1025 unsigned int cursor = 0;
1027 int end = xbt_dynar_length(mc_data_bss_comparison_ignore) - 1;
1028 mc_data_bss_ignore_variable_t var;
1030 while(start <= end){
1031 cursor = (start + end) / 2;
1032 var = (mc_data_bss_ignore_variable_t)xbt_dynar_get_as(mc_data_bss_comparison_ignore, cursor, mc_data_bss_ignore_variable_t);
1033 if(var->address == address)
1035 if(var->address < address){
1036 if((void *)((char *)var->address + var->size) > address)
1037 return (char *)var->address + var->size - (char*)address;
1041 if(var->address > address)
1050 void MC_ignore_stack(const char *var_name, const char *frame_name){
1052 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
1056 if(mc_stack_comparison_ignore == NULL)
1057 mc_stack_comparison_ignore = xbt_dynar_new(sizeof(mc_stack_ignore_variable_t), NULL);
1059 if(xbt_dynar_is_empty(mc_stack_comparison_ignore)){
1061 mc_stack_ignore_variable_t var = NULL;
1062 var = xbt_new0(s_mc_stack_ignore_variable_t, 1);
1063 var->var_name = strdup(var_name);
1064 var->frame = strdup(frame_name);
1066 xbt_dynar_insert_at(mc_stack_comparison_ignore, 0, &var);
1070 unsigned int cursor = 0;
1072 int end = xbt_dynar_length(mc_stack_comparison_ignore) - 1;
1073 mc_stack_ignore_variable_t current_var = NULL;
1075 while(start <= end){
1076 cursor = (start + end) / 2;
1077 current_var = (mc_stack_ignore_variable_t)xbt_dynar_get_as(mc_stack_comparison_ignore, cursor, mc_stack_ignore_variable_t);
1078 if(strcmp(current_var->frame, frame_name) == 0){
1079 if(strcmp(current_var->var_name, var_name) == 0){
1085 if(strcmp(current_var->var_name, var_name) < 0)
1087 if(strcmp(current_var->var_name, var_name) > 0)
1090 if(strcmp(current_var->frame, frame_name) < 0)
1092 if(strcmp(current_var->frame, frame_name) > 0)
1096 mc_stack_ignore_variable_t var = NULL;
1097 var = xbt_new0(s_mc_stack_ignore_variable_t, 1);
1098 var->var_name = strdup(var_name);
1099 var->frame = strdup(frame_name);
1101 if(strcmp(current_var->frame, frame_name) < 0)
1102 xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor + 1, &var);
1104 xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor, &var);
1108 /* Remove variable from mc_local_variables */
1110 if(mc_local_variables != NULL){
1112 if(strcmp(frame_name, "*") != 0){
1113 dw_frame_t frame = xbt_dict_get_or_null(mc_local_variables, frame_name);
1115 xbt_dict_remove(frame->variables, var_name);
1127 void MC_new_stack_area(void *stack, char *name, void* context, size_t size){
1129 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
1132 if(stacks_areas == NULL)
1133 stacks_areas = xbt_dynar_new(sizeof(stack_region_t), NULL);
1135 stack_region_t region = NULL;
1136 region = xbt_new0(s_stack_region_t, 1);
1137 region->address = stack;
1138 region->process_name = strdup(name);
1139 region->context = context;
1140 region->size = size;
1141 region->block = ((char*)stack - (char*)((xbt_mheap_t)std_heap)->heapbase) / BLOCKSIZE + 1;
1142 xbt_dynar_push(stacks_areas, ®ion);
1150 /************ DWARF ***********/
1152 xbt_dict_t MC_get_location_list(const char *elf_file){
1154 char *command = bprintf("objdump -Wo %s", elf_file);
1156 FILE *fp = popen(command, "r");
1159 perror("popen for objdump failed");
1163 int debug = 0; /*Detect if the program has been compiled with -g */
1165 xbt_dict_t location_list = xbt_dict_new_homogeneous(NULL);
1166 char *line = NULL, *loc_expr = NULL;
1170 xbt_dynar_t split = NULL;
1172 while ((read = xbt_getline(&line, &n, fp)) != -1) {
1174 /* Wipeout the new line character */
1175 line[read - 1] = '\0';
1177 xbt_str_trim(line, NULL);
1182 if(strlen(line) == 0)
1187 if(strncmp(line, elf_file, strlen(elf_file)) == 0)
1190 if(strncmp(line, "Contents", 8) == 0)
1193 if(strncmp(line, "Offset", 6) == 0){
1200 XBT_INFO("Your program must be compiled with -g");
1204 xbt_dynar_t loclist = xbt_dynar_new(sizeof(dw_location_entry_t), NULL);
1206 xbt_str_strip_spaces(line);
1207 split = xbt_str_split(line, " ");
1209 while(read != -1 && strcmp("<End", (char *)xbt_dynar_get_as(split, 1, char *)) != 0){
1211 dw_location_entry_t new_entry = xbt_new0(s_dw_location_entry_t, 1);
1212 new_entry->lowpc = strtoul((char *)xbt_dynar_get_as(split, 1, char *), NULL, 16);
1213 new_entry->highpc = strtoul((char *)xbt_dynar_get_as(split, 2, char *), NULL, 16);
1216 while(cursor_remove < 3){
1217 xbt_dynar_remove_at(split, 0, NULL);
1221 loc_expr = xbt_str_join(split, " ");
1222 xbt_str_ltrim(loc_expr, "(");
1223 xbt_str_rtrim(loc_expr, ")");
1224 new_entry->location = get_location(NULL, loc_expr);
1226 xbt_dynar_push(loclist, &new_entry);
1228 xbt_dynar_free(&split);
1231 read = xbt_getline(&line, &n, fp);
1233 line[read - 1] = '\0';
1234 xbt_str_strip_spaces(line);
1235 split = xbt_str_split(line, " ");
1241 char *key = bprintf("%d", (int)strtoul((char *)xbt_dynar_get_as(split, 0, char *), NULL, 16));
1242 xbt_dict_set(location_list, key, loclist, NULL);
1245 xbt_dynar_free(&split);
1253 return location_list;
1256 static dw_frame_t get_frame_by_offset(xbt_dict_t all_variables, unsigned long int offset){
1258 xbt_dict_cursor_t cursor = NULL;
1262 xbt_dict_foreach(all_variables, cursor, name, res) {
1263 if(offset >= res->start && offset < res->end){
1264 xbt_dict_cursor_free(&cursor);
1269 xbt_dict_cursor_free(&cursor);
1274 void MC_get_local_variables(const char *elf_file, xbt_dict_t location_list, xbt_dict_t *all_variables){
1276 char *command = bprintf("objdump -Wi %s", elf_file);
1278 FILE *fp = popen(command, "r");
1281 perror("popen for objdump failed");
1283 char *line = NULL, *origin, *abstract_origin, *current_frame = NULL;
1286 int valid_variable = 1;
1287 char *node_type = NULL, *location_type = NULL, *variable_name = NULL, *loc_expr = NULL;
1288 xbt_dynar_t split = NULL, split2 = NULL;
1290 xbt_dict_t variables_origin = xbt_dict_new_homogeneous(NULL);
1291 xbt_dict_t subprograms_origin = xbt_dict_new_homogeneous(NULL);
1292 char *subprogram_name = NULL, *subprogram_start = NULL, *subprogram_end = NULL;
1293 int new_frame = 0, new_variable = 0;
1294 dw_frame_t variable_frame, subroutine_frame = NULL;
1296 read = xbt_getline(&line, &n, fp);
1298 while (read != -1) {
1301 read = xbt_getline(&line, &n, fp);
1305 /* Wipeout the new line character */
1306 line[read - 1] = '\0';
1308 if(strlen(line) == 0){
1309 read = xbt_getline(&line, &n, fp);
1313 xbt_str_ltrim(line, NULL);
1314 xbt_str_strip_spaces(line);
1317 read = xbt_getline(&line, &n, fp);
1321 xbt_dynar_free(&split);
1322 split = xbt_str_split(line, " ");
1325 node_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1327 if(strcmp(node_type, "(DW_TAG_subprogram)") == 0){ /* New frame */
1329 dw_frame_t frame = NULL;
1331 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1332 subprogram_start = strdup(strtok(NULL, "<"));
1333 xbt_str_rtrim(subprogram_start, ">:");
1335 read = xbt_getline(&line, &n, fp);
1340 read = xbt_getline(&line, &n, fp);
1344 /* Wipeout the new line character */
1345 line[read - 1] = '\0';
1347 if(strlen(line) == 0){
1348 read = xbt_getline(&line, &n, fp);
1352 xbt_dynar_free(&split);
1353 xbt_str_rtrim(line, NULL);
1354 xbt_str_strip_spaces(line);
1355 split = xbt_str_split(line, " ");
1357 node_type = xbt_dynar_get_as(split, 1, char *);
1359 if(strncmp(node_type, "DW_AT_", 6) != 0)
1362 if(strcmp(node_type, "DW_AT_sibling") == 0){
1364 subprogram_end = strdup(xbt_dynar_get_as(split, 3, char*));
1365 xbt_str_ltrim(subprogram_end, "<0x");
1366 xbt_str_rtrim(subprogram_end, ">");
1368 }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){ /* Frame already in dict */
1371 abstract_origin = strdup(xbt_dynar_get_as(split, 2, char*));
1372 xbt_str_ltrim(abstract_origin, "<0x");
1373 xbt_str_rtrim(abstract_origin, ">");
1374 subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, abstract_origin);
1375 frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
1376 xbt_free(abstract_origin);
1378 }else if(strcmp(node_type, "DW_AT_name") == 0){
1381 xbt_free(current_frame);
1382 frame = xbt_new0(s_dw_frame_t, 1);
1383 frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1384 frame->variables = xbt_dict_new_homogeneous(NULL);
1385 frame->frame_base = xbt_new0(s_dw_location_t, 1);
1386 current_frame = strdup(frame->name);
1388 xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
1390 }else if(strcmp(node_type, "DW_AT_frame_base") == 0){
1392 location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1394 if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
1396 frame->frame_base = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
1400 xbt_str_strip_spaces(line);
1401 split2 = xbt_str_split(line, "(");
1402 xbt_dynar_remove_at(split2, 0, NULL);
1403 loc_expr = xbt_str_join(split2, " ");
1404 xbt_str_rtrim(loc_expr, ")");
1405 frame->frame_base = get_location(NULL, loc_expr);
1406 xbt_dynar_free(&split2);
1411 }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
1414 frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1416 }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
1419 frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1421 }else if(strcmp(node_type, "DW_AT_MIPS_linkage_name:") == 0){
1423 xbt_free(frame->name);
1424 xbt_free(current_frame);
1425 frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1426 current_frame = strdup(frame->name);
1427 xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
1431 read = xbt_getline(&line, &n, fp);
1436 frame->start = strtoul(subprogram_start, NULL, 16);
1437 if(subprogram_end != NULL)
1438 frame->end = strtoul(subprogram_end, NULL, 16);
1439 xbt_dict_set(*all_variables, frame->name, frame, NULL);
1442 xbt_free(subprogram_start);
1443 xbt_free(subprogram_end);
1444 subprogram_end = NULL;
1447 }else if(strcmp(node_type, "(DW_TAG_variable)") == 0){ /* New variable */
1449 dw_local_variable_t var = NULL;
1451 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1452 origin = strdup(strtok(NULL, "<"));
1453 xbt_str_rtrim(origin, ">:");
1455 read = xbt_getline(&line, &n, fp);
1460 read = xbt_getline(&line, &n, fp);
1464 /* Wipeout the new line character */
1465 line[read - 1] = '\0';
1467 if(strlen(line) == 0){
1468 read = xbt_getline(&line, &n, fp);
1472 xbt_dynar_free(&split);
1473 xbt_str_rtrim(line, NULL);
1474 xbt_str_strip_spaces(line);
1475 split = xbt_str_split(line, " ");
1477 node_type = xbt_dynar_get_as(split, 1, char *);
1479 if(strncmp(node_type, "DW_AT_", 6) != 0)
1482 if(strcmp(node_type, "DW_AT_name") == 0){
1485 var = xbt_new0(s_dw_local_variable_t, 1);
1486 var->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1488 xbt_dict_set(variables_origin, origin, var->name, NULL);
1490 }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
1493 abstract_origin = xbt_dynar_get_as(split, 2, char *);
1494 xbt_str_ltrim(abstract_origin, "<0x");
1495 xbt_str_rtrim(abstract_origin, ">");
1497 variable_name = (char *)xbt_dict_get_or_null(variables_origin, abstract_origin);
1498 variable_frame = get_frame_by_offset(*all_variables, strtoul(abstract_origin, NULL, 16));
1499 var = xbt_dict_get_or_null(variable_frame->variables, variable_name);
1501 }else if(strcmp(node_type, "DW_AT_location") == 0){
1503 if(valid_variable == 1 && var != NULL){
1505 var->location = xbt_new0(s_dw_location_t, 1);
1507 location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1509 if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
1511 var->location = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
1515 xbt_str_strip_spaces(line);
1516 split2 = xbt_str_split(line, "(");
1517 xbt_dynar_remove_at(split2, 0, NULL);
1518 loc_expr = xbt_str_join(split2, " ");
1519 xbt_str_rtrim(loc_expr, ")");
1520 var->location = get_location(NULL, loc_expr);
1521 xbt_dynar_free(&split2);
1528 }else if(strcmp(node_type, "DW_AT_external") == 0){
1534 read = xbt_getline(&line, &n, fp);
1538 if(new_variable == 1 && valid_variable == 1){
1540 variable_frame = xbt_dict_get_or_null(*all_variables, current_frame);
1541 xbt_dict_set(variable_frame->variables, var->name, var, NULL);
1547 }else if(strcmp(node_type, "(DW_TAG_inlined_subroutine)") == 0){
1549 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1550 origin = strdup(strtok(NULL, "<"));
1551 xbt_str_rtrim(origin, ">:");
1553 read = xbt_getline(&line, &n, fp);
1557 /* Wipeout the new line character */
1558 line[read - 1] = '\0';
1561 read = xbt_getline(&line, &n, fp);
1565 if(strlen(line) == 0){
1566 read = xbt_getline(&line, &n, fp);
1570 xbt_dynar_free(&split);
1571 xbt_str_rtrim(line, NULL);
1572 xbt_str_strip_spaces(line);
1573 split = xbt_str_split(line, " ");
1575 if(strncmp(xbt_dynar_get_as(split, 1, char *), "DW_AT_", 6) != 0)
1578 node_type = xbt_dynar_get_as(split, 1, char *);
1580 if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
1582 origin = xbt_dynar_get_as(split, 2, char *);
1583 xbt_str_ltrim(origin, "<0x");
1584 xbt_str_rtrim(origin, ">");
1586 subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, origin);
1587 subroutine_frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
1589 }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
1591 subroutine_frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1593 }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
1595 subroutine_frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1598 read = xbt_getline(&line, &n, fp);
1604 read = xbt_getline(&line, &n, fp);
1610 xbt_dynar_free(&split);
1617 static dw_location_t get_location(xbt_dict_t location_list, char *expr){
1619 dw_location_t loc = xbt_new0(s_dw_location_t, 1);
1621 if(location_list != NULL){
1623 char *key = bprintf("%d", (int)strtoul(expr, NULL, 16));
1624 loc->type = e_dw_loclist;
1625 loc->location.loclist = (xbt_dynar_t)xbt_dict_get_or_null(location_list, key);
1626 if(loc->location.loclist == NULL)
1627 XBT_INFO("Key not found in loclist");
1634 char *tok = NULL, *tok2 = NULL;
1636 xbt_dynar_t tokens1 = xbt_str_split(expr, ";");
1637 xbt_dynar_t tokens2;
1639 loc->type = e_dw_compose;
1640 loc->location.compose = xbt_dynar_new(sizeof(dw_location_t), NULL);
1642 while(cursor < xbt_dynar_length(tokens1)){
1644 tok = xbt_dynar_get_as(tokens1, cursor, char*);
1645 tokens2 = xbt_str_split(tok, " ");
1646 tok2 = xbt_dynar_get_as(tokens2, 0, char*);
1648 if(strncmp(tok2, "DW_OP_reg", 9) == 0){
1649 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1650 new_element->type = e_dw_register;
1651 new_element->location.reg = atoi(strtok(tok2, "DW_OP_reg"));
1652 xbt_dynar_push(loc->location.compose, &new_element);
1653 }else if(strcmp(tok2, "DW_OP_fbreg:") == 0){
1654 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1655 new_element->type = e_dw_fbregister_op;
1656 new_element->location.fbreg_op = atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*));
1657 xbt_dynar_push(loc->location.compose, &new_element);
1658 }else if(strncmp(tok2, "DW_OP_breg", 10) == 0){
1659 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1660 new_element->type = e_dw_bregister_op;
1661 new_element->location.breg_op.reg = atoi(strtok(tok2, "DW_OP_breg"));
1662 new_element->location.breg_op.offset = atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*));
1663 xbt_dynar_push(loc->location.compose, &new_element);
1664 }else if(strncmp(tok2, "DW_OP_lit", 9) == 0){
1665 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1666 new_element->type = e_dw_lit;
1667 new_element->location.lit = atoi(strtok(tok2, "DW_OP_lit"));
1668 xbt_dynar_push(loc->location.compose, &new_element);
1669 }else if(strcmp(tok2, "DW_OP_piece:") == 0){
1670 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1671 new_element->type = e_dw_piece;
1672 new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*));
1673 /*if(strlen(xbt_dynar_get_as(tokens2, 1, char*)) > 1)
1674 new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1676 new_element->location.piece = xbt_dynar_get_as(tokens2, 1, char*)[0] - '0';*/
1677 xbt_dynar_push(loc->location.compose, &new_element);
1678 }else if(strcmp(tok2, "DW_OP_plus_uconst:") == 0){
1679 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1680 new_element->type = e_dw_plus_uconst;
1681 new_element->location.plus_uconst = atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char *));
1682 xbt_dynar_push(loc->location.compose, &new_element);
1683 }else if(strcmp(tok, "DW_OP_abs") == 0 ||
1684 strcmp(tok, "DW_OP_and") == 0 ||
1685 strcmp(tok, "DW_OP_div") == 0 ||
1686 strcmp(tok, "DW_OP_minus") == 0 ||
1687 strcmp(tok, "DW_OP_mod") == 0 ||
1688 strcmp(tok, "DW_OP_mul") == 0 ||
1689 strcmp(tok, "DW_OP_neg") == 0 ||
1690 strcmp(tok, "DW_OP_not") == 0 ||
1691 strcmp(tok, "DW_OP_or") == 0 ||
1692 strcmp(tok, "DW_OP_plus") == 0){
1693 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1694 new_element->type = e_dw_arithmetic;
1695 new_element->location.arithmetic = strdup(strtok(tok2, "DW_OP_"));
1696 xbt_dynar_push(loc->location.compose, &new_element);
1697 }else if(strcmp(tok, "DW_OP_stack_value") == 0){
1698 }else if(strcmp(tok2, "DW_OP_deref_size:") == 0){
1699 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1700 new_element->type = e_dw_deref;
1701 new_element->location.deref_size = (unsigned int short) atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*));
1702 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1703 new_element->location.deref_size = atoi(xbt_dynar_get_as(tokens, cursor, char*));
1705 new_element->location.deref_size = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
1706 xbt_dynar_push(loc->location.compose, &new_element);
1707 }else if(strcmp(tok, "DW_OP_deref") == 0){
1708 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1709 new_element->type = e_dw_deref;
1710 new_element->location.deref_size = sizeof(void *);
1711 xbt_dynar_push(loc->location.compose, &new_element);
1712 }else if(strcmp(tok2, "DW_OP_constu:") == 0){
1713 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1714 new_element->type = e_dw_uconstant;
1715 new_element->location.uconstant.bytes = 1;
1716 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*)));
1717 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1718 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens, cursor, char*)));
1720 new_element->location.uconstant.value = (unsigned long int)(xbt_dynar_get_as(tokens, cursor, char*)[0] - '0');*/
1721 xbt_dynar_push(loc->location.compose, &new_element);
1722 }else if(strcmp(tok2, "DW_OP_consts:") == 0){
1723 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1724 new_element->type = e_dw_sconstant;
1725 new_element->location.sconstant.bytes = 1;
1726 new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*)));
1727 xbt_dynar_push(loc->location.compose, &new_element);
1728 }else if(strcmp(tok2, "DW_OP_const1u:") == 0 ||
1729 strcmp(tok2, "DW_OP_const2u:") == 0 ||
1730 strcmp(tok2, "DW_OP_const4u:") == 0 ||
1731 strcmp(tok2, "DW_OP_const8u:") == 0){
1732 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1733 new_element->type = e_dw_uconstant;
1734 new_element->location.uconstant.bytes = tok2[11] - '0';
1735 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*)));
1736 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1737 new_element->location.constant.value = atoi(xbt_dynar_get_as(tokens, cursor, char*));
1739 new_element->location.constant.value = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
1740 xbt_dynar_push(loc->location.compose, &new_element);
1741 }else if(strcmp(tok, "DW_OP_const1s") == 0 ||
1742 strcmp(tok, "DW_OP_const2s") == 0 ||
1743 strcmp(tok, "DW_OP_const4s") == 0 ||
1744 strcmp(tok, "DW_OP_const8s") == 0){
1745 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1746 new_element->type = e_dw_sconstant;
1747 new_element->location.sconstant.bytes = tok2[11] - '0';
1748 new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*)));
1749 xbt_dynar_push(loc->location.compose, &new_element);
1751 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1752 new_element->type = e_dw_unsupported;
1753 xbt_dynar_push(loc->location.compose, &new_element);
1757 xbt_dynar_free(&tokens2);
1761 xbt_dynar_free(&tokens1);
1770 void print_local_variables(xbt_dict_t list){
1772 dw_location_entry_t entry;
1773 dw_location_t location_entry;
1774 unsigned int cursor3 = 0, cursor4 = 0;
1775 xbt_dict_cursor_t cursor = 0, cursor2 = 0;
1777 char *frame_name, *variable_name;
1778 dw_frame_t current_frame;
1779 dw_local_variable_t current_variable;
1781 xbt_dict_foreach(list, cursor, frame_name, current_frame){
1782 fprintf(stderr, "Frame name : %s\n", current_frame->name);
1783 fprintf(stderr, "Location type : %d\n", current_frame->frame_base->type);
1784 xbt_dict_foreach((xbt_dict_t)current_frame->variables, cursor2, variable_name, current_variable){
1785 fprintf(stderr, "Name : %s\n", current_variable->name);
1786 if(current_variable->location == NULL)
1788 fprintf(stderr, "Location type : %d\n", current_variable->location->type);
1789 switch(current_variable->location->type){
1791 xbt_dynar_foreach(current_variable->location->location.loclist, cursor3, entry){
1792 fprintf(stderr, "Lowpc : %lx, Highpc : %lx,", entry->lowpc, entry->highpc);
1793 switch(entry->location->type){
1794 case e_dw_register :
1795 fprintf(stderr, " Location : in register %d\n", entry->location->location.reg);
1797 case e_dw_bregister_op:
1798 fprintf(stderr, " Location : Add %d to the value in register %d\n", entry->location->location.breg_op.offset, entry->location->location.breg_op.reg);
1801 fprintf(stderr, "Value already kwnown : %d\n", entry->location->location.lit);
1803 case e_dw_fbregister_op:
1804 fprintf(stderr, " Location : %d bytes from logical frame pointer\n", entry->location->location.fbreg_op);
1807 fprintf(stderr, " Location :\n");
1808 xbt_dynar_foreach(entry->location->location.compose, cursor4, location_entry){
1809 switch(location_entry->type){
1810 case e_dw_register :
1811 fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
1813 case e_dw_bregister_op:
1814 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);
1817 fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
1819 case e_dw_fbregister_op:
1820 fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
1823 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);
1825 case e_dw_arithmetic :
1826 fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
1829 fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
1831 case e_dw_uconstant :
1832 fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
1834 case e_dw_sconstant :
1835 fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
1838 fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
1844 fprintf(stderr, "Location type not supported\n");
1851 fprintf(stderr, "Location :\n");
1852 xbt_dynar_foreach(current_variable->location->location.compose, cursor4, location_entry){
1853 switch(location_entry->type){
1854 case e_dw_register :
1855 fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
1857 case e_dw_bregister_op:
1858 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);
1861 fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
1863 case e_dw_fbregister_op:
1864 fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
1867 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);
1869 case e_dw_arithmetic :
1870 fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
1873 fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
1875 case e_dw_uconstant :
1876 fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
1878 case e_dw_sconstant :
1879 fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
1882 fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
1888 fprintf(stderr, "Location type not supported\n");
1896 static void MC_get_global_variables(char *elf_file){
1900 char *command = bprintf("objdump -t -j .data -j .bss %s", elf_file);
1902 fp = popen(command, "r");
1905 perror("popen failed");
1909 if(mc_global_variables == NULL)
1910 mc_global_variables = xbt_dynar_new(sizeof(global_variable_t), global_variable_free_voidp);
1916 xbt_dynar_t line_tokens = NULL;
1917 unsigned long offset;
1919 int type = strcmp(elf_file, xbt_binary_name); /* 0 = binary, other = libsimgrid */
1921 while ((read = xbt_getline(&line, &n, fp)) != -1){
1926 /* Wipeout the new line character */
1927 line[read - 1] = '\0';
1929 xbt_str_strip_spaces(line);
1930 xbt_str_ltrim(line, NULL);
1932 line_tokens = xbt_str_split(line, NULL);
1934 if(xbt_dynar_length(line_tokens) <= 4 || strcmp(xbt_dynar_get_as(line_tokens, 0, char *), "SYMBOL") == 0)
1937 if((strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "__gcov", 6) == 0)
1938 || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "gcov", 4) == 0)
1939 || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), ".data") == 0)
1940 || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), ".bss") == 0)
1941 || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "stderr", 6) == 0)
1942 || ((size_t)strtoul(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 2, char*), NULL, 16) == 0))
1945 global_variable_t var = xbt_new0(s_global_variable_t, 1);
1948 var->address = (void *)strtoul(xbt_dynar_get_as(line_tokens, 0, char*), NULL, 16);
1950 offset = strtoul(xbt_dynar_get_as(line_tokens, 0, char*), NULL, 16);
1951 var->address = (char *)start_text_libsimgrid+offset;
1954 var->size = (size_t)strtoul(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 2, char*), NULL, 16);
1955 var->name = strdup(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*));
1957 if(data_bss_ignore_size(var->address) > 0){
1958 global_variable_free(var);
1960 if(xbt_dynar_is_empty(mc_global_variables)){
1961 xbt_dynar_push(mc_global_variables, &var);
1963 unsigned int cursor = 0;
1965 int end = xbt_dynar_length(mc_global_variables) - 1;
1966 global_variable_t current_var = NULL;
1968 while(start <= end){
1969 cursor = (start + end) / 2;
1970 current_var = (global_variable_t)xbt_dynar_get_as(mc_global_variables, cursor, global_variable_t);
1971 if(current_var->address == var->address)
1973 if(current_var->address < var->address)
1975 if(current_var->address > var->address)
1979 if(current_var->address < var->address)
1980 xbt_dynar_insert_at(mc_global_variables, cursor + 1, &var);
1982 xbt_dynar_insert_at(mc_global_variables, cursor, &var);
1986 xbt_dynar_free(&line_tokens);
1996 void global_variable_free(global_variable_t v){
2001 void global_variable_free_voidp(void *v){
2002 global_variable_free((global_variable_t) * (void **) v);