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);
174 /* Initialize the data structures that must be persistent across every
175 iteration of the model-checker (in RAW memory) */
179 MC_init_memory_map_info();
181 mc_local_variables = xbt_dict_new_homogeneous(NULL);
183 /* Get local variables in binary for state equality detection */
184 xbt_dict_t binary_location_list = MC_get_location_list(xbt_binary_name);
185 MC_get_local_variables(xbt_binary_name, binary_location_list, &mc_local_variables);
187 /* Get local variables in libsimgrid for state equality detection */
188 xbt_dict_t libsimgrid_location_list = MC_get_location_list(libsimgrid_path);
189 MC_get_local_variables(libsimgrid_path, libsimgrid_location_list, &mc_local_variables);
191 xbt_dict_free(&libsimgrid_location_list);
192 xbt_dict_free(&binary_location_list);
194 /* Get .plt section (start and end addresses) for data libsimgrid and data program comparison */
195 get_libsimgrid_plt_section();
196 get_binary_plt_section();
198 /* Get global variables */
199 MC_get_global_variables(xbt_binary_name);
200 MC_get_global_variables(libsimgrid_path);
204 /* Ignore some variables from xbt/ex.h used by exception e for stacks comparison */
205 MC_ignore_stack("e", "*");
206 MC_ignore_stack("__ex_cleanup", "*");
207 MC_ignore_stack("__ex_mctx_en", "*");
208 MC_ignore_stack("__ex_mctx_me", "*");
209 MC_ignore_stack("__xbt_ex_ctx_ptr", "*");
210 MC_ignore_stack("_log_ev", "*");
211 MC_ignore_stack("_throw_ctx", "*");
212 MC_ignore_stack("ctx", "*");
214 MC_ignore_stack("next_context", "smx_ctx_sysv_suspend_serial");
215 MC_ignore_stack("i", "smx_ctx_sysv_suspend_serial");
217 MC_ignore_data_bss(&mc_comp_times, sizeof(mc_comp_times));
218 MC_ignore_data_bss(&mc_snapshot_comparison_time, sizeof(mc_snapshot_comparison_time));
219 MC_ignore_data_bss(&mc_time, sizeof(mc_time));
226 void MC_init_dot_output(){
233 colors[5] = "purple";
234 colors[6] = "yellow";
235 colors[7] = "orange";
237 dot_output = fopen(_sg_mc_dot_output_file, "w");
239 if(dot_output == NULL){
240 perror("Error open dot output file");
244 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");
248 void MC_modelcheck_safety(void)
250 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
252 /* Check if MC is already initialized */
253 if (initial_state_safety)
256 mc_time = xbt_new0(double, simix_process_maxpid);
258 /* mc_time refers to clock for each process -> ignore it for heap comparison */
259 MC_ignore_heap(mc_time, simix_process_maxpid * sizeof(double));
261 /* Initialize the data structures that must be persistent across every
262 iteration of the model-checker (in RAW memory) */
266 /* Initialize statistics */
267 mc_stats = xbt_new0(s_mc_stats_t, 1);
268 mc_stats->state_size = 1;
270 /* Create exploration stack */
271 mc_stack_safety = xbt_fifo_new();
275 if(_sg_mc_visited > 0){
279 MC_init_memory_map_info();
280 get_libsimgrid_plt_section();
281 get_binary_plt_section();
288 /* Save the initial state */
289 initial_state_safety = xbt_new0(s_mc_global_t, 1);
290 initial_state_safety->snapshot = MC_take_snapshot();
301 void MC_modelcheck_liveness(){
303 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
307 mc_time = xbt_new0(double, simix_process_maxpid);
309 /* mc_time refers to clock for each process -> ignore it for heap comparison */
310 MC_ignore_heap(mc_time, simix_process_maxpid * sizeof(double));
314 /* Initialize statistics */
315 mc_stats_pair = xbt_new0(s_mc_stats_pair_t, 1);
317 /* Create exploration stack */
318 mc_stack_liveness = xbt_fifo_new();
320 initial_state_liveness = xbt_new0(s_mc_global_t, 1);
327 MC_print_statistics_pairs(mc_stats_pair);
339 if((_sg_mc_dot_output_file != NULL) && (_sg_mc_dot_output_file[0]!='\0')){
340 fprintf(dot_output, "}\n");
350 int SIMIX_pre_mc_random(smx_simcall_t simcall){
352 return simcall->mc_value;
358 /*FIXME: return mc_current_state->executed_transition->random.value;*/
359 return simcall_mc_random();
363 * \brief Schedules all the process that are ready to run
365 void MC_wait_for_requests(void)
367 smx_process_t process;
371 while (!xbt_dynar_is_empty(simix_global->process_to_run)) {
372 SIMIX_process_runall();
373 xbt_dynar_foreach(simix_global->process_that_ran, iter, process) {
374 req = &process->simcall;
375 if (req->call != SIMCALL_NONE && !MC_request_is_visible(req))
376 SIMIX_simcall_pre(req, 0);
381 int MC_deadlock_check()
383 int deadlock = FALSE;
384 smx_process_t process;
385 if(xbt_swag_size(simix_global->process_list)){
387 xbt_swag_foreach(process, simix_global->process_list){
388 if(process->simcall.call != SIMCALL_NONE
389 && MC_request_is_enabled(&process->simcall)){
399 * \brief Re-executes from the state at position start all the transitions indicated by
400 * a given model-checker stack.
401 * \param stack The stack with the transitions to execute.
402 * \param start Start index to begin the re-execution.
404 void MC_replay(xbt_fifo_t stack, int start)
406 int raw_mem = (mmalloc_get_current_heap() == raw_heap);
410 smx_simcall_t req = NULL, saved_req = NULL;
411 xbt_fifo_item_t item, start_item;
414 XBT_DEBUG("**** Begin Replay ****");
417 /* Restore the initial state */
418 MC_restore_snapshot(initial_state_safety->snapshot);
419 /* At the moment of taking the snapshot the raw heap was set, so restoring
420 * it will set it back again, we have to unset it to continue */
424 start_item = xbt_fifo_get_last_item(stack);
427 start_item = xbt_fifo_get_prev_item(start_item);
432 /* Traverse the stack from the state at position start and re-execute the transitions */
433 for (item = start_item;
434 item != xbt_fifo_get_first_item(stack);
435 item = xbt_fifo_get_prev_item(item)) {
437 state = (mc_state_t) xbt_fifo_get_item_content(item);
438 saved_req = MC_state_get_executed_request(state, &value);
441 /* because we got a copy of the executed request, we have to fetch the
442 real one, pointed by the request field of the issuer process */
443 req = &saved_req->issuer->simcall;
445 /* Debug information */
446 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
447 req_str = MC_request_to_string(req, value);
448 XBT_DEBUG("Replay: %s (%p)", req_str, state);
453 SIMIX_simcall_pre(req, value);
454 MC_wait_for_requests();
456 /* Update statistics */
457 mc_stats->visited_states++;
458 mc_stats->executed_transitions++;
460 XBT_DEBUG("**** End Replay ****");
470 void MC_replay_liveness(xbt_fifo_t stack, int all_stack)
473 initial_state_liveness->raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
477 smx_simcall_t req = NULL, saved_req = NULL;
478 xbt_fifo_item_t item;
480 mc_pair_stateless_t pair;
483 XBT_DEBUG("**** Begin Replay ****");
485 /* Restore the initial state */
486 MC_restore_snapshot(initial_state_liveness->snapshot);
488 /* At the moment of taking the snapshot the raw heap was set, so restoring
489 * it will set it back again, we have to unset it to continue */
490 if(!initial_state_liveness->raw_mem_set)
495 item = xbt_fifo_get_last_item(stack);
497 while(depth <= xbt_fifo_size(stack)){
499 pair = (mc_pair_stateless_t) xbt_fifo_get_item_content(item);
500 state = (mc_state_t) pair->graph_state;
502 if(pair->requests > 0){
504 saved_req = MC_state_get_executed_request(state, &value);
505 //XBT_DEBUG("SavedReq->call %u", saved_req->call);
507 if(saved_req != NULL){
508 /* because we got a copy of the executed request, we have to fetch the
509 real one, pointed by the request field of the issuer process */
510 req = &saved_req->issuer->simcall;
511 //XBT_DEBUG("Req->call %u", req->call);
513 /* Debug information */
514 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
515 req_str = MC_request_to_string(req, value);
516 XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
522 SIMIX_simcall_pre(req, value);
523 MC_wait_for_requests();
528 /* Update statistics */
529 mc_stats_pair->visited_pairs++;
531 item = xbt_fifo_get_prev_item(item);
536 /* Traverse the stack from the initial state and re-execute the transitions */
537 for (item = xbt_fifo_get_last_item(stack);
538 item != xbt_fifo_get_first_item(stack);
539 item = xbt_fifo_get_prev_item(item)) {
541 pair = (mc_pair_stateless_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_pair->visited_pairs++;
575 XBT_DEBUG("**** End Replay ****");
577 if(initial_state_liveness->raw_mem_set)
585 * \brief Dumps the contents of a model-checker's stack and shows the actual
587 * \param stack The stack to dump
589 void MC_dump_stack_safety(xbt_fifo_t stack)
592 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
594 MC_show_stack_safety(stack);
596 if(!_sg_mc_checkpoint){
601 while ((state = (mc_state_t) xbt_fifo_pop(stack)) != NULL)
602 MC_state_delete(state);
615 void MC_show_stack_safety(xbt_fifo_t stack)
619 xbt_fifo_item_t item;
621 char *req_str = NULL;
623 for (item = xbt_fifo_get_last_item(stack);
624 (item ? (state = (mc_state_t) (xbt_fifo_get_item_content(item)))
625 : (NULL)); item = xbt_fifo_get_prev_item(item)) {
626 req = MC_state_get_executed_request(state, &value);
628 req_str = MC_request_to_string(req, value);
629 XBT_INFO("%s", req_str);
635 void MC_show_deadlock(smx_simcall_t req)
637 /*char *req_str = NULL;*/
638 XBT_INFO("**************************");
639 XBT_INFO("*** DEAD-LOCK DETECTED ***");
640 XBT_INFO("**************************");
641 XBT_INFO("Locked request:");
642 /*req_str = MC_request_to_string(req);
643 XBT_INFO("%s", req_str);
645 XBT_INFO("Counter-example execution trace:");
646 MC_dump_stack_safety(mc_stack_safety);
650 void MC_show_stack_liveness(xbt_fifo_t stack){
652 mc_pair_stateless_t pair;
653 xbt_fifo_item_t item;
655 char *req_str = NULL;
657 for (item = xbt_fifo_get_last_item(stack);
658 (item ? (pair = (mc_pair_stateless_t) (xbt_fifo_get_item_content(item)))
659 : (NULL)); item = xbt_fifo_get_prev_item(item)) {
660 req = MC_state_get_executed_request(pair->graph_state, &value);
662 if(pair->requests>0){
663 req_str = MC_request_to_string(req, value);
664 XBT_INFO("%s", req_str);
667 XBT_INFO("End of system requests but evolution in Büchi automaton");
673 void MC_dump_stack_liveness(xbt_fifo_t stack){
675 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
677 mc_pair_stateless_t pair;
680 while ((pair = (mc_pair_stateless_t) xbt_fifo_pop(stack)) != NULL)
681 pair_stateless_free(pair);
690 void MC_print_statistics(mc_stats_t stats)
692 //XBT_INFO("State space size ~= %lu", stats->state_size);
693 XBT_INFO("Expanded states = %lu", stats->expanded_states);
694 XBT_INFO("Visited states = %lu", stats->visited_states);
695 XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
696 XBT_INFO("Expanded / Visited = %lf",
697 (double) stats->visited_states / stats->expanded_states);
698 /*XBT_INFO("Exploration coverage = %lf",
699 (double)stats->expanded_states / stats->state_size); */
702 void MC_print_statistics_pairs(mc_stats_pair_t stats)
704 XBT_INFO("Expanded pairs = %lu", stats->expanded_pairs);
705 XBT_INFO("Visited pairs = %lu", stats->visited_pairs);
706 //XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
707 XBT_INFO("Expanded / Visited = %lf",
708 (double) stats->visited_pairs / stats->expanded_pairs);
710 if(mmalloc_get_current_heap() == raw_heap)
714 void MC_assert(int prop)
716 if (MC_is_active() && !prop){
717 XBT_INFO("**************************");
718 XBT_INFO("*** PROPERTY NOT VALID ***");
719 XBT_INFO("**************************");
720 XBT_INFO("Counter-example execution trace:");
721 MC_dump_stack_safety(mc_stack_safety);
722 MC_print_statistics(mc_stats);
727 static void MC_assert_pair(int prop){
728 if (MC_is_active() && !prop) {
729 XBT_INFO("**************************");
730 XBT_INFO("*** PROPERTY NOT VALID ***");
731 XBT_INFO("**************************");
732 //XBT_INFO("Counter-example execution trace:");
733 MC_show_stack_liveness(mc_stack_liveness);
734 //MC_dump_snapshot_stack(mc_snapshot_stack);
735 MC_print_statistics_pairs(mc_stats_pair);
740 void MC_process_clock_add(smx_process_t process, double amount)
742 mc_time[process->pid] += amount;
745 double MC_process_clock_get(smx_process_t process)
749 return mc_time[process->pid];
757 void MC_automaton_load(const char *file){
759 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
763 if (_mc_property_automaton == NULL)
764 _mc_property_automaton = xbt_automaton_new();
766 xbt_automaton_load(_mc_property_automaton,file);
775 void MC_automaton_new_propositional_symbol(const char* id, void* fct) {
777 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
781 if (_mc_property_automaton == NULL)
782 _mc_property_automaton = xbt_automaton_new();
784 xbt_new_propositional_symbol(_mc_property_automaton,id,fct);
793 /************ MC_ignore ***********/
795 void heap_ignore_region_free(mc_heap_ignore_region_t r){
799 void heap_ignore_region_free_voidp(void *r){
800 heap_ignore_region_free((mc_heap_ignore_region_t) * (void **) r);
803 void MC_ignore_heap(void *address, size_t size){
805 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
809 mc_heap_ignore_region_t region = NULL;
810 region = xbt_new0(s_mc_heap_ignore_region_t, 1);
811 region->address = address;
814 region->block = ((char*)address - (char*)((xbt_mheap_t)std_heap)->heapbase) / BLOCKSIZE + 1;
816 if(((xbt_mheap_t)std_heap)->heapinfo[region->block].type == 0){
817 region->fragment = -1;
818 ((xbt_mheap_t)std_heap)->heapinfo[region->block].busy_block.ignore = 1;
820 region->fragment = ((uintptr_t) (ADDR2UINT (address) % (BLOCKSIZE))) >> ((xbt_mheap_t)std_heap)->heapinfo[region->block].type;
821 ((xbt_mheap_t)std_heap)->heapinfo[region->block].busy_frag.ignore[region->fragment] = 1;
824 if(mc_heap_comparison_ignore == NULL){
825 mc_heap_comparison_ignore = xbt_dynar_new(sizeof(mc_heap_ignore_region_t), heap_ignore_region_free_voidp);
826 xbt_dynar_push(mc_heap_comparison_ignore, ®ion);
832 unsigned int cursor = 0;
833 mc_heap_ignore_region_t current_region;
835 int end = xbt_dynar_length(mc_heap_comparison_ignore) - 1;
838 cursor = (start + end) / 2;
839 current_region = (mc_heap_ignore_region_t)xbt_dynar_get_as(mc_heap_comparison_ignore, cursor, mc_heap_ignore_region_t);
840 if(current_region->address == address){
841 heap_ignore_region_free(region);
846 if(current_region->address < address)
848 if(current_region->address > address)
852 if(current_region->address < address)
853 xbt_dynar_insert_at(mc_heap_comparison_ignore, cursor + 1, ®ion);
855 xbt_dynar_insert_at(mc_heap_comparison_ignore, cursor, ®ion);
863 void MC_remove_ignore_heap(void *address, size_t size){
865 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
869 unsigned int cursor = 0;
871 int end = xbt_dynar_length(mc_heap_comparison_ignore) - 1;
872 mc_heap_ignore_region_t region;
873 int ignore_found = 0;
876 cursor = (start + end) / 2;
877 region = (mc_heap_ignore_region_t)xbt_dynar_get_as(mc_heap_comparison_ignore, cursor, mc_heap_ignore_region_t);
878 if(region->address == address){
882 if(region->address < address)
884 if(region->address > address){
885 if((char * )region->address <= ((char *)address + size)){
893 if(ignore_found == 1){
894 xbt_dynar_remove_at(mc_heap_comparison_ignore, cursor, NULL);
895 MC_remove_ignore_heap(address, size);
905 void MC_ignore_data_bss(void *address, size_t size){
907 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
911 if(mc_data_bss_comparison_ignore == NULL)
912 mc_data_bss_comparison_ignore = xbt_dynar_new(sizeof(mc_data_bss_ignore_variable_t), NULL);
914 mc_data_bss_ignore_variable_t var = NULL;
915 var = xbt_new0(s_mc_data_bss_ignore_variable_t, 1);
916 var->address = address;
919 if(xbt_dynar_is_empty(mc_data_bss_comparison_ignore)){
921 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, 0, &var);
925 unsigned int cursor = 0;
927 int end = xbt_dynar_length(mc_data_bss_comparison_ignore) - 1;
928 mc_data_bss_ignore_variable_t current_var = NULL;
931 cursor = (start + end) / 2;
932 current_var = (mc_data_bss_ignore_variable_t)xbt_dynar_get_as(mc_data_bss_comparison_ignore, cursor, mc_data_bss_ignore_variable_t);
933 if(current_var->address == address){
939 if(current_var->address < address)
941 if(current_var->address > address)
945 if(current_var->address < address)
946 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, cursor + 1, &var);
948 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, cursor, &var);
952 /* Remove variable from mc_global_variables */
954 if(mc_global_variables != NULL){
956 unsigned int cursor = 0;
958 int end = xbt_dynar_length(mc_global_variables) - 1;
959 global_variable_t current_var;
963 cursor = (start + end) / 2;
964 current_var = (global_variable_t)xbt_dynar_get_as(mc_global_variables, cursor, global_variable_t);
965 if(current_var->address == var->address){
969 if(current_var->address < address)
971 if(current_var->address > address)
976 xbt_dynar_remove_at(mc_global_variables, cursor, NULL);
986 static size_t data_bss_ignore_size(void *address){
987 unsigned int cursor = 0;
989 int end = xbt_dynar_length(mc_data_bss_comparison_ignore) - 1;
990 mc_data_bss_ignore_variable_t var;
993 cursor = (start + end) / 2;
994 var = (mc_data_bss_ignore_variable_t)xbt_dynar_get_as(mc_data_bss_comparison_ignore, cursor, mc_data_bss_ignore_variable_t);
995 if(var->address == address)
997 if(var->address < address){
998 if((void *)((char *)var->address + var->size) > address)
999 return (char *)var->address + var->size - (char*)address;
1003 if(var->address > address)
1012 void MC_ignore_stack(const char *var_name, const char *frame_name){
1014 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
1018 if(mc_stack_comparison_ignore == NULL)
1019 mc_stack_comparison_ignore = xbt_dynar_new(sizeof(mc_stack_ignore_variable_t), NULL);
1021 if(xbt_dynar_is_empty(mc_stack_comparison_ignore)){
1023 mc_stack_ignore_variable_t var = NULL;
1024 var = xbt_new0(s_mc_stack_ignore_variable_t, 1);
1025 var->var_name = strdup(var_name);
1026 var->frame = strdup(frame_name);
1028 xbt_dynar_insert_at(mc_stack_comparison_ignore, 0, &var);
1032 unsigned int cursor = 0;
1034 int end = xbt_dynar_length(mc_stack_comparison_ignore) - 1;
1035 mc_stack_ignore_variable_t current_var = NULL;
1037 while(start <= end){
1038 cursor = (start + end) / 2;
1039 current_var = (mc_stack_ignore_variable_t)xbt_dynar_get_as(mc_stack_comparison_ignore, cursor, mc_stack_ignore_variable_t);
1040 if(strcmp(current_var->frame, frame_name) == 0){
1041 if(strcmp(current_var->var_name, var_name) == 0){
1047 if(strcmp(current_var->var_name, var_name) < 0)
1049 if(strcmp(current_var->var_name, var_name) > 0)
1052 if(strcmp(current_var->frame, frame_name) < 0)
1054 if(strcmp(current_var->frame, frame_name) > 0)
1058 mc_stack_ignore_variable_t var = NULL;
1059 var = xbt_new0(s_mc_stack_ignore_variable_t, 1);
1060 var->var_name = strdup(var_name);
1061 var->frame = strdup(frame_name);
1063 if(strcmp(current_var->frame, frame_name) < 0)
1064 xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor + 1, &var);
1066 xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor, &var);
1070 /* Remove variable from mc_local_variables */
1072 if(mc_local_variables != NULL){
1074 if(strcmp(frame_name, "*") != 0){
1075 dw_frame_t frame = xbt_dict_get_or_null(mc_local_variables, frame_name);
1077 xbt_dict_remove(frame->variables, var_name);
1089 void MC_new_stack_area(void *stack, char *name, void* context, size_t size){
1091 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
1094 if(stacks_areas == NULL)
1095 stacks_areas = xbt_dynar_new(sizeof(stack_region_t), NULL);
1097 stack_region_t region = NULL;
1098 region = xbt_new0(s_stack_region_t, 1);
1099 region->address = stack;
1100 region->process_name = strdup(name);
1101 region->context = context;
1102 region->size = size;
1103 region->block = ((char*)stack - (char*)((xbt_mheap_t)std_heap)->heapbase) / BLOCKSIZE + 1;
1104 xbt_dynar_push(stacks_areas, ®ion);
1112 /************ DWARF ***********/
1114 xbt_dict_t MC_get_location_list(const char *elf_file){
1116 char *command = bprintf("objdump -Wo %s", elf_file);
1118 FILE *fp = popen(command, "r");
1121 perror("popen for objdump failed");
1125 int debug = 0; /*Detect if the program has been compiled with -g */
1127 xbt_dict_t location_list = xbt_dict_new_homogeneous(NULL);
1128 char *line = NULL, *loc_expr = NULL;
1132 xbt_dynar_t split = NULL;
1134 while ((read = xbt_getline(&line, &n, fp)) != -1) {
1136 /* Wipeout the new line character */
1137 line[read - 1] = '\0';
1139 xbt_str_trim(line, NULL);
1144 if(strlen(line) == 0)
1149 if(strncmp(line, elf_file, strlen(elf_file)) == 0)
1152 if(strncmp(line, "Contents", 8) == 0)
1155 if(strncmp(line, "Offset", 6) == 0){
1162 XBT_INFO("Your program must be compiled with -g");
1166 xbt_dynar_t loclist = xbt_dynar_new(sizeof(dw_location_entry_t), NULL);
1168 xbt_str_strip_spaces(line);
1169 split = xbt_str_split(line, " ");
1171 while(read != -1 && strcmp("<End", (char *)xbt_dynar_get_as(split, 1, char *)) != 0){
1173 dw_location_entry_t new_entry = xbt_new0(s_dw_location_entry_t, 1);
1174 new_entry->lowpc = strtoul((char *)xbt_dynar_get_as(split, 1, char *), NULL, 16);
1175 new_entry->highpc = strtoul((char *)xbt_dynar_get_as(split, 2, char *), NULL, 16);
1178 while(cursor_remove < 3){
1179 xbt_dynar_remove_at(split, 0, NULL);
1183 loc_expr = xbt_str_join(split, " ");
1184 xbt_str_ltrim(loc_expr, "(");
1185 xbt_str_rtrim(loc_expr, ")");
1186 new_entry->location = get_location(NULL, loc_expr);
1188 xbt_dynar_push(loclist, &new_entry);
1190 xbt_dynar_free(&split);
1193 read = xbt_getline(&line, &n, fp);
1195 line[read - 1] = '\0';
1196 xbt_str_strip_spaces(line);
1197 split = xbt_str_split(line, " ");
1203 char *key = bprintf("%d", (int)strtoul((char *)xbt_dynar_get_as(split, 0, char *), NULL, 16));
1204 xbt_dict_set(location_list, key, loclist, NULL);
1207 xbt_dynar_free(&split);
1215 return location_list;
1218 static dw_frame_t get_frame_by_offset(xbt_dict_t all_variables, unsigned long int offset){
1220 xbt_dict_cursor_t cursor = NULL;
1224 xbt_dict_foreach(all_variables, cursor, name, res) {
1225 if(offset >= res->start && offset < res->end){
1226 xbt_dict_cursor_free(&cursor);
1231 xbt_dict_cursor_free(&cursor);
1236 void MC_get_local_variables(const char *elf_file, xbt_dict_t location_list, xbt_dict_t *all_variables){
1238 char *command = bprintf("objdump -Wi %s", elf_file);
1240 FILE *fp = popen(command, "r");
1243 perror("popen for objdump failed");
1245 char *line = NULL, *origin, *abstract_origin, *current_frame = NULL;
1248 int valid_variable = 1;
1249 char *node_type = NULL, *location_type = NULL, *variable_name = NULL, *loc_expr = NULL;
1250 xbt_dynar_t split = NULL, split2 = NULL;
1252 xbt_dict_t variables_origin = xbt_dict_new_homogeneous(NULL);
1253 xbt_dict_t subprograms_origin = xbt_dict_new_homogeneous(NULL);
1254 char *subprogram_name = NULL, *subprogram_start = NULL, *subprogram_end = NULL;
1255 int new_frame = 0, new_variable = 0;
1256 dw_frame_t variable_frame, subroutine_frame = NULL;
1258 read = xbt_getline(&line, &n, fp);
1260 while (read != -1) {
1263 read = xbt_getline(&line, &n, fp);
1267 /* Wipeout the new line character */
1268 line[read - 1] = '\0';
1270 if(strlen(line) == 0){
1271 read = xbt_getline(&line, &n, fp);
1275 xbt_str_ltrim(line, NULL);
1276 xbt_str_strip_spaces(line);
1279 read = xbt_getline(&line, &n, fp);
1283 xbt_dynar_free(&split);
1284 split = xbt_str_split(line, " ");
1287 node_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1289 if(strcmp(node_type, "(DW_TAG_subprogram)") == 0){ /* New frame */
1291 dw_frame_t frame = NULL;
1293 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1294 subprogram_start = strdup(strtok(NULL, "<"));
1295 xbt_str_rtrim(subprogram_start, ">:");
1297 read = xbt_getline(&line, &n, fp);
1302 read = xbt_getline(&line, &n, fp);
1306 /* Wipeout the new line character */
1307 line[read - 1] = '\0';
1309 if(strlen(line) == 0){
1310 read = xbt_getline(&line, &n, fp);
1314 xbt_dynar_free(&split);
1315 xbt_str_rtrim(line, NULL);
1316 xbt_str_strip_spaces(line);
1317 split = xbt_str_split(line, " ");
1319 node_type = xbt_dynar_get_as(split, 1, char *);
1321 if(strncmp(node_type, "DW_AT_", 6) != 0)
1324 if(strcmp(node_type, "DW_AT_sibling") == 0){
1326 subprogram_end = strdup(xbt_dynar_get_as(split, 3, char*));
1327 xbt_str_ltrim(subprogram_end, "<0x");
1328 xbt_str_rtrim(subprogram_end, ">");
1330 }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){ /* Frame already in dict */
1333 abstract_origin = strdup(xbt_dynar_get_as(split, 2, char*));
1334 xbt_str_ltrim(abstract_origin, "<0x");
1335 xbt_str_rtrim(abstract_origin, ">");
1336 subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, abstract_origin);
1337 frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
1338 xbt_free(abstract_origin);
1340 }else if(strcmp(node_type, "DW_AT_name") == 0){
1343 xbt_free(current_frame);
1344 frame = xbt_new0(s_dw_frame_t, 1);
1345 frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1346 frame->variables = xbt_dict_new_homogeneous(NULL);
1347 frame->frame_base = xbt_new0(s_dw_location_t, 1);
1348 current_frame = strdup(frame->name);
1350 xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
1352 }else if(strcmp(node_type, "DW_AT_frame_base") == 0){
1354 location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1356 if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
1358 frame->frame_base = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
1362 xbt_str_strip_spaces(line);
1363 split2 = xbt_str_split(line, "(");
1364 xbt_dynar_remove_at(split2, 0, NULL);
1365 loc_expr = xbt_str_join(split2, " ");
1366 xbt_str_rtrim(loc_expr, ")");
1367 frame->frame_base = get_location(NULL, loc_expr);
1368 xbt_dynar_free(&split2);
1373 }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
1376 frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1378 }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
1381 frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1383 }else if(strcmp(node_type, "DW_AT_MIPS_linkage_name:") == 0){
1385 xbt_free(frame->name);
1386 xbt_free(current_frame);
1387 frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1388 current_frame = strdup(frame->name);
1389 xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
1393 read = xbt_getline(&line, &n, fp);
1398 frame->start = strtoul(subprogram_start, NULL, 16);
1399 if(subprogram_end != NULL)
1400 frame->end = strtoul(subprogram_end, NULL, 16);
1401 xbt_dict_set(*all_variables, frame->name, frame, NULL);
1404 xbt_free(subprogram_start);
1405 xbt_free(subprogram_end);
1406 subprogram_end = NULL;
1409 }else if(strcmp(node_type, "(DW_TAG_variable)") == 0){ /* New variable */
1411 dw_local_variable_t var = NULL;
1413 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1414 origin = strdup(strtok(NULL, "<"));
1415 xbt_str_rtrim(origin, ">:");
1417 read = xbt_getline(&line, &n, fp);
1422 read = xbt_getline(&line, &n, fp);
1426 /* Wipeout the new line character */
1427 line[read - 1] = '\0';
1429 if(strlen(line) == 0){
1430 read = xbt_getline(&line, &n, fp);
1434 xbt_dynar_free(&split);
1435 xbt_str_rtrim(line, NULL);
1436 xbt_str_strip_spaces(line);
1437 split = xbt_str_split(line, " ");
1439 node_type = xbt_dynar_get_as(split, 1, char *);
1441 if(strncmp(node_type, "DW_AT_", 6) != 0)
1444 if(strcmp(node_type, "DW_AT_name") == 0){
1447 var = xbt_new0(s_dw_local_variable_t, 1);
1448 var->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1450 xbt_dict_set(variables_origin, origin, var->name, NULL);
1452 }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
1455 abstract_origin = xbt_dynar_get_as(split, 2, char *);
1456 xbt_str_ltrim(abstract_origin, "<0x");
1457 xbt_str_rtrim(abstract_origin, ">");
1459 variable_name = (char *)xbt_dict_get_or_null(variables_origin, abstract_origin);
1460 variable_frame = get_frame_by_offset(*all_variables, strtoul(abstract_origin, NULL, 16));
1461 var = xbt_dict_get_or_null(variable_frame->variables, variable_name);
1463 }else if(strcmp(node_type, "DW_AT_location") == 0){
1465 if(valid_variable == 1 && var != NULL){
1467 var->location = xbt_new0(s_dw_location_t, 1);
1469 location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1471 if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
1473 var->location = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
1477 xbt_str_strip_spaces(line);
1478 split2 = xbt_str_split(line, "(");
1479 xbt_dynar_remove_at(split2, 0, NULL);
1480 loc_expr = xbt_str_join(split2, " ");
1481 xbt_str_rtrim(loc_expr, ")");
1482 var->location = get_location(NULL, loc_expr);
1483 xbt_dynar_free(&split2);
1490 }else if(strcmp(node_type, "DW_AT_external") == 0){
1496 read = xbt_getline(&line, &n, fp);
1500 if(new_variable == 1 && valid_variable == 1){
1502 variable_frame = xbt_dict_get_or_null(*all_variables, current_frame);
1503 xbt_dict_set(variable_frame->variables, var->name, var, NULL);
1509 }else if(strcmp(node_type, "(DW_TAG_inlined_subroutine)") == 0){
1511 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1512 origin = strdup(strtok(NULL, "<"));
1513 xbt_str_rtrim(origin, ">:");
1515 read = xbt_getline(&line, &n, fp);
1519 /* Wipeout the new line character */
1520 line[read - 1] = '\0';
1523 read = xbt_getline(&line, &n, fp);
1527 if(strlen(line) == 0){
1528 read = xbt_getline(&line, &n, fp);
1532 xbt_dynar_free(&split);
1533 xbt_str_rtrim(line, NULL);
1534 xbt_str_strip_spaces(line);
1535 split = xbt_str_split(line, " ");
1537 if(strncmp(xbt_dynar_get_as(split, 1, char *), "DW_AT_", 6) != 0)
1540 node_type = xbt_dynar_get_as(split, 1, char *);
1542 if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
1544 origin = xbt_dynar_get_as(split, 2, char *);
1545 xbt_str_ltrim(origin, "<0x");
1546 xbt_str_rtrim(origin, ">");
1548 subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, origin);
1549 subroutine_frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
1551 }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
1553 subroutine_frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1555 }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
1557 subroutine_frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1560 read = xbt_getline(&line, &n, fp);
1566 read = xbt_getline(&line, &n, fp);
1572 xbt_dynar_free(&split);
1579 static dw_location_t get_location(xbt_dict_t location_list, char *expr){
1581 dw_location_t loc = xbt_new0(s_dw_location_t, 1);
1583 if(location_list != NULL){
1585 char *key = bprintf("%d", (int)strtoul(expr, NULL, 16));
1586 loc->type = e_dw_loclist;
1587 loc->location.loclist = (xbt_dynar_t)xbt_dict_get_or_null(location_list, key);
1588 if(loc->location.loclist == NULL)
1589 XBT_INFO("Key not found in loclist");
1596 char *tok = NULL, *tok2 = NULL;
1598 xbt_dynar_t tokens1 = xbt_str_split(expr, ";");
1599 xbt_dynar_t tokens2;
1601 loc->type = e_dw_compose;
1602 loc->location.compose = xbt_dynar_new(sizeof(dw_location_t), NULL);
1604 while(cursor < xbt_dynar_length(tokens1)){
1606 tok = xbt_dynar_get_as(tokens1, cursor, char*);
1607 tokens2 = xbt_str_split(tok, " ");
1608 tok2 = xbt_dynar_get_as(tokens2, 0, char*);
1610 if(strncmp(tok2, "DW_OP_reg", 9) == 0){
1611 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1612 new_element->type = e_dw_register;
1613 new_element->location.reg = atoi(strtok(tok2, "DW_OP_reg"));
1614 xbt_dynar_push(loc->location.compose, &new_element);
1615 }else if(strcmp(tok2, "DW_OP_fbreg:") == 0){
1616 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1617 new_element->type = e_dw_fbregister_op;
1618 new_element->location.fbreg_op = atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*));
1619 xbt_dynar_push(loc->location.compose, &new_element);
1620 }else if(strncmp(tok2, "DW_OP_breg", 10) == 0){
1621 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1622 new_element->type = e_dw_bregister_op;
1623 new_element->location.breg_op.reg = atoi(strtok(tok2, "DW_OP_breg"));
1624 new_element->location.breg_op.offset = atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*));
1625 xbt_dynar_push(loc->location.compose, &new_element);
1626 }else if(strncmp(tok2, "DW_OP_lit", 9) == 0){
1627 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1628 new_element->type = e_dw_lit;
1629 new_element->location.lit = atoi(strtok(tok2, "DW_OP_lit"));
1630 xbt_dynar_push(loc->location.compose, &new_element);
1631 }else if(strcmp(tok2, "DW_OP_piece:") == 0){
1632 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1633 new_element->type = e_dw_piece;
1634 new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*));
1635 /*if(strlen(xbt_dynar_get_as(tokens2, 1, char*)) > 1)
1636 new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1638 new_element->location.piece = xbt_dynar_get_as(tokens2, 1, char*)[0] - '0';*/
1639 xbt_dynar_push(loc->location.compose, &new_element);
1640 }else if(strcmp(tok2, "DW_OP_plus_uconst:") == 0){
1641 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1642 new_element->type = e_dw_plus_uconst;
1643 new_element->location.plus_uconst = atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char *));
1644 xbt_dynar_push(loc->location.compose, &new_element);
1645 }else if(strcmp(tok, "DW_OP_abs") == 0 ||
1646 strcmp(tok, "DW_OP_and") == 0 ||
1647 strcmp(tok, "DW_OP_div") == 0 ||
1648 strcmp(tok, "DW_OP_minus") == 0 ||
1649 strcmp(tok, "DW_OP_mod") == 0 ||
1650 strcmp(tok, "DW_OP_mul") == 0 ||
1651 strcmp(tok, "DW_OP_neg") == 0 ||
1652 strcmp(tok, "DW_OP_not") == 0 ||
1653 strcmp(tok, "DW_OP_or") == 0 ||
1654 strcmp(tok, "DW_OP_plus") == 0){
1655 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1656 new_element->type = e_dw_arithmetic;
1657 new_element->location.arithmetic = strdup(strtok(tok2, "DW_OP_"));
1658 xbt_dynar_push(loc->location.compose, &new_element);
1659 }else if(strcmp(tok, "DW_OP_stack_value") == 0){
1660 }else if(strcmp(tok2, "DW_OP_deref_size:") == 0){
1661 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1662 new_element->type = e_dw_deref;
1663 new_element->location.deref_size = (unsigned int short) atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*));
1664 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1665 new_element->location.deref_size = atoi(xbt_dynar_get_as(tokens, cursor, char*));
1667 new_element->location.deref_size = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
1668 xbt_dynar_push(loc->location.compose, &new_element);
1669 }else if(strcmp(tok, "DW_OP_deref") == 0){
1670 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1671 new_element->type = e_dw_deref;
1672 new_element->location.deref_size = sizeof(void *);
1673 xbt_dynar_push(loc->location.compose, &new_element);
1674 }else if(strcmp(tok2, "DW_OP_constu:") == 0){
1675 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1676 new_element->type = e_dw_uconstant;
1677 new_element->location.uconstant.bytes = 1;
1678 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*)));
1679 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1680 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens, cursor, char*)));
1682 new_element->location.uconstant.value = (unsigned long int)(xbt_dynar_get_as(tokens, cursor, char*)[0] - '0');*/
1683 xbt_dynar_push(loc->location.compose, &new_element);
1684 }else if(strcmp(tok2, "DW_OP_consts:") == 0){
1685 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1686 new_element->type = e_dw_sconstant;
1687 new_element->location.sconstant.bytes = 1;
1688 new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*)));
1689 xbt_dynar_push(loc->location.compose, &new_element);
1690 }else if(strcmp(tok2, "DW_OP_const1u:") == 0 ||
1691 strcmp(tok2, "DW_OP_const2u:") == 0 ||
1692 strcmp(tok2, "DW_OP_const4u:") == 0 ||
1693 strcmp(tok2, "DW_OP_const8u:") == 0){
1694 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1695 new_element->type = e_dw_uconstant;
1696 new_element->location.uconstant.bytes = tok2[11] - '0';
1697 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*)));
1698 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1699 new_element->location.constant.value = atoi(xbt_dynar_get_as(tokens, cursor, char*));
1701 new_element->location.constant.value = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
1702 xbt_dynar_push(loc->location.compose, &new_element);
1703 }else if(strcmp(tok, "DW_OP_const1s") == 0 ||
1704 strcmp(tok, "DW_OP_const2s") == 0 ||
1705 strcmp(tok, "DW_OP_const4s") == 0 ||
1706 strcmp(tok, "DW_OP_const8s") == 0){
1707 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1708 new_element->type = e_dw_sconstant;
1709 new_element->location.sconstant.bytes = tok2[11] - '0';
1710 new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*)));
1711 xbt_dynar_push(loc->location.compose, &new_element);
1713 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1714 new_element->type = e_dw_unsupported;
1715 xbt_dynar_push(loc->location.compose, &new_element);
1719 xbt_dynar_free(&tokens2);
1723 xbt_dynar_free(&tokens1);
1732 void print_local_variables(xbt_dict_t list){
1734 dw_location_entry_t entry;
1735 dw_location_t location_entry;
1736 unsigned int cursor3 = 0, cursor4 = 0;
1737 xbt_dict_cursor_t cursor = 0, cursor2 = 0;
1739 char *frame_name, *variable_name;
1740 dw_frame_t current_frame;
1741 dw_local_variable_t current_variable;
1743 xbt_dict_foreach(list, cursor, frame_name, current_frame){
1744 fprintf(stderr, "Frame name : %s\n", current_frame->name);
1745 fprintf(stderr, "Location type : %d\n", current_frame->frame_base->type);
1746 xbt_dict_foreach((xbt_dict_t)current_frame->variables, cursor2, variable_name, current_variable){
1747 fprintf(stderr, "Name : %s\n", current_variable->name);
1748 if(current_variable->location == NULL)
1750 fprintf(stderr, "Location type : %d\n", current_variable->location->type);
1751 switch(current_variable->location->type){
1753 xbt_dynar_foreach(current_variable->location->location.loclist, cursor3, entry){
1754 fprintf(stderr, "Lowpc : %lx, Highpc : %lx,", entry->lowpc, entry->highpc);
1755 switch(entry->location->type){
1756 case e_dw_register :
1757 fprintf(stderr, " Location : in register %d\n", entry->location->location.reg);
1759 case e_dw_bregister_op:
1760 fprintf(stderr, " Location : Add %d to the value in register %d\n", entry->location->location.breg_op.offset, entry->location->location.breg_op.reg);
1763 fprintf(stderr, "Value already kwnown : %d\n", entry->location->location.lit);
1765 case e_dw_fbregister_op:
1766 fprintf(stderr, " Location : %d bytes from logical frame pointer\n", entry->location->location.fbreg_op);
1769 fprintf(stderr, " Location :\n");
1770 xbt_dynar_foreach(entry->location->location.compose, cursor4, location_entry){
1771 switch(location_entry->type){
1772 case e_dw_register :
1773 fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
1775 case e_dw_bregister_op:
1776 fprintf(stderr, " %d) add %d to the value in register %d\n", cursor4 + 1, location_entry->location.breg_op.offset, location_entry->location.breg_op.reg);
1779 fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
1781 case e_dw_fbregister_op:
1782 fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
1785 fprintf(stderr, " %d) Pop the stack entry and treats it as an address (size of data %d)\n", cursor4 + 1, location_entry->location.deref_size);
1787 case e_dw_arithmetic :
1788 fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
1791 fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
1793 case e_dw_uconstant :
1794 fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
1796 case e_dw_sconstant :
1797 fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
1800 fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
1806 fprintf(stderr, "Location type not supported\n");
1813 fprintf(stderr, "Location :\n");
1814 xbt_dynar_foreach(current_variable->location->location.compose, cursor4, location_entry){
1815 switch(location_entry->type){
1816 case e_dw_register :
1817 fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
1819 case e_dw_bregister_op:
1820 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);
1823 fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
1825 case e_dw_fbregister_op:
1826 fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
1829 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);
1831 case e_dw_arithmetic :
1832 fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
1835 fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
1837 case e_dw_uconstant :
1838 fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
1840 case e_dw_sconstant :
1841 fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
1844 fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
1850 fprintf(stderr, "Location type not supported\n");
1858 static void MC_get_global_variables(char *elf_file){
1862 char *command = bprintf("objdump -t -j .data -j .bss %s", elf_file);
1864 fp = popen(command, "r");
1867 perror("popen failed");
1871 if(mc_global_variables == NULL)
1872 mc_global_variables = xbt_dynar_new(sizeof(global_variable_t), global_variable_free_voidp);
1878 xbt_dynar_t line_tokens = NULL;
1879 unsigned long offset;
1881 int type = strcmp(elf_file, xbt_binary_name); /* 0 = binary, other = libsimgrid */
1883 while ((read = xbt_getline(&line, &n, fp)) != -1){
1888 /* Wipeout the new line character */
1889 line[read - 1] = '\0';
1891 xbt_str_strip_spaces(line);
1892 xbt_str_ltrim(line, NULL);
1894 line_tokens = xbt_str_split(line, NULL);
1896 if(xbt_dynar_length(line_tokens) <= 4 || strcmp(xbt_dynar_get_as(line_tokens, 0, char *), "SYMBOL") == 0)
1899 if((strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "__gcov", 6) == 0)
1900 || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "gcov", 4) == 0)
1901 || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), ".data") == 0)
1902 || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), ".bss") == 0)
1903 || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "stderr", 6) == 0)
1904 || ((size_t)strtoul(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 2, char*), NULL, 16) == 0))
1907 global_variable_t var = xbt_new0(s_global_variable_t, 1);
1910 var->address = (void *)strtoul(xbt_dynar_get_as(line_tokens, 0, char*), NULL, 16);
1912 offset = strtoul(xbt_dynar_get_as(line_tokens, 0, char*), NULL, 16);
1913 var->address = (char *)start_text_libsimgrid+offset;
1916 var->size = (size_t)strtoul(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 2, char*), NULL, 16);
1917 var->name = strdup(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*));
1919 if(data_bss_ignore_size(var->address) > 0){
1920 global_variable_free(var);
1922 if(xbt_dynar_is_empty(mc_global_variables)){
1923 xbt_dynar_push(mc_global_variables, &var);
1925 unsigned int cursor = 0;
1927 int end = xbt_dynar_length(mc_global_variables) - 1;
1928 global_variable_t current_var = NULL;
1930 while(start <= end){
1931 cursor = (start + end) / 2;
1932 current_var = (global_variable_t)xbt_dynar_get_as(mc_global_variables, cursor, global_variable_t);
1933 if(current_var->address == var->address)
1935 if(current_var->address < var->address)
1937 if(current_var->address > var->address)
1941 if(current_var->address < var->address)
1942 xbt_dynar_insert_at(mc_global_variables, cursor + 1, &var);
1944 xbt_dynar_insert_at(mc_global_variables, cursor, &var);
1948 xbt_dynar_free(&line_tokens);
1958 void global_variable_free(global_variable_t v){
1963 void global_variable_free_voidp(void *v){
1964 global_variable_free((global_variable_t) * (void **) v);