1 /* Copyright (c) 2008-2012 Da SimGrid Team. All rights reserved. */
3 /* This program is free software; you can redistribute it and/or modify it
4 * under the terms of the license (GNU LGPL) which comes with this package. */
11 #include "simgrid/sg_config.h"
12 #include "../surf/surf_private.h"
13 #include "../simix/smx_private.h"
14 #include "../xbt/mmalloc/mmprivate.h"
16 #include "mc_private.h"
17 #include "xbt/automaton.h"
20 XBT_LOG_NEW_CATEGORY(mc, "All MC categories");
21 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_global, mc,
22 "Logging specific to MC (global)");
24 /* Configuration support */
25 e_mc_reduce_t mc_reduce_kind=e_mc_reduce_unset;
27 int _sg_do_model_check = 0;
28 int _sg_mc_checkpoint=0;
29 char* _sg_mc_property_file=NULL;
31 int _sg_mc_max_depth=1000;
34 extern int _sg_init_status;
35 void _mc_cfg_cb_reduce(const char *name, int pos) {
36 if (_sg_init_status && !_sg_do_model_check) {
37 xbt_die("You are specifying a reduction strategy after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
39 char *val= xbt_cfg_get_string(_sg_cfg_set, name);
40 if (!strcasecmp(val,"none")) {
41 mc_reduce_kind = e_mc_reduce_none;
42 } else if (!strcasecmp(val,"dpor")) {
43 mc_reduce_kind = e_mc_reduce_dpor;
45 xbt_die("configuration option %s can only take 'none' or 'dpor' as a value",name);
49 void _mc_cfg_cb_checkpoint(const char *name, int pos) {
50 if (_sg_init_status && !_sg_do_model_check) {
51 xbt_die("You are specifying a checkpointing value after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
53 _sg_mc_checkpoint = xbt_cfg_get_int(_sg_cfg_set, name);
55 void _mc_cfg_cb_property(const char *name, int pos) {
56 if (_sg_init_status && !_sg_do_model_check) {
57 xbt_die("You are specifying a property after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
59 _sg_mc_property_file= xbt_cfg_get_string(_sg_cfg_set, name);
62 void _mc_cfg_cb_timeout(const char *name, int pos) {
63 if (_sg_init_status && !_sg_do_model_check) {
64 xbt_die("You are specifying a value to enable/disable timeout for wait requests after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
66 _sg_mc_timeout= xbt_cfg_get_int(_sg_cfg_set, name);
69 void _mc_cfg_cb_max_depth(const char *name, int pos) {
70 if (_sg_init_status && !_sg_do_model_check) {
71 xbt_die("You are specifying a max depth value after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
73 _sg_mc_max_depth= xbt_cfg_get_int(_sg_cfg_set, name);
76 void _mc_cfg_cb_visited(const char *name, int pos) {
77 if (_sg_init_status && !_sg_do_model_check) {
78 xbt_die("You are specifying a number of stored visited states after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
80 _sg_mc_visited= xbt_cfg_get_int(_sg_cfg_set, name);
84 /* MC global data structures */
86 mc_state_t mc_current_state = NULL;
87 char mc_replay_mode = FALSE;
88 double *mc_time = NULL;
89 mc_comparison_times_t mc_comp_times = NULL;
90 double mc_snapshot_comparison_time;
94 xbt_fifo_t mc_stack_safety = NULL;
95 mc_stats_t mc_stats = NULL;
96 mc_global_t initial_state_safety = NULL;
100 mc_stats_pair_t mc_stats_pair = NULL;
101 xbt_fifo_t mc_stack_liveness = NULL;
102 mc_global_t initial_state_liveness = NULL;
106 xbt_dict_t mc_local_variables = NULL;
108 xbt_dynar_t mc_global_variables = NULL;
110 /* Ignore mechanism */
111 xbt_dynar_t mc_stack_comparison_ignore;
112 xbt_dynar_t mc_data_bss_comparison_ignore;
113 extern xbt_dynar_t mc_heap_comparison_ignore;
114 extern xbt_dynar_t stacks_areas;
116 xbt_automaton_t _mc_property_automaton = NULL;
118 /* Static functions */
120 static void MC_assert_pair(int prop);
121 static dw_location_t get_location(xbt_dict_t location_list, char *expr);
122 static dw_frame_t get_frame_by_offset(xbt_dict_t all_variables, unsigned long int offset);
123 static size_t data_bss_ignore_size(void *address);
124 static void MC_get_global_variables(char *elf_file);
126 void MC_do_the_modelcheck_for_real() {
129 mc_comp_times = xbt_new0(s_mc_comparison_times_t, 1);
132 if (!_sg_mc_property_file || _sg_mc_property_file[0]=='\0') {
133 if (mc_reduce_kind==e_mc_reduce_unset)
134 mc_reduce_kind=e_mc_reduce_dpor;
136 XBT_INFO("Check a safety property");
137 MC_modelcheck_safety();
141 if (mc_reduce_kind==e_mc_reduce_unset)
142 mc_reduce_kind=e_mc_reduce_none;
144 XBT_INFO("Check the liveness property %s",_sg_mc_property_file);
145 MC_automaton_load(_sg_mc_property_file);
146 MC_modelcheck_liveness();
151 void MC_compare(void){
157 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
159 mc_time = xbt_new0(double, simix_process_maxpid);
161 /* mc_time refers to clock for each process -> ignore it for heap comparison */
163 for(i = 0; i<simix_process_maxpid; i++)
164 MC_ignore_heap(&(mc_time[i]), sizeof(double));
168 /* Initialize the data structures that must be persistent across every
169 iteration of the model-checker (in RAW memory) */
173 MC_init_memory_map_info();
175 mc_local_variables = xbt_dict_new_homogeneous(NULL);
177 /* Get local variables in binary for state equality detection */
178 xbt_dict_t binary_location_list = MC_get_location_list(xbt_binary_name);
179 MC_get_local_variables(xbt_binary_name, binary_location_list, &mc_local_variables);
181 /* Get local variables in libsimgrid for state equality detection */
182 xbt_dict_t libsimgrid_location_list = MC_get_location_list(libsimgrid_path);
183 MC_get_local_variables(libsimgrid_path, libsimgrid_location_list, &mc_local_variables);
185 xbt_dict_free(&libsimgrid_location_list);
186 xbt_dict_free(&binary_location_list);
188 /* Get .plt section (start and end addresses) for data libsimgrid and data program comparison */
189 get_libsimgrid_plt_section();
190 get_binary_plt_section();
192 MC_ignore_data_bss(&end_raw_heap, sizeof(end_raw_heap));
193 MC_ignore_data_bss(&mc_comp_times, sizeof(mc_comp_times));
194 MC_ignore_data_bss(&mc_snapshot_comparison_time, sizeof(mc_snapshot_comparison_time));
196 /* Get global variables */
197 MC_get_global_variables(xbt_binary_name);
198 MC_get_global_variables(libsimgrid_path);
202 /* Ignore some variables from xbt/ex.h used by exception e for stacks comparison */
203 MC_ignore_stack("e", "*");
204 MC_ignore_stack("__ex_cleanup", "*");
205 MC_ignore_stack("__ex_mctx_en", "*");
206 MC_ignore_stack("__ex_mctx_me", "*");
207 MC_ignore_stack("__xbt_ex_ctx_ptr", "*");
208 MC_ignore_stack("_log_ev", "*");
209 MC_ignore_stack("_throw_ctx", "*");
210 MC_ignore_stack("ctx", "*");
212 MC_ignore_stack("next_context", "smx_ctx_sysv_suspend_serial");
213 MC_ignore_stack("i", "smx_ctx_sysv_suspend_serial");
220 void MC_modelcheck_safety(void)
222 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
224 /* Check if MC is already initialized */
225 if (initial_state_safety)
228 mc_time = xbt_new0(double, simix_process_maxpid);
230 /* Initialize the data structures that must be persistent across every
231 iteration of the model-checker (in RAW memory) */
235 /* Initialize statistics */
236 mc_stats = xbt_new0(s_mc_stats_t, 1);
237 mc_stats->state_size = 1;
239 /* Create exploration stack */
240 mc_stack_safety = xbt_fifo_new();
244 if(_sg_mc_visited > 0){
248 MC_init_memory_map_info();
249 get_libsimgrid_plt_section();
250 get_binary_plt_section();
257 /* Save the initial state */
258 initial_state_safety = xbt_new0(s_mc_global_t, 1);
259 initial_state_safety->snapshot = MC_take_snapshot();
270 void MC_modelcheck_liveness(){
272 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
278 /* Initialize statistics */
279 mc_stats_pair = xbt_new0(s_mc_stats_pair_t, 1);
281 /* Create exploration stack */
282 mc_stack_liveness = xbt_fifo_new();
284 initial_state_liveness = xbt_new0(s_mc_global_t, 1);
291 MC_print_statistics_pairs(mc_stats_pair);
308 int MC_random(int min, int max)
310 /*FIXME: return mc_current_state->executed_transition->random.value;*/
315 * \brief Schedules all the process that are ready to run
317 void MC_wait_for_requests(void)
319 smx_process_t process;
323 while (!xbt_dynar_is_empty(simix_global->process_to_run)) {
324 SIMIX_process_runall();
325 xbt_dynar_foreach(simix_global->process_that_ran, iter, process) {
326 req = &process->simcall;
327 if (req->call != SIMCALL_NONE && !MC_request_is_visible(req))
328 SIMIX_simcall_pre(req, 0);
333 int MC_deadlock_check()
335 int deadlock = FALSE;
336 smx_process_t process;
337 if(xbt_swag_size(simix_global->process_list)){
339 xbt_swag_foreach(process, simix_global->process_list){
340 if(process->simcall.call != SIMCALL_NONE
341 && MC_request_is_enabled(&process->simcall)){
351 * \brief Re-executes from the state at position start all the transitions indicated by
352 * a given model-checker stack.
353 * \param stack The stack with the transitions to execute.
354 * \param start Start index to begin the re-execution.
356 void MC_replay(xbt_fifo_t stack, int start)
358 int raw_mem = (mmalloc_get_current_heap() == raw_heap);
362 smx_simcall_t req = NULL, saved_req = NULL;
363 xbt_fifo_item_t item, start_item;
366 XBT_DEBUG("**** Begin Replay ****");
369 /* Restore the initial state */
370 MC_restore_snapshot(initial_state_safety->snapshot);
371 /* At the moment of taking the snapshot the raw heap was set, so restoring
372 * it will set it back again, we have to unset it to continue */
376 start_item = xbt_fifo_get_last_item(stack);
379 start_item = xbt_fifo_get_prev_item(start_item);
384 /* Traverse the stack from the state at position start and re-execute the transitions */
385 for (item = start_item;
386 item != xbt_fifo_get_first_item(stack);
387 item = xbt_fifo_get_prev_item(item)) {
389 state = (mc_state_t) xbt_fifo_get_item_content(item);
390 saved_req = MC_state_get_executed_request(state, &value);
393 /* because we got a copy of the executed request, we have to fetch the
394 real one, pointed by the request field of the issuer process */
395 req = &saved_req->issuer->simcall;
397 /* Debug information */
398 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
399 req_str = MC_request_to_string(req, value);
400 XBT_DEBUG("Replay: %s (%p)", req_str, state);
405 SIMIX_simcall_pre(req, value);
406 MC_wait_for_requests();
408 /* Update statistics */
409 mc_stats->visited_states++;
410 mc_stats->executed_transitions++;
412 XBT_DEBUG("**** End Replay ****");
422 void MC_replay_liveness(xbt_fifo_t stack, int all_stack)
425 initial_state_liveness->raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
429 smx_simcall_t req = NULL, saved_req = NULL;
430 xbt_fifo_item_t item;
432 mc_pair_stateless_t pair;
435 XBT_DEBUG("**** Begin Replay ****");
437 /* Restore the initial state */
438 MC_restore_snapshot(initial_state_liveness->snapshot);
440 /* At the moment of taking the snapshot the raw heap was set, so restoring
441 * it will set it back again, we have to unset it to continue */
442 if(!initial_state_liveness->raw_mem_set)
447 item = xbt_fifo_get_last_item(stack);
449 while(depth <= xbt_fifo_size(stack)){
451 pair = (mc_pair_stateless_t) xbt_fifo_get_item_content(item);
452 state = (mc_state_t) pair->graph_state;
454 if(pair->requests > 0){
456 saved_req = MC_state_get_executed_request(state, &value);
457 //XBT_DEBUG("SavedReq->call %u", saved_req->call);
459 if(saved_req != NULL){
460 /* because we got a copy of the executed request, we have to fetch the
461 real one, pointed by the request field of the issuer process */
462 req = &saved_req->issuer->simcall;
463 //XBT_DEBUG("Req->call %u", req->call);
465 /* Debug information */
466 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
467 req_str = MC_request_to_string(req, value);
468 XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
474 SIMIX_simcall_pre(req, value);
475 MC_wait_for_requests();
480 /* Update statistics */
481 mc_stats_pair->visited_pairs++;
483 item = xbt_fifo_get_prev_item(item);
488 /* Traverse the stack from the initial state and re-execute the transitions */
489 for (item = xbt_fifo_get_last_item(stack);
490 item != xbt_fifo_get_first_item(stack);
491 item = xbt_fifo_get_prev_item(item)) {
493 pair = (mc_pair_stateless_t) xbt_fifo_get_item_content(item);
494 state = (mc_state_t) pair->graph_state;
496 if(pair->requests > 0){
498 saved_req = MC_state_get_executed_request(state, &value);
499 //XBT_DEBUG("SavedReq->call %u", saved_req->call);
501 if(saved_req != NULL){
502 /* because we got a copy of the executed request, we have to fetch the
503 real one, pointed by the request field of the issuer process */
504 req = &saved_req->issuer->simcall;
505 //XBT_DEBUG("Req->call %u", req->call);
507 /* Debug information */
508 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
509 req_str = MC_request_to_string(req, value);
510 XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
516 SIMIX_simcall_pre(req, value);
517 MC_wait_for_requests();
522 /* Update statistics */
523 mc_stats_pair->visited_pairs++;
527 XBT_DEBUG("**** End Replay ****");
529 if(initial_state_liveness->raw_mem_set)
537 * \brief Dumps the contents of a model-checker's stack and shows the actual
539 * \param stack The stack to dump
541 void MC_dump_stack_safety(xbt_fifo_t stack)
544 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
546 MC_show_stack_safety(stack);
548 if(!_sg_mc_checkpoint){
553 while ((state = (mc_state_t) xbt_fifo_pop(stack)) != NULL)
554 MC_state_delete(state);
567 void MC_show_stack_safety(xbt_fifo_t stack)
571 xbt_fifo_item_t item;
573 char *req_str = NULL;
575 for (item = xbt_fifo_get_last_item(stack);
576 (item ? (state = (mc_state_t) (xbt_fifo_get_item_content(item)))
577 : (NULL)); item = xbt_fifo_get_prev_item(item)) {
578 req = MC_state_get_executed_request(state, &value);
580 req_str = MC_request_to_string(req, value);
581 XBT_INFO("%s", req_str);
587 void MC_show_deadlock(smx_simcall_t req)
589 /*char *req_str = NULL;*/
590 XBT_INFO("**************************");
591 XBT_INFO("*** DEAD-LOCK DETECTED ***");
592 XBT_INFO("**************************");
593 XBT_INFO("Locked request:");
594 /*req_str = MC_request_to_string(req);
595 XBT_INFO("%s", req_str);
597 XBT_INFO("Counter-example execution trace:");
598 MC_dump_stack_safety(mc_stack_safety);
602 void MC_show_stack_liveness(xbt_fifo_t stack){
604 mc_pair_stateless_t pair;
605 xbt_fifo_item_t item;
607 char *req_str = NULL;
609 for (item = xbt_fifo_get_last_item(stack);
610 (item ? (pair = (mc_pair_stateless_t) (xbt_fifo_get_item_content(item)))
611 : (NULL)); item = xbt_fifo_get_prev_item(item)) {
612 req = MC_state_get_executed_request(pair->graph_state, &value);
614 if(pair->requests>0){
615 req_str = MC_request_to_string(req, value);
616 XBT_INFO("%s", req_str);
619 XBT_INFO("End of system requests but evolution in Büchi automaton");
625 void MC_dump_stack_liveness(xbt_fifo_t stack){
627 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
629 mc_pair_stateless_t pair;
632 while ((pair = (mc_pair_stateless_t) xbt_fifo_pop(stack)) != NULL)
633 pair_stateless_free(pair);
642 void MC_print_statistics(mc_stats_t stats)
644 //XBT_INFO("State space size ~= %lu", stats->state_size);
645 XBT_INFO("Expanded states = %lu", stats->expanded_states);
646 XBT_INFO("Visited states = %lu", stats->visited_states);
647 XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
648 XBT_INFO("Expanded / Visited = %lf",
649 (double) stats->visited_states / stats->expanded_states);
650 /*XBT_INFO("Exploration coverage = %lf",
651 (double)stats->expanded_states / stats->state_size); */
654 void MC_print_statistics_pairs(mc_stats_pair_t stats)
656 XBT_INFO("Expanded pairs = %lu", stats->expanded_pairs);
657 XBT_INFO("Visited pairs = %lu", stats->visited_pairs);
658 //XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
659 XBT_INFO("Expanded / Visited = %lf",
660 (double) stats->visited_pairs / stats->expanded_pairs);
662 if(mmalloc_get_current_heap() == raw_heap)
666 void MC_assert(int prop)
668 if (MC_is_active() && !prop){
669 XBT_INFO("**************************");
670 XBT_INFO("*** PROPERTY NOT VALID ***");
671 XBT_INFO("**************************");
672 XBT_INFO("Counter-example execution trace:");
673 MC_dump_stack_safety(mc_stack_safety);
674 MC_print_statistics(mc_stats);
679 static void MC_assert_pair(int prop){
680 if (MC_is_active() && !prop) {
681 XBT_INFO("**************************");
682 XBT_INFO("*** PROPERTY NOT VALID ***");
683 XBT_INFO("**************************");
684 //XBT_INFO("Counter-example execution trace:");
685 MC_show_stack_liveness(mc_stack_liveness);
686 //MC_dump_snapshot_stack(mc_snapshot_stack);
687 MC_print_statistics_pairs(mc_stats_pair);
692 void MC_process_clock_add(smx_process_t process, double amount)
694 mc_time[process->pid] += amount;
697 double MC_process_clock_get(smx_process_t process)
701 return mc_time[process->pid];
709 void MC_automaton_load(const char *file){
711 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
715 if (_mc_property_automaton == NULL)
716 _mc_property_automaton = xbt_automaton_new();
718 xbt_automaton_load(_mc_property_automaton,file);
727 void MC_automaton_new_propositional_symbol(const char* id, void* fct) {
729 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
733 if (_mc_property_automaton == NULL)
734 _mc_property_automaton = xbt_automaton_new();
736 xbt_new_propositional_symbol(_mc_property_automaton,id,fct);
745 /************ MC_ignore ***********/
747 void MC_ignore_heap(void *address, size_t size){
749 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
753 if(mc_heap_comparison_ignore == NULL)
754 mc_heap_comparison_ignore = xbt_dynar_new(sizeof(mc_heap_ignore_region_t), NULL);
756 mc_heap_ignore_region_t region = NULL;
757 region = xbt_new0(s_mc_heap_ignore_region_t, 1);
758 region->address = address;
761 if((address >= std_heap) && (address <= (void*)((char *)std_heap + STD_HEAP_SIZE))){
763 region->block = ((char*)address - (char*)((xbt_mheap_t)std_heap)->heapbase) / BLOCKSIZE + 1;
765 if(((xbt_mheap_t)std_heap)->heapinfo[region->block].type == 0){
766 region->fragment = -1;
767 ((xbt_mheap_t)std_heap)->heapinfo[region->block].busy_block.ignore = 1;
769 region->fragment = ((uintptr_t) (ADDR2UINT (address) % (BLOCKSIZE))) >> ((xbt_mheap_t)std_heap)->heapinfo[region->block].type;
770 ((xbt_mheap_t)std_heap)->heapinfo[region->block].busy_frag.ignore[region->fragment] = 1;
775 unsigned int cursor = 0;
776 mc_heap_ignore_region_t current_region;
777 xbt_dynar_foreach(mc_heap_comparison_ignore, cursor, current_region){
778 if(current_region->address > address)
782 xbt_dynar_insert_at(mc_heap_comparison_ignore, cursor, ®ion);
790 void MC_ignore_data_bss(void *address, size_t size){
792 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
796 if(mc_data_bss_comparison_ignore == NULL)
797 mc_data_bss_comparison_ignore = xbt_dynar_new(sizeof(mc_data_bss_ignore_variable_t), NULL);
799 if(xbt_dynar_is_empty(mc_data_bss_comparison_ignore)){
801 mc_data_bss_ignore_variable_t var = NULL;
802 var = xbt_new0(s_mc_data_bss_ignore_variable_t, 1);
803 var->address = address;
806 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, 0, &var);
810 unsigned int cursor = 0;
812 int end = xbt_dynar_length(mc_data_bss_comparison_ignore) - 1;
813 mc_data_bss_ignore_variable_t current_var = NULL;
816 cursor = (start + end) / 2;
817 current_var = (mc_data_bss_ignore_variable_t)xbt_dynar_get_as(mc_data_bss_comparison_ignore, cursor, mc_data_bss_ignore_variable_t);
818 if(current_var->address == address){
824 if(current_var->address < address)
826 if(current_var->address > address)
830 mc_data_bss_ignore_variable_t var = NULL;
831 var = xbt_new0(s_mc_data_bss_ignore_variable_t, 1);
832 var->address = address;
835 if(current_var->address < address)
836 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, cursor + 1, &var);
838 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, cursor, &var);
848 static size_t data_bss_ignore_size(void *address){
849 unsigned int cursor = 0;
851 int end = xbt_dynar_length(mc_data_bss_comparison_ignore) - 1;
852 mc_data_bss_ignore_variable_t var;
855 cursor = (start + end) / 2;
856 var = (mc_data_bss_ignore_variable_t)xbt_dynar_get_as(mc_data_bss_comparison_ignore, cursor, mc_data_bss_ignore_variable_t);
857 if(var->address == address)
859 if(var->address < address){
860 if((void *)((char *)var->address + var->size) > address)
861 return (char *)var->address + var->size - (char*)address;
865 if(var->address > address)
874 void MC_ignore_stack(const char *var_name, const char *frame){
876 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
880 if(mc_stack_comparison_ignore == NULL)
881 mc_stack_comparison_ignore = xbt_dynar_new(sizeof(mc_stack_ignore_variable_t), NULL);
883 if(xbt_dynar_is_empty(mc_stack_comparison_ignore)){
885 mc_stack_ignore_variable_t var = NULL;
886 var = xbt_new0(s_mc_stack_ignore_variable_t, 1);
887 var->var_name = strdup(var_name);
888 var->frame = strdup(frame);
890 xbt_dynar_insert_at(mc_stack_comparison_ignore, 0, &var);
894 unsigned int cursor = 0;
896 int end = xbt_dynar_length(mc_stack_comparison_ignore) - 1;
897 mc_stack_ignore_variable_t current_var = NULL;
900 cursor = (start + end) / 2;
901 current_var = (mc_stack_ignore_variable_t)xbt_dynar_get_as(mc_stack_comparison_ignore, cursor, mc_stack_ignore_variable_t);
902 if(strcmp(current_var->frame, frame) == 0){
903 if(strcmp(current_var->var_name, var_name) == 0){
909 if(strcmp(current_var->var_name, var_name) < 0)
911 if(strcmp(current_var->var_name, var_name) > 0)
914 if(strcmp(current_var->frame, frame) < 0)
916 if(strcmp(current_var->frame, frame) > 0)
920 mc_stack_ignore_variable_t var = NULL;
921 var = xbt_new0(s_mc_stack_ignore_variable_t, 1);
922 var->var_name = strdup(var_name);
923 var->frame = strdup(frame);
925 if(strcmp(current_var->frame, frame) < 0)
926 xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor + 1, &var);
928 xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor, &var);
939 void MC_new_stack_area(void *stack, char *name, void* context, size_t size){
941 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
944 if(stacks_areas == NULL)
945 stacks_areas = xbt_dynar_new(sizeof(stack_region_t), NULL);
947 stack_region_t region = NULL;
948 region = xbt_new0(s_stack_region_t, 1);
949 region->address = stack;
950 region->process_name = strdup(name);
951 region->context = context;
953 xbt_dynar_push(stacks_areas, ®ion);
961 /************ DWARF ***********/
963 xbt_dict_t MC_get_location_list(const char *elf_file){
965 char *command = bprintf("objdump -Wo %s", elf_file);
967 FILE *fp = popen(command, "r");
970 perror("popen for objdump failed");
974 int debug = 0; /*Detect if the program has been compiled with -g */
976 xbt_dict_t location_list = xbt_dict_new_homogeneous(NULL);
977 char *line = NULL, *loc_expr = NULL;
981 xbt_dynar_t split = NULL;
983 while ((read = getline(&line, &n, fp)) != -1) {
985 /* Wipeout the new line character */
986 line[read - 1] = '\0';
988 xbt_str_trim(line, NULL);
993 if(strlen(line) == 0)
998 if(strncmp(line, elf_file, strlen(elf_file)) == 0)
1001 if(strncmp(line, "Contents", 8) == 0)
1004 if(strncmp(line, "Offset", 6) == 0){
1011 XBT_INFO("Your program must be compiled with -g");
1015 xbt_dynar_t loclist = xbt_dynar_new(sizeof(dw_location_entry_t), NULL);
1017 xbt_str_strip_spaces(line);
1018 split = xbt_str_split(line, " ");
1020 while(read != -1 && strcmp("<End", (char *)xbt_dynar_get_as(split, 1, char *)) != 0){
1022 dw_location_entry_t new_entry = xbt_new0(s_dw_location_entry_t, 1);
1023 new_entry->lowpc = strtoul((char *)xbt_dynar_get_as(split, 1, char *), NULL, 16);
1024 new_entry->highpc = strtoul((char *)xbt_dynar_get_as(split, 2, char *), NULL, 16);
1027 while(cursor_remove < 3){
1028 xbt_dynar_remove_at(split, 0, NULL);
1032 loc_expr = xbt_str_join(split, " ");
1033 xbt_str_ltrim(loc_expr, "(");
1034 xbt_str_rtrim(loc_expr, ")");
1035 new_entry->location = get_location(NULL, loc_expr);
1037 xbt_dynar_push(loclist, &new_entry);
1039 xbt_dynar_free(&split);
1042 read = getline(&line, &n, fp);
1044 line[read - 1] = '\0';
1045 xbt_str_strip_spaces(line);
1046 split = xbt_str_split(line, " ");
1052 char *key = bprintf("%d", (int)strtoul((char *)xbt_dynar_get_as(split, 0, char *), NULL, 16));
1053 xbt_dict_set(location_list, key, loclist, NULL);
1056 xbt_dynar_free(&split);
1064 return location_list;
1067 static dw_frame_t get_frame_by_offset(xbt_dict_t all_variables, unsigned long int offset){
1069 xbt_dict_cursor_t cursor = NULL;
1073 xbt_dict_foreach(all_variables, cursor, name, res) {
1074 if(offset >= res->start && offset < res->end){
1075 xbt_dict_cursor_free(&cursor);
1080 xbt_dict_cursor_free(&cursor);
1085 void MC_get_local_variables(const char *elf_file, xbt_dict_t location_list, xbt_dict_t *all_variables){
1087 char *command = bprintf("objdump -Wi %s", elf_file);
1089 FILE *fp = popen(command, "r");
1092 perror("popen for objdump failed");
1094 char *line = NULL, *origin, *abstract_origin, *current_frame = NULL;
1097 int valid_variable = 1;
1098 char *node_type = NULL, *location_type = NULL, *variable_name = NULL, *loc_expr = NULL;
1099 xbt_dynar_t split = NULL, split2 = NULL;
1101 xbt_dict_t variables_origin = xbt_dict_new_homogeneous(NULL);
1102 xbt_dict_t subprograms_origin = xbt_dict_new_homogeneous(NULL);
1103 char *subprogram_name = NULL, *subprogram_start = NULL, *subprogram_end = NULL;
1104 int new_frame = 0, new_variable = 0;
1105 dw_frame_t variable_frame, subroutine_frame = NULL;
1107 read = getline(&line, &n, fp);
1109 while (read != -1) {
1112 read = getline(&line, &n, fp);
1116 /* Wipeout the new line character */
1117 line[read - 1] = '\0';
1119 if(strlen(line) == 0){
1120 read = getline(&line, &n, fp);
1124 xbt_str_ltrim(line, NULL);
1125 xbt_str_strip_spaces(line);
1128 read = getline(&line, &n, fp);
1132 xbt_dynar_free(&split);
1133 split = xbt_str_split(line, " ");
1136 node_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1138 if(strcmp(node_type, "(DW_TAG_subprogram)") == 0){ /* New frame */
1140 dw_frame_t frame = NULL;
1142 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1143 subprogram_start = strdup(strtok(NULL, "<"));
1144 xbt_str_rtrim(subprogram_start, ">:");
1146 read = getline(&line, &n, fp);
1151 read = getline(&line, &n, fp);
1155 /* Wipeout the new line character */
1156 line[read - 1] = '\0';
1158 if(strlen(line) == 0){
1159 read = getline(&line, &n, fp);
1163 xbt_dynar_free(&split);
1164 xbt_str_rtrim(line, NULL);
1165 xbt_str_strip_spaces(line);
1166 split = xbt_str_split(line, " ");
1168 node_type = xbt_dynar_get_as(split, 1, char *);
1170 if(strncmp(node_type, "DW_AT_", 6) != 0)
1173 if(strcmp(node_type, "DW_AT_sibling") == 0){
1175 subprogram_end = strdup(xbt_dynar_get_as(split, 3, char*));
1176 xbt_str_ltrim(subprogram_end, "<0x");
1177 xbt_str_rtrim(subprogram_end, ">");
1179 }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){ /* Frame already in dict */
1182 abstract_origin = strdup(xbt_dynar_get_as(split, 2, char*));
1183 xbt_str_ltrim(abstract_origin, "<0x");
1184 xbt_str_rtrim(abstract_origin, ">");
1185 subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, abstract_origin);
1186 frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
1187 xbt_free(abstract_origin);
1189 }else if(strcmp(node_type, "DW_AT_name") == 0){
1192 xbt_free(current_frame);
1193 frame = xbt_new0(s_dw_frame_t, 1);
1194 frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1195 frame->variables = xbt_dict_new_homogeneous(NULL);
1196 frame->frame_base = xbt_new0(s_dw_location_t, 1);
1197 current_frame = strdup(frame->name);
1199 xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
1201 }else if(strcmp(node_type, "DW_AT_frame_base") == 0){
1203 location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1205 if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
1207 frame->frame_base = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
1211 xbt_str_strip_spaces(line);
1212 split2 = xbt_str_split(line, "(");
1213 xbt_dynar_remove_at(split2, 0, NULL);
1214 loc_expr = xbt_str_join(split2, " ");
1215 xbt_str_rtrim(loc_expr, ")");
1216 frame->frame_base = get_location(NULL, loc_expr);
1217 xbt_dynar_free(&split2);
1222 }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
1225 frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1227 }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
1230 frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1232 }else if(strcmp(node_type, "DW_AT_MIPS_linkage_name:") == 0){
1234 xbt_free(frame->name);
1235 xbt_free(current_frame);
1236 frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1237 current_frame = strdup(frame->name);
1238 xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
1242 read = getline(&line, &n, fp);
1247 frame->start = strtoul(subprogram_start, NULL, 16);
1248 if(subprogram_end != NULL)
1249 frame->end = strtoul(subprogram_end, NULL, 16);
1250 xbt_dict_set(*all_variables, frame->name, frame, NULL);
1253 xbt_free(subprogram_start);
1254 if(subprogram_end != NULL){
1255 xbt_free(subprogram_end);
1256 subprogram_end = NULL;
1260 }else if(strcmp(node_type, "(DW_TAG_variable)") == 0){ /* New variable */
1262 dw_local_variable_t var = NULL;
1264 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1265 origin = strdup(strtok(NULL, "<"));
1266 xbt_str_rtrim(origin, ">:");
1268 read = getline(&line, &n, fp);
1273 read = getline(&line, &n, fp);
1277 /* Wipeout the new line character */
1278 line[read - 1] = '\0';
1280 if(strlen(line) == 0){
1281 read = getline(&line, &n, fp);
1285 xbt_dynar_free(&split);
1286 xbt_str_rtrim(line, NULL);
1287 xbt_str_strip_spaces(line);
1288 split = xbt_str_split(line, " ");
1290 node_type = xbt_dynar_get_as(split, 1, char *);
1292 if(strncmp(node_type, "DW_AT_", 6) != 0)
1295 if(strcmp(node_type, "DW_AT_name") == 0){
1298 var = xbt_new0(s_dw_local_variable_t, 1);
1299 var->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1301 xbt_dict_set(variables_origin, origin, var->name, NULL);
1303 }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
1306 abstract_origin = xbt_dynar_get_as(split, 2, char *);
1307 xbt_str_ltrim(abstract_origin, "<0x");
1308 xbt_str_rtrim(abstract_origin, ">");
1310 variable_name = (char *)xbt_dict_get_or_null(variables_origin, abstract_origin);
1311 variable_frame = get_frame_by_offset(*all_variables, strtoul(abstract_origin, NULL, 16));
1312 var = xbt_dict_get_or_null(variable_frame->variables, variable_name);
1314 }else if(strcmp(node_type, "DW_AT_location") == 0){
1316 if(valid_variable == 1 && var != NULL){
1318 var->location = xbt_new0(s_dw_location_t, 1);
1320 location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1322 if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
1324 var->location = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
1328 xbt_str_strip_spaces(line);
1329 split2 = xbt_str_split(line, "(");
1330 xbt_dynar_remove_at(split2, 0, NULL);
1331 loc_expr = xbt_str_join(split2, " ");
1332 xbt_str_rtrim(loc_expr, ")");
1333 var->location = get_location(NULL, loc_expr);
1334 xbt_dynar_free(&split2);
1341 }else if(strcmp(node_type, "DW_AT_external") == 0){
1347 read = getline(&line, &n, fp);
1351 if(new_variable == 1 && valid_variable == 1){
1353 variable_frame = xbt_dict_get_or_null(*all_variables, current_frame);
1354 xbt_dict_set(variable_frame->variables, var->name, var, NULL);
1360 }else if(strcmp(node_type, "(DW_TAG_inlined_subroutine)") == 0){
1362 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1363 origin = strdup(strtok(NULL, "<"));
1364 xbt_str_rtrim(origin, ">:");
1366 read = getline(&line, &n, fp);
1370 /* Wipeout the new line character */
1371 line[read - 1] = '\0';
1374 read = getline(&line, &n, fp);
1378 if(strlen(line) == 0){
1379 read = getline(&line, &n, fp);
1383 xbt_dynar_free(&split);
1384 xbt_str_rtrim(line, NULL);
1385 xbt_str_strip_spaces(line);
1386 split = xbt_str_split(line, " ");
1388 if(strncmp(xbt_dynar_get_as(split, 1, char *), "DW_AT_", 6) != 0)
1391 node_type = xbt_dynar_get_as(split, 1, char *);
1393 if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
1395 origin = xbt_dynar_get_as(split, 2, char *);
1396 xbt_str_ltrim(origin, "<0x");
1397 xbt_str_rtrim(origin, ">");
1399 subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, origin);
1400 subroutine_frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
1402 }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
1404 subroutine_frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1406 }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
1408 subroutine_frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1411 read = getline(&line, &n, fp);
1417 read = getline(&line, &n, fp);
1423 xbt_dynar_free(&split);
1430 static dw_location_t get_location(xbt_dict_t location_list, char *expr){
1432 dw_location_t loc = xbt_new0(s_dw_location_t, 1);
1434 if(location_list != NULL){
1436 char *key = bprintf("%d", (int)strtoul(expr, NULL, 16));
1437 loc->type = e_dw_loclist;
1438 loc->location.loclist = (xbt_dynar_t)xbt_dict_get_or_null(location_list, key);
1439 if(loc->location.loclist == NULL)
1440 XBT_INFO("Key not found in loclist");
1447 char *tok = NULL, *tok2 = NULL;
1449 xbt_dynar_t tokens1 = xbt_str_split(expr, ";");
1450 xbt_dynar_t tokens2;
1452 loc->type = e_dw_compose;
1453 loc->location.compose = xbt_dynar_new(sizeof(dw_location_t), NULL);
1455 while(cursor < xbt_dynar_length(tokens1)){
1457 tok = xbt_dynar_get_as(tokens1, cursor, char*);
1458 tokens2 = xbt_str_split(tok, " ");
1459 tok2 = xbt_dynar_get_as(tokens2, 0, char*);
1461 if(strncmp(tok2, "DW_OP_reg", 9) == 0){
1462 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1463 new_element->type = e_dw_register;
1464 new_element->location.reg = atoi(strtok(tok2, "DW_OP_reg"));
1465 xbt_dynar_push(loc->location.compose, &new_element);
1466 }else if(strcmp(tok2, "DW_OP_fbreg:") == 0){
1467 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1468 new_element->type = e_dw_fbregister_op;
1469 new_element->location.fbreg_op = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1470 xbt_dynar_push(loc->location.compose, &new_element);
1471 }else if(strncmp(tok2, "DW_OP_breg", 10) == 0){
1472 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1473 new_element->type = e_dw_bregister_op;
1474 new_element->location.breg_op.reg = atoi(strtok(tok2, "DW_OP_breg"));
1475 new_element->location.breg_op.offset = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1476 xbt_dynar_push(loc->location.compose, &new_element);
1477 }else if(strncmp(tok2, "DW_OP_lit", 9) == 0){
1478 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1479 new_element->type = e_dw_lit;
1480 new_element->location.lit = atoi(strtok(tok2, "DW_OP_lit"));
1481 xbt_dynar_push(loc->location.compose, &new_element);
1482 }else if(strcmp(tok2, "DW_OP_piece:") == 0){
1483 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1484 new_element->type = e_dw_piece;
1485 new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1486 /*if(strlen(xbt_dynar_get_as(tokens2, 1, char*)) > 1)
1487 new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1489 new_element->location.piece = xbt_dynar_get_as(tokens2, 1, char*)[0] - '0';*/
1490 xbt_dynar_push(loc->location.compose, &new_element);
1491 }else if(strcmp(tok2, "DW_OP_plus_uconst:") == 0){
1492 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1493 new_element->type = e_dw_plus_uconst;
1494 new_element->location.plus_uconst = atoi(xbt_dynar_get_as(tokens2, 1, char *));
1495 xbt_dynar_push(loc->location.compose, &new_element);
1496 }else if(strcmp(tok, "DW_OP_abs") == 0 ||
1497 strcmp(tok, "DW_OP_and") == 0 ||
1498 strcmp(tok, "DW_OP_div") == 0 ||
1499 strcmp(tok, "DW_OP_minus") == 0 ||
1500 strcmp(tok, "DW_OP_mod") == 0 ||
1501 strcmp(tok, "DW_OP_mul") == 0 ||
1502 strcmp(tok, "DW_OP_neg") == 0 ||
1503 strcmp(tok, "DW_OP_not") == 0 ||
1504 strcmp(tok, "DW_OP_or") == 0 ||
1505 strcmp(tok, "DW_OP_plus") == 0){
1506 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1507 new_element->type = e_dw_arithmetic;
1508 new_element->location.arithmetic = strdup(strtok(tok2, "DW_OP_"));
1509 xbt_dynar_push(loc->location.compose, &new_element);
1510 }else if(strcmp(tok, "DW_OP_stack_value") == 0){
1511 }else if(strcmp(tok2, "DW_OP_deref_size:") == 0){
1512 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1513 new_element->type = e_dw_deref;
1514 new_element->location.deref_size = (unsigned int short) atoi(xbt_dynar_get_as(tokens2, 1, char*));
1515 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1516 new_element->location.deref_size = atoi(xbt_dynar_get_as(tokens, cursor, char*));
1518 new_element->location.deref_size = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
1519 xbt_dynar_push(loc->location.compose, &new_element);
1520 }else if(strcmp(tok, "DW_OP_deref") == 0){
1521 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1522 new_element->type = e_dw_deref;
1523 new_element->location.deref_size = sizeof(void *);
1524 xbt_dynar_push(loc->location.compose, &new_element);
1525 }else if(strcmp(tok2, "DW_OP_constu:") == 0){
1526 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1527 new_element->type = e_dw_uconstant;
1528 new_element->location.uconstant.bytes = 1;
1529 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1530 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1531 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens, cursor, char*)));
1533 new_element->location.uconstant.value = (unsigned long int)(xbt_dynar_get_as(tokens, cursor, char*)[0] - '0');*/
1534 xbt_dynar_push(loc->location.compose, &new_element);
1535 }else if(strcmp(tok2, "DW_OP_consts:") == 0){
1536 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1537 new_element->type = e_dw_sconstant;
1538 new_element->location.sconstant.bytes = 1;
1539 new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1540 xbt_dynar_push(loc->location.compose, &new_element);
1541 }else if(strcmp(tok2, "DW_OP_const1u:") == 0 ||
1542 strcmp(tok2, "DW_OP_const2u:") == 0 ||
1543 strcmp(tok2, "DW_OP_const4u:") == 0 ||
1544 strcmp(tok2, "DW_OP_const8u:") == 0){
1545 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1546 new_element->type = e_dw_uconstant;
1547 new_element->location.uconstant.bytes = tok2[11] - '0';
1548 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1549 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1550 new_element->location.constant.value = atoi(xbt_dynar_get_as(tokens, cursor, char*));
1552 new_element->location.constant.value = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
1553 xbt_dynar_push(loc->location.compose, &new_element);
1554 }else if(strcmp(tok, "DW_OP_const1s") == 0 ||
1555 strcmp(tok, "DW_OP_const2s") == 0 ||
1556 strcmp(tok, "DW_OP_const4s") == 0 ||
1557 strcmp(tok, "DW_OP_const8s") == 0){
1558 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1559 new_element->type = e_dw_sconstant;
1560 new_element->location.sconstant.bytes = tok2[11] - '0';
1561 new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1562 xbt_dynar_push(loc->location.compose, &new_element);
1564 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1565 new_element->type = e_dw_unsupported;
1566 xbt_dynar_push(loc->location.compose, &new_element);
1570 xbt_dynar_free(&tokens2);
1574 xbt_dynar_free(&tokens1);
1583 void print_local_variables(xbt_dict_t list){
1585 dw_location_entry_t entry;
1586 dw_location_t location_entry;
1587 unsigned int cursor3 = 0, cursor4 = 0;
1588 xbt_dict_cursor_t cursor = 0, cursor2 = 0;
1590 char *frame_name, *variable_name;
1591 dw_frame_t current_frame;
1592 dw_local_variable_t current_variable;
1594 xbt_dict_foreach(list, cursor, frame_name, current_frame){
1595 fprintf(stderr, "Frame name : %s\n", current_frame->name);
1596 fprintf(stderr, "Location type : %d\n", current_frame->frame_base->type);
1597 xbt_dict_foreach((xbt_dict_t)current_frame->variables, cursor2, variable_name, current_variable){
1598 fprintf(stderr, "Name : %s\n", current_variable->name);
1599 if(current_variable->location == NULL)
1601 fprintf(stderr, "Location type : %d\n", current_variable->location->type);
1602 switch(current_variable->location->type){
1604 xbt_dynar_foreach(current_variable->location->location.loclist, cursor3, entry){
1605 fprintf(stderr, "Lowpc : %lx, Highpc : %lx,", entry->lowpc, entry->highpc);
1606 switch(entry->location->type){
1607 case e_dw_register :
1608 fprintf(stderr, " Location : in register %d\n", entry->location->location.reg);
1610 case e_dw_bregister_op:
1611 fprintf(stderr, " Location : Add %d to the value in register %d\n", entry->location->location.breg_op.offset, entry->location->location.breg_op.reg);
1614 fprintf(stderr, "Value already kwnown : %d\n", entry->location->location.lit);
1616 case e_dw_fbregister_op:
1617 fprintf(stderr, " Location : %d bytes from logical frame pointer\n", entry->location->location.fbreg_op);
1620 fprintf(stderr, " Location :\n");
1621 xbt_dynar_foreach(entry->location->location.compose, cursor4, location_entry){
1622 switch(location_entry->type){
1623 case e_dw_register :
1624 fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
1626 case e_dw_bregister_op:
1627 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);
1630 fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
1632 case e_dw_fbregister_op:
1633 fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
1636 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);
1638 case e_dw_arithmetic :
1639 fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
1642 fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
1644 case e_dw_uconstant :
1645 fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
1647 case e_dw_sconstant :
1648 fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
1651 fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
1657 fprintf(stderr, "Location type not supported\n");
1664 fprintf(stderr, "Location :\n");
1665 xbt_dynar_foreach(current_variable->location->location.compose, cursor4, location_entry){
1666 switch(location_entry->type){
1667 case e_dw_register :
1668 fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
1670 case e_dw_bregister_op:
1671 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);
1674 fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
1676 case e_dw_fbregister_op:
1677 fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
1680 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);
1682 case e_dw_arithmetic :
1683 fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
1686 fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
1688 case e_dw_uconstant :
1689 fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
1691 case e_dw_sconstant :
1692 fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
1695 fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
1701 fprintf(stderr, "Location type not supported\n");
1709 static void MC_get_global_variables(char *elf_file){
1713 char *command = bprintf("objdump -t -j .data -j .bss %s", elf_file);
1715 fp = popen(command, "r");
1718 perror("popen failed");
1722 if(mc_global_variables == NULL)
1723 mc_global_variables = xbt_dynar_new(sizeof(global_variable_t), global_variable_free_voidp);
1729 xbt_dynar_t line_tokens = NULL;
1730 unsigned long offset;
1732 int type = strcmp(elf_file, xbt_binary_name); /* 0 = binary, other = libsimgrid */
1734 while ((read = getline(&line, &n, fp)) != -1){
1739 /* Wipeout the new line character */
1740 line[read - 1] = '\0';
1742 xbt_str_strip_spaces(line);
1743 xbt_str_ltrim(line, NULL);
1745 line_tokens = xbt_str_split(line, NULL);
1747 if(xbt_dynar_length(line_tokens) <= 4 || strcmp(xbt_dynar_get_as(line_tokens, 0, char *), "SYMBOL") == 0)
1750 if((strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "__gcov", 6) == 0)
1751 || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "gcov", 4) == 0)
1752 || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), ".data") == 0)
1753 || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), ".bss") == 0)
1754 || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "stderr", 6) == 0)
1755 || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "counter", 7) == 0)
1756 || ((size_t)strtoul(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 2, char*), NULL, 16) == 0))
1759 global_variable_t var = xbt_new0(s_global_variable_t, 1);
1762 var->address = (void *)strtoul(xbt_dynar_get_as(line_tokens, 0, char*), NULL, 16);
1764 offset = strtoul(xbt_dynar_get_as(line_tokens, 0, char*), NULL, 16);
1765 var->address = (char *)start_text_libsimgrid+offset;
1768 var->size = (size_t)strtoul(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 2, char*), NULL, 16);
1769 var->name = strdup(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*));
1771 if(data_bss_ignore_size(var->address) > 0)
1772 global_variable_free(var);
1774 xbt_dynar_push(mc_global_variables, &var);
1776 xbt_dynar_free(&line_tokens);
1786 void global_variable_free(global_variable_t v){
1791 void global_variable_free_voidp(void *v){
1792 global_variable_free((global_variable_t) * (void **) v);