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;
92 xbt_fifo_t mc_stack_safety = NULL;
93 mc_stats_t mc_stats = NULL;
94 mc_global_t initial_state_safety = NULL;
98 mc_stats_pair_t mc_stats_pair = NULL;
99 xbt_fifo_t mc_stack_liveness = NULL;
100 mc_global_t initial_state_liveness = NULL;
104 xbt_dict_t mc_local_variables = NULL;
106 xbt_dynar_t mc_global_variables = NULL;
108 /* Ignore mechanism */
109 xbt_dynar_t mc_stack_comparison_ignore;
110 xbt_dynar_t mc_data_bss_comparison_ignore;
111 extern xbt_dynar_t mc_heap_comparison_ignore;
112 extern xbt_dynar_t stacks_areas;
114 xbt_automaton_t _mc_property_automaton = NULL;
116 /* Static functions */
118 static void MC_assert_pair(int prop);
119 static dw_location_t get_location(xbt_dict_t location_list, char *expr);
120 static dw_frame_t get_frame_by_offset(xbt_dict_t all_variables, unsigned long int offset);
121 static size_t data_bss_ignore_size(void *address);
122 static void MC_get_global_variables(char *elf_file);
124 void MC_do_the_modelcheck_for_real() {
125 if (!_sg_mc_property_file || _sg_mc_property_file[0]=='\0') {
126 if (mc_reduce_kind==e_mc_reduce_unset)
127 mc_reduce_kind=e_mc_reduce_dpor;
129 XBT_INFO("Check a safety property");
130 MC_modelcheck_safety();
134 if (mc_reduce_kind==e_mc_reduce_unset)
135 mc_reduce_kind=e_mc_reduce_none;
137 XBT_INFO("Check the liveness property %s",_sg_mc_property_file);
138 MC_automaton_load(_sg_mc_property_file);
139 MC_modelcheck_liveness();
144 void MC_compare(void){
150 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
152 mc_time = xbt_new0(double, simix_process_maxpid);
154 /* mc_time refers to clock for each process -> ignore it for heap comparison */
156 for(i = 0; i<simix_process_maxpid; i++)
157 MC_ignore_heap(&(mc_time[i]), sizeof(double));
161 /* Initialize the data structures that must be persistent across every
162 iteration of the model-checker (in RAW memory) */
166 MC_init_memory_map_info();
168 mc_local_variables = xbt_dict_new_homogeneous(NULL);
170 /* Get local variables in binary for state equality detection */
171 xbt_dict_t binary_location_list = MC_get_location_list(xbt_binary_name);
172 MC_get_local_variables(xbt_binary_name, binary_location_list, &mc_local_variables);
174 /* Get local variables in libsimgrid for state equality detection */
175 xbt_dict_t libsimgrid_location_list = MC_get_location_list(libsimgrid_path);
176 MC_get_local_variables(libsimgrid_path, libsimgrid_location_list, &mc_local_variables);
178 xbt_dict_free(&libsimgrid_location_list);
179 xbt_dict_free(&binary_location_list);
181 /* Get .plt section (start and end addresses) for data libsimgrid and data program comparison */
182 get_libsimgrid_plt_section();
183 get_binary_plt_section();
185 MC_ignore_data_bss(&end_raw_heap, sizeof(end_raw_heap));
187 /* Get global variables */
188 MC_get_global_variables(xbt_binary_name);
189 MC_get_global_variables(libsimgrid_path);
193 /* Ignore some variables from xbt/ex.h used by exception e for stacks comparison */
194 MC_ignore_stack("e", "*");
195 MC_ignore_stack("__ex_cleanup", "*");
196 MC_ignore_stack("__ex_mctx_en", "*");
197 MC_ignore_stack("__ex_mctx_me", "*");
198 MC_ignore_stack("__xbt_ex_ctx_ptr", "*");
199 MC_ignore_stack("_log_ev", "*");
200 MC_ignore_stack("_throw_ctx", "*");
201 MC_ignore_stack("ctx", "*");
203 MC_ignore_stack("next_context", "smx_ctx_sysv_suspend_serial");
204 MC_ignore_stack("i", "smx_ctx_sysv_suspend_serial");
211 void MC_modelcheck_safety(void)
213 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
215 /* Check if MC is already initialized */
216 if (initial_state_safety)
219 mc_time = xbt_new0(double, simix_process_maxpid);
221 /* Initialize the data structures that must be persistent across every
222 iteration of the model-checker (in RAW memory) */
226 /* Initialize statistics */
227 mc_stats = xbt_new0(s_mc_stats_t, 1);
228 mc_stats->state_size = 1;
230 /* Create exploration stack */
231 mc_stack_safety = xbt_fifo_new();
235 if(_sg_mc_visited > 0){
239 MC_init_memory_map_info();
240 get_libsimgrid_plt_section();
241 get_binary_plt_section();
248 /* Save the initial state */
249 initial_state_safety = xbt_new0(s_mc_global_t, 1);
250 initial_state_safety->snapshot = MC_take_snapshot();
261 void MC_modelcheck_liveness(){
263 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
269 /* Initialize statistics */
270 mc_stats_pair = xbt_new0(s_mc_stats_pair_t, 1);
272 /* Create exploration stack */
273 mc_stack_liveness = xbt_fifo_new();
275 initial_state_liveness = xbt_new0(s_mc_global_t, 1);
282 MC_print_statistics_pairs(mc_stats_pair);
299 int MC_random(int min, int max)
301 /*FIXME: return mc_current_state->executed_transition->random.value;*/
306 * \brief Schedules all the process that are ready to run
308 void MC_wait_for_requests(void)
310 smx_process_t process;
314 while (!xbt_dynar_is_empty(simix_global->process_to_run)) {
315 SIMIX_process_runall();
316 xbt_dynar_foreach(simix_global->process_that_ran, iter, process) {
317 req = &process->simcall;
318 if (req->call != SIMCALL_NONE && !MC_request_is_visible(req))
319 SIMIX_simcall_pre(req, 0);
324 int MC_deadlock_check()
326 int deadlock = FALSE;
327 smx_process_t process;
328 if(xbt_swag_size(simix_global->process_list)){
330 xbt_swag_foreach(process, simix_global->process_list){
331 if(process->simcall.call != SIMCALL_NONE
332 && MC_request_is_enabled(&process->simcall)){
342 * \brief Re-executes from the state at position start all the transitions indicated by
343 * a given model-checker stack.
344 * \param stack The stack with the transitions to execute.
345 * \param start Start index to begin the re-execution.
347 void MC_replay(xbt_fifo_t stack, int start)
349 int raw_mem = (mmalloc_get_current_heap() == raw_heap);
353 smx_simcall_t req = NULL, saved_req = NULL;
354 xbt_fifo_item_t item, start_item;
357 XBT_DEBUG("**** Begin Replay ****");
360 /* Restore the initial state */
361 MC_restore_snapshot(initial_state_safety->snapshot);
362 /* At the moment of taking the snapshot the raw heap was set, so restoring
363 * it will set it back again, we have to unset it to continue */
367 start_item = xbt_fifo_get_last_item(stack);
370 start_item = xbt_fifo_get_prev_item(start_item);
375 /* Traverse the stack from the state at position start and re-execute the transitions */
376 for (item = start_item;
377 item != xbt_fifo_get_first_item(stack);
378 item = xbt_fifo_get_prev_item(item)) {
380 state = (mc_state_t) xbt_fifo_get_item_content(item);
381 saved_req = MC_state_get_executed_request(state, &value);
384 /* because we got a copy of the executed request, we have to fetch the
385 real one, pointed by the request field of the issuer process */
386 req = &saved_req->issuer->simcall;
388 /* Debug information */
389 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
390 req_str = MC_request_to_string(req, value);
391 XBT_DEBUG("Replay: %s (%p)", req_str, state);
396 SIMIX_simcall_pre(req, value);
397 MC_wait_for_requests();
399 /* Update statistics */
400 mc_stats->visited_states++;
401 mc_stats->executed_transitions++;
403 XBT_DEBUG("**** End Replay ****");
413 void MC_replay_liveness(xbt_fifo_t stack, int all_stack)
416 initial_state_liveness->raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
420 smx_simcall_t req = NULL, saved_req = NULL;
421 xbt_fifo_item_t item;
423 mc_pair_stateless_t pair;
426 XBT_DEBUG("**** Begin Replay ****");
428 /* Restore the initial state */
429 MC_restore_snapshot(initial_state_liveness->snapshot);
431 /* At the moment of taking the snapshot the raw heap was set, so restoring
432 * it will set it back again, we have to unset it to continue */
433 if(!initial_state_liveness->raw_mem_set)
438 item = xbt_fifo_get_last_item(stack);
440 while(depth <= xbt_fifo_size(stack)){
442 pair = (mc_pair_stateless_t) xbt_fifo_get_item_content(item);
443 state = (mc_state_t) pair->graph_state;
445 if(pair->requests > 0){
447 saved_req = MC_state_get_executed_request(state, &value);
448 //XBT_DEBUG("SavedReq->call %u", saved_req->call);
450 if(saved_req != NULL){
451 /* because we got a copy of the executed request, we have to fetch the
452 real one, pointed by the request field of the issuer process */
453 req = &saved_req->issuer->simcall;
454 //XBT_DEBUG("Req->call %u", req->call);
456 /* Debug information */
457 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
458 req_str = MC_request_to_string(req, value);
459 XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
465 SIMIX_simcall_pre(req, value);
466 MC_wait_for_requests();
471 /* Update statistics */
472 mc_stats_pair->visited_pairs++;
474 item = xbt_fifo_get_prev_item(item);
479 /* Traverse the stack from the initial state and re-execute the transitions */
480 for (item = xbt_fifo_get_last_item(stack);
481 item != xbt_fifo_get_first_item(stack);
482 item = xbt_fifo_get_prev_item(item)) {
484 pair = (mc_pair_stateless_t) xbt_fifo_get_item_content(item);
485 state = (mc_state_t) pair->graph_state;
487 if(pair->requests > 0){
489 saved_req = MC_state_get_executed_request(state, &value);
490 //XBT_DEBUG("SavedReq->call %u", saved_req->call);
492 if(saved_req != NULL){
493 /* because we got a copy of the executed request, we have to fetch the
494 real one, pointed by the request field of the issuer process */
495 req = &saved_req->issuer->simcall;
496 //XBT_DEBUG("Req->call %u", req->call);
498 /* Debug information */
499 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
500 req_str = MC_request_to_string(req, value);
501 XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
507 SIMIX_simcall_pre(req, value);
508 MC_wait_for_requests();
513 /* Update statistics */
514 mc_stats_pair->visited_pairs++;
518 XBT_DEBUG("**** End Replay ****");
520 if(initial_state_liveness->raw_mem_set)
528 * \brief Dumps the contents of a model-checker's stack and shows the actual
530 * \param stack The stack to dump
532 void MC_dump_stack_safety(xbt_fifo_t stack)
535 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
537 MC_show_stack_safety(stack);
539 if(!_sg_mc_checkpoint){
544 while ((state = (mc_state_t) xbt_fifo_pop(stack)) != NULL)
545 MC_state_delete(state);
558 void MC_show_stack_safety(xbt_fifo_t stack)
562 xbt_fifo_item_t item;
564 char *req_str = NULL;
566 for (item = xbt_fifo_get_last_item(stack);
567 (item ? (state = (mc_state_t) (xbt_fifo_get_item_content(item)))
568 : (NULL)); item = xbt_fifo_get_prev_item(item)) {
569 req = MC_state_get_executed_request(state, &value);
571 req_str = MC_request_to_string(req, value);
572 XBT_INFO("%s", req_str);
578 void MC_show_deadlock(smx_simcall_t req)
580 /*char *req_str = NULL;*/
581 XBT_INFO("**************************");
582 XBT_INFO("*** DEAD-LOCK DETECTED ***");
583 XBT_INFO("**************************");
584 XBT_INFO("Locked request:");
585 /*req_str = MC_request_to_string(req);
586 XBT_INFO("%s", req_str);
588 XBT_INFO("Counter-example execution trace:");
589 MC_dump_stack_safety(mc_stack_safety);
593 void MC_show_stack_liveness(xbt_fifo_t stack){
595 mc_pair_stateless_t pair;
596 xbt_fifo_item_t item;
598 char *req_str = NULL;
600 for (item = xbt_fifo_get_last_item(stack);
601 (item ? (pair = (mc_pair_stateless_t) (xbt_fifo_get_item_content(item)))
602 : (NULL)); item = xbt_fifo_get_prev_item(item)) {
603 req = MC_state_get_executed_request(pair->graph_state, &value);
605 if(pair->requests>0){
606 req_str = MC_request_to_string(req, value);
607 XBT_INFO("%s", req_str);
610 XBT_INFO("End of system requests but evolution in Büchi automaton");
616 void MC_dump_stack_liveness(xbt_fifo_t stack){
618 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
620 mc_pair_stateless_t pair;
623 while ((pair = (mc_pair_stateless_t) xbt_fifo_pop(stack)) != NULL)
624 pair_stateless_free(pair);
633 void MC_print_statistics(mc_stats_t stats)
635 //XBT_INFO("State space size ~= %lu", stats->state_size);
636 XBT_INFO("Expanded states = %lu", stats->expanded_states);
637 XBT_INFO("Visited states = %lu", stats->visited_states);
638 XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
639 XBT_INFO("Expanded / Visited = %lf",
640 (double) stats->visited_states / stats->expanded_states);
641 /*XBT_INFO("Exploration coverage = %lf",
642 (double)stats->expanded_states / stats->state_size); */
645 void MC_print_statistics_pairs(mc_stats_pair_t stats)
647 XBT_INFO("Expanded pairs = %lu", stats->expanded_pairs);
648 XBT_INFO("Visited pairs = %lu", stats->visited_pairs);
649 //XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
650 XBT_INFO("Expanded / Visited = %lf",
651 (double) stats->visited_pairs / stats->expanded_pairs);
653 if(mmalloc_get_current_heap() == raw_heap)
657 void MC_assert(int prop)
659 if (MC_is_active() && !prop){
660 XBT_INFO("**************************");
661 XBT_INFO("*** PROPERTY NOT VALID ***");
662 XBT_INFO("**************************");
663 XBT_INFO("Counter-example execution trace:");
664 MC_dump_stack_safety(mc_stack_safety);
665 MC_print_statistics(mc_stats);
670 static void MC_assert_pair(int prop){
671 if (MC_is_active() && !prop) {
672 XBT_INFO("**************************");
673 XBT_INFO("*** PROPERTY NOT VALID ***");
674 XBT_INFO("**************************");
675 //XBT_INFO("Counter-example execution trace:");
676 MC_show_stack_liveness(mc_stack_liveness);
677 //MC_dump_snapshot_stack(mc_snapshot_stack);
678 MC_print_statistics_pairs(mc_stats_pair);
683 void MC_process_clock_add(smx_process_t process, double amount)
685 mc_time[process->pid] += amount;
688 double MC_process_clock_get(smx_process_t process)
692 return mc_time[process->pid];
700 void MC_automaton_load(const char *file){
702 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
706 if (_mc_property_automaton == NULL)
707 _mc_property_automaton = xbt_automaton_new();
709 xbt_automaton_load(_mc_property_automaton,file);
718 void MC_automaton_new_propositional_symbol(const char* id, void* fct) {
720 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
724 if (_mc_property_automaton == NULL)
725 _mc_property_automaton = xbt_automaton_new();
727 xbt_new_propositional_symbol(_mc_property_automaton,id,fct);
736 /************ MC_ignore ***********/
738 void MC_ignore_heap(void *address, size_t size){
740 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
744 if(mc_heap_comparison_ignore == NULL)
745 mc_heap_comparison_ignore = xbt_dynar_new(sizeof(mc_heap_ignore_region_t), NULL);
747 mc_heap_ignore_region_t region = NULL;
748 region = xbt_new0(s_mc_heap_ignore_region_t, 1);
749 region->address = address;
752 if((address >= std_heap) && (address <= (void*)((char *)std_heap + STD_HEAP_SIZE))){
754 region->block = ((char*)address - (char*)((xbt_mheap_t)std_heap)->heapbase) / BLOCKSIZE + 1;
756 if(((xbt_mheap_t)std_heap)->heapinfo[region->block].type == 0){
757 region->fragment = -1;
758 ((xbt_mheap_t)std_heap)->heapinfo[region->block].busy_block.ignore = 1;
760 region->fragment = ((uintptr_t) (ADDR2UINT (address) % (BLOCKSIZE))) >> ((xbt_mheap_t)std_heap)->heapinfo[region->block].type;
761 ((xbt_mheap_t)std_heap)->heapinfo[region->block].busy_frag.ignore[region->fragment] = 1;
766 unsigned int cursor = 0;
767 mc_heap_ignore_region_t current_region;
768 xbt_dynar_foreach(mc_heap_comparison_ignore, cursor, current_region){
769 if(current_region->address > address)
773 xbt_dynar_insert_at(mc_heap_comparison_ignore, cursor, ®ion);
781 void MC_ignore_data_bss(void *address, size_t size){
783 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
787 if(mc_data_bss_comparison_ignore == NULL)
788 mc_data_bss_comparison_ignore = xbt_dynar_new(sizeof(mc_data_bss_ignore_variable_t), NULL);
790 if(xbt_dynar_is_empty(mc_data_bss_comparison_ignore)){
792 mc_data_bss_ignore_variable_t var = NULL;
793 var = xbt_new0(s_mc_data_bss_ignore_variable_t, 1);
794 var->address = address;
797 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, 0, &var);
801 unsigned int cursor = 0;
803 int end = xbt_dynar_length(mc_data_bss_comparison_ignore) - 1;
804 mc_data_bss_ignore_variable_t current_var = NULL;
807 cursor = (start + end) / 2;
808 current_var = (mc_data_bss_ignore_variable_t)xbt_dynar_get_as(mc_data_bss_comparison_ignore, cursor, mc_data_bss_ignore_variable_t);
809 if(current_var->address == address){
815 if(current_var->address < address)
817 if(current_var->address > address)
821 mc_data_bss_ignore_variable_t var = NULL;
822 var = xbt_new0(s_mc_data_bss_ignore_variable_t, 1);
823 var->address = address;
826 if(current_var->address < address)
827 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, cursor + 1, &var);
829 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, cursor, &var);
839 static size_t data_bss_ignore_size(void *address){
840 unsigned int cursor = 0;
842 int end = xbt_dynar_length(mc_data_bss_comparison_ignore) - 1;
843 mc_data_bss_ignore_variable_t var;
846 cursor = (start + end) / 2;
847 var = (mc_data_bss_ignore_variable_t)xbt_dynar_get_as(mc_data_bss_comparison_ignore, cursor, mc_data_bss_ignore_variable_t);
848 if(var->address == address)
850 if(var->address < address){
851 if((void *)((char *)var->address + var->size) > address)
852 return (char *)var->address + var->size - (char*)address;
856 if(var->address > address)
865 void MC_ignore_stack(const char *var_name, const char *frame){
867 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
871 if(mc_stack_comparison_ignore == NULL)
872 mc_stack_comparison_ignore = xbt_dynar_new(sizeof(mc_stack_ignore_variable_t), NULL);
874 if(xbt_dynar_is_empty(mc_stack_comparison_ignore)){
876 mc_stack_ignore_variable_t var = NULL;
877 var = xbt_new0(s_mc_stack_ignore_variable_t, 1);
878 var->var_name = strdup(var_name);
879 var->frame = strdup(frame);
881 xbt_dynar_insert_at(mc_stack_comparison_ignore, 0, &var);
885 unsigned int cursor = 0;
887 int end = xbt_dynar_length(mc_stack_comparison_ignore) - 1;
888 mc_stack_ignore_variable_t current_var = NULL;
891 cursor = (start + end) / 2;
892 current_var = (mc_stack_ignore_variable_t)xbt_dynar_get_as(mc_stack_comparison_ignore, cursor, mc_stack_ignore_variable_t);
893 if(strcmp(current_var->frame, frame) == 0){
894 if(strcmp(current_var->var_name, var_name) == 0){
900 if(strcmp(current_var->var_name, var_name) < 0)
902 if(strcmp(current_var->var_name, var_name) > 0)
905 if(strcmp(current_var->frame, frame) < 0)
907 if(strcmp(current_var->frame, frame) > 0)
911 mc_stack_ignore_variable_t var = NULL;
912 var = xbt_new0(s_mc_stack_ignore_variable_t, 1);
913 var->var_name = strdup(var_name);
914 var->frame = strdup(frame);
916 if(strcmp(current_var->frame, frame) < 0)
917 xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor + 1, &var);
919 xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor, &var);
930 void MC_new_stack_area(void *stack, char *name, void* context, size_t size){
932 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
935 if(stacks_areas == NULL)
936 stacks_areas = xbt_dynar_new(sizeof(stack_region_t), NULL);
938 stack_region_t region = NULL;
939 region = xbt_new0(s_stack_region_t, 1);
940 region->address = stack;
941 region->process_name = strdup(name);
942 region->context = context;
944 xbt_dynar_push(stacks_areas, ®ion);
952 /************ DWARF ***********/
954 xbt_dict_t MC_get_location_list(const char *elf_file){
956 char *command = bprintf("objdump -Wo %s", elf_file);
958 FILE *fp = popen(command, "r");
961 perror("popen for objdump failed");
965 int debug = 0; /*Detect if the program has been compiled with -g */
967 xbt_dict_t location_list = xbt_dict_new_homogeneous(NULL);
968 char *line = NULL, *loc_expr = NULL;
972 xbt_dynar_t split = NULL;
974 while ((read = getline(&line, &n, fp)) != -1) {
976 /* Wipeout the new line character */
977 line[read - 1] = '\0';
979 xbt_str_trim(line, NULL);
984 if(strlen(line) == 0)
989 if(strncmp(line, elf_file, strlen(elf_file)) == 0)
992 if(strncmp(line, "Contents", 8) == 0)
995 if(strncmp(line, "Offset", 6) == 0){
1002 XBT_INFO("Your program must be compiled with -g");
1006 xbt_dynar_t loclist = xbt_dynar_new(sizeof(dw_location_entry_t), NULL);
1008 xbt_str_strip_spaces(line);
1009 split = xbt_str_split(line, " ");
1011 while(read != -1 && strcmp("<End", (char *)xbt_dynar_get_as(split, 1, char *)) != 0){
1013 dw_location_entry_t new_entry = xbt_new0(s_dw_location_entry_t, 1);
1014 new_entry->lowpc = strtoul((char *)xbt_dynar_get_as(split, 1, char *), NULL, 16);
1015 new_entry->highpc = strtoul((char *)xbt_dynar_get_as(split, 2, char *), NULL, 16);
1018 while(cursor_remove < 3){
1019 xbt_dynar_remove_at(split, 0, NULL);
1023 loc_expr = xbt_str_join(split, " ");
1024 xbt_str_ltrim(loc_expr, "(");
1025 xbt_str_rtrim(loc_expr, ")");
1026 new_entry->location = get_location(NULL, loc_expr);
1028 xbt_dynar_push(loclist, &new_entry);
1030 xbt_dynar_free(&split);
1033 read = getline(&line, &n, fp);
1035 line[read - 1] = '\0';
1036 xbt_str_strip_spaces(line);
1037 split = xbt_str_split(line, " ");
1043 char *key = bprintf("%d", (int)strtoul((char *)xbt_dynar_get_as(split, 0, char *), NULL, 16));
1044 xbt_dict_set(location_list, key, loclist, NULL);
1047 xbt_dynar_free(&split);
1055 return location_list;
1058 static dw_frame_t get_frame_by_offset(xbt_dict_t all_variables, unsigned long int offset){
1060 xbt_dict_cursor_t cursor = NULL;
1064 xbt_dict_foreach(all_variables, cursor, name, res) {
1065 if(offset >= res->start && offset < res->end){
1066 xbt_dict_cursor_free(&cursor);
1071 xbt_dict_cursor_free(&cursor);
1076 void MC_get_local_variables(const char *elf_file, xbt_dict_t location_list, xbt_dict_t *all_variables){
1078 char *command = bprintf("objdump -Wi %s", elf_file);
1080 FILE *fp = popen(command, "r");
1083 perror("popen for objdump failed");
1085 char *line = NULL, *origin, *abstract_origin, *current_frame = NULL;
1088 int valid_variable = 1;
1089 char *node_type = NULL, *location_type = NULL, *variable_name = NULL, *loc_expr = NULL;
1090 xbt_dynar_t split = NULL, split2 = NULL;
1092 xbt_dict_t variables_origin = xbt_dict_new_homogeneous(NULL);
1093 xbt_dict_t subprograms_origin = xbt_dict_new_homogeneous(NULL);
1094 char *subprogram_name = NULL, *subprogram_start = NULL, *subprogram_end = NULL;
1095 int new_frame = 0, new_variable = 0;
1096 dw_frame_t variable_frame, subroutine_frame = NULL;
1098 read = getline(&line, &n, fp);
1100 while (read != -1) {
1103 read = getline(&line, &n, fp);
1107 /* Wipeout the new line character */
1108 line[read - 1] = '\0';
1110 if(strlen(line) == 0){
1111 read = getline(&line, &n, fp);
1115 xbt_str_ltrim(line, NULL);
1116 xbt_str_strip_spaces(line);
1119 read = getline(&line, &n, fp);
1123 xbt_dynar_free(&split);
1124 split = xbt_str_split(line, " ");
1127 node_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1129 if(strcmp(node_type, "(DW_TAG_subprogram)") == 0){ /* New frame */
1131 dw_frame_t frame = NULL;
1133 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1134 subprogram_start = strdup(strtok(NULL, "<"));
1135 xbt_str_rtrim(subprogram_start, ">:");
1137 read = getline(&line, &n, fp);
1142 read = getline(&line, &n, fp);
1146 /* Wipeout the new line character */
1147 line[read - 1] = '\0';
1149 if(strlen(line) == 0){
1150 read = getline(&line, &n, fp);
1154 xbt_dynar_free(&split);
1155 xbt_str_rtrim(line, NULL);
1156 xbt_str_strip_spaces(line);
1157 split = xbt_str_split(line, " ");
1159 node_type = xbt_dynar_get_as(split, 1, char *);
1161 if(strncmp(node_type, "DW_AT_", 6) != 0)
1164 if(strcmp(node_type, "DW_AT_sibling") == 0){
1166 subprogram_end = strdup(xbt_dynar_get_as(split, 3, char*));
1167 xbt_str_ltrim(subprogram_end, "<0x");
1168 xbt_str_rtrim(subprogram_end, ">");
1170 }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){ /* Frame already in dict */
1173 abstract_origin = strdup(xbt_dynar_get_as(split, 2, char*));
1174 xbt_str_ltrim(abstract_origin, "<0x");
1175 xbt_str_rtrim(abstract_origin, ">");
1176 subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, abstract_origin);
1177 frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
1178 xbt_free(abstract_origin);
1180 }else if(strcmp(node_type, "DW_AT_name") == 0){
1183 xbt_free(current_frame);
1184 frame = xbt_new0(s_dw_frame_t, 1);
1185 frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1186 frame->variables = xbt_dict_new_homogeneous(NULL);
1187 frame->frame_base = xbt_new0(s_dw_location_t, 1);
1188 current_frame = strdup(frame->name);
1190 xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
1192 }else if(strcmp(node_type, "DW_AT_frame_base") == 0){
1194 location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1196 if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
1198 frame->frame_base = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
1202 xbt_str_strip_spaces(line);
1203 split2 = xbt_str_split(line, "(");
1204 xbt_dynar_remove_at(split2, 0, NULL);
1205 loc_expr = xbt_str_join(split2, " ");
1206 xbt_str_rtrim(loc_expr, ")");
1207 frame->frame_base = get_location(NULL, loc_expr);
1208 xbt_dynar_free(&split2);
1213 }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
1216 frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1218 }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
1221 frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1223 }else if(strcmp(node_type, "DW_AT_MIPS_linkage_name:") == 0){
1225 xbt_free(frame->name);
1226 xbt_free(current_frame);
1227 frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1228 current_frame = strdup(frame->name);
1229 xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
1233 read = getline(&line, &n, fp);
1238 frame->start = strtoul(subprogram_start, NULL, 16);
1239 if(subprogram_end != NULL)
1240 frame->end = strtoul(subprogram_end, NULL, 16);
1241 xbt_dict_set(*all_variables, frame->name, frame, NULL);
1244 xbt_free(subprogram_start);
1245 if(subprogram_end != NULL){
1246 xbt_free(subprogram_end);
1247 subprogram_end = NULL;
1251 }else if(strcmp(node_type, "(DW_TAG_variable)") == 0){ /* New variable */
1253 dw_local_variable_t var = NULL;
1255 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1256 origin = strdup(strtok(NULL, "<"));
1257 xbt_str_rtrim(origin, ">:");
1259 read = getline(&line, &n, fp);
1264 read = getline(&line, &n, fp);
1268 /* Wipeout the new line character */
1269 line[read - 1] = '\0';
1271 if(strlen(line) == 0){
1272 read = getline(&line, &n, fp);
1276 xbt_dynar_free(&split);
1277 xbt_str_rtrim(line, NULL);
1278 xbt_str_strip_spaces(line);
1279 split = xbt_str_split(line, " ");
1281 node_type = xbt_dynar_get_as(split, 1, char *);
1283 if(strncmp(node_type, "DW_AT_", 6) != 0)
1286 if(strcmp(node_type, "DW_AT_name") == 0){
1289 var = xbt_new0(s_dw_local_variable_t, 1);
1290 var->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1292 xbt_dict_set(variables_origin, origin, var->name, NULL);
1294 }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
1297 abstract_origin = xbt_dynar_get_as(split, 2, char *);
1298 xbt_str_ltrim(abstract_origin, "<0x");
1299 xbt_str_rtrim(abstract_origin, ">");
1301 variable_name = (char *)xbt_dict_get_or_null(variables_origin, abstract_origin);
1302 variable_frame = get_frame_by_offset(*all_variables, strtoul(abstract_origin, NULL, 16));
1303 var = xbt_dict_get_or_null(variable_frame->variables, variable_name);
1305 }else if(strcmp(node_type, "DW_AT_location") == 0){
1307 if(valid_variable == 1 && var != NULL){
1309 var->location = xbt_new0(s_dw_location_t, 1);
1311 location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1313 if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
1315 var->location = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
1319 xbt_str_strip_spaces(line);
1320 split2 = xbt_str_split(line, "(");
1321 xbt_dynar_remove_at(split2, 0, NULL);
1322 loc_expr = xbt_str_join(split2, " ");
1323 xbt_str_rtrim(loc_expr, ")");
1324 var->location = get_location(NULL, loc_expr);
1325 xbt_dynar_free(&split2);
1332 }else if(strcmp(node_type, "DW_AT_external") == 0){
1338 read = getline(&line, &n, fp);
1342 if(new_variable == 1 && valid_variable == 1){
1344 variable_frame = xbt_dict_get_or_null(*all_variables, current_frame);
1345 xbt_dict_set(variable_frame->variables, var->name, var, NULL);
1351 }else if(strcmp(node_type, "(DW_TAG_inlined_subroutine)") == 0){
1353 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1354 origin = strdup(strtok(NULL, "<"));
1355 xbt_str_rtrim(origin, ">:");
1357 read = getline(&line, &n, fp);
1361 /* Wipeout the new line character */
1362 line[read - 1] = '\0';
1365 read = getline(&line, &n, fp);
1369 if(strlen(line) == 0){
1370 read = getline(&line, &n, fp);
1374 xbt_dynar_free(&split);
1375 xbt_str_rtrim(line, NULL);
1376 xbt_str_strip_spaces(line);
1377 split = xbt_str_split(line, " ");
1379 if(strncmp(xbt_dynar_get_as(split, 1, char *), "DW_AT_", 6) != 0)
1382 node_type = xbt_dynar_get_as(split, 1, char *);
1384 if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
1386 origin = xbt_dynar_get_as(split, 2, char *);
1387 xbt_str_ltrim(origin, "<0x");
1388 xbt_str_rtrim(origin, ">");
1390 subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, origin);
1391 subroutine_frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
1393 }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
1395 subroutine_frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1397 }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
1399 subroutine_frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1402 read = getline(&line, &n, fp);
1408 read = getline(&line, &n, fp);
1414 xbt_dynar_free(&split);
1421 static dw_location_t get_location(xbt_dict_t location_list, char *expr){
1423 dw_location_t loc = xbt_new0(s_dw_location_t, 1);
1425 if(location_list != NULL){
1427 char *key = bprintf("%d", (int)strtoul(expr, NULL, 16));
1428 loc->type = e_dw_loclist;
1429 loc->location.loclist = (xbt_dynar_t)xbt_dict_get_or_null(location_list, key);
1430 if(loc->location.loclist == NULL)
1431 XBT_INFO("Key not found in loclist");
1438 char *tok = NULL, *tok2 = NULL;
1440 xbt_dynar_t tokens1 = xbt_str_split(expr, ";");
1441 xbt_dynar_t tokens2;
1443 loc->type = e_dw_compose;
1444 loc->location.compose = xbt_dynar_new(sizeof(dw_location_t), NULL);
1446 while(cursor < xbt_dynar_length(tokens1)){
1448 tok = xbt_dynar_get_as(tokens1, cursor, char*);
1449 tokens2 = xbt_str_split(tok, " ");
1450 tok2 = xbt_dynar_get_as(tokens2, 0, char*);
1452 if(strncmp(tok2, "DW_OP_reg", 9) == 0){
1453 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1454 new_element->type = e_dw_register;
1455 new_element->location.reg = atoi(strtok(tok2, "DW_OP_reg"));
1456 xbt_dynar_push(loc->location.compose, &new_element);
1457 }else if(strcmp(tok2, "DW_OP_fbreg:") == 0){
1458 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1459 new_element->type = e_dw_fbregister_op;
1460 new_element->location.fbreg_op = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1461 xbt_dynar_push(loc->location.compose, &new_element);
1462 }else if(strncmp(tok2, "DW_OP_breg", 10) == 0){
1463 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1464 new_element->type = e_dw_bregister_op;
1465 new_element->location.breg_op.reg = atoi(strtok(tok2, "DW_OP_breg"));
1466 new_element->location.breg_op.offset = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1467 xbt_dynar_push(loc->location.compose, &new_element);
1468 }else if(strncmp(tok2, "DW_OP_lit", 9) == 0){
1469 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1470 new_element->type = e_dw_lit;
1471 new_element->location.lit = atoi(strtok(tok2, "DW_OP_lit"));
1472 xbt_dynar_push(loc->location.compose, &new_element);
1473 }else if(strcmp(tok2, "DW_OP_piece:") == 0){
1474 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1475 new_element->type = e_dw_piece;
1476 new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1477 /*if(strlen(xbt_dynar_get_as(tokens2, 1, char*)) > 1)
1478 new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1480 new_element->location.piece = xbt_dynar_get_as(tokens2, 1, char*)[0] - '0';*/
1481 xbt_dynar_push(loc->location.compose, &new_element);
1482 }else if(strcmp(tok2, "DW_OP_plus_uconst:") == 0){
1483 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1484 new_element->type = e_dw_plus_uconst;
1485 new_element->location.plus_uconst = atoi(xbt_dynar_get_as(tokens2, 1, char *));
1486 xbt_dynar_push(loc->location.compose, &new_element);
1487 }else if(strcmp(tok, "DW_OP_abs") == 0 ||
1488 strcmp(tok, "DW_OP_and") == 0 ||
1489 strcmp(tok, "DW_OP_div") == 0 ||
1490 strcmp(tok, "DW_OP_minus") == 0 ||
1491 strcmp(tok, "DW_OP_mod") == 0 ||
1492 strcmp(tok, "DW_OP_mul") == 0 ||
1493 strcmp(tok, "DW_OP_neg") == 0 ||
1494 strcmp(tok, "DW_OP_not") == 0 ||
1495 strcmp(tok, "DW_OP_or") == 0 ||
1496 strcmp(tok, "DW_OP_plus") == 0){
1497 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1498 new_element->type = e_dw_arithmetic;
1499 new_element->location.arithmetic = strdup(strtok(tok2, "DW_OP_"));
1500 xbt_dynar_push(loc->location.compose, &new_element);
1501 }else if(strcmp(tok, "DW_OP_stack_value") == 0){
1502 }else if(strcmp(tok2, "DW_OP_deref_size:") == 0){
1503 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1504 new_element->type = e_dw_deref;
1505 new_element->location.deref_size = (unsigned int short) atoi(xbt_dynar_get_as(tokens2, 1, char*));
1506 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1507 new_element->location.deref_size = atoi(xbt_dynar_get_as(tokens, cursor, char*));
1509 new_element->location.deref_size = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
1510 xbt_dynar_push(loc->location.compose, &new_element);
1511 }else if(strcmp(tok, "DW_OP_deref") == 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 = sizeof(void *);
1515 xbt_dynar_push(loc->location.compose, &new_element);
1516 }else if(strcmp(tok2, "DW_OP_constu:") == 0){
1517 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1518 new_element->type = e_dw_uconstant;
1519 new_element->location.uconstant.bytes = 1;
1520 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1521 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1522 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens, cursor, char*)));
1524 new_element->location.uconstant.value = (unsigned long int)(xbt_dynar_get_as(tokens, cursor, char*)[0] - '0');*/
1525 xbt_dynar_push(loc->location.compose, &new_element);
1526 }else if(strcmp(tok2, "DW_OP_consts:") == 0){
1527 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1528 new_element->type = e_dw_sconstant;
1529 new_element->location.sconstant.bytes = 1;
1530 new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1531 xbt_dynar_push(loc->location.compose, &new_element);
1532 }else if(strcmp(tok2, "DW_OP_const1u:") == 0 ||
1533 strcmp(tok2, "DW_OP_const2u:") == 0 ||
1534 strcmp(tok2, "DW_OP_const4u:") == 0 ||
1535 strcmp(tok2, "DW_OP_const8u:") == 0){
1536 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1537 new_element->type = e_dw_uconstant;
1538 new_element->location.uconstant.bytes = tok2[11] - '0';
1539 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1540 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1541 new_element->location.constant.value = atoi(xbt_dynar_get_as(tokens, cursor, char*));
1543 new_element->location.constant.value = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
1544 xbt_dynar_push(loc->location.compose, &new_element);
1545 }else if(strcmp(tok, "DW_OP_const1s") == 0 ||
1546 strcmp(tok, "DW_OP_const2s") == 0 ||
1547 strcmp(tok, "DW_OP_const4s") == 0 ||
1548 strcmp(tok, "DW_OP_const8s") == 0){
1549 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1550 new_element->type = e_dw_sconstant;
1551 new_element->location.sconstant.bytes = tok2[11] - '0';
1552 new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1553 xbt_dynar_push(loc->location.compose, &new_element);
1555 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1556 new_element->type = e_dw_unsupported;
1557 xbt_dynar_push(loc->location.compose, &new_element);
1561 xbt_dynar_free(&tokens2);
1565 xbt_dynar_free(&tokens1);
1574 void print_local_variables(xbt_dict_t list){
1576 dw_location_entry_t entry;
1577 dw_location_t location_entry;
1578 unsigned int cursor3 = 0, cursor4 = 0;
1579 xbt_dict_cursor_t cursor = 0, cursor2 = 0;
1581 char *frame_name, *variable_name;
1582 dw_frame_t current_frame;
1583 dw_local_variable_t current_variable;
1585 xbt_dict_foreach(list, cursor, frame_name, current_frame){
1586 fprintf(stderr, "Frame name : %s\n", current_frame->name);
1587 fprintf(stderr, "Location type : %d\n", current_frame->frame_base->type);
1588 xbt_dict_foreach((xbt_dict_t)current_frame->variables, cursor2, variable_name, current_variable){
1589 fprintf(stderr, "Name : %s\n", current_variable->name);
1590 if(current_variable->location == NULL)
1592 fprintf(stderr, "Location type : %d\n", current_variable->location->type);
1593 switch(current_variable->location->type){
1595 xbt_dynar_foreach(current_variable->location->location.loclist, cursor3, entry){
1596 fprintf(stderr, "Lowpc : %lx, Highpc : %lx,", entry->lowpc, entry->highpc);
1597 switch(entry->location->type){
1598 case e_dw_register :
1599 fprintf(stderr, " Location : in register %d\n", entry->location->location.reg);
1601 case e_dw_bregister_op:
1602 fprintf(stderr, " Location : Add %d to the value in register %d\n", entry->location->location.breg_op.offset, entry->location->location.breg_op.reg);
1605 fprintf(stderr, "Value already kwnown : %d\n", entry->location->location.lit);
1607 case e_dw_fbregister_op:
1608 fprintf(stderr, " Location : %d bytes from logical frame pointer\n", entry->location->location.fbreg_op);
1611 fprintf(stderr, " Location :\n");
1612 xbt_dynar_foreach(entry->location->location.compose, cursor4, location_entry){
1613 switch(location_entry->type){
1614 case e_dw_register :
1615 fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
1617 case e_dw_bregister_op:
1618 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);
1621 fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
1623 case e_dw_fbregister_op:
1624 fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
1627 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);
1629 case e_dw_arithmetic :
1630 fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
1633 fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
1635 case e_dw_uconstant :
1636 fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
1638 case e_dw_sconstant :
1639 fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
1642 fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
1648 fprintf(stderr, "Location type not supported\n");
1655 fprintf(stderr, "Location :\n");
1656 xbt_dynar_foreach(current_variable->location->location.compose, cursor4, location_entry){
1657 switch(location_entry->type){
1658 case e_dw_register :
1659 fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
1661 case e_dw_bregister_op:
1662 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);
1665 fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
1667 case e_dw_fbregister_op:
1668 fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
1671 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);
1673 case e_dw_arithmetic :
1674 fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
1677 fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
1679 case e_dw_uconstant :
1680 fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
1682 case e_dw_sconstant :
1683 fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
1686 fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
1692 fprintf(stderr, "Location type not supported\n");
1700 static void MC_get_global_variables(char *elf_file){
1704 char *command = bprintf("objdump -t -j .data -j .bss %s", elf_file);
1706 fp = popen(command, "r");
1709 perror("popen failed");
1713 if(mc_global_variables == NULL)
1714 mc_global_variables = xbt_dynar_new(sizeof(global_variable_t), global_variable_free_voidp);
1720 xbt_dynar_t line_tokens = NULL;
1721 unsigned long offset;
1723 int type = strcmp(elf_file, xbt_binary_name); /* 0 = binary, other = libsimgrid */
1725 while ((read = getline(&line, &n, fp)) != -1){
1730 /* Wipeout the new line character */
1731 line[read - 1] = '\0';
1733 xbt_str_strip_spaces(line);
1734 xbt_str_ltrim(line, NULL);
1736 line_tokens = xbt_str_split(line, NULL);
1738 if(xbt_dynar_length(line_tokens) <= 4 || strcmp(xbt_dynar_get_as(line_tokens, 0, char *), "SYMBOL") == 0)
1741 if((strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "__gcov", 6) == 0)
1742 || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "gcov", 4) == 0)
1743 || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), ".data") == 0)
1744 || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), ".bss") == 0)
1745 || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "stderr", 6) == 0)
1746 || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "counter", 7) == 0)
1747 || ((size_t)strtoul(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 2, char*), NULL, 16) == 0))
1750 global_variable_t var = xbt_new0(s_global_variable_t, 1);
1753 var->address = (void *)strtoul(xbt_dynar_get_as(line_tokens, 0, char*), NULL, 16);
1755 offset = strtoul(xbt_dynar_get_as(line_tokens, 0, char*), NULL, 16);
1756 var->address = (char *)start_text_libsimgrid+offset;
1759 var->size = (size_t)strtoul(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 2, char*), NULL, 16);
1760 var->name = strdup(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*));
1762 if(data_bss_ignore_size(var->address) > 0)
1763 global_variable_free(var);
1765 xbt_dynar_push(mc_global_variables, &var);
1767 xbt_dynar_free(&line_tokens);
1777 void global_variable_free(global_variable_t v){
1782 void global_variable_free_voidp(void *v){
1783 global_variable_free((global_variable_t) * (void **) v);