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 /* Get .plt section (start and end addresses) for data libsimgrid and data program comparison */
179 get_libsimgrid_plt_section();
180 get_binary_plt_section();
182 MC_ignore_data_bss(&end_raw_heap, sizeof(end_raw_heap));
184 /* Get global variables */
185 MC_get_global_variables(xbt_binary_name);
186 MC_get_global_variables(libsimgrid_path);
190 /* Ignore some variables from xbt/ex.h used by exception e for stacks comparison */
191 MC_ignore_stack("e", "*");
192 MC_ignore_stack("__ex_cleanup", "*");
193 MC_ignore_stack("__ex_mctx_en", "*");
194 MC_ignore_stack("__ex_mctx_me", "*");
195 MC_ignore_stack("__xbt_ex_ctx_ptr", "*");
196 MC_ignore_stack("_log_ev", "*");
197 MC_ignore_stack("_throw_ctx", "*");
198 MC_ignore_stack("ctx", "*");
205 void MC_modelcheck_safety(void)
207 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
209 /* Check if MC is already initialized */
210 if (initial_state_safety)
213 mc_time = xbt_new0(double, simix_process_maxpid);
215 /* Initialize the data structures that must be persistent across every
216 iteration of the model-checker (in RAW memory) */
220 /* Initialize statistics */
221 mc_stats = xbt_new0(s_mc_stats_t, 1);
222 mc_stats->state_size = 1;
224 /* Create exploration stack */
225 mc_stack_safety = xbt_fifo_new();
229 if(_sg_mc_visited > 0){
233 MC_init_memory_map_info();
234 get_libsimgrid_plt_section();
235 get_binary_plt_section();
242 /* Save the initial state */
243 initial_state_safety = xbt_new0(s_mc_global_t, 1);
244 initial_state_safety->snapshot = MC_take_snapshot();
255 void MC_modelcheck_liveness(){
257 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
263 /* Initialize statistics */
264 mc_stats_pair = xbt_new0(s_mc_stats_pair_t, 1);
266 /* Create exploration stack */
267 mc_stack_liveness = xbt_fifo_new();
269 initial_state_liveness = xbt_new0(s_mc_global_t, 1);
276 MC_print_statistics_pairs(mc_stats_pair);
292 int MC_random(int min, int max)
294 /*FIXME: return mc_current_state->executed_transition->random.value;*/
299 * \brief Schedules all the process that are ready to run
301 void MC_wait_for_requests(void)
303 smx_process_t process;
307 while (!xbt_dynar_is_empty(simix_global->process_to_run)) {
308 SIMIX_process_runall();
309 xbt_dynar_foreach(simix_global->process_that_ran, iter, process) {
310 req = &process->simcall;
311 if (req->call != SIMCALL_NONE && !MC_request_is_visible(req))
312 SIMIX_simcall_pre(req, 0);
317 int MC_deadlock_check()
319 int deadlock = FALSE;
320 smx_process_t process;
321 if(xbt_swag_size(simix_global->process_list)){
323 xbt_swag_foreach(process, simix_global->process_list){
324 if(process->simcall.call != SIMCALL_NONE
325 && MC_request_is_enabled(&process->simcall)){
335 * \brief Re-executes from the state at position start all the transitions indicated by
336 * a given model-checker stack.
337 * \param stack The stack with the transitions to execute.
338 * \param start Start index to begin the re-execution.
340 void MC_replay(xbt_fifo_t stack, int start)
342 int raw_mem = (mmalloc_get_current_heap() == raw_heap);
346 smx_simcall_t req = NULL, saved_req = NULL;
347 xbt_fifo_item_t item, start_item;
350 XBT_DEBUG("**** Begin Replay ****");
353 /* Restore the initial state */
354 MC_restore_snapshot(initial_state_safety->snapshot);
355 /* At the moment of taking the snapshot the raw heap was set, so restoring
356 * it will set it back again, we have to unset it to continue */
360 start_item = xbt_fifo_get_last_item(stack);
363 start_item = xbt_fifo_get_prev_item(start_item);
368 /* Traverse the stack from the state at position start and re-execute the transitions */
369 for (item = start_item;
370 item != xbt_fifo_get_first_item(stack);
371 item = xbt_fifo_get_prev_item(item)) {
373 state = (mc_state_t) xbt_fifo_get_item_content(item);
374 saved_req = MC_state_get_executed_request(state, &value);
377 /* because we got a copy of the executed request, we have to fetch the
378 real one, pointed by the request field of the issuer process */
379 req = &saved_req->issuer->simcall;
381 /* Debug information */
382 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
383 req_str = MC_request_to_string(req, value);
384 XBT_DEBUG("Replay: %s (%p)", req_str, state);
389 SIMIX_simcall_pre(req, value);
390 MC_wait_for_requests();
392 /* Update statistics */
393 mc_stats->visited_states++;
394 mc_stats->executed_transitions++;
396 XBT_DEBUG("**** End Replay ****");
406 void MC_replay_liveness(xbt_fifo_t stack, int all_stack)
409 initial_state_liveness->raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
413 smx_simcall_t req = NULL, saved_req = NULL;
414 xbt_fifo_item_t item;
416 mc_pair_stateless_t pair;
419 XBT_DEBUG("**** Begin Replay ****");
421 /* Restore the initial state */
422 MC_restore_snapshot(initial_state_liveness->snapshot);
424 /* At the moment of taking the snapshot the raw heap was set, so restoring
425 * it will set it back again, we have to unset it to continue */
426 if(!initial_state_liveness->raw_mem_set)
431 item = xbt_fifo_get_last_item(stack);
433 while(depth <= xbt_fifo_size(stack)){
435 pair = (mc_pair_stateless_t) xbt_fifo_get_item_content(item);
436 state = (mc_state_t) pair->graph_state;
438 if(pair->requests > 0){
440 saved_req = MC_state_get_executed_request(state, &value);
441 //XBT_DEBUG("SavedReq->call %u", saved_req->call);
443 if(saved_req != NULL){
444 /* because we got a copy of the executed request, we have to fetch the
445 real one, pointed by the request field of the issuer process */
446 req = &saved_req->issuer->simcall;
447 //XBT_DEBUG("Req->call %u", req->call);
449 /* Debug information */
450 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
451 req_str = MC_request_to_string(req, value);
452 XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
458 SIMIX_simcall_pre(req, value);
459 MC_wait_for_requests();
464 /* Update statistics */
465 mc_stats_pair->visited_pairs++;
467 item = xbt_fifo_get_prev_item(item);
472 /* Traverse the stack from the initial state and re-execute the transitions */
473 for (item = xbt_fifo_get_last_item(stack);
474 item != xbt_fifo_get_first_item(stack);
475 item = xbt_fifo_get_prev_item(item)) {
477 pair = (mc_pair_stateless_t) xbt_fifo_get_item_content(item);
478 state = (mc_state_t) pair->graph_state;
480 if(pair->requests > 0){
482 saved_req = MC_state_get_executed_request(state, &value);
483 //XBT_DEBUG("SavedReq->call %u", saved_req->call);
485 if(saved_req != NULL){
486 /* because we got a copy of the executed request, we have to fetch the
487 real one, pointed by the request field of the issuer process */
488 req = &saved_req->issuer->simcall;
489 //XBT_DEBUG("Req->call %u", req->call);
491 /* Debug information */
492 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
493 req_str = MC_request_to_string(req, value);
494 XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
500 SIMIX_simcall_pre(req, value);
501 MC_wait_for_requests();
506 /* Update statistics */
507 mc_stats_pair->visited_pairs++;
511 XBT_DEBUG("**** End Replay ****");
513 if(initial_state_liveness->raw_mem_set)
521 * \brief Dumps the contents of a model-checker's stack and shows the actual
523 * \param stack The stack to dump
525 void MC_dump_stack_safety(xbt_fifo_t stack)
528 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
530 MC_show_stack_safety(stack);
532 if(!_sg_mc_checkpoint){
537 while ((state = (mc_state_t) xbt_fifo_pop(stack)) != NULL)
538 MC_state_delete(state);
551 void MC_show_stack_safety(xbt_fifo_t stack)
555 xbt_fifo_item_t item;
557 char *req_str = NULL;
559 for (item = xbt_fifo_get_last_item(stack);
560 (item ? (state = (mc_state_t) (xbt_fifo_get_item_content(item)))
561 : (NULL)); item = xbt_fifo_get_prev_item(item)) {
562 req = MC_state_get_executed_request(state, &value);
564 req_str = MC_request_to_string(req, value);
565 XBT_INFO("%s", req_str);
571 void MC_show_deadlock(smx_simcall_t req)
573 /*char *req_str = NULL;*/
574 XBT_INFO("**************************");
575 XBT_INFO("*** DEAD-LOCK DETECTED ***");
576 XBT_INFO("**************************");
577 XBT_INFO("Locked request:");
578 /*req_str = MC_request_to_string(req);
579 XBT_INFO("%s", req_str);
581 XBT_INFO("Counter-example execution trace:");
582 MC_dump_stack_safety(mc_stack_safety);
586 void MC_show_stack_liveness(xbt_fifo_t stack){
588 mc_pair_stateless_t pair;
589 xbt_fifo_item_t item;
591 char *req_str = NULL;
593 for (item = xbt_fifo_get_last_item(stack);
594 (item ? (pair = (mc_pair_stateless_t) (xbt_fifo_get_item_content(item)))
595 : (NULL)); item = xbt_fifo_get_prev_item(item)) {
596 req = MC_state_get_executed_request(pair->graph_state, &value);
598 if(pair->requests>0){
599 req_str = MC_request_to_string(req, value);
600 XBT_INFO("%s", req_str);
603 XBT_INFO("End of system requests but evolution in Büchi automaton");
609 void MC_dump_stack_liveness(xbt_fifo_t stack){
611 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
613 mc_pair_stateless_t pair;
616 while ((pair = (mc_pair_stateless_t) xbt_fifo_pop(stack)) != NULL)
617 pair_stateless_free(pair);
626 void MC_print_statistics(mc_stats_t stats)
628 //XBT_INFO("State space size ~= %lu", stats->state_size);
629 XBT_INFO("Expanded states = %lu", stats->expanded_states);
630 XBT_INFO("Visited states = %lu", stats->visited_states);
631 XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
632 XBT_INFO("Expanded / Visited = %lf",
633 (double) stats->visited_states / stats->expanded_states);
634 /*XBT_INFO("Exploration coverage = %lf",
635 (double)stats->expanded_states / stats->state_size); */
638 void MC_print_statistics_pairs(mc_stats_pair_t stats)
640 XBT_INFO("Expanded pairs = %lu", stats->expanded_pairs);
641 XBT_INFO("Visited pairs = %lu", stats->visited_pairs);
642 //XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
643 XBT_INFO("Expanded / Visited = %lf",
644 (double) stats->visited_pairs / stats->expanded_pairs);
646 if(mmalloc_get_current_heap() == raw_heap)
650 void MC_assert(int prop)
652 if (MC_is_active() && !prop){
653 XBT_INFO("**************************");
654 XBT_INFO("*** PROPERTY NOT VALID ***");
655 XBT_INFO("**************************");
656 XBT_INFO("Counter-example execution trace:");
657 MC_dump_stack_safety(mc_stack_safety);
658 MC_print_statistics(mc_stats);
663 static void MC_assert_pair(int prop){
664 if (MC_is_active() && !prop) {
665 XBT_INFO("**************************");
666 XBT_INFO("*** PROPERTY NOT VALID ***");
667 XBT_INFO("**************************");
668 //XBT_INFO("Counter-example execution trace:");
669 MC_show_stack_liveness(mc_stack_liveness);
670 //MC_dump_snapshot_stack(mc_snapshot_stack);
671 MC_print_statistics_pairs(mc_stats_pair);
676 void MC_process_clock_add(smx_process_t process, double amount)
678 mc_time[process->pid] += amount;
681 double MC_process_clock_get(smx_process_t process)
685 return mc_time[process->pid];
693 void MC_automaton_load(const char *file){
695 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
699 if (_mc_property_automaton == NULL)
700 _mc_property_automaton = xbt_automaton_new();
702 xbt_automaton_load(_mc_property_automaton,file);
711 void MC_automaton_new_propositional_symbol(const char* id, void* fct) {
713 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
717 if (_mc_property_automaton == NULL)
718 _mc_property_automaton = xbt_automaton_new();
720 xbt_new_propositional_symbol(_mc_property_automaton,id,fct);
729 /************ MC_ignore ***********/
731 void MC_ignore_heap(void *address, size_t size){
733 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
737 if(mc_heap_comparison_ignore == NULL)
738 mc_heap_comparison_ignore = xbt_dynar_new(sizeof(mc_heap_ignore_region_t), NULL);
740 mc_heap_ignore_region_t region = NULL;
741 region = xbt_new0(s_mc_heap_ignore_region_t, 1);
742 region->address = address;
745 if((address >= std_heap) && (address <= (void*)((char *)std_heap + STD_HEAP_SIZE))){
747 region->block = ((char*)address - (char*)((xbt_mheap_t)std_heap)->heapbase) / BLOCKSIZE + 1;
749 if(((xbt_mheap_t)std_heap)->heapinfo[region->block].type == 0){
750 region->fragment = -1;
752 region->fragment = ((uintptr_t) (ADDR2UINT (address) % (BLOCKSIZE))) >> ((xbt_mheap_t)std_heap)->heapinfo[region->block].type;
757 unsigned int cursor = 0;
758 mc_heap_ignore_region_t current_region;
759 xbt_dynar_foreach(mc_heap_comparison_ignore, cursor, current_region){
760 if(current_region->address > address)
764 xbt_dynar_insert_at(mc_heap_comparison_ignore, cursor, ®ion);
772 void MC_ignore_data_bss(void *address, size_t size){
774 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
778 if(mc_data_bss_comparison_ignore == NULL)
779 mc_data_bss_comparison_ignore = xbt_dynar_new(sizeof(mc_data_bss_ignore_variable_t), NULL);
781 if(xbt_dynar_is_empty(mc_data_bss_comparison_ignore)){
783 mc_data_bss_ignore_variable_t var = NULL;
784 var = xbt_new0(s_mc_data_bss_ignore_variable_t, 1);
785 var->address = address;
788 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, 0, &var);
792 unsigned int cursor = 0;
794 int end = xbt_dynar_length(mc_data_bss_comparison_ignore) - 1;
795 mc_data_bss_ignore_variable_t current_var = NULL;
798 cursor = (start + end) / 2;
799 current_var = (mc_data_bss_ignore_variable_t)xbt_dynar_get_as(mc_data_bss_comparison_ignore, cursor, mc_data_bss_ignore_variable_t);
800 if(current_var->address == address){
806 if(current_var->address < address)
808 if(current_var->address > address)
812 mc_data_bss_ignore_variable_t var = NULL;
813 var = xbt_new0(s_mc_data_bss_ignore_variable_t, 1);
814 var->address = address;
817 if(current_var->address < address)
818 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, cursor + 1, &var);
820 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, cursor, &var);
830 static size_t data_bss_ignore_size(void *address){
831 unsigned int cursor = 0;
833 int end = xbt_dynar_length(mc_data_bss_comparison_ignore) - 1;
834 mc_data_bss_ignore_variable_t var;
837 cursor = (start + end) / 2;
838 var = (mc_data_bss_ignore_variable_t)xbt_dynar_get_as(mc_data_bss_comparison_ignore, cursor, mc_data_bss_ignore_variable_t);
839 if(var->address == address)
841 if(var->address < address){
842 if((void *)((char *)var->address + var->size) > address)
843 return (char *)var->address + var->size - (char*)address;
847 if(var->address > address)
856 void MC_ignore_stack(const char *var_name, const char *frame){
858 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
862 if(mc_stack_comparison_ignore == NULL)
863 mc_stack_comparison_ignore = xbt_dynar_new(sizeof(mc_stack_ignore_variable_t), NULL);
865 if(xbt_dynar_is_empty(mc_stack_comparison_ignore)){
867 mc_stack_ignore_variable_t var = NULL;
868 var = xbt_new0(s_mc_stack_ignore_variable_t, 1);
869 var->var_name = strdup(var_name);
870 var->frame = strdup(frame);
872 xbt_dynar_insert_at(mc_stack_comparison_ignore, 0, &var);
876 unsigned int cursor = 0;
878 int end = xbt_dynar_length(mc_stack_comparison_ignore) - 1;
879 mc_stack_ignore_variable_t current_var = NULL;
882 cursor = (start + end) / 2;
883 current_var = (mc_stack_ignore_variable_t)xbt_dynar_get_as(mc_stack_comparison_ignore, cursor, mc_stack_ignore_variable_t);
884 if(strcmp(current_var->frame, frame) == 0){
885 if(strcmp(current_var->var_name, var_name) == 0){
891 if(strcmp(current_var->var_name, var_name) < 0)
893 if(strcmp(current_var->var_name, var_name) > 0)
896 if(strcmp(current_var->frame, frame) < 0)
898 if(strcmp(current_var->frame, frame) > 0)
902 mc_stack_ignore_variable_t var = NULL;
903 var = xbt_new0(s_mc_stack_ignore_variable_t, 1);
904 var->var_name = strdup(var_name);
905 var->frame = strdup(frame);
907 if(strcmp(current_var->frame, frame) < 0)
908 xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor + 1, &var);
910 xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor, &var);
921 void MC_new_stack_area(void *stack, char *name, void* context, size_t size){
923 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
926 if(stacks_areas == NULL)
927 stacks_areas = xbt_dynar_new(sizeof(stack_region_t), NULL);
929 stack_region_t region = NULL;
930 region = xbt_new0(s_stack_region_t, 1);
931 region->address = stack;
932 region->process_name = strdup(name);
933 region->context = context;
935 xbt_dynar_push(stacks_areas, ®ion);
943 /************ DWARF ***********/
945 xbt_dict_t MC_get_location_list(const char *elf_file){
947 char *command = bprintf("objdump -Wo %s", elf_file);
949 FILE *fp = popen(command, "r");
952 perror("popen for objdump failed");
956 int debug = 0; /*Detect if the program has been compiled with -g */
958 xbt_dict_t location_list = xbt_dict_new_homogeneous(NULL);
959 char *line = NULL, *loc_expr = NULL;
963 xbt_dynar_t split = NULL;
965 while ((read = getline(&line, &n, fp)) != -1) {
967 /* Wipeout the new line character */
968 line[read - 1] = '\0';
970 xbt_str_trim(line, NULL);
975 if(strlen(line) == 0)
980 if(strncmp(line, elf_file, strlen(elf_file)) == 0)
983 if(strncmp(line, "Contents", 8) == 0)
986 if(strncmp(line, "Offset", 6) == 0){
993 XBT_INFO("Your program must be compiled with -g");
997 xbt_dynar_t loclist = xbt_dynar_new(sizeof(dw_location_entry_t), NULL);
999 xbt_str_strip_spaces(line);
1000 split = xbt_str_split(line, " ");
1002 while(read != -1 && strcmp("<End", (char *)xbt_dynar_get_as(split, 1, char *)) != 0){
1004 dw_location_entry_t new_entry = xbt_new0(s_dw_location_entry_t, 1);
1005 new_entry->lowpc = strtoul((char *)xbt_dynar_get_as(split, 1, char *), NULL, 16);
1006 new_entry->highpc = strtoul((char *)xbt_dynar_get_as(split, 2, char *), NULL, 16);
1009 while(cursor_remove < 3){
1010 xbt_dynar_remove_at(split, 0, NULL);
1014 loc_expr = xbt_str_join(split, " ");
1015 xbt_str_ltrim(loc_expr, "(");
1016 xbt_str_rtrim(loc_expr, ")");
1017 new_entry->location = get_location(NULL, loc_expr);
1019 xbt_dynar_push(loclist, &new_entry);
1021 xbt_dynar_free(&split);
1024 read = getline(&line, &n, fp);
1026 line[read - 1] = '\0';
1027 xbt_str_strip_spaces(line);
1028 split = xbt_str_split(line, " ");
1034 char *key = bprintf("%d", (int)strtoul((char *)xbt_dynar_get_as(split, 0, char *), NULL, 16));
1035 xbt_dict_set(location_list, key, loclist, NULL);
1037 xbt_dynar_free(&split);
1045 return location_list;
1048 static dw_frame_t get_frame_by_offset(xbt_dict_t all_variables, unsigned long int offset){
1050 xbt_dict_cursor_t cursor = NULL;
1054 xbt_dict_foreach(all_variables, cursor, name, res) {
1055 if(offset >= res->start && offset < res->end)
1063 void MC_get_local_variables(const char *elf_file, xbt_dict_t location_list, xbt_dict_t *all_variables){
1065 char *command = bprintf("objdump -Wi %s", elf_file);
1067 FILE *fp = popen(command, "r");
1070 perror("popen for objdump failed");
1072 char *line = NULL, *origin, *abstract_origin, *current_frame = NULL;
1075 int valid_variable = 1;
1076 char *node_type = NULL, *location_type = NULL, *variable_name = NULL, *loc_expr = NULL;
1077 xbt_dynar_t split = NULL, split2 = NULL;
1079 xbt_dict_t variables_origin = xbt_dict_new_homogeneous(NULL);
1080 xbt_dict_t subprograms_origin = xbt_dict_new_homogeneous(NULL);
1081 char *subprogram_name = NULL, *subprogram_start = NULL, *subprogram_end = NULL;
1082 int new_frame = 0, new_variable = 0;
1083 dw_frame_t variable_frame, subroutine_frame = NULL;
1085 read = getline(&line, &n, fp);
1087 while (read != -1) {
1090 read = getline(&line, &n, fp);
1094 /* Wipeout the new line character */
1095 line[read - 1] = '\0';
1097 if(strlen(line) == 0){
1098 read = getline(&line, &n, fp);
1102 xbt_str_ltrim(line, NULL);
1103 xbt_str_strip_spaces(line);
1106 read = getline(&line, &n, fp);
1110 xbt_dynar_free(&split);
1111 split = xbt_str_split(line, " ");
1114 node_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1116 if(strcmp(node_type, "(DW_TAG_subprogram)") == 0){ /* New frame */
1118 dw_frame_t frame = NULL;
1120 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1121 subprogram_start = strdup(strtok(NULL, "<"));
1122 xbt_str_rtrim(subprogram_start, ">:");
1124 read = getline(&line, &n, fp);
1129 read = getline(&line, &n, fp);
1133 /* Wipeout the new line character */
1134 line[read - 1] = '\0';
1136 if(strlen(line) == 0){
1137 read = getline(&line, &n, fp);
1141 xbt_dynar_free(&split);
1142 xbt_str_rtrim(line, NULL);
1143 xbt_str_strip_spaces(line);
1144 split = xbt_str_split(line, " ");
1146 node_type = xbt_dynar_get_as(split, 1, char *);
1148 if(strncmp(node_type, "DW_AT_", 6) != 0)
1151 if(strcmp(node_type, "DW_AT_sibling") == 0){
1153 subprogram_end = strdup(xbt_dynar_get_as(split, 3, char*));
1154 xbt_str_ltrim(subprogram_end, "<0x");
1155 xbt_str_rtrim(subprogram_end, ">");
1157 }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){ /* Frame already in dict */
1160 abstract_origin = strdup(xbt_dynar_get_as(split, 2, char*));
1161 xbt_str_ltrim(abstract_origin, "<0x");
1162 xbt_str_rtrim(abstract_origin, ">");
1163 subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, abstract_origin);
1164 frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
1166 }else if(strcmp(node_type, "DW_AT_name") == 0){
1169 free(current_frame);
1170 frame = xbt_new0(s_dw_frame_t, 1);
1171 frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1172 frame->variables = xbt_dict_new_homogeneous(NULL);
1173 frame->frame_base = xbt_new0(s_dw_location_t, 1);
1174 current_frame = strdup(frame->name);
1176 xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
1178 }else if(strcmp(node_type, "DW_AT_frame_base") == 0){
1180 location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1182 if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
1184 frame->frame_base = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
1188 xbt_str_strip_spaces(line);
1189 split2 = xbt_str_split(line, "(");
1190 xbt_dynar_remove_at(split2, 0, NULL);
1191 loc_expr = xbt_str_join(split2, " ");
1192 xbt_str_rtrim(loc_expr, ")");
1193 frame->frame_base = get_location(NULL, loc_expr);
1194 xbt_dynar_free(&split2);
1198 }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
1201 frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1203 }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
1206 frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1208 }else if(strcmp(node_type, "DW_AT_MIPS_linkage_name:") == 0){
1211 free(current_frame);
1212 frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1213 current_frame = strdup(frame->name);
1214 xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
1218 read = getline(&line, &n, fp);
1223 frame->start = strtoul(subprogram_start, NULL, 16);
1224 if(subprogram_end != NULL)
1225 frame->end = strtoul(subprogram_end, NULL, 16);
1226 xbt_dict_set(*all_variables, frame->name, frame, NULL);
1229 free(subprogram_start);
1230 if(subprogram_end != NULL){
1231 free(subprogram_end);
1232 subprogram_end = NULL;
1236 }else if(strcmp(node_type, "(DW_TAG_variable)") == 0){ /* New variable */
1238 dw_local_variable_t var = NULL;
1240 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1241 origin = strdup(strtok(NULL, "<"));
1242 xbt_str_rtrim(origin, ">:");
1244 read = getline(&line, &n, fp);
1249 read = getline(&line, &n, fp);
1253 /* Wipeout the new line character */
1254 line[read - 1] = '\0';
1256 if(strlen(line) == 0){
1257 read = getline(&line, &n, fp);
1261 xbt_dynar_free(&split);
1262 xbt_str_rtrim(line, NULL);
1263 xbt_str_strip_spaces(line);
1264 split = xbt_str_split(line, " ");
1266 node_type = xbt_dynar_get_as(split, 1, char *);
1268 if(strncmp(node_type, "DW_AT_", 6) != 0)
1271 if(strcmp(node_type, "DW_AT_name") == 0){
1274 var = xbt_new0(s_dw_local_variable_t, 1);
1275 var->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1277 xbt_dict_set(variables_origin, origin, var->name, NULL);
1279 }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
1282 abstract_origin = xbt_dynar_get_as(split, 2, char *);
1283 xbt_str_ltrim(abstract_origin, "<0x");
1284 xbt_str_rtrim(abstract_origin, ">");
1286 variable_name = (char *)xbt_dict_get_or_null(variables_origin, abstract_origin);
1287 variable_frame = get_frame_by_offset(*all_variables, strtoul(abstract_origin, NULL, 16));
1288 var = xbt_dict_get_or_null(variable_frame->variables, variable_name);
1290 }else if(strcmp(node_type, "DW_AT_location") == 0){
1292 if(valid_variable == 1 && var != NULL){
1294 var->location = xbt_new0(s_dw_location_t, 1);
1296 location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1298 if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
1300 var->location = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
1304 xbt_str_strip_spaces(line);
1305 split2 = xbt_str_split(line, "(");
1306 xbt_dynar_remove_at(split2, 0, NULL);
1307 loc_expr = xbt_str_join(split2, " ");
1308 xbt_str_rtrim(loc_expr, ")");
1309 var->location = get_location(NULL, loc_expr);
1310 xbt_dynar_free(&split2);
1316 }else if(strcmp(node_type, "DW_AT_external") == 0){
1322 read = getline(&line, &n, fp);
1326 if(new_variable == 1 && valid_variable == 1){
1328 variable_frame = xbt_dict_get_or_null(*all_variables, current_frame);
1329 xbt_dict_set(variable_frame->variables, var->name, var, NULL);
1335 }else if(strcmp(node_type, "(DW_TAG_inlined_subroutine)") == 0){
1337 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1338 origin = strdup(strtok(NULL, "<"));
1339 xbt_str_rtrim(origin, ">:");
1341 read = getline(&line, &n, fp);
1345 /* Wipeout the new line character */
1346 line[read - 1] = '\0';
1349 read = getline(&line, &n, fp);
1353 if(strlen(line) == 0){
1354 read = getline(&line, &n, fp);
1358 xbt_dynar_free(&split);
1359 xbt_str_rtrim(line, NULL);
1360 xbt_str_strip_spaces(line);
1361 split = xbt_str_split(line, " ");
1363 if(strncmp(xbt_dynar_get_as(split, 1, char *), "DW_AT_", 6) != 0)
1366 node_type = xbt_dynar_get_as(split, 1, char *);
1368 if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
1370 origin = xbt_dynar_get_as(split, 2, char *);
1371 xbt_str_ltrim(origin, "<0x");
1372 xbt_str_rtrim(origin, ">");
1374 subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, origin);
1375 subroutine_frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
1377 }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
1379 subroutine_frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1381 }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
1383 subroutine_frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1386 read = getline(&line, &n, fp);
1392 read = getline(&line, &n, fp);
1398 xbt_dynar_free(&split);
1405 static dw_location_t get_location(xbt_dict_t location_list, char *expr){
1407 dw_location_t loc = xbt_new0(s_dw_location_t, 1);
1409 if(location_list != NULL){
1411 char *key = bprintf("%d", (int)strtoul(expr, NULL, 16));
1412 loc->type = e_dw_loclist;
1413 loc->location.loclist = (xbt_dynar_t)xbt_dict_get_or_null(location_list, key);
1415 XBT_INFO("Key not found in loclist");
1421 char *tok = NULL, *tok2 = NULL;
1423 xbt_dynar_t tokens1 = xbt_str_split(expr, ";");
1424 xbt_dynar_t tokens2;
1426 loc->type = e_dw_compose;
1427 loc->location.compose = xbt_dynar_new(sizeof(dw_location_t), NULL);
1429 while(cursor < xbt_dynar_length(tokens1)){
1431 tok = xbt_dynar_get_as(tokens1, cursor, char*);
1432 tokens2 = xbt_str_split(tok, " ");
1433 tok2 = xbt_dynar_get_as(tokens2, 0, char*);
1435 if(strncmp(tok2, "DW_OP_reg", 9) == 0){
1436 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1437 new_element->type = e_dw_register;
1438 new_element->location.reg = atoi(strtok(tok2, "DW_OP_reg"));
1439 xbt_dynar_push(loc->location.compose, &new_element);
1440 }else if(strcmp(tok2, "DW_OP_fbreg:") == 0){
1441 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1442 new_element->type = e_dw_fbregister_op;
1443 new_element->location.fbreg_op = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1444 xbt_dynar_push(loc->location.compose, &new_element);
1445 }else if(strncmp(tok2, "DW_OP_breg", 10) == 0){
1446 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1447 new_element->type = e_dw_bregister_op;
1448 new_element->location.breg_op.reg = atoi(strtok(tok2, "DW_OP_breg"));
1449 new_element->location.breg_op.offset = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1450 xbt_dynar_push(loc->location.compose, &new_element);
1451 }else if(strncmp(tok2, "DW_OP_lit", 9) == 0){
1452 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1453 new_element->type = e_dw_lit;
1454 new_element->location.lit = atoi(strtok(tok2, "DW_OP_lit"));
1455 xbt_dynar_push(loc->location.compose, &new_element);
1456 }else if(strcmp(tok2, "DW_OP_piece:") == 0){
1457 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1458 new_element->type = e_dw_piece;
1459 new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1460 /*if(strlen(xbt_dynar_get_as(tokens2, 1, char*)) > 1)
1461 new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1463 new_element->location.piece = xbt_dynar_get_as(tokens2, 1, char*)[0] - '0';*/
1464 xbt_dynar_push(loc->location.compose, &new_element);
1465 }else if(strcmp(tok2, "DW_OP_plus_uconst:") == 0){
1466 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1467 new_element->type = e_dw_plus_uconst;
1468 new_element->location.plus_uconst = atoi(xbt_dynar_get_as(tokens2, 1, char *));
1469 xbt_dynar_push(loc->location.compose, &new_element);
1470 }else if(strcmp(tok, "DW_OP_abs") == 0 ||
1471 strcmp(tok, "DW_OP_and") == 0 ||
1472 strcmp(tok, "DW_OP_div") == 0 ||
1473 strcmp(tok, "DW_OP_minus") == 0 ||
1474 strcmp(tok, "DW_OP_mod") == 0 ||
1475 strcmp(tok, "DW_OP_mul") == 0 ||
1476 strcmp(tok, "DW_OP_neg") == 0 ||
1477 strcmp(tok, "DW_OP_not") == 0 ||
1478 strcmp(tok, "DW_OP_or") == 0 ||
1479 strcmp(tok, "DW_OP_plus") == 0){
1480 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1481 new_element->type = e_dw_arithmetic;
1482 new_element->location.arithmetic = strdup(strtok(tok2, "DW_OP_"));
1483 xbt_dynar_push(loc->location.compose, &new_element);
1484 }else if(strcmp(tok, "DW_OP_stack_value") == 0){
1485 }else if(strcmp(tok2, "DW_OP_deref_size:") == 0){
1486 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1487 new_element->type = e_dw_deref;
1488 new_element->location.deref_size = (unsigned int short) atoi(xbt_dynar_get_as(tokens2, 1, char*));
1489 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1490 new_element->location.deref_size = atoi(xbt_dynar_get_as(tokens, cursor, char*));
1492 new_element->location.deref_size = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
1493 xbt_dynar_push(loc->location.compose, &new_element);
1494 }else if(strcmp(tok, "DW_OP_deref") == 0){
1495 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1496 new_element->type = e_dw_deref;
1497 new_element->location.deref_size = sizeof(void *);
1498 xbt_dynar_push(loc->location.compose, &new_element);
1499 }else if(strcmp(tok2, "DW_OP_constu:") == 0){
1500 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1501 new_element->type = e_dw_uconstant;
1502 new_element->location.uconstant.bytes = 1;
1503 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1504 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1505 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens, cursor, char*)));
1507 new_element->location.uconstant.value = (unsigned long int)(xbt_dynar_get_as(tokens, cursor, char*)[0] - '0');*/
1508 xbt_dynar_push(loc->location.compose, &new_element);
1509 }else if(strcmp(tok2, "DW_OP_consts:") == 0){
1510 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1511 new_element->type = e_dw_sconstant;
1512 new_element->location.sconstant.bytes = 1;
1513 new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1514 xbt_dynar_push(loc->location.compose, &new_element);
1515 }else if(strcmp(tok2, "DW_OP_const1u:") == 0 ||
1516 strcmp(tok2, "DW_OP_const2u:") == 0 ||
1517 strcmp(tok2, "DW_OP_const4u:") == 0 ||
1518 strcmp(tok2, "DW_OP_const8u:") == 0){
1519 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1520 new_element->type = e_dw_uconstant;
1521 new_element->location.uconstant.bytes = tok2[11] - '0';
1522 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1523 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1524 new_element->location.constant.value = atoi(xbt_dynar_get_as(tokens, cursor, char*));
1526 new_element->location.constant.value = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
1527 xbt_dynar_push(loc->location.compose, &new_element);
1528 }else if(strcmp(tok, "DW_OP_const1s") == 0 ||
1529 strcmp(tok, "DW_OP_const2s") == 0 ||
1530 strcmp(tok, "DW_OP_const4s") == 0 ||
1531 strcmp(tok, "DW_OP_const8s") == 0){
1532 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1533 new_element->type = e_dw_sconstant;
1534 new_element->location.sconstant.bytes = tok2[11] - '0';
1535 new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1536 xbt_dynar_push(loc->location.compose, &new_element);
1538 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1539 new_element->type = e_dw_unsupported;
1540 xbt_dynar_push(loc->location.compose, &new_element);
1544 xbt_dynar_free(&tokens2);
1548 xbt_dynar_free(&tokens1);
1557 void print_local_variables(xbt_dict_t list){
1559 dw_location_entry_t entry;
1560 dw_location_t location_entry;
1561 unsigned int cursor3 = 0, cursor4 = 0;
1562 xbt_dict_cursor_t cursor = 0, cursor2 = 0;
1564 char *frame_name, *variable_name;
1565 dw_frame_t current_frame;
1566 dw_local_variable_t current_variable;
1568 xbt_dict_foreach(list, cursor, frame_name, current_frame){
1569 fprintf(stderr, "Frame name : %s\n", current_frame->name);
1570 fprintf(stderr, "Location type : %d\n", current_frame->frame_base->type);
1571 xbt_dict_foreach((xbt_dict_t)current_frame->variables, cursor2, variable_name, current_variable){
1572 fprintf(stderr, "Name : %s\n", current_variable->name);
1573 if(current_variable->location == NULL)
1575 fprintf(stderr, "Location type : %d\n", current_variable->location->type);
1576 switch(current_variable->location->type){
1578 xbt_dynar_foreach(current_variable->location->location.loclist, cursor3, entry){
1579 fprintf(stderr, "Lowpc : %lx, Highpc : %lx,", entry->lowpc, entry->highpc);
1580 switch(entry->location->type){
1581 case e_dw_register :
1582 fprintf(stderr, " Location : in register %d\n", entry->location->location.reg);
1584 case e_dw_bregister_op:
1585 fprintf(stderr, " Location : Add %d to the value in register %d\n", entry->location->location.breg_op.offset, entry->location->location.breg_op.reg);
1588 fprintf(stderr, "Value already kwnown : %d\n", entry->location->location.lit);
1590 case e_dw_fbregister_op:
1591 fprintf(stderr, " Location : %d bytes from logical frame pointer\n", entry->location->location.fbreg_op);
1594 fprintf(stderr, " Location :\n");
1595 xbt_dynar_foreach(entry->location->location.compose, cursor4, location_entry){
1596 switch(location_entry->type){
1597 case e_dw_register :
1598 fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
1600 case e_dw_bregister_op:
1601 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);
1604 fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
1606 case e_dw_fbregister_op:
1607 fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
1610 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);
1612 case e_dw_arithmetic :
1613 fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
1616 fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
1618 case e_dw_uconstant :
1619 fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
1621 case e_dw_sconstant :
1622 fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
1625 fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
1631 fprintf(stderr, "Location type not supported\n");
1638 fprintf(stderr, "Location :\n");
1639 xbt_dynar_foreach(current_variable->location->location.compose, cursor4, location_entry){
1640 switch(location_entry->type){
1641 case e_dw_register :
1642 fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
1644 case e_dw_bregister_op:
1645 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);
1648 fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
1650 case e_dw_fbregister_op:
1651 fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
1654 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);
1656 case e_dw_arithmetic :
1657 fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
1660 fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
1662 case e_dw_uconstant :
1663 fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
1665 case e_dw_sconstant :
1666 fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
1669 fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
1675 fprintf(stderr, "Location type not supported\n");
1683 static void MC_get_global_variables(char *elf_file){
1687 char *command = bprintf("objdump -t -j .data -j .bss %s", elf_file);
1689 fp = popen(command, "r");
1692 perror("popen failed");
1696 if(mc_global_variables == NULL)
1697 mc_global_variables = xbt_dynar_new(sizeof(global_variable_t), global_variable_free_voidp);
1703 xbt_dynar_t line_tokens = NULL;
1704 unsigned long offset;
1706 int type = strcmp(elf_file, xbt_binary_name); /* 0 = binary, other = libsimgrid */
1708 while ((read = getline(&line, &n, fp)) != -1){
1713 /* Wipeout the new line character */
1714 line[read - 1] = '\0';
1716 xbt_str_strip_spaces(line);
1717 xbt_str_ltrim(line, NULL);
1719 line_tokens = xbt_str_split(line, NULL);
1721 if(xbt_dynar_length(line_tokens) <= 4 || strcmp(xbt_dynar_get_as(line_tokens, 0, char *), "SYMBOL") == 0)
1724 if((strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "__gcov", 6) == 0)
1725 || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "gcov", 4) == 0)
1726 || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), ".data") == 0)
1727 || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), ".bss") == 0)
1728 || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "stderr", 6) == 0)
1729 || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "counter", 7) == 0)
1730 || ((size_t)strtoul(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 2, char*), NULL, 16) == 0))
1733 global_variable_t var = xbt_new0(s_global_variable_t, 1);
1736 var->address = (void *)strtoul(xbt_dynar_get_as(line_tokens, 0, char*), NULL, 16);
1738 offset = strtoul(xbt_dynar_get_as(line_tokens, 0, char*), NULL, 16);
1739 var->address = (char *)start_text_libsimgrid+offset;
1742 var->size = (size_t)strtoul(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 2, char*), NULL, 16);
1743 var->name = strdup(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*));
1745 if(data_bss_ignore_size(var->address) > 0)
1746 global_variable_free(var);
1748 xbt_dynar_push(mc_global_variables, &var);
1750 xbt_dynar_free(&line_tokens);
1760 void global_variable_free(global_variable_t v){
1765 void global_variable_free_voidp(void *v){
1766 global_variable_free((global_variable_t) * (void **) v);