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 "../surf/surf_private.h"
12 #include "../simix/smx_private.h"
13 #include "../xbt/mmalloc/mmprivate.h"
15 #include "mc_private.h"
16 #include "xbt/automaton.h"
19 XBT_LOG_NEW_CATEGORY(mc, "All MC categories");
20 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_global, mc,
21 "Logging specific to MC (global)");
23 /* Configuration support */
24 e_mc_reduce_t mc_reduce_kind=e_mc_reduce_unset;
27 extern int _surf_init_status;
28 void _mc_cfg_cb_reduce(const char *name, int pos) {
29 if (_surf_init_status && !_surf_do_model_check) {
30 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.");
32 char *val= xbt_cfg_get_string(_surf_cfg_set, name);
33 if (!strcasecmp(val,"none")) {
34 mc_reduce_kind = e_mc_reduce_none;
35 } else if (!strcasecmp(val,"dpor")) {
36 mc_reduce_kind = e_mc_reduce_dpor;
38 xbt_die("configuration option %s can only take 'none' or 'dpor' as a value",name);
42 void _mc_cfg_cb_checkpoint(const char *name, int pos) {
43 if (_surf_init_status && !_surf_do_model_check) {
44 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.");
46 _surf_mc_checkpoint = xbt_cfg_get_int(_surf_cfg_set, name);
48 void _mc_cfg_cb_property(const char *name, int pos) {
49 if (_surf_init_status && !_surf_do_model_check) {
50 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.");
52 _surf_mc_property_file= xbt_cfg_get_string(_surf_cfg_set, name);
55 void _mc_cfg_cb_timeout(const char *name, int pos) {
56 if (_surf_init_status && !_surf_do_model_check) {
57 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.");
59 _surf_mc_timeout= xbt_cfg_get_int(_surf_cfg_set, name);
62 void _mc_cfg_cb_max_depth(const char *name, int pos) {
63 if (_surf_init_status && !_surf_do_model_check) {
64 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.");
66 _surf_mc_max_depth= xbt_cfg_get_int(_surf_cfg_set, name);
69 void _mc_cfg_cb_visited(const char *name, int pos) {
70 if (_surf_init_status && !_surf_do_model_check) {
71 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.");
73 _surf_mc_visited= xbt_cfg_get_int(_surf_cfg_set, name);
77 /* MC global data structures */
79 mc_state_t mc_current_state = NULL;
80 char mc_replay_mode = FALSE;
81 double *mc_time = NULL;
85 xbt_fifo_t mc_stack_safety = NULL;
86 mc_stats_t mc_stats = NULL;
87 mc_global_t initial_state_safety = NULL;
91 mc_stats_pair_t mc_stats_pair = NULL;
92 xbt_fifo_t mc_stack_liveness = NULL;
93 mc_global_t initial_state_liveness = NULL;
97 xbt_dict_t mc_local_variables = NULL;
99 xbt_dynar_t mc_global_variables = NULL;
101 /* Ignore mechanism */
102 xbt_dynar_t mc_stack_comparison_ignore;
103 xbt_dynar_t mc_data_bss_comparison_ignore;
104 extern xbt_dynar_t mc_heap_comparison_ignore;
105 extern xbt_dynar_t stacks_areas;
107 xbt_automaton_t _mc_property_automaton = NULL;
109 /* Static functions */
111 static void MC_assert_pair(int prop);
112 static dw_location_t get_location(xbt_dict_t location_list, char *expr);
113 static dw_frame_t get_frame_by_offset(xbt_dict_t all_variables, unsigned long int offset);
114 static size_t data_bss_ignore_size(void *address);
115 static void MC_get_global_variables(char *elf_file);
117 void MC_do_the_modelcheck_for_real() {
118 if (!_surf_mc_property_file || _surf_mc_property_file[0]=='\0') {
119 if (mc_reduce_kind==e_mc_reduce_unset)
120 mc_reduce_kind=e_mc_reduce_dpor;
122 XBT_INFO("Check a safety property");
123 MC_modelcheck_safety();
127 if (mc_reduce_kind==e_mc_reduce_unset)
128 mc_reduce_kind=e_mc_reduce_none;
130 XBT_INFO("Check the liveness property %s",_surf_mc_property_file);
131 MC_automaton_load(_surf_mc_property_file);
132 MC_modelcheck_liveness();
137 void MC_compare(void){
143 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
145 mc_time = xbt_new0(double, simix_process_maxpid);
147 /* mc_time refers to clock for each process -> ignore it for heap comparison */
149 for(i = 0; i<simix_process_maxpid; i++)
150 MC_ignore_heap(&(mc_time[i]), sizeof(double));
154 /* Initialize the data structures that must be persistent across every
155 iteration of the model-checker (in RAW memory) */
159 MC_init_memory_map_info();
161 mc_local_variables = xbt_dict_new_homogeneous(NULL);
163 /* Get local variables in binary for state equality detection */
164 xbt_dict_t binary_location_list = MC_get_location_list(xbt_binary_name);
165 MC_get_local_variables(xbt_binary_name, binary_location_list, &mc_local_variables);
167 /* Get local variables in libsimgrid for state equality detection */
168 xbt_dict_t libsimgrid_location_list = MC_get_location_list(libsimgrid_path);
169 MC_get_local_variables(libsimgrid_path, libsimgrid_location_list, &mc_local_variables);
171 /* Get .plt section (start and end addresses) for data libsimgrid and data program comparison */
172 get_libsimgrid_plt_section();
173 get_binary_plt_section();
175 /* Get global variables */
176 MC_get_global_variables(xbt_binary_name);
177 MC_get_global_variables(libsimgrid_path);
181 /* Ignore some variables from xbt/ex.h used by exception e for stacks comparison */
182 MC_ignore_stack("e", "*");
183 MC_ignore_stack("__ex_cleanup", "*");
184 MC_ignore_stack("__ex_mctx_en", "*");
185 MC_ignore_stack("__ex_mctx_me", "*");
186 MC_ignore_stack("_log_ev", "*");
187 MC_ignore_stack("_throw_ctx", "*");
188 MC_ignore_stack("ctx", "*");
196 void MC_modelcheck_safety(void)
198 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
200 /* Check if MC is already initialized */
201 if (initial_state_safety)
204 mc_time = xbt_new0(double, simix_process_maxpid);
206 /* Initialize the data structures that must be persistent across every
207 iteration of the model-checker (in RAW memory) */
211 /* Initialize statistics */
212 mc_stats = xbt_new0(s_mc_stats_t, 1);
213 mc_stats->state_size = 1;
215 /* Create exploration stack */
216 mc_stack_safety = xbt_fifo_new();
220 if(_surf_mc_visited > 0){
223 MC_init_memory_map_info();
224 get_libsimgrid_plt_section();
225 get_binary_plt_section();
231 /* Save the initial state */
232 initial_state_safety = xbt_new0(s_mc_global_t, 1);
233 initial_state_safety->snapshot = MC_take_snapshot();
244 void MC_modelcheck_liveness(){
246 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
252 /* Initialize statistics */
253 mc_stats_pair = xbt_new0(s_mc_stats_pair_t, 1);
255 /* Create exploration stack */
256 mc_stack_liveness = xbt_fifo_new();
258 initial_state_liveness = xbt_new0(s_mc_global_t, 1);
265 MC_print_statistics_pairs(mc_stats_pair);
281 int MC_random(int min, int max)
283 /*FIXME: return mc_current_state->executed_transition->random.value;*/
288 * \brief Schedules all the process that are ready to run
290 void MC_wait_for_requests(void)
292 smx_process_t process;
296 while (!xbt_dynar_is_empty(simix_global->process_to_run)) {
297 SIMIX_process_runall();
298 xbt_dynar_foreach(simix_global->process_that_ran, iter, process) {
299 req = &process->simcall;
300 if (req->call != SIMCALL_NONE && !MC_request_is_visible(req))
301 SIMIX_simcall_pre(req, 0);
306 int MC_deadlock_check()
308 int deadlock = FALSE;
309 smx_process_t process;
310 if(xbt_swag_size(simix_global->process_list)){
312 xbt_swag_foreach(process, simix_global->process_list){
313 if(process->simcall.call != SIMCALL_NONE
314 && MC_request_is_enabled(&process->simcall)){
324 * \brief Re-executes from the state at position start all the transitions indicated by
325 * a given model-checker stack.
326 * \param stack The stack with the transitions to execute.
327 * \param start Start index to begin the re-execution.
329 void MC_replay(xbt_fifo_t stack, int start)
331 int raw_mem = (mmalloc_get_current_heap() == raw_heap);
335 smx_simcall_t req = NULL, saved_req = NULL;
336 xbt_fifo_item_t item, start_item;
339 XBT_DEBUG("**** Begin Replay ****");
342 /* Restore the initial state */
343 MC_restore_snapshot(initial_state_safety->snapshot);
344 /* At the moment of taking the snapshot the raw heap was set, so restoring
345 * it will set it back again, we have to unset it to continue */
349 start_item = xbt_fifo_get_last_item(stack);
352 start_item = xbt_fifo_get_prev_item(start_item);
357 /* Traverse the stack from the state at position start and re-execute the transitions */
358 for (item = start_item;
359 item != xbt_fifo_get_first_item(stack);
360 item = xbt_fifo_get_prev_item(item)) {
362 state = (mc_state_t) xbt_fifo_get_item_content(item);
363 saved_req = MC_state_get_executed_request(state, &value);
366 /* because we got a copy of the executed request, we have to fetch the
367 real one, pointed by the request field of the issuer process */
368 req = &saved_req->issuer->simcall;
370 /* Debug information */
371 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
372 req_str = MC_request_to_string(req, value);
373 XBT_DEBUG("Replay: %s (%p)", req_str, state);
378 SIMIX_simcall_pre(req, value);
379 MC_wait_for_requests();
381 /* Update statistics */
382 mc_stats->visited_states++;
383 mc_stats->executed_transitions++;
385 XBT_DEBUG("**** End Replay ****");
395 void MC_replay_liveness(xbt_fifo_t stack, int all_stack)
398 initial_state_liveness->raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
402 smx_simcall_t req = NULL, saved_req = NULL;
403 xbt_fifo_item_t item;
405 mc_pair_stateless_t pair;
408 XBT_DEBUG("**** Begin Replay ****");
410 /* Restore the initial state */
411 MC_restore_snapshot(initial_state_liveness->snapshot);
413 /* At the moment of taking the snapshot the raw heap was set, so restoring
414 * it will set it back again, we have to unset it to continue */
415 if(!initial_state_liveness->raw_mem_set)
420 item = xbt_fifo_get_last_item(stack);
422 while(depth <= xbt_fifo_size(stack)){
424 pair = (mc_pair_stateless_t) xbt_fifo_get_item_content(item);
425 state = (mc_state_t) pair->graph_state;
427 if(pair->requests > 0){
429 saved_req = MC_state_get_executed_request(state, &value);
430 //XBT_DEBUG("SavedReq->call %u", saved_req->call);
432 if(saved_req != NULL){
433 /* because we got a copy of the executed request, we have to fetch the
434 real one, pointed by the request field of the issuer process */
435 req = &saved_req->issuer->simcall;
436 //XBT_DEBUG("Req->call %u", req->call);
438 /* Debug information */
439 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
440 req_str = MC_request_to_string(req, value);
441 XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
447 SIMIX_simcall_pre(req, value);
448 MC_wait_for_requests();
453 /* Update statistics */
454 mc_stats_pair->visited_pairs++;
456 item = xbt_fifo_get_prev_item(item);
461 /* Traverse the stack from the initial state and re-execute the transitions */
462 for (item = xbt_fifo_get_last_item(stack);
463 item != xbt_fifo_get_first_item(stack);
464 item = xbt_fifo_get_prev_item(item)) {
466 pair = (mc_pair_stateless_t) xbt_fifo_get_item_content(item);
467 state = (mc_state_t) pair->graph_state;
469 if(pair->requests > 0){
471 saved_req = MC_state_get_executed_request(state, &value);
472 //XBT_DEBUG("SavedReq->call %u", saved_req->call);
474 if(saved_req != NULL){
475 /* because we got a copy of the executed request, we have to fetch the
476 real one, pointed by the request field of the issuer process */
477 req = &saved_req->issuer->simcall;
478 //XBT_DEBUG("Req->call %u", req->call);
480 /* Debug information */
481 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
482 req_str = MC_request_to_string(req, value);
483 XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
489 SIMIX_simcall_pre(req, value);
490 MC_wait_for_requests();
495 /* Update statistics */
496 mc_stats_pair->visited_pairs++;
500 XBT_DEBUG("**** End Replay ****");
502 if(initial_state_liveness->raw_mem_set)
510 * \brief Dumps the contents of a model-checker's stack and shows the actual
512 * \param stack The stack to dump
514 void MC_dump_stack_safety(xbt_fifo_t stack)
517 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
519 MC_show_stack_safety(stack);
521 if(!_surf_mc_checkpoint){
526 while ((state = (mc_state_t) xbt_fifo_pop(stack)) != NULL)
527 MC_state_delete(state);
540 void MC_show_stack_safety(xbt_fifo_t stack)
544 xbt_fifo_item_t item;
546 char *req_str = NULL;
548 for (item = xbt_fifo_get_last_item(stack);
549 (item ? (state = (mc_state_t) (xbt_fifo_get_item_content(item)))
550 : (NULL)); item = xbt_fifo_get_prev_item(item)) {
551 req = MC_state_get_executed_request(state, &value);
553 req_str = MC_request_to_string(req, value);
554 XBT_INFO("%s", req_str);
560 void MC_show_deadlock(smx_simcall_t req)
562 /*char *req_str = NULL;*/
563 XBT_INFO("**************************");
564 XBT_INFO("*** DEAD-LOCK DETECTED ***");
565 XBT_INFO("**************************");
566 XBT_INFO("Locked request:");
567 /*req_str = MC_request_to_string(req);
568 XBT_INFO("%s", req_str);
570 XBT_INFO("Counter-example execution trace:");
571 MC_dump_stack_safety(mc_stack_safety);
575 void MC_show_stack_liveness(xbt_fifo_t stack){
577 mc_pair_stateless_t pair;
578 xbt_fifo_item_t item;
580 char *req_str = NULL;
582 for (item = xbt_fifo_get_last_item(stack);
583 (item ? (pair = (mc_pair_stateless_t) (xbt_fifo_get_item_content(item)))
584 : (NULL)); item = xbt_fifo_get_prev_item(item)) {
585 req = MC_state_get_executed_request(pair->graph_state, &value);
587 if(pair->requests>0){
588 req_str = MC_request_to_string(req, value);
589 XBT_INFO("%s", req_str);
592 XBT_INFO("End of system requests but evolution in Büchi automaton");
598 void MC_dump_stack_liveness(xbt_fifo_t stack){
600 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
602 mc_pair_stateless_t pair;
605 while ((pair = (mc_pair_stateless_t) xbt_fifo_pop(stack)) != NULL)
606 pair_stateless_free(pair);
615 void MC_print_statistics(mc_stats_t stats)
617 //XBT_INFO("State space size ~= %lu", stats->state_size);
618 XBT_INFO("Expanded states = %lu", stats->expanded_states);
619 XBT_INFO("Visited states = %lu", stats->visited_states);
620 XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
621 XBT_INFO("Expanded / Visited = %lf",
622 (double) stats->visited_states / stats->expanded_states);
623 /*XBT_INFO("Exploration coverage = %lf",
624 (double)stats->expanded_states / stats->state_size); */
627 void MC_print_statistics_pairs(mc_stats_pair_t stats)
629 XBT_INFO("Expanded pairs = %lu", stats->expanded_pairs);
630 XBT_INFO("Visited pairs = %lu", stats->visited_pairs);
631 //XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
632 XBT_INFO("Expanded / Visited = %lf",
633 (double) stats->visited_pairs / stats->expanded_pairs);
635 if(mmalloc_get_current_heap() == raw_heap)
639 void MC_assert(int prop)
641 if (MC_is_active() && !prop){
642 XBT_INFO("**************************");
643 XBT_INFO("*** PROPERTY NOT VALID ***");
644 XBT_INFO("**************************");
645 XBT_INFO("Counter-example execution trace:");
646 MC_dump_stack_safety(mc_stack_safety);
647 MC_print_statistics(mc_stats);
652 static void MC_assert_pair(int prop){
653 if (MC_is_active() && !prop) {
654 XBT_INFO("**************************");
655 XBT_INFO("*** PROPERTY NOT VALID ***");
656 XBT_INFO("**************************");
657 //XBT_INFO("Counter-example execution trace:");
658 MC_show_stack_liveness(mc_stack_liveness);
659 //MC_dump_snapshot_stack(mc_snapshot_stack);
660 MC_print_statistics_pairs(mc_stats_pair);
665 void MC_process_clock_add(smx_process_t process, double amount)
667 mc_time[process->pid] += amount;
670 double MC_process_clock_get(smx_process_t process)
674 return mc_time[process->pid];
682 void MC_automaton_load(const char *file){
684 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
688 if (_mc_property_automaton == NULL)
689 _mc_property_automaton = xbt_automaton_new();
691 xbt_automaton_load(_mc_property_automaton,file);
700 void MC_automaton_new_propositional_symbol(const char* id, void* fct) {
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_new_propositional_symbol(_mc_property_automaton,id,fct);
718 /************ MC_ignore ***********/
720 void MC_ignore_heap(void *address, size_t size){
722 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
726 if(mc_heap_comparison_ignore == NULL)
727 mc_heap_comparison_ignore = xbt_dynar_new(sizeof(mc_heap_ignore_region_t), NULL);
729 mc_heap_ignore_region_t region = NULL;
730 region = xbt_new0(s_mc_heap_ignore_region_t, 1);
731 region->address = address;
734 if((address >= std_heap) && (address <= (void*)((char *)std_heap + STD_HEAP_SIZE))){
736 region->block = ((char*)address - (char*)((xbt_mheap_t)std_heap)->heapbase) / BLOCKSIZE + 1;
738 if(((xbt_mheap_t)std_heap)->heapinfo[region->block].type == 0){
739 region->fragment = -1;
741 region->fragment = ((uintptr_t) (ADDR2UINT (address) % (BLOCKSIZE))) >> ((xbt_mheap_t)std_heap)->heapinfo[region->block].type;
746 unsigned int cursor = 0;
747 mc_heap_ignore_region_t current_region;
748 xbt_dynar_foreach(mc_heap_comparison_ignore, cursor, current_region){
749 if(current_region->address > address)
753 xbt_dynar_insert_at(mc_heap_comparison_ignore, cursor, ®ion);
761 void MC_ignore_data_bss(void *address, size_t size){
763 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
767 if(mc_data_bss_comparison_ignore == NULL)
768 mc_data_bss_comparison_ignore = xbt_dynar_new(sizeof(mc_data_bss_ignore_variable_t), NULL);
770 if(xbt_dynar_is_empty(mc_data_bss_comparison_ignore)){
772 mc_data_bss_ignore_variable_t var = NULL;
773 var = xbt_new0(s_mc_data_bss_ignore_variable_t, 1);
774 var->address = address;
777 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, 0, &var);
781 unsigned int cursor = 0;
783 int end = xbt_dynar_length(mc_data_bss_comparison_ignore) - 1;
784 mc_data_bss_ignore_variable_t current_var = NULL;
787 cursor = (start + end) / 2;
788 current_var = (mc_data_bss_ignore_variable_t)xbt_dynar_get_as(mc_data_bss_comparison_ignore, cursor, mc_data_bss_ignore_variable_t);
789 if(current_var->address == address){
795 if(current_var->address < address)
797 if(current_var->address > address)
801 mc_data_bss_ignore_variable_t var = NULL;
802 var = xbt_new0(s_mc_data_bss_ignore_variable_t, 1);
803 var->address = address;
806 if(current_var->address < address)
807 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, cursor + 1, &var);
809 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, cursor, &var);
819 void MC_ignore_stack(const char *var_name, const char *frame){
821 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
825 if(mc_stack_comparison_ignore == NULL)
826 mc_stack_comparison_ignore = xbt_dynar_new(sizeof(mc_stack_ignore_variable_t), NULL);
828 if(xbt_dynar_is_empty(mc_stack_comparison_ignore)){
830 mc_stack_ignore_variable_t var = NULL;
831 var = xbt_new0(s_mc_stack_ignore_variable_t, 1);
832 var->var_name = strdup(var_name);
833 var->frame = strdup(frame);
835 xbt_dynar_insert_at(mc_stack_comparison_ignore, 0, &var);
839 unsigned int cursor = 0;
841 int end = xbt_dynar_length(mc_stack_comparison_ignore) - 1;
842 mc_stack_ignore_variable_t current_var = NULL;
845 cursor = (start + end) / 2;
846 current_var = (mc_stack_ignore_variable_t)xbt_dynar_get_as(mc_stack_comparison_ignore, cursor, mc_stack_ignore_variable_t);
847 if(strcmp(current_var->frame, frame) == 0){
848 if(strcmp(current_var->var_name, var_name) == 0){
854 if(strcmp(current_var->var_name, var_name) < 0)
856 if(strcmp(current_var->var_name, var_name) > 0)
859 if(strcmp(current_var->frame, frame) < 0)
861 if(strcmp(current_var->frame, frame) > 0)
865 mc_stack_ignore_variable_t var = NULL;
866 var = xbt_new0(s_mc_stack_ignore_variable_t, 1);
867 var->var_name = strdup(var_name);
868 var->frame = strdup(frame);
870 if(strcmp(current_var->frame, frame) < 0)
871 xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor + 1, &var);
873 xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor, &var);
884 void MC_new_stack_area(void *stack, char *name, void* context, size_t size){
886 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
889 if(stacks_areas == NULL)
890 stacks_areas = xbt_dynar_new(sizeof(stack_region_t), NULL);
892 stack_region_t region = NULL;
893 region = xbt_new0(s_stack_region_t, 1);
894 region->address = stack;
895 region->process_name = strdup(name);
896 region->context = context;
898 xbt_dynar_push(stacks_areas, ®ion);
906 /************ DWARF ***********/
908 xbt_dict_t MC_get_location_list(const char *elf_file){
910 char *command = bprintf("objdump -Wo %s", elf_file);
912 FILE *fp = popen(command, "r");
915 perror("popen for objdump failed");
919 int debug = 0; /*Detect if the program has been compiled with -g */
921 xbt_dict_t location_list = xbt_dict_new_homogeneous(NULL);
922 char *line = NULL, *loc_expr = NULL;
926 xbt_dynar_t split = NULL;
928 while ((read = getline(&line, &n, fp)) != -1) {
930 /* Wipeout the new line character */
931 line[read - 1] = '\0';
933 xbt_str_trim(line, NULL);
938 if(strlen(line) == 0)
943 if(strncmp(line, elf_file, strlen(elf_file)) == 0)
946 if(strncmp(line, "Contents", 8) == 0)
949 if(strncmp(line, "Offset", 6) == 0){
956 XBT_INFO("Your program must be compiled with -g");
960 xbt_dynar_t loclist = xbt_dynar_new(sizeof(dw_location_entry_t), NULL);
962 xbt_str_strip_spaces(line);
963 split = xbt_str_split(line, " ");
965 while(read != -1 && strcmp("<End", (char *)xbt_dynar_get_as(split, 1, char *)) != 0){
967 dw_location_entry_t new_entry = xbt_new0(s_dw_location_entry_t, 1);
968 new_entry->lowpc = strtoul((char *)xbt_dynar_get_as(split, 1, char *), NULL, 16);
969 new_entry->highpc = strtoul((char *)xbt_dynar_get_as(split, 2, char *), NULL, 16);
972 while(cursor_remove < 3){
973 xbt_dynar_remove_at(split, 0, NULL);
977 loc_expr = xbt_str_join(split, " ");
978 xbt_str_ltrim(loc_expr, "(");
979 xbt_str_rtrim(loc_expr, ")");
980 new_entry->location = get_location(NULL, loc_expr);
982 xbt_dynar_push(loclist, &new_entry);
984 xbt_dynar_free(&split);
987 read = getline(&line, &n, fp);
989 line[read - 1] = '\0';
990 xbt_str_strip_spaces(line);
991 split = xbt_str_split(line, " ");
997 char *key = bprintf("%d", (int)strtoul((char *)xbt_dynar_get_as(split, 0, char *), NULL, 16));
998 xbt_dict_set(location_list, key, loclist, NULL);
1000 xbt_dynar_free(&split);
1008 return location_list;
1011 char *get_libsimgrid_path(){
1013 char *command = bprintf("ldd %s", xbt_binary_name);
1015 FILE *fp = popen(command, "r");
1018 perror("popen for ldd failed");
1027 while((read = getline(&line, &n, fp)) != -1){
1032 /* Wipeout the new line character */
1033 line[read - 1] = '\0';
1035 xbt_str_strip_spaces(line);
1036 xbt_str_ltrim(line, NULL);
1037 split = xbt_str_split(line, " ");
1039 if(strncmp((char *)xbt_dynar_get_as(split, 0, char *), "libsimgrid.so", 13) == 0){
1043 return ((char *)xbt_dynar_get_as(split, 2, char *));
1046 xbt_dynar_free(&split);
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)
1073 void MC_get_local_variables(const char *elf_file, xbt_dict_t location_list, xbt_dict_t *all_variables){
1075 char *command = bprintf("objdump -Wi %s", elf_file);
1077 FILE *fp = popen(command, "r");
1080 perror("popen for objdump failed");
1082 char *line = NULL, *origin, *abstract_origin, *current_frame = NULL;
1085 int valid_variable = 1;
1086 char *node_type = NULL, *location_type = NULL, *variable_name = NULL, *loc_expr = NULL;
1087 xbt_dynar_t split = NULL, split2 = NULL;
1089 xbt_dict_t variables_origin = xbt_dict_new_homogeneous(NULL);
1090 xbt_dict_t subprograms_origin = xbt_dict_new_homogeneous(NULL);
1091 char *subprogram_name = NULL, *subprogram_start = NULL, *subprogram_end = NULL;
1092 int new_frame = 0, new_variable = 0;
1093 dw_frame_t variable_frame, subroutine_frame = NULL;
1095 read = getline(&line, &n, fp);
1097 while (read != -1) {
1100 read = getline(&line, &n, fp);
1104 /* Wipeout the new line character */
1105 line[read - 1] = '\0';
1107 if(strlen(line) == 0){
1108 read = getline(&line, &n, fp);
1112 xbt_str_ltrim(line, NULL);
1113 xbt_str_strip_spaces(line);
1116 read = getline(&line, &n, fp);
1120 xbt_dynar_free(&split);
1121 split = xbt_str_split(line, " ");
1124 node_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1126 if(strcmp(node_type, "(DW_TAG_subprogram)") == 0){ /* New frame */
1128 dw_frame_t frame = NULL;
1130 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1131 subprogram_start = strdup(strtok(NULL, "<"));
1132 xbt_str_rtrim(subprogram_start, ">:");
1134 read = getline(&line, &n, fp);
1139 read = getline(&line, &n, fp);
1143 /* Wipeout the new line character */
1144 line[read - 1] = '\0';
1146 if(strlen(line) == 0){
1147 read = getline(&line, &n, fp);
1151 xbt_dynar_free(&split);
1152 xbt_str_rtrim(line, NULL);
1153 xbt_str_strip_spaces(line);
1154 split = xbt_str_split(line, " ");
1156 node_type = xbt_dynar_get_as(split, 1, char *);
1158 if(strncmp(node_type, "DW_AT_", 6) != 0)
1161 if(strcmp(node_type, "DW_AT_sibling") == 0){
1163 subprogram_end = strdup(xbt_dynar_get_as(split, 3, char*));
1164 xbt_str_ltrim(subprogram_end, "<0x");
1165 xbt_str_rtrim(subprogram_end, ">");
1167 }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){ /* Frame already in dict */
1170 abstract_origin = strdup(xbt_dynar_get_as(split, 2, char*));
1171 xbt_str_ltrim(abstract_origin, "<0x");
1172 xbt_str_rtrim(abstract_origin, ">");
1173 subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, abstract_origin);
1174 frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
1176 }else if(strcmp(node_type, "DW_AT_name") == 0){
1179 free(current_frame);
1180 frame = xbt_new0(s_dw_frame_t, 1);
1181 frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1182 frame->variables = xbt_dict_new_homogeneous(NULL);
1183 frame->frame_base = xbt_new0(s_dw_location_t, 1);
1184 current_frame = strdup(frame->name);
1186 xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
1188 }else if(strcmp(node_type, "DW_AT_frame_base") == 0){
1190 location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1192 if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
1194 frame->frame_base = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
1198 xbt_str_strip_spaces(line);
1199 split2 = xbt_str_split(line, "(");
1200 xbt_dynar_remove_at(split2, 0, NULL);
1201 loc_expr = xbt_str_join(split2, " ");
1202 xbt_str_rtrim(loc_expr, ")");
1203 frame->frame_base = get_location(NULL, loc_expr);
1204 xbt_dynar_free(&split2);
1208 }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
1211 frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1213 }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
1216 frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1218 }else if(strcmp(node_type, "DW_AT_MIPS_linkage_name:") == 0){
1221 free(current_frame);
1222 frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1223 current_frame = strdup(frame->name);
1224 xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
1228 read = getline(&line, &n, fp);
1233 frame->start = strtoul(subprogram_start, NULL, 16);
1234 if(subprogram_end != NULL)
1235 frame->end = strtoul(subprogram_end, NULL, 16);
1236 xbt_dict_set(*all_variables, frame->name, frame, NULL);
1239 free(subprogram_start);
1240 if(subprogram_end != NULL){
1241 free(subprogram_end);
1242 subprogram_end = NULL;
1246 }else if(strcmp(node_type, "(DW_TAG_variable)") == 0){ /* New variable */
1248 dw_local_variable_t var = NULL;
1250 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1251 origin = strdup(strtok(NULL, "<"));
1252 xbt_str_rtrim(origin, ">:");
1254 read = getline(&line, &n, fp);
1259 read = getline(&line, &n, fp);
1263 /* Wipeout the new line character */
1264 line[read - 1] = '\0';
1266 if(strlen(line) == 0){
1267 read = getline(&line, &n, fp);
1271 xbt_dynar_free(&split);
1272 xbt_str_rtrim(line, NULL);
1273 xbt_str_strip_spaces(line);
1274 split = xbt_str_split(line, " ");
1276 node_type = xbt_dynar_get_as(split, 1, char *);
1278 if(strncmp(node_type, "DW_AT_", 6) != 0)
1281 if(strcmp(node_type, "DW_AT_name") == 0){
1284 var = xbt_new0(s_dw_local_variable_t, 1);
1285 var->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1287 xbt_dict_set(variables_origin, origin, var->name, NULL);
1289 }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
1292 abstract_origin = xbt_dynar_get_as(split, 2, char *);
1293 xbt_str_ltrim(abstract_origin, "<0x");
1294 xbt_str_rtrim(abstract_origin, ">");
1296 variable_name = (char *)xbt_dict_get_or_null(variables_origin, abstract_origin);
1297 variable_frame = get_frame_by_offset(*all_variables, strtoul(abstract_origin, NULL, 16));
1298 var = xbt_dict_get_or_null(variable_frame->variables, variable_name);
1300 }else if(strcmp(node_type, "DW_AT_location") == 0){
1302 if(valid_variable == 1 && var != NULL){
1304 var->location = xbt_new0(s_dw_location_t, 1);
1306 location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1308 if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
1310 var->location = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
1314 xbt_str_strip_spaces(line);
1315 split2 = xbt_str_split(line, "(");
1316 xbt_dynar_remove_at(split2, 0, NULL);
1317 loc_expr = xbt_str_join(split2, " ");
1318 xbt_str_rtrim(loc_expr, ")");
1319 var->location = get_location(NULL, loc_expr);
1320 xbt_dynar_free(&split2);
1326 }else if(strcmp(node_type, "DW_AT_external") == 0){
1332 read = getline(&line, &n, fp);
1336 if(new_variable == 1 && valid_variable == 1){
1338 variable_frame = xbt_dict_get_or_null(*all_variables, current_frame);
1339 xbt_dict_set(variable_frame->variables, var->name, var, NULL);
1345 }else if(strcmp(node_type, "(DW_TAG_inlined_subroutine)") == 0){
1347 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1348 origin = strdup(strtok(NULL, "<"));
1349 xbt_str_rtrim(origin, ">:");
1351 read = getline(&line, &n, fp);
1355 /* Wipeout the new line character */
1356 line[read - 1] = '\0';
1359 read = getline(&line, &n, fp);
1363 if(strlen(line) == 0){
1364 read = getline(&line, &n, fp);
1368 xbt_dynar_free(&split);
1369 xbt_str_rtrim(line, NULL);
1370 xbt_str_strip_spaces(line);
1371 split = xbt_str_split(line, " ");
1373 if(strncmp(xbt_dynar_get_as(split, 1, char *), "DW_AT_", 6) != 0)
1376 node_type = xbt_dynar_get_as(split, 1, char *);
1378 if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
1380 origin = xbt_dynar_get_as(split, 2, char *);
1381 xbt_str_ltrim(origin, "<0x");
1382 xbt_str_rtrim(origin, ">");
1384 subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, origin);
1385 subroutine_frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
1387 }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
1389 subroutine_frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1391 }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
1393 subroutine_frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1396 read = getline(&line, &n, fp);
1402 read = getline(&line, &n, fp);
1408 xbt_dynar_free(&split);
1415 static dw_location_t get_location(xbt_dict_t location_list, char *expr){
1417 dw_location_t loc = xbt_new0(s_dw_location_t, 1);
1419 if(location_list != NULL){
1421 char *key = bprintf("%d", (int)strtoul(expr, NULL, 16));
1422 loc->type = e_dw_loclist;
1423 loc->location.loclist = (xbt_dynar_t)xbt_dict_get_or_null(location_list, key);
1425 XBT_INFO("Key not found in loclist");
1431 char *tok = NULL, *tok2 = NULL;
1433 xbt_dynar_t tokens1 = xbt_str_split(expr, ";");
1434 xbt_dynar_t tokens2;
1436 loc->type = e_dw_compose;
1437 loc->location.compose = xbt_dynar_new(sizeof(dw_location_t), NULL);
1439 while(cursor < xbt_dynar_length(tokens1)){
1441 tok = xbt_dynar_get_as(tokens1, cursor, char*);
1442 tokens2 = xbt_str_split(tok, " ");
1443 tok2 = xbt_dynar_get_as(tokens2, 0, char*);
1445 if(strncmp(tok2, "DW_OP_reg", 9) == 0){
1446 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1447 new_element->type = e_dw_register;
1448 new_element->location.reg = atoi(strtok(tok2, "DW_OP_reg"));
1449 xbt_dynar_push(loc->location.compose, &new_element);
1450 }else if(strcmp(tok2, "DW_OP_fbreg:") == 0){
1451 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1452 new_element->type = e_dw_fbregister_op;
1453 new_element->location.fbreg_op = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1454 xbt_dynar_push(loc->location.compose, &new_element);
1455 }else if(strncmp(tok2, "DW_OP_breg", 10) == 0){
1456 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1457 new_element->type = e_dw_bregister_op;
1458 new_element->location.breg_op.reg = atoi(strtok(tok2, "DW_OP_breg"));
1459 new_element->location.breg_op.offset = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1460 xbt_dynar_push(loc->location.compose, &new_element);
1461 }else if(strncmp(tok2, "DW_OP_lit", 9) == 0){
1462 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1463 new_element->type = e_dw_lit;
1464 new_element->location.lit = atoi(strtok(tok2, "DW_OP_lit"));
1465 xbt_dynar_push(loc->location.compose, &new_element);
1466 }else if(strcmp(tok2, "DW_OP_piece:") == 0){
1467 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1468 new_element->type = e_dw_piece;
1469 new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1470 /*if(strlen(xbt_dynar_get_as(tokens2, 1, char*)) > 1)
1471 new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1473 new_element->location.piece = xbt_dynar_get_as(tokens2, 1, char*)[0] - '0';*/
1474 xbt_dynar_push(loc->location.compose, &new_element);
1475 }else if(strcmp(tok2, "DW_OP_plus_uconst:") == 0){
1476 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1477 new_element->type = e_dw_plus_uconst;
1478 new_element->location.plus_uconst = atoi(xbt_dynar_get_as(tokens2, 1, char *));
1479 xbt_dynar_push(loc->location.compose, &new_element);
1480 }else if(strcmp(tok, "DW_OP_abs") == 0 ||
1481 strcmp(tok, "DW_OP_and") == 0 ||
1482 strcmp(tok, "DW_OP_div") == 0 ||
1483 strcmp(tok, "DW_OP_minus") == 0 ||
1484 strcmp(tok, "DW_OP_mod") == 0 ||
1485 strcmp(tok, "DW_OP_mul") == 0 ||
1486 strcmp(tok, "DW_OP_neg") == 0 ||
1487 strcmp(tok, "DW_OP_not") == 0 ||
1488 strcmp(tok, "DW_OP_or") == 0 ||
1489 strcmp(tok, "DW_OP_plus") == 0){
1490 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1491 new_element->type = e_dw_arithmetic;
1492 new_element->location.arithmetic = strdup(strtok(tok2, "DW_OP_"));
1493 xbt_dynar_push(loc->location.compose, &new_element);
1494 }else if(strcmp(tok, "DW_OP_stack_value") == 0){
1495 }else if(strcmp(tok2, "DW_OP_deref_size:") == 0){
1496 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1497 new_element->type = e_dw_deref;
1498 new_element->location.deref_size = (unsigned int short) atoi(xbt_dynar_get_as(tokens2, 1, char*));
1499 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1500 new_element->location.deref_size = atoi(xbt_dynar_get_as(tokens, cursor, char*));
1502 new_element->location.deref_size = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
1503 xbt_dynar_push(loc->location.compose, &new_element);
1504 }else if(strcmp(tok, "DW_OP_deref") == 0){
1505 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1506 new_element->type = e_dw_deref;
1507 new_element->location.deref_size = sizeof(void *);
1508 xbt_dynar_push(loc->location.compose, &new_element);
1509 }else if(strcmp(tok2, "DW_OP_constu:") == 0){
1510 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1511 new_element->type = e_dw_uconstant;
1512 new_element->location.uconstant.bytes = 1;
1513 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1514 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1515 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens, cursor, char*)));
1517 new_element->location.uconstant.value = (unsigned long int)(xbt_dynar_get_as(tokens, cursor, char*)[0] - '0');*/
1518 xbt_dynar_push(loc->location.compose, &new_element);
1519 }else if(strcmp(tok2, "DW_OP_consts:") == 0){
1520 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1521 new_element->type = e_dw_sconstant;
1522 new_element->location.sconstant.bytes = 1;
1523 new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1524 xbt_dynar_push(loc->location.compose, &new_element);
1525 }else if(strcmp(tok2, "DW_OP_const1u:") == 0 ||
1526 strcmp(tok2, "DW_OP_const2u:") == 0 ||
1527 strcmp(tok2, "DW_OP_const4u:") == 0 ||
1528 strcmp(tok2, "DW_OP_const8u:") == 0){
1529 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1530 new_element->type = e_dw_uconstant;
1531 new_element->location.uconstant.bytes = tok2[11] - '0';
1532 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1533 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1534 new_element->location.constant.value = atoi(xbt_dynar_get_as(tokens, cursor, char*));
1536 new_element->location.constant.value = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
1537 xbt_dynar_push(loc->location.compose, &new_element);
1538 }else if(strcmp(tok, "DW_OP_const1s") == 0 ||
1539 strcmp(tok, "DW_OP_const2s") == 0 ||
1540 strcmp(tok, "DW_OP_const4s") == 0 ||
1541 strcmp(tok, "DW_OP_const8s") == 0){
1542 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1543 new_element->type = e_dw_sconstant;
1544 new_element->location.sconstant.bytes = tok2[11] - '0';
1545 new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1546 xbt_dynar_push(loc->location.compose, &new_element);
1548 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1549 new_element->type = e_dw_unsupported;
1550 xbt_dynar_push(loc->location.compose, &new_element);
1554 xbt_dynar_free(&tokens2);
1558 xbt_dynar_free(&tokens1);
1567 void print_local_variables(xbt_dict_t list){
1569 dw_location_entry_t entry;
1570 dw_location_t location_entry;
1571 unsigned int cursor3 = 0, cursor4 = 0;
1572 xbt_dict_cursor_t cursor = 0, cursor2 = 0;
1574 char *frame_name, *variable_name;
1575 dw_frame_t current_frame;
1576 dw_local_variable_t current_variable;
1578 xbt_dict_foreach(list, cursor, frame_name, current_frame){
1579 fprintf(stderr, "Frame name : %s\n", current_frame->name);
1580 fprintf(stderr, "Location type : %d\n", current_frame->frame_base->type);
1581 xbt_dict_foreach((xbt_dict_t)current_frame->variables, cursor2, variable_name, current_variable){
1582 fprintf(stderr, "Name : %s\n", current_variable->name);
1583 if(current_variable->location == NULL)
1585 fprintf(stderr, "Location type : %d\n", current_variable->location->type);
1586 switch(current_variable->location->type){
1588 xbt_dynar_foreach(current_variable->location->location.loclist, cursor3, entry){
1589 fprintf(stderr, "Lowpc : %lx, Highpc : %lx,", entry->lowpc, entry->highpc);
1590 switch(entry->location->type){
1591 case e_dw_register :
1592 fprintf(stderr, " Location : in register %d\n", entry->location->location.reg);
1594 case e_dw_bregister_op:
1595 fprintf(stderr, " Location : Add %d to the value in register %d\n", entry->location->location.breg_op.offset, entry->location->location.breg_op.reg);
1598 fprintf(stderr, "Value already kwnown : %d\n", entry->location->location.lit);
1600 case e_dw_fbregister_op:
1601 fprintf(stderr, " Location : %d bytes from logical frame pointer\n", entry->location->location.fbreg_op);
1604 fprintf(stderr, " Location :\n");
1605 xbt_dynar_foreach(entry->location->location.compose, cursor4, location_entry){
1606 switch(location_entry->type){
1607 case e_dw_register :
1608 fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
1610 case e_dw_bregister_op:
1611 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);
1614 fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
1616 case e_dw_fbregister_op:
1617 fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
1620 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);
1622 case e_dw_arithmetic :
1623 fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
1626 fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
1628 case e_dw_uconstant :
1629 fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
1631 case e_dw_sconstant :
1632 fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
1635 fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
1641 fprintf(stderr, "Location type not supported\n");
1648 fprintf(stderr, "Location :\n");
1649 xbt_dynar_foreach(current_variable->location->location.compose, cursor4, location_entry){
1650 switch(location_entry->type){
1651 case e_dw_register :
1652 fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
1654 case e_dw_bregister_op:
1655 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);
1658 fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
1660 case e_dw_fbregister_op:
1661 fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
1664 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);
1666 case e_dw_arithmetic :
1667 fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
1670 fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
1672 case e_dw_uconstant :
1673 fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
1675 case e_dw_sconstant :
1676 fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
1679 fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
1685 fprintf(stderr, "Location type not supported\n");
1693 static size_t data_bss_ignore_size(void *address){
1694 unsigned int cursor = 0;
1696 int end = xbt_dynar_length(mc_data_bss_comparison_ignore) - 1;
1697 mc_data_bss_ignore_variable_t var;
1699 while(start <= end){
1700 cursor = (start + end) / 2;
1701 var = (mc_data_bss_ignore_variable_t)xbt_dynar_get_as(mc_data_bss_comparison_ignore, cursor, mc_data_bss_ignore_variable_t);
1702 if(var->address == address)
1704 if(var->address < address){
1705 if((void *)((char *)var->address + var->size) > address)
1706 return (char *)var->address + var->size - (char*)address;
1710 if(var->address > address)
1718 static void MC_get_global_variables(char *elf_file){
1722 char *command = bprintf("objdump -t -j .data -j .bss %s", elf_file);
1724 fp = popen(command, "r");
1727 perror("popen failed");
1731 if(mc_global_variables == NULL)
1732 mc_global_variables = xbt_dynar_new(sizeof(global_variable_t), global_variable_free_voidp);
1738 xbt_dynar_t line_tokens = NULL;
1739 unsigned long offset;
1741 int type = strcmp(elf_file, xbt_binary_name); /* 0 = binary, other = libsimgrid */
1743 while ((read = getline(&line, &n, fp)) != -1){
1748 /* Wipeout the new line character */
1749 line[read - 1] = '\0';
1751 xbt_str_strip_spaces(line);
1752 xbt_str_ltrim(line, NULL);
1754 line_tokens = xbt_str_split(line, NULL);
1756 if(xbt_dynar_length(line_tokens) <= 4 || strcmp(xbt_dynar_get_as(line_tokens, 0, char *), "SYMBOL") == 0)
1759 if((strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "__gcov", 6) == 0)
1760 || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "gcov", 4) == 0)
1761 || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), ".data") == 0)
1762 || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), ".bss") == 0)
1763 || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "stderr", 6) == 0)
1764 || ((size_t)strtoul(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 2, char*), NULL, 16) == 0))
1767 global_variable_t var = xbt_new0(s_global_variable_t, 1);
1770 var->address = (void *)strtoul(xbt_dynar_get_as(line_tokens, 0, char*), NULL, 16);
1772 offset = strtoul(xbt_dynar_get_as(line_tokens, 0, char*), NULL, 16);
1773 var->address = (char *)start_text_libsimgrid+offset;
1776 var->size = (size_t)strtoul(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 2, char*), NULL, 16);
1777 var->name = strdup(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*));
1779 if(data_bss_ignore_size(var->address) > 0)
1780 global_variable_free(var);
1782 xbt_dynar_push(mc_global_variables, &var);
1784 xbt_dynar_free(&line_tokens);
1794 void global_variable_free(global_variable_t v){
1799 void global_variable_free_voidp(void *v){
1800 global_variable_free((global_variable_t) * (void **) v);