1 /* Copyright (c) 2008-2013 Da SimGrid Team. All rights reserved. */
3 /* This program is free software; you can redistribute it and/or modify it
4 * under the terms of the license (GNU LGPL) which comes with this package. */
11 #include "simgrid/sg_config.h"
12 #include "../surf/surf_private.h"
13 #include "../simix/smx_private.h"
14 #include "../xbt/mmalloc/mmprivate.h"
16 #include "mc_private.h"
17 #include "xbt/automaton.h"
20 XBT_LOG_NEW_CATEGORY(mc, "All MC categories");
21 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_global, mc,
22 "Logging specific to MC (global)");
24 /* Configuration support */
25 e_mc_reduce_t mc_reduce_kind=e_mc_reduce_unset;
27 int _sg_do_model_check = 0;
28 int _sg_mc_checkpoint=0;
29 char* _sg_mc_property_file=NULL;
31 int _sg_mc_max_depth=1000;
33 char *_sg_mc_dot_output_file = NULL;
35 extern int _sg_init_status;
36 void _mc_cfg_cb_reduce(const char *name, int pos) {
37 if (_sg_init_status && !_sg_do_model_check) {
38 xbt_die("You are specifying a reduction strategy after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
40 char *val= xbt_cfg_get_string(_sg_cfg_set, name);
41 if (!strcasecmp(val,"none")) {
42 mc_reduce_kind = e_mc_reduce_none;
43 } else if (!strcasecmp(val,"dpor")) {
44 mc_reduce_kind = e_mc_reduce_dpor;
46 xbt_die("configuration option %s can only take 'none' or 'dpor' as a value",name);
50 void _mc_cfg_cb_checkpoint(const char *name, int pos) {
51 if (_sg_init_status && !_sg_do_model_check) {
52 xbt_die("You are specifying a checkpointing value after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
54 _sg_mc_checkpoint = xbt_cfg_get_int(_sg_cfg_set, name);
56 void _mc_cfg_cb_property(const char *name, int pos) {
57 if (_sg_init_status && !_sg_do_model_check) {
58 xbt_die("You are specifying a property after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
60 _sg_mc_property_file= xbt_cfg_get_string(_sg_cfg_set, name);
63 void _mc_cfg_cb_timeout(const char *name, int pos) {
64 if (_sg_init_status && !_sg_do_model_check) {
65 xbt_die("You are specifying a value to enable/disable timeout for wait requests after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
67 _sg_mc_timeout= xbt_cfg_get_int(_sg_cfg_set, name);
70 void _mc_cfg_cb_max_depth(const char *name, int pos) {
71 if (_sg_init_status && !_sg_do_model_check) {
72 xbt_die("You are specifying a max depth value after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
74 _sg_mc_max_depth= xbt_cfg_get_int(_sg_cfg_set, name);
77 void _mc_cfg_cb_visited(const char *name, int pos) {
78 if (_sg_init_status && !_sg_do_model_check) {
79 xbt_die("You are specifying a number of stored visited states after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
81 _sg_mc_visited= xbt_cfg_get_int(_sg_cfg_set, name);
84 void _mc_cfg_cb_dot_output(const char *name, int pos) {
85 if (_sg_init_status && !_sg_do_model_check) {
86 xbt_die("You are specifying a file name for a dot output of graph state after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
88 _sg_mc_dot_output_file= xbt_cfg_get_string(_sg_cfg_set, name);
91 /* MC global data structures */
93 mc_state_t mc_current_state = NULL;
94 char mc_replay_mode = FALSE;
95 double *mc_time = NULL;
96 mc_comparison_times_t mc_comp_times = NULL;
97 double mc_snapshot_comparison_time;
98 mc_stats_t mc_stats = NULL;
102 xbt_fifo_t mc_stack_safety = NULL;
103 mc_global_t initial_state_safety = NULL;
107 xbt_fifo_t mc_stack_liveness = NULL;
108 mc_global_t initial_state_liveness = NULL;
112 xbt_dict_t mc_local_variables = NULL;
114 xbt_dynar_t mc_global_variables = NULL;
116 /* Ignore mechanism */
117 xbt_dynar_t mc_stack_comparison_ignore;
118 xbt_dynar_t mc_data_bss_comparison_ignore;
119 extern xbt_dynar_t mc_heap_comparison_ignore;
120 extern xbt_dynar_t stacks_areas;
122 FILE *dot_output = NULL;
123 const char* colors[10];
125 xbt_automaton_t _mc_property_automaton = NULL;
127 /* Static functions */
129 static void MC_assert_pair(int prop);
130 static dw_location_t get_location(xbt_dict_t location_list, char *expr);
131 static dw_frame_t get_frame_by_offset(xbt_dict_t all_variables, unsigned long int offset);
132 static size_t data_bss_ignore_size(void *address);
133 static void MC_get_global_variables(char *elf_file);
135 void MC_do_the_modelcheck_for_real() {
138 mc_comp_times = xbt_new0(s_mc_comparison_times_t, 1);
141 if((_sg_mc_dot_output_file != NULL) && (_sg_mc_dot_output_file[0]!='\0'))
142 MC_init_dot_output();
144 if (!_sg_mc_property_file || _sg_mc_property_file[0]=='\0') {
145 if (mc_reduce_kind==e_mc_reduce_unset)
146 mc_reduce_kind=e_mc_reduce_dpor;
148 XBT_INFO("Check a safety property");
149 MC_modelcheck_safety();
153 if (mc_reduce_kind==e_mc_reduce_unset)
154 mc_reduce_kind=e_mc_reduce_none;
156 XBT_INFO("Check the liveness property %s",_sg_mc_property_file);
157 MC_automaton_load(_sg_mc_property_file);
158 MC_modelcheck_liveness();
163 void MC_compare(void){
169 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
173 /* Initialize the data structures that must be persistent across every
174 iteration of the model-checker (in RAW memory) */
178 MC_init_memory_map_info();
180 mc_local_variables = xbt_dict_new_homogeneous(NULL);
182 /* Get local variables in binary for state equality detection */
183 xbt_dict_t binary_location_list = MC_get_location_list(xbt_binary_name);
184 MC_get_local_variables(xbt_binary_name, binary_location_list, &mc_local_variables);
186 /* Get local variables in libsimgrid for state equality detection */
187 xbt_dict_t libsimgrid_location_list = MC_get_location_list(libsimgrid_path);
188 MC_get_local_variables(libsimgrid_path, libsimgrid_location_list, &mc_local_variables);
190 xbt_dict_free(&libsimgrid_location_list);
191 xbt_dict_free(&binary_location_list);
193 /* Get .plt section (start and end addresses) for data libsimgrid and data program comparison */
194 get_libsimgrid_plt_section();
195 get_binary_plt_section();
197 /* Get global variables */
198 MC_get_global_variables(xbt_binary_name);
199 MC_get_global_variables(libsimgrid_path);
203 /* Ignore some variables from xbt/ex.h used by exception e for stacks comparison */
204 MC_ignore_stack("e", "*");
205 MC_ignore_stack("__ex_cleanup", "*");
206 MC_ignore_stack("__ex_mctx_en", "*");
207 MC_ignore_stack("__ex_mctx_me", "*");
208 MC_ignore_stack("__xbt_ex_ctx_ptr", "*");
209 MC_ignore_stack("_log_ev", "*");
210 MC_ignore_stack("_throw_ctx", "*");
211 MC_ignore_stack("ctx", "*");
213 MC_ignore_stack("next_context", "smx_ctx_sysv_suspend_serial");
214 MC_ignore_stack("i", "smx_ctx_sysv_suspend_serial");
216 MC_ignore_data_bss(&mc_comp_times, sizeof(mc_comp_times));
217 MC_ignore_data_bss(&mc_snapshot_comparison_time, sizeof(mc_snapshot_comparison_time));
218 MC_ignore_data_bss(&mc_time, sizeof(mc_time));
225 void MC_init_dot_output(){
232 colors[5] = "purple";
233 colors[6] = "yellow";
234 colors[7] = "orange";
236 dot_output = fopen(_sg_mc_dot_output_file, "w");
238 if(dot_output == NULL){
239 perror("Error open dot output file");
243 fprintf(dot_output, "digraph graphname{\n fixedsize=true; rankdir=TB; ranksep=.20; edge [fontsize=12]; node [fontsize=10, shape=circle,width=.5 ]; graph [resolution=20, fontsize=10];\n");
247 void MC_modelcheck_safety(void)
249 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
251 /* Check if MC is already initialized */
252 if (initial_state_safety)
255 mc_time = xbt_new0(double, simix_process_maxpid);
257 /* mc_time refers to clock for each process -> ignore it for heap comparison */
258 MC_ignore_heap(mc_time, simix_process_maxpid * sizeof(double));
260 /* Initialize the data structures that must be persistent across every
261 iteration of the model-checker (in RAW memory) */
265 /* Initialize statistics */
266 mc_stats = xbt_new0(s_mc_stats_t, 1);
267 mc_stats->state_size = 1;
269 /* Create exploration stack */
270 mc_stack_safety = xbt_fifo_new();
274 if(_sg_mc_visited > 0){
278 MC_init_memory_map_info();
279 get_libsimgrid_plt_section();
280 get_binary_plt_section();
287 /* Save the initial state */
288 initial_state_safety = xbt_new0(s_mc_global_t, 1);
289 initial_state_safety->snapshot = MC_take_snapshot();
300 void MC_modelcheck_liveness(){
302 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
306 mc_time = xbt_new0(double, simix_process_maxpid);
308 /* mc_time refers to clock for each process -> ignore it for heap comparison */
309 MC_ignore_heap(mc_time, simix_process_maxpid * sizeof(double));
313 /* Initialize statistics */
314 mc_stats = xbt_new0(s_mc_stats_t, 1);
315 mc_stats->state_size = 1;
317 /* Create exploration stack */
318 mc_stack_liveness = xbt_fifo_new();
320 /* Create the initial state */
321 initial_state_liveness = xbt_new0(s_mc_global_t, 1);
328 MC_print_statistics(mc_stats);
340 if((_sg_mc_dot_output_file != NULL) && (_sg_mc_dot_output_file[0]!='\0')){
341 fprintf(dot_output, "}\n");
351 int SIMIX_pre_mc_random(smx_simcall_t simcall){
353 return simcall->mc_value;
359 /*FIXME: return mc_current_state->executed_transition->random.value;*/
360 return simcall_mc_random();
364 * \brief Schedules all the process that are ready to run
366 void MC_wait_for_requests(void)
368 smx_process_t process;
372 while (!xbt_dynar_is_empty(simix_global->process_to_run)) {
373 SIMIX_process_runall();
374 xbt_dynar_foreach(simix_global->process_that_ran, iter, process) {
375 req = &process->simcall;
376 if (req->call != SIMCALL_NONE && !MC_request_is_visible(req))
377 SIMIX_simcall_pre(req, 0);
382 int MC_deadlock_check()
384 int deadlock = FALSE;
385 smx_process_t process;
386 if(xbt_swag_size(simix_global->process_list)){
388 xbt_swag_foreach(process, simix_global->process_list){
389 if(process->simcall.call != SIMCALL_NONE
390 && MC_request_is_enabled(&process->simcall)){
400 * \brief Re-executes from the state at position start all the transitions indicated by
401 * a given model-checker stack.
402 * \param stack The stack with the transitions to execute.
403 * \param start Start index to begin the re-execution.
405 void MC_replay(xbt_fifo_t stack, int start)
407 int raw_mem = (mmalloc_get_current_heap() == raw_heap);
409 int value, i = 1, count = 1;
411 smx_simcall_t req = NULL, saved_req = NULL;
412 xbt_fifo_item_t item, start_item;
414 smx_process_t process = NULL;
416 XBT_DEBUG("**** Begin Replay ****");
419 /* Restore the initial state */
420 MC_restore_snapshot(initial_state_safety->snapshot);
421 /* At the moment of taking the snapshot the raw heap was set, so restoring
422 * it will set it back again, we have to unset it to continue */
426 start_item = xbt_fifo_get_last_item(stack);
429 start_item = xbt_fifo_get_prev_item(start_item);
435 xbt_dict_reset(first_enabled_state);
436 xbt_swag_foreach(process, simix_global->process_list){
437 if(MC_process_is_enabled(process)){
438 char *key = bprintf("%lu", process->pid);
439 char *data = bprintf("%d", count);
440 xbt_dict_set(first_enabled_state, key, data, NULL);
447 /* Traverse the stack from the state at position start and re-execute the transitions */
448 for (item = start_item;
449 item != xbt_fifo_get_first_item(stack);
450 item = xbt_fifo_get_prev_item(item)) {
452 state = (mc_state_t) xbt_fifo_get_item_content(item);
453 saved_req = MC_state_get_executed_request(state, &value);
456 char *key = bprintf("%lu", saved_req->issuer->pid);
457 xbt_dict_remove(first_enabled_state, key);
462 /* because we got a copy of the executed request, we have to fetch the
463 real one, pointed by the request field of the issuer process */
464 req = &saved_req->issuer->simcall;
466 /* Debug information */
467 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
468 req_str = MC_request_to_string(req, value);
469 XBT_DEBUG("Replay: %s (%p)", req_str, state);
474 SIMIX_simcall_pre(req, value);
475 MC_wait_for_requests();
480 /* Insert in dict all enabled processes */
481 xbt_swag_foreach(process, simix_global->process_list){
482 if(MC_process_is_enabled(process) /*&& !MC_state_process_is_done(state, process)*/){
483 char *key = bprintf("%lu", process->pid);
484 if(xbt_dict_get_or_null(first_enabled_state, key) == NULL){
485 char *data = bprintf("%d", count);
486 xbt_dict_set(first_enabled_state, key, data, NULL);
493 /* Update statistics */
494 mc_stats->visited_states++;
495 mc_stats->executed_transitions++;
499 XBT_DEBUG("**** End Replay ****");
509 void MC_replay_liveness(xbt_fifo_t stack, int all_stack)
512 initial_state_liveness->raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
516 smx_simcall_t req = NULL, saved_req = NULL;
517 xbt_fifo_item_t item;
522 XBT_DEBUG("**** Begin Replay ****");
524 /* Restore the initial state */
525 MC_restore_snapshot(initial_state_liveness->snapshot);
527 /* At the moment of taking the snapshot the raw heap was set, so restoring
528 * it will set it back again, we have to unset it to continue */
529 if(!initial_state_liveness->raw_mem_set)
534 item = xbt_fifo_get_last_item(stack);
536 while(depth <= xbt_fifo_size(stack)){
538 pair = (mc_pair_t) xbt_fifo_get_item_content(item);
539 state = (mc_state_t) pair->graph_state;
541 if(pair->requests > 0){
543 saved_req = MC_state_get_executed_request(state, &value);
544 //XBT_DEBUG("SavedReq->call %u", saved_req->call);
546 if(saved_req != NULL){
547 /* because we got a copy of the executed request, we have to fetch the
548 real one, pointed by the request field of the issuer process */
549 req = &saved_req->issuer->simcall;
550 //XBT_DEBUG("Req->call %u", req->call);
552 /* Debug information */
553 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
554 req_str = MC_request_to_string(req, value);
555 XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
561 SIMIX_simcall_pre(req, value);
562 MC_wait_for_requests();
567 /* Update statistics */
568 mc_stats->visited_pairs++;
569 mc_stats->executed_transitions++;
571 item = xbt_fifo_get_prev_item(item);
576 /* Traverse the stack from the initial state and re-execute the transitions */
577 for (item = xbt_fifo_get_last_item(stack);
578 item != xbt_fifo_get_first_item(stack);
579 item = xbt_fifo_get_prev_item(item)) {
581 pair = (mc_pair_t) xbt_fifo_get_item_content(item);
582 state = (mc_state_t) pair->graph_state;
584 if(pair->requests > 0){
586 saved_req = MC_state_get_executed_request(state, &value);
587 //XBT_DEBUG("SavedReq->call %u", saved_req->call);
589 if(saved_req != NULL){
590 /* because we got a copy of the executed request, we have to fetch the
591 real one, pointed by the request field of the issuer process */
592 req = &saved_req->issuer->simcall;
593 //XBT_DEBUG("Req->call %u", req->call);
595 /* Debug information */
596 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
597 req_str = MC_request_to_string(req, value);
598 XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
604 SIMIX_simcall_pre(req, value);
605 MC_wait_for_requests();
610 /* Update statistics */
611 mc_stats->visited_pairs++;
612 mc_stats->executed_transitions++;
616 XBT_DEBUG("**** End Replay ****");
618 if(initial_state_liveness->raw_mem_set)
626 * \brief Dumps the contents of a model-checker's stack and shows the actual
628 * \param stack The stack to dump
630 void MC_dump_stack_safety(xbt_fifo_t stack)
633 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
635 MC_show_stack_safety(stack);
637 if(!_sg_mc_checkpoint){
642 while ((state = (mc_state_t) xbt_fifo_pop(stack)) != NULL)
643 MC_state_delete(state);
656 void MC_show_stack_safety(xbt_fifo_t stack)
660 xbt_fifo_item_t item;
662 char *req_str = NULL;
664 for (item = xbt_fifo_get_last_item(stack);
665 (item ? (state = (mc_state_t) (xbt_fifo_get_item_content(item)))
666 : (NULL)); item = xbt_fifo_get_prev_item(item)) {
667 req = MC_state_get_executed_request(state, &value);
669 req_str = MC_request_to_string(req, value);
670 XBT_INFO("%s", req_str);
676 void MC_show_deadlock(smx_simcall_t req)
678 /*char *req_str = NULL;*/
679 XBT_INFO("**************************");
680 XBT_INFO("*** DEAD-LOCK DETECTED ***");
681 XBT_INFO("**************************");
682 XBT_INFO("Locked request:");
683 /*req_str = MC_request_to_string(req);
684 XBT_INFO("%s", req_str);
686 XBT_INFO("Counter-example execution trace:");
687 MC_dump_stack_safety(mc_stack_safety);
691 void MC_show_stack_liveness(xbt_fifo_t stack){
694 xbt_fifo_item_t item;
696 char *req_str = NULL;
698 for (item = xbt_fifo_get_last_item(stack);
699 (item ? (pair = (mc_pair_t) (xbt_fifo_get_item_content(item)))
700 : (NULL)); item = xbt_fifo_get_prev_item(item)) {
701 req = MC_state_get_executed_request(pair->graph_state, &value);
703 if(pair->requests>0){
704 req_str = MC_request_to_string(req, value);
705 XBT_INFO("%s", req_str);
708 XBT_INFO("End of system requests but evolution in Büchi automaton");
714 void MC_dump_stack_liveness(xbt_fifo_t stack){
716 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
721 while ((pair = (mc_pair_t) xbt_fifo_pop(stack)) != NULL)
722 MC_pair_delete(pair);
731 void MC_print_statistics(mc_stats_t stats)
733 if(stats->expanded_pairs == 0){
734 XBT_INFO("Expanded states = %lu", stats->expanded_states);
735 XBT_INFO("Visited states = %lu", stats->visited_states);
737 XBT_INFO("Expanded pairs = %lu", stats->expanded_pairs);
738 XBT_INFO("Visited pairs = %lu", stats->visited_pairs);
740 XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
743 void MC_assert(int prop)
745 if (MC_is_active() && !prop){
746 XBT_INFO("**************************");
747 XBT_INFO("*** PROPERTY NOT VALID ***");
748 XBT_INFO("**************************");
749 XBT_INFO("Counter-example execution trace:");
750 MC_dump_stack_safety(mc_stack_safety);
751 MC_print_statistics(mc_stats);
756 static void MC_assert_pair(int prop){
757 if (MC_is_active() && !prop) {
758 XBT_INFO("**************************");
759 XBT_INFO("*** PROPERTY NOT VALID ***");
760 XBT_INFO("**************************");
761 //XBT_INFO("Counter-example execution trace:");
762 MC_show_stack_liveness(mc_stack_liveness);
763 //MC_dump_snapshot_stack(mc_snapshot_stack);
764 MC_print_statistics(mc_stats);
769 void MC_process_clock_add(smx_process_t process, double amount)
771 mc_time[process->pid] += amount;
774 double MC_process_clock_get(smx_process_t process)
778 return mc_time[process->pid];
786 void MC_automaton_load(const char *file){
788 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
792 if (_mc_property_automaton == NULL)
793 _mc_property_automaton = xbt_automaton_new();
795 xbt_automaton_load(_mc_property_automaton,file);
804 void MC_automaton_new_propositional_symbol(const char* id, void* fct) {
806 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
810 if (_mc_property_automaton == NULL)
811 _mc_property_automaton = xbt_automaton_new();
813 xbt_automaton_propositional_symbol_new(_mc_property_automaton,id,fct);
822 /************ MC_ignore ***********/
824 void heap_ignore_region_free(mc_heap_ignore_region_t r){
828 void heap_ignore_region_free_voidp(void *r){
829 heap_ignore_region_free((mc_heap_ignore_region_t) * (void **) r);
832 void MC_ignore_heap(void *address, size_t size){
834 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
838 mc_heap_ignore_region_t region = NULL;
839 region = xbt_new0(s_mc_heap_ignore_region_t, 1);
840 region->address = address;
843 region->block = ((char*)address - (char*)((xbt_mheap_t)std_heap)->heapbase) / BLOCKSIZE + 1;
845 if(((xbt_mheap_t)std_heap)->heapinfo[region->block].type == 0){
846 region->fragment = -1;
847 ((xbt_mheap_t)std_heap)->heapinfo[region->block].busy_block.ignore = 1;
849 region->fragment = ((uintptr_t) (ADDR2UINT (address) % (BLOCKSIZE))) >> ((xbt_mheap_t)std_heap)->heapinfo[region->block].type;
850 ((xbt_mheap_t)std_heap)->heapinfo[region->block].busy_frag.ignore[region->fragment] = 1;
853 if(mc_heap_comparison_ignore == NULL){
854 mc_heap_comparison_ignore = xbt_dynar_new(sizeof(mc_heap_ignore_region_t), heap_ignore_region_free_voidp);
855 xbt_dynar_push(mc_heap_comparison_ignore, ®ion);
861 unsigned int cursor = 0;
862 mc_heap_ignore_region_t current_region = NULL;
864 int end = xbt_dynar_length(mc_heap_comparison_ignore) - 1;
867 cursor = (start + end) / 2;
868 current_region = (mc_heap_ignore_region_t)xbt_dynar_get_as(mc_heap_comparison_ignore, cursor, mc_heap_ignore_region_t);
869 if(current_region->address == address){
870 heap_ignore_region_free(region);
875 if(current_region->address < address)
877 if(current_region->address > address)
881 if(current_region->address < address)
882 xbt_dynar_insert_at(mc_heap_comparison_ignore, cursor + 1, ®ion);
884 xbt_dynar_insert_at(mc_heap_comparison_ignore, cursor, ®ion);
892 void MC_remove_ignore_heap(void *address, size_t size){
894 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
898 unsigned int cursor = 0;
900 int end = xbt_dynar_length(mc_heap_comparison_ignore) - 1;
901 mc_heap_ignore_region_t region;
902 int ignore_found = 0;
905 cursor = (start + end) / 2;
906 region = (mc_heap_ignore_region_t)xbt_dynar_get_as(mc_heap_comparison_ignore, cursor, mc_heap_ignore_region_t);
907 if(region->address == address){
911 if(region->address < address)
913 if(region->address > address){
914 if((char * )region->address <= ((char *)address + size)){
922 if(ignore_found == 1){
923 xbt_dynar_remove_at(mc_heap_comparison_ignore, cursor, NULL);
924 MC_remove_ignore_heap(address, size);
934 void MC_ignore_data_bss(void *address, size_t size){
936 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
940 if(mc_data_bss_comparison_ignore == NULL)
941 mc_data_bss_comparison_ignore = xbt_dynar_new(sizeof(mc_data_bss_ignore_variable_t), NULL);
943 mc_data_bss_ignore_variable_t var = NULL;
944 var = xbt_new0(s_mc_data_bss_ignore_variable_t, 1);
945 var->address = address;
948 if(xbt_dynar_is_empty(mc_data_bss_comparison_ignore)){
950 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, 0, &var);
954 unsigned int cursor = 0;
956 int end = xbt_dynar_length(mc_data_bss_comparison_ignore) - 1;
957 mc_data_bss_ignore_variable_t current_var = NULL;
960 cursor = (start + end) / 2;
961 current_var = (mc_data_bss_ignore_variable_t)xbt_dynar_get_as(mc_data_bss_comparison_ignore, cursor, mc_data_bss_ignore_variable_t);
962 if(current_var->address == address){
968 if(current_var->address < address)
970 if(current_var->address > address)
974 if(current_var->address < address)
975 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, cursor + 1, &var);
977 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, cursor, &var);
981 /* Remove variable from mc_global_variables */
983 if(mc_global_variables != NULL){
985 unsigned int cursor = 0;
987 int end = xbt_dynar_length(mc_global_variables) - 1;
988 global_variable_t current_var;
992 cursor = (start + end) / 2;
993 current_var = (global_variable_t)xbt_dynar_get_as(mc_global_variables, cursor, global_variable_t);
994 if(current_var->address == var->address){
998 if(current_var->address < address)
1000 if(current_var->address > address)
1005 xbt_dynar_remove_at(mc_global_variables, cursor, NULL);
1015 static size_t data_bss_ignore_size(void *address){
1016 unsigned int cursor = 0;
1018 int end = xbt_dynar_length(mc_data_bss_comparison_ignore) - 1;
1019 mc_data_bss_ignore_variable_t var;
1021 while(start <= end){
1022 cursor = (start + end) / 2;
1023 var = (mc_data_bss_ignore_variable_t)xbt_dynar_get_as(mc_data_bss_comparison_ignore, cursor, mc_data_bss_ignore_variable_t);
1024 if(var->address == address)
1026 if(var->address < address){
1027 if((void *)((char *)var->address + var->size) > address)
1028 return (char *)var->address + var->size - (char*)address;
1032 if(var->address > address)
1041 void MC_ignore_stack(const char *var_name, const char *frame_name){
1043 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
1047 if(mc_stack_comparison_ignore == NULL)
1048 mc_stack_comparison_ignore = xbt_dynar_new(sizeof(mc_stack_ignore_variable_t), NULL);
1050 if(xbt_dynar_is_empty(mc_stack_comparison_ignore)){
1052 mc_stack_ignore_variable_t var = NULL;
1053 var = xbt_new0(s_mc_stack_ignore_variable_t, 1);
1054 var->var_name = strdup(var_name);
1055 var->frame = strdup(frame_name);
1057 xbt_dynar_insert_at(mc_stack_comparison_ignore, 0, &var);
1061 unsigned int cursor = 0;
1063 int end = xbt_dynar_length(mc_stack_comparison_ignore) - 1;
1064 mc_stack_ignore_variable_t current_var = NULL;
1066 while(start <= end){
1067 cursor = (start + end) / 2;
1068 current_var = (mc_stack_ignore_variable_t)xbt_dynar_get_as(mc_stack_comparison_ignore, cursor, mc_stack_ignore_variable_t);
1069 if(strcmp(current_var->frame, frame_name) == 0){
1070 if(strcmp(current_var->var_name, var_name) == 0){
1076 if(strcmp(current_var->var_name, var_name) < 0)
1078 if(strcmp(current_var->var_name, var_name) > 0)
1081 if(strcmp(current_var->frame, frame_name) < 0)
1083 if(strcmp(current_var->frame, frame_name) > 0)
1087 mc_stack_ignore_variable_t var = NULL;
1088 var = xbt_new0(s_mc_stack_ignore_variable_t, 1);
1089 var->var_name = strdup(var_name);
1090 var->frame = strdup(frame_name);
1092 if(strcmp(current_var->frame, frame_name) < 0)
1093 xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor + 1, &var);
1095 xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor, &var);
1099 /* Remove variable from mc_local_variables */
1101 if(mc_local_variables != NULL){
1103 if(strcmp(frame_name, "*") != 0){
1104 dw_frame_t frame = xbt_dict_get_or_null(mc_local_variables, frame_name);
1106 xbt_dict_remove(frame->variables, var_name);
1118 void MC_new_stack_area(void *stack, char *name, void* context, size_t size){
1120 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
1123 if(stacks_areas == NULL)
1124 stacks_areas = xbt_dynar_new(sizeof(stack_region_t), NULL);
1126 stack_region_t region = NULL;
1127 region = xbt_new0(s_stack_region_t, 1);
1128 region->address = stack;
1129 region->process_name = strdup(name);
1130 region->context = context;
1131 region->size = size;
1132 region->block = ((char*)stack - (char*)((xbt_mheap_t)std_heap)->heapbase) / BLOCKSIZE + 1;
1133 xbt_dynar_push(stacks_areas, ®ion);
1141 /************ DWARF ***********/
1143 xbt_dict_t MC_get_location_list(const char *elf_file){
1145 char *command = bprintf("objdump -Wo %s", elf_file);
1147 FILE *fp = popen(command, "r");
1150 perror("popen for objdump failed");
1154 int debug = 0; /*Detect if the program has been compiled with -g */
1156 xbt_dict_t location_list = xbt_dict_new_homogeneous(NULL);
1157 char *line = NULL, *loc_expr = NULL;
1161 xbt_dynar_t split = NULL;
1163 while ((read = xbt_getline(&line, &n, fp)) != -1) {
1165 /* Wipeout the new line character */
1166 line[read - 1] = '\0';
1168 xbt_str_trim(line, NULL);
1173 if(strlen(line) == 0)
1178 if(strncmp(line, elf_file, strlen(elf_file)) == 0)
1181 if(strncmp(line, "Contents", 8) == 0)
1184 if(strncmp(line, "Offset", 6) == 0){
1191 XBT_INFO("Your program must be compiled with -g");
1195 xbt_dynar_t loclist = xbt_dynar_new(sizeof(dw_location_entry_t), NULL);
1197 xbt_str_strip_spaces(line);
1198 split = xbt_str_split(line, " ");
1200 while(read != -1 && strcmp("<End", (char *)xbt_dynar_get_as(split, 1, char *)) != 0){
1202 dw_location_entry_t new_entry = xbt_new0(s_dw_location_entry_t, 1);
1203 new_entry->lowpc = strtoul((char *)xbt_dynar_get_as(split, 1, char *), NULL, 16);
1204 new_entry->highpc = strtoul((char *)xbt_dynar_get_as(split, 2, char *), NULL, 16);
1207 while(cursor_remove < 3){
1208 xbt_dynar_remove_at(split, 0, NULL);
1212 loc_expr = xbt_str_join(split, " ");
1213 xbt_str_ltrim(loc_expr, "(");
1214 xbt_str_rtrim(loc_expr, ")");
1215 new_entry->location = get_location(NULL, loc_expr);
1217 xbt_dynar_push(loclist, &new_entry);
1219 xbt_dynar_free(&split);
1222 read = xbt_getline(&line, &n, fp);
1224 line[read - 1] = '\0';
1225 xbt_str_strip_spaces(line);
1226 split = xbt_str_split(line, " ");
1232 char *key = bprintf("%d", (int)strtoul((char *)xbt_dynar_get_as(split, 0, char *), NULL, 16));
1233 xbt_dict_set(location_list, key, loclist, NULL);
1236 xbt_dynar_free(&split);
1244 return location_list;
1247 static dw_frame_t get_frame_by_offset(xbt_dict_t all_variables, unsigned long int offset){
1249 xbt_dict_cursor_t cursor = NULL;
1253 xbt_dict_foreach(all_variables, cursor, name, res) {
1254 if(offset >= res->start && offset < res->end){
1255 xbt_dict_cursor_free(&cursor);
1260 xbt_dict_cursor_free(&cursor);
1265 void MC_get_local_variables(const char *elf_file, xbt_dict_t location_list, xbt_dict_t *all_variables){
1267 char *command = bprintf("objdump -Wi %s", elf_file);
1269 FILE *fp = popen(command, "r");
1272 perror("popen for objdump failed");
1274 char *line = NULL, *origin, *abstract_origin, *current_frame = NULL;
1277 int valid_variable = 1;
1278 char *node_type = NULL, *location_type = NULL, *variable_name = NULL, *loc_expr = NULL;
1279 xbt_dynar_t split = NULL, split2 = NULL;
1281 xbt_dict_t variables_origin = xbt_dict_new_homogeneous(NULL);
1282 xbt_dict_t subprograms_origin = xbt_dict_new_homogeneous(NULL);
1283 char *subprogram_name = NULL, *subprogram_start = NULL, *subprogram_end = NULL;
1284 int new_frame = 0, new_variable = 0;
1285 dw_frame_t variable_frame, subroutine_frame = NULL;
1287 read = xbt_getline(&line, &n, fp);
1289 while (read != -1) {
1292 read = xbt_getline(&line, &n, fp);
1296 /* Wipeout the new line character */
1297 line[read - 1] = '\0';
1299 if(strlen(line) == 0){
1300 read = xbt_getline(&line, &n, fp);
1304 xbt_str_ltrim(line, NULL);
1305 xbt_str_strip_spaces(line);
1308 read = xbt_getline(&line, &n, fp);
1312 xbt_dynar_free(&split);
1313 split = xbt_str_split(line, " ");
1316 node_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1318 if(strcmp(node_type, "(DW_TAG_subprogram)") == 0){ /* New frame */
1320 dw_frame_t frame = NULL;
1322 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1323 subprogram_start = strdup(strtok(NULL, "<"));
1324 xbt_str_rtrim(subprogram_start, ">:");
1326 read = xbt_getline(&line, &n, fp);
1331 read = xbt_getline(&line, &n, fp);
1335 /* Wipeout the new line character */
1336 line[read - 1] = '\0';
1338 if(strlen(line) == 0){
1339 read = xbt_getline(&line, &n, fp);
1343 xbt_dynar_free(&split);
1344 xbt_str_rtrim(line, NULL);
1345 xbt_str_strip_spaces(line);
1346 split = xbt_str_split(line, " ");
1348 node_type = xbt_dynar_get_as(split, 1, char *);
1350 if(strncmp(node_type, "DW_AT_", 6) != 0)
1353 if(strcmp(node_type, "DW_AT_sibling") == 0){
1355 subprogram_end = strdup(xbt_dynar_get_as(split, 3, char*));
1356 xbt_str_ltrim(subprogram_end, "<0x");
1357 xbt_str_rtrim(subprogram_end, ">");
1359 }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){ /* Frame already in dict */
1362 abstract_origin = strdup(xbt_dynar_get_as(split, 2, char*));
1363 xbt_str_ltrim(abstract_origin, "<0x");
1364 xbt_str_rtrim(abstract_origin, ">");
1365 subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, abstract_origin);
1366 frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
1367 xbt_free(abstract_origin);
1369 }else if(strcmp(node_type, "DW_AT_name") == 0){
1372 xbt_free(current_frame);
1373 frame = xbt_new0(s_dw_frame_t, 1);
1374 frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1375 frame->variables = xbt_dict_new_homogeneous(NULL);
1376 frame->frame_base = xbt_new0(s_dw_location_t, 1);
1377 current_frame = strdup(frame->name);
1379 xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
1381 }else if(strcmp(node_type, "DW_AT_frame_base") == 0){
1383 location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1385 if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
1387 frame->frame_base = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
1391 xbt_str_strip_spaces(line);
1392 split2 = xbt_str_split(line, "(");
1393 xbt_dynar_remove_at(split2, 0, NULL);
1394 loc_expr = xbt_str_join(split2, " ");
1395 xbt_str_rtrim(loc_expr, ")");
1396 frame->frame_base = get_location(NULL, loc_expr);
1397 xbt_dynar_free(&split2);
1402 }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
1405 frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1407 }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
1410 frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1412 }else if(strcmp(node_type, "DW_AT_MIPS_linkage_name:") == 0){
1414 xbt_free(frame->name);
1415 xbt_free(current_frame);
1416 frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1417 current_frame = strdup(frame->name);
1418 xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
1422 read = xbt_getline(&line, &n, fp);
1427 frame->start = strtoul(subprogram_start, NULL, 16);
1428 if(subprogram_end != NULL)
1429 frame->end = strtoul(subprogram_end, NULL, 16);
1430 xbt_dict_set(*all_variables, frame->name, frame, NULL);
1433 xbt_free(subprogram_start);
1434 xbt_free(subprogram_end);
1435 subprogram_end = NULL;
1438 }else if(strcmp(node_type, "(DW_TAG_variable)") == 0){ /* New variable */
1440 dw_local_variable_t var = NULL;
1442 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1443 origin = strdup(strtok(NULL, "<"));
1444 xbt_str_rtrim(origin, ">:");
1446 read = xbt_getline(&line, &n, fp);
1451 read = xbt_getline(&line, &n, fp);
1455 /* Wipeout the new line character */
1456 line[read - 1] = '\0';
1458 if(strlen(line) == 0){
1459 read = xbt_getline(&line, &n, fp);
1463 xbt_dynar_free(&split);
1464 xbt_str_rtrim(line, NULL);
1465 xbt_str_strip_spaces(line);
1466 split = xbt_str_split(line, " ");
1468 node_type = xbt_dynar_get_as(split, 1, char *);
1470 if(strncmp(node_type, "DW_AT_", 6) != 0)
1473 if(strcmp(node_type, "DW_AT_name") == 0){
1476 var = xbt_new0(s_dw_local_variable_t, 1);
1477 var->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1479 xbt_dict_set(variables_origin, origin, var->name, NULL);
1481 }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
1484 abstract_origin = xbt_dynar_get_as(split, 2, char *);
1485 xbt_str_ltrim(abstract_origin, "<0x");
1486 xbt_str_rtrim(abstract_origin, ">");
1488 variable_name = (char *)xbt_dict_get_or_null(variables_origin, abstract_origin);
1489 variable_frame = get_frame_by_offset(*all_variables, strtoul(abstract_origin, NULL, 16));
1490 var = xbt_dict_get_or_null(variable_frame->variables, variable_name);
1492 }else if(strcmp(node_type, "DW_AT_location") == 0){
1494 if(valid_variable == 1 && var != NULL){
1496 var->location = xbt_new0(s_dw_location_t, 1);
1498 location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1500 if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
1502 var->location = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
1506 xbt_str_strip_spaces(line);
1507 split2 = xbt_str_split(line, "(");
1508 xbt_dynar_remove_at(split2, 0, NULL);
1509 loc_expr = xbt_str_join(split2, " ");
1510 xbt_str_rtrim(loc_expr, ")");
1511 var->location = get_location(NULL, loc_expr);
1512 xbt_dynar_free(&split2);
1519 }else if(strcmp(node_type, "DW_AT_external") == 0){
1525 read = xbt_getline(&line, &n, fp);
1529 if(new_variable == 1 && valid_variable == 1){
1531 variable_frame = xbt_dict_get_or_null(*all_variables, current_frame);
1532 xbt_dict_set(variable_frame->variables, var->name, var, NULL);
1538 }else if(strcmp(node_type, "(DW_TAG_inlined_subroutine)") == 0){
1540 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1541 origin = strdup(strtok(NULL, "<"));
1542 xbt_str_rtrim(origin, ">:");
1544 read = xbt_getline(&line, &n, fp);
1548 /* Wipeout the new line character */
1549 line[read - 1] = '\0';
1552 read = xbt_getline(&line, &n, fp);
1556 if(strlen(line) == 0){
1557 read = xbt_getline(&line, &n, fp);
1561 xbt_dynar_free(&split);
1562 xbt_str_rtrim(line, NULL);
1563 xbt_str_strip_spaces(line);
1564 split = xbt_str_split(line, " ");
1566 if(strncmp(xbt_dynar_get_as(split, 1, char *), "DW_AT_", 6) != 0)
1569 node_type = xbt_dynar_get_as(split, 1, char *);
1571 if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
1573 origin = xbt_dynar_get_as(split, 2, char *);
1574 xbt_str_ltrim(origin, "<0x");
1575 xbt_str_rtrim(origin, ">");
1577 subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, origin);
1578 subroutine_frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
1580 }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
1582 subroutine_frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1584 }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
1586 subroutine_frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1589 read = xbt_getline(&line, &n, fp);
1595 read = xbt_getline(&line, &n, fp);
1601 xbt_dynar_free(&split);
1608 static dw_location_t get_location(xbt_dict_t location_list, char *expr){
1610 dw_location_t loc = xbt_new0(s_dw_location_t, 1);
1612 if(location_list != NULL){
1614 char *key = bprintf("%d", (int)strtoul(expr, NULL, 16));
1615 loc->type = e_dw_loclist;
1616 loc->location.loclist = (xbt_dynar_t)xbt_dict_get_or_null(location_list, key);
1617 if(loc->location.loclist == NULL)
1618 XBT_INFO("Key not found in loclist");
1625 char *tok = NULL, *tok2 = NULL;
1627 xbt_dynar_t tokens1 = xbt_str_split(expr, ";");
1628 xbt_dynar_t tokens2;
1630 loc->type = e_dw_compose;
1631 loc->location.compose = xbt_dynar_new(sizeof(dw_location_t), NULL);
1633 while(cursor < xbt_dynar_length(tokens1)){
1635 tok = xbt_dynar_get_as(tokens1, cursor, char*);
1636 tokens2 = xbt_str_split(tok, " ");
1637 tok2 = xbt_dynar_get_as(tokens2, 0, char*);
1639 if(strncmp(tok2, "DW_OP_reg", 9) == 0){
1640 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1641 new_element->type = e_dw_register;
1642 new_element->location.reg = atoi(strtok(tok2, "DW_OP_reg"));
1643 xbt_dynar_push(loc->location.compose, &new_element);
1644 }else if(strcmp(tok2, "DW_OP_fbreg:") == 0){
1645 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1646 new_element->type = e_dw_fbregister_op;
1647 new_element->location.fbreg_op = atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*));
1648 xbt_dynar_push(loc->location.compose, &new_element);
1649 }else if(strncmp(tok2, "DW_OP_breg", 10) == 0){
1650 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1651 new_element->type = e_dw_bregister_op;
1652 new_element->location.breg_op.reg = atoi(strtok(tok2, "DW_OP_breg"));
1653 new_element->location.breg_op.offset = atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*));
1654 xbt_dynar_push(loc->location.compose, &new_element);
1655 }else if(strncmp(tok2, "DW_OP_lit", 9) == 0){
1656 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1657 new_element->type = e_dw_lit;
1658 new_element->location.lit = atoi(strtok(tok2, "DW_OP_lit"));
1659 xbt_dynar_push(loc->location.compose, &new_element);
1660 }else if(strcmp(tok2, "DW_OP_piece:") == 0){
1661 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1662 new_element->type = e_dw_piece;
1663 new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*));
1664 /*if(strlen(xbt_dynar_get_as(tokens2, 1, char*)) > 1)
1665 new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1667 new_element->location.piece = xbt_dynar_get_as(tokens2, 1, char*)[0] - '0';*/
1668 xbt_dynar_push(loc->location.compose, &new_element);
1669 }else if(strcmp(tok2, "DW_OP_plus_uconst:") == 0){
1670 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1671 new_element->type = e_dw_plus_uconst;
1672 new_element->location.plus_uconst = atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char *));
1673 xbt_dynar_push(loc->location.compose, &new_element);
1674 }else if(strcmp(tok, "DW_OP_abs") == 0 ||
1675 strcmp(tok, "DW_OP_and") == 0 ||
1676 strcmp(tok, "DW_OP_div") == 0 ||
1677 strcmp(tok, "DW_OP_minus") == 0 ||
1678 strcmp(tok, "DW_OP_mod") == 0 ||
1679 strcmp(tok, "DW_OP_mul") == 0 ||
1680 strcmp(tok, "DW_OP_neg") == 0 ||
1681 strcmp(tok, "DW_OP_not") == 0 ||
1682 strcmp(tok, "DW_OP_or") == 0 ||
1683 strcmp(tok, "DW_OP_plus") == 0){
1684 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1685 new_element->type = e_dw_arithmetic;
1686 new_element->location.arithmetic = strdup(strtok(tok2, "DW_OP_"));
1687 xbt_dynar_push(loc->location.compose, &new_element);
1688 }else if(strcmp(tok, "DW_OP_stack_value") == 0){
1689 }else if(strcmp(tok2, "DW_OP_deref_size:") == 0){
1690 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1691 new_element->type = e_dw_deref;
1692 new_element->location.deref_size = (unsigned int short) atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*));
1693 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1694 new_element->location.deref_size = atoi(xbt_dynar_get_as(tokens, cursor, char*));
1696 new_element->location.deref_size = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
1697 xbt_dynar_push(loc->location.compose, &new_element);
1698 }else if(strcmp(tok, "DW_OP_deref") == 0){
1699 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1700 new_element->type = e_dw_deref;
1701 new_element->location.deref_size = sizeof(void *);
1702 xbt_dynar_push(loc->location.compose, &new_element);
1703 }else if(strcmp(tok2, "DW_OP_constu:") == 0){
1704 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1705 new_element->type = e_dw_uconstant;
1706 new_element->location.uconstant.bytes = 1;
1707 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*)));
1708 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1709 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens, cursor, char*)));
1711 new_element->location.uconstant.value = (unsigned long int)(xbt_dynar_get_as(tokens, cursor, char*)[0] - '0');*/
1712 xbt_dynar_push(loc->location.compose, &new_element);
1713 }else if(strcmp(tok2, "DW_OP_consts:") == 0){
1714 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1715 new_element->type = e_dw_sconstant;
1716 new_element->location.sconstant.bytes = 1;
1717 new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*)));
1718 xbt_dynar_push(loc->location.compose, &new_element);
1719 }else if(strcmp(tok2, "DW_OP_const1u:") == 0 ||
1720 strcmp(tok2, "DW_OP_const2u:") == 0 ||
1721 strcmp(tok2, "DW_OP_const4u:") == 0 ||
1722 strcmp(tok2, "DW_OP_const8u:") == 0){
1723 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1724 new_element->type = e_dw_uconstant;
1725 new_element->location.uconstant.bytes = tok2[11] - '0';
1726 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*)));
1727 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1728 new_element->location.constant.value = atoi(xbt_dynar_get_as(tokens, cursor, char*));
1730 new_element->location.constant.value = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
1731 xbt_dynar_push(loc->location.compose, &new_element);
1732 }else if(strcmp(tok, "DW_OP_const1s") == 0 ||
1733 strcmp(tok, "DW_OP_const2s") == 0 ||
1734 strcmp(tok, "DW_OP_const4s") == 0 ||
1735 strcmp(tok, "DW_OP_const8s") == 0){
1736 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1737 new_element->type = e_dw_sconstant;
1738 new_element->location.sconstant.bytes = tok2[11] - '0';
1739 new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*)));
1740 xbt_dynar_push(loc->location.compose, &new_element);
1742 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1743 new_element->type = e_dw_unsupported;
1744 xbt_dynar_push(loc->location.compose, &new_element);
1748 xbt_dynar_free(&tokens2);
1752 xbt_dynar_free(&tokens1);
1761 void print_local_variables(xbt_dict_t list){
1763 dw_location_entry_t entry;
1764 dw_location_t location_entry;
1765 unsigned int cursor3 = 0, cursor4 = 0;
1766 xbt_dict_cursor_t cursor = 0, cursor2 = 0;
1768 char *frame_name, *variable_name;
1769 dw_frame_t current_frame;
1770 dw_local_variable_t current_variable;
1772 xbt_dict_foreach(list, cursor, frame_name, current_frame){
1773 fprintf(stderr, "Frame name : %s\n", current_frame->name);
1774 fprintf(stderr, "Location type : %d\n", current_frame->frame_base->type);
1775 xbt_dict_foreach((xbt_dict_t)current_frame->variables, cursor2, variable_name, current_variable){
1776 fprintf(stderr, "Name : %s\n", current_variable->name);
1777 if(current_variable->location == NULL)
1779 fprintf(stderr, "Location type : %d\n", current_variable->location->type);
1780 switch(current_variable->location->type){
1782 xbt_dynar_foreach(current_variable->location->location.loclist, cursor3, entry){
1783 fprintf(stderr, "Lowpc : %lx, Highpc : %lx,", entry->lowpc, entry->highpc);
1784 switch(entry->location->type){
1785 case e_dw_register :
1786 fprintf(stderr, " Location : in register %d\n", entry->location->location.reg);
1788 case e_dw_bregister_op:
1789 fprintf(stderr, " Location : Add %d to the value in register %d\n", entry->location->location.breg_op.offset, entry->location->location.breg_op.reg);
1792 fprintf(stderr, "Value already kwnown : %d\n", entry->location->location.lit);
1794 case e_dw_fbregister_op:
1795 fprintf(stderr, " Location : %d bytes from logical frame pointer\n", entry->location->location.fbreg_op);
1798 fprintf(stderr, " Location :\n");
1799 xbt_dynar_foreach(entry->location->location.compose, cursor4, location_entry){
1800 switch(location_entry->type){
1801 case e_dw_register :
1802 fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
1804 case e_dw_bregister_op:
1805 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);
1808 fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
1810 case e_dw_fbregister_op:
1811 fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
1814 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);
1816 case e_dw_arithmetic :
1817 fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
1820 fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
1822 case e_dw_uconstant :
1823 fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
1825 case e_dw_sconstant :
1826 fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
1829 fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
1835 fprintf(stderr, "Location type not supported\n");
1842 fprintf(stderr, "Location :\n");
1843 xbt_dynar_foreach(current_variable->location->location.compose, cursor4, location_entry){
1844 switch(location_entry->type){
1845 case e_dw_register :
1846 fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
1848 case e_dw_bregister_op:
1849 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);
1852 fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
1854 case e_dw_fbregister_op:
1855 fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
1858 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);
1860 case e_dw_arithmetic :
1861 fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
1864 fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
1866 case e_dw_uconstant :
1867 fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
1869 case e_dw_sconstant :
1870 fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
1873 fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
1879 fprintf(stderr, "Location type not supported\n");
1887 static void MC_get_global_variables(char *elf_file){
1891 char *command = bprintf("objdump -t -j .data -j .bss %s", elf_file);
1893 fp = popen(command, "r");
1896 perror("popen failed");
1900 if(mc_global_variables == NULL)
1901 mc_global_variables = xbt_dynar_new(sizeof(global_variable_t), global_variable_free_voidp);
1907 xbt_dynar_t line_tokens = NULL;
1908 unsigned long offset;
1910 int type = strcmp(elf_file, xbt_binary_name); /* 0 = binary, other = libsimgrid */
1912 while ((read = xbt_getline(&line, &n, fp)) != -1){
1917 /* Wipeout the new line character */
1918 line[read - 1] = '\0';
1920 xbt_str_strip_spaces(line);
1921 xbt_str_ltrim(line, NULL);
1923 line_tokens = xbt_str_split(line, NULL);
1925 if(xbt_dynar_length(line_tokens) <= 4 || strcmp(xbt_dynar_get_as(line_tokens, 0, char *), "SYMBOL") == 0)
1928 if((strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "__gcov", 6) == 0)
1929 || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "gcov", 4) == 0)
1930 || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), ".data") == 0)
1931 || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), ".bss") == 0)
1932 || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "stderr", 6) == 0)
1933 || ((size_t)strtoul(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 2, char*), NULL, 16) == 0))
1936 global_variable_t var = xbt_new0(s_global_variable_t, 1);
1939 var->address = (void *)strtoul(xbt_dynar_get_as(line_tokens, 0, char*), NULL, 16);
1941 offset = strtoul(xbt_dynar_get_as(line_tokens, 0, char*), NULL, 16);
1942 var->address = (char *)start_text_libsimgrid+offset;
1945 var->size = (size_t)strtoul(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 2, char*), NULL, 16);
1946 var->name = strdup(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*));
1948 if(data_bss_ignore_size(var->address) > 0){
1949 global_variable_free(var);
1951 if(xbt_dynar_is_empty(mc_global_variables)){
1952 xbt_dynar_push(mc_global_variables, &var);
1954 unsigned int cursor = 0;
1956 int end = xbt_dynar_length(mc_global_variables) - 1;
1957 global_variable_t current_var = NULL;
1959 while(start <= end){
1960 cursor = (start + end) / 2;
1961 current_var = (global_variable_t)xbt_dynar_get_as(mc_global_variables, cursor, global_variable_t);
1962 if(current_var->address == var->address)
1964 if(current_var->address < var->address)
1966 if(current_var->address > var->address)
1970 if(current_var->address < var->address)
1971 xbt_dynar_insert_at(mc_global_variables, cursor + 1, &var);
1973 xbt_dynar_insert_at(mc_global_variables, cursor, &var);
1977 xbt_dynar_free(&line_tokens);
1987 void global_variable_free(global_variable_t v){
1992 void global_variable_free_voidp(void *v){
1993 global_variable_free((global_variable_t) * (void **) v);