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_boolean(_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_boolean(_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[13];
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_property_file || _sg_mc_property_file[0]=='\0') {
142 if (mc_reduce_kind==e_mc_reduce_unset)
143 mc_reduce_kind=e_mc_reduce_dpor;
145 XBT_INFO("Check a safety property");
146 MC_modelcheck_safety();
150 if (mc_reduce_kind==e_mc_reduce_unset)
151 mc_reduce_kind=e_mc_reduce_none;
153 XBT_INFO("Check the liveness property %s",_sg_mc_property_file);
154 MC_automaton_load(_sg_mc_property_file);
155 MC_modelcheck_liveness();
160 void MC_compare(void){
166 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
170 /* Initialize the data structures that must be persistent across every
171 iteration of the model-checker (in RAW memory) */
175 MC_init_memory_map_info();
177 mc_local_variables = xbt_dict_new_homogeneous(NULL);
179 /* Get local variables in binary for state equality detection */
180 xbt_dict_t binary_location_list = MC_get_location_list(xbt_binary_name);
181 MC_get_local_variables(xbt_binary_name, binary_location_list, &mc_local_variables);
183 /* Get local variables in libsimgrid for state equality detection */
184 xbt_dict_t libsimgrid_location_list = MC_get_location_list(libsimgrid_path);
185 MC_get_local_variables(libsimgrid_path, libsimgrid_location_list, &mc_local_variables);
187 xbt_dict_free(&libsimgrid_location_list);
188 xbt_dict_free(&binary_location_list);
190 /* Get .plt section (start and end addresses) for data libsimgrid and data program comparison */
191 get_libsimgrid_plt_section();
192 get_binary_plt_section();
194 /* Get global variables */
195 MC_get_global_variables(xbt_binary_name);
196 MC_get_global_variables(libsimgrid_path);
200 /* Ignore some variables from xbt/ex.h used by exception e for stacks comparison */
201 MC_ignore_stack("e", "*");
202 MC_ignore_stack("__ex_cleanup", "*");
203 MC_ignore_stack("__ex_mctx_en", "*");
204 MC_ignore_stack("__ex_mctx_me", "*");
205 MC_ignore_stack("__xbt_ex_ctx_ptr", "*");
206 MC_ignore_stack("_log_ev", "*");
207 MC_ignore_stack("_throw_ctx", "*");
208 MC_ignore_stack("ctx", "*");
210 MC_ignore_stack("next_context", "smx_ctx_sysv_suspend_serial");
211 MC_ignore_stack("i", "smx_ctx_sysv_suspend_serial");
213 /* Ignore local variable about time used for tracing */
214 MC_ignore_stack("start_time", "*");
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(){ /* FIXME : more colors */
229 colors[2] = "green3";
230 colors[3] = "goldenrod";
232 colors[5] = "purple";
233 colors[6] = "magenta";
234 colors[7] = "turquoise4";
235 colors[8] = "gray25";
236 colors[9] = "forestgreen";
237 colors[10] = "hotpink";
238 colors[11] = "lightblue";
241 dot_output = fopen(_sg_mc_dot_output_file, "w");
243 if(dot_output == NULL){
244 perror("Error open dot output file");
248 fprintf(dot_output, "digraph graphname{\n fixedsize=true; rankdir=TB; ranksep=.25; edge [fontsize=12]; node [fontsize=10, shape=circle,width=.5 ]; graph [resolution=20, fontsize=10];\n");
252 void MC_modelcheck_safety(void)
254 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
256 /* Check if MC is already initialized */
257 if (initial_state_safety)
260 mc_time = xbt_new0(double, simix_process_maxpid);
262 /* mc_time refers to clock for each process -> ignore it for heap comparison */
263 MC_ignore_heap(mc_time, simix_process_maxpid * sizeof(double));
265 /* Initialize the data structures that must be persistent across every
266 iteration of the model-checker (in RAW memory) */
270 /* Initialize statistics */
271 mc_stats = xbt_new0(s_mc_stats_t, 1);
272 mc_stats->state_size = 1;
274 /* Create exploration stack */
275 mc_stack_safety = xbt_fifo_new();
277 if((_sg_mc_dot_output_file != NULL) && (_sg_mc_dot_output_file[0]!='\0'))
278 MC_init_dot_output();
282 if(_sg_mc_visited > 0){
286 MC_init_memory_map_info();
287 get_libsimgrid_plt_section();
288 get_binary_plt_section();
295 /* Save the initial state */
296 initial_state_safety = xbt_new0(s_mc_global_t, 1);
297 initial_state_safety->snapshot = MC_take_snapshot();
308 void MC_modelcheck_liveness(){
310 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
314 mc_time = xbt_new0(double, simix_process_maxpid);
316 /* mc_time refers to clock for each process -> ignore it for heap comparison */
317 MC_ignore_heap(mc_time, simix_process_maxpid * sizeof(double));
321 /* Initialize statistics */
322 mc_stats = xbt_new0(s_mc_stats_t, 1);
323 mc_stats->state_size = 1;
325 /* Create exploration stack */
326 mc_stack_liveness = xbt_fifo_new();
328 /* Create the initial state */
329 initial_state_liveness = xbt_new0(s_mc_global_t, 1);
331 if((_sg_mc_dot_output_file != NULL) && (_sg_mc_dot_output_file[0]!='\0'))
332 MC_init_dot_output();
339 MC_print_statistics(mc_stats);
355 int SIMIX_pre_mc_random(smx_simcall_t simcall){
357 return simcall->mc_value;
363 /*FIXME: return mc_current_state->executed_transition->random.value;*/
364 return simcall_mc_random();
368 * \brief Schedules all the process that are ready to run
370 void MC_wait_for_requests(void)
372 smx_process_t process;
376 while (!xbt_dynar_is_empty(simix_global->process_to_run)) {
377 SIMIX_process_runall();
378 xbt_dynar_foreach(simix_global->process_that_ran, iter, process) {
379 req = &process->simcall;
380 if (req->call != SIMCALL_NONE && !MC_request_is_visible(req))
381 SIMIX_simcall_pre(req, 0);
386 int MC_deadlock_check()
388 int deadlock = FALSE;
389 smx_process_t process;
390 if(xbt_swag_size(simix_global->process_list)){
392 xbt_swag_foreach(process, simix_global->process_list){
393 if(process->simcall.call != SIMCALL_NONE
394 && MC_request_is_enabled(&process->simcall)){
404 * \brief Re-executes from the state at position start all the transitions indicated by
405 * a given model-checker stack.
406 * \param stack The stack with the transitions to execute.
407 * \param start Start index to begin the re-execution.
409 void MC_replay(xbt_fifo_t stack, int start)
411 int raw_mem = (mmalloc_get_current_heap() == raw_heap);
413 int value, i = 1, count = 1;
415 smx_simcall_t req = NULL, saved_req = NULL;
416 xbt_fifo_item_t item, start_item;
418 smx_process_t process = NULL;
420 XBT_DEBUG("**** Begin Replay ****");
423 /* Restore the initial state */
424 MC_restore_snapshot(initial_state_safety->snapshot);
425 /* At the moment of taking the snapshot the raw heap was set, so restoring
426 * it will set it back again, we have to unset it to continue */
430 start_item = xbt_fifo_get_last_item(stack);
433 start_item = xbt_fifo_get_prev_item(start_item);
439 xbt_dict_reset(first_enabled_state);
440 xbt_swag_foreach(process, simix_global->process_list){
441 if(MC_process_is_enabled(process)){
442 char *key = bprintf("%lu", process->pid);
443 char *data = bprintf("%d", count);
444 xbt_dict_set(first_enabled_state, key, data, NULL);
451 /* Traverse the stack from the state at position start and re-execute the transitions */
452 for (item = start_item;
453 item != xbt_fifo_get_first_item(stack);
454 item = xbt_fifo_get_prev_item(item)) {
456 state = (mc_state_t) xbt_fifo_get_item_content(item);
457 saved_req = MC_state_get_executed_request(state, &value);
460 char *key = bprintf("%lu", saved_req->issuer->pid);
461 xbt_dict_remove(first_enabled_state, key);
466 /* because we got a copy of the executed request, we have to fetch the
467 real one, pointed by the request field of the issuer process */
468 req = &saved_req->issuer->simcall;
470 /* Debug information */
471 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
472 req_str = MC_request_to_string(req, value);
473 XBT_DEBUG("Replay: %s (%p)", req_str, state);
478 SIMIX_simcall_pre(req, value);
479 MC_wait_for_requests();
484 /* Insert in dict all enabled processes */
485 xbt_swag_foreach(process, simix_global->process_list){
486 if(MC_process_is_enabled(process) /*&& !MC_state_process_is_done(state, process)*/){
487 char *key = bprintf("%lu", process->pid);
488 if(xbt_dict_get_or_null(first_enabled_state, key) == NULL){
489 char *data = bprintf("%d", count);
490 xbt_dict_set(first_enabled_state, key, data, NULL);
497 /* Update statistics */
498 mc_stats->visited_states++;
499 mc_stats->executed_transitions++;
503 XBT_DEBUG("**** End Replay ****");
513 void MC_replay_liveness(xbt_fifo_t stack, int all_stack)
516 initial_state_liveness->raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
520 smx_simcall_t req = NULL, saved_req = NULL;
521 xbt_fifo_item_t item;
526 XBT_DEBUG("**** Begin Replay ****");
528 /* Restore the initial state */
529 MC_restore_snapshot(initial_state_liveness->snapshot);
531 /* At the moment of taking the snapshot the raw heap was set, so restoring
532 * it will set it back again, we have to unset it to continue */
533 if(!initial_state_liveness->raw_mem_set)
538 item = xbt_fifo_get_last_item(stack);
540 while(depth <= xbt_fifo_size(stack)){
542 pair = (mc_pair_t) xbt_fifo_get_item_content(item);
543 state = (mc_state_t) pair->graph_state;
545 if(pair->requests > 0){
547 saved_req = MC_state_get_executed_request(state, &value);
548 //XBT_DEBUG("SavedReq->call %u", saved_req->call);
550 if(saved_req != NULL){
551 /* because we got a copy of the executed request, we have to fetch the
552 real one, pointed by the request field of the issuer process */
553 req = &saved_req->issuer->simcall;
554 //XBT_DEBUG("Req->call %u", req->call);
556 /* Debug information */
557 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
558 req_str = MC_request_to_string(req, value);
559 XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
565 SIMIX_simcall_pre(req, value);
566 MC_wait_for_requests();
571 /* Update statistics */
572 mc_stats->visited_pairs++;
573 mc_stats->executed_transitions++;
575 item = xbt_fifo_get_prev_item(item);
580 /* Traverse the stack from the initial state and re-execute the transitions */
581 for (item = xbt_fifo_get_last_item(stack);
582 item != xbt_fifo_get_first_item(stack);
583 item = xbt_fifo_get_prev_item(item)) {
585 pair = (mc_pair_t) xbt_fifo_get_item_content(item);
586 state = (mc_state_t) pair->graph_state;
588 if(pair->requests > 0){
590 saved_req = MC_state_get_executed_request(state, &value);
591 //XBT_DEBUG("SavedReq->call %u", saved_req->call);
593 if(saved_req != NULL){
594 /* because we got a copy of the executed request, we have to fetch the
595 real one, pointed by the request field of the issuer process */
596 req = &saved_req->issuer->simcall;
597 //XBT_DEBUG("Req->call %u", req->call);
599 /* Debug information */
600 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
601 req_str = MC_request_to_string(req, value);
602 XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
608 SIMIX_simcall_pre(req, value);
609 MC_wait_for_requests();
614 /* Update statistics */
615 mc_stats->visited_pairs++;
616 mc_stats->executed_transitions++;
620 XBT_DEBUG("**** End Replay ****");
622 if(initial_state_liveness->raw_mem_set)
630 * \brief Dumps the contents of a model-checker's stack and shows the actual
632 * \param stack The stack to dump
634 void MC_dump_stack_safety(xbt_fifo_t stack)
637 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
639 MC_show_stack_safety(stack);
641 if(!_sg_mc_checkpoint){
646 while ((state = (mc_state_t) xbt_fifo_pop(stack)) != NULL)
647 MC_state_delete(state);
660 void MC_show_stack_safety(xbt_fifo_t stack)
663 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
669 xbt_fifo_item_t item;
671 char *req_str = NULL;
673 for (item = xbt_fifo_get_last_item(stack);
674 (item ? (state = (mc_state_t) (xbt_fifo_get_item_content(item)))
675 : (NULL)); item = xbt_fifo_get_prev_item(item)) {
676 req = MC_state_get_executed_request(state, &value);
678 req_str = MC_request_to_string(req, value);
679 XBT_INFO("%s", req_str);
688 void MC_show_deadlock(smx_simcall_t req)
690 /*char *req_str = NULL;*/
691 XBT_INFO("**************************");
692 XBT_INFO("*** DEAD-LOCK DETECTED ***");
693 XBT_INFO("**************************");
694 XBT_INFO("Locked request:");
695 /*req_str = MC_request_to_string(req);
696 XBT_INFO("%s", req_str);
698 XBT_INFO("Counter-example execution trace:");
699 MC_dump_stack_safety(mc_stack_safety);
700 MC_print_statistics(mc_stats);
704 void MC_show_stack_liveness(xbt_fifo_t stack){
707 xbt_fifo_item_t item;
709 char *req_str = NULL;
711 for (item = xbt_fifo_get_last_item(stack);
712 (item ? (pair = (mc_pair_t) (xbt_fifo_get_item_content(item)))
713 : (NULL)); item = xbt_fifo_get_prev_item(item)) {
714 req = MC_state_get_executed_request(pair->graph_state, &value);
716 if(pair->requests>0){
717 req_str = MC_request_to_string(req, value);
718 XBT_INFO("%s", req_str);
721 XBT_INFO("End of system requests but evolution in Büchi automaton");
727 void MC_dump_stack_liveness(xbt_fifo_t stack){
729 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
734 while ((pair = (mc_pair_t) xbt_fifo_pop(stack)) != NULL)
735 MC_pair_delete(pair);
744 void MC_print_statistics(mc_stats_t stats)
746 if(stats->expanded_pairs == 0){
747 XBT_INFO("Expanded states = %lu", stats->expanded_states);
748 XBT_INFO("Visited states = %lu", stats->visited_states);
750 XBT_INFO("Expanded pairs = %lu", stats->expanded_pairs);
751 XBT_INFO("Visited pairs = %lu", stats->visited_pairs);
753 XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
755 if((_sg_mc_dot_output_file != NULL) && (_sg_mc_dot_output_file[0]!='\0')){
756 fprintf(dot_output, "}\n");
762 void MC_assert(int prop)
764 if (MC_is_active() && !prop){
765 XBT_INFO("**************************");
766 XBT_INFO("*** PROPERTY NOT VALID ***");
767 XBT_INFO("**************************");
768 XBT_INFO("Counter-example execution trace:");
769 MC_dump_stack_safety(mc_stack_safety);
770 MC_print_statistics(mc_stats);
775 static void MC_assert_pair(int prop){
776 if (MC_is_active() && !prop) {
777 XBT_INFO("**************************");
778 XBT_INFO("*** PROPERTY NOT VALID ***");
779 XBT_INFO("**************************");
780 //XBT_INFO("Counter-example execution trace:");
781 MC_show_stack_liveness(mc_stack_liveness);
782 //MC_dump_snapshot_stack(mc_snapshot_stack);
783 MC_print_statistics(mc_stats);
788 void MC_process_clock_add(smx_process_t process, double amount)
790 mc_time[process->pid] += amount;
793 double MC_process_clock_get(smx_process_t process)
797 return mc_time[process->pid];
805 void MC_automaton_load(const char *file){
807 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
811 if (_mc_property_automaton == NULL)
812 _mc_property_automaton = xbt_automaton_new();
814 xbt_automaton_load(_mc_property_automaton,file);
823 void MC_automaton_new_propositional_symbol(const char* id, void* fct) {
825 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
829 if (_mc_property_automaton == NULL)
830 _mc_property_automaton = xbt_automaton_new();
832 xbt_automaton_propositional_symbol_new(_mc_property_automaton,id,fct);
841 /************ MC_ignore ***********/
843 void heap_ignore_region_free(mc_heap_ignore_region_t r){
847 void heap_ignore_region_free_voidp(void *r){
848 heap_ignore_region_free((mc_heap_ignore_region_t) * (void **) r);
851 void MC_ignore_heap(void *address, size_t size){
853 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
857 mc_heap_ignore_region_t region = NULL;
858 region = xbt_new0(s_mc_heap_ignore_region_t, 1);
859 region->address = address;
862 region->block = ((char*)address - (char*)((xbt_mheap_t)std_heap)->heapbase) / BLOCKSIZE + 1;
864 if(((xbt_mheap_t)std_heap)->heapinfo[region->block].type == 0){
865 region->fragment = -1;
866 ((xbt_mheap_t)std_heap)->heapinfo[region->block].busy_block.ignore++;
868 region->fragment = ((uintptr_t) (ADDR2UINT (address) % (BLOCKSIZE))) >> ((xbt_mheap_t)std_heap)->heapinfo[region->block].type;
869 ((xbt_mheap_t)std_heap)->heapinfo[region->block].busy_frag.ignore[region->fragment]++;
872 if(mc_heap_comparison_ignore == NULL){
873 mc_heap_comparison_ignore = xbt_dynar_new(sizeof(mc_heap_ignore_region_t), heap_ignore_region_free_voidp);
874 xbt_dynar_push(mc_heap_comparison_ignore, ®ion);
880 unsigned int cursor = 0;
881 mc_heap_ignore_region_t current_region = NULL;
883 int end = xbt_dynar_length(mc_heap_comparison_ignore) - 1;
886 cursor = (start + end) / 2;
887 current_region = (mc_heap_ignore_region_t)xbt_dynar_get_as(mc_heap_comparison_ignore, cursor, mc_heap_ignore_region_t);
888 if(current_region->address == address){
889 heap_ignore_region_free(region);
894 if(current_region->address < address)
896 if(current_region->address > address)
900 if(current_region->address < address)
901 xbt_dynar_insert_at(mc_heap_comparison_ignore, cursor + 1, ®ion);
903 xbt_dynar_insert_at(mc_heap_comparison_ignore, cursor, ®ion);
911 void MC_remove_ignore_heap(void *address, size_t size){
913 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
917 unsigned int cursor = 0;
919 int end = xbt_dynar_length(mc_heap_comparison_ignore) - 1;
920 mc_heap_ignore_region_t region;
921 int ignore_found = 0;
924 cursor = (start + end) / 2;
925 region = (mc_heap_ignore_region_t)xbt_dynar_get_as(mc_heap_comparison_ignore, cursor, mc_heap_ignore_region_t);
926 if(region->address == address){
930 if(region->address < address)
932 if(region->address > address){
933 if((char * )region->address <= ((char *)address + size)){
941 if(ignore_found == 1){
942 xbt_dynar_remove_at(mc_heap_comparison_ignore, cursor, NULL);
943 MC_remove_ignore_heap(address, size);
953 void data_bss_ignore_variable_free(mc_data_bss_ignore_variable_t v){
957 void data_bss_ignore_variable_free_voidp(void *v){
958 data_bss_ignore_variable_free((mc_data_bss_ignore_variable_t) * (void **) v);
961 void MC_ignore_data_bss(void *address, size_t size){
963 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
967 if(mc_data_bss_comparison_ignore == NULL)
968 mc_data_bss_comparison_ignore = xbt_dynar_new(sizeof(mc_data_bss_ignore_variable_t), data_bss_ignore_variable_free_voidp);
970 mc_data_bss_ignore_variable_t var = NULL;
971 var = xbt_new0(s_mc_data_bss_ignore_variable_t, 1);
972 var->address = address;
975 if(xbt_dynar_is_empty(mc_data_bss_comparison_ignore)){
977 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, 0, &var);
981 unsigned int cursor = 0;
983 int end = xbt_dynar_length(mc_data_bss_comparison_ignore) - 1;
984 mc_data_bss_ignore_variable_t current_var = NULL;
987 cursor = (start + end) / 2;
988 current_var = (mc_data_bss_ignore_variable_t)xbt_dynar_get_as(mc_data_bss_comparison_ignore, cursor, mc_data_bss_ignore_variable_t);
989 if(current_var->address == address){
990 data_bss_ignore_variable_free(var);
996 if(current_var->address < address)
998 if(current_var->address > address)
1002 if(current_var->address < address)
1003 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, cursor + 1, &var);
1005 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, cursor, &var);
1009 /* Remove variable from mc_global_variables */
1011 if(mc_global_variables != NULL){
1013 unsigned int cursor = 0;
1015 int end = xbt_dynar_length(mc_global_variables) - 1;
1016 global_variable_t current_var;
1019 while(start <= end){
1020 cursor = (start + end) / 2;
1021 current_var = (global_variable_t)xbt_dynar_get_as(mc_global_variables, cursor, global_variable_t);
1022 if(current_var->address == var->address){
1026 if(current_var->address < address)
1028 if(current_var->address > address)
1033 xbt_dynar_remove_at(mc_global_variables, cursor, NULL);
1043 static size_t data_bss_ignore_size(void *address){
1044 unsigned int cursor = 0;
1046 int end = xbt_dynar_length(mc_data_bss_comparison_ignore) - 1;
1047 mc_data_bss_ignore_variable_t var;
1049 while(start <= end){
1050 cursor = (start + end) / 2;
1051 var = (mc_data_bss_ignore_variable_t)xbt_dynar_get_as(mc_data_bss_comparison_ignore, cursor, mc_data_bss_ignore_variable_t);
1052 if(var->address == address)
1054 if(var->address < address){
1055 if((void *)((char *)var->address + var->size) > address)
1056 return (char *)var->address + var->size - (char*)address;
1060 if(var->address > address)
1067 void stack_ignore_variable_free(mc_stack_ignore_variable_t v){
1068 xbt_free(v->var_name);
1073 void stack_ignore_variable_free_voidp(void *v){
1074 stack_ignore_variable_free((mc_stack_ignore_variable_t) * (void **) v);
1077 void MC_ignore_stack(const char *var_name, const char *frame_name){
1079 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
1083 if(mc_stack_comparison_ignore == NULL)
1084 mc_stack_comparison_ignore = xbt_dynar_new(sizeof(mc_stack_ignore_variable_t), stack_ignore_variable_free_voidp);
1086 mc_stack_ignore_variable_t var = NULL;
1087 var = xbt_new0(s_mc_stack_ignore_variable_t, 1);
1088 var->var_name = strdup(var_name);
1089 var->frame = strdup(frame_name);
1091 if(xbt_dynar_is_empty(mc_stack_comparison_ignore)){
1093 xbt_dynar_insert_at(mc_stack_comparison_ignore, 0, &var);
1097 unsigned int cursor = 0;
1099 int end = xbt_dynar_length(mc_stack_comparison_ignore) - 1;
1100 mc_stack_ignore_variable_t current_var = NULL;
1102 while(start <= end){
1103 cursor = (start + end) / 2;
1104 current_var = (mc_stack_ignore_variable_t)xbt_dynar_get_as(mc_stack_comparison_ignore, cursor, mc_stack_ignore_variable_t);
1105 if(strcmp(current_var->frame, frame_name) == 0){
1106 if(strcmp(current_var->var_name, var_name) == 0){
1107 stack_ignore_variable_free(var);
1113 if(strcmp(current_var->var_name, var_name) < 0)
1115 if(strcmp(current_var->var_name, var_name) > 0)
1118 if(strcmp(current_var->frame, frame_name) < 0)
1120 if(strcmp(current_var->frame, frame_name) > 0)
1124 if(strcmp(current_var->frame, frame_name) < 0)
1125 xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor + 1, &var);
1127 xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor, &var);
1131 /* Remove variable from mc_local_variables */
1133 if(mc_local_variables != NULL){
1135 if(strcmp(frame_name, "*") != 0){
1136 dw_frame_t frame = xbt_dict_get_or_null(mc_local_variables, frame_name);
1138 xbt_dict_remove(frame->variables, var_name);
1150 void MC_new_stack_area(void *stack, char *name, void* context, size_t size){
1152 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
1155 if(stacks_areas == NULL)
1156 stacks_areas = xbt_dynar_new(sizeof(stack_region_t), NULL);
1158 stack_region_t region = NULL;
1159 region = xbt_new0(s_stack_region_t, 1);
1160 region->address = stack;
1161 region->process_name = strdup(name);
1162 region->context = context;
1163 region->size = size;
1164 region->block = ((char*)stack - (char*)((xbt_mheap_t)std_heap)->heapbase) / BLOCKSIZE + 1;
1165 xbt_dynar_push(stacks_areas, ®ion);
1173 /************ DWARF ***********/
1175 xbt_dict_t MC_get_location_list(const char *elf_file){
1177 char *command = bprintf("objdump -Wo %s", elf_file);
1179 FILE *fp = popen(command, "r");
1182 perror("popen for objdump failed");
1186 int debug = 0; /*Detect if the program has been compiled with -g */
1188 xbt_dict_t location_list = xbt_dict_new_homogeneous(NULL);
1189 char *line = NULL, *loc_expr = NULL;
1193 xbt_dynar_t split = NULL;
1195 while ((read = xbt_getline(&line, &n, fp)) != -1) {
1197 /* Wipeout the new line character */
1198 line[read - 1] = '\0';
1200 xbt_str_trim(line, NULL);
1205 if(strlen(line) == 0)
1210 if(strncmp(line, elf_file, strlen(elf_file)) == 0)
1213 if(strncmp(line, "Contents", 8) == 0)
1216 if(strncmp(line, "Offset", 6) == 0){
1223 XBT_INFO("Your program must be compiled with -g");
1227 xbt_dynar_t loclist = xbt_dynar_new(sizeof(dw_location_entry_t), NULL);
1229 xbt_str_strip_spaces(line);
1230 split = xbt_str_split(line, " ");
1232 while(read != -1 && strcmp("<End", (char *)xbt_dynar_get_as(split, 1, char *)) != 0){
1234 dw_location_entry_t new_entry = xbt_new0(s_dw_location_entry_t, 1);
1235 new_entry->lowpc = strtoul((char *)xbt_dynar_get_as(split, 1, char *), NULL, 16);
1236 new_entry->highpc = strtoul((char *)xbt_dynar_get_as(split, 2, char *), NULL, 16);
1239 while(cursor_remove < 3){
1240 xbt_dynar_remove_at(split, 0, NULL);
1244 loc_expr = xbt_str_join(split, " ");
1245 xbt_str_ltrim(loc_expr, "(");
1246 xbt_str_rtrim(loc_expr, ")");
1247 new_entry->location = get_location(NULL, loc_expr);
1249 xbt_dynar_push(loclist, &new_entry);
1251 xbt_dynar_free(&split);
1254 read = xbt_getline(&line, &n, fp);
1256 line[read - 1] = '\0';
1257 xbt_str_strip_spaces(line);
1258 split = xbt_str_split(line, " ");
1264 char *key = bprintf("%d", (int)strtoul((char *)xbt_dynar_get_as(split, 0, char *), NULL, 16));
1265 xbt_dict_set(location_list, key, loclist, NULL);
1268 xbt_dynar_free(&split);
1276 return location_list;
1279 static dw_frame_t get_frame_by_offset(xbt_dict_t all_variables, unsigned long int offset){
1281 xbt_dict_cursor_t cursor = NULL;
1285 xbt_dict_foreach(all_variables, cursor, name, res) {
1286 if(offset >= res->start && offset < res->end){
1287 xbt_dict_cursor_free(&cursor);
1292 xbt_dict_cursor_free(&cursor);
1297 void MC_get_local_variables(const char *elf_file, xbt_dict_t location_list, xbt_dict_t *all_variables){
1299 char *command = bprintf("objdump -Wi %s", elf_file);
1301 FILE *fp = popen(command, "r");
1304 perror("popen for objdump failed");
1306 char *line = NULL, *origin, *abstract_origin, *current_frame = NULL;
1309 int valid_variable = 1;
1310 char *node_type = NULL, *location_type = NULL, *variable_name = NULL, *loc_expr = NULL;
1311 xbt_dynar_t split = NULL, split2 = NULL;
1313 xbt_dict_t variables_origin = xbt_dict_new_homogeneous(NULL);
1314 xbt_dict_t subprograms_origin = xbt_dict_new_homogeneous(NULL);
1315 char *subprogram_name = NULL, *subprogram_start = NULL, *subprogram_end = NULL;
1316 int new_frame = 0, new_variable = 0;
1317 dw_frame_t variable_frame, subroutine_frame = NULL;
1319 read = xbt_getline(&line, &n, fp);
1321 while (read != -1) {
1324 read = xbt_getline(&line, &n, fp);
1328 /* Wipeout the new line character */
1329 line[read - 1] = '\0';
1331 if(strlen(line) == 0){
1332 read = xbt_getline(&line, &n, fp);
1336 xbt_str_ltrim(line, NULL);
1337 xbt_str_strip_spaces(line);
1340 read = xbt_getline(&line, &n, fp);
1344 xbt_dynar_free(&split);
1345 split = xbt_str_split(line, " ");
1348 node_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1350 if(strcmp(node_type, "(DW_TAG_subprogram)") == 0){ /* New frame */
1352 dw_frame_t frame = NULL;
1354 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1355 subprogram_start = strdup(strtok(NULL, "<"));
1356 xbt_str_rtrim(subprogram_start, ">:");
1358 read = xbt_getline(&line, &n, fp);
1363 read = xbt_getline(&line, &n, fp);
1367 /* Wipeout the new line character */
1368 line[read - 1] = '\0';
1370 if(strlen(line) == 0){
1371 read = xbt_getline(&line, &n, fp);
1375 xbt_dynar_free(&split);
1376 xbt_str_rtrim(line, NULL);
1377 xbt_str_strip_spaces(line);
1378 split = xbt_str_split(line, " ");
1380 node_type = xbt_dynar_get_as(split, 1, char *);
1382 if(strncmp(node_type, "DW_AT_", 6) != 0)
1385 if(strcmp(node_type, "DW_AT_sibling") == 0){
1387 subprogram_end = strdup(xbt_dynar_get_as(split, 3, char*));
1388 xbt_str_ltrim(subprogram_end, "<0x");
1389 xbt_str_rtrim(subprogram_end, ">");
1391 }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){ /* Frame already in dict */
1394 abstract_origin = strdup(xbt_dynar_get_as(split, 2, char*));
1395 xbt_str_ltrim(abstract_origin, "<0x");
1396 xbt_str_rtrim(abstract_origin, ">");
1397 subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, abstract_origin);
1398 frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
1399 xbt_free(abstract_origin);
1401 }else if(strcmp(node_type, "DW_AT_name") == 0){
1404 xbt_free(current_frame);
1405 frame = xbt_new0(s_dw_frame_t, 1);
1406 frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1407 frame->variables = xbt_dict_new_homogeneous(NULL);
1408 frame->frame_base = xbt_new0(s_dw_location_t, 1);
1409 current_frame = strdup(frame->name);
1411 xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
1413 }else if(strcmp(node_type, "DW_AT_frame_base") == 0){
1415 location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1417 if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
1419 frame->frame_base = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
1423 xbt_str_strip_spaces(line);
1424 split2 = xbt_str_split(line, "(");
1425 xbt_dynar_remove_at(split2, 0, NULL);
1426 loc_expr = xbt_str_join(split2, " ");
1427 xbt_str_rtrim(loc_expr, ")");
1428 frame->frame_base = get_location(NULL, loc_expr);
1429 xbt_dynar_free(&split2);
1434 }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
1437 frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1439 }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
1442 frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1444 }else if(strcmp(node_type, "DW_AT_MIPS_linkage_name:") == 0){
1446 xbt_free(frame->name);
1447 xbt_free(current_frame);
1448 frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1449 current_frame = strdup(frame->name);
1450 xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
1454 read = xbt_getline(&line, &n, fp);
1459 frame->start = strtoul(subprogram_start, NULL, 16);
1460 if(subprogram_end != NULL)
1461 frame->end = strtoul(subprogram_end, NULL, 16);
1462 xbt_dict_set(*all_variables, frame->name, frame, NULL);
1465 xbt_free(subprogram_start);
1466 xbt_free(subprogram_end);
1467 subprogram_end = NULL;
1470 }else if(strcmp(node_type, "(DW_TAG_variable)") == 0){ /* New variable */
1472 dw_local_variable_t var = NULL;
1474 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1475 origin = strdup(strtok(NULL, "<"));
1476 xbt_str_rtrim(origin, ">:");
1478 read = xbt_getline(&line, &n, fp);
1483 read = xbt_getline(&line, &n, fp);
1487 /* Wipeout the new line character */
1488 line[read - 1] = '\0';
1490 if(strlen(line) == 0){
1491 read = xbt_getline(&line, &n, fp);
1495 xbt_dynar_free(&split);
1496 xbt_str_rtrim(line, NULL);
1497 xbt_str_strip_spaces(line);
1498 split = xbt_str_split(line, " ");
1500 node_type = xbt_dynar_get_as(split, 1, char *);
1502 if(strncmp(node_type, "DW_AT_", 6) != 0)
1505 if(strcmp(node_type, "DW_AT_name") == 0){
1508 var = xbt_new0(s_dw_local_variable_t, 1);
1509 var->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1511 xbt_dict_set(variables_origin, origin, var->name, NULL);
1513 }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
1516 abstract_origin = xbt_dynar_get_as(split, 2, char *);
1517 xbt_str_ltrim(abstract_origin, "<0x");
1518 xbt_str_rtrim(abstract_origin, ">");
1520 variable_name = (char *)xbt_dict_get_or_null(variables_origin, abstract_origin);
1521 variable_frame = get_frame_by_offset(*all_variables, strtoul(abstract_origin, NULL, 16));
1522 var = xbt_dict_get_or_null(variable_frame->variables, variable_name);
1524 }else if(strcmp(node_type, "DW_AT_location") == 0){
1526 if(valid_variable == 1 && var != NULL){
1528 var->location = xbt_new0(s_dw_location_t, 1);
1530 location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1532 if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
1534 var->location = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
1538 xbt_str_strip_spaces(line);
1539 split2 = xbt_str_split(line, "(");
1540 xbt_dynar_remove_at(split2, 0, NULL);
1541 loc_expr = xbt_str_join(split2, " ");
1542 xbt_str_rtrim(loc_expr, ")");
1543 var->location = get_location(NULL, loc_expr);
1544 xbt_dynar_free(&split2);
1551 }else if(strcmp(node_type, "DW_AT_external") == 0){
1557 read = xbt_getline(&line, &n, fp);
1561 if(new_variable == 1 && valid_variable == 1){
1563 variable_frame = xbt_dict_get_or_null(*all_variables, current_frame);
1564 xbt_dict_set(variable_frame->variables, var->name, var, NULL);
1570 }else if(strcmp(node_type, "(DW_TAG_inlined_subroutine)") == 0){
1572 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1573 origin = strdup(strtok(NULL, "<"));
1574 xbt_str_rtrim(origin, ">:");
1576 read = xbt_getline(&line, &n, fp);
1580 /* Wipeout the new line character */
1581 line[read - 1] = '\0';
1584 read = xbt_getline(&line, &n, fp);
1588 if(strlen(line) == 0){
1589 read = xbt_getline(&line, &n, fp);
1593 xbt_dynar_free(&split);
1594 xbt_str_rtrim(line, NULL);
1595 xbt_str_strip_spaces(line);
1596 split = xbt_str_split(line, " ");
1598 if(strncmp(xbt_dynar_get_as(split, 1, char *), "DW_AT_", 6) != 0)
1601 node_type = xbt_dynar_get_as(split, 1, char *);
1603 if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
1605 origin = xbt_dynar_get_as(split, 2, char *);
1606 xbt_str_ltrim(origin, "<0x");
1607 xbt_str_rtrim(origin, ">");
1609 subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, origin);
1610 subroutine_frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
1612 }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
1614 subroutine_frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1616 }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
1618 subroutine_frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1621 read = xbt_getline(&line, &n, fp);
1627 read = xbt_getline(&line, &n, fp);
1633 xbt_dynar_free(&split);
1640 static dw_location_t get_location(xbt_dict_t location_list, char *expr){
1642 dw_location_t loc = xbt_new0(s_dw_location_t, 1);
1644 if(location_list != NULL){
1646 char *key = bprintf("%d", (int)strtoul(expr, NULL, 16));
1647 loc->type = e_dw_loclist;
1648 loc->location.loclist = (xbt_dynar_t)xbt_dict_get_or_null(location_list, key);
1649 if(loc->location.loclist == NULL)
1650 XBT_INFO("Key not found in loclist");
1657 char *tok = NULL, *tok2 = NULL;
1659 xbt_dynar_t tokens1 = xbt_str_split(expr, ";");
1660 xbt_dynar_t tokens2;
1662 loc->type = e_dw_compose;
1663 loc->location.compose = xbt_dynar_new(sizeof(dw_location_t), NULL);
1665 while(cursor < xbt_dynar_length(tokens1)){
1667 tok = xbt_dynar_get_as(tokens1, cursor, char*);
1668 tokens2 = xbt_str_split(tok, " ");
1669 tok2 = xbt_dynar_get_as(tokens2, 0, char*);
1671 if(strncmp(tok2, "DW_OP_reg", 9) == 0){
1672 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1673 new_element->type = e_dw_register;
1674 new_element->location.reg = atoi(strtok(tok2, "DW_OP_reg"));
1675 xbt_dynar_push(loc->location.compose, &new_element);
1676 }else if(strcmp(tok2, "DW_OP_fbreg:") == 0){
1677 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1678 new_element->type = e_dw_fbregister_op;
1679 new_element->location.fbreg_op = atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*));
1680 xbt_dynar_push(loc->location.compose, &new_element);
1681 }else if(strncmp(tok2, "DW_OP_breg", 10) == 0){
1682 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1683 new_element->type = e_dw_bregister_op;
1684 new_element->location.breg_op.reg = atoi(strtok(tok2, "DW_OP_breg"));
1685 new_element->location.breg_op.offset = atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*));
1686 xbt_dynar_push(loc->location.compose, &new_element);
1687 }else if(strncmp(tok2, "DW_OP_lit", 9) == 0){
1688 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1689 new_element->type = e_dw_lit;
1690 new_element->location.lit = atoi(strtok(tok2, "DW_OP_lit"));
1691 xbt_dynar_push(loc->location.compose, &new_element);
1692 }else if(strcmp(tok2, "DW_OP_piece:") == 0){
1693 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1694 new_element->type = e_dw_piece;
1695 new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*));
1696 /*if(strlen(xbt_dynar_get_as(tokens2, 1, char*)) > 1)
1697 new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1699 new_element->location.piece = xbt_dynar_get_as(tokens2, 1, char*)[0] - '0';*/
1700 xbt_dynar_push(loc->location.compose, &new_element);
1701 }else if(strcmp(tok2, "DW_OP_plus_uconst:") == 0){
1702 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1703 new_element->type = e_dw_plus_uconst;
1704 new_element->location.plus_uconst = atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char *));
1705 xbt_dynar_push(loc->location.compose, &new_element);
1706 }else if(strcmp(tok, "DW_OP_abs") == 0 ||
1707 strcmp(tok, "DW_OP_and") == 0 ||
1708 strcmp(tok, "DW_OP_div") == 0 ||
1709 strcmp(tok, "DW_OP_minus") == 0 ||
1710 strcmp(tok, "DW_OP_mod") == 0 ||
1711 strcmp(tok, "DW_OP_mul") == 0 ||
1712 strcmp(tok, "DW_OP_neg") == 0 ||
1713 strcmp(tok, "DW_OP_not") == 0 ||
1714 strcmp(tok, "DW_OP_or") == 0 ||
1715 strcmp(tok, "DW_OP_plus") == 0){
1716 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1717 new_element->type = e_dw_arithmetic;
1718 new_element->location.arithmetic = strdup(strtok(tok2, "DW_OP_"));
1719 xbt_dynar_push(loc->location.compose, &new_element);
1720 }else if(strcmp(tok, "DW_OP_stack_value") == 0){
1721 }else if(strcmp(tok2, "DW_OP_deref_size:") == 0){
1722 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1723 new_element->type = e_dw_deref;
1724 new_element->location.deref_size = (unsigned int short) atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*));
1725 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1726 new_element->location.deref_size = atoi(xbt_dynar_get_as(tokens, cursor, char*));
1728 new_element->location.deref_size = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
1729 xbt_dynar_push(loc->location.compose, &new_element);
1730 }else if(strcmp(tok, "DW_OP_deref") == 0){
1731 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1732 new_element->type = e_dw_deref;
1733 new_element->location.deref_size = sizeof(void *);
1734 xbt_dynar_push(loc->location.compose, &new_element);
1735 }else if(strcmp(tok2, "DW_OP_constu:") == 0){
1736 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1737 new_element->type = e_dw_uconstant;
1738 new_element->location.uconstant.bytes = 1;
1739 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*)));
1740 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1741 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens, cursor, char*)));
1743 new_element->location.uconstant.value = (unsigned long int)(xbt_dynar_get_as(tokens, cursor, char*)[0] - '0');*/
1744 xbt_dynar_push(loc->location.compose, &new_element);
1745 }else if(strcmp(tok2, "DW_OP_consts:") == 0){
1746 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1747 new_element->type = e_dw_sconstant;
1748 new_element->location.sconstant.bytes = 1;
1749 new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*)));
1750 xbt_dynar_push(loc->location.compose, &new_element);
1751 }else if(strcmp(tok2, "DW_OP_const1u:") == 0 ||
1752 strcmp(tok2, "DW_OP_const2u:") == 0 ||
1753 strcmp(tok2, "DW_OP_const4u:") == 0 ||
1754 strcmp(tok2, "DW_OP_const8u:") == 0){
1755 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1756 new_element->type = e_dw_uconstant;
1757 new_element->location.uconstant.bytes = tok2[11] - '0';
1758 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*)));
1759 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1760 new_element->location.constant.value = atoi(xbt_dynar_get_as(tokens, cursor, char*));
1762 new_element->location.constant.value = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
1763 xbt_dynar_push(loc->location.compose, &new_element);
1764 }else if(strcmp(tok, "DW_OP_const1s") == 0 ||
1765 strcmp(tok, "DW_OP_const2s") == 0 ||
1766 strcmp(tok, "DW_OP_const4s") == 0 ||
1767 strcmp(tok, "DW_OP_const8s") == 0){
1768 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1769 new_element->type = e_dw_sconstant;
1770 new_element->location.sconstant.bytes = tok2[11] - '0';
1771 new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*)));
1772 xbt_dynar_push(loc->location.compose, &new_element);
1774 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1775 new_element->type = e_dw_unsupported;
1776 xbt_dynar_push(loc->location.compose, &new_element);
1780 xbt_dynar_free(&tokens2);
1784 xbt_dynar_free(&tokens1);
1793 void print_local_variables(xbt_dict_t list){
1795 dw_location_entry_t entry;
1796 dw_location_t location_entry;
1797 unsigned int cursor3 = 0, cursor4 = 0;
1798 xbt_dict_cursor_t cursor = 0, cursor2 = 0;
1800 char *frame_name, *variable_name;
1801 dw_frame_t current_frame;
1802 dw_local_variable_t current_variable;
1804 xbt_dict_foreach(list, cursor, frame_name, current_frame){
1805 fprintf(stderr, "Frame name : %s\n", current_frame->name);
1806 fprintf(stderr, "Location type : %d\n", current_frame->frame_base->type);
1807 xbt_dict_foreach((xbt_dict_t)current_frame->variables, cursor2, variable_name, current_variable){
1808 fprintf(stderr, "Name : %s\n", current_variable->name);
1809 if(current_variable->location == NULL)
1811 fprintf(stderr, "Location type : %d\n", current_variable->location->type);
1812 switch(current_variable->location->type){
1814 xbt_dynar_foreach(current_variable->location->location.loclist, cursor3, entry){
1815 fprintf(stderr, "Lowpc : %lx, Highpc : %lx,", entry->lowpc, entry->highpc);
1816 switch(entry->location->type){
1817 case e_dw_register :
1818 fprintf(stderr, " Location : in register %d\n", entry->location->location.reg);
1820 case e_dw_bregister_op:
1821 fprintf(stderr, " Location : Add %d to the value in register %d\n", entry->location->location.breg_op.offset, entry->location->location.breg_op.reg);
1824 fprintf(stderr, "Value already kwnown : %d\n", entry->location->location.lit);
1826 case e_dw_fbregister_op:
1827 fprintf(stderr, " Location : %d bytes from logical frame pointer\n", entry->location->location.fbreg_op);
1830 fprintf(stderr, " Location :\n");
1831 xbt_dynar_foreach(entry->location->location.compose, cursor4, location_entry){
1832 switch(location_entry->type){
1833 case e_dw_register :
1834 fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
1836 case e_dw_bregister_op:
1837 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);
1840 fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
1842 case e_dw_fbregister_op:
1843 fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
1846 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);
1848 case e_dw_arithmetic :
1849 fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
1852 fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
1854 case e_dw_uconstant :
1855 fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
1857 case e_dw_sconstant :
1858 fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
1861 fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
1867 fprintf(stderr, "Location type not supported\n");
1874 fprintf(stderr, "Location :\n");
1875 xbt_dynar_foreach(current_variable->location->location.compose, cursor4, location_entry){
1876 switch(location_entry->type){
1877 case e_dw_register :
1878 fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
1880 case e_dw_bregister_op:
1881 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);
1884 fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
1886 case e_dw_fbregister_op:
1887 fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
1890 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);
1892 case e_dw_arithmetic :
1893 fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
1896 fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
1898 case e_dw_uconstant :
1899 fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
1901 case e_dw_sconstant :
1902 fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
1905 fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
1911 fprintf(stderr, "Location type not supported\n");
1919 static void MC_get_global_variables(char *elf_file){
1923 char *command = bprintf("objdump -t -j .data -j .bss %s", elf_file);
1925 fp = popen(command, "r");
1928 perror("popen failed");
1932 if(mc_global_variables == NULL)
1933 mc_global_variables = xbt_dynar_new(sizeof(global_variable_t), global_variable_free_voidp);
1939 xbt_dynar_t line_tokens = NULL;
1940 unsigned long offset;
1942 int type = strcmp(elf_file, xbt_binary_name); /* 0 = binary, other = libsimgrid */
1944 while ((read = xbt_getline(&line, &n, fp)) != -1){
1949 /* Wipeout the new line character */
1950 line[read - 1] = '\0';
1952 xbt_str_strip_spaces(line);
1953 xbt_str_ltrim(line, NULL);
1955 line_tokens = xbt_str_split(line, NULL);
1957 if(xbt_dynar_length(line_tokens) <= 4 || strcmp(xbt_dynar_get_as(line_tokens, 0, char *), "SYMBOL") == 0)
1960 if((strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "__gcov", 6) == 0)
1961 || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "gcov", 4) == 0)
1962 || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), ".data") == 0)
1963 || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), ".bss") == 0)
1964 || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "stderr", 6) == 0)
1965 || ((size_t)strtoul(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 2, char*), NULL, 16) == 0))
1968 global_variable_t var = xbt_new0(s_global_variable_t, 1);
1971 var->address = (void *)strtoul(xbt_dynar_get_as(line_tokens, 0, char*), NULL, 16);
1973 offset = strtoul(xbt_dynar_get_as(line_tokens, 0, char*), NULL, 16);
1974 var->address = (char *)start_text_libsimgrid+offset;
1977 var->size = (size_t)strtoul(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 2, char*), NULL, 16);
1978 var->name = strdup(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*));
1980 if(data_bss_ignore_size(var->address) > 0){
1981 global_variable_free(var);
1983 if(xbt_dynar_is_empty(mc_global_variables)){
1984 xbt_dynar_push(mc_global_variables, &var);
1986 unsigned int cursor = 0;
1988 int end = xbt_dynar_length(mc_global_variables) - 1;
1989 global_variable_t current_var = NULL;
1991 while(start <= end){
1992 cursor = (start + end) / 2;
1993 current_var = (global_variable_t)xbt_dynar_get_as(mc_global_variables, cursor, global_variable_t);
1994 if(current_var->address == var->address)
1996 if(current_var->address < var->address)
1998 if(current_var->address > var->address)
2002 if(current_var->address < var->address)
2003 xbt_dynar_insert_at(mc_global_variables, cursor + 1, &var);
2005 xbt_dynar_insert_at(mc_global_variables, cursor, &var);
2009 xbt_dynar_free(&line_tokens);
2019 void global_variable_free(global_variable_t v){
2024 void global_variable_free_voidp(void *v){
2025 global_variable_free((global_variable_t) * (void **) v);