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[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_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)
664 xbt_fifo_item_t item;
666 char *req_str = NULL;
668 for (item = xbt_fifo_get_last_item(stack);
669 (item ? (state = (mc_state_t) (xbt_fifo_get_item_content(item)))
670 : (NULL)); item = xbt_fifo_get_prev_item(item)) {
671 req = MC_state_get_executed_request(state, &value);
673 req_str = MC_request_to_string(req, value);
674 XBT_INFO("%s", req_str);
680 void MC_show_deadlock(smx_simcall_t req)
682 /*char *req_str = NULL;*/
683 XBT_INFO("**************************");
684 XBT_INFO("*** DEAD-LOCK DETECTED ***");
685 XBT_INFO("**************************");
686 XBT_INFO("Locked request:");
687 /*req_str = MC_request_to_string(req);
688 XBT_INFO("%s", req_str);
690 XBT_INFO("Counter-example execution trace:");
691 MC_dump_stack_safety(mc_stack_safety);
692 MC_print_statistics(mc_stats);
696 void MC_show_stack_liveness(xbt_fifo_t stack){
699 xbt_fifo_item_t item;
701 char *req_str = NULL;
703 for (item = xbt_fifo_get_last_item(stack);
704 (item ? (pair = (mc_pair_t) (xbt_fifo_get_item_content(item)))
705 : (NULL)); item = xbt_fifo_get_prev_item(item)) {
706 req = MC_state_get_executed_request(pair->graph_state, &value);
708 if(pair->requests>0){
709 req_str = MC_request_to_string(req, value);
710 XBT_INFO("%s", req_str);
713 XBT_INFO("End of system requests but evolution in Büchi automaton");
719 void MC_dump_stack_liveness(xbt_fifo_t stack){
721 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
726 while ((pair = (mc_pair_t) xbt_fifo_pop(stack)) != NULL)
727 MC_pair_delete(pair);
736 void MC_print_statistics(mc_stats_t stats)
738 if(stats->expanded_pairs == 0){
739 XBT_INFO("Expanded states = %lu", stats->expanded_states);
740 XBT_INFO("Visited states = %lu", stats->visited_states);
742 XBT_INFO("Expanded pairs = %lu", stats->expanded_pairs);
743 XBT_INFO("Visited pairs = %lu", stats->visited_pairs);
745 XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
747 if((_sg_mc_dot_output_file != NULL) && (_sg_mc_dot_output_file[0]!='\0')){
748 fprintf(dot_output, "}\n");
754 void MC_assert(int prop)
756 if (MC_is_active() && !prop){
757 XBT_INFO("**************************");
758 XBT_INFO("*** PROPERTY NOT VALID ***");
759 XBT_INFO("**************************");
760 XBT_INFO("Counter-example execution trace:");
761 MC_dump_stack_safety(mc_stack_safety);
762 MC_print_statistics(mc_stats);
767 static void MC_assert_pair(int prop){
768 if (MC_is_active() && !prop) {
769 XBT_INFO("**************************");
770 XBT_INFO("*** PROPERTY NOT VALID ***");
771 XBT_INFO("**************************");
772 //XBT_INFO("Counter-example execution trace:");
773 MC_show_stack_liveness(mc_stack_liveness);
774 //MC_dump_snapshot_stack(mc_snapshot_stack);
775 MC_print_statistics(mc_stats);
780 void MC_process_clock_add(smx_process_t process, double amount)
782 mc_time[process->pid] += amount;
785 double MC_process_clock_get(smx_process_t process)
789 return mc_time[process->pid];
797 void MC_automaton_load(const char *file){
799 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
803 if (_mc_property_automaton == NULL)
804 _mc_property_automaton = xbt_automaton_new();
806 xbt_automaton_load(_mc_property_automaton,file);
815 void MC_automaton_new_propositional_symbol(const char* id, void* fct) {
817 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
821 if (_mc_property_automaton == NULL)
822 _mc_property_automaton = xbt_automaton_new();
824 xbt_automaton_propositional_symbol_new(_mc_property_automaton,id,fct);
833 /************ MC_ignore ***********/
835 void heap_ignore_region_free(mc_heap_ignore_region_t r){
839 void heap_ignore_region_free_voidp(void *r){
840 heap_ignore_region_free((mc_heap_ignore_region_t) * (void **) r);
843 void MC_ignore_heap(void *address, size_t size){
845 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
849 mc_heap_ignore_region_t region = NULL;
850 region = xbt_new0(s_mc_heap_ignore_region_t, 1);
851 region->address = address;
854 region->block = ((char*)address - (char*)((xbt_mheap_t)std_heap)->heapbase) / BLOCKSIZE + 1;
856 if(((xbt_mheap_t)std_heap)->heapinfo[region->block].type == 0){
857 region->fragment = -1;
858 ((xbt_mheap_t)std_heap)->heapinfo[region->block].busy_block.ignore++;
860 region->fragment = ((uintptr_t) (ADDR2UINT (address) % (BLOCKSIZE))) >> ((xbt_mheap_t)std_heap)->heapinfo[region->block].type;
861 ((xbt_mheap_t)std_heap)->heapinfo[region->block].busy_frag.ignore[region->fragment]++;
864 if(mc_heap_comparison_ignore == NULL){
865 mc_heap_comparison_ignore = xbt_dynar_new(sizeof(mc_heap_ignore_region_t), heap_ignore_region_free_voidp);
866 xbt_dynar_push(mc_heap_comparison_ignore, ®ion);
872 unsigned int cursor = 0;
873 mc_heap_ignore_region_t current_region = NULL;
875 int end = xbt_dynar_length(mc_heap_comparison_ignore) - 1;
878 cursor = (start + end) / 2;
879 current_region = (mc_heap_ignore_region_t)xbt_dynar_get_as(mc_heap_comparison_ignore, cursor, mc_heap_ignore_region_t);
880 if(current_region->address == address){
881 heap_ignore_region_free(region);
886 if(current_region->address < address)
888 if(current_region->address > address)
892 if(current_region->address < address)
893 xbt_dynar_insert_at(mc_heap_comparison_ignore, cursor + 1, ®ion);
895 xbt_dynar_insert_at(mc_heap_comparison_ignore, cursor, ®ion);
903 void MC_remove_ignore_heap(void *address, size_t size){
905 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
909 unsigned int cursor = 0;
911 int end = xbt_dynar_length(mc_heap_comparison_ignore) - 1;
912 mc_heap_ignore_region_t region;
913 int ignore_found = 0;
916 cursor = (start + end) / 2;
917 region = (mc_heap_ignore_region_t)xbt_dynar_get_as(mc_heap_comparison_ignore, cursor, mc_heap_ignore_region_t);
918 if(region->address == address){
922 if(region->address < address)
924 if(region->address > address){
925 if((char * )region->address <= ((char *)address + size)){
933 if(ignore_found == 1){
934 xbt_dynar_remove_at(mc_heap_comparison_ignore, cursor, NULL);
935 MC_remove_ignore_heap(address, size);
945 void data_bss_ignore_variable_free(mc_data_bss_ignore_variable_t v){
949 void data_bss_ignore_variable_free_voidp(void *v){
950 data_bss_ignore_variable_free((mc_data_bss_ignore_variable_t) * (void **) v);
953 void MC_ignore_data_bss(void *address, size_t size){
955 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
959 if(mc_data_bss_comparison_ignore == NULL)
960 mc_data_bss_comparison_ignore = xbt_dynar_new(sizeof(mc_data_bss_ignore_variable_t), data_bss_ignore_variable_free_voidp);
962 mc_data_bss_ignore_variable_t var = NULL;
963 var = xbt_new0(s_mc_data_bss_ignore_variable_t, 1);
964 var->address = address;
967 if(xbt_dynar_is_empty(mc_data_bss_comparison_ignore)){
969 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, 0, &var);
973 unsigned int cursor = 0;
975 int end = xbt_dynar_length(mc_data_bss_comparison_ignore) - 1;
976 mc_data_bss_ignore_variable_t current_var = NULL;
979 cursor = (start + end) / 2;
980 current_var = (mc_data_bss_ignore_variable_t)xbt_dynar_get_as(mc_data_bss_comparison_ignore, cursor, mc_data_bss_ignore_variable_t);
981 if(current_var->address == address){
982 data_bss_ignore_variable_free(var);
988 if(current_var->address < address)
990 if(current_var->address > address)
994 if(current_var->address < address)
995 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, cursor + 1, &var);
997 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, cursor, &var);
1001 /* Remove variable from mc_global_variables */
1003 if(mc_global_variables != NULL){
1005 unsigned int cursor = 0;
1007 int end = xbt_dynar_length(mc_global_variables) - 1;
1008 global_variable_t current_var;
1011 while(start <= end){
1012 cursor = (start + end) / 2;
1013 current_var = (global_variable_t)xbt_dynar_get_as(mc_global_variables, cursor, global_variable_t);
1014 if(current_var->address == var->address){
1018 if(current_var->address < address)
1020 if(current_var->address > address)
1025 xbt_dynar_remove_at(mc_global_variables, cursor, NULL);
1035 static size_t data_bss_ignore_size(void *address){
1036 unsigned int cursor = 0;
1038 int end = xbt_dynar_length(mc_data_bss_comparison_ignore) - 1;
1039 mc_data_bss_ignore_variable_t var;
1041 while(start <= end){
1042 cursor = (start + end) / 2;
1043 var = (mc_data_bss_ignore_variable_t)xbt_dynar_get_as(mc_data_bss_comparison_ignore, cursor, mc_data_bss_ignore_variable_t);
1044 if(var->address == address)
1046 if(var->address < address){
1047 if((void *)((char *)var->address + var->size) > address)
1048 return (char *)var->address + var->size - (char*)address;
1052 if(var->address > address)
1059 void stack_ignore_variable_free(mc_stack_ignore_variable_t v){
1060 xbt_free(v->var_name);
1065 void stack_ignore_variable_free_voidp(void *v){
1066 stack_ignore_variable_free((mc_stack_ignore_variable_t) * (void **) v);
1069 void MC_ignore_stack(const char *var_name, const char *frame_name){
1071 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
1075 if(mc_stack_comparison_ignore == NULL)
1076 mc_stack_comparison_ignore = xbt_dynar_new(sizeof(mc_stack_ignore_variable_t), stack_ignore_variable_free_voidp);
1078 mc_stack_ignore_variable_t var = NULL;
1079 var = xbt_new0(s_mc_stack_ignore_variable_t, 1);
1080 var->var_name = strdup(var_name);
1081 var->frame = strdup(frame_name);
1083 if(xbt_dynar_is_empty(mc_stack_comparison_ignore)){
1085 xbt_dynar_insert_at(mc_stack_comparison_ignore, 0, &var);
1089 unsigned int cursor = 0;
1091 int end = xbt_dynar_length(mc_stack_comparison_ignore) - 1;
1092 mc_stack_ignore_variable_t current_var = NULL;
1094 while(start <= end){
1095 cursor = (start + end) / 2;
1096 current_var = (mc_stack_ignore_variable_t)xbt_dynar_get_as(mc_stack_comparison_ignore, cursor, mc_stack_ignore_variable_t);
1097 if(strcmp(current_var->frame, frame_name) == 0){
1098 if(strcmp(current_var->var_name, var_name) == 0){
1099 stack_ignore_variable_free(var);
1105 if(strcmp(current_var->var_name, var_name) < 0)
1107 if(strcmp(current_var->var_name, var_name) > 0)
1110 if(strcmp(current_var->frame, frame_name) < 0)
1112 if(strcmp(current_var->frame, frame_name) > 0)
1116 if(strcmp(current_var->frame, frame_name) < 0)
1117 xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor + 1, &var);
1119 xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor, &var);
1123 /* Remove variable from mc_local_variables */
1125 if(mc_local_variables != NULL){
1127 if(strcmp(frame_name, "*") != 0){
1128 dw_frame_t frame = xbt_dict_get_or_null(mc_local_variables, frame_name);
1130 xbt_dict_remove(frame->variables, var_name);
1142 void MC_new_stack_area(void *stack, char *name, void* context, size_t size){
1144 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
1147 if(stacks_areas == NULL)
1148 stacks_areas = xbt_dynar_new(sizeof(stack_region_t), NULL);
1150 stack_region_t region = NULL;
1151 region = xbt_new0(s_stack_region_t, 1);
1152 region->address = stack;
1153 region->process_name = strdup(name);
1154 region->context = context;
1155 region->size = size;
1156 region->block = ((char*)stack - (char*)((xbt_mheap_t)std_heap)->heapbase) / BLOCKSIZE + 1;
1157 xbt_dynar_push(stacks_areas, ®ion);
1165 /************ DWARF ***********/
1167 xbt_dict_t MC_get_location_list(const char *elf_file){
1169 char *command = bprintf("objdump -Wo %s", elf_file);
1171 FILE *fp = popen(command, "r");
1174 perror("popen for objdump failed");
1178 int debug = 0; /*Detect if the program has been compiled with -g */
1180 xbt_dict_t location_list = xbt_dict_new_homogeneous(NULL);
1181 char *line = NULL, *loc_expr = NULL;
1185 xbt_dynar_t split = NULL;
1187 while ((read = xbt_getline(&line, &n, fp)) != -1) {
1189 /* Wipeout the new line character */
1190 line[read - 1] = '\0';
1192 xbt_str_trim(line, NULL);
1197 if(strlen(line) == 0)
1202 if(strncmp(line, elf_file, strlen(elf_file)) == 0)
1205 if(strncmp(line, "Contents", 8) == 0)
1208 if(strncmp(line, "Offset", 6) == 0){
1215 XBT_INFO("Your program must be compiled with -g");
1219 xbt_dynar_t loclist = xbt_dynar_new(sizeof(dw_location_entry_t), NULL);
1221 xbt_str_strip_spaces(line);
1222 split = xbt_str_split(line, " ");
1224 while(read != -1 && strcmp("<End", (char *)xbt_dynar_get_as(split, 1, char *)) != 0){
1226 dw_location_entry_t new_entry = xbt_new0(s_dw_location_entry_t, 1);
1227 new_entry->lowpc = strtoul((char *)xbt_dynar_get_as(split, 1, char *), NULL, 16);
1228 new_entry->highpc = strtoul((char *)xbt_dynar_get_as(split, 2, char *), NULL, 16);
1231 while(cursor_remove < 3){
1232 xbt_dynar_remove_at(split, 0, NULL);
1236 loc_expr = xbt_str_join(split, " ");
1237 xbt_str_ltrim(loc_expr, "(");
1238 xbt_str_rtrim(loc_expr, ")");
1239 new_entry->location = get_location(NULL, loc_expr);
1241 xbt_dynar_push(loclist, &new_entry);
1243 xbt_dynar_free(&split);
1246 read = xbt_getline(&line, &n, fp);
1248 line[read - 1] = '\0';
1249 xbt_str_strip_spaces(line);
1250 split = xbt_str_split(line, " ");
1256 char *key = bprintf("%d", (int)strtoul((char *)xbt_dynar_get_as(split, 0, char *), NULL, 16));
1257 xbt_dict_set(location_list, key, loclist, NULL);
1260 xbt_dynar_free(&split);
1268 return location_list;
1271 static dw_frame_t get_frame_by_offset(xbt_dict_t all_variables, unsigned long int offset){
1273 xbt_dict_cursor_t cursor = NULL;
1277 xbt_dict_foreach(all_variables, cursor, name, res) {
1278 if(offset >= res->start && offset < res->end){
1279 xbt_dict_cursor_free(&cursor);
1284 xbt_dict_cursor_free(&cursor);
1289 void MC_get_local_variables(const char *elf_file, xbt_dict_t location_list, xbt_dict_t *all_variables){
1291 char *command = bprintf("objdump -Wi %s", elf_file);
1293 FILE *fp = popen(command, "r");
1296 perror("popen for objdump failed");
1298 char *line = NULL, *origin, *abstract_origin, *current_frame = NULL;
1301 int valid_variable = 1;
1302 char *node_type = NULL, *location_type = NULL, *variable_name = NULL, *loc_expr = NULL;
1303 xbt_dynar_t split = NULL, split2 = NULL;
1305 xbt_dict_t variables_origin = xbt_dict_new_homogeneous(NULL);
1306 xbt_dict_t subprograms_origin = xbt_dict_new_homogeneous(NULL);
1307 char *subprogram_name = NULL, *subprogram_start = NULL, *subprogram_end = NULL;
1308 int new_frame = 0, new_variable = 0;
1309 dw_frame_t variable_frame, subroutine_frame = NULL;
1311 read = xbt_getline(&line, &n, fp);
1313 while (read != -1) {
1316 read = xbt_getline(&line, &n, fp);
1320 /* Wipeout the new line character */
1321 line[read - 1] = '\0';
1323 if(strlen(line) == 0){
1324 read = xbt_getline(&line, &n, fp);
1328 xbt_str_ltrim(line, NULL);
1329 xbt_str_strip_spaces(line);
1332 read = xbt_getline(&line, &n, fp);
1336 xbt_dynar_free(&split);
1337 split = xbt_str_split(line, " ");
1340 node_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1342 if(strcmp(node_type, "(DW_TAG_subprogram)") == 0){ /* New frame */
1344 dw_frame_t frame = NULL;
1346 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1347 subprogram_start = strdup(strtok(NULL, "<"));
1348 xbt_str_rtrim(subprogram_start, ">:");
1350 read = xbt_getline(&line, &n, fp);
1355 read = xbt_getline(&line, &n, fp);
1359 /* Wipeout the new line character */
1360 line[read - 1] = '\0';
1362 if(strlen(line) == 0){
1363 read = xbt_getline(&line, &n, fp);
1367 xbt_dynar_free(&split);
1368 xbt_str_rtrim(line, NULL);
1369 xbt_str_strip_spaces(line);
1370 split = xbt_str_split(line, " ");
1372 node_type = xbt_dynar_get_as(split, 1, char *);
1374 if(strncmp(node_type, "DW_AT_", 6) != 0)
1377 if(strcmp(node_type, "DW_AT_sibling") == 0){
1379 subprogram_end = strdup(xbt_dynar_get_as(split, 3, char*));
1380 xbt_str_ltrim(subprogram_end, "<0x");
1381 xbt_str_rtrim(subprogram_end, ">");
1383 }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){ /* Frame already in dict */
1386 abstract_origin = strdup(xbt_dynar_get_as(split, 2, char*));
1387 xbt_str_ltrim(abstract_origin, "<0x");
1388 xbt_str_rtrim(abstract_origin, ">");
1389 subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, abstract_origin);
1390 frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
1391 xbt_free(abstract_origin);
1393 }else if(strcmp(node_type, "DW_AT_name") == 0){
1396 xbt_free(current_frame);
1397 frame = xbt_new0(s_dw_frame_t, 1);
1398 frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1399 frame->variables = xbt_dict_new_homogeneous(NULL);
1400 frame->frame_base = xbt_new0(s_dw_location_t, 1);
1401 current_frame = strdup(frame->name);
1403 xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
1405 }else if(strcmp(node_type, "DW_AT_frame_base") == 0){
1407 location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1409 if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
1411 frame->frame_base = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
1415 xbt_str_strip_spaces(line);
1416 split2 = xbt_str_split(line, "(");
1417 xbt_dynar_remove_at(split2, 0, NULL);
1418 loc_expr = xbt_str_join(split2, " ");
1419 xbt_str_rtrim(loc_expr, ")");
1420 frame->frame_base = get_location(NULL, loc_expr);
1421 xbt_dynar_free(&split2);
1426 }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
1429 frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1431 }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
1434 frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1436 }else if(strcmp(node_type, "DW_AT_MIPS_linkage_name:") == 0){
1438 xbt_free(frame->name);
1439 xbt_free(current_frame);
1440 frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1441 current_frame = strdup(frame->name);
1442 xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
1446 read = xbt_getline(&line, &n, fp);
1451 frame->start = strtoul(subprogram_start, NULL, 16);
1452 if(subprogram_end != NULL)
1453 frame->end = strtoul(subprogram_end, NULL, 16);
1454 xbt_dict_set(*all_variables, frame->name, frame, NULL);
1457 xbt_free(subprogram_start);
1458 xbt_free(subprogram_end);
1459 subprogram_end = NULL;
1462 }else if(strcmp(node_type, "(DW_TAG_variable)") == 0){ /* New variable */
1464 dw_local_variable_t var = NULL;
1466 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1467 origin = strdup(strtok(NULL, "<"));
1468 xbt_str_rtrim(origin, ">:");
1470 read = xbt_getline(&line, &n, fp);
1475 read = xbt_getline(&line, &n, fp);
1479 /* Wipeout the new line character */
1480 line[read - 1] = '\0';
1482 if(strlen(line) == 0){
1483 read = xbt_getline(&line, &n, fp);
1487 xbt_dynar_free(&split);
1488 xbt_str_rtrim(line, NULL);
1489 xbt_str_strip_spaces(line);
1490 split = xbt_str_split(line, " ");
1492 node_type = xbt_dynar_get_as(split, 1, char *);
1494 if(strncmp(node_type, "DW_AT_", 6) != 0)
1497 if(strcmp(node_type, "DW_AT_name") == 0){
1500 var = xbt_new0(s_dw_local_variable_t, 1);
1501 var->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1503 xbt_dict_set(variables_origin, origin, var->name, NULL);
1505 }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
1508 abstract_origin = xbt_dynar_get_as(split, 2, char *);
1509 xbt_str_ltrim(abstract_origin, "<0x");
1510 xbt_str_rtrim(abstract_origin, ">");
1512 variable_name = (char *)xbt_dict_get_or_null(variables_origin, abstract_origin);
1513 variable_frame = get_frame_by_offset(*all_variables, strtoul(abstract_origin, NULL, 16));
1514 var = xbt_dict_get_or_null(variable_frame->variables, variable_name);
1516 }else if(strcmp(node_type, "DW_AT_location") == 0){
1518 if(valid_variable == 1 && var != NULL){
1520 var->location = xbt_new0(s_dw_location_t, 1);
1522 location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1524 if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
1526 var->location = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
1530 xbt_str_strip_spaces(line);
1531 split2 = xbt_str_split(line, "(");
1532 xbt_dynar_remove_at(split2, 0, NULL);
1533 loc_expr = xbt_str_join(split2, " ");
1534 xbt_str_rtrim(loc_expr, ")");
1535 var->location = get_location(NULL, loc_expr);
1536 xbt_dynar_free(&split2);
1543 }else if(strcmp(node_type, "DW_AT_external") == 0){
1549 read = xbt_getline(&line, &n, fp);
1553 if(new_variable == 1 && valid_variable == 1){
1555 variable_frame = xbt_dict_get_or_null(*all_variables, current_frame);
1556 xbt_dict_set(variable_frame->variables, var->name, var, NULL);
1562 }else if(strcmp(node_type, "(DW_TAG_inlined_subroutine)") == 0){
1564 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1565 origin = strdup(strtok(NULL, "<"));
1566 xbt_str_rtrim(origin, ">:");
1568 read = xbt_getline(&line, &n, fp);
1572 /* Wipeout the new line character */
1573 line[read - 1] = '\0';
1576 read = xbt_getline(&line, &n, fp);
1580 if(strlen(line) == 0){
1581 read = xbt_getline(&line, &n, fp);
1585 xbt_dynar_free(&split);
1586 xbt_str_rtrim(line, NULL);
1587 xbt_str_strip_spaces(line);
1588 split = xbt_str_split(line, " ");
1590 if(strncmp(xbt_dynar_get_as(split, 1, char *), "DW_AT_", 6) != 0)
1593 node_type = xbt_dynar_get_as(split, 1, char *);
1595 if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
1597 origin = xbt_dynar_get_as(split, 2, char *);
1598 xbt_str_ltrim(origin, "<0x");
1599 xbt_str_rtrim(origin, ">");
1601 subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, origin);
1602 subroutine_frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
1604 }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
1606 subroutine_frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1608 }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
1610 subroutine_frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1613 read = xbt_getline(&line, &n, fp);
1619 read = xbt_getline(&line, &n, fp);
1625 xbt_dynar_free(&split);
1632 static dw_location_t get_location(xbt_dict_t location_list, char *expr){
1634 dw_location_t loc = xbt_new0(s_dw_location_t, 1);
1636 if(location_list != NULL){
1638 char *key = bprintf("%d", (int)strtoul(expr, NULL, 16));
1639 loc->type = e_dw_loclist;
1640 loc->location.loclist = (xbt_dynar_t)xbt_dict_get_or_null(location_list, key);
1641 if(loc->location.loclist == NULL)
1642 XBT_INFO("Key not found in loclist");
1649 char *tok = NULL, *tok2 = NULL;
1651 xbt_dynar_t tokens1 = xbt_str_split(expr, ";");
1652 xbt_dynar_t tokens2;
1654 loc->type = e_dw_compose;
1655 loc->location.compose = xbt_dynar_new(sizeof(dw_location_t), NULL);
1657 while(cursor < xbt_dynar_length(tokens1)){
1659 tok = xbt_dynar_get_as(tokens1, cursor, char*);
1660 tokens2 = xbt_str_split(tok, " ");
1661 tok2 = xbt_dynar_get_as(tokens2, 0, char*);
1663 if(strncmp(tok2, "DW_OP_reg", 9) == 0){
1664 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1665 new_element->type = e_dw_register;
1666 new_element->location.reg = atoi(strtok(tok2, "DW_OP_reg"));
1667 xbt_dynar_push(loc->location.compose, &new_element);
1668 }else if(strcmp(tok2, "DW_OP_fbreg:") == 0){
1669 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1670 new_element->type = e_dw_fbregister_op;
1671 new_element->location.fbreg_op = atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*));
1672 xbt_dynar_push(loc->location.compose, &new_element);
1673 }else if(strncmp(tok2, "DW_OP_breg", 10) == 0){
1674 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1675 new_element->type = e_dw_bregister_op;
1676 new_element->location.breg_op.reg = atoi(strtok(tok2, "DW_OP_breg"));
1677 new_element->location.breg_op.offset = atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*));
1678 xbt_dynar_push(loc->location.compose, &new_element);
1679 }else if(strncmp(tok2, "DW_OP_lit", 9) == 0){
1680 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1681 new_element->type = e_dw_lit;
1682 new_element->location.lit = atoi(strtok(tok2, "DW_OP_lit"));
1683 xbt_dynar_push(loc->location.compose, &new_element);
1684 }else if(strcmp(tok2, "DW_OP_piece:") == 0){
1685 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1686 new_element->type = e_dw_piece;
1687 new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*));
1688 /*if(strlen(xbt_dynar_get_as(tokens2, 1, char*)) > 1)
1689 new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1691 new_element->location.piece = xbt_dynar_get_as(tokens2, 1, char*)[0] - '0';*/
1692 xbt_dynar_push(loc->location.compose, &new_element);
1693 }else if(strcmp(tok2, "DW_OP_plus_uconst:") == 0){
1694 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1695 new_element->type = e_dw_plus_uconst;
1696 new_element->location.plus_uconst = atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char *));
1697 xbt_dynar_push(loc->location.compose, &new_element);
1698 }else if(strcmp(tok, "DW_OP_abs") == 0 ||
1699 strcmp(tok, "DW_OP_and") == 0 ||
1700 strcmp(tok, "DW_OP_div") == 0 ||
1701 strcmp(tok, "DW_OP_minus") == 0 ||
1702 strcmp(tok, "DW_OP_mod") == 0 ||
1703 strcmp(tok, "DW_OP_mul") == 0 ||
1704 strcmp(tok, "DW_OP_neg") == 0 ||
1705 strcmp(tok, "DW_OP_not") == 0 ||
1706 strcmp(tok, "DW_OP_or") == 0 ||
1707 strcmp(tok, "DW_OP_plus") == 0){
1708 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1709 new_element->type = e_dw_arithmetic;
1710 new_element->location.arithmetic = strdup(strtok(tok2, "DW_OP_"));
1711 xbt_dynar_push(loc->location.compose, &new_element);
1712 }else if(strcmp(tok, "DW_OP_stack_value") == 0){
1713 }else if(strcmp(tok2, "DW_OP_deref_size:") == 0){
1714 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1715 new_element->type = e_dw_deref;
1716 new_element->location.deref_size = (unsigned int short) atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*));
1717 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1718 new_element->location.deref_size = atoi(xbt_dynar_get_as(tokens, cursor, char*));
1720 new_element->location.deref_size = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
1721 xbt_dynar_push(loc->location.compose, &new_element);
1722 }else if(strcmp(tok, "DW_OP_deref") == 0){
1723 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1724 new_element->type = e_dw_deref;
1725 new_element->location.deref_size = sizeof(void *);
1726 xbt_dynar_push(loc->location.compose, &new_element);
1727 }else if(strcmp(tok2, "DW_OP_constu:") == 0){
1728 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1729 new_element->type = e_dw_uconstant;
1730 new_element->location.uconstant.bytes = 1;
1731 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*)));
1732 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1733 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens, cursor, char*)));
1735 new_element->location.uconstant.value = (unsigned long int)(xbt_dynar_get_as(tokens, cursor, char*)[0] - '0');*/
1736 xbt_dynar_push(loc->location.compose, &new_element);
1737 }else if(strcmp(tok2, "DW_OP_consts:") == 0){
1738 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1739 new_element->type = e_dw_sconstant;
1740 new_element->location.sconstant.bytes = 1;
1741 new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*)));
1742 xbt_dynar_push(loc->location.compose, &new_element);
1743 }else if(strcmp(tok2, "DW_OP_const1u:") == 0 ||
1744 strcmp(tok2, "DW_OP_const2u:") == 0 ||
1745 strcmp(tok2, "DW_OP_const4u:") == 0 ||
1746 strcmp(tok2, "DW_OP_const8u:") == 0){
1747 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1748 new_element->type = e_dw_uconstant;
1749 new_element->location.uconstant.bytes = tok2[11] - '0';
1750 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*)));
1751 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1752 new_element->location.constant.value = atoi(xbt_dynar_get_as(tokens, cursor, char*));
1754 new_element->location.constant.value = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
1755 xbt_dynar_push(loc->location.compose, &new_element);
1756 }else if(strcmp(tok, "DW_OP_const1s") == 0 ||
1757 strcmp(tok, "DW_OP_const2s") == 0 ||
1758 strcmp(tok, "DW_OP_const4s") == 0 ||
1759 strcmp(tok, "DW_OP_const8s") == 0){
1760 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1761 new_element->type = e_dw_sconstant;
1762 new_element->location.sconstant.bytes = tok2[11] - '0';
1763 new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*)));
1764 xbt_dynar_push(loc->location.compose, &new_element);
1766 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1767 new_element->type = e_dw_unsupported;
1768 xbt_dynar_push(loc->location.compose, &new_element);
1772 xbt_dynar_free(&tokens2);
1776 xbt_dynar_free(&tokens1);
1785 void print_local_variables(xbt_dict_t list){
1787 dw_location_entry_t entry;
1788 dw_location_t location_entry;
1789 unsigned int cursor3 = 0, cursor4 = 0;
1790 xbt_dict_cursor_t cursor = 0, cursor2 = 0;
1792 char *frame_name, *variable_name;
1793 dw_frame_t current_frame;
1794 dw_local_variable_t current_variable;
1796 xbt_dict_foreach(list, cursor, frame_name, current_frame){
1797 fprintf(stderr, "Frame name : %s\n", current_frame->name);
1798 fprintf(stderr, "Location type : %d\n", current_frame->frame_base->type);
1799 xbt_dict_foreach((xbt_dict_t)current_frame->variables, cursor2, variable_name, current_variable){
1800 fprintf(stderr, "Name : %s\n", current_variable->name);
1801 if(current_variable->location == NULL)
1803 fprintf(stderr, "Location type : %d\n", current_variable->location->type);
1804 switch(current_variable->location->type){
1806 xbt_dynar_foreach(current_variable->location->location.loclist, cursor3, entry){
1807 fprintf(stderr, "Lowpc : %lx, Highpc : %lx,", entry->lowpc, entry->highpc);
1808 switch(entry->location->type){
1809 case e_dw_register :
1810 fprintf(stderr, " Location : in register %d\n", entry->location->location.reg);
1812 case e_dw_bregister_op:
1813 fprintf(stderr, " Location : Add %d to the value in register %d\n", entry->location->location.breg_op.offset, entry->location->location.breg_op.reg);
1816 fprintf(stderr, "Value already kwnown : %d\n", entry->location->location.lit);
1818 case e_dw_fbregister_op:
1819 fprintf(stderr, " Location : %d bytes from logical frame pointer\n", entry->location->location.fbreg_op);
1822 fprintf(stderr, " Location :\n");
1823 xbt_dynar_foreach(entry->location->location.compose, cursor4, location_entry){
1824 switch(location_entry->type){
1825 case e_dw_register :
1826 fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
1828 case e_dw_bregister_op:
1829 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);
1832 fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
1834 case e_dw_fbregister_op:
1835 fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
1838 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);
1840 case e_dw_arithmetic :
1841 fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
1844 fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
1846 case e_dw_uconstant :
1847 fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
1849 case e_dw_sconstant :
1850 fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
1853 fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
1859 fprintf(stderr, "Location type not supported\n");
1866 fprintf(stderr, "Location :\n");
1867 xbt_dynar_foreach(current_variable->location->location.compose, cursor4, location_entry){
1868 switch(location_entry->type){
1869 case e_dw_register :
1870 fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
1872 case e_dw_bregister_op:
1873 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);
1876 fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
1878 case e_dw_fbregister_op:
1879 fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
1882 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);
1884 case e_dw_arithmetic :
1885 fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
1888 fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
1890 case e_dw_uconstant :
1891 fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
1893 case e_dw_sconstant :
1894 fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
1897 fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
1903 fprintf(stderr, "Location type not supported\n");
1911 static void MC_get_global_variables(char *elf_file){
1915 char *command = bprintf("objdump -t -j .data -j .bss %s", elf_file);
1917 fp = popen(command, "r");
1920 perror("popen failed");
1924 if(mc_global_variables == NULL)
1925 mc_global_variables = xbt_dynar_new(sizeof(global_variable_t), global_variable_free_voidp);
1931 xbt_dynar_t line_tokens = NULL;
1932 unsigned long offset;
1934 int type = strcmp(elf_file, xbt_binary_name); /* 0 = binary, other = libsimgrid */
1936 while ((read = xbt_getline(&line, &n, fp)) != -1){
1941 /* Wipeout the new line character */
1942 line[read - 1] = '\0';
1944 xbt_str_strip_spaces(line);
1945 xbt_str_ltrim(line, NULL);
1947 line_tokens = xbt_str_split(line, NULL);
1949 if(xbt_dynar_length(line_tokens) <= 4 || strcmp(xbt_dynar_get_as(line_tokens, 0, char *), "SYMBOL") == 0)
1952 if((strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "__gcov", 6) == 0)
1953 || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "gcov", 4) == 0)
1954 || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), ".data") == 0)
1955 || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), ".bss") == 0)
1956 || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "stderr", 6) == 0)
1957 || ((size_t)strtoul(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 2, char*), NULL, 16) == 0))
1960 global_variable_t var = xbt_new0(s_global_variable_t, 1);
1963 var->address = (void *)strtoul(xbt_dynar_get_as(line_tokens, 0, char*), NULL, 16);
1965 offset = strtoul(xbt_dynar_get_as(line_tokens, 0, char*), NULL, 16);
1966 var->address = (char *)start_text_libsimgrid+offset;
1969 var->size = (size_t)strtoul(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 2, char*), NULL, 16);
1970 var->name = strdup(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*));
1972 if(data_bss_ignore_size(var->address) > 0){
1973 global_variable_free(var);
1975 if(xbt_dynar_is_empty(mc_global_variables)){
1976 xbt_dynar_push(mc_global_variables, &var);
1978 unsigned int cursor = 0;
1980 int end = xbt_dynar_length(mc_global_variables) - 1;
1981 global_variable_t current_var = NULL;
1983 while(start <= end){
1984 cursor = (start + end) / 2;
1985 current_var = (global_variable_t)xbt_dynar_get_as(mc_global_variables, cursor, global_variable_t);
1986 if(current_var->address == var->address)
1988 if(current_var->address < var->address)
1990 if(current_var->address > var->address)
1994 if(current_var->address < var->address)
1995 xbt_dynar_insert_at(mc_global_variables, cursor + 1, &var);
1997 xbt_dynar_insert_at(mc_global_variables, cursor, &var);
2001 xbt_dynar_free(&line_tokens);
2011 void global_variable_free(global_variable_t v){
2016 void global_variable_free_voidp(void *v){
2017 global_variable_free((global_variable_t) * (void **) v);