1 /* Copyright (c) 2008-2013 Da SimGrid Team. All rights reserved. */
3 /* This program is free software; you can redistribute it and/or modify it
4 * under the terms of the license (GNU LGPL) which comes with this package. */
11 #include "simgrid/sg_config.h"
12 #include "../surf/surf_private.h"
13 #include "../simix/smx_private.h"
14 #include "../xbt/mmalloc/mmprivate.h"
16 #include "mc_private.h"
17 #include "xbt/automaton.h"
20 XBT_LOG_NEW_CATEGORY(mc, "All MC categories");
21 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_global, mc,
22 "Logging specific to MC (global)");
24 /* Configuration support */
25 e_mc_reduce_t mc_reduce_kind=e_mc_reduce_unset;
27 int _sg_do_model_check = 0;
28 int _sg_mc_checkpoint=0;
29 char* _sg_mc_property_file=NULL;
31 int _sg_mc_max_depth=1000;
33 char *_sg_mc_dot_output_file = NULL;
35 extern int _sg_init_status;
36 void _mc_cfg_cb_reduce(const char *name, int pos) {
37 if (_sg_init_status && !_sg_do_model_check) {
38 xbt_die("You are specifying a reduction strategy after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
40 char *val= xbt_cfg_get_string(_sg_cfg_set, name);
41 if (!strcasecmp(val,"none")) {
42 mc_reduce_kind = e_mc_reduce_none;
43 } else if (!strcasecmp(val,"dpor")) {
44 mc_reduce_kind = e_mc_reduce_dpor;
46 xbt_die("configuration option %s can only take 'none' or 'dpor' as a value",name);
50 void _mc_cfg_cb_checkpoint(const char *name, int pos) {
51 if (_sg_init_status && !_sg_do_model_check) {
52 xbt_die("You are specifying a checkpointing value after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
54 _sg_mc_checkpoint = xbt_cfg_get_int(_sg_cfg_set, name);
56 void _mc_cfg_cb_property(const char *name, int pos) {
57 if (_sg_init_status && !_sg_do_model_check) {
58 xbt_die("You are specifying a property after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
60 _sg_mc_property_file= xbt_cfg_get_string(_sg_cfg_set, name);
63 void _mc_cfg_cb_timeout(const char *name, int pos) {
64 if (_sg_init_status && !_sg_do_model_check) {
65 xbt_die("You are specifying a value to enable/disable timeout for wait requests after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
67 _sg_mc_timeout= xbt_cfg_get_int(_sg_cfg_set, name);
70 void _mc_cfg_cb_max_depth(const char *name, int pos) {
71 if (_sg_init_status && !_sg_do_model_check) {
72 xbt_die("You are specifying a max depth value after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
74 _sg_mc_max_depth= xbt_cfg_get_int(_sg_cfg_set, name);
77 void _mc_cfg_cb_visited(const char *name, int pos) {
78 if (_sg_init_status && !_sg_do_model_check) {
79 xbt_die("You are specifying a number of stored visited states after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
81 _sg_mc_visited= xbt_cfg_get_int(_sg_cfg_set, name);
84 void _mc_cfg_cb_dot_output(const char *name, int pos) {
85 if (_sg_init_status && !_sg_do_model_check) {
86 xbt_die("You are specifying a file name for a dot output of graph state after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
88 _sg_mc_dot_output_file= xbt_cfg_get_string(_sg_cfg_set, name);
91 /* MC global data structures */
93 mc_state_t mc_current_state = NULL;
94 char mc_replay_mode = FALSE;
95 double *mc_time = NULL;
96 mc_comparison_times_t mc_comp_times = NULL;
97 double mc_snapshot_comparison_time;
98 mc_stats_t mc_stats = NULL;
102 xbt_fifo_t mc_stack_safety = NULL;
103 mc_global_t initial_state_safety = NULL;
107 xbt_fifo_t mc_stack_liveness = NULL;
108 mc_global_t initial_state_liveness = NULL;
112 xbt_dict_t mc_local_variables = NULL;
114 xbt_dynar_t mc_global_variables = NULL;
116 /* Ignore mechanism */
117 xbt_dynar_t mc_stack_comparison_ignore;
118 xbt_dynar_t mc_data_bss_comparison_ignore;
119 extern xbt_dynar_t mc_heap_comparison_ignore;
120 extern xbt_dynar_t stacks_areas;
122 FILE *dot_output = NULL;
123 const char* colors[10];
125 xbt_automaton_t _mc_property_automaton = NULL;
127 /* Static functions */
129 static void MC_assert_pair(int prop);
130 static dw_location_t get_location(xbt_dict_t location_list, char *expr);
131 static dw_frame_t get_frame_by_offset(xbt_dict_t all_variables, unsigned long int offset);
132 static size_t data_bss_ignore_size(void *address);
133 static void MC_get_global_variables(char *elf_file);
135 void MC_do_the_modelcheck_for_real() {
138 mc_comp_times = xbt_new0(s_mc_comparison_times_t, 1);
141 if((_sg_mc_dot_output_file != NULL) && (_sg_mc_dot_output_file[0]!='\0'))
142 MC_init_dot_output();
144 if (!_sg_mc_property_file || _sg_mc_property_file[0]=='\0') {
145 if (mc_reduce_kind==e_mc_reduce_unset)
146 mc_reduce_kind=e_mc_reduce_dpor;
148 XBT_INFO("Check a safety property");
149 MC_modelcheck_safety();
153 if (mc_reduce_kind==e_mc_reduce_unset)
154 mc_reduce_kind=e_mc_reduce_none;
156 XBT_INFO("Check the liveness property %s",_sg_mc_property_file);
157 MC_automaton_load(_sg_mc_property_file);
158 MC_modelcheck_liveness();
163 void MC_compare(void){
169 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
173 /* Initialize the data structures that must be persistent across every
174 iteration of the model-checker (in RAW memory) */
178 MC_init_memory_map_info();
180 mc_local_variables = xbt_dict_new_homogeneous(NULL);
182 /* Get local variables in binary for state equality detection */
183 xbt_dict_t binary_location_list = MC_get_location_list(xbt_binary_name);
184 MC_get_local_variables(xbt_binary_name, binary_location_list, &mc_local_variables);
186 /* Get local variables in libsimgrid for state equality detection */
187 xbt_dict_t libsimgrid_location_list = MC_get_location_list(libsimgrid_path);
188 MC_get_local_variables(libsimgrid_path, libsimgrid_location_list, &mc_local_variables);
190 xbt_dict_free(&libsimgrid_location_list);
191 xbt_dict_free(&binary_location_list);
193 /* Get .plt section (start and end addresses) for data libsimgrid and data program comparison */
194 get_libsimgrid_plt_section();
195 get_binary_plt_section();
197 /* Get global variables */
198 MC_get_global_variables(xbt_binary_name);
199 MC_get_global_variables(libsimgrid_path);
203 /* Ignore some variables from xbt/ex.h used by exception e for stacks comparison */
204 MC_ignore_stack("e", "*");
205 MC_ignore_stack("__ex_cleanup", "*");
206 MC_ignore_stack("__ex_mctx_en", "*");
207 MC_ignore_stack("__ex_mctx_me", "*");
208 MC_ignore_stack("__xbt_ex_ctx_ptr", "*");
209 MC_ignore_stack("_log_ev", "*");
210 MC_ignore_stack("_throw_ctx", "*");
211 MC_ignore_stack("ctx", "*");
213 MC_ignore_stack("next_context", "smx_ctx_sysv_suspend_serial");
214 MC_ignore_stack("i", "smx_ctx_sysv_suspend_serial");
216 MC_ignore_data_bss(&mc_comp_times, sizeof(mc_comp_times));
217 MC_ignore_data_bss(&mc_snapshot_comparison_time, sizeof(mc_snapshot_comparison_time));
218 MC_ignore_data_bss(&mc_time, sizeof(mc_time));
225 void MC_init_dot_output(){
232 colors[5] = "purple";
233 colors[6] = "yellow";
234 colors[7] = "orange";
236 dot_output = fopen(_sg_mc_dot_output_file, "w");
238 if(dot_output == NULL){
239 perror("Error open dot output file");
243 fprintf(dot_output, "digraph graphname{\n fixedsize=true; rankdir=TB; ranksep=.20; edge [fontsize=12]; node [fontsize=10, shape=circle,width=.5 ]; graph [resolution=20, fontsize=10];\n");
247 void MC_modelcheck_safety(void)
249 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
251 /* Check if MC is already initialized */
252 if (initial_state_safety)
255 mc_time = xbt_new0(double, simix_process_maxpid);
257 /* mc_time refers to clock for each process -> ignore it for heap comparison */
258 MC_ignore_heap(mc_time, simix_process_maxpid * sizeof(double));
260 /* Initialize the data structures that must be persistent across every
261 iteration of the model-checker (in RAW memory) */
265 /* Initialize statistics */
266 mc_stats = xbt_new0(s_mc_stats_t, 1);
267 mc_stats->state_size = 1;
269 /* Create exploration stack */
270 mc_stack_safety = xbt_fifo_new();
274 if(_sg_mc_visited > 0){
278 MC_init_memory_map_info();
279 get_libsimgrid_plt_section();
280 get_binary_plt_section();
287 /* Save the initial state */
288 initial_state_safety = xbt_new0(s_mc_global_t, 1);
289 initial_state_safety->snapshot = MC_take_snapshot();
300 void MC_modelcheck_liveness(){
302 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
306 mc_time = xbt_new0(double, simix_process_maxpid);
308 /* mc_time refers to clock for each process -> ignore it for heap comparison */
309 MC_ignore_heap(mc_time, simix_process_maxpid * sizeof(double));
313 /* Initialize statistics */
314 mc_stats = xbt_new0(s_mc_stats_t, 1);
315 mc_stats->state_size = 1;
317 /* Create exploration stack */
318 mc_stack_liveness = xbt_fifo_new();
320 /* Create the initial state */
321 initial_state_liveness = xbt_new0(s_mc_global_t, 1);
328 MC_print_statistics(mc_stats);
340 if((_sg_mc_dot_output_file != NULL) && (_sg_mc_dot_output_file[0]!='\0')){
341 fprintf(dot_output, "}\n");
351 int SIMIX_pre_mc_random(smx_simcall_t simcall){
353 return simcall->mc_value;
359 /*FIXME: return mc_current_state->executed_transition->random.value;*/
360 return simcall_mc_random();
364 * \brief Schedules all the process that are ready to run
366 void MC_wait_for_requests(void)
368 smx_process_t process;
372 while (!xbt_dynar_is_empty(simix_global->process_to_run)) {
373 SIMIX_process_runall();
374 xbt_dynar_foreach(simix_global->process_that_ran, iter, process) {
375 req = &process->simcall;
376 if (req->call != SIMCALL_NONE && !MC_request_is_visible(req))
377 SIMIX_simcall_pre(req, 0);
382 int MC_deadlock_check()
384 int deadlock = FALSE;
385 smx_process_t process;
386 if(xbt_swag_size(simix_global->process_list)){
388 xbt_swag_foreach(process, simix_global->process_list){
389 if(process->simcall.call != SIMCALL_NONE
390 && MC_request_is_enabled(&process->simcall)){
400 * \brief Re-executes from the state at position start all the transitions indicated by
401 * a given model-checker stack.
402 * \param stack The stack with the transitions to execute.
403 * \param start Start index to begin the re-execution.
405 void MC_replay(xbt_fifo_t stack, int start)
407 int raw_mem = (mmalloc_get_current_heap() == raw_heap);
411 smx_simcall_t req = NULL, saved_req = NULL;
412 xbt_fifo_item_t item, start_item;
415 XBT_DEBUG("**** Begin Replay ****");
418 /* Restore the initial state */
419 MC_restore_snapshot(initial_state_safety->snapshot);
420 /* At the moment of taking the snapshot the raw heap was set, so restoring
421 * it will set it back again, we have to unset it to continue */
425 start_item = xbt_fifo_get_last_item(stack);
428 start_item = xbt_fifo_get_prev_item(start_item);
433 /* Traverse the stack from the state at position start and re-execute the transitions */
434 for (item = start_item;
435 item != xbt_fifo_get_first_item(stack);
436 item = xbt_fifo_get_prev_item(item)) {
438 state = (mc_state_t) xbt_fifo_get_item_content(item);
439 saved_req = MC_state_get_executed_request(state, &value);
442 /* because we got a copy of the executed request, we have to fetch the
443 real one, pointed by the request field of the issuer process */
444 req = &saved_req->issuer->simcall;
446 /* Debug information */
447 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
448 req_str = MC_request_to_string(req, value);
449 XBT_DEBUG("Replay: %s (%p)", req_str, state);
454 SIMIX_simcall_pre(req, value);
455 MC_wait_for_requests();
457 /* Update statistics */
458 mc_stats->visited_states++;
459 mc_stats->executed_transitions++;
461 XBT_DEBUG("**** End Replay ****");
471 void MC_replay_liveness(xbt_fifo_t stack, int all_stack)
474 initial_state_liveness->raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
478 smx_simcall_t req = NULL, saved_req = NULL;
479 xbt_fifo_item_t item;
484 XBT_DEBUG("**** Begin Replay ****");
486 /* Restore the initial state */
487 MC_restore_snapshot(initial_state_liveness->snapshot);
489 /* At the moment of taking the snapshot the raw heap was set, so restoring
490 * it will set it back again, we have to unset it to continue */
491 if(!initial_state_liveness->raw_mem_set)
496 item = xbt_fifo_get_last_item(stack);
498 while(depth <= xbt_fifo_size(stack)){
500 pair = (mc_pair_t) xbt_fifo_get_item_content(item);
501 state = (mc_state_t) pair->graph_state;
503 if(pair->requests > 0){
505 saved_req = MC_state_get_executed_request(state, &value);
506 //XBT_DEBUG("SavedReq->call %u", saved_req->call);
508 if(saved_req != NULL){
509 /* because we got a copy of the executed request, we have to fetch the
510 real one, pointed by the request field of the issuer process */
511 req = &saved_req->issuer->simcall;
512 //XBT_DEBUG("Req->call %u", req->call);
514 /* Debug information */
515 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
516 req_str = MC_request_to_string(req, value);
517 XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
523 SIMIX_simcall_pre(req, value);
524 MC_wait_for_requests();
529 /* Update statistics */
530 mc_stats->visited_states++;
531 mc_stats->executed_transitions++;
533 item = xbt_fifo_get_prev_item(item);
538 /* Traverse the stack from the initial state and re-execute the transitions */
539 for (item = xbt_fifo_get_last_item(stack);
540 item != xbt_fifo_get_first_item(stack);
541 item = xbt_fifo_get_prev_item(item)) {
543 pair = (mc_pair_t) xbt_fifo_get_item_content(item);
544 state = (mc_state_t) pair->graph_state;
546 if(pair->requests > 0){
548 saved_req = MC_state_get_executed_request(state, &value);
549 //XBT_DEBUG("SavedReq->call %u", saved_req->call);
551 if(saved_req != NULL){
552 /* because we got a copy of the executed request, we have to fetch the
553 real one, pointed by the request field of the issuer process */
554 req = &saved_req->issuer->simcall;
555 //XBT_DEBUG("Req->call %u", req->call);
557 /* Debug information */
558 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
559 req_str = MC_request_to_string(req, value);
560 XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
566 SIMIX_simcall_pre(req, value);
567 MC_wait_for_requests();
572 /* Update statistics */
573 mc_stats->visited_states++;
574 mc_stats->executed_transitions++;
578 XBT_DEBUG("**** End Replay ****");
580 if(initial_state_liveness->raw_mem_set)
588 * \brief Dumps the contents of a model-checker's stack and shows the actual
590 * \param stack The stack to dump
592 void MC_dump_stack_safety(xbt_fifo_t stack)
595 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
597 MC_show_stack_safety(stack);
599 if(!_sg_mc_checkpoint){
604 while ((state = (mc_state_t) xbt_fifo_pop(stack)) != NULL)
605 MC_state_delete(state);
618 void MC_show_stack_safety(xbt_fifo_t stack)
622 xbt_fifo_item_t item;
624 char *req_str = NULL;
626 for (item = xbt_fifo_get_last_item(stack);
627 (item ? (state = (mc_state_t) (xbt_fifo_get_item_content(item)))
628 : (NULL)); item = xbt_fifo_get_prev_item(item)) {
629 req = MC_state_get_executed_request(state, &value);
631 req_str = MC_request_to_string(req, value);
632 XBT_INFO("%s", req_str);
638 void MC_show_deadlock(smx_simcall_t req)
640 /*char *req_str = NULL;*/
641 XBT_INFO("**************************");
642 XBT_INFO("*** DEAD-LOCK DETECTED ***");
643 XBT_INFO("**************************");
644 XBT_INFO("Locked request:");
645 /*req_str = MC_request_to_string(req);
646 XBT_INFO("%s", req_str);
648 XBT_INFO("Counter-example execution trace:");
649 MC_dump_stack_safety(mc_stack_safety);
653 void MC_show_stack_liveness(xbt_fifo_t stack){
656 xbt_fifo_item_t item;
658 char *req_str = NULL;
660 for (item = xbt_fifo_get_last_item(stack);
661 (item ? (pair = (mc_pair_t) (xbt_fifo_get_item_content(item)))
662 : (NULL)); item = xbt_fifo_get_prev_item(item)) {
663 req = MC_state_get_executed_request(pair->graph_state, &value);
665 if(pair->requests>0){
666 req_str = MC_request_to_string(req, value);
667 XBT_INFO("%s", req_str);
670 XBT_INFO("End of system requests but evolution in Büchi automaton");
676 void MC_dump_stack_liveness(xbt_fifo_t stack){
678 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
683 while ((pair = (mc_pair_t) xbt_fifo_pop(stack)) != NULL)
684 MC_pair_delete(pair);
693 void MC_print_statistics(mc_stats_t stats)
695 //XBT_INFO("State space size ~= %lu", stats->state_size);
696 XBT_INFO("Expanded states = %lu", stats->expanded_states);
697 XBT_INFO("Visited states = %lu", stats->visited_states);
698 XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
699 XBT_INFO("Expanded / Visited = %lf",
700 (double) stats->visited_states / stats->expanded_states);
701 /*XBT_INFO("Exploration coverage = %lf",
702 (double)stats->expanded_states / stats->state_size); */
705 void MC_assert(int prop)
707 if (MC_is_active() && !prop){
708 XBT_INFO("**************************");
709 XBT_INFO("*** PROPERTY NOT VALID ***");
710 XBT_INFO("**************************");
711 XBT_INFO("Counter-example execution trace:");
712 MC_dump_stack_safety(mc_stack_safety);
713 MC_print_statistics(mc_stats);
718 static void MC_assert_pair(int prop){
719 if (MC_is_active() && !prop) {
720 XBT_INFO("**************************");
721 XBT_INFO("*** PROPERTY NOT VALID ***");
722 XBT_INFO("**************************");
723 //XBT_INFO("Counter-example execution trace:");
724 MC_show_stack_liveness(mc_stack_liveness);
725 //MC_dump_snapshot_stack(mc_snapshot_stack);
726 MC_print_statistics(mc_stats);
731 void MC_process_clock_add(smx_process_t process, double amount)
733 mc_time[process->pid] += amount;
736 double MC_process_clock_get(smx_process_t process)
740 return mc_time[process->pid];
748 void MC_automaton_load(const char *file){
750 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
754 if (_mc_property_automaton == NULL)
755 _mc_property_automaton = xbt_automaton_new();
757 xbt_automaton_load(_mc_property_automaton,file);
766 void MC_automaton_new_propositional_symbol(const char* id, void* fct) {
768 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
772 if (_mc_property_automaton == NULL)
773 _mc_property_automaton = xbt_automaton_new();
775 xbt_automaton_propositional_symbol_new(_mc_property_automaton,id,fct);
784 /************ MC_ignore ***********/
786 void heap_ignore_region_free(mc_heap_ignore_region_t r){
790 void heap_ignore_region_free_voidp(void *r){
791 heap_ignore_region_free((mc_heap_ignore_region_t) * (void **) r);
794 void MC_ignore_heap(void *address, size_t size){
796 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
800 mc_heap_ignore_region_t region = NULL;
801 region = xbt_new0(s_mc_heap_ignore_region_t, 1);
802 region->address = address;
805 region->block = ((char*)address - (char*)((xbt_mheap_t)std_heap)->heapbase) / BLOCKSIZE + 1;
807 if(((xbt_mheap_t)std_heap)->heapinfo[region->block].type == 0){
808 region->fragment = -1;
809 ((xbt_mheap_t)std_heap)->heapinfo[region->block].busy_block.ignore = 1;
811 region->fragment = ((uintptr_t) (ADDR2UINT (address) % (BLOCKSIZE))) >> ((xbt_mheap_t)std_heap)->heapinfo[region->block].type;
812 ((xbt_mheap_t)std_heap)->heapinfo[region->block].busy_frag.ignore[region->fragment] = 1;
815 if(mc_heap_comparison_ignore == NULL){
816 mc_heap_comparison_ignore = xbt_dynar_new(sizeof(mc_heap_ignore_region_t), heap_ignore_region_free_voidp);
817 xbt_dynar_push(mc_heap_comparison_ignore, ®ion);
823 unsigned int cursor = 0;
824 mc_heap_ignore_region_t current_region;
826 int end = xbt_dynar_length(mc_heap_comparison_ignore) - 1;
829 cursor = (start + end) / 2;
830 current_region = (mc_heap_ignore_region_t)xbt_dynar_get_as(mc_heap_comparison_ignore, cursor, mc_heap_ignore_region_t);
831 if(current_region->address == address){
832 heap_ignore_region_free(region);
837 if(current_region->address < address)
839 if(current_region->address > address)
843 if(current_region->address < address)
844 xbt_dynar_insert_at(mc_heap_comparison_ignore, cursor + 1, ®ion);
846 xbt_dynar_insert_at(mc_heap_comparison_ignore, cursor, ®ion);
854 void MC_remove_ignore_heap(void *address, size_t size){
856 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
860 unsigned int cursor = 0;
862 int end = xbt_dynar_length(mc_heap_comparison_ignore) - 1;
863 mc_heap_ignore_region_t region;
864 int ignore_found = 0;
867 cursor = (start + end) / 2;
868 region = (mc_heap_ignore_region_t)xbt_dynar_get_as(mc_heap_comparison_ignore, cursor, mc_heap_ignore_region_t);
869 if(region->address == address){
873 if(region->address < address)
875 if(region->address > address){
876 if((char * )region->address <= ((char *)address + size)){
884 if(ignore_found == 1){
885 xbt_dynar_remove_at(mc_heap_comparison_ignore, cursor, NULL);
886 MC_remove_ignore_heap(address, size);
896 void MC_ignore_data_bss(void *address, size_t size){
898 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
902 if(mc_data_bss_comparison_ignore == NULL)
903 mc_data_bss_comparison_ignore = xbt_dynar_new(sizeof(mc_data_bss_ignore_variable_t), NULL);
905 mc_data_bss_ignore_variable_t var = NULL;
906 var = xbt_new0(s_mc_data_bss_ignore_variable_t, 1);
907 var->address = address;
910 if(xbt_dynar_is_empty(mc_data_bss_comparison_ignore)){
912 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, 0, &var);
916 unsigned int cursor = 0;
918 int end = xbt_dynar_length(mc_data_bss_comparison_ignore) - 1;
919 mc_data_bss_ignore_variable_t current_var = NULL;
922 cursor = (start + end) / 2;
923 current_var = (mc_data_bss_ignore_variable_t)xbt_dynar_get_as(mc_data_bss_comparison_ignore, cursor, mc_data_bss_ignore_variable_t);
924 if(current_var->address == address){
930 if(current_var->address < address)
932 if(current_var->address > address)
936 if(current_var->address < address)
937 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, cursor + 1, &var);
939 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, cursor, &var);
943 /* Remove variable from mc_global_variables */
945 if(mc_global_variables != NULL){
947 unsigned int cursor = 0;
949 int end = xbt_dynar_length(mc_global_variables) - 1;
950 global_variable_t current_var;
954 cursor = (start + end) / 2;
955 current_var = (global_variable_t)xbt_dynar_get_as(mc_global_variables, cursor, global_variable_t);
956 if(current_var->address == var->address){
960 if(current_var->address < address)
962 if(current_var->address > address)
967 xbt_dynar_remove_at(mc_global_variables, cursor, NULL);
977 static size_t data_bss_ignore_size(void *address){
978 unsigned int cursor = 0;
980 int end = xbt_dynar_length(mc_data_bss_comparison_ignore) - 1;
981 mc_data_bss_ignore_variable_t var;
984 cursor = (start + end) / 2;
985 var = (mc_data_bss_ignore_variable_t)xbt_dynar_get_as(mc_data_bss_comparison_ignore, cursor, mc_data_bss_ignore_variable_t);
986 if(var->address == address)
988 if(var->address < address){
989 if((void *)((char *)var->address + var->size) > address)
990 return (char *)var->address + var->size - (char*)address;
994 if(var->address > address)
1003 void MC_ignore_stack(const char *var_name, const char *frame_name){
1005 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
1009 if(mc_stack_comparison_ignore == NULL)
1010 mc_stack_comparison_ignore = xbt_dynar_new(sizeof(mc_stack_ignore_variable_t), NULL);
1012 if(xbt_dynar_is_empty(mc_stack_comparison_ignore)){
1014 mc_stack_ignore_variable_t var = NULL;
1015 var = xbt_new0(s_mc_stack_ignore_variable_t, 1);
1016 var->var_name = strdup(var_name);
1017 var->frame = strdup(frame_name);
1019 xbt_dynar_insert_at(mc_stack_comparison_ignore, 0, &var);
1023 unsigned int cursor = 0;
1025 int end = xbt_dynar_length(mc_stack_comparison_ignore) - 1;
1026 mc_stack_ignore_variable_t current_var = NULL;
1028 while(start <= end){
1029 cursor = (start + end) / 2;
1030 current_var = (mc_stack_ignore_variable_t)xbt_dynar_get_as(mc_stack_comparison_ignore, cursor, mc_stack_ignore_variable_t);
1031 if(strcmp(current_var->frame, frame_name) == 0){
1032 if(strcmp(current_var->var_name, var_name) == 0){
1038 if(strcmp(current_var->var_name, var_name) < 0)
1040 if(strcmp(current_var->var_name, var_name) > 0)
1043 if(strcmp(current_var->frame, frame_name) < 0)
1045 if(strcmp(current_var->frame, frame_name) > 0)
1049 mc_stack_ignore_variable_t var = NULL;
1050 var = xbt_new0(s_mc_stack_ignore_variable_t, 1);
1051 var->var_name = strdup(var_name);
1052 var->frame = strdup(frame_name);
1054 if(strcmp(current_var->frame, frame_name) < 0)
1055 xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor + 1, &var);
1057 xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor, &var);
1061 /* Remove variable from mc_local_variables */
1063 if(mc_local_variables != NULL){
1065 if(strcmp(frame_name, "*") != 0){
1066 dw_frame_t frame = xbt_dict_get_or_null(mc_local_variables, frame_name);
1068 xbt_dict_remove(frame->variables, var_name);
1080 void MC_new_stack_area(void *stack, char *name, void* context, size_t size){
1082 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
1085 if(stacks_areas == NULL)
1086 stacks_areas = xbt_dynar_new(sizeof(stack_region_t), NULL);
1088 stack_region_t region = NULL;
1089 region = xbt_new0(s_stack_region_t, 1);
1090 region->address = stack;
1091 region->process_name = strdup(name);
1092 region->context = context;
1093 region->size = size;
1094 region->block = ((char*)stack - (char*)((xbt_mheap_t)std_heap)->heapbase) / BLOCKSIZE + 1;
1095 xbt_dynar_push(stacks_areas, ®ion);
1103 /************ DWARF ***********/
1105 xbt_dict_t MC_get_location_list(const char *elf_file){
1107 char *command = bprintf("objdump -Wo %s", elf_file);
1109 FILE *fp = popen(command, "r");
1112 perror("popen for objdump failed");
1116 int debug = 0; /*Detect if the program has been compiled with -g */
1118 xbt_dict_t location_list = xbt_dict_new_homogeneous(NULL);
1119 char *line = NULL, *loc_expr = NULL;
1123 xbt_dynar_t split = NULL;
1125 while ((read = xbt_getline(&line, &n, fp)) != -1) {
1127 /* Wipeout the new line character */
1128 line[read - 1] = '\0';
1130 xbt_str_trim(line, NULL);
1135 if(strlen(line) == 0)
1140 if(strncmp(line, elf_file, strlen(elf_file)) == 0)
1143 if(strncmp(line, "Contents", 8) == 0)
1146 if(strncmp(line, "Offset", 6) == 0){
1153 XBT_INFO("Your program must be compiled with -g");
1157 xbt_dynar_t loclist = xbt_dynar_new(sizeof(dw_location_entry_t), NULL);
1159 xbt_str_strip_spaces(line);
1160 split = xbt_str_split(line, " ");
1162 while(read != -1 && strcmp("<End", (char *)xbt_dynar_get_as(split, 1, char *)) != 0){
1164 dw_location_entry_t new_entry = xbt_new0(s_dw_location_entry_t, 1);
1165 new_entry->lowpc = strtoul((char *)xbt_dynar_get_as(split, 1, char *), NULL, 16);
1166 new_entry->highpc = strtoul((char *)xbt_dynar_get_as(split, 2, char *), NULL, 16);
1169 while(cursor_remove < 3){
1170 xbt_dynar_remove_at(split, 0, NULL);
1174 loc_expr = xbt_str_join(split, " ");
1175 xbt_str_ltrim(loc_expr, "(");
1176 xbt_str_rtrim(loc_expr, ")");
1177 new_entry->location = get_location(NULL, loc_expr);
1179 xbt_dynar_push(loclist, &new_entry);
1181 xbt_dynar_free(&split);
1184 read = xbt_getline(&line, &n, fp);
1186 line[read - 1] = '\0';
1187 xbt_str_strip_spaces(line);
1188 split = xbt_str_split(line, " ");
1194 char *key = bprintf("%d", (int)strtoul((char *)xbt_dynar_get_as(split, 0, char *), NULL, 16));
1195 xbt_dict_set(location_list, key, loclist, NULL);
1198 xbt_dynar_free(&split);
1206 return location_list;
1209 static dw_frame_t get_frame_by_offset(xbt_dict_t all_variables, unsigned long int offset){
1211 xbt_dict_cursor_t cursor = NULL;
1215 xbt_dict_foreach(all_variables, cursor, name, res) {
1216 if(offset >= res->start && offset < res->end){
1217 xbt_dict_cursor_free(&cursor);
1222 xbt_dict_cursor_free(&cursor);
1227 void MC_get_local_variables(const char *elf_file, xbt_dict_t location_list, xbt_dict_t *all_variables){
1229 char *command = bprintf("objdump -Wi %s", elf_file);
1231 FILE *fp = popen(command, "r");
1234 perror("popen for objdump failed");
1236 char *line = NULL, *origin, *abstract_origin, *current_frame = NULL;
1239 int valid_variable = 1;
1240 char *node_type = NULL, *location_type = NULL, *variable_name = NULL, *loc_expr = NULL;
1241 xbt_dynar_t split = NULL, split2 = NULL;
1243 xbt_dict_t variables_origin = xbt_dict_new_homogeneous(NULL);
1244 xbt_dict_t subprograms_origin = xbt_dict_new_homogeneous(NULL);
1245 char *subprogram_name = NULL, *subprogram_start = NULL, *subprogram_end = NULL;
1246 int new_frame = 0, new_variable = 0;
1247 dw_frame_t variable_frame, subroutine_frame = NULL;
1249 read = xbt_getline(&line, &n, fp);
1251 while (read != -1) {
1254 read = xbt_getline(&line, &n, fp);
1258 /* Wipeout the new line character */
1259 line[read - 1] = '\0';
1261 if(strlen(line) == 0){
1262 read = xbt_getline(&line, &n, fp);
1266 xbt_str_ltrim(line, NULL);
1267 xbt_str_strip_spaces(line);
1270 read = xbt_getline(&line, &n, fp);
1274 xbt_dynar_free(&split);
1275 split = xbt_str_split(line, " ");
1278 node_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1280 if(strcmp(node_type, "(DW_TAG_subprogram)") == 0){ /* New frame */
1282 dw_frame_t frame = NULL;
1284 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1285 subprogram_start = strdup(strtok(NULL, "<"));
1286 xbt_str_rtrim(subprogram_start, ">:");
1288 read = xbt_getline(&line, &n, fp);
1293 read = xbt_getline(&line, &n, fp);
1297 /* Wipeout the new line character */
1298 line[read - 1] = '\0';
1300 if(strlen(line) == 0){
1301 read = xbt_getline(&line, &n, fp);
1305 xbt_dynar_free(&split);
1306 xbt_str_rtrim(line, NULL);
1307 xbt_str_strip_spaces(line);
1308 split = xbt_str_split(line, " ");
1310 node_type = xbt_dynar_get_as(split, 1, char *);
1312 if(strncmp(node_type, "DW_AT_", 6) != 0)
1315 if(strcmp(node_type, "DW_AT_sibling") == 0){
1317 subprogram_end = strdup(xbt_dynar_get_as(split, 3, char*));
1318 xbt_str_ltrim(subprogram_end, "<0x");
1319 xbt_str_rtrim(subprogram_end, ">");
1321 }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){ /* Frame already in dict */
1324 abstract_origin = strdup(xbt_dynar_get_as(split, 2, char*));
1325 xbt_str_ltrim(abstract_origin, "<0x");
1326 xbt_str_rtrim(abstract_origin, ">");
1327 subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, abstract_origin);
1328 frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
1329 xbt_free(abstract_origin);
1331 }else if(strcmp(node_type, "DW_AT_name") == 0){
1334 xbt_free(current_frame);
1335 frame = xbt_new0(s_dw_frame_t, 1);
1336 frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1337 frame->variables = xbt_dict_new_homogeneous(NULL);
1338 frame->frame_base = xbt_new0(s_dw_location_t, 1);
1339 current_frame = strdup(frame->name);
1341 xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
1343 }else if(strcmp(node_type, "DW_AT_frame_base") == 0){
1345 location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1347 if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
1349 frame->frame_base = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
1353 xbt_str_strip_spaces(line);
1354 split2 = xbt_str_split(line, "(");
1355 xbt_dynar_remove_at(split2, 0, NULL);
1356 loc_expr = xbt_str_join(split2, " ");
1357 xbt_str_rtrim(loc_expr, ")");
1358 frame->frame_base = get_location(NULL, loc_expr);
1359 xbt_dynar_free(&split2);
1364 }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
1367 frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1369 }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
1372 frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1374 }else if(strcmp(node_type, "DW_AT_MIPS_linkage_name:") == 0){
1376 xbt_free(frame->name);
1377 xbt_free(current_frame);
1378 frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1379 current_frame = strdup(frame->name);
1380 xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
1384 read = xbt_getline(&line, &n, fp);
1389 frame->start = strtoul(subprogram_start, NULL, 16);
1390 if(subprogram_end != NULL)
1391 frame->end = strtoul(subprogram_end, NULL, 16);
1392 xbt_dict_set(*all_variables, frame->name, frame, NULL);
1395 xbt_free(subprogram_start);
1396 xbt_free(subprogram_end);
1397 subprogram_end = NULL;
1400 }else if(strcmp(node_type, "(DW_TAG_variable)") == 0){ /* New variable */
1402 dw_local_variable_t var = NULL;
1404 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1405 origin = strdup(strtok(NULL, "<"));
1406 xbt_str_rtrim(origin, ">:");
1408 read = xbt_getline(&line, &n, fp);
1413 read = xbt_getline(&line, &n, fp);
1417 /* Wipeout the new line character */
1418 line[read - 1] = '\0';
1420 if(strlen(line) == 0){
1421 read = xbt_getline(&line, &n, fp);
1425 xbt_dynar_free(&split);
1426 xbt_str_rtrim(line, NULL);
1427 xbt_str_strip_spaces(line);
1428 split = xbt_str_split(line, " ");
1430 node_type = xbt_dynar_get_as(split, 1, char *);
1432 if(strncmp(node_type, "DW_AT_", 6) != 0)
1435 if(strcmp(node_type, "DW_AT_name") == 0){
1438 var = xbt_new0(s_dw_local_variable_t, 1);
1439 var->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1441 xbt_dict_set(variables_origin, origin, var->name, NULL);
1443 }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
1446 abstract_origin = xbt_dynar_get_as(split, 2, char *);
1447 xbt_str_ltrim(abstract_origin, "<0x");
1448 xbt_str_rtrim(abstract_origin, ">");
1450 variable_name = (char *)xbt_dict_get_or_null(variables_origin, abstract_origin);
1451 variable_frame = get_frame_by_offset(*all_variables, strtoul(abstract_origin, NULL, 16));
1452 var = xbt_dict_get_or_null(variable_frame->variables, variable_name);
1454 }else if(strcmp(node_type, "DW_AT_location") == 0){
1456 if(valid_variable == 1 && var != NULL){
1458 var->location = xbt_new0(s_dw_location_t, 1);
1460 location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1462 if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
1464 var->location = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
1468 xbt_str_strip_spaces(line);
1469 split2 = xbt_str_split(line, "(");
1470 xbt_dynar_remove_at(split2, 0, NULL);
1471 loc_expr = xbt_str_join(split2, " ");
1472 xbt_str_rtrim(loc_expr, ")");
1473 var->location = get_location(NULL, loc_expr);
1474 xbt_dynar_free(&split2);
1481 }else if(strcmp(node_type, "DW_AT_external") == 0){
1487 read = xbt_getline(&line, &n, fp);
1491 if(new_variable == 1 && valid_variable == 1){
1493 variable_frame = xbt_dict_get_or_null(*all_variables, current_frame);
1494 xbt_dict_set(variable_frame->variables, var->name, var, NULL);
1500 }else if(strcmp(node_type, "(DW_TAG_inlined_subroutine)") == 0){
1502 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1503 origin = strdup(strtok(NULL, "<"));
1504 xbt_str_rtrim(origin, ">:");
1506 read = xbt_getline(&line, &n, fp);
1510 /* Wipeout the new line character */
1511 line[read - 1] = '\0';
1514 read = xbt_getline(&line, &n, fp);
1518 if(strlen(line) == 0){
1519 read = xbt_getline(&line, &n, fp);
1523 xbt_dynar_free(&split);
1524 xbt_str_rtrim(line, NULL);
1525 xbt_str_strip_spaces(line);
1526 split = xbt_str_split(line, " ");
1528 if(strncmp(xbt_dynar_get_as(split, 1, char *), "DW_AT_", 6) != 0)
1531 node_type = xbt_dynar_get_as(split, 1, char *);
1533 if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
1535 origin = xbt_dynar_get_as(split, 2, char *);
1536 xbt_str_ltrim(origin, "<0x");
1537 xbt_str_rtrim(origin, ">");
1539 subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, origin);
1540 subroutine_frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
1542 }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
1544 subroutine_frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1546 }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
1548 subroutine_frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1551 read = xbt_getline(&line, &n, fp);
1557 read = xbt_getline(&line, &n, fp);
1563 xbt_dynar_free(&split);
1570 static dw_location_t get_location(xbt_dict_t location_list, char *expr){
1572 dw_location_t loc = xbt_new0(s_dw_location_t, 1);
1574 if(location_list != NULL){
1576 char *key = bprintf("%d", (int)strtoul(expr, NULL, 16));
1577 loc->type = e_dw_loclist;
1578 loc->location.loclist = (xbt_dynar_t)xbt_dict_get_or_null(location_list, key);
1579 if(loc->location.loclist == NULL)
1580 XBT_INFO("Key not found in loclist");
1587 char *tok = NULL, *tok2 = NULL;
1589 xbt_dynar_t tokens1 = xbt_str_split(expr, ";");
1590 xbt_dynar_t tokens2;
1592 loc->type = e_dw_compose;
1593 loc->location.compose = xbt_dynar_new(sizeof(dw_location_t), NULL);
1595 while(cursor < xbt_dynar_length(tokens1)){
1597 tok = xbt_dynar_get_as(tokens1, cursor, char*);
1598 tokens2 = xbt_str_split(tok, " ");
1599 tok2 = xbt_dynar_get_as(tokens2, 0, char*);
1601 if(strncmp(tok2, "DW_OP_reg", 9) == 0){
1602 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1603 new_element->type = e_dw_register;
1604 new_element->location.reg = atoi(strtok(tok2, "DW_OP_reg"));
1605 xbt_dynar_push(loc->location.compose, &new_element);
1606 }else if(strcmp(tok2, "DW_OP_fbreg:") == 0){
1607 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1608 new_element->type = e_dw_fbregister_op;
1609 new_element->location.fbreg_op = atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*));
1610 xbt_dynar_push(loc->location.compose, &new_element);
1611 }else if(strncmp(tok2, "DW_OP_breg", 10) == 0){
1612 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1613 new_element->type = e_dw_bregister_op;
1614 new_element->location.breg_op.reg = atoi(strtok(tok2, "DW_OP_breg"));
1615 new_element->location.breg_op.offset = atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*));
1616 xbt_dynar_push(loc->location.compose, &new_element);
1617 }else if(strncmp(tok2, "DW_OP_lit", 9) == 0){
1618 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1619 new_element->type = e_dw_lit;
1620 new_element->location.lit = atoi(strtok(tok2, "DW_OP_lit"));
1621 xbt_dynar_push(loc->location.compose, &new_element);
1622 }else if(strcmp(tok2, "DW_OP_piece:") == 0){
1623 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1624 new_element->type = e_dw_piece;
1625 new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*));
1626 /*if(strlen(xbt_dynar_get_as(tokens2, 1, char*)) > 1)
1627 new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1629 new_element->location.piece = xbt_dynar_get_as(tokens2, 1, char*)[0] - '0';*/
1630 xbt_dynar_push(loc->location.compose, &new_element);
1631 }else if(strcmp(tok2, "DW_OP_plus_uconst:") == 0){
1632 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1633 new_element->type = e_dw_plus_uconst;
1634 new_element->location.plus_uconst = atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char *));
1635 xbt_dynar_push(loc->location.compose, &new_element);
1636 }else if(strcmp(tok, "DW_OP_abs") == 0 ||
1637 strcmp(tok, "DW_OP_and") == 0 ||
1638 strcmp(tok, "DW_OP_div") == 0 ||
1639 strcmp(tok, "DW_OP_minus") == 0 ||
1640 strcmp(tok, "DW_OP_mod") == 0 ||
1641 strcmp(tok, "DW_OP_mul") == 0 ||
1642 strcmp(tok, "DW_OP_neg") == 0 ||
1643 strcmp(tok, "DW_OP_not") == 0 ||
1644 strcmp(tok, "DW_OP_or") == 0 ||
1645 strcmp(tok, "DW_OP_plus") == 0){
1646 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1647 new_element->type = e_dw_arithmetic;
1648 new_element->location.arithmetic = strdup(strtok(tok2, "DW_OP_"));
1649 xbt_dynar_push(loc->location.compose, &new_element);
1650 }else if(strcmp(tok, "DW_OP_stack_value") == 0){
1651 }else if(strcmp(tok2, "DW_OP_deref_size:") == 0){
1652 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1653 new_element->type = e_dw_deref;
1654 new_element->location.deref_size = (unsigned int short) atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*));
1655 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1656 new_element->location.deref_size = atoi(xbt_dynar_get_as(tokens, cursor, char*));
1658 new_element->location.deref_size = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
1659 xbt_dynar_push(loc->location.compose, &new_element);
1660 }else if(strcmp(tok, "DW_OP_deref") == 0){
1661 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1662 new_element->type = e_dw_deref;
1663 new_element->location.deref_size = sizeof(void *);
1664 xbt_dynar_push(loc->location.compose, &new_element);
1665 }else if(strcmp(tok2, "DW_OP_constu:") == 0){
1666 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1667 new_element->type = e_dw_uconstant;
1668 new_element->location.uconstant.bytes = 1;
1669 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*)));
1670 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1671 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens, cursor, char*)));
1673 new_element->location.uconstant.value = (unsigned long int)(xbt_dynar_get_as(tokens, cursor, char*)[0] - '0');*/
1674 xbt_dynar_push(loc->location.compose, &new_element);
1675 }else if(strcmp(tok2, "DW_OP_consts:") == 0){
1676 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1677 new_element->type = e_dw_sconstant;
1678 new_element->location.sconstant.bytes = 1;
1679 new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*)));
1680 xbt_dynar_push(loc->location.compose, &new_element);
1681 }else if(strcmp(tok2, "DW_OP_const1u:") == 0 ||
1682 strcmp(tok2, "DW_OP_const2u:") == 0 ||
1683 strcmp(tok2, "DW_OP_const4u:") == 0 ||
1684 strcmp(tok2, "DW_OP_const8u:") == 0){
1685 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1686 new_element->type = e_dw_uconstant;
1687 new_element->location.uconstant.bytes = tok2[11] - '0';
1688 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*)));
1689 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1690 new_element->location.constant.value = atoi(xbt_dynar_get_as(tokens, cursor, char*));
1692 new_element->location.constant.value = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
1693 xbt_dynar_push(loc->location.compose, &new_element);
1694 }else if(strcmp(tok, "DW_OP_const1s") == 0 ||
1695 strcmp(tok, "DW_OP_const2s") == 0 ||
1696 strcmp(tok, "DW_OP_const4s") == 0 ||
1697 strcmp(tok, "DW_OP_const8s") == 0){
1698 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1699 new_element->type = e_dw_sconstant;
1700 new_element->location.sconstant.bytes = tok2[11] - '0';
1701 new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*)));
1702 xbt_dynar_push(loc->location.compose, &new_element);
1704 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1705 new_element->type = e_dw_unsupported;
1706 xbt_dynar_push(loc->location.compose, &new_element);
1710 xbt_dynar_free(&tokens2);
1714 xbt_dynar_free(&tokens1);
1723 void print_local_variables(xbt_dict_t list){
1725 dw_location_entry_t entry;
1726 dw_location_t location_entry;
1727 unsigned int cursor3 = 0, cursor4 = 0;
1728 xbt_dict_cursor_t cursor = 0, cursor2 = 0;
1730 char *frame_name, *variable_name;
1731 dw_frame_t current_frame;
1732 dw_local_variable_t current_variable;
1734 xbt_dict_foreach(list, cursor, frame_name, current_frame){
1735 fprintf(stderr, "Frame name : %s\n", current_frame->name);
1736 fprintf(stderr, "Location type : %d\n", current_frame->frame_base->type);
1737 xbt_dict_foreach((xbt_dict_t)current_frame->variables, cursor2, variable_name, current_variable){
1738 fprintf(stderr, "Name : %s\n", current_variable->name);
1739 if(current_variable->location == NULL)
1741 fprintf(stderr, "Location type : %d\n", current_variable->location->type);
1742 switch(current_variable->location->type){
1744 xbt_dynar_foreach(current_variable->location->location.loclist, cursor3, entry){
1745 fprintf(stderr, "Lowpc : %lx, Highpc : %lx,", entry->lowpc, entry->highpc);
1746 switch(entry->location->type){
1747 case e_dw_register :
1748 fprintf(stderr, " Location : in register %d\n", entry->location->location.reg);
1750 case e_dw_bregister_op:
1751 fprintf(stderr, " Location : Add %d to the value in register %d\n", entry->location->location.breg_op.offset, entry->location->location.breg_op.reg);
1754 fprintf(stderr, "Value already kwnown : %d\n", entry->location->location.lit);
1756 case e_dw_fbregister_op:
1757 fprintf(stderr, " Location : %d bytes from logical frame pointer\n", entry->location->location.fbreg_op);
1760 fprintf(stderr, " Location :\n");
1761 xbt_dynar_foreach(entry->location->location.compose, cursor4, location_entry){
1762 switch(location_entry->type){
1763 case e_dw_register :
1764 fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
1766 case e_dw_bregister_op:
1767 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);
1770 fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
1772 case e_dw_fbregister_op:
1773 fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
1776 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);
1778 case e_dw_arithmetic :
1779 fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
1782 fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
1784 case e_dw_uconstant :
1785 fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
1787 case e_dw_sconstant :
1788 fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
1791 fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
1797 fprintf(stderr, "Location type not supported\n");
1804 fprintf(stderr, "Location :\n");
1805 xbt_dynar_foreach(current_variable->location->location.compose, cursor4, location_entry){
1806 switch(location_entry->type){
1807 case e_dw_register :
1808 fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
1810 case e_dw_bregister_op:
1811 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);
1814 fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
1816 case e_dw_fbregister_op:
1817 fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
1820 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);
1822 case e_dw_arithmetic :
1823 fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
1826 fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
1828 case e_dw_uconstant :
1829 fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
1831 case e_dw_sconstant :
1832 fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
1835 fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
1841 fprintf(stderr, "Location type not supported\n");
1849 static void MC_get_global_variables(char *elf_file){
1853 char *command = bprintf("objdump -t -j .data -j .bss %s", elf_file);
1855 fp = popen(command, "r");
1858 perror("popen failed");
1862 if(mc_global_variables == NULL)
1863 mc_global_variables = xbt_dynar_new(sizeof(global_variable_t), global_variable_free_voidp);
1869 xbt_dynar_t line_tokens = NULL;
1870 unsigned long offset;
1872 int type = strcmp(elf_file, xbt_binary_name); /* 0 = binary, other = libsimgrid */
1874 while ((read = xbt_getline(&line, &n, fp)) != -1){
1879 /* Wipeout the new line character */
1880 line[read - 1] = '\0';
1882 xbt_str_strip_spaces(line);
1883 xbt_str_ltrim(line, NULL);
1885 line_tokens = xbt_str_split(line, NULL);
1887 if(xbt_dynar_length(line_tokens) <= 4 || strcmp(xbt_dynar_get_as(line_tokens, 0, char *), "SYMBOL") == 0)
1890 if((strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "__gcov", 6) == 0)
1891 || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "gcov", 4) == 0)
1892 || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), ".data") == 0)
1893 || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), ".bss") == 0)
1894 || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "stderr", 6) == 0)
1895 || ((size_t)strtoul(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 2, char*), NULL, 16) == 0))
1898 global_variable_t var = xbt_new0(s_global_variable_t, 1);
1901 var->address = (void *)strtoul(xbt_dynar_get_as(line_tokens, 0, char*), NULL, 16);
1903 offset = strtoul(xbt_dynar_get_as(line_tokens, 0, char*), NULL, 16);
1904 var->address = (char *)start_text_libsimgrid+offset;
1907 var->size = (size_t)strtoul(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 2, char*), NULL, 16);
1908 var->name = strdup(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*));
1910 if(data_bss_ignore_size(var->address) > 0){
1911 global_variable_free(var);
1913 if(xbt_dynar_is_empty(mc_global_variables)){
1914 xbt_dynar_push(mc_global_variables, &var);
1916 unsigned int cursor = 0;
1918 int end = xbt_dynar_length(mc_global_variables) - 1;
1919 global_variable_t current_var = NULL;
1921 while(start <= end){
1922 cursor = (start + end) / 2;
1923 current_var = (global_variable_t)xbt_dynar_get_as(mc_global_variables, cursor, global_variable_t);
1924 if(current_var->address == var->address)
1926 if(current_var->address < var->address)
1928 if(current_var->address > var->address)
1932 if(current_var->address < var->address)
1933 xbt_dynar_insert_at(mc_global_variables, cursor + 1, &var);
1935 xbt_dynar_insert_at(mc_global_variables, cursor, &var);
1939 xbt_dynar_free(&line_tokens);
1949 void global_variable_free(global_variable_t v){
1954 void global_variable_free_voidp(void *v){
1955 global_variable_free((global_variable_t) * (void **) v);