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(){
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=.25; 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();
272 if((_sg_mc_dot_output_file != NULL) && (_sg_mc_dot_output_file[0]!='\0'))
273 MC_init_dot_output();
277 if(_sg_mc_visited > 0){
281 MC_init_memory_map_info();
282 get_libsimgrid_plt_section();
283 get_binary_plt_section();
290 /* Save the initial state */
291 initial_state_safety = xbt_new0(s_mc_global_t, 1);
292 initial_state_safety->snapshot = MC_take_snapshot();
303 void MC_modelcheck_liveness(){
305 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
309 mc_time = xbt_new0(double, simix_process_maxpid);
311 /* mc_time refers to clock for each process -> ignore it for heap comparison */
312 MC_ignore_heap(mc_time, simix_process_maxpid * sizeof(double));
316 /* Initialize statistics */
317 mc_stats = xbt_new0(s_mc_stats_t, 1);
318 mc_stats->state_size = 1;
320 /* Create exploration stack */
321 mc_stack_liveness = xbt_fifo_new();
323 /* Create the initial state */
324 initial_state_liveness = xbt_new0(s_mc_global_t, 1);
326 if((_sg_mc_dot_output_file != NULL) && (_sg_mc_dot_output_file[0]!='\0'))
327 MC_init_dot_output();
334 MC_print_statistics(mc_stats);
350 int SIMIX_pre_mc_random(smx_simcall_t simcall){
352 return simcall->mc_value;
358 /*FIXME: return mc_current_state->executed_transition->random.value;*/
359 return simcall_mc_random();
363 * \brief Schedules all the process that are ready to run
365 void MC_wait_for_requests(void)
367 smx_process_t process;
371 while (!xbt_dynar_is_empty(simix_global->process_to_run)) {
372 SIMIX_process_runall();
373 xbt_dynar_foreach(simix_global->process_that_ran, iter, process) {
374 req = &process->simcall;
375 if (req->call != SIMCALL_NONE && !MC_request_is_visible(req))
376 SIMIX_simcall_pre(req, 0);
381 int MC_deadlock_check()
383 int deadlock = FALSE;
384 smx_process_t process;
385 if(xbt_swag_size(simix_global->process_list)){
387 xbt_swag_foreach(process, simix_global->process_list){
388 if(process->simcall.call != SIMCALL_NONE
389 && MC_request_is_enabled(&process->simcall)){
399 * \brief Re-executes from the state at position start all the transitions indicated by
400 * a given model-checker stack.
401 * \param stack The stack with the transitions to execute.
402 * \param start Start index to begin the re-execution.
404 void MC_replay(xbt_fifo_t stack, int start)
406 int raw_mem = (mmalloc_get_current_heap() == raw_heap);
408 int value, i = 1, count = 1;
410 smx_simcall_t req = NULL, saved_req = NULL;
411 xbt_fifo_item_t item, start_item;
413 smx_process_t process = NULL;
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);
434 xbt_dict_reset(first_enabled_state);
435 xbt_swag_foreach(process, simix_global->process_list){
436 if(MC_process_is_enabled(process)){
437 char *key = bprintf("%lu", process->pid);
438 char *data = bprintf("%d", count);
439 xbt_dict_set(first_enabled_state, key, data, NULL);
446 /* Traverse the stack from the state at position start and re-execute the transitions */
447 for (item = start_item;
448 item != xbt_fifo_get_first_item(stack);
449 item = xbt_fifo_get_prev_item(item)) {
451 state = (mc_state_t) xbt_fifo_get_item_content(item);
452 saved_req = MC_state_get_executed_request(state, &value);
455 char *key = bprintf("%lu", saved_req->issuer->pid);
456 xbt_dict_remove(first_enabled_state, key);
461 /* because we got a copy of the executed request, we have to fetch the
462 real one, pointed by the request field of the issuer process */
463 req = &saved_req->issuer->simcall;
465 /* Debug information */
466 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
467 req_str = MC_request_to_string(req, value);
468 XBT_DEBUG("Replay: %s (%p)", req_str, state);
473 SIMIX_simcall_pre(req, value);
474 MC_wait_for_requests();
479 /* Insert in dict all enabled processes */
480 xbt_swag_foreach(process, simix_global->process_list){
481 if(MC_process_is_enabled(process) /*&& !MC_state_process_is_done(state, process)*/){
482 char *key = bprintf("%lu", process->pid);
483 if(xbt_dict_get_or_null(first_enabled_state, key) == NULL){
484 char *data = bprintf("%d", count);
485 xbt_dict_set(first_enabled_state, key, data, NULL);
492 /* Update statistics */
493 mc_stats->visited_states++;
494 mc_stats->executed_transitions++;
498 XBT_DEBUG("**** End Replay ****");
508 void MC_replay_liveness(xbt_fifo_t stack, int all_stack)
511 initial_state_liveness->raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
515 smx_simcall_t req = NULL, saved_req = NULL;
516 xbt_fifo_item_t item;
521 XBT_DEBUG("**** Begin Replay ****");
523 /* Restore the initial state */
524 MC_restore_snapshot(initial_state_liveness->snapshot);
526 /* At the moment of taking the snapshot the raw heap was set, so restoring
527 * it will set it back again, we have to unset it to continue */
528 if(!initial_state_liveness->raw_mem_set)
533 item = xbt_fifo_get_last_item(stack);
535 while(depth <= xbt_fifo_size(stack)){
537 pair = (mc_pair_t) xbt_fifo_get_item_content(item);
538 state = (mc_state_t) pair->graph_state;
540 if(pair->requests > 0){
542 saved_req = MC_state_get_executed_request(state, &value);
543 //XBT_DEBUG("SavedReq->call %u", saved_req->call);
545 if(saved_req != NULL){
546 /* because we got a copy of the executed request, we have to fetch the
547 real one, pointed by the request field of the issuer process */
548 req = &saved_req->issuer->simcall;
549 //XBT_DEBUG("Req->call %u", req->call);
551 /* Debug information */
552 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
553 req_str = MC_request_to_string(req, value);
554 XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
560 SIMIX_simcall_pre(req, value);
561 MC_wait_for_requests();
566 /* Update statistics */
567 mc_stats->visited_pairs++;
568 mc_stats->executed_transitions++;
570 item = xbt_fifo_get_prev_item(item);
575 /* Traverse the stack from the initial state and re-execute the transitions */
576 for (item = xbt_fifo_get_last_item(stack);
577 item != xbt_fifo_get_first_item(stack);
578 item = xbt_fifo_get_prev_item(item)) {
580 pair = (mc_pair_t) xbt_fifo_get_item_content(item);
581 state = (mc_state_t) pair->graph_state;
583 if(pair->requests > 0){
585 saved_req = MC_state_get_executed_request(state, &value);
586 //XBT_DEBUG("SavedReq->call %u", saved_req->call);
588 if(saved_req != NULL){
589 /* because we got a copy of the executed request, we have to fetch the
590 real one, pointed by the request field of the issuer process */
591 req = &saved_req->issuer->simcall;
592 //XBT_DEBUG("Req->call %u", req->call);
594 /* Debug information */
595 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
596 req_str = MC_request_to_string(req, value);
597 XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
603 SIMIX_simcall_pre(req, value);
604 MC_wait_for_requests();
609 /* Update statistics */
610 mc_stats->visited_pairs++;
611 mc_stats->executed_transitions++;
615 XBT_DEBUG("**** End Replay ****");
617 if(initial_state_liveness->raw_mem_set)
625 * \brief Dumps the contents of a model-checker's stack and shows the actual
627 * \param stack The stack to dump
629 void MC_dump_stack_safety(xbt_fifo_t stack)
632 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
634 MC_show_stack_safety(stack);
636 if(!_sg_mc_checkpoint){
641 while ((state = (mc_state_t) xbt_fifo_pop(stack)) != NULL)
642 MC_state_delete(state);
655 void MC_show_stack_safety(xbt_fifo_t stack)
659 xbt_fifo_item_t item;
661 char *req_str = NULL;
663 for (item = xbt_fifo_get_last_item(stack);
664 (item ? (state = (mc_state_t) (xbt_fifo_get_item_content(item)))
665 : (NULL)); item = xbt_fifo_get_prev_item(item)) {
666 req = MC_state_get_executed_request(state, &value);
668 req_str = MC_request_to_string(req, value);
669 XBT_INFO("%s", req_str);
675 void MC_show_deadlock(smx_simcall_t req)
677 /*char *req_str = NULL;*/
678 XBT_INFO("**************************");
679 XBT_INFO("*** DEAD-LOCK DETECTED ***");
680 XBT_INFO("**************************");
681 XBT_INFO("Locked request:");
682 /*req_str = MC_request_to_string(req);
683 XBT_INFO("%s", req_str);
685 XBT_INFO("Counter-example execution trace:");
686 MC_dump_stack_safety(mc_stack_safety);
690 void MC_show_stack_liveness(xbt_fifo_t stack){
693 xbt_fifo_item_t item;
695 char *req_str = NULL;
697 for (item = xbt_fifo_get_last_item(stack);
698 (item ? (pair = (mc_pair_t) (xbt_fifo_get_item_content(item)))
699 : (NULL)); item = xbt_fifo_get_prev_item(item)) {
700 req = MC_state_get_executed_request(pair->graph_state, &value);
702 if(pair->requests>0){
703 req_str = MC_request_to_string(req, value);
704 XBT_INFO("%s", req_str);
707 XBT_INFO("End of system requests but evolution in Büchi automaton");
713 void MC_dump_stack_liveness(xbt_fifo_t stack){
715 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
720 while ((pair = (mc_pair_t) xbt_fifo_pop(stack)) != NULL)
721 MC_pair_delete(pair);
730 void MC_print_statistics(mc_stats_t stats)
732 if(stats->expanded_pairs == 0){
733 XBT_INFO("Expanded states = %lu", stats->expanded_states);
734 XBT_INFO("Visited states = %lu", stats->visited_states);
736 XBT_INFO("Expanded pairs = %lu", stats->expanded_pairs);
737 XBT_INFO("Visited pairs = %lu", stats->visited_pairs);
739 XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
741 if((_sg_mc_dot_output_file != NULL) && (_sg_mc_dot_output_file[0]!='\0')){
742 fprintf(dot_output, "}\n");
748 void MC_assert(int prop)
750 if (MC_is_active() && !prop){
751 XBT_INFO("**************************");
752 XBT_INFO("*** PROPERTY NOT VALID ***");
753 XBT_INFO("**************************");
754 XBT_INFO("Counter-example execution trace:");
755 MC_dump_stack_safety(mc_stack_safety);
756 MC_print_statistics(mc_stats);
761 static void MC_assert_pair(int prop){
762 if (MC_is_active() && !prop) {
763 XBT_INFO("**************************");
764 XBT_INFO("*** PROPERTY NOT VALID ***");
765 XBT_INFO("**************************");
766 //XBT_INFO("Counter-example execution trace:");
767 MC_show_stack_liveness(mc_stack_liveness);
768 //MC_dump_snapshot_stack(mc_snapshot_stack);
769 MC_print_statistics(mc_stats);
774 void MC_process_clock_add(smx_process_t process, double amount)
776 mc_time[process->pid] += amount;
779 double MC_process_clock_get(smx_process_t process)
783 return mc_time[process->pid];
791 void MC_automaton_load(const char *file){
793 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
797 if (_mc_property_automaton == NULL)
798 _mc_property_automaton = xbt_automaton_new();
800 xbt_automaton_load(_mc_property_automaton,file);
809 void MC_automaton_new_propositional_symbol(const char* id, void* fct) {
811 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
815 if (_mc_property_automaton == NULL)
816 _mc_property_automaton = xbt_automaton_new();
818 xbt_automaton_propositional_symbol_new(_mc_property_automaton,id,fct);
827 /************ MC_ignore ***********/
829 void heap_ignore_region_free(mc_heap_ignore_region_t r){
833 void heap_ignore_region_free_voidp(void *r){
834 heap_ignore_region_free((mc_heap_ignore_region_t) * (void **) r);
837 void MC_ignore_heap(void *address, size_t size){
839 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
843 mc_heap_ignore_region_t region = NULL;
844 region = xbt_new0(s_mc_heap_ignore_region_t, 1);
845 region->address = address;
848 region->block = ((char*)address - (char*)((xbt_mheap_t)std_heap)->heapbase) / BLOCKSIZE + 1;
850 if(((xbt_mheap_t)std_heap)->heapinfo[region->block].type == 0){
851 region->fragment = -1;
852 ((xbt_mheap_t)std_heap)->heapinfo[region->block].busy_block.ignore++;
854 region->fragment = ((uintptr_t) (ADDR2UINT (address) % (BLOCKSIZE))) >> ((xbt_mheap_t)std_heap)->heapinfo[region->block].type;
855 ((xbt_mheap_t)std_heap)->heapinfo[region->block].busy_frag.ignore[region->fragment]++;
858 if(mc_heap_comparison_ignore == NULL){
859 mc_heap_comparison_ignore = xbt_dynar_new(sizeof(mc_heap_ignore_region_t), heap_ignore_region_free_voidp);
860 xbt_dynar_push(mc_heap_comparison_ignore, ®ion);
866 unsigned int cursor = 0;
867 mc_heap_ignore_region_t current_region = NULL;
869 int end = xbt_dynar_length(mc_heap_comparison_ignore) - 1;
872 cursor = (start + end) / 2;
873 current_region = (mc_heap_ignore_region_t)xbt_dynar_get_as(mc_heap_comparison_ignore, cursor, mc_heap_ignore_region_t);
874 if(current_region->address == address){
875 heap_ignore_region_free(region);
880 if(current_region->address < address)
882 if(current_region->address > address)
886 if(current_region->address < address)
887 xbt_dynar_insert_at(mc_heap_comparison_ignore, cursor + 1, ®ion);
889 xbt_dynar_insert_at(mc_heap_comparison_ignore, cursor, ®ion);
897 void MC_remove_ignore_heap(void *address, size_t size){
899 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
903 unsigned int cursor = 0;
905 int end = xbt_dynar_length(mc_heap_comparison_ignore) - 1;
906 mc_heap_ignore_region_t region;
907 int ignore_found = 0;
910 cursor = (start + end) / 2;
911 region = (mc_heap_ignore_region_t)xbt_dynar_get_as(mc_heap_comparison_ignore, cursor, mc_heap_ignore_region_t);
912 if(region->address == address){
916 if(region->address < address)
918 if(region->address > address){
919 if((char * )region->address <= ((char *)address + size)){
927 if(ignore_found == 1){
928 xbt_dynar_remove_at(mc_heap_comparison_ignore, cursor, NULL);
929 MC_remove_ignore_heap(address, size);
939 void data_bss_ignore_variable_free(mc_data_bss_ignore_variable_t v){
943 void data_bss_ignore_variable_free_voidp(void *v){
944 data_bss_ignore_variable_free((mc_data_bss_ignore_variable_t) * (void **) v);
947 void MC_ignore_data_bss(void *address, size_t size){
949 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
953 if(mc_data_bss_comparison_ignore == NULL)
954 mc_data_bss_comparison_ignore = xbt_dynar_new(sizeof(mc_data_bss_ignore_variable_t), data_bss_ignore_variable_free_voidp);
956 mc_data_bss_ignore_variable_t var = NULL;
957 var = xbt_new0(s_mc_data_bss_ignore_variable_t, 1);
958 var->address = address;
961 if(xbt_dynar_is_empty(mc_data_bss_comparison_ignore)){
963 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, 0, &var);
967 unsigned int cursor = 0;
969 int end = xbt_dynar_length(mc_data_bss_comparison_ignore) - 1;
970 mc_data_bss_ignore_variable_t current_var = NULL;
973 cursor = (start + end) / 2;
974 current_var = (mc_data_bss_ignore_variable_t)xbt_dynar_get_as(mc_data_bss_comparison_ignore, cursor, mc_data_bss_ignore_variable_t);
975 if(current_var->address == address){
976 data_bss_ignore_variable_free(var);
982 if(current_var->address < address)
984 if(current_var->address > address)
988 if(current_var->address < address)
989 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, cursor + 1, &var);
991 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, cursor, &var);
995 /* Remove variable from mc_global_variables */
997 if(mc_global_variables != NULL){
999 unsigned int cursor = 0;
1001 int end = xbt_dynar_length(mc_global_variables) - 1;
1002 global_variable_t current_var;
1005 while(start <= end){
1006 cursor = (start + end) / 2;
1007 current_var = (global_variable_t)xbt_dynar_get_as(mc_global_variables, cursor, global_variable_t);
1008 if(current_var->address == var->address){
1012 if(current_var->address < address)
1014 if(current_var->address > address)
1019 xbt_dynar_remove_at(mc_global_variables, cursor, NULL);
1029 static size_t data_bss_ignore_size(void *address){
1030 unsigned int cursor = 0;
1032 int end = xbt_dynar_length(mc_data_bss_comparison_ignore) - 1;
1033 mc_data_bss_ignore_variable_t var;
1035 while(start <= end){
1036 cursor = (start + end) / 2;
1037 var = (mc_data_bss_ignore_variable_t)xbt_dynar_get_as(mc_data_bss_comparison_ignore, cursor, mc_data_bss_ignore_variable_t);
1038 if(var->address == address)
1040 if(var->address < address){
1041 if((void *)((char *)var->address + var->size) > address)
1042 return (char *)var->address + var->size - (char*)address;
1046 if(var->address > address)
1053 void stack_ignore_variable_free(mc_stack_ignore_variable_t v){
1054 xbt_free(v->var_name);
1059 void stack_ignore_variable_free_voidp(void *v){
1060 stack_ignore_variable_free((mc_stack_ignore_variable_t) * (void **) v);
1063 void MC_ignore_stack(const char *var_name, const char *frame_name){
1065 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
1069 if(mc_stack_comparison_ignore == NULL)
1070 mc_stack_comparison_ignore = xbt_dynar_new(sizeof(mc_stack_ignore_variable_t), stack_ignore_variable_free_voidp);
1072 mc_stack_ignore_variable_t var = NULL;
1073 var = xbt_new0(s_mc_stack_ignore_variable_t, 1);
1074 var->var_name = strdup(var_name);
1075 var->frame = strdup(frame_name);
1077 if(xbt_dynar_is_empty(mc_stack_comparison_ignore)){
1079 xbt_dynar_insert_at(mc_stack_comparison_ignore, 0, &var);
1083 unsigned int cursor = 0;
1085 int end = xbt_dynar_length(mc_stack_comparison_ignore) - 1;
1086 mc_stack_ignore_variable_t current_var = NULL;
1088 while(start <= end){
1089 cursor = (start + end) / 2;
1090 current_var = (mc_stack_ignore_variable_t)xbt_dynar_get_as(mc_stack_comparison_ignore, cursor, mc_stack_ignore_variable_t);
1091 if(strcmp(current_var->frame, frame_name) == 0){
1092 if(strcmp(current_var->var_name, var_name) == 0){
1093 stack_ignore_variable_free(var);
1099 if(strcmp(current_var->var_name, var_name) < 0)
1101 if(strcmp(current_var->var_name, var_name) > 0)
1104 if(strcmp(current_var->frame, frame_name) < 0)
1106 if(strcmp(current_var->frame, frame_name) > 0)
1110 if(strcmp(current_var->frame, frame_name) < 0)
1111 xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor + 1, &var);
1113 xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor, &var);
1117 /* Remove variable from mc_local_variables */
1119 if(mc_local_variables != NULL){
1121 if(strcmp(frame_name, "*") != 0){
1122 dw_frame_t frame = xbt_dict_get_or_null(mc_local_variables, frame_name);
1124 xbt_dict_remove(frame->variables, var_name);
1136 void MC_new_stack_area(void *stack, char *name, void* context, size_t size){
1138 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
1141 if(stacks_areas == NULL)
1142 stacks_areas = xbt_dynar_new(sizeof(stack_region_t), NULL);
1144 stack_region_t region = NULL;
1145 region = xbt_new0(s_stack_region_t, 1);
1146 region->address = stack;
1147 region->process_name = strdup(name);
1148 region->context = context;
1149 region->size = size;
1150 region->block = ((char*)stack - (char*)((xbt_mheap_t)std_heap)->heapbase) / BLOCKSIZE + 1;
1151 xbt_dynar_push(stacks_areas, ®ion);
1159 /************ DWARF ***********/
1161 xbt_dict_t MC_get_location_list(const char *elf_file){
1163 char *command = bprintf("objdump -Wo %s", elf_file);
1165 FILE *fp = popen(command, "r");
1168 perror("popen for objdump failed");
1172 int debug = 0; /*Detect if the program has been compiled with -g */
1174 xbt_dict_t location_list = xbt_dict_new_homogeneous(NULL);
1175 char *line = NULL, *loc_expr = NULL;
1179 xbt_dynar_t split = NULL;
1181 while ((read = xbt_getline(&line, &n, fp)) != -1) {
1183 /* Wipeout the new line character */
1184 line[read - 1] = '\0';
1186 xbt_str_trim(line, NULL);
1191 if(strlen(line) == 0)
1196 if(strncmp(line, elf_file, strlen(elf_file)) == 0)
1199 if(strncmp(line, "Contents", 8) == 0)
1202 if(strncmp(line, "Offset", 6) == 0){
1209 XBT_INFO("Your program must be compiled with -g");
1213 xbt_dynar_t loclist = xbt_dynar_new(sizeof(dw_location_entry_t), NULL);
1215 xbt_str_strip_spaces(line);
1216 split = xbt_str_split(line, " ");
1218 while(read != -1 && strcmp("<End", (char *)xbt_dynar_get_as(split, 1, char *)) != 0){
1220 dw_location_entry_t new_entry = xbt_new0(s_dw_location_entry_t, 1);
1221 new_entry->lowpc = strtoul((char *)xbt_dynar_get_as(split, 1, char *), NULL, 16);
1222 new_entry->highpc = strtoul((char *)xbt_dynar_get_as(split, 2, char *), NULL, 16);
1225 while(cursor_remove < 3){
1226 xbt_dynar_remove_at(split, 0, NULL);
1230 loc_expr = xbt_str_join(split, " ");
1231 xbt_str_ltrim(loc_expr, "(");
1232 xbt_str_rtrim(loc_expr, ")");
1233 new_entry->location = get_location(NULL, loc_expr);
1235 xbt_dynar_push(loclist, &new_entry);
1237 xbt_dynar_free(&split);
1240 read = xbt_getline(&line, &n, fp);
1242 line[read - 1] = '\0';
1243 xbt_str_strip_spaces(line);
1244 split = xbt_str_split(line, " ");
1250 char *key = bprintf("%d", (int)strtoul((char *)xbt_dynar_get_as(split, 0, char *), NULL, 16));
1251 xbt_dict_set(location_list, key, loclist, NULL);
1254 xbt_dynar_free(&split);
1262 return location_list;
1265 static dw_frame_t get_frame_by_offset(xbt_dict_t all_variables, unsigned long int offset){
1267 xbt_dict_cursor_t cursor = NULL;
1271 xbt_dict_foreach(all_variables, cursor, name, res) {
1272 if(offset >= res->start && offset < res->end){
1273 xbt_dict_cursor_free(&cursor);
1278 xbt_dict_cursor_free(&cursor);
1283 void MC_get_local_variables(const char *elf_file, xbt_dict_t location_list, xbt_dict_t *all_variables){
1285 char *command = bprintf("objdump -Wi %s", elf_file);
1287 FILE *fp = popen(command, "r");
1290 perror("popen for objdump failed");
1292 char *line = NULL, *origin, *abstract_origin, *current_frame = NULL;
1295 int valid_variable = 1;
1296 char *node_type = NULL, *location_type = NULL, *variable_name = NULL, *loc_expr = NULL;
1297 xbt_dynar_t split = NULL, split2 = NULL;
1299 xbt_dict_t variables_origin = xbt_dict_new_homogeneous(NULL);
1300 xbt_dict_t subprograms_origin = xbt_dict_new_homogeneous(NULL);
1301 char *subprogram_name = NULL, *subprogram_start = NULL, *subprogram_end = NULL;
1302 int new_frame = 0, new_variable = 0;
1303 dw_frame_t variable_frame, subroutine_frame = NULL;
1305 read = xbt_getline(&line, &n, fp);
1307 while (read != -1) {
1310 read = xbt_getline(&line, &n, fp);
1314 /* Wipeout the new line character */
1315 line[read - 1] = '\0';
1317 if(strlen(line) == 0){
1318 read = xbt_getline(&line, &n, fp);
1322 xbt_str_ltrim(line, NULL);
1323 xbt_str_strip_spaces(line);
1326 read = xbt_getline(&line, &n, fp);
1330 xbt_dynar_free(&split);
1331 split = xbt_str_split(line, " ");
1334 node_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1336 if(strcmp(node_type, "(DW_TAG_subprogram)") == 0){ /* New frame */
1338 dw_frame_t frame = NULL;
1340 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1341 subprogram_start = strdup(strtok(NULL, "<"));
1342 xbt_str_rtrim(subprogram_start, ">:");
1344 read = xbt_getline(&line, &n, fp);
1349 read = xbt_getline(&line, &n, fp);
1353 /* Wipeout the new line character */
1354 line[read - 1] = '\0';
1356 if(strlen(line) == 0){
1357 read = xbt_getline(&line, &n, fp);
1361 xbt_dynar_free(&split);
1362 xbt_str_rtrim(line, NULL);
1363 xbt_str_strip_spaces(line);
1364 split = xbt_str_split(line, " ");
1366 node_type = xbt_dynar_get_as(split, 1, char *);
1368 if(strncmp(node_type, "DW_AT_", 6) != 0)
1371 if(strcmp(node_type, "DW_AT_sibling") == 0){
1373 subprogram_end = strdup(xbt_dynar_get_as(split, 3, char*));
1374 xbt_str_ltrim(subprogram_end, "<0x");
1375 xbt_str_rtrim(subprogram_end, ">");
1377 }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){ /* Frame already in dict */
1380 abstract_origin = strdup(xbt_dynar_get_as(split, 2, char*));
1381 xbt_str_ltrim(abstract_origin, "<0x");
1382 xbt_str_rtrim(abstract_origin, ">");
1383 subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, abstract_origin);
1384 frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
1385 xbt_free(abstract_origin);
1387 }else if(strcmp(node_type, "DW_AT_name") == 0){
1390 xbt_free(current_frame);
1391 frame = xbt_new0(s_dw_frame_t, 1);
1392 frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1393 frame->variables = xbt_dict_new_homogeneous(NULL);
1394 frame->frame_base = xbt_new0(s_dw_location_t, 1);
1395 current_frame = strdup(frame->name);
1397 xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
1399 }else if(strcmp(node_type, "DW_AT_frame_base") == 0){
1401 location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1403 if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
1405 frame->frame_base = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
1409 xbt_str_strip_spaces(line);
1410 split2 = xbt_str_split(line, "(");
1411 xbt_dynar_remove_at(split2, 0, NULL);
1412 loc_expr = xbt_str_join(split2, " ");
1413 xbt_str_rtrim(loc_expr, ")");
1414 frame->frame_base = get_location(NULL, loc_expr);
1415 xbt_dynar_free(&split2);
1420 }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
1423 frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1425 }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
1428 frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1430 }else if(strcmp(node_type, "DW_AT_MIPS_linkage_name:") == 0){
1432 xbt_free(frame->name);
1433 xbt_free(current_frame);
1434 frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1435 current_frame = strdup(frame->name);
1436 xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
1440 read = xbt_getline(&line, &n, fp);
1445 frame->start = strtoul(subprogram_start, NULL, 16);
1446 if(subprogram_end != NULL)
1447 frame->end = strtoul(subprogram_end, NULL, 16);
1448 xbt_dict_set(*all_variables, frame->name, frame, NULL);
1451 xbt_free(subprogram_start);
1452 xbt_free(subprogram_end);
1453 subprogram_end = NULL;
1456 }else if(strcmp(node_type, "(DW_TAG_variable)") == 0){ /* New variable */
1458 dw_local_variable_t var = NULL;
1460 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1461 origin = strdup(strtok(NULL, "<"));
1462 xbt_str_rtrim(origin, ">:");
1464 read = xbt_getline(&line, &n, fp);
1469 read = xbt_getline(&line, &n, fp);
1473 /* Wipeout the new line character */
1474 line[read - 1] = '\0';
1476 if(strlen(line) == 0){
1477 read = xbt_getline(&line, &n, fp);
1481 xbt_dynar_free(&split);
1482 xbt_str_rtrim(line, NULL);
1483 xbt_str_strip_spaces(line);
1484 split = xbt_str_split(line, " ");
1486 node_type = xbt_dynar_get_as(split, 1, char *);
1488 if(strncmp(node_type, "DW_AT_", 6) != 0)
1491 if(strcmp(node_type, "DW_AT_name") == 0){
1494 var = xbt_new0(s_dw_local_variable_t, 1);
1495 var->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1497 xbt_dict_set(variables_origin, origin, var->name, NULL);
1499 }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
1502 abstract_origin = xbt_dynar_get_as(split, 2, char *);
1503 xbt_str_ltrim(abstract_origin, "<0x");
1504 xbt_str_rtrim(abstract_origin, ">");
1506 variable_name = (char *)xbt_dict_get_or_null(variables_origin, abstract_origin);
1507 variable_frame = get_frame_by_offset(*all_variables, strtoul(abstract_origin, NULL, 16));
1508 var = xbt_dict_get_or_null(variable_frame->variables, variable_name);
1510 }else if(strcmp(node_type, "DW_AT_location") == 0){
1512 if(valid_variable == 1 && var != NULL){
1514 var->location = xbt_new0(s_dw_location_t, 1);
1516 location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1518 if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
1520 var->location = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
1524 xbt_str_strip_spaces(line);
1525 split2 = xbt_str_split(line, "(");
1526 xbt_dynar_remove_at(split2, 0, NULL);
1527 loc_expr = xbt_str_join(split2, " ");
1528 xbt_str_rtrim(loc_expr, ")");
1529 var->location = get_location(NULL, loc_expr);
1530 xbt_dynar_free(&split2);
1537 }else if(strcmp(node_type, "DW_AT_external") == 0){
1543 read = xbt_getline(&line, &n, fp);
1547 if(new_variable == 1 && valid_variable == 1){
1549 variable_frame = xbt_dict_get_or_null(*all_variables, current_frame);
1550 xbt_dict_set(variable_frame->variables, var->name, var, NULL);
1556 }else if(strcmp(node_type, "(DW_TAG_inlined_subroutine)") == 0){
1558 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1559 origin = strdup(strtok(NULL, "<"));
1560 xbt_str_rtrim(origin, ">:");
1562 read = xbt_getline(&line, &n, fp);
1566 /* Wipeout the new line character */
1567 line[read - 1] = '\0';
1570 read = xbt_getline(&line, &n, fp);
1574 if(strlen(line) == 0){
1575 read = xbt_getline(&line, &n, fp);
1579 xbt_dynar_free(&split);
1580 xbt_str_rtrim(line, NULL);
1581 xbt_str_strip_spaces(line);
1582 split = xbt_str_split(line, " ");
1584 if(strncmp(xbt_dynar_get_as(split, 1, char *), "DW_AT_", 6) != 0)
1587 node_type = xbt_dynar_get_as(split, 1, char *);
1589 if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
1591 origin = xbt_dynar_get_as(split, 2, char *);
1592 xbt_str_ltrim(origin, "<0x");
1593 xbt_str_rtrim(origin, ">");
1595 subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, origin);
1596 subroutine_frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
1598 }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
1600 subroutine_frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1602 }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
1604 subroutine_frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1607 read = xbt_getline(&line, &n, fp);
1613 read = xbt_getline(&line, &n, fp);
1619 xbt_dynar_free(&split);
1626 static dw_location_t get_location(xbt_dict_t location_list, char *expr){
1628 dw_location_t loc = xbt_new0(s_dw_location_t, 1);
1630 if(location_list != NULL){
1632 char *key = bprintf("%d", (int)strtoul(expr, NULL, 16));
1633 loc->type = e_dw_loclist;
1634 loc->location.loclist = (xbt_dynar_t)xbt_dict_get_or_null(location_list, key);
1635 if(loc->location.loclist == NULL)
1636 XBT_INFO("Key not found in loclist");
1643 char *tok = NULL, *tok2 = NULL;
1645 xbt_dynar_t tokens1 = xbt_str_split(expr, ";");
1646 xbt_dynar_t tokens2;
1648 loc->type = e_dw_compose;
1649 loc->location.compose = xbt_dynar_new(sizeof(dw_location_t), NULL);
1651 while(cursor < xbt_dynar_length(tokens1)){
1653 tok = xbt_dynar_get_as(tokens1, cursor, char*);
1654 tokens2 = xbt_str_split(tok, " ");
1655 tok2 = xbt_dynar_get_as(tokens2, 0, char*);
1657 if(strncmp(tok2, "DW_OP_reg", 9) == 0){
1658 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1659 new_element->type = e_dw_register;
1660 new_element->location.reg = atoi(strtok(tok2, "DW_OP_reg"));
1661 xbt_dynar_push(loc->location.compose, &new_element);
1662 }else if(strcmp(tok2, "DW_OP_fbreg:") == 0){
1663 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1664 new_element->type = e_dw_fbregister_op;
1665 new_element->location.fbreg_op = atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*));
1666 xbt_dynar_push(loc->location.compose, &new_element);
1667 }else if(strncmp(tok2, "DW_OP_breg", 10) == 0){
1668 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1669 new_element->type = e_dw_bregister_op;
1670 new_element->location.breg_op.reg = atoi(strtok(tok2, "DW_OP_breg"));
1671 new_element->location.breg_op.offset = 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_lit", 9) == 0){
1674 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1675 new_element->type = e_dw_lit;
1676 new_element->location.lit = atoi(strtok(tok2, "DW_OP_lit"));
1677 xbt_dynar_push(loc->location.compose, &new_element);
1678 }else if(strcmp(tok2, "DW_OP_piece:") == 0){
1679 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1680 new_element->type = e_dw_piece;
1681 new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*));
1682 /*if(strlen(xbt_dynar_get_as(tokens2, 1, char*)) > 1)
1683 new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1685 new_element->location.piece = xbt_dynar_get_as(tokens2, 1, char*)[0] - '0';*/
1686 xbt_dynar_push(loc->location.compose, &new_element);
1687 }else if(strcmp(tok2, "DW_OP_plus_uconst:") == 0){
1688 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1689 new_element->type = e_dw_plus_uconst;
1690 new_element->location.plus_uconst = atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char *));
1691 xbt_dynar_push(loc->location.compose, &new_element);
1692 }else if(strcmp(tok, "DW_OP_abs") == 0 ||
1693 strcmp(tok, "DW_OP_and") == 0 ||
1694 strcmp(tok, "DW_OP_div") == 0 ||
1695 strcmp(tok, "DW_OP_minus") == 0 ||
1696 strcmp(tok, "DW_OP_mod") == 0 ||
1697 strcmp(tok, "DW_OP_mul") == 0 ||
1698 strcmp(tok, "DW_OP_neg") == 0 ||
1699 strcmp(tok, "DW_OP_not") == 0 ||
1700 strcmp(tok, "DW_OP_or") == 0 ||
1701 strcmp(tok, "DW_OP_plus") == 0){
1702 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1703 new_element->type = e_dw_arithmetic;
1704 new_element->location.arithmetic = strdup(strtok(tok2, "DW_OP_"));
1705 xbt_dynar_push(loc->location.compose, &new_element);
1706 }else if(strcmp(tok, "DW_OP_stack_value") == 0){
1707 }else if(strcmp(tok2, "DW_OP_deref_size:") == 0){
1708 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1709 new_element->type = e_dw_deref;
1710 new_element->location.deref_size = (unsigned int short) atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*));
1711 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1712 new_element->location.deref_size = atoi(xbt_dynar_get_as(tokens, cursor, char*));
1714 new_element->location.deref_size = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
1715 xbt_dynar_push(loc->location.compose, &new_element);
1716 }else if(strcmp(tok, "DW_OP_deref") == 0){
1717 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1718 new_element->type = e_dw_deref;
1719 new_element->location.deref_size = sizeof(void *);
1720 xbt_dynar_push(loc->location.compose, &new_element);
1721 }else if(strcmp(tok2, "DW_OP_constu:") == 0){
1722 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1723 new_element->type = e_dw_uconstant;
1724 new_element->location.uconstant.bytes = 1;
1725 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*)));
1726 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1727 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens, cursor, char*)));
1729 new_element->location.uconstant.value = (unsigned long int)(xbt_dynar_get_as(tokens, cursor, char*)[0] - '0');*/
1730 xbt_dynar_push(loc->location.compose, &new_element);
1731 }else if(strcmp(tok2, "DW_OP_consts:") == 0){
1732 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1733 new_element->type = e_dw_sconstant;
1734 new_element->location.sconstant.bytes = 1;
1735 new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*)));
1736 xbt_dynar_push(loc->location.compose, &new_element);
1737 }else if(strcmp(tok2, "DW_OP_const1u:") == 0 ||
1738 strcmp(tok2, "DW_OP_const2u:") == 0 ||
1739 strcmp(tok2, "DW_OP_const4u:") == 0 ||
1740 strcmp(tok2, "DW_OP_const8u:") == 0){
1741 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1742 new_element->type = e_dw_uconstant;
1743 new_element->location.uconstant.bytes = tok2[11] - '0';
1744 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*)));
1745 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1746 new_element->location.constant.value = atoi(xbt_dynar_get_as(tokens, cursor, char*));
1748 new_element->location.constant.value = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
1749 xbt_dynar_push(loc->location.compose, &new_element);
1750 }else if(strcmp(tok, "DW_OP_const1s") == 0 ||
1751 strcmp(tok, "DW_OP_const2s") == 0 ||
1752 strcmp(tok, "DW_OP_const4s") == 0 ||
1753 strcmp(tok, "DW_OP_const8s") == 0){
1754 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1755 new_element->type = e_dw_sconstant;
1756 new_element->location.sconstant.bytes = tok2[11] - '0';
1757 new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*)));
1758 xbt_dynar_push(loc->location.compose, &new_element);
1760 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1761 new_element->type = e_dw_unsupported;
1762 xbt_dynar_push(loc->location.compose, &new_element);
1766 xbt_dynar_free(&tokens2);
1770 xbt_dynar_free(&tokens1);
1779 void print_local_variables(xbt_dict_t list){
1781 dw_location_entry_t entry;
1782 dw_location_t location_entry;
1783 unsigned int cursor3 = 0, cursor4 = 0;
1784 xbt_dict_cursor_t cursor = 0, cursor2 = 0;
1786 char *frame_name, *variable_name;
1787 dw_frame_t current_frame;
1788 dw_local_variable_t current_variable;
1790 xbt_dict_foreach(list, cursor, frame_name, current_frame){
1791 fprintf(stderr, "Frame name : %s\n", current_frame->name);
1792 fprintf(stderr, "Location type : %d\n", current_frame->frame_base->type);
1793 xbt_dict_foreach((xbt_dict_t)current_frame->variables, cursor2, variable_name, current_variable){
1794 fprintf(stderr, "Name : %s\n", current_variable->name);
1795 if(current_variable->location == NULL)
1797 fprintf(stderr, "Location type : %d\n", current_variable->location->type);
1798 switch(current_variable->location->type){
1800 xbt_dynar_foreach(current_variable->location->location.loclist, cursor3, entry){
1801 fprintf(stderr, "Lowpc : %lx, Highpc : %lx,", entry->lowpc, entry->highpc);
1802 switch(entry->location->type){
1803 case e_dw_register :
1804 fprintf(stderr, " Location : in register %d\n", entry->location->location.reg);
1806 case e_dw_bregister_op:
1807 fprintf(stderr, " Location : Add %d to the value in register %d\n", entry->location->location.breg_op.offset, entry->location->location.breg_op.reg);
1810 fprintf(stderr, "Value already kwnown : %d\n", entry->location->location.lit);
1812 case e_dw_fbregister_op:
1813 fprintf(stderr, " Location : %d bytes from logical frame pointer\n", entry->location->location.fbreg_op);
1816 fprintf(stderr, " Location :\n");
1817 xbt_dynar_foreach(entry->location->location.compose, cursor4, location_entry){
1818 switch(location_entry->type){
1819 case e_dw_register :
1820 fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
1822 case e_dw_bregister_op:
1823 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);
1826 fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
1828 case e_dw_fbregister_op:
1829 fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
1832 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);
1834 case e_dw_arithmetic :
1835 fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
1838 fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
1840 case e_dw_uconstant :
1841 fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
1843 case e_dw_sconstant :
1844 fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
1847 fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
1853 fprintf(stderr, "Location type not supported\n");
1860 fprintf(stderr, "Location :\n");
1861 xbt_dynar_foreach(current_variable->location->location.compose, cursor4, location_entry){
1862 switch(location_entry->type){
1863 case e_dw_register :
1864 fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
1866 case e_dw_bregister_op:
1867 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);
1870 fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
1872 case e_dw_fbregister_op:
1873 fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
1876 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);
1878 case e_dw_arithmetic :
1879 fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
1882 fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
1884 case e_dw_uconstant :
1885 fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
1887 case e_dw_sconstant :
1888 fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
1891 fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
1897 fprintf(stderr, "Location type not supported\n");
1905 static void MC_get_global_variables(char *elf_file){
1909 char *command = bprintf("objdump -t -j .data -j .bss %s", elf_file);
1911 fp = popen(command, "r");
1914 perror("popen failed");
1918 if(mc_global_variables == NULL)
1919 mc_global_variables = xbt_dynar_new(sizeof(global_variable_t), global_variable_free_voidp);
1925 xbt_dynar_t line_tokens = NULL;
1926 unsigned long offset;
1928 int type = strcmp(elf_file, xbt_binary_name); /* 0 = binary, other = libsimgrid */
1930 while ((read = xbt_getline(&line, &n, fp)) != -1){
1935 /* Wipeout the new line character */
1936 line[read - 1] = '\0';
1938 xbt_str_strip_spaces(line);
1939 xbt_str_ltrim(line, NULL);
1941 line_tokens = xbt_str_split(line, NULL);
1943 if(xbt_dynar_length(line_tokens) <= 4 || strcmp(xbt_dynar_get_as(line_tokens, 0, char *), "SYMBOL") == 0)
1946 if((strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "__gcov", 6) == 0)
1947 || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "gcov", 4) == 0)
1948 || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), ".data") == 0)
1949 || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), ".bss") == 0)
1950 || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "stderr", 6) == 0)
1951 || ((size_t)strtoul(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 2, char*), NULL, 16) == 0))
1954 global_variable_t var = xbt_new0(s_global_variable_t, 1);
1957 var->address = (void *)strtoul(xbt_dynar_get_as(line_tokens, 0, char*), NULL, 16);
1959 offset = strtoul(xbt_dynar_get_as(line_tokens, 0, char*), NULL, 16);
1960 var->address = (char *)start_text_libsimgrid+offset;
1963 var->size = (size_t)strtoul(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 2, char*), NULL, 16);
1964 var->name = strdup(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*));
1966 if(data_bss_ignore_size(var->address) > 0){
1967 global_variable_free(var);
1969 if(xbt_dynar_is_empty(mc_global_variables)){
1970 xbt_dynar_push(mc_global_variables, &var);
1972 unsigned int cursor = 0;
1974 int end = xbt_dynar_length(mc_global_variables) - 1;
1975 global_variable_t current_var = NULL;
1977 while(start <= end){
1978 cursor = (start + end) / 2;
1979 current_var = (global_variable_t)xbt_dynar_get_as(mc_global_variables, cursor, global_variable_t);
1980 if(current_var->address == var->address)
1982 if(current_var->address < var->address)
1984 if(current_var->address > var->address)
1988 if(current_var->address < var->address)
1989 xbt_dynar_insert_at(mc_global_variables, cursor + 1, &var);
1991 xbt_dynar_insert_at(mc_global_variables, cursor, &var);
1995 xbt_dynar_free(&line_tokens);
2005 void global_variable_free(global_variable_t v){
2010 void global_variable_free_voidp(void *v){
2011 global_variable_free((global_variable_t) * (void **) v);