1 /* Copyright (c) 2008-2012 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 "../surf/surf_private.h"
12 #include "../simix/smx_private.h"
13 #include "../xbt/mmalloc/mmprivate.h"
15 #include "mc_private.h"
16 #include "xbt/automaton.h"
19 XBT_LOG_NEW_CATEGORY(mc, "All MC categories");
20 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_global, mc,
21 "Logging specific to MC (global)");
23 /* Configuration support */
24 e_mc_reduce_t mc_reduce_kind=e_mc_reduce_unset;
27 extern int _surf_init_status;
28 void _mc_cfg_cb_reduce(const char *name, int pos) {
29 if (_surf_init_status && !_surf_do_model_check) {
30 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.");
32 char *val= xbt_cfg_get_string(_surf_cfg_set, name);
33 if (!strcasecmp(val,"none")) {
34 mc_reduce_kind = e_mc_reduce_none;
35 } else if (!strcasecmp(val,"dpor")) {
36 mc_reduce_kind = e_mc_reduce_dpor;
38 xbt_die("configuration option %s can only take 'none' or 'dpor' as a value",name);
40 xbt_cfg_set_int(_surf_cfg_set,"model-check",1);
43 void _mc_cfg_cb_checkpoint(const char *name, int pos) {
44 if (_surf_init_status && !_surf_do_model_check) {
45 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.");
47 _surf_mc_checkpoint = xbt_cfg_get_int(_surf_cfg_set, name);
48 xbt_cfg_set_int(_surf_cfg_set,"model-check",1);
50 void _mc_cfg_cb_property(const char *name, int pos) {
51 if (_surf_init_status && !_surf_do_model_check) {
52 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.");
54 _surf_mc_property_file= xbt_cfg_get_string(_surf_cfg_set, name);
55 xbt_cfg_set_int(_surf_cfg_set,"model-check",1);
59 /* MC global data structures */
61 mc_state_t mc_current_state = NULL;
62 char mc_replay_mode = FALSE;
63 double *mc_time = NULL;
64 mc_snapshot_t initial_snapshot = NULL;
69 xbt_fifo_t mc_stack_safety = NULL;
70 mc_stats_t mc_stats = NULL;
74 mc_stats_pair_t mc_stats_pair = NULL;
75 xbt_fifo_t mc_stack_liveness = NULL;
76 mc_snapshot_t initial_snapshot_liveness = NULL;
80 xbt_dict_t mc_local_variables = NULL;
82 /* Ignore mechanism */
83 extern xbt_dynar_t mc_comparison_ignore;
84 extern xbt_dynar_t stacks_areas;
86 xbt_automaton_t _mc_property_automaton = NULL;
88 /* Static functions */
90 static void MC_assert_pair(int prop);
91 static dw_location_t get_location(xbt_dict_t location_list, char *expr);
92 static dw_frame_t get_frame_by_offset(xbt_dict_t all_variables, unsigned long int offset);
94 void MC_do_the_modelcheck_for_real() {
95 if (!_surf_mc_property_file || _surf_mc_property_file[0]=='\0') {
96 if (mc_reduce_kind==e_mc_reduce_unset)
97 mc_reduce_kind=e_mc_reduce_dpor;
99 XBT_INFO("Check a safety property");
104 if (mc_reduce_kind==e_mc_reduce_unset)
105 mc_reduce_kind=e_mc_reduce_none;
107 XBT_INFO("Check the liveness property %s",_surf_mc_property_file);
108 MC_automaton_load(_surf_mc_property_file);
109 MC_modelcheck_liveness();
114 * \brief Initialize the model-checker data structures
116 void MC_init_safety(void)
119 raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
121 /* Check if MC is already initialized */
122 if (initial_snapshot)
125 mc_time = xbt_new0(double, simix_process_maxpid);
127 /* Initialize the data structures that must be persistent across every
128 iteration of the model-checker (in RAW memory) */
132 /* Initialize statistics */
133 mc_stats = xbt_new0(s_mc_stats_t, 1);
134 mc_stats->state_size = 1;
136 /* Create exploration stack */
137 mc_stack_safety = xbt_fifo_new();
144 /* Save the initial state */
145 initial_snapshot = xbt_new0(s_mc_snapshot_t, 1);
146 MC_take_snapshot(initial_snapshot);
154 void MC_compare(void){
159 void MC_modelcheck(void)
166 void MC_init_liveness(){
168 raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
170 mc_time = xbt_new0(double, simix_process_maxpid);
172 /* mc_time refers to clock for each process -> ignore it for heap comparison */
174 for(i = 0; i<simix_process_maxpid; i++)
175 MC_ignore(&(mc_time[i]), sizeof(double));
179 /* Initialize the data structures that must be persistent across every
180 iteration of the model-checker (in RAW memory) */
184 char *ls_path = get_libsimgrid_path();
186 mc_local_variables = xbt_dict_new_homogeneous(NULL);
188 /* Get local variables in binary for state equality detection */
189 xbt_dict_t binary_location_list = MC_get_location_list(xbt_binary_name);
190 MC_get_local_variables(xbt_binary_name, binary_location_list, &mc_local_variables);
192 /* Get local variables in libsimgrid for state equality detection */
193 xbt_dict_t libsimgrid_location_list = MC_get_location_list(ls_path);
194 MC_get_local_variables(ls_path, libsimgrid_location_list, &mc_local_variables);
198 MC_init_memory_map_info();
200 /* Get .plt section (start and end addresses) for data libsimgrid and data program comparison */
201 get_libsimgrid_plt_section();
202 get_binary_plt_section();
209 void MC_modelcheck_liveness(){
211 raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
217 /* Initialize statistics */
218 mc_stats_pair = xbt_new0(s_mc_stats_pair_t, 1);
220 XBT_DEBUG("Creating stack");
222 /* Create exploration stack */
223 mc_stack_liveness = xbt_fifo_new();
230 MC_print_statistics_pairs(mc_stats_pair);
238 MC_print_statistics(mc_stats);
244 int MC_random(int min, int max)
246 /*FIXME: return mc_current_state->executed_transition->random.value;*/
251 * \brief Schedules all the process that are ready to run
253 void MC_wait_for_requests(void)
255 smx_process_t process;
259 while (!xbt_dynar_is_empty(simix_global->process_to_run)) {
260 SIMIX_process_runall();
261 xbt_dynar_foreach(simix_global->process_that_ran, iter, process) {
262 req = &process->simcall;
263 if (req->call != SIMCALL_NONE && !MC_request_is_visible(req))
264 SIMIX_simcall_pre(req, 0);
269 int MC_deadlock_check()
271 int deadlock = FALSE;
272 smx_process_t process;
273 if(xbt_swag_size(simix_global->process_list)){
275 xbt_swag_foreach(process, simix_global->process_list){
276 if(process->simcall.call != SIMCALL_NONE
277 && MC_request_is_enabled(&process->simcall)){
287 * \brief Re-executes from the state at position start all the transitions indicated by
288 * a given model-checker stack.
289 * \param stack The stack with the transitions to execute.
290 * \param start Start index to begin the re-execution.
292 void MC_replay(xbt_fifo_t stack, int start)
294 raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
298 smx_simcall_t req = NULL, saved_req = NULL;
299 xbt_fifo_item_t item, start_item;
302 XBT_DEBUG("**** Begin Replay ****");
305 /* Restore the initial state */
306 MC_restore_snapshot(initial_snapshot);
307 /* At the moment of taking the snapshot the raw heap was set, so restoring
308 * it will set it back again, we have to unset it to continue */
312 start_item = xbt_fifo_get_last_item(stack);
315 start_item = xbt_fifo_get_prev_item(start_item);
320 /* Traverse the stack from the state at position start and re-execute the transitions */
321 for (item = start_item;
322 item != xbt_fifo_get_first_item(stack);
323 item = xbt_fifo_get_prev_item(item)) {
325 state = (mc_state_t) xbt_fifo_get_item_content(item);
326 saved_req = MC_state_get_executed_request(state, &value);
329 /* because we got a copy of the executed request, we have to fetch the
330 real one, pointed by the request field of the issuer process */
331 req = &saved_req->issuer->simcall;
333 /* Debug information */
334 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
335 req_str = MC_request_to_string(req, value);
336 XBT_DEBUG("Replay: %s (%p)", req_str, state);
341 SIMIX_simcall_pre(req, value);
342 MC_wait_for_requests();
344 /* Update statistics */
345 mc_stats->visited_states++;
346 mc_stats->executed_transitions++;
348 XBT_DEBUG("**** End Replay ****");
358 void MC_replay_liveness(xbt_fifo_t stack, int all_stack)
361 raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
365 smx_simcall_t req = NULL, saved_req = NULL;
366 xbt_fifo_item_t item;
368 mc_pair_stateless_t pair;
371 XBT_DEBUG("**** Begin Replay ****");
373 /* Restore the initial state */
374 MC_restore_snapshot(initial_snapshot_liveness);
375 /* At the moment of taking the snapshot the raw heap was set, so restoring
376 * it will set it back again, we have to unset it to continue */
381 item = xbt_fifo_get_last_item(stack);
383 while(depth <= xbt_fifo_size(stack)){
385 pair = (mc_pair_stateless_t) xbt_fifo_get_item_content(item);
386 state = (mc_state_t) pair->graph_state;
388 if(pair->requests > 0){
390 saved_req = MC_state_get_executed_request(state, &value);
391 //XBT_DEBUG("SavedReq->call %u", saved_req->call);
393 if(saved_req != NULL){
394 /* because we got a copy of the executed request, we have to fetch the
395 real one, pointed by the request field of the issuer process */
396 req = &saved_req->issuer->simcall;
397 //XBT_DEBUG("Req->call %u", req->call);
399 /* Debug information */
400 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
401 req_str = MC_request_to_string(req, value);
402 XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
408 SIMIX_simcall_pre(req, value);
409 MC_wait_for_requests();
414 /* Update statistics */
415 mc_stats_pair->visited_pairs++;
417 item = xbt_fifo_get_prev_item(item);
422 /* Traverse the stack from the initial state and re-execute the transitions */
423 for (item = xbt_fifo_get_last_item(stack);
424 item != xbt_fifo_get_first_item(stack);
425 item = xbt_fifo_get_prev_item(item)) {
427 pair = (mc_pair_stateless_t) xbt_fifo_get_item_content(item);
428 state = (mc_state_t) pair->graph_state;
430 if(pair->requests > 0){
432 saved_req = MC_state_get_executed_request(state, &value);
433 //XBT_DEBUG("SavedReq->call %u", saved_req->call);
435 if(saved_req != NULL){
436 /* because we got a copy of the executed request, we have to fetch the
437 real one, pointed by the request field of the issuer process */
438 req = &saved_req->issuer->simcall;
439 //XBT_DEBUG("Req->call %u", req->call);
441 /* Debug information */
442 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
443 req_str = MC_request_to_string(req, value);
444 XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
450 SIMIX_simcall_pre(req, value);
451 MC_wait_for_requests();
456 /* Update statistics */
457 mc_stats_pair->visited_pairs++;
461 XBT_DEBUG("**** End Replay ****");
471 * \brief Dumps the contents of a model-checker's stack and shows the actual
473 * \param stack The stack to dump
475 void MC_dump_stack_safety(xbt_fifo_t stack)
478 raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
480 MC_show_stack_safety(stack);
482 if(!_surf_mc_checkpoint){
487 while ((state = (mc_state_t) xbt_fifo_pop(stack)) != NULL)
488 MC_state_delete(state);
501 void MC_show_stack_safety(xbt_fifo_t stack)
505 xbt_fifo_item_t item;
507 char *req_str = NULL;
509 for (item = xbt_fifo_get_last_item(stack);
510 (item ? (state = (mc_state_t) (xbt_fifo_get_item_content(item)))
511 : (NULL)); item = xbt_fifo_get_prev_item(item)) {
512 req = MC_state_get_executed_request(state, &value);
514 req_str = MC_request_to_string(req, value);
515 XBT_INFO("%s", req_str);
521 void MC_show_deadlock(smx_simcall_t req)
523 /*char *req_str = NULL;*/
524 XBT_INFO("**************************");
525 XBT_INFO("*** DEAD-LOCK DETECTED ***");
526 XBT_INFO("**************************");
527 XBT_INFO("Locked request:");
528 /*req_str = MC_request_to_string(req);
529 XBT_INFO("%s", req_str);
531 XBT_INFO("Counter-example execution trace:");
532 MC_dump_stack_safety(mc_stack_safety);
536 void MC_show_stack_liveness(xbt_fifo_t stack){
538 mc_pair_stateless_t pair;
539 xbt_fifo_item_t item;
541 char *req_str = NULL;
543 for (item = xbt_fifo_get_last_item(stack);
544 (item ? (pair = (mc_pair_stateless_t) (xbt_fifo_get_item_content(item)))
545 : (NULL)); item = xbt_fifo_get_prev_item(item)) {
546 req = MC_state_get_executed_request(pair->graph_state, &value);
548 if(pair->requests>0){
549 req_str = MC_request_to_string(req, value);
550 XBT_INFO("%s", req_str);
553 XBT_INFO("End of system requests but evolution in Büchi automaton");
559 void MC_dump_stack_liveness(xbt_fifo_t stack){
561 raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
563 mc_pair_stateless_t pair;
566 while ((pair = (mc_pair_stateless_t) xbt_fifo_pop(stack)) != NULL)
567 pair_stateless_free(pair);
576 void MC_print_statistics(mc_stats_t stats)
578 //XBT_INFO("State space size ~= %lu", stats->state_size);
579 XBT_INFO("Expanded states = %lu", stats->expanded_states);
580 XBT_INFO("Visited states = %lu", stats->visited_states);
581 XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
582 XBT_INFO("Expanded / Visited = %lf",
583 (double) stats->visited_states / stats->expanded_states);
584 /*XBT_INFO("Exploration coverage = %lf",
585 (double)stats->expanded_states / stats->state_size); */
588 void MC_print_statistics_pairs(mc_stats_pair_t stats)
590 XBT_INFO("Expanded pairs = %lu", stats->expanded_pairs);
591 XBT_INFO("Visited pairs = %lu", stats->visited_pairs);
592 //XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
593 XBT_INFO("Expanded / Visited = %lf",
594 (double) stats->visited_pairs / stats->expanded_pairs);
595 /*XBT_INFO("Exploration coverage = %lf",
596 (double)stats->expanded_states / stats->state_size); */
599 void MC_assert(int prop)
601 if (MC_is_active() && !prop){
602 XBT_INFO("**************************");
603 XBT_INFO("*** PROPERTY NOT VALID ***");
604 XBT_INFO("**************************");
605 XBT_INFO("Counter-example execution trace:");
606 MC_dump_stack_safety(mc_stack_safety);
607 MC_print_statistics(mc_stats);
612 static void MC_assert_pair(int prop){
613 if (MC_is_active() && !prop) {
614 XBT_INFO("**************************");
615 XBT_INFO("*** PROPERTY NOT VALID ***");
616 XBT_INFO("**************************");
617 //XBT_INFO("Counter-example execution trace:");
618 MC_show_stack_liveness(mc_stack_liveness);
619 //MC_dump_snapshot_stack(mc_snapshot_stack);
620 MC_print_statistics_pairs(mc_stats_pair);
625 void MC_process_clock_add(smx_process_t process, double amount)
627 mc_time[process->pid] += amount;
630 double MC_process_clock_get(smx_process_t process)
634 return mc_time[process->pid];
642 void MC_automaton_load(const char *file){
644 raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
648 if (_mc_property_automaton == NULL)
649 _mc_property_automaton = xbt_automaton_new();
651 xbt_automaton_load(_mc_property_automaton,file);
660 void MC_automaton_new_propositional_symbol(const char* id, void* fct) {
662 raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
666 if (_mc_property_automaton == NULL)
667 _mc_property_automaton = xbt_automaton_new();
669 xbt_new_propositional_symbol(_mc_property_automaton,id,fct);
678 /************ MC_ignore ***********/
680 void MC_ignore(void *address, size_t size){
682 raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
686 if(mc_comparison_ignore == NULL)
687 mc_comparison_ignore = xbt_dynar_new(sizeof(mc_ignore_region_t), NULL);
689 mc_ignore_region_t region = NULL;
690 region = xbt_new0(s_mc_ignore_region_t, 1);
691 region->address = address;
694 if((address >= std_heap) && (address <= (void*)((char *)std_heap + STD_HEAP_SIZE))){
696 region->block = ((char*)address - (char*)((xbt_mheap_t)std_heap)->heapbase) / BLOCKSIZE + 1;
698 if(((xbt_mheap_t)std_heap)->heapinfo[region->block].type == 0){
699 region->fragment = -1;
701 region->fragment = ((uintptr_t) (ADDR2UINT (address) % (BLOCKSIZE))) >> ((xbt_mheap_t)std_heap)->heapinfo[region->block].type;
706 unsigned int cursor = 0;
707 mc_ignore_region_t current_region;
708 xbt_dynar_foreach(mc_comparison_ignore, cursor, current_region){
709 if(current_region->address > address)
713 xbt_dynar_insert_at(mc_comparison_ignore, cursor, ®ion);
721 void MC_new_stack_area(void *stack, char *name, void* context){
723 raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
727 if(stacks_areas == NULL)
728 stacks_areas = xbt_dynar_new(sizeof(stack_region_t), NULL);
730 stack_region_t region = NULL;
731 region = xbt_new0(s_stack_region_t, 1);
732 region->address = stack;
733 region->process_name = strdup(name);
734 region->context = context;
735 xbt_dynar_push(stacks_areas, ®ion);
743 /************ DWARF ***********/
745 xbt_dict_t MC_get_location_list(const char *elf_file){
747 char *command = bprintf("objdump -Wo %s", elf_file);
749 FILE *fp = popen(command, "r");
752 perror("popen for objdump failed");
754 int debug = 0; /*Detect if the program has been compiled with -g */
756 xbt_dict_t location_list = xbt_dict_new_homogeneous(NULL);
757 char *line = NULL, *loc_expr = NULL;
761 xbt_dynar_t split = NULL;
763 while ((read = getline(&line, &n, fp)) != -1) {
765 /* Wipeout the new line character */
766 line[read - 1] = '\0';
768 xbt_str_trim(line, NULL);
773 if(strlen(line) == 0)
778 if(strncmp(line, elf_file, strlen(elf_file)) == 0)
781 if(strncmp(line, "Contents", 8) == 0)
784 if(strncmp(line, "Offset", 6) == 0){
791 XBT_INFO("Your program must be compiled with -g");
795 xbt_dynar_t loclist = xbt_dynar_new(sizeof(dw_location_entry_t), NULL);
797 xbt_str_strip_spaces(line);
798 split = xbt_str_split(line, " ");
800 while(read != -1 && strcmp("<End", (char *)xbt_dynar_get_as(split, 1, char *)) != 0){
802 dw_location_entry_t new_entry = xbt_new0(s_dw_location_entry_t, 1);
803 new_entry->lowpc = strtoul((char *)xbt_dynar_get_as(split, 1, char *), NULL, 16);
804 new_entry->highpc = strtoul((char *)xbt_dynar_get_as(split, 2, char *), NULL, 16);
807 while(cursor_remove < 3){
808 xbt_dynar_remove_at(split, 0, NULL);
812 loc_expr = xbt_str_join(split, " ");
813 xbt_str_ltrim(loc_expr, "(");
814 xbt_str_rtrim(loc_expr, ")");
815 new_entry->location = get_location(NULL, loc_expr);
817 xbt_dynar_push(loclist, &new_entry);
819 xbt_dynar_free(&split);
822 read = getline(&line, &n, fp);
824 line[read - 1] = '\0';
825 xbt_str_strip_spaces(line);
826 split = xbt_str_split(line, " ");
832 char *key = bprintf("%d", (int)strtoul((char *)xbt_dynar_get_as(split, 0, char *), NULL, 16));
833 xbt_dict_set(location_list, key, loclist, NULL);
835 xbt_dynar_free(&split);
843 return location_list;
846 char *get_libsimgrid_path(){
848 char *command = bprintf("ldd %s", xbt_binary_name);
850 FILE *fp = popen(command, "r");
852 perror("popen for ldd failed");
859 while((read = getline(&line, &n, fp)) != -1){
864 /* Wipeout the new line character */
865 line[read - 1] = '\0';
867 xbt_str_strip_spaces(line);
868 xbt_str_ltrim(line, NULL);
869 split = xbt_str_split(line, " ");
871 if(strncmp((char *)xbt_dynar_get_as(split, 0, char *), "libsimgrid.so", 13) == 0){
875 return ((char *)xbt_dynar_get_as(split, 2, char *));
878 xbt_dynar_free(&split);
890 static dw_frame_t get_frame_by_offset(xbt_dict_t all_variables, unsigned long int offset){
892 xbt_dict_cursor_t cursor = NULL;
896 xbt_dict_foreach(all_variables, cursor, name, res) {
897 if(offset >= res->start && offset < res->end)
905 void MC_get_local_variables(const char *elf_file, xbt_dict_t location_list, xbt_dict_t *all_variables){
907 char *command = bprintf("objdump -Wi %s", elf_file);
909 FILE *fp = popen(command, "r");
912 perror("popen for objdump failed");
914 char *line = NULL, *origin, *abstract_origin, *current_frame = NULL;
917 int valid_variable = 1;
918 char *node_type = NULL, *location_type = NULL, *variable_name = NULL, *loc_expr = NULL;
919 xbt_dynar_t split = NULL, split2 = NULL;
921 xbt_dict_t variables_origin = xbt_dict_new_homogeneous(NULL);
922 xbt_dict_t subprograms_origin = xbt_dict_new_homogeneous(NULL);
923 char *subprogram_name = NULL, *subprogram_start = NULL, *subprogram_end = NULL;
924 int new_frame = 0, new_variable = 0;
925 dw_frame_t variable_frame, subroutine_frame = NULL;
927 read = getline(&line, &n, fp);
932 read = getline(&line, &n, fp);
936 /* Wipeout the new line character */
937 line[read - 1] = '\0';
939 if(strlen(line) == 0){
940 read = getline(&line, &n, fp);
944 xbt_str_ltrim(line, NULL);
945 xbt_str_strip_spaces(line);
948 read = getline(&line, &n, fp);
952 xbt_dynar_free(&split);
953 split = xbt_str_split(line, " ");
956 node_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
958 if(strcmp(node_type, "(DW_TAG_subprogram)") == 0){ /* New frame */
960 dw_frame_t frame = NULL;
962 strtok(xbt_dynar_get_as(split, 0, char *), "<");
963 subprogram_start = strdup(strtok(NULL, "<"));
964 xbt_str_rtrim(subprogram_start, ">:");
966 read = getline(&line, &n, fp);
971 read = getline(&line, &n, fp);
975 /* Wipeout the new line character */
976 line[read - 1] = '\0';
978 if(strlen(line) == 0){
979 read = getline(&line, &n, fp);
983 xbt_dynar_free(&split);
984 xbt_str_rtrim(line, NULL);
985 xbt_str_strip_spaces(line);
986 split = xbt_str_split(line, " ");
988 node_type = xbt_dynar_get_as(split, 1, char *);
990 if(strncmp(node_type, "DW_AT_", 6) != 0)
993 if(strcmp(node_type, "DW_AT_sibling") == 0){
995 subprogram_end = strdup(xbt_dynar_get_as(split, 3, char*));
996 xbt_str_ltrim(subprogram_end, "<0x");
997 xbt_str_rtrim(subprogram_end, ">");
999 }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){ /* Frame already in dict */
1002 abstract_origin = strdup(xbt_dynar_get_as(split, 2, char*));
1003 xbt_str_ltrim(abstract_origin, "<0x");
1004 xbt_str_rtrim(abstract_origin, ">");
1005 subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, abstract_origin);
1006 frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
1008 }else if(strcmp(node_type, "DW_AT_name") == 0){
1011 free(current_frame);
1012 frame = xbt_new0(s_dw_frame_t, 1);
1013 frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1014 frame->variables = xbt_dict_new_homogeneous(NULL);
1015 frame->frame_base = xbt_new0(s_dw_location_t, 1);
1016 current_frame = strdup(frame->name);
1018 xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
1020 }else if(strcmp(node_type, "DW_AT_frame_base") == 0){
1022 location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1024 if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
1026 frame->frame_base = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
1030 xbt_str_strip_spaces(line);
1031 split2 = xbt_str_split(line, "(");
1032 xbt_dynar_remove_at(split2, 0, NULL);
1033 loc_expr = xbt_str_join(split2, " ");
1034 xbt_str_rtrim(loc_expr, ")");
1035 frame->frame_base = get_location(NULL, loc_expr);
1036 xbt_dynar_free(&split2);
1040 }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
1043 frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1045 }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
1048 frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1050 }else if(strcmp(node_type, "DW_AT_MIPS_linkage_name:") == 0){
1053 free(current_frame);
1054 frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1055 current_frame = strdup(frame->name);
1056 xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
1060 read = getline(&line, &n, fp);
1065 frame->start = strtoul(subprogram_start, NULL, 16);
1066 if(subprogram_end != NULL)
1067 frame->end = strtoul(subprogram_end, NULL, 16);
1068 xbt_dict_set(*all_variables, frame->name, frame, NULL);
1071 free(subprogram_start);
1072 if(subprogram_end != NULL){
1073 free(subprogram_end);
1074 subprogram_end = NULL;
1078 }else if(strcmp(node_type, "(DW_TAG_variable)") == 0){ /* New variable */
1080 dw_local_variable_t var = NULL;
1082 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1083 origin = strdup(strtok(NULL, "<"));
1084 xbt_str_rtrim(origin, ">:");
1086 read = getline(&line, &n, fp);
1091 read = getline(&line, &n, fp);
1095 /* Wipeout the new line character */
1096 line[read - 1] = '\0';
1098 if(strlen(line) == 0){
1099 read = getline(&line, &n, fp);
1103 xbt_dynar_free(&split);
1104 xbt_str_rtrim(line, NULL);
1105 xbt_str_strip_spaces(line);
1106 split = xbt_str_split(line, " ");
1108 node_type = xbt_dynar_get_as(split, 1, char *);
1110 if(strncmp(node_type, "DW_AT_", 6) != 0)
1113 if(strcmp(node_type, "DW_AT_name") == 0){
1116 var = xbt_new0(s_dw_local_variable_t, 1);
1117 var->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1119 xbt_dict_set(variables_origin, origin, var->name, NULL);
1121 }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
1124 abstract_origin = xbt_dynar_get_as(split, 2, char *);
1125 xbt_str_ltrim(abstract_origin, "<0x");
1126 xbt_str_rtrim(abstract_origin, ">");
1128 variable_name = (char *)xbt_dict_get_or_null(variables_origin, abstract_origin);
1129 variable_frame = get_frame_by_offset(*all_variables, strtoul(abstract_origin, NULL, 16));
1130 var = xbt_dict_get_or_null(variable_frame->variables, variable_name);
1132 }else if(strcmp(node_type, "DW_AT_location") == 0){
1134 if(valid_variable == 1 && var != NULL){
1136 var->location = xbt_new0(s_dw_location_t, 1);
1138 location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1140 if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
1142 var->location = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
1146 xbt_str_strip_spaces(line);
1147 split2 = xbt_str_split(line, "(");
1148 xbt_dynar_remove_at(split2, 0, NULL);
1149 loc_expr = xbt_str_join(split2, " ");
1150 xbt_str_rtrim(loc_expr, ")");
1151 var->location = get_location(NULL, loc_expr);
1152 xbt_dynar_free(&split2);
1158 }else if(strcmp(node_type, "DW_AT_external") == 0){
1164 read = getline(&line, &n, fp);
1168 if(new_variable == 1 && valid_variable == 1){
1170 variable_frame = xbt_dict_get_or_null(*all_variables, current_frame);
1171 xbt_dict_set(variable_frame->variables, var->name, var, NULL);
1177 }else if(strcmp(node_type, "(DW_TAG_inlined_subroutine)") == 0){
1179 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1180 origin = strdup(strtok(NULL, "<"));
1181 xbt_str_rtrim(origin, ">:");
1183 read = getline(&line, &n, fp);
1187 /* Wipeout the new line character */
1188 line[read - 1] = '\0';
1191 read = getline(&line, &n, fp);
1195 if(strlen(line) == 0){
1196 read = getline(&line, &n, fp);
1200 xbt_dynar_free(&split);
1201 xbt_str_rtrim(line, NULL);
1202 xbt_str_strip_spaces(line);
1203 split = xbt_str_split(line, " ");
1205 if(strncmp(xbt_dynar_get_as(split, 1, char *), "DW_AT_", 6) != 0)
1208 node_type = xbt_dynar_get_as(split, 1, char *);
1210 if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
1212 origin = xbt_dynar_get_as(split, 2, char *);
1213 xbt_str_ltrim(origin, "<0x");
1214 xbt_str_rtrim(origin, ">");
1216 subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, origin);
1217 subroutine_frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
1219 }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
1221 subroutine_frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1223 }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
1225 subroutine_frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1228 read = getline(&line, &n, fp);
1234 read = getline(&line, &n, fp);
1240 xbt_dynar_free(&split);
1247 static dw_location_t get_location(xbt_dict_t location_list, char *expr){
1249 dw_location_t loc = xbt_new0(s_dw_location_t, 1);
1251 if(location_list != NULL){
1253 char *key = bprintf("%d", (int)strtoul(expr, NULL, 16));
1254 loc->type = e_dw_loclist;
1255 loc->location.loclist = (xbt_dynar_t)xbt_dict_get_or_null(location_list, key);
1257 XBT_INFO("Key not found in loclist");
1263 char *tok = NULL, *tok2 = NULL;
1265 xbt_dynar_t tokens1 = xbt_str_split(expr, ";");
1266 xbt_dynar_t tokens2;
1268 loc->type = e_dw_compose;
1269 loc->location.compose = xbt_dynar_new(sizeof(dw_location_t), NULL);
1271 while(cursor < xbt_dynar_length(tokens1)){
1273 tok = xbt_dynar_get_as(tokens1, cursor, char*);
1274 tokens2 = xbt_str_split(tok, " ");
1275 tok2 = xbt_dynar_get_as(tokens2, 0, char*);
1277 if(strncmp(tok2, "DW_OP_reg", 9) == 0){
1278 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1279 new_element->type = e_dw_register;
1280 new_element->location.reg = atoi(strtok(tok2, "DW_OP_reg"));
1281 xbt_dynar_push(loc->location.compose, &new_element);
1282 }else if(strcmp(tok2, "DW_OP_fbreg:") == 0){
1283 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1284 new_element->type = e_dw_fbregister_op;
1285 new_element->location.fbreg_op = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1286 xbt_dynar_push(loc->location.compose, &new_element);
1287 }else if(strncmp(tok2, "DW_OP_breg", 10) == 0){
1288 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1289 new_element->type = e_dw_bregister_op;
1290 new_element->location.breg_op.reg = atoi(strtok(tok2, "DW_OP_breg"));
1291 new_element->location.breg_op.offset = atoi(xbt_dynar_get_as(tokens2, 2, char*));
1292 xbt_dynar_push(loc->location.compose, &new_element);
1293 }else if(strncmp(tok2, "DW_OP_lit", 9) == 0){
1294 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1295 new_element->type = e_dw_lit;
1296 new_element->location.lit = atoi(strtok(tok2, "DW_OP_lit"));
1297 xbt_dynar_push(loc->location.compose, &new_element);
1298 }else if(strcmp(tok2, "DW_OP_piece:") == 0){
1299 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1300 new_element->type = e_dw_piece;
1301 new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1302 /*if(strlen(xbt_dynar_get_as(tokens2, 1, char*)) > 1)
1303 new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1305 new_element->location.piece = xbt_dynar_get_as(tokens2, 1, char*)[0] - '0';*/
1306 xbt_dynar_push(loc->location.compose, &new_element);
1307 }else if(strcmp(tok2, "DW_OP_plus_uconst:") == 0){
1308 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1309 new_element->type = e_dw_plus_uconst;
1310 new_element->location.plus_uconst = atoi(xbt_dynar_get_as(tokens2, 1, char *));
1311 xbt_dynar_push(loc->location.compose, &new_element);
1312 }else if(strcmp(tok, "DW_OP_abs") == 0 ||
1313 strcmp(tok, "DW_OP_and") == 0 ||
1314 strcmp(tok, "DW_OP_div") == 0 ||
1315 strcmp(tok, "DW_OP_minus") == 0 ||
1316 strcmp(tok, "DW_OP_mod") == 0 ||
1317 strcmp(tok, "DW_OP_mul") == 0 ||
1318 strcmp(tok, "DW_OP_neg") == 0 ||
1319 strcmp(tok, "DW_OP_not") == 0 ||
1320 strcmp(tok, "DW_OP_or") == 0 ||
1321 strcmp(tok, "DW_OP_plus") == 0){
1322 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1323 new_element->type = e_dw_arithmetic;
1324 new_element->location.arithmetic = strdup(strtok(tok2, "DW_OP_"));
1325 xbt_dynar_push(loc->location.compose, &new_element);
1326 }else if(strcmp(tok, "DW_OP_stack_value") == 0){
1327 }else if(strcmp(tok2, "DW_OP_deref_size:") == 0){
1328 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1329 new_element->type = e_dw_deref;
1330 new_element->location.deref_size = (unsigned int short) atoi(xbt_dynar_get_as(tokens2, 1, char*));
1331 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1332 new_element->location.deref_size = atoi(xbt_dynar_get_as(tokens, cursor, char*));
1334 new_element->location.deref_size = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
1335 xbt_dynar_push(loc->location.compose, &new_element);
1336 }else if(strcmp(tok, "DW_OP_deref") == 0){
1337 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1338 new_element->type = e_dw_deref;
1339 new_element->location.deref_size = sizeof(void *);
1340 xbt_dynar_push(loc->location.compose, &new_element);
1341 }else if(strcmp(tok2, "DW_OP_constu:") == 0){
1342 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1343 new_element->type = e_dw_uconstant;
1344 new_element->location.uconstant.bytes = 1;
1345 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1346 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1347 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens, cursor, char*)));
1349 new_element->location.uconstant.value = (unsigned long int)(xbt_dynar_get_as(tokens, cursor, char*)[0] - '0');*/
1350 xbt_dynar_push(loc->location.compose, &new_element);
1351 }else if(strcmp(tok2, "DW_OP_consts:") == 0){
1352 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1353 new_element->type = e_dw_sconstant;
1354 new_element->location.sconstant.bytes = 1;
1355 new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1356 xbt_dynar_push(loc->location.compose, &new_element);
1357 }else if(strcmp(tok2, "DW_OP_const1u:") == 0 ||
1358 strcmp(tok2, "DW_OP_const2u:") == 0 ||
1359 strcmp(tok2, "DW_OP_const4u:") == 0 ||
1360 strcmp(tok2, "DW_OP_const8u:") == 0){
1361 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1362 new_element->type = e_dw_uconstant;
1363 new_element->location.uconstant.bytes = tok2[11] - '0';
1364 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1365 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1366 new_element->location.constant.value = atoi(xbt_dynar_get_as(tokens, cursor, char*));
1368 new_element->location.constant.value = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
1369 xbt_dynar_push(loc->location.compose, &new_element);
1370 }else if(strcmp(tok, "DW_OP_const1s") == 0 ||
1371 strcmp(tok, "DW_OP_const2s") == 0 ||
1372 strcmp(tok, "DW_OP_const4s") == 0 ||
1373 strcmp(tok, "DW_OP_const8s") == 0){
1374 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1375 new_element->type = e_dw_sconstant;
1376 new_element->location.sconstant.bytes = tok2[11] - '0';
1377 new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1378 xbt_dynar_push(loc->location.compose, &new_element);
1380 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1381 new_element->type = e_dw_unsupported;
1382 xbt_dynar_push(loc->location.compose, &new_element);
1386 xbt_dynar_free(&tokens2);
1390 xbt_dynar_free(&tokens1);
1399 void print_local_variables(xbt_dict_t list){
1401 dw_location_entry_t entry;
1402 dw_location_t location_entry;
1403 unsigned int cursor3 = 0, cursor4 = 0;
1404 xbt_dict_cursor_t cursor = 0, cursor2 = 0;
1406 char *frame_name, *variable_name;
1407 dw_frame_t current_frame;
1408 dw_local_variable_t current_variable;
1410 xbt_dict_foreach(list, cursor, frame_name, current_frame){
1411 fprintf(stderr, "Frame name : %s\n", current_frame->name);
1412 fprintf(stderr, "Location type : %d\n", current_frame->frame_base->type);
1413 xbt_dict_foreach((xbt_dict_t)current_frame->variables, cursor2, variable_name, current_variable){
1414 fprintf(stderr, "Name : %s\n", current_variable->name);
1415 if(current_variable->location == NULL)
1417 fprintf(stderr, "Location type : %d\n", current_variable->location->type);
1418 switch(current_variable->location->type){
1420 xbt_dynar_foreach(current_variable->location->location.loclist, cursor3, entry){
1421 fprintf(stderr, "Lowpc : %lx, Highpc : %lx,", entry->lowpc, entry->highpc);
1422 switch(entry->location->type){
1423 case e_dw_register :
1424 fprintf(stderr, " Location : in register %d\n", entry->location->location.reg);
1426 case e_dw_bregister_op:
1427 fprintf(stderr, " Location : Add %d to the value in register %d\n", entry->location->location.breg_op.offset, entry->location->location.breg_op.reg);
1430 fprintf(stderr, "Value already kwnown : %d\n", entry->location->location.lit);
1432 case e_dw_fbregister_op:
1433 fprintf(stderr, " Location : %d bytes from logical frame pointer\n", entry->location->location.fbreg_op);
1436 fprintf(stderr, " Location :\n");
1437 xbt_dynar_foreach(entry->location->location.compose, cursor4, location_entry){
1438 switch(location_entry->type){
1439 case e_dw_register :
1440 fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
1442 case e_dw_bregister_op:
1443 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);
1446 fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
1448 case e_dw_fbregister_op:
1449 fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
1452 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);
1454 case e_dw_arithmetic :
1455 fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
1458 fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
1460 case e_dw_uconstant :
1461 fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
1463 case e_dw_sconstant :
1464 fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
1467 fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
1473 fprintf(stderr, "Location type not supported\n");
1480 fprintf(stderr, "Location :\n");
1481 xbt_dynar_foreach(current_variable->location->location.compose, cursor4, location_entry){
1482 switch(location_entry->type){
1483 case e_dw_register :
1484 fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
1486 case e_dw_bregister_op:
1487 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);
1490 fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
1492 case e_dw_fbregister_op:
1493 fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
1496 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);
1498 case e_dw_arithmetic :
1499 fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
1502 fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
1504 case e_dw_uconstant :
1505 fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
1507 case e_dw_sconstant :
1508 fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
1511 fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
1517 fprintf(stderr, "Location type not supported\n");