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);
156 void MC_compare(void){
161 void MC_modelcheck(void)
168 void MC_init_liveness(){
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();
206 void MC_modelcheck_liveness(){
208 raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
214 /* Initialize statistics */
215 mc_stats_pair = xbt_new0(s_mc_stats_pair_t, 1);
217 XBT_DEBUG("Creating stack");
219 /* Create exploration stack */
220 mc_stack_liveness = xbt_fifo_new();
227 MC_print_statistics_pairs(mc_stats_pair);
236 MC_print_statistics(mc_stats);
242 int MC_random(int min, int max)
244 /*FIXME: return mc_current_state->executed_transition->random.value;*/
249 * \brief Schedules all the process that are ready to run
251 void MC_wait_for_requests(void)
253 smx_process_t process;
257 while (!xbt_dynar_is_empty(simix_global->process_to_run)) {
258 SIMIX_process_runall();
259 xbt_dynar_foreach(simix_global->process_that_ran, iter, process) {
260 req = &process->simcall;
261 if (req->call != SIMCALL_NONE && !MC_request_is_visible(req))
262 SIMIX_simcall_pre(req, 0);
267 int MC_deadlock_check()
269 int deadlock = FALSE;
270 smx_process_t process;
271 if(xbt_swag_size(simix_global->process_list)){
273 xbt_swag_foreach(process, simix_global->process_list){
274 if(process->simcall.call != SIMCALL_NONE
275 && MC_request_is_enabled(&process->simcall)){
285 * \brief Re-executes from the state at position start all the transitions indicated by
286 * a given model-checker stack.
287 * \param stack The stack with the transitions to execute.
288 * \param start Start index to begin the re-execution.
290 void MC_replay(xbt_fifo_t stack, int start)
292 raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
296 smx_simcall_t req = NULL, saved_req = NULL;
297 xbt_fifo_item_t item, start_item;
300 XBT_DEBUG("**** Begin Replay ****");
303 /* Restore the initial state */
304 MC_restore_snapshot(initial_snapshot);
305 /* At the moment of taking the snapshot the raw heap was set, so restoring
306 * it will set it back again, we have to unset it to continue */
310 start_item = xbt_fifo_get_last_item(stack);
313 start_item = xbt_fifo_get_prev_item(start_item);
318 /* Traverse the stack from the state at position start and re-execute the transitions */
319 for (item = start_item;
320 item != xbt_fifo_get_first_item(stack);
321 item = xbt_fifo_get_prev_item(item)) {
323 state = (mc_state_t) xbt_fifo_get_item_content(item);
324 saved_req = MC_state_get_executed_request(state, &value);
327 /* because we got a copy of the executed request, we have to fetch the
328 real one, pointed by the request field of the issuer process */
329 req = &saved_req->issuer->simcall;
331 /* Debug information */
332 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
333 req_str = MC_request_to_string(req, value);
334 XBT_DEBUG("Replay: %s (%p)", req_str, state);
339 SIMIX_simcall_pre(req, value);
340 MC_wait_for_requests();
342 /* Update statistics */
343 mc_stats->visited_states++;
344 mc_stats->executed_transitions++;
346 XBT_DEBUG("**** End Replay ****");
356 void MC_replay_liveness(xbt_fifo_t stack, int all_stack)
359 raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
363 smx_simcall_t req = NULL, saved_req = NULL;
364 xbt_fifo_item_t item;
366 mc_pair_stateless_t pair;
369 XBT_DEBUG("**** Begin Replay ****");
371 /* Restore the initial state */
372 MC_restore_snapshot(initial_snapshot_liveness);
373 /* At the moment of taking the snapshot the raw heap was set, so restoring
374 * it will set it back again, we have to unset it to continue */
379 item = xbt_fifo_get_last_item(stack);
381 while(depth <= xbt_fifo_size(stack)){
383 pair = (mc_pair_stateless_t) xbt_fifo_get_item_content(item);
384 state = (mc_state_t) pair->graph_state;
386 if(pair->requests > 0){
388 saved_req = MC_state_get_executed_request(state, &value);
389 //XBT_DEBUG("SavedReq->call %u", saved_req->call);
391 if(saved_req != NULL){
392 /* because we got a copy of the executed request, we have to fetch the
393 real one, pointed by the request field of the issuer process */
394 req = &saved_req->issuer->simcall;
395 //XBT_DEBUG("Req->call %u", req->call);
397 /* Debug information */
398 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
399 req_str = MC_request_to_string(req, value);
400 XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
406 SIMIX_simcall_pre(req, value);
407 MC_wait_for_requests();
412 /* Update statistics */
413 mc_stats_pair->visited_pairs++;
415 item = xbt_fifo_get_prev_item(item);
420 /* Traverse the stack from the initial state and re-execute the transitions */
421 for (item = xbt_fifo_get_last_item(stack);
422 item != xbt_fifo_get_first_item(stack);
423 item = xbt_fifo_get_prev_item(item)) {
425 pair = (mc_pair_stateless_t) xbt_fifo_get_item_content(item);
426 state = (mc_state_t) pair->graph_state;
428 if(pair->requests > 0){
430 saved_req = MC_state_get_executed_request(state, &value);
431 //XBT_DEBUG("SavedReq->call %u", saved_req->call);
433 if(saved_req != NULL){
434 /* because we got a copy of the executed request, we have to fetch the
435 real one, pointed by the request field of the issuer process */
436 req = &saved_req->issuer->simcall;
437 //XBT_DEBUG("Req->call %u", req->call);
439 /* Debug information */
440 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
441 req_str = MC_request_to_string(req, value);
442 XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
448 SIMIX_simcall_pre(req, value);
449 MC_wait_for_requests();
454 /* Update statistics */
455 mc_stats_pair->visited_pairs++;
459 XBT_DEBUG("**** End Replay ****");
469 * \brief Dumps the contents of a model-checker's stack and shows the actual
471 * \param stack The stack to dump
473 void MC_dump_stack_safety(xbt_fifo_t stack)
476 raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
478 MC_show_stack_safety(stack);
480 if(!_surf_mc_checkpoint){
485 while ((state = (mc_state_t) xbt_fifo_pop(stack)) != NULL)
486 MC_state_delete(state);
499 void MC_show_stack_safety(xbt_fifo_t stack)
503 xbt_fifo_item_t item;
505 char *req_str = NULL;
507 for (item = xbt_fifo_get_last_item(stack);
508 (item ? (state = (mc_state_t) (xbt_fifo_get_item_content(item)))
509 : (NULL)); item = xbt_fifo_get_prev_item(item)) {
510 req = MC_state_get_executed_request(state, &value);
512 req_str = MC_request_to_string(req, value);
513 XBT_INFO("%s", req_str);
519 void MC_show_deadlock(smx_simcall_t req)
521 /*char *req_str = NULL;*/
522 XBT_INFO("**************************");
523 XBT_INFO("*** DEAD-LOCK DETECTED ***");
524 XBT_INFO("**************************");
525 XBT_INFO("Locked request:");
526 /*req_str = MC_request_to_string(req);
527 XBT_INFO("%s", req_str);
529 XBT_INFO("Counter-example execution trace:");
530 MC_dump_stack_safety(mc_stack_safety);
534 void MC_show_stack_liveness(xbt_fifo_t stack){
536 mc_pair_stateless_t pair;
537 xbt_fifo_item_t item;
539 char *req_str = NULL;
541 for (item = xbt_fifo_get_last_item(stack);
542 (item ? (pair = (mc_pair_stateless_t) (xbt_fifo_get_item_content(item)))
543 : (NULL)); item = xbt_fifo_get_prev_item(item)) {
544 req = MC_state_get_executed_request(pair->graph_state, &value);
546 if(pair->requests>0){
547 req_str = MC_request_to_string(req, value);
548 XBT_INFO("%s", req_str);
551 XBT_INFO("End of system requests but evolution in Büchi automaton");
557 void MC_dump_stack_liveness(xbt_fifo_t stack){
559 raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
561 mc_pair_stateless_t pair;
564 while ((pair = (mc_pair_stateless_t) xbt_fifo_pop(stack)) != NULL)
565 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);
662 void MC_automaton_new_propositional_symbol(const char* id, void* fct) {
664 raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
668 if (_mc_property_automaton == NULL)
669 _mc_property_automaton = xbt_automaton_new();
671 xbt_new_propositional_symbol(_mc_property_automaton,id,fct);
682 /************ MC_ignore ***********/
684 void MC_ignore(void *address, size_t size){
688 if(mc_comparison_ignore == NULL)
689 mc_comparison_ignore = xbt_dynar_new(sizeof(mc_ignore_region_t), NULL);
691 mc_ignore_region_t region = NULL;
692 region = xbt_new0(s_mc_ignore_region_t, 1);
693 region->address = address;
696 if((address >= std_heap) && (address <= (void*)((char *)std_heap + STD_HEAP_SIZE))){
698 region->block = ((char*)address - (char*)((xbt_mheap_t)std_heap)->heapbase) / BLOCKSIZE + 1;
700 if(((xbt_mheap_t)std_heap)->heapinfo[region->block].type == 0){
701 region->fragment = -1;
703 region->fragment = ((uintptr_t) (ADDR2UINT (address) % (BLOCKSIZE))) >> ((xbt_mheap_t)std_heap)->heapinfo[region->block].type;
708 unsigned int cursor = 0;
709 mc_ignore_region_t current_region;
710 xbt_dynar_foreach(mc_comparison_ignore, cursor, current_region){
711 if(current_region->address > address)
715 xbt_dynar_insert_at(mc_comparison_ignore, cursor, ®ion);
720 void MC_new_stack_area(void *stack, char *name, void* context){
724 if(stacks_areas == NULL)
725 stacks_areas = xbt_dynar_new(sizeof(stack_region_t), NULL);
727 stack_region_t region = NULL;
728 region = xbt_new0(s_stack_region_t, 1);
729 region->address = stack;
730 region->process_name = strdup(name);
731 region->context = context;
732 xbt_dynar_push(stacks_areas, ®ion);
737 /************ DWARF ***********/
739 xbt_dict_t MC_get_location_list(const char *elf_file){
741 char *command = bprintf("objdump -Wo %s", elf_file);
743 FILE *fp = popen(command, "r");
746 perror("popen for objdump failed");
748 int debug = 0; /*Detect if the program has been compiled with -g */
750 xbt_dict_t location_list = xbt_dict_new_homogeneous(NULL);
751 char *line = NULL, *loc_expr = NULL;
755 xbt_dynar_t split = NULL;
757 while ((read = getline(&line, &n, fp)) != -1) {
759 /* Wipeout the new line character */
760 line[read - 1] = '\0';
762 xbt_str_trim(line, NULL);
767 if(strlen(line) == 0)
772 if(strncmp(line, elf_file, strlen(elf_file)) == 0)
775 if(strncmp(line, "Contents", 8) == 0)
778 if(strncmp(line, "Offset", 6) == 0){
785 XBT_INFO("Your program must be compiled with -g");
789 xbt_dynar_t loclist = xbt_dynar_new(sizeof(dw_location_entry_t), NULL);
791 xbt_str_strip_spaces(line);
792 split = xbt_str_split(line, " ");
794 while(read != -1 && strcmp("<End", (char *)xbt_dynar_get_as(split, 1, char *)) != 0){
796 dw_location_entry_t new_entry = xbt_new0(s_dw_location_entry_t, 1);
797 new_entry->lowpc = strtoul((char *)xbt_dynar_get_as(split, 1, char *), NULL, 16);
798 new_entry->highpc = strtoul((char *)xbt_dynar_get_as(split, 2, char *), NULL, 16);
801 while(cursor_remove < 3){
802 xbt_dynar_remove_at(split, 0, NULL);
806 loc_expr = xbt_str_join(split, " ");
807 xbt_str_ltrim(loc_expr, "(");
808 xbt_str_rtrim(loc_expr, ")");
809 new_entry->location = get_location(NULL, loc_expr);
811 xbt_dynar_push(loclist, &new_entry);
813 xbt_dynar_free(&split);
816 read = getline(&line, &n, fp);
818 line[read - 1] = '\0';
819 xbt_str_strip_spaces(line);
820 split = xbt_str_split(line, " ");
826 char *key = bprintf("%d", (int)strtoul((char *)xbt_dynar_get_as(split, 0, char *), NULL, 16));
827 xbt_dict_set(location_list, key, loclist, NULL);
829 xbt_dynar_free(&split);
837 return location_list;
840 char *get_libsimgrid_path(){
842 char *command = bprintf("ldd %s", xbt_binary_name);
844 FILE *fp = popen(command, "r");
846 perror("popen for ldd failed");
853 while((read = getline(&line, &n, fp)) != -1){
858 /* Wipeout the new line character */
859 line[read - 1] = '\0';
861 xbt_str_strip_spaces(line);
862 xbt_str_ltrim(line, NULL);
863 split = xbt_str_split(line, " ");
865 if(strncmp((char *)xbt_dynar_get_as(split, 0, char *), "libsimgrid.so", 13) == 0){
869 return ((char *)xbt_dynar_get_as(split, 2, char *));
872 xbt_dynar_free(&split);
884 static dw_frame_t get_frame_by_offset(xbt_dict_t all_variables, unsigned long int offset){
886 xbt_dict_cursor_t cursor = NULL;
890 xbt_dict_foreach(all_variables, cursor, name, res) {
891 if(offset >= res->start && offset < res->end)
899 void MC_get_local_variables(const char *elf_file, xbt_dict_t location_list, xbt_dict_t *all_variables){
901 char *command = bprintf("objdump -Wi %s", elf_file);
903 FILE *fp = popen(command, "r");
906 perror("popen for objdump failed");
908 char *line = NULL, *origin, *abstract_origin, *current_frame = NULL;
911 int valid_variable = 1;
912 char *node_type = NULL, *location_type = NULL, *variable_name = NULL, *loc_expr = NULL;
913 xbt_dynar_t split = NULL, split2 = NULL;
915 xbt_dict_t variables_origin = xbt_dict_new_homogeneous(NULL);
916 xbt_dict_t subprograms_origin = xbt_dict_new_homogeneous(NULL);
917 char *subprogram_name = NULL, *subprogram_start = NULL, *subprogram_end = NULL;
918 int new_frame = 0, new_variable = 0;
919 dw_frame_t variable_frame, subroutine_frame = NULL;
921 read = getline(&line, &n, fp);
926 read = getline(&line, &n, fp);
930 /* Wipeout the new line character */
931 line[read - 1] = '\0';
933 if(strlen(line) == 0){
934 read = getline(&line, &n, fp);
938 xbt_str_ltrim(line, NULL);
939 xbt_str_strip_spaces(line);
942 read = getline(&line, &n, fp);
946 xbt_dynar_free(&split);
947 split = xbt_str_split(line, " ");
950 node_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
952 if(strcmp(node_type, "(DW_TAG_subprogram)") == 0){ /* New frame */
954 dw_frame_t frame = NULL;
956 strtok(xbt_dynar_get_as(split, 0, char *), "<");
957 subprogram_start = strdup(strtok(NULL, "<"));
958 xbt_str_rtrim(subprogram_start, ">:");
960 read = getline(&line, &n, fp);
965 read = getline(&line, &n, fp);
969 /* Wipeout the new line character */
970 line[read - 1] = '\0';
972 if(strlen(line) == 0){
973 read = getline(&line, &n, fp);
977 xbt_dynar_free(&split);
978 xbt_str_rtrim(line, NULL);
979 xbt_str_strip_spaces(line);
980 split = xbt_str_split(line, " ");
982 node_type = xbt_dynar_get_as(split, 1, char *);
984 if(strncmp(node_type, "DW_AT_", 6) != 0)
987 if(strcmp(node_type, "DW_AT_sibling") == 0){
989 subprogram_end = strdup(xbt_dynar_get_as(split, 3, char*));
990 xbt_str_ltrim(subprogram_end, "<0x");
991 xbt_str_rtrim(subprogram_end, ">");
993 }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){ /* Frame already in dict */
996 abstract_origin = strdup(xbt_dynar_get_as(split, 2, char*));
997 xbt_str_ltrim(abstract_origin, "<0x");
998 xbt_str_rtrim(abstract_origin, ">");
999 subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, abstract_origin);
1000 frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
1002 }else if(strcmp(node_type, "DW_AT_name") == 0){
1005 free(current_frame);
1006 frame = xbt_new0(s_dw_frame_t, 1);
1007 frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1008 frame->variables = xbt_dict_new_homogeneous(NULL);
1009 frame->frame_base = xbt_new0(s_dw_location_t, 1);
1010 current_frame = strdup(frame->name);
1012 xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
1014 }else if(strcmp(node_type, "DW_AT_frame_base") == 0){
1016 location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1018 if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
1020 frame->frame_base = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
1024 xbt_str_strip_spaces(line);
1025 split2 = xbt_str_split(line, "(");
1026 xbt_dynar_remove_at(split2, 0, NULL);
1027 loc_expr = xbt_str_join(split2, " ");
1028 xbt_str_rtrim(loc_expr, ")");
1029 frame->frame_base = get_location(NULL, loc_expr);
1030 xbt_dynar_free(&split2);
1034 }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
1037 frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1039 }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
1042 frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1044 }else if(strcmp(node_type, "DW_AT_MIPS_linkage_name:") == 0){
1047 free(current_frame);
1048 frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1049 current_frame = strdup(frame->name);
1050 xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
1054 read = getline(&line, &n, fp);
1059 frame->start = strtoul(subprogram_start, NULL, 16);
1060 if(subprogram_end != NULL)
1061 frame->end = strtoul(subprogram_end, NULL, 16);
1062 xbt_dict_set(*all_variables, frame->name, frame, NULL);
1065 free(subprogram_start);
1066 if(subprogram_end != NULL){
1067 free(subprogram_end);
1068 subprogram_end = NULL;
1072 }else if(strcmp(node_type, "(DW_TAG_variable)") == 0){ /* New variable */
1074 dw_local_variable_t var = NULL;
1076 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1077 origin = strdup(strtok(NULL, "<"));
1078 xbt_str_rtrim(origin, ">:");
1080 read = getline(&line, &n, fp);
1085 read = getline(&line, &n, fp);
1089 /* Wipeout the new line character */
1090 line[read - 1] = '\0';
1092 if(strlen(line) == 0){
1093 read = getline(&line, &n, fp);
1097 xbt_dynar_free(&split);
1098 xbt_str_rtrim(line, NULL);
1099 xbt_str_strip_spaces(line);
1100 split = xbt_str_split(line, " ");
1102 node_type = xbt_dynar_get_as(split, 1, char *);
1104 if(strncmp(node_type, "DW_AT_", 6) != 0)
1107 if(strcmp(node_type, "DW_AT_name") == 0){
1110 var = xbt_new0(s_dw_local_variable_t, 1);
1111 var->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1113 xbt_dict_set(variables_origin, origin, var->name, NULL);
1115 }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
1118 abstract_origin = xbt_dynar_get_as(split, 2, char *);
1119 xbt_str_ltrim(abstract_origin, "<0x");
1120 xbt_str_rtrim(abstract_origin, ">");
1122 variable_name = (char *)xbt_dict_get_or_null(variables_origin, abstract_origin);
1123 variable_frame = get_frame_by_offset(*all_variables, strtoul(abstract_origin, NULL, 16));
1124 var = xbt_dict_get_or_null(variable_frame->variables, variable_name);
1126 }else if(strcmp(node_type, "DW_AT_location") == 0){
1128 if(valid_variable == 1 && var != NULL){
1130 var->location = xbt_new0(s_dw_location_t, 1);
1132 location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1134 if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
1136 var->location = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
1140 xbt_str_strip_spaces(line);
1141 split2 = xbt_str_split(line, "(");
1142 xbt_dynar_remove_at(split2, 0, NULL);
1143 loc_expr = xbt_str_join(split2, " ");
1144 xbt_str_rtrim(loc_expr, ")");
1145 var->location = get_location(NULL, loc_expr);
1146 xbt_dynar_free(&split2);
1152 }else if(strcmp(node_type, "DW_AT_external") == 0){
1158 read = getline(&line, &n, fp);
1162 if(new_variable == 1 && valid_variable == 1){
1164 variable_frame = xbt_dict_get_or_null(*all_variables, current_frame);
1165 xbt_dict_set(variable_frame->variables, var->name, var, NULL);
1171 }else if(strcmp(node_type, "(DW_TAG_inlined_subroutine)") == 0){
1173 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1174 origin = strdup(strtok(NULL, "<"));
1175 xbt_str_rtrim(origin, ">:");
1177 read = getline(&line, &n, fp);
1181 /* Wipeout the new line character */
1182 line[read - 1] = '\0';
1185 read = getline(&line, &n, fp);
1189 if(strlen(line) == 0){
1190 read = getline(&line, &n, fp);
1194 xbt_dynar_free(&split);
1195 xbt_str_rtrim(line, NULL);
1196 xbt_str_strip_spaces(line);
1197 split = xbt_str_split(line, " ");
1199 if(strncmp(xbt_dynar_get_as(split, 1, char *), "DW_AT_", 6) != 0)
1202 node_type = xbt_dynar_get_as(split, 1, char *);
1204 if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
1206 origin = xbt_dynar_get_as(split, 2, char *);
1207 xbt_str_ltrim(origin, "<0x");
1208 xbt_str_rtrim(origin, ">");
1210 subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, origin);
1211 subroutine_frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
1213 }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
1215 subroutine_frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1217 }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
1219 subroutine_frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1222 read = getline(&line, &n, fp);
1228 read = getline(&line, &n, fp);
1234 xbt_dynar_free(&split);
1241 static dw_location_t get_location(xbt_dict_t location_list, char *expr){
1243 dw_location_t loc = xbt_new0(s_dw_location_t, 1);
1245 if(location_list != NULL){
1247 char *key = bprintf("%d", (int)strtoul(expr, NULL, 16));
1248 loc->type = e_dw_loclist;
1249 loc->location.loclist = (xbt_dynar_t)xbt_dict_get_or_null(location_list, key);
1251 XBT_INFO("Key not found in loclist");
1257 char *tok = NULL, *tok2 = NULL;
1259 xbt_dynar_t tokens1 = xbt_str_split(expr, ";");
1260 xbt_dynar_t tokens2;
1262 loc->type = e_dw_compose;
1263 loc->location.compose = xbt_dynar_new(sizeof(dw_location_t), NULL);
1265 while(cursor < xbt_dynar_length(tokens1)){
1267 tok = xbt_dynar_get_as(tokens1, cursor, char*);
1268 tokens2 = xbt_str_split(tok, " ");
1269 tok2 = xbt_dynar_get_as(tokens2, 0, char*);
1271 if(strncmp(tok2, "DW_OP_reg", 9) == 0){
1272 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1273 new_element->type = e_dw_register;
1274 new_element->location.reg = atoi(strtok(tok2, "DW_OP_reg"));
1275 xbt_dynar_push(loc->location.compose, &new_element);
1276 }else if(strcmp(tok2, "DW_OP_fbreg:") == 0){
1277 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1278 new_element->type = e_dw_fbregister_op;
1279 new_element->location.fbreg_op = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1280 xbt_dynar_push(loc->location.compose, &new_element);
1281 }else if(strncmp(tok2, "DW_OP_breg", 10) == 0){
1282 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1283 new_element->type = e_dw_bregister_op;
1284 new_element->location.breg_op.reg = atoi(strtok(tok2, "DW_OP_breg"));
1285 new_element->location.breg_op.offset = atoi(xbt_dynar_get_as(tokens2, 2, char*));
1286 xbt_dynar_push(loc->location.compose, &new_element);
1287 }else if(strncmp(tok2, "DW_OP_lit", 9) == 0){
1288 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1289 new_element->type = e_dw_lit;
1290 new_element->location.lit = atoi(strtok(tok2, "DW_OP_lit"));
1291 xbt_dynar_push(loc->location.compose, &new_element);
1292 }else if(strcmp(tok2, "DW_OP_piece:") == 0){
1293 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1294 new_element->type = e_dw_piece;
1295 new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1296 /*if(strlen(xbt_dynar_get_as(tokens2, 1, char*)) > 1)
1297 new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1299 new_element->location.piece = xbt_dynar_get_as(tokens2, 1, char*)[0] - '0';*/
1300 xbt_dynar_push(loc->location.compose, &new_element);
1301 }else if(strcmp(tok2, "DW_OP_plus_uconst:") == 0){
1302 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1303 new_element->type = e_dw_plus_uconst;
1304 new_element->location.plus_uconst = atoi(xbt_dynar_get_as(tokens2, 1, char *));
1305 xbt_dynar_push(loc->location.compose, &new_element);
1306 }else if(strcmp(tok, "DW_OP_abs") == 0 ||
1307 strcmp(tok, "DW_OP_and") == 0 ||
1308 strcmp(tok, "DW_OP_div") == 0 ||
1309 strcmp(tok, "DW_OP_minus") == 0 ||
1310 strcmp(tok, "DW_OP_mod") == 0 ||
1311 strcmp(tok, "DW_OP_mul") == 0 ||
1312 strcmp(tok, "DW_OP_neg") == 0 ||
1313 strcmp(tok, "DW_OP_not") == 0 ||
1314 strcmp(tok, "DW_OP_or") == 0 ||
1315 strcmp(tok, "DW_OP_plus") == 0){
1316 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1317 new_element->type = e_dw_arithmetic;
1318 new_element->location.arithmetic = strdup(strtok(tok2, "DW_OP_"));
1319 xbt_dynar_push(loc->location.compose, &new_element);
1320 }else if(strcmp(tok, "DW_OP_stack_value") == 0){
1321 }else if(strcmp(tok2, "DW_OP_deref_size:") == 0){
1322 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1323 new_element->type = e_dw_deref;
1324 new_element->location.deref_size = (unsigned int short) atoi(xbt_dynar_get_as(tokens2, 1, char*));
1325 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1326 new_element->location.deref_size = atoi(xbt_dynar_get_as(tokens, cursor, char*));
1328 new_element->location.deref_size = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
1329 xbt_dynar_push(loc->location.compose, &new_element);
1330 }else if(strcmp(tok, "DW_OP_deref") == 0){
1331 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1332 new_element->type = e_dw_deref;
1333 new_element->location.deref_size = sizeof(void *);
1334 xbt_dynar_push(loc->location.compose, &new_element);
1335 }else if(strcmp(tok2, "DW_OP_constu:") == 0){
1336 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1337 new_element->type = e_dw_uconstant;
1338 new_element->location.uconstant.bytes = 1;
1339 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1340 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1341 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens, cursor, char*)));
1343 new_element->location.uconstant.value = (unsigned long int)(xbt_dynar_get_as(tokens, cursor, char*)[0] - '0');*/
1344 xbt_dynar_push(loc->location.compose, &new_element);
1345 }else if(strcmp(tok2, "DW_OP_consts:") == 0){
1346 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1347 new_element->type = e_dw_sconstant;
1348 new_element->location.sconstant.bytes = 1;
1349 new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1350 xbt_dynar_push(loc->location.compose, &new_element);
1351 }else if(strcmp(tok2, "DW_OP_const1u:") == 0 ||
1352 strcmp(tok2, "DW_OP_const2u:") == 0 ||
1353 strcmp(tok2, "DW_OP_const4u:") == 0 ||
1354 strcmp(tok2, "DW_OP_const8u:") == 0){
1355 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1356 new_element->type = e_dw_uconstant;
1357 new_element->location.uconstant.bytes = tok2[11] - '0';
1358 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1359 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1360 new_element->location.constant.value = atoi(xbt_dynar_get_as(tokens, cursor, char*));
1362 new_element->location.constant.value = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
1363 xbt_dynar_push(loc->location.compose, &new_element);
1364 }else if(strcmp(tok, "DW_OP_const1s") == 0 ||
1365 strcmp(tok, "DW_OP_const2s") == 0 ||
1366 strcmp(tok, "DW_OP_const4s") == 0 ||
1367 strcmp(tok, "DW_OP_const8s") == 0){
1368 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1369 new_element->type = e_dw_sconstant;
1370 new_element->location.sconstant.bytes = tok2[11] - '0';
1371 new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1372 xbt_dynar_push(loc->location.compose, &new_element);
1374 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1375 new_element->type = e_dw_unsupported;
1376 xbt_dynar_push(loc->location.compose, &new_element);
1380 xbt_dynar_free(&tokens2);
1384 xbt_dynar_free(&tokens1);
1393 void print_local_variables(xbt_dict_t list){
1395 dw_location_entry_t entry;
1396 dw_location_t location_entry;
1397 unsigned int cursor3 = 0, cursor4 = 0;
1398 xbt_dict_cursor_t cursor = 0, cursor2 = 0;
1400 char *frame_name, *variable_name;
1401 dw_frame_t current_frame;
1402 dw_local_variable_t current_variable;
1404 xbt_dict_foreach(list, cursor, frame_name, current_frame){
1405 fprintf(stderr, "Frame name : %s\n", current_frame->name);
1406 fprintf(stderr, "Location type : %d\n", current_frame->frame_base->type);
1407 xbt_dict_foreach((xbt_dict_t)current_frame->variables, cursor2, variable_name, current_variable){
1408 fprintf(stderr, "Name : %s\n", current_variable->name);
1409 if(current_variable->location == NULL)
1411 fprintf(stderr, "Location type : %d\n", current_variable->location->type);
1412 switch(current_variable->location->type){
1414 xbt_dynar_foreach(current_variable->location->location.loclist, cursor3, entry){
1415 fprintf(stderr, "Lowpc : %lx, Highpc : %lx,", entry->lowpc, entry->highpc);
1416 switch(entry->location->type){
1417 case e_dw_register :
1418 fprintf(stderr, " Location : in register %d\n", entry->location->location.reg);
1420 case e_dw_bregister_op:
1421 fprintf(stderr, " Location : Add %d to the value in register %d\n", entry->location->location.breg_op.offset, entry->location->location.breg_op.reg);
1424 fprintf(stderr, "Value already kwnown : %d\n", entry->location->location.lit);
1426 case e_dw_fbregister_op:
1427 fprintf(stderr, " Location : %d bytes from logical frame pointer\n", entry->location->location.fbreg_op);
1430 fprintf(stderr, " Location :\n");
1431 xbt_dynar_foreach(entry->location->location.compose, cursor4, location_entry){
1432 switch(location_entry->type){
1433 case e_dw_register :
1434 fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
1436 case e_dw_bregister_op:
1437 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);
1440 fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
1442 case e_dw_fbregister_op:
1443 fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
1446 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);
1448 case e_dw_arithmetic :
1449 fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
1452 fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
1454 case e_dw_uconstant :
1455 fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
1457 case e_dw_sconstant :
1458 fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
1461 fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
1467 fprintf(stderr, "Location type not supported\n");
1474 fprintf(stderr, "Location :\n");
1475 xbt_dynar_foreach(current_variable->location->location.compose, cursor4, location_entry){
1476 switch(location_entry->type){
1477 case e_dw_register :
1478 fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
1480 case e_dw_bregister_op:
1481 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);
1484 fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
1486 case e_dw_fbregister_op:
1487 fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
1490 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);
1492 case e_dw_arithmetic :
1493 fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
1496 fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
1498 case e_dw_uconstant :
1499 fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
1501 case e_dw_sconstant :
1502 fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
1505 fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
1511 fprintf(stderr, "Location type not supported\n");