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);
157 void MC_compare(void){
162 void MC_modelcheck(void)
169 void MC_modelcheck_liveness(){
171 raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
174 XBT_INFO("Start init mc");
176 mc_time = xbt_new0(double, simix_process_maxpid);
178 /* mc_time refers to clock for each process -> ignore it for heap comparison */
180 for(i = 0; i<simix_process_maxpid; i++)
181 MC_ignore(&(mc_time[i]), sizeof(double));
185 /* Initialize the data structures that must be persistent across every
186 iteration of the model-checker (in RAW memory) */
190 char *ls_path = get_libsimgrid_path();
192 mc_local_variables = xbt_dict_new_homogeneous(NULL);
194 /* Get local variables in binary for state equality detection */
195 xbt_dict_t binary_location_list = MC_get_location_list(xbt_binary_name);
196 MC_get_local_variables(xbt_binary_name, binary_location_list, &mc_local_variables);
198 /* Get local variables in libsimgrid for state equality detection */
199 xbt_dict_t libsimgrid_location_list = MC_get_location_list(ls_path);
200 MC_get_local_variables(ls_path, libsimgrid_location_list, &mc_local_variables);
202 /* Initialize statistics */
203 mc_stats_pair = xbt_new0(s_mc_stats_pair_t, 1);
205 XBT_DEBUG("Creating stack");
207 /* Create exploration stack */
208 mc_stack_liveness = xbt_fifo_new();
215 MC_print_statistics_pairs(mc_stats_pair);
224 MC_print_statistics(mc_stats);
230 int MC_random(int min, int max)
232 /*FIXME: return mc_current_state->executed_transition->random.value;*/
237 * \brief Schedules all the process that are ready to run
239 void MC_wait_for_requests(void)
241 smx_process_t process;
245 while (!xbt_dynar_is_empty(simix_global->process_to_run)) {
246 SIMIX_process_runall();
247 xbt_dynar_foreach(simix_global->process_that_ran, iter, process) {
248 req = &process->simcall;
249 if (req->call != SIMCALL_NONE && !MC_request_is_visible(req))
250 SIMIX_simcall_pre(req, 0);
255 int MC_deadlock_check()
257 int deadlock = FALSE;
258 smx_process_t process;
259 if(xbt_swag_size(simix_global->process_list)){
261 xbt_swag_foreach(process, simix_global->process_list){
262 if(process->simcall.call != SIMCALL_NONE
263 && MC_request_is_enabled(&process->simcall)){
273 * \brief Re-executes from the state at position start all the transitions indicated by
274 * a given model-checker stack.
275 * \param stack The stack with the transitions to execute.
276 * \param start Start index to begin the re-execution.
278 void MC_replay(xbt_fifo_t stack, int start)
280 raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
284 smx_simcall_t req = NULL, saved_req = NULL;
285 xbt_fifo_item_t item, start_item;
288 XBT_DEBUG("**** Begin Replay ****");
291 /* Restore the initial state */
292 MC_restore_snapshot(initial_snapshot);
293 /* At the moment of taking the snapshot the raw heap was set, so restoring
294 * it will set it back again, we have to unset it to continue */
298 start_item = xbt_fifo_get_last_item(stack);
301 start_item = xbt_fifo_get_prev_item(start_item);
306 /* Traverse the stack from the state at position start and re-execute the transitions */
307 for (item = start_item;
308 item != xbt_fifo_get_first_item(stack);
309 item = xbt_fifo_get_prev_item(item)) {
311 state = (mc_state_t) xbt_fifo_get_item_content(item);
312 saved_req = MC_state_get_executed_request(state, &value);
315 /* because we got a copy of the executed request, we have to fetch the
316 real one, pointed by the request field of the issuer process */
317 req = &saved_req->issuer->simcall;
319 /* Debug information */
320 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
321 req_str = MC_request_to_string(req, value);
322 XBT_DEBUG("Replay: %s (%p)", req_str, state);
327 SIMIX_simcall_pre(req, value);
328 MC_wait_for_requests();
330 /* Update statistics */
331 mc_stats->visited_states++;
332 mc_stats->executed_transitions++;
334 XBT_DEBUG("**** End Replay ****");
344 void MC_replay_liveness(xbt_fifo_t stack, int all_stack)
347 raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
351 smx_simcall_t req = NULL, saved_req = NULL;
352 xbt_fifo_item_t item;
354 mc_pair_stateless_t pair;
357 XBT_DEBUG("**** Begin Replay ****");
359 /* Restore the initial state */
360 MC_restore_snapshot(initial_snapshot_liveness);
361 /* At the moment of taking the snapshot the raw heap was set, so restoring
362 * it will set it back again, we have to unset it to continue */
367 item = xbt_fifo_get_last_item(stack);
369 while(depth <= xbt_fifo_size(stack)){
371 pair = (mc_pair_stateless_t) xbt_fifo_get_item_content(item);
372 state = (mc_state_t) pair->graph_state;
374 if(pair->requests > 0){
376 saved_req = MC_state_get_executed_request(state, &value);
377 //XBT_DEBUG("SavedReq->call %u", saved_req->call);
379 if(saved_req != NULL){
380 /* because we got a copy of the executed request, we have to fetch the
381 real one, pointed by the request field of the issuer process */
382 req = &saved_req->issuer->simcall;
383 //XBT_DEBUG("Req->call %u", req->call);
385 /* Debug information */
386 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
387 req_str = MC_request_to_string(req, value);
388 XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
394 SIMIX_simcall_pre(req, value);
395 MC_wait_for_requests();
400 /* Update statistics */
401 mc_stats_pair->visited_pairs++;
403 item = xbt_fifo_get_prev_item(item);
408 /* Traverse the stack from the initial state and re-execute the transitions */
409 for (item = xbt_fifo_get_last_item(stack);
410 item != xbt_fifo_get_first_item(stack);
411 item = xbt_fifo_get_prev_item(item)) {
413 pair = (mc_pair_stateless_t) xbt_fifo_get_item_content(item);
414 state = (mc_state_t) pair->graph_state;
416 if(pair->requests > 0){
418 saved_req = MC_state_get_executed_request(state, &value);
419 //XBT_DEBUG("SavedReq->call %u", saved_req->call);
421 if(saved_req != NULL){
422 /* because we got a copy of the executed request, we have to fetch the
423 real one, pointed by the request field of the issuer process */
424 req = &saved_req->issuer->simcall;
425 //XBT_DEBUG("Req->call %u", req->call);
427 /* Debug information */
428 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
429 req_str = MC_request_to_string(req, value);
430 XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
436 SIMIX_simcall_pre(req, value);
437 MC_wait_for_requests();
442 /* Update statistics */
443 mc_stats_pair->visited_pairs++;
447 XBT_DEBUG("**** End Replay ****");
457 * \brief Dumps the contents of a model-checker's stack and shows the actual
459 * \param stack The stack to dump
461 void MC_dump_stack_safety(xbt_fifo_t stack)
464 raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
466 MC_show_stack_safety(stack);
468 if(!_surf_mc_checkpoint){
473 while ((state = (mc_state_t) xbt_fifo_pop(stack)) != NULL)
474 MC_state_delete(state);
487 void MC_show_stack_safety(xbt_fifo_t stack)
491 xbt_fifo_item_t item;
493 char *req_str = NULL;
495 for (item = xbt_fifo_get_last_item(stack);
496 (item ? (state = (mc_state_t) (xbt_fifo_get_item_content(item)))
497 : (NULL)); item = xbt_fifo_get_prev_item(item)) {
498 req = MC_state_get_executed_request(state, &value);
500 req_str = MC_request_to_string(req, value);
501 XBT_INFO("%s", req_str);
507 void MC_show_deadlock(smx_simcall_t req)
509 /*char *req_str = NULL;*/
510 XBT_INFO("**************************");
511 XBT_INFO("*** DEAD-LOCK DETECTED ***");
512 XBT_INFO("**************************");
513 XBT_INFO("Locked request:");
514 /*req_str = MC_request_to_string(req);
515 XBT_INFO("%s", req_str);
517 XBT_INFO("Counter-example execution trace:");
518 MC_dump_stack_safety(mc_stack_safety);
522 void MC_show_stack_liveness(xbt_fifo_t stack){
524 mc_pair_stateless_t pair;
525 xbt_fifo_item_t item;
527 char *req_str = NULL;
529 for (item = xbt_fifo_get_last_item(stack);
530 (item ? (pair = (mc_pair_stateless_t) (xbt_fifo_get_item_content(item)))
531 : (NULL)); item = xbt_fifo_get_prev_item(item)) {
532 req = MC_state_get_executed_request(pair->graph_state, &value);
534 if(pair->requests>0){
535 req_str = MC_request_to_string(req, value);
536 XBT_INFO("%s", req_str);
539 XBT_INFO("End of system requests but evolution in Büchi automaton");
545 void MC_dump_stack_liveness(xbt_fifo_t stack){
547 raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
549 mc_pair_stateless_t pair;
552 while ((pair = (mc_pair_stateless_t) xbt_fifo_pop(stack)) != NULL)
553 pair_stateless_free(pair);
564 void MC_print_statistics(mc_stats_t stats)
566 //XBT_INFO("State space size ~= %lu", stats->state_size);
567 XBT_INFO("Expanded states = %lu", stats->expanded_states);
568 XBT_INFO("Visited states = %lu", stats->visited_states);
569 XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
570 XBT_INFO("Expanded / Visited = %lf",
571 (double) stats->visited_states / stats->expanded_states);
572 /*XBT_INFO("Exploration coverage = %lf",
573 (double)stats->expanded_states / stats->state_size); */
576 void MC_print_statistics_pairs(mc_stats_pair_t stats)
578 XBT_INFO("Expanded pairs = %lu", stats->expanded_pairs);
579 XBT_INFO("Visited pairs = %lu", stats->visited_pairs);
580 //XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
581 XBT_INFO("Expanded / Visited = %lf",
582 (double) stats->visited_pairs / stats->expanded_pairs);
583 /*XBT_INFO("Exploration coverage = %lf",
584 (double)stats->expanded_states / stats->state_size); */
587 void MC_assert(int prop)
589 if (MC_is_active() && !prop){
590 XBT_INFO("**************************");
591 XBT_INFO("*** PROPERTY NOT VALID ***");
592 XBT_INFO("**************************");
593 XBT_INFO("Counter-example execution trace:");
594 MC_dump_stack_safety(mc_stack_safety);
595 MC_print_statistics(mc_stats);
600 static void MC_assert_pair(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_show_stack_liveness(mc_stack_liveness);
607 //MC_dump_snapshot_stack(mc_snapshot_stack);
608 MC_print_statistics_pairs(mc_stats_pair);
613 void MC_process_clock_add(smx_process_t process, double amount)
615 mc_time[process->pid] += amount;
618 double MC_process_clock_get(smx_process_t process)
621 return mc_time[process->pid];
626 void MC_automaton_load(const char *file){
628 raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
632 if (_mc_property_automaton == NULL)
633 _mc_property_automaton = xbt_automaton_new();
635 xbt_automaton_load(_mc_property_automaton,file);
646 void MC_automaton_new_propositional_symbol(const char* id, void* fct) {
648 raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
652 if (_mc_property_automaton == NULL)
653 _mc_property_automaton = xbt_automaton_new();
655 xbt_new_propositional_symbol(_mc_property_automaton,id,fct);
666 /************ MC_ignore ***********/
668 void MC_ignore(void *address, size_t size){
672 if(mc_comparison_ignore == NULL)
673 mc_comparison_ignore = xbt_dynar_new(sizeof(mc_ignore_region_t), NULL);
675 mc_ignore_region_t region = NULL;
676 region = xbt_new0(s_mc_ignore_region_t, 1);
677 region->address = address;
680 if((address >= std_heap) && (address <= (void*)((char *)std_heap + STD_HEAP_SIZE))){
682 region->block = ((char*)address - (char*)((xbt_mheap_t)std_heap)->heapbase) / BLOCKSIZE + 1;
684 if(((xbt_mheap_t)std_heap)->heapinfo[region->block].type == 0){
685 region->fragment = -1;
687 region->fragment = ((uintptr_t) (ADDR2UINT (address) % (BLOCKSIZE))) >> ((xbt_mheap_t)std_heap)->heapinfo[region->block].type;
692 unsigned int cursor = 0;
693 mc_ignore_region_t current_region;
694 xbt_dynar_foreach(mc_comparison_ignore, cursor, current_region){
695 if(current_region->address > address)
699 xbt_dynar_insert_at(mc_comparison_ignore, cursor, ®ion);
704 void MC_new_stack_area(void *stack, char *name, void* context){
708 if(stacks_areas == NULL)
709 stacks_areas = xbt_dynar_new(sizeof(stack_region_t), NULL);
711 stack_region_t region = NULL;
712 region = xbt_new0(s_stack_region_t, 1);
713 region->address = stack;
714 region->process_name = strdup(name);
715 region->context = context;
716 xbt_dynar_push(stacks_areas, ®ion);
721 /************ DWARF ***********/
723 xbt_dict_t MC_get_location_list(const char *elf_file){
725 char *command = bprintf("objdump -Wo %s", elf_file);
727 FILE *fp = popen(command, "r");
730 perror("popen for objdump failed");
732 int debug = 0; /*Detect if the program has been compiled with -g */
734 xbt_dict_t location_list = xbt_dict_new_homogeneous(NULL);
735 char *line = NULL, *loc_expr = NULL;
739 xbt_dynar_t split = NULL;
741 while ((read = getline(&line, &n, fp)) != -1) {
743 /* Wipeout the new line character */
744 line[read - 1] = '\0';
746 xbt_str_trim(line, NULL);
751 if(strlen(line) == 0)
756 if(strncmp(line, elf_file, strlen(elf_file)) == 0)
759 if(strncmp(line, "Contents", 8) == 0)
762 if(strncmp(line, "Offset", 6) == 0){
769 XBT_INFO("Your program must be compiled with -g");
773 xbt_dynar_t loclist = xbt_dynar_new(sizeof(dw_location_entry_t), NULL);
775 xbt_str_strip_spaces(line);
776 split = xbt_str_split(line, " ");
778 while(read != -1 && strcmp("<End", (char *)xbt_dynar_get_as(split, 1, char *)) != 0){
780 dw_location_entry_t new_entry = xbt_new0(s_dw_location_entry_t, 1);
781 new_entry->lowpc = strtoul((char *)xbt_dynar_get_as(split, 1, char *), NULL, 16);
782 new_entry->highpc = strtoul((char *)xbt_dynar_get_as(split, 2, char *), NULL, 16);
785 while(cursor_remove < 3){
786 xbt_dynar_remove_at(split, 0, NULL);
790 loc_expr = xbt_str_join(split, " ");
791 xbt_str_ltrim(loc_expr, "(");
792 xbt_str_rtrim(loc_expr, ")");
793 new_entry->location = get_location(NULL, loc_expr);
795 xbt_dynar_push(loclist, &new_entry);
797 xbt_dynar_free(&split);
800 read = getline(&line, &n, fp);
802 line[read - 1] = '\0';
803 xbt_str_strip_spaces(line);
804 split = xbt_str_split(line, " ");
810 char *key = bprintf("%d", (int)strtoul((char *)xbt_dynar_get_as(split, 0, char *), NULL, 16));
811 xbt_dict_set(location_list, key, loclist, NULL);
813 xbt_dynar_free(&split);
821 return location_list;
824 char *get_libsimgrid_path(){
826 char *command = bprintf("ldd %s", xbt_binary_name);
828 FILE *fp = popen(command, "r");
830 perror("popen for ldd failed");
837 while((read = getline(&line, &n, fp)) != -1){
842 /* Wipeout the new line character */
843 line[read - 1] = '\0';
845 xbt_str_strip_spaces(line);
846 xbt_str_ltrim(line, NULL);
847 split = xbt_str_split(line, " ");
849 if(strncmp((char *)xbt_dynar_get_as(split, 0, char *), "libsimgrid.so", 13) == 0){
853 return ((char *)xbt_dynar_get_as(split, 2, char *));
856 xbt_dynar_free(&split);
868 static dw_frame_t get_frame_by_offset(xbt_dict_t all_variables, unsigned long int offset){
870 xbt_dict_cursor_t cursor = NULL;
874 xbt_dict_foreach(all_variables, cursor, name, res) {
875 if(offset >= res->start && offset < res->end)
883 void MC_get_local_variables(const char *elf_file, xbt_dict_t location_list, xbt_dict_t *all_variables){
885 char *command = bprintf("objdump -Wi %s", elf_file);
887 FILE *fp = popen(command, "r");
890 perror("popen for objdump failed");
892 char *line = NULL, *origin, *abstract_origin, *current_frame = NULL;
895 int valid_variable = 1;
896 char *node_type = NULL, *location_type = NULL, *variable_name = NULL, *loc_expr = NULL;
897 xbt_dynar_t split = NULL, split2 = NULL;
899 xbt_dict_t variables_origin = xbt_dict_new_homogeneous(NULL);
900 xbt_dict_t subprograms_origin = xbt_dict_new_homogeneous(NULL);
901 char *subprogram_name = NULL, *subprogram_start = NULL, *subprogram_end = NULL;
902 int new_frame = 0, new_variable = 0;
903 dw_frame_t variable_frame, subroutine_frame = NULL;
905 read = getline(&line, &n, fp);
910 read = getline(&line, &n, fp);
914 /* Wipeout the new line character */
915 line[read - 1] = '\0';
917 if(strlen(line) == 0){
918 read = getline(&line, &n, fp);
922 xbt_str_ltrim(line, NULL);
923 xbt_str_strip_spaces(line);
926 read = getline(&line, &n, fp);
930 xbt_dynar_free(&split);
931 split = xbt_str_split(line, " ");
934 node_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
936 if(strcmp(node_type, "(DW_TAG_subprogram)") == 0){ /* New frame */
938 dw_frame_t frame = NULL;
940 strtok(xbt_dynar_get_as(split, 0, char *), "<");
941 subprogram_start = strdup(strtok(NULL, "<"));
942 xbt_str_rtrim(subprogram_start, ">:");
944 read = getline(&line, &n, fp);
949 read = getline(&line, &n, fp);
953 /* Wipeout the new line character */
954 line[read - 1] = '\0';
956 if(strlen(line) == 0){
957 read = getline(&line, &n, fp);
961 xbt_dynar_free(&split);
962 xbt_str_rtrim(line, NULL);
963 xbt_str_strip_spaces(line);
964 split = xbt_str_split(line, " ");
966 node_type = xbt_dynar_get_as(split, 1, char *);
968 if(strncmp(node_type, "DW_AT_", 6) != 0)
971 if(strcmp(node_type, "DW_AT_sibling") == 0){
973 subprogram_end = strdup(xbt_dynar_get_as(split, 3, char*));
974 xbt_str_ltrim(subprogram_end, "<0x");
975 xbt_str_rtrim(subprogram_end, ">");
977 }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){ /* Frame already in dict */
980 abstract_origin = strdup(xbt_dynar_get_as(split, 2, char*));
981 xbt_str_ltrim(abstract_origin, "<0x");
982 xbt_str_rtrim(abstract_origin, ">");
983 subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, abstract_origin);
984 frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
986 }else if(strcmp(node_type, "DW_AT_name") == 0){
990 frame = xbt_new0(s_dw_frame_t, 1);
991 frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
992 frame->variables = xbt_dict_new_homogeneous(NULL);
993 frame->frame_base = xbt_new0(s_dw_location_t, 1);
994 current_frame = strdup(frame->name);
996 xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
998 }else if(strcmp(node_type, "DW_AT_frame_base") == 0){
1000 location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1002 if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
1004 frame->frame_base = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
1008 xbt_str_strip_spaces(line);
1009 split2 = xbt_str_split(line, "(");
1010 xbt_dynar_remove_at(split2, 0, NULL);
1011 loc_expr = xbt_str_join(split2, " ");
1012 xbt_str_rtrim(loc_expr, ")");
1013 frame->frame_base = get_location(NULL, loc_expr);
1014 xbt_dynar_free(&split2);
1018 }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
1021 frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1023 }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
1026 frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1028 }else if(strcmp(node_type, "DW_AT_MIPS_linkage_name:") == 0){
1031 free(current_frame);
1032 frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1033 current_frame = strdup(frame->name);
1034 xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
1038 read = getline(&line, &n, fp);
1043 frame->start = strtoul(subprogram_start, NULL, 16);
1044 if(subprogram_end != NULL)
1045 frame->end = strtoul(subprogram_end, NULL, 16);
1046 xbt_dict_set(*all_variables, frame->name, frame, NULL);
1049 free(subprogram_start);
1050 if(subprogram_end != NULL){
1051 free(subprogram_end);
1052 subprogram_end = NULL;
1056 }else if(strcmp(node_type, "(DW_TAG_variable)") == 0){ /* New variable */
1058 dw_local_variable_t var = NULL;
1060 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1061 origin = strdup(strtok(NULL, "<"));
1062 xbt_str_rtrim(origin, ">:");
1064 read = getline(&line, &n, fp);
1069 read = getline(&line, &n, fp);
1073 /* Wipeout the new line character */
1074 line[read - 1] = '\0';
1076 if(strlen(line) == 0){
1077 read = getline(&line, &n, fp);
1081 xbt_dynar_free(&split);
1082 xbt_str_rtrim(line, NULL);
1083 xbt_str_strip_spaces(line);
1084 split = xbt_str_split(line, " ");
1086 node_type = xbt_dynar_get_as(split, 1, char *);
1088 if(strncmp(node_type, "DW_AT_", 6) != 0)
1091 if(strcmp(node_type, "DW_AT_name") == 0){
1094 var = xbt_new0(s_dw_local_variable_t, 1);
1095 var->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1097 xbt_dict_set(variables_origin, origin, var->name, NULL);
1099 }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
1102 abstract_origin = xbt_dynar_get_as(split, 2, char *);
1103 xbt_str_ltrim(abstract_origin, "<0x");
1104 xbt_str_rtrim(abstract_origin, ">");
1106 variable_name = (char *)xbt_dict_get_or_null(variables_origin, abstract_origin);
1107 variable_frame = get_frame_by_offset(*all_variables, strtoul(abstract_origin, NULL, 16));
1108 var = xbt_dict_get_or_null(variable_frame->variables, variable_name);
1110 }else if(strcmp(node_type, "DW_AT_location") == 0){
1112 if(valid_variable == 1 && var != NULL){
1114 var->location = xbt_new0(s_dw_location_t, 1);
1116 location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1118 if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
1120 var->location = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
1124 xbt_str_strip_spaces(line);
1125 split2 = xbt_str_split(line, "(");
1126 xbt_dynar_remove_at(split2, 0, NULL);
1127 loc_expr = xbt_str_join(split2, " ");
1128 xbt_str_rtrim(loc_expr, ")");
1129 var->location = get_location(NULL, loc_expr);
1130 xbt_dynar_free(&split2);
1136 }else if(strcmp(node_type, "DW_AT_external") == 0){
1142 read = getline(&line, &n, fp);
1146 if(new_variable == 1 && valid_variable == 1){
1148 variable_frame = xbt_dict_get_or_null(*all_variables, current_frame);
1149 xbt_dict_set(variable_frame->variables, var->name, var, NULL);
1155 }else if(strcmp(node_type, "(DW_TAG_inlined_subroutine)") == 0){
1157 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1158 origin = strdup(strtok(NULL, "<"));
1159 xbt_str_rtrim(origin, ">:");
1161 read = getline(&line, &n, fp);
1165 /* Wipeout the new line character */
1166 line[read - 1] = '\0';
1169 read = getline(&line, &n, fp);
1173 if(strlen(line) == 0){
1174 read = getline(&line, &n, fp);
1178 xbt_dynar_free(&split);
1179 xbt_str_rtrim(line, NULL);
1180 xbt_str_strip_spaces(line);
1181 split = xbt_str_split(line, " ");
1183 if(strncmp(xbt_dynar_get_as(split, 1, char *), "DW_AT_", 6) != 0)
1186 node_type = xbt_dynar_get_as(split, 1, char *);
1188 if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
1190 origin = xbt_dynar_get_as(split, 2, char *);
1191 xbt_str_ltrim(origin, "<0x");
1192 xbt_str_rtrim(origin, ">");
1194 subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, origin);
1195 subroutine_frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
1197 }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
1199 subroutine_frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1201 }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
1203 subroutine_frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1206 read = getline(&line, &n, fp);
1212 read = getline(&line, &n, fp);
1218 xbt_dynar_free(&split);
1225 static dw_location_t get_location(xbt_dict_t location_list, char *expr){
1227 dw_location_t loc = xbt_new0(s_dw_location_t, 1);
1229 if(location_list != NULL){
1231 char *key = bprintf("%d", (int)strtoul(expr, NULL, 16));
1232 loc->type = e_dw_loclist;
1233 loc->location.loclist = (xbt_dynar_t)xbt_dict_get_or_null(location_list, key);
1235 XBT_INFO("Key not found in loclist");
1241 char *tok = NULL, *tok2 = NULL;
1243 xbt_dynar_t tokens1 = xbt_str_split(expr, ";");
1244 xbt_dynar_t tokens2;
1246 loc->type = e_dw_compose;
1247 loc->location.compose = xbt_dynar_new(sizeof(dw_location_t), NULL);
1249 while(cursor < xbt_dynar_length(tokens1)){
1251 tok = xbt_dynar_get_as(tokens1, cursor, char*);
1252 tokens2 = xbt_str_split(tok, " ");
1253 tok2 = xbt_dynar_get_as(tokens2, 0, char*);
1255 if(strncmp(tok2, "DW_OP_reg", 9) == 0){
1256 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1257 new_element->type = e_dw_register;
1258 new_element->location.reg = atoi(strtok(tok2, "DW_OP_reg"));
1259 xbt_dynar_push(loc->location.compose, &new_element);
1260 }else if(strcmp(tok2, "DW_OP_fbreg:") == 0){
1261 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1262 new_element->type = e_dw_fbregister_op;
1263 new_element->location.fbreg_op = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1264 xbt_dynar_push(loc->location.compose, &new_element);
1265 }else if(strncmp(tok2, "DW_OP_breg", 10) == 0){
1266 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1267 new_element->type = e_dw_bregister_op;
1268 new_element->location.breg_op.reg = atoi(strtok(tok2, "DW_OP_breg"));
1269 new_element->location.breg_op.offset = atoi(xbt_dynar_get_as(tokens2, 2, char*));
1270 xbt_dynar_push(loc->location.compose, &new_element);
1271 }else if(strncmp(tok2, "DW_OP_lit", 9) == 0){
1272 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1273 new_element->type = e_dw_lit;
1274 new_element->location.lit = atoi(strtok(tok2, "DW_OP_lit"));
1275 xbt_dynar_push(loc->location.compose, &new_element);
1276 }else if(strcmp(tok2, "DW_OP_piece:") == 0){
1277 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1278 new_element->type = e_dw_piece;
1279 new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1280 /*if(strlen(xbt_dynar_get_as(tokens2, 1, char*)) > 1)
1281 new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1283 new_element->location.piece = xbt_dynar_get_as(tokens2, 1, char*)[0] - '0';*/
1284 xbt_dynar_push(loc->location.compose, &new_element);
1285 }else if(strcmp(tok2, "DW_OP_plus_uconst:") == 0){
1286 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1287 new_element->type = e_dw_plus_uconst;
1288 new_element->location.plus_uconst = atoi(xbt_dynar_get_as(tokens2, 1, char *));
1289 xbt_dynar_push(loc->location.compose, &new_element);
1290 }else if(strcmp(tok, "DW_OP_abs") == 0 ||
1291 strcmp(tok, "DW_OP_and") == 0 ||
1292 strcmp(tok, "DW_OP_div") == 0 ||
1293 strcmp(tok, "DW_OP_minus") == 0 ||
1294 strcmp(tok, "DW_OP_mod") == 0 ||
1295 strcmp(tok, "DW_OP_mul") == 0 ||
1296 strcmp(tok, "DW_OP_neg") == 0 ||
1297 strcmp(tok, "DW_OP_not") == 0 ||
1298 strcmp(tok, "DW_OP_or") == 0 ||
1299 strcmp(tok, "DW_OP_plus") == 0){
1300 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1301 new_element->type = e_dw_arithmetic;
1302 new_element->location.arithmetic = strdup(strtok(tok2, "DW_OP_"));
1303 xbt_dynar_push(loc->location.compose, &new_element);
1304 }else if(strcmp(tok, "DW_OP_stack_value") == 0){
1305 }else if(strcmp(tok2, "DW_OP_deref_size:") == 0){
1306 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1307 new_element->type = e_dw_deref;
1308 new_element->location.deref_size = (unsigned int short) atoi(xbt_dynar_get_as(tokens2, 1, char*));
1309 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1310 new_element->location.deref_size = atoi(xbt_dynar_get_as(tokens, cursor, char*));
1312 new_element->location.deref_size = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
1313 xbt_dynar_push(loc->location.compose, &new_element);
1314 }else if(strcmp(tok, "DW_OP_deref") == 0){
1315 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1316 new_element->type = e_dw_deref;
1317 new_element->location.deref_size = sizeof(void *);
1318 xbt_dynar_push(loc->location.compose, &new_element);
1319 }else if(strcmp(tok2, "DW_OP_constu:") == 0){
1320 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1321 new_element->type = e_dw_uconstant;
1322 new_element->location.uconstant.bytes = 1;
1323 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1324 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1325 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens, cursor, char*)));
1327 new_element->location.uconstant.value = (unsigned long int)(xbt_dynar_get_as(tokens, cursor, char*)[0] - '0');*/
1328 xbt_dynar_push(loc->location.compose, &new_element);
1329 }else if(strcmp(tok2, "DW_OP_consts:") == 0){
1330 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1331 new_element->type = e_dw_sconstant;
1332 new_element->location.sconstant.bytes = 1;
1333 new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1334 xbt_dynar_push(loc->location.compose, &new_element);
1335 }else if(strcmp(tok2, "DW_OP_const1u:") == 0 ||
1336 strcmp(tok2, "DW_OP_const2u:") == 0 ||
1337 strcmp(tok2, "DW_OP_const4u:") == 0 ||
1338 strcmp(tok2, "DW_OP_const8u:") == 0){
1339 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1340 new_element->type = e_dw_uconstant;
1341 new_element->location.uconstant.bytes = tok2[11] - '0';
1342 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1343 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1344 new_element->location.constant.value = atoi(xbt_dynar_get_as(tokens, cursor, char*));
1346 new_element->location.constant.value = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
1347 xbt_dynar_push(loc->location.compose, &new_element);
1348 }else if(strcmp(tok, "DW_OP_const1s") == 0 ||
1349 strcmp(tok, "DW_OP_const2s") == 0 ||
1350 strcmp(tok, "DW_OP_const4s") == 0 ||
1351 strcmp(tok, "DW_OP_const8s") == 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 = tok2[11] - '0';
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);
1358 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1359 new_element->type = e_dw_unsupported;
1360 xbt_dynar_push(loc->location.compose, &new_element);
1364 xbt_dynar_free(&tokens2);
1368 xbt_dynar_free(&tokens1);
1377 void print_local_variables(xbt_dict_t list){
1379 dw_location_entry_t entry;
1380 dw_location_t location_entry;
1381 unsigned int cursor3 = 0, cursor4 = 0;
1382 xbt_dict_cursor_t cursor = 0, cursor2 = 0;
1384 char *frame_name, *variable_name;
1385 dw_frame_t current_frame;
1386 dw_local_variable_t current_variable;
1388 xbt_dict_foreach(list, cursor, frame_name, current_frame){
1389 fprintf(stderr, "Frame name : %s\n", current_frame->name);
1390 fprintf(stderr, "Location type : %d\n", current_frame->frame_base->type);
1391 xbt_dict_foreach((xbt_dict_t)current_frame->variables, cursor2, variable_name, current_variable){
1392 fprintf(stderr, "Name : %s\n", current_variable->name);
1393 if(current_variable->location == NULL)
1395 fprintf(stderr, "Location type : %d\n", current_variable->location->type);
1396 switch(current_variable->location->type){
1398 xbt_dynar_foreach(current_variable->location->location.loclist, cursor3, entry){
1399 fprintf(stderr, "Lowpc : %lx, Highpc : %lx,", entry->lowpc, entry->highpc);
1400 switch(entry->location->type){
1401 case e_dw_register :
1402 fprintf(stderr, " Location : in register %d\n", entry->location->location.reg);
1404 case e_dw_bregister_op:
1405 fprintf(stderr, " Location : Add %d to the value in register %d\n", entry->location->location.breg_op.offset, entry->location->location.breg_op.reg);
1408 fprintf(stderr, "Value already kwnown : %d\n", entry->location->location.lit);
1410 case e_dw_fbregister_op:
1411 fprintf(stderr, " Location : %d bytes from logical frame pointer\n", entry->location->location.fbreg_op);
1414 fprintf(stderr, " Location :\n");
1415 xbt_dynar_foreach(entry->location->location.compose, cursor4, location_entry){
1416 switch(location_entry->type){
1417 case e_dw_register :
1418 fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
1420 case e_dw_bregister_op:
1421 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);
1424 fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
1426 case e_dw_fbregister_op:
1427 fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
1430 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);
1432 case e_dw_arithmetic :
1433 fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
1436 fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
1438 case e_dw_uconstant :
1439 fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
1441 case e_dw_sconstant :
1442 fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
1445 fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
1451 fprintf(stderr, "Location type not supported\n");
1458 fprintf(stderr, "Location :\n");
1459 xbt_dynar_foreach(current_variable->location->location.compose, cursor4, location_entry){
1460 switch(location_entry->type){
1461 case e_dw_register :
1462 fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
1464 case e_dw_bregister_op:
1465 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);
1468 fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
1470 case e_dw_fbregister_op:
1471 fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
1474 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);
1476 case e_dw_arithmetic :
1477 fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
1480 fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
1482 case e_dw_uconstant :
1483 fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
1485 case e_dw_sconstant :
1486 fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
1489 fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
1495 fprintf(stderr, "Location type not supported\n");