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);
58 void _mc_cfg_cb_timeout(const char *name, int pos) {
59 if (_surf_init_status && !_surf_do_model_check) {
60 xbt_die("You are specifying a value to enable/disable timeout for wait requests after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
62 _surf_mc_timeout= xbt_cfg_get_int(_surf_cfg_set, name);
63 xbt_cfg_set_int(_surf_cfg_set,"model-check",1);
67 /* MC global data structures */
69 mc_state_t mc_current_state = NULL;
70 char mc_replay_mode = FALSE;
71 double *mc_time = NULL;
72 mc_snapshot_t initial_snapshot = NULL;
77 xbt_fifo_t mc_stack_safety = NULL;
78 mc_stats_t mc_stats = NULL;
82 mc_stats_pair_t mc_stats_pair = NULL;
83 xbt_fifo_t mc_stack_liveness = NULL;
84 mc_global_t initial_state_liveness = NULL;
88 xbt_dict_t mc_local_variables = NULL;
90 /* Ignore mechanism */
91 xbt_dynar_t mc_stack_comparison_ignore;
92 extern xbt_dynar_t mc_heap_comparison_ignore;
93 extern xbt_dynar_t stacks_areas;
95 xbt_automaton_t _mc_property_automaton = NULL;
97 /* Static functions */
99 static void MC_assert_pair(int prop);
100 static dw_location_t get_location(xbt_dict_t location_list, char *expr);
101 static dw_frame_t get_frame_by_offset(xbt_dict_t all_variables, unsigned long int offset);
103 void MC_do_the_modelcheck_for_real() {
104 if (!_surf_mc_property_file || _surf_mc_property_file[0]=='\0') {
105 if (mc_reduce_kind==e_mc_reduce_unset)
106 mc_reduce_kind=e_mc_reduce_dpor;
108 XBT_INFO("Check a safety property");
113 if (mc_reduce_kind==e_mc_reduce_unset)
114 mc_reduce_kind=e_mc_reduce_none;
116 XBT_INFO("Check the liveness property %s",_surf_mc_property_file);
117 MC_automaton_load(_surf_mc_property_file);
118 MC_modelcheck_liveness();
123 * \brief Initialize the model-checker data structures
125 void MC_init_safety(void)
128 raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
130 /* Check if MC is already initialized */
131 if (initial_snapshot)
134 mc_time = xbt_new0(double, simix_process_maxpid);
136 /* Initialize the data structures that must be persistent across every
137 iteration of the model-checker (in RAW memory) */
141 /* Initialize statistics */
142 mc_stats = xbt_new0(s_mc_stats_t, 1);
143 mc_stats->state_size = 1;
145 /* Create exploration stack */
146 mc_stack_safety = xbt_fifo_new();
153 /* Save the initial state */
154 initial_snapshot = xbt_new0(s_mc_snapshot_t, 1);
155 MC_take_snapshot(initial_snapshot);
163 void MC_compare(void){
168 void MC_modelcheck(void)
175 void MC_init_liveness(){
177 raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
179 mc_time = xbt_new0(double, simix_process_maxpid);
181 /* mc_time refers to clock for each process -> ignore it for heap comparison */
183 for(i = 0; i<simix_process_maxpid; i++)
184 MC_ignore_heap(&(mc_time[i]), sizeof(double));
188 /* Initialize the data structures that must be persistent across every
189 iteration of the model-checker (in RAW memory) */
193 char *ls_path = get_libsimgrid_path();
195 mc_local_variables = xbt_dict_new_homogeneous(NULL);
197 /* Get local variables in binary for state equality detection */
198 xbt_dict_t binary_location_list = MC_get_location_list(xbt_binary_name);
199 MC_get_local_variables(xbt_binary_name, binary_location_list, &mc_local_variables);
201 /* Get local variables in libsimgrid for state equality detection */
202 xbt_dict_t libsimgrid_location_list = MC_get_location_list(ls_path);
203 MC_get_local_variables(ls_path, libsimgrid_location_list, &mc_local_variables);
205 initial_state_liveness = xbt_new0(s_mc_global_t, 1);
209 MC_init_memory_map_info();
211 /* Get .plt section (start and end addresses) for data libsimgrid and data program comparison */
212 get_libsimgrid_plt_section();
213 get_binary_plt_section();
220 void MC_modelcheck_liveness(){
222 raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
228 /* Initialize statistics */
229 mc_stats_pair = xbt_new0(s_mc_stats_pair_t, 1);
231 XBT_DEBUG("Creating stack");
233 /* Create exploration stack */
234 mc_stack_liveness = xbt_fifo_new();
241 MC_print_statistics_pairs(mc_stats_pair);
249 MC_print_statistics(mc_stats);
255 int MC_random(int min, int max)
257 /*FIXME: return mc_current_state->executed_transition->random.value;*/
262 * \brief Schedules all the process that are ready to run
264 void MC_wait_for_requests(void)
266 smx_process_t process;
270 while (!xbt_dynar_is_empty(simix_global->process_to_run)) {
271 SIMIX_process_runall();
272 xbt_dynar_foreach(simix_global->process_that_ran, iter, process) {
273 req = &process->simcall;
274 if (req->call != SIMCALL_NONE && !MC_request_is_visible(req))
275 SIMIX_simcall_pre(req, 0);
280 int MC_deadlock_check()
282 int deadlock = FALSE;
283 smx_process_t process;
284 if(xbt_swag_size(simix_global->process_list)){
286 xbt_swag_foreach(process, simix_global->process_list){
287 if(process->simcall.call != SIMCALL_NONE
288 && MC_request_is_enabled(&process->simcall)){
298 * \brief Re-executes from the state at position start all the transitions indicated by
299 * a given model-checker stack.
300 * \param stack The stack with the transitions to execute.
301 * \param start Start index to begin the re-execution.
303 void MC_replay(xbt_fifo_t stack, int start)
305 int raw_mem = (mmalloc_get_current_heap() == raw_heap);
309 smx_simcall_t req = NULL, saved_req = NULL;
310 xbt_fifo_item_t item, start_item;
313 XBT_DEBUG("**** Begin Replay ****");
316 /* Restore the initial state */
317 MC_restore_snapshot(initial_snapshot);
318 /* At the moment of taking the snapshot the raw heap was set, so restoring
319 * it will set it back again, we have to unset it to continue */
323 start_item = xbt_fifo_get_last_item(stack);
326 start_item = xbt_fifo_get_prev_item(start_item);
331 /* Traverse the stack from the state at position start and re-execute the transitions */
332 for (item = start_item;
333 item != xbt_fifo_get_first_item(stack);
334 item = xbt_fifo_get_prev_item(item)) {
336 state = (mc_state_t) xbt_fifo_get_item_content(item);
337 saved_req = MC_state_get_executed_request(state, &value);
340 /* because we got a copy of the executed request, we have to fetch the
341 real one, pointed by the request field of the issuer process */
342 req = &saved_req->issuer->simcall;
344 /* Debug information */
345 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
346 req_str = MC_request_to_string(req, value);
347 XBT_DEBUG("Replay: %s (%p)", req_str, state);
352 SIMIX_simcall_pre(req, value);
353 MC_wait_for_requests();
355 /* Update statistics */
356 mc_stats->visited_states++;
357 mc_stats->executed_transitions++;
359 XBT_DEBUG("**** End Replay ****");
369 void MC_replay_liveness(xbt_fifo_t stack, int all_stack)
372 int raw_mem = (mmalloc_get_current_heap() == raw_heap);
376 smx_simcall_t req = NULL, saved_req = NULL;
377 xbt_fifo_item_t item;
379 mc_pair_stateless_t pair;
382 XBT_DEBUG("**** Begin Replay ****");
384 /* Restore the initial state */
385 MC_restore_snapshot(initial_state_liveness->initial_snapshot);
386 /* At the moment of taking the snapshot the raw heap was set, so restoring
387 * it will set it back again, we have to unset it to continue */
393 item = xbt_fifo_get_last_item(stack);
395 while(depth <= xbt_fifo_size(stack)){
397 pair = (mc_pair_stateless_t) xbt_fifo_get_item_content(item);
398 state = (mc_state_t) pair->graph_state;
400 if(pair->requests > 0){
402 saved_req = MC_state_get_executed_request(state, &value);
403 //XBT_DEBUG("SavedReq->call %u", saved_req->call);
405 if(saved_req != NULL){
406 /* because we got a copy of the executed request, we have to fetch the
407 real one, pointed by the request field of the issuer process */
408 req = &saved_req->issuer->simcall;
409 //XBT_DEBUG("Req->call %u", req->call);
411 /* Debug information */
412 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
413 req_str = MC_request_to_string(req, value);
414 XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
420 SIMIX_simcall_pre(req, value);
421 MC_wait_for_requests();
426 /* Update statistics */
427 mc_stats_pair->visited_pairs++;
429 item = xbt_fifo_get_prev_item(item);
434 /* Traverse the stack from the initial state and re-execute the transitions */
435 for (item = xbt_fifo_get_last_item(stack);
436 item != xbt_fifo_get_first_item(stack);
437 item = xbt_fifo_get_prev_item(item)) {
439 pair = (mc_pair_stateless_t) xbt_fifo_get_item_content(item);
440 state = (mc_state_t) pair->graph_state;
442 if(pair->requests > 0){
444 saved_req = MC_state_get_executed_request(state, &value);
445 //XBT_DEBUG("SavedReq->call %u", saved_req->call);
447 if(saved_req != NULL){
448 /* because we got a copy of the executed request, we have to fetch the
449 real one, pointed by the request field of the issuer process */
450 req = &saved_req->issuer->simcall;
451 //XBT_DEBUG("Req->call %u", req->call);
453 /* Debug information */
454 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
455 req_str = MC_request_to_string(req, value);
456 XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
462 SIMIX_simcall_pre(req, value);
463 MC_wait_for_requests();
468 /* Update statistics */
469 mc_stats_pair->visited_pairs++;
473 XBT_DEBUG("**** End Replay ****");
483 * \brief Dumps the contents of a model-checker's stack and shows the actual
485 * \param stack The stack to dump
487 void MC_dump_stack_safety(xbt_fifo_t stack)
490 raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
492 MC_show_stack_safety(stack);
494 if(!_surf_mc_checkpoint){
499 while ((state = (mc_state_t) xbt_fifo_pop(stack)) != NULL)
500 MC_state_delete(state);
513 void MC_show_stack_safety(xbt_fifo_t stack)
517 xbt_fifo_item_t item;
519 char *req_str = NULL;
521 for (item = xbt_fifo_get_last_item(stack);
522 (item ? (state = (mc_state_t) (xbt_fifo_get_item_content(item)))
523 : (NULL)); item = xbt_fifo_get_prev_item(item)) {
524 req = MC_state_get_executed_request(state, &value);
526 req_str = MC_request_to_string(req, value);
527 XBT_INFO("%s", req_str);
533 void MC_show_deadlock(smx_simcall_t req)
535 /*char *req_str = NULL;*/
536 XBT_INFO("**************************");
537 XBT_INFO("*** DEAD-LOCK DETECTED ***");
538 XBT_INFO("**************************");
539 XBT_INFO("Locked request:");
540 /*req_str = MC_request_to_string(req);
541 XBT_INFO("%s", req_str);
543 XBT_INFO("Counter-example execution trace:");
544 MC_dump_stack_safety(mc_stack_safety);
548 void MC_show_stack_liveness(xbt_fifo_t stack){
550 mc_pair_stateless_t pair;
551 xbt_fifo_item_t item;
553 char *req_str = NULL;
555 for (item = xbt_fifo_get_last_item(stack);
556 (item ? (pair = (mc_pair_stateless_t) (xbt_fifo_get_item_content(item)))
557 : (NULL)); item = xbt_fifo_get_prev_item(item)) {
558 req = MC_state_get_executed_request(pair->graph_state, &value);
560 if(pair->requests>0){
561 req_str = MC_request_to_string(req, value);
562 XBT_INFO("%s", req_str);
565 XBT_INFO("End of system requests but evolution in Büchi automaton");
571 void MC_dump_stack_liveness(xbt_fifo_t stack){
573 raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
575 mc_pair_stateless_t pair;
578 while ((pair = (mc_pair_stateless_t) xbt_fifo_pop(stack)) != NULL)
579 pair_stateless_free(pair);
588 void MC_print_statistics(mc_stats_t stats)
590 //XBT_INFO("State space size ~= %lu", stats->state_size);
591 XBT_INFO("Expanded states = %lu", stats->expanded_states);
592 XBT_INFO("Visited states = %lu", stats->visited_states);
593 XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
594 XBT_INFO("Expanded / Visited = %lf",
595 (double) stats->visited_states / stats->expanded_states);
596 /*XBT_INFO("Exploration coverage = %lf",
597 (double)stats->expanded_states / stats->state_size); */
600 void MC_print_statistics_pairs(mc_stats_pair_t stats)
602 XBT_INFO("Expanded pairs = %lu", stats->expanded_pairs);
603 XBT_INFO("Visited pairs = %lu", stats->visited_pairs);
604 //XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
605 XBT_INFO("Expanded / Visited = %lf",
606 (double) stats->visited_pairs / stats->expanded_pairs);
607 /*XBT_INFO("Exploration coverage = %lf",
608 (double)stats->expanded_states / stats->state_size); */
611 void MC_assert(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_dump_stack_safety(mc_stack_safety);
619 MC_print_statistics(mc_stats);
624 static void MC_assert_pair(int prop){
625 if (MC_is_active() && !prop) {
626 XBT_INFO("**************************");
627 XBT_INFO("*** PROPERTY NOT VALID ***");
628 XBT_INFO("**************************");
629 //XBT_INFO("Counter-example execution trace:");
630 MC_show_stack_liveness(mc_stack_liveness);
631 //MC_dump_snapshot_stack(mc_snapshot_stack);
632 MC_print_statistics_pairs(mc_stats_pair);
637 void MC_process_clock_add(smx_process_t process, double amount)
639 mc_time[process->pid] += amount;
642 double MC_process_clock_get(smx_process_t process)
646 return mc_time[process->pid];
654 void MC_automaton_load(const char *file){
656 raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
660 if (_mc_property_automaton == NULL)
661 _mc_property_automaton = xbt_automaton_new();
663 xbt_automaton_load(_mc_property_automaton,file);
672 void MC_automaton_new_propositional_symbol(const char* id, void* fct) {
674 raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
678 if (_mc_property_automaton == NULL)
679 _mc_property_automaton = xbt_automaton_new();
681 xbt_new_propositional_symbol(_mc_property_automaton,id,fct);
690 /************ MC_ignore ***********/
692 void MC_ignore_heap(void *address, size_t size){
694 raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
698 if(mc_heap_comparison_ignore == NULL)
699 mc_heap_comparison_ignore = xbt_dynar_new(sizeof(mc_heap_ignore_region_t), NULL);
701 mc_heap_ignore_region_t region = NULL;
702 region = xbt_new0(s_mc_heap_ignore_region_t, 1);
703 region->address = address;
706 if((address >= std_heap) && (address <= (void*)((char *)std_heap + STD_HEAP_SIZE))){
708 region->block = ((char*)address - (char*)((xbt_mheap_t)std_heap)->heapbase) / BLOCKSIZE + 1;
710 if(((xbt_mheap_t)std_heap)->heapinfo[region->block].type == 0){
711 region->fragment = -1;
713 region->fragment = ((uintptr_t) (ADDR2UINT (address) % (BLOCKSIZE))) >> ((xbt_mheap_t)std_heap)->heapinfo[region->block].type;
718 unsigned int cursor = 0;
719 mc_heap_ignore_region_t current_region;
720 xbt_dynar_foreach(mc_heap_comparison_ignore, cursor, current_region){
721 if(current_region->address > address)
725 xbt_dynar_insert_at(mc_heap_comparison_ignore, cursor, ®ion);
733 void MC_ignore_stack(const char *var_name, const char *frame){
735 raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
739 if(mc_stack_comparison_ignore == NULL)
740 mc_stack_comparison_ignore = xbt_dynar_new(sizeof(mc_stack_ignore_variable_t), NULL);
742 if(xbt_dynar_is_empty(mc_stack_comparison_ignore)){
744 mc_stack_ignore_variable_t var = NULL;
745 var = xbt_new0(s_mc_stack_ignore_variable_t, 1);
746 var->var_name = strdup(var_name);
747 var->frame = strdup(frame);
749 xbt_dynar_insert_at(mc_stack_comparison_ignore, 0, &var);
753 unsigned int cursor = 0;
755 int end = xbt_dynar_length(mc_stack_comparison_ignore) - 1;
756 mc_stack_ignore_variable_t current_var = NULL;
759 cursor = (start + end) / 2;
760 current_var = (mc_stack_ignore_variable_t)xbt_dynar_get_as(mc_stack_comparison_ignore, cursor, mc_stack_ignore_variable_t);
761 if(strcmp(current_var->frame, frame) == 0){
762 if(strcmp(current_var->var_name, var_name) == 0){
768 if(strcmp(current_var->var_name, var_name) < 0)
770 if(strcmp(current_var->var_name, var_name) > 0)
773 if(strcmp(current_var->frame, frame) < 0)
775 if(strcmp(current_var->frame, frame) > 0)
779 mc_stack_ignore_variable_t var = NULL;
780 var = xbt_new0(s_mc_stack_ignore_variable_t, 1);
781 var->var_name = strdup(var_name);
782 var->frame = strdup(frame);
784 if(strcmp(current_var->frame, frame) < 0)
785 xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor + 1, &var);
787 xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor, &var);
798 void MC_new_stack_area(void *stack, char *name, void* context, size_t size){
800 raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
803 if(stacks_areas == NULL)
804 stacks_areas = xbt_dynar_new(sizeof(stack_region_t), NULL);
806 stack_region_t region = NULL;
807 region = xbt_new0(s_stack_region_t, 1);
808 region->address = stack;
809 region->process_name = strdup(name);
810 region->context = context;
812 xbt_dynar_push(stacks_areas, ®ion);
820 /************ DWARF ***********/
822 xbt_dict_t MC_get_location_list(const char *elf_file){
824 char *command = bprintf("objdump -Wo %s", elf_file);
826 FILE *fp = popen(command, "r");
829 perror("popen for objdump failed");
831 int debug = 0; /*Detect if the program has been compiled with -g */
833 xbt_dict_t location_list = xbt_dict_new_homogeneous(NULL);
834 char *line = NULL, *loc_expr = NULL;
838 xbt_dynar_t split = NULL;
840 while ((read = getline(&line, &n, fp)) != -1) {
842 /* Wipeout the new line character */
843 line[read - 1] = '\0';
845 xbt_str_trim(line, NULL);
850 if(strlen(line) == 0)
855 if(strncmp(line, elf_file, strlen(elf_file)) == 0)
858 if(strncmp(line, "Contents", 8) == 0)
861 if(strncmp(line, "Offset", 6) == 0){
868 XBT_INFO("Your program must be compiled with -g");
872 xbt_dynar_t loclist = xbt_dynar_new(sizeof(dw_location_entry_t), NULL);
874 xbt_str_strip_spaces(line);
875 split = xbt_str_split(line, " ");
877 while(read != -1 && strcmp("<End", (char *)xbt_dynar_get_as(split, 1, char *)) != 0){
879 dw_location_entry_t new_entry = xbt_new0(s_dw_location_entry_t, 1);
880 new_entry->lowpc = strtoul((char *)xbt_dynar_get_as(split, 1, char *), NULL, 16);
881 new_entry->highpc = strtoul((char *)xbt_dynar_get_as(split, 2, char *), NULL, 16);
884 while(cursor_remove < 3){
885 xbt_dynar_remove_at(split, 0, NULL);
889 loc_expr = xbt_str_join(split, " ");
890 xbt_str_ltrim(loc_expr, "(");
891 xbt_str_rtrim(loc_expr, ")");
892 new_entry->location = get_location(NULL, loc_expr);
894 xbt_dynar_push(loclist, &new_entry);
896 xbt_dynar_free(&split);
899 read = getline(&line, &n, fp);
901 line[read - 1] = '\0';
902 xbt_str_strip_spaces(line);
903 split = xbt_str_split(line, " ");
909 char *key = bprintf("%d", (int)strtoul((char *)xbt_dynar_get_as(split, 0, char *), NULL, 16));
910 xbt_dict_set(location_list, key, loclist, NULL);
912 xbt_dynar_free(&split);
920 return location_list;
923 char *get_libsimgrid_path(){
925 char *command = bprintf("ldd %s", xbt_binary_name);
927 FILE *fp = popen(command, "r");
929 perror("popen for ldd failed");
936 while((read = getline(&line, &n, fp)) != -1){
941 /* Wipeout the new line character */
942 line[read - 1] = '\0';
944 xbt_str_strip_spaces(line);
945 xbt_str_ltrim(line, NULL);
946 split = xbt_str_split(line, " ");
948 if(strncmp((char *)xbt_dynar_get_as(split, 0, char *), "libsimgrid.so", 13) == 0){
952 return ((char *)xbt_dynar_get_as(split, 2, char *));
955 xbt_dynar_free(&split);
967 static dw_frame_t get_frame_by_offset(xbt_dict_t all_variables, unsigned long int offset){
969 xbt_dict_cursor_t cursor = NULL;
973 xbt_dict_foreach(all_variables, cursor, name, res) {
974 if(offset >= res->start && offset < res->end)
982 void MC_get_local_variables(const char *elf_file, xbt_dict_t location_list, xbt_dict_t *all_variables){
984 char *command = bprintf("objdump -Wi %s", elf_file);
986 FILE *fp = popen(command, "r");
989 perror("popen for objdump failed");
991 char *line = NULL, *origin, *abstract_origin, *current_frame = NULL;
994 int valid_variable = 1;
995 char *node_type = NULL, *location_type = NULL, *variable_name = NULL, *loc_expr = NULL;
996 xbt_dynar_t split = NULL, split2 = NULL;
998 xbt_dict_t variables_origin = xbt_dict_new_homogeneous(NULL);
999 xbt_dict_t subprograms_origin = xbt_dict_new_homogeneous(NULL);
1000 char *subprogram_name = NULL, *subprogram_start = NULL, *subprogram_end = NULL;
1001 int new_frame = 0, new_variable = 0;
1002 dw_frame_t variable_frame, subroutine_frame = NULL;
1004 read = getline(&line, &n, fp);
1006 while (read != -1) {
1009 read = getline(&line, &n, fp);
1013 /* Wipeout the new line character */
1014 line[read - 1] = '\0';
1016 if(strlen(line) == 0){
1017 read = getline(&line, &n, fp);
1021 xbt_str_ltrim(line, NULL);
1022 xbt_str_strip_spaces(line);
1025 read = getline(&line, &n, fp);
1029 xbt_dynar_free(&split);
1030 split = xbt_str_split(line, " ");
1033 node_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1035 if(strcmp(node_type, "(DW_TAG_subprogram)") == 0){ /* New frame */
1037 dw_frame_t frame = NULL;
1039 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1040 subprogram_start = strdup(strtok(NULL, "<"));
1041 xbt_str_rtrim(subprogram_start, ">:");
1043 read = getline(&line, &n, fp);
1048 read = getline(&line, &n, fp);
1052 /* Wipeout the new line character */
1053 line[read - 1] = '\0';
1055 if(strlen(line) == 0){
1056 read = getline(&line, &n, fp);
1060 xbt_dynar_free(&split);
1061 xbt_str_rtrim(line, NULL);
1062 xbt_str_strip_spaces(line);
1063 split = xbt_str_split(line, " ");
1065 node_type = xbt_dynar_get_as(split, 1, char *);
1067 if(strncmp(node_type, "DW_AT_", 6) != 0)
1070 if(strcmp(node_type, "DW_AT_sibling") == 0){
1072 subprogram_end = strdup(xbt_dynar_get_as(split, 3, char*));
1073 xbt_str_ltrim(subprogram_end, "<0x");
1074 xbt_str_rtrim(subprogram_end, ">");
1076 }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){ /* Frame already in dict */
1079 abstract_origin = strdup(xbt_dynar_get_as(split, 2, char*));
1080 xbt_str_ltrim(abstract_origin, "<0x");
1081 xbt_str_rtrim(abstract_origin, ">");
1082 subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, abstract_origin);
1083 frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
1085 }else if(strcmp(node_type, "DW_AT_name") == 0){
1088 free(current_frame);
1089 frame = xbt_new0(s_dw_frame_t, 1);
1090 frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1091 frame->variables = xbt_dict_new_homogeneous(NULL);
1092 frame->frame_base = xbt_new0(s_dw_location_t, 1);
1093 current_frame = strdup(frame->name);
1095 xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
1097 }else if(strcmp(node_type, "DW_AT_frame_base") == 0){
1099 location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1101 if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
1103 frame->frame_base = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
1107 xbt_str_strip_spaces(line);
1108 split2 = xbt_str_split(line, "(");
1109 xbt_dynar_remove_at(split2, 0, NULL);
1110 loc_expr = xbt_str_join(split2, " ");
1111 xbt_str_rtrim(loc_expr, ")");
1112 frame->frame_base = get_location(NULL, loc_expr);
1113 xbt_dynar_free(&split2);
1117 }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
1120 frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1122 }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
1125 frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1127 }else if(strcmp(node_type, "DW_AT_MIPS_linkage_name:") == 0){
1130 free(current_frame);
1131 frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1132 current_frame = strdup(frame->name);
1133 xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
1137 read = getline(&line, &n, fp);
1142 frame->start = strtoul(subprogram_start, NULL, 16);
1143 if(subprogram_end != NULL)
1144 frame->end = strtoul(subprogram_end, NULL, 16);
1145 xbt_dict_set(*all_variables, frame->name, frame, NULL);
1148 free(subprogram_start);
1149 if(subprogram_end != NULL){
1150 free(subprogram_end);
1151 subprogram_end = NULL;
1155 }else if(strcmp(node_type, "(DW_TAG_variable)") == 0){ /* New variable */
1157 dw_local_variable_t var = NULL;
1159 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1160 origin = strdup(strtok(NULL, "<"));
1161 xbt_str_rtrim(origin, ">:");
1163 read = getline(&line, &n, fp);
1168 read = getline(&line, &n, fp);
1172 /* Wipeout the new line character */
1173 line[read - 1] = '\0';
1175 if(strlen(line) == 0){
1176 read = getline(&line, &n, fp);
1180 xbt_dynar_free(&split);
1181 xbt_str_rtrim(line, NULL);
1182 xbt_str_strip_spaces(line);
1183 split = xbt_str_split(line, " ");
1185 node_type = xbt_dynar_get_as(split, 1, char *);
1187 if(strncmp(node_type, "DW_AT_", 6) != 0)
1190 if(strcmp(node_type, "DW_AT_name") == 0){
1193 var = xbt_new0(s_dw_local_variable_t, 1);
1194 var->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
1196 xbt_dict_set(variables_origin, origin, var->name, NULL);
1198 }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
1201 abstract_origin = xbt_dynar_get_as(split, 2, char *);
1202 xbt_str_ltrim(abstract_origin, "<0x");
1203 xbt_str_rtrim(abstract_origin, ">");
1205 variable_name = (char *)xbt_dict_get_or_null(variables_origin, abstract_origin);
1206 variable_frame = get_frame_by_offset(*all_variables, strtoul(abstract_origin, NULL, 16));
1207 var = xbt_dict_get_or_null(variable_frame->variables, variable_name);
1209 }else if(strcmp(node_type, "DW_AT_location") == 0){
1211 if(valid_variable == 1 && var != NULL){
1213 var->location = xbt_new0(s_dw_location_t, 1);
1215 location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
1217 if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
1219 var->location = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
1223 xbt_str_strip_spaces(line);
1224 split2 = xbt_str_split(line, "(");
1225 xbt_dynar_remove_at(split2, 0, NULL);
1226 loc_expr = xbt_str_join(split2, " ");
1227 xbt_str_rtrim(loc_expr, ")");
1228 var->location = get_location(NULL, loc_expr);
1229 xbt_dynar_free(&split2);
1235 }else if(strcmp(node_type, "DW_AT_external") == 0){
1241 read = getline(&line, &n, fp);
1245 if(new_variable == 1 && valid_variable == 1){
1247 variable_frame = xbt_dict_get_or_null(*all_variables, current_frame);
1248 xbt_dict_set(variable_frame->variables, var->name, var, NULL);
1254 }else if(strcmp(node_type, "(DW_TAG_inlined_subroutine)") == 0){
1256 strtok(xbt_dynar_get_as(split, 0, char *), "<");
1257 origin = strdup(strtok(NULL, "<"));
1258 xbt_str_rtrim(origin, ">:");
1260 read = getline(&line, &n, fp);
1264 /* Wipeout the new line character */
1265 line[read - 1] = '\0';
1268 read = getline(&line, &n, fp);
1272 if(strlen(line) == 0){
1273 read = getline(&line, &n, fp);
1277 xbt_dynar_free(&split);
1278 xbt_str_rtrim(line, NULL);
1279 xbt_str_strip_spaces(line);
1280 split = xbt_str_split(line, " ");
1282 if(strncmp(xbt_dynar_get_as(split, 1, char *), "DW_AT_", 6) != 0)
1285 node_type = xbt_dynar_get_as(split, 1, char *);
1287 if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
1289 origin = xbt_dynar_get_as(split, 2, char *);
1290 xbt_str_ltrim(origin, "<0x");
1291 xbt_str_rtrim(origin, ">");
1293 subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, origin);
1294 subroutine_frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
1296 }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
1298 subroutine_frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1300 }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
1302 subroutine_frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
1305 read = getline(&line, &n, fp);
1311 read = getline(&line, &n, fp);
1317 xbt_dynar_free(&split);
1324 static dw_location_t get_location(xbt_dict_t location_list, char *expr){
1326 dw_location_t loc = xbt_new0(s_dw_location_t, 1);
1328 if(location_list != NULL){
1330 char *key = bprintf("%d", (int)strtoul(expr, NULL, 16));
1331 loc->type = e_dw_loclist;
1332 loc->location.loclist = (xbt_dynar_t)xbt_dict_get_or_null(location_list, key);
1334 XBT_INFO("Key not found in loclist");
1340 char *tok = NULL, *tok2 = NULL;
1342 xbt_dynar_t tokens1 = xbt_str_split(expr, ";");
1343 xbt_dynar_t tokens2;
1345 loc->type = e_dw_compose;
1346 loc->location.compose = xbt_dynar_new(sizeof(dw_location_t), NULL);
1348 while(cursor < xbt_dynar_length(tokens1)){
1350 tok = xbt_dynar_get_as(tokens1, cursor, char*);
1351 tokens2 = xbt_str_split(tok, " ");
1352 tok2 = xbt_dynar_get_as(tokens2, 0, char*);
1354 if(strncmp(tok2, "DW_OP_reg", 9) == 0){
1355 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1356 new_element->type = e_dw_register;
1357 new_element->location.reg = atoi(strtok(tok2, "DW_OP_reg"));
1358 xbt_dynar_push(loc->location.compose, &new_element);
1359 }else if(strcmp(tok2, "DW_OP_fbreg:") == 0){
1360 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1361 new_element->type = e_dw_fbregister_op;
1362 new_element->location.fbreg_op = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1363 xbt_dynar_push(loc->location.compose, &new_element);
1364 }else if(strncmp(tok2, "DW_OP_breg", 10) == 0){
1365 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1366 new_element->type = e_dw_bregister_op;
1367 new_element->location.breg_op.reg = atoi(strtok(tok2, "DW_OP_breg"));
1368 new_element->location.breg_op.offset = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1369 xbt_dynar_push(loc->location.compose, &new_element);
1370 }else if(strncmp(tok2, "DW_OP_lit", 9) == 0){
1371 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1372 new_element->type = e_dw_lit;
1373 new_element->location.lit = atoi(strtok(tok2, "DW_OP_lit"));
1374 xbt_dynar_push(loc->location.compose, &new_element);
1375 }else if(strcmp(tok2, "DW_OP_piece:") == 0){
1376 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1377 new_element->type = e_dw_piece;
1378 new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1379 /*if(strlen(xbt_dynar_get_as(tokens2, 1, char*)) > 1)
1380 new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, 1, char*));
1382 new_element->location.piece = xbt_dynar_get_as(tokens2, 1, char*)[0] - '0';*/
1383 xbt_dynar_push(loc->location.compose, &new_element);
1384 }else if(strcmp(tok2, "DW_OP_plus_uconst:") == 0){
1385 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1386 new_element->type = e_dw_plus_uconst;
1387 new_element->location.plus_uconst = atoi(xbt_dynar_get_as(tokens2, 1, char *));
1388 xbt_dynar_push(loc->location.compose, &new_element);
1389 }else if(strcmp(tok, "DW_OP_abs") == 0 ||
1390 strcmp(tok, "DW_OP_and") == 0 ||
1391 strcmp(tok, "DW_OP_div") == 0 ||
1392 strcmp(tok, "DW_OP_minus") == 0 ||
1393 strcmp(tok, "DW_OP_mod") == 0 ||
1394 strcmp(tok, "DW_OP_mul") == 0 ||
1395 strcmp(tok, "DW_OP_neg") == 0 ||
1396 strcmp(tok, "DW_OP_not") == 0 ||
1397 strcmp(tok, "DW_OP_or") == 0 ||
1398 strcmp(tok, "DW_OP_plus") == 0){
1399 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1400 new_element->type = e_dw_arithmetic;
1401 new_element->location.arithmetic = strdup(strtok(tok2, "DW_OP_"));
1402 xbt_dynar_push(loc->location.compose, &new_element);
1403 }else if(strcmp(tok, "DW_OP_stack_value") == 0){
1404 }else if(strcmp(tok2, "DW_OP_deref_size:") == 0){
1405 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1406 new_element->type = e_dw_deref;
1407 new_element->location.deref_size = (unsigned int short) atoi(xbt_dynar_get_as(tokens2, 1, char*));
1408 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1409 new_element->location.deref_size = atoi(xbt_dynar_get_as(tokens, cursor, char*));
1411 new_element->location.deref_size = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
1412 xbt_dynar_push(loc->location.compose, &new_element);
1413 }else if(strcmp(tok, "DW_OP_deref") == 0){
1414 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1415 new_element->type = e_dw_deref;
1416 new_element->location.deref_size = sizeof(void *);
1417 xbt_dynar_push(loc->location.compose, &new_element);
1418 }else if(strcmp(tok2, "DW_OP_constu:") == 0){
1419 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1420 new_element->type = e_dw_uconstant;
1421 new_element->location.uconstant.bytes = 1;
1422 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1423 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1424 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens, cursor, char*)));
1426 new_element->location.uconstant.value = (unsigned long int)(xbt_dynar_get_as(tokens, cursor, char*)[0] - '0');*/
1427 xbt_dynar_push(loc->location.compose, &new_element);
1428 }else if(strcmp(tok2, "DW_OP_consts:") == 0){
1429 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1430 new_element->type = e_dw_sconstant;
1431 new_element->location.sconstant.bytes = 1;
1432 new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1433 xbt_dynar_push(loc->location.compose, &new_element);
1434 }else if(strcmp(tok2, "DW_OP_const1u:") == 0 ||
1435 strcmp(tok2, "DW_OP_const2u:") == 0 ||
1436 strcmp(tok2, "DW_OP_const4u:") == 0 ||
1437 strcmp(tok2, "DW_OP_const8u:") == 0){
1438 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1439 new_element->type = e_dw_uconstant;
1440 new_element->location.uconstant.bytes = tok2[11] - '0';
1441 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1442 /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
1443 new_element->location.constant.value = atoi(xbt_dynar_get_as(tokens, cursor, char*));
1445 new_element->location.constant.value = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
1446 xbt_dynar_push(loc->location.compose, &new_element);
1447 }else if(strcmp(tok, "DW_OP_const1s") == 0 ||
1448 strcmp(tok, "DW_OP_const2s") == 0 ||
1449 strcmp(tok, "DW_OP_const4s") == 0 ||
1450 strcmp(tok, "DW_OP_const8s") == 0){
1451 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1452 new_element->type = e_dw_sconstant;
1453 new_element->location.sconstant.bytes = tok2[11] - '0';
1454 new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, 1, char*)));
1455 xbt_dynar_push(loc->location.compose, &new_element);
1457 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
1458 new_element->type = e_dw_unsupported;
1459 xbt_dynar_push(loc->location.compose, &new_element);
1463 xbt_dynar_free(&tokens2);
1467 xbt_dynar_free(&tokens1);
1476 void print_local_variables(xbt_dict_t list){
1478 dw_location_entry_t entry;
1479 dw_location_t location_entry;
1480 unsigned int cursor3 = 0, cursor4 = 0;
1481 xbt_dict_cursor_t cursor = 0, cursor2 = 0;
1483 char *frame_name, *variable_name;
1484 dw_frame_t current_frame;
1485 dw_local_variable_t current_variable;
1487 xbt_dict_foreach(list, cursor, frame_name, current_frame){
1488 fprintf(stderr, "Frame name : %s\n", current_frame->name);
1489 fprintf(stderr, "Location type : %d\n", current_frame->frame_base->type);
1490 xbt_dict_foreach((xbt_dict_t)current_frame->variables, cursor2, variable_name, current_variable){
1491 fprintf(stderr, "Name : %s\n", current_variable->name);
1492 if(current_variable->location == NULL)
1494 fprintf(stderr, "Location type : %d\n", current_variable->location->type);
1495 switch(current_variable->location->type){
1497 xbt_dynar_foreach(current_variable->location->location.loclist, cursor3, entry){
1498 fprintf(stderr, "Lowpc : %lx, Highpc : %lx,", entry->lowpc, entry->highpc);
1499 switch(entry->location->type){
1500 case e_dw_register :
1501 fprintf(stderr, " Location : in register %d\n", entry->location->location.reg);
1503 case e_dw_bregister_op:
1504 fprintf(stderr, " Location : Add %d to the value in register %d\n", entry->location->location.breg_op.offset, entry->location->location.breg_op.reg);
1507 fprintf(stderr, "Value already kwnown : %d\n", entry->location->location.lit);
1509 case e_dw_fbregister_op:
1510 fprintf(stderr, " Location : %d bytes from logical frame pointer\n", entry->location->location.fbreg_op);
1513 fprintf(stderr, " Location :\n");
1514 xbt_dynar_foreach(entry->location->location.compose, cursor4, location_entry){
1515 switch(location_entry->type){
1516 case e_dw_register :
1517 fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
1519 case e_dw_bregister_op:
1520 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);
1523 fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
1525 case e_dw_fbregister_op:
1526 fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
1529 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);
1531 case e_dw_arithmetic :
1532 fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
1535 fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
1537 case e_dw_uconstant :
1538 fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
1540 case e_dw_sconstant :
1541 fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
1544 fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
1550 fprintf(stderr, "Location type not supported\n");
1557 fprintf(stderr, "Location :\n");
1558 xbt_dynar_foreach(current_variable->location->location.compose, cursor4, location_entry){
1559 switch(location_entry->type){
1560 case e_dw_register :
1561 fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
1563 case e_dw_bregister_op:
1564 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);
1567 fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
1569 case e_dw_fbregister_op:
1570 fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
1573 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);
1575 case e_dw_arithmetic :
1576 fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
1579 fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
1581 case e_dw_uconstant :
1582 fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
1584 case e_dw_sconstant :
1585 fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
1588 fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
1594 fprintf(stderr, "Location type not supported\n");