#include <sys/wait.h>
#include <sys/time.h>
+#include "simgrid/sg_config.h"
#include "../surf/surf_private.h"
#include "../simix/smx_private.h"
#include "../xbt/mmalloc/mmprivate.h"
#include "xbt/fifo.h"
#include "mc_private.h"
#include "xbt/automaton.h"
+#include "xbt/dict.h"
XBT_LOG_NEW_CATEGORY(mc, "All MC categories");
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_global, mc,
/* Configuration support */
e_mc_reduce_t mc_reduce_kind=e_mc_reduce_unset;
-extern int _surf_init_status;
+int _sg_do_model_check = 0;
+int _sg_mc_checkpoint=0;
+char* _sg_mc_property_file=NULL;
+int _sg_mc_timeout=0;
+int _sg_mc_max_depth=1000;
+int _sg_mc_visited=0;
+
+extern int _sg_init_status;
void _mc_cfg_cb_reduce(const char *name, int pos) {
- if (_surf_init_status && !_surf_do_model_check) {
+ if (_sg_init_status && !_sg_do_model_check) {
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.");
}
- char *val= xbt_cfg_get_string(_surf_cfg_set, name);
+ char *val= xbt_cfg_get_string(_sg_cfg_set, name);
if (!strcasecmp(val,"none")) {
mc_reduce_kind = e_mc_reduce_none;
} else if (!strcasecmp(val,"dpor")) {
} else {
xbt_die("configuration option %s can only take 'none' or 'dpor' as a value",name);
}
- xbt_cfg_set_int(_surf_cfg_set,"model-check",1);
}
void _mc_cfg_cb_checkpoint(const char *name, int pos) {
- if (_surf_init_status && !_surf_do_model_check) {
+ if (_sg_init_status && !_sg_do_model_check) {
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.");
}
- _surf_mc_checkpoint = xbt_cfg_get_int(_surf_cfg_set, name);
- xbt_cfg_set_int(_surf_cfg_set,"model-check",1);
+ _sg_mc_checkpoint = xbt_cfg_get_int(_sg_cfg_set, name);
}
void _mc_cfg_cb_property(const char *name, int pos) {
- if (_surf_init_status && !_surf_do_model_check) {
+ if (_sg_init_status && !_sg_do_model_check) {
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.");
}
- _surf_mc_property_file= xbt_cfg_get_string(_surf_cfg_set, name);
- xbt_cfg_set_int(_surf_cfg_set,"model-check",1);
+ _sg_mc_property_file= xbt_cfg_get_string(_sg_cfg_set, name);
+}
+
+void _mc_cfg_cb_timeout(const char *name, int pos) {
+ if (_sg_init_status && !_sg_do_model_check) {
+ 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.");
+ }
+ _sg_mc_timeout= xbt_cfg_get_int(_sg_cfg_set, name);
+}
+
+void _mc_cfg_cb_max_depth(const char *name, int pos) {
+ if (_sg_init_status && !_sg_do_model_check) {
+ xbt_die("You are specifying a max depth value after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
+ }
+ _sg_mc_max_depth= xbt_cfg_get_int(_sg_cfg_set, name);
+}
+
+void _mc_cfg_cb_visited(const char *name, int pos) {
+ if (_sg_init_status && !_sg_do_model_check) {
+ xbt_die("You are specifying a number of stored visited states after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
+ }
+ _sg_mc_visited= xbt_cfg_get_int(_sg_cfg_set, name);
}
mc_state_t mc_current_state = NULL;
char mc_replay_mode = FALSE;
double *mc_time = NULL;
-mc_snapshot_t initial_snapshot = NULL;
-int raw_mem_set;
+mc_comparison_times_t mc_comp_times = NULL;
+double mc_snapshot_comparison_time;
/* Safety */
xbt_fifo_t mc_stack_safety = NULL;
mc_stats_t mc_stats = NULL;
+mc_global_t initial_state_safety = NULL;
/* Liveness */
mc_stats_pair_t mc_stats_pair = NULL;
xbt_fifo_t mc_stack_liveness = NULL;
-mc_snapshot_t initial_snapshot_liveness = NULL;
+mc_global_t initial_state_liveness = NULL;
int compare;
-extern xbt_dynar_t mmalloc_ignore;
+
+/* Local */
+xbt_dict_t mc_local_variables = NULL;
+/* Global */
+xbt_dynar_t mc_global_variables = NULL;
+
+/* Ignore mechanism */
+xbt_dynar_t mc_stack_comparison_ignore;
+xbt_dynar_t mc_data_bss_comparison_ignore;
+extern xbt_dynar_t mc_heap_comparison_ignore;
+extern xbt_dynar_t stacks_areas;
xbt_automaton_t _mc_property_automaton = NULL;
+/* Static functions */
+
static void MC_assert_pair(int prop);
+static dw_location_t get_location(xbt_dict_t location_list, char *expr);
+static dw_frame_t get_frame_by_offset(xbt_dict_t all_variables, unsigned long int offset);
+static size_t data_bss_ignore_size(void *address);
+static void MC_get_global_variables(char *elf_file);
void MC_do_the_modelcheck_for_real() {
- if (!_surf_mc_property_file || _surf_mc_property_file[0]=='\0') {
+
+ MC_SET_RAW_MEM;
+ mc_comp_times = xbt_new0(s_mc_comparison_times_t, 1);
+ MC_UNSET_RAW_MEM;
+
+ if (!_sg_mc_property_file || _sg_mc_property_file[0]=='\0') {
if (mc_reduce_kind==e_mc_reduce_unset)
mc_reduce_kind=e_mc_reduce_dpor;
XBT_INFO("Check a safety property");
- MC_modelcheck();
+ MC_modelcheck_safety();
} else {
if (mc_reduce_kind==e_mc_reduce_unset)
mc_reduce_kind=e_mc_reduce_none;
- XBT_INFO("Check the liveness property %s",_surf_mc_property_file);
- MC_automaton_load(_surf_mc_property_file);
+ XBT_INFO("Check the liveness property %s",_sg_mc_property_file);
+ MC_automaton_load(_sg_mc_property_file);
MC_modelcheck_liveness();
}
}
-/**
- * \brief Initialize the model-checker data structures
- */
-void MC_init_safety(void)
-{
- raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
+void MC_compare(void){
+ compare = 1;
+}
+
+void MC_init(){
+
+ int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
+
+ mc_time = xbt_new0(double, simix_process_maxpid);
+
+ /* mc_time refers to clock for each process -> ignore it for heap comparison */
+ int i;
+ for(i = 0; i<simix_process_maxpid; i++)
+ MC_ignore_heap(&(mc_time[i]), sizeof(double));
+
+ compare = 0;
+
+ /* Initialize the data structures that must be persistent across every
+ iteration of the model-checker (in RAW memory) */
+
+ MC_SET_RAW_MEM;
+
+ MC_init_memory_map_info();
+
+ mc_local_variables = xbt_dict_new_homogeneous(NULL);
+
+ /* Get local variables in binary for state equality detection */
+ xbt_dict_t binary_location_list = MC_get_location_list(xbt_binary_name);
+ MC_get_local_variables(xbt_binary_name, binary_location_list, &mc_local_variables);
+
+ /* Get local variables in libsimgrid for state equality detection */
+ xbt_dict_t libsimgrid_location_list = MC_get_location_list(libsimgrid_path);
+ MC_get_local_variables(libsimgrid_path, libsimgrid_location_list, &mc_local_variables);
+
+ xbt_dict_free(&libsimgrid_location_list);
+ xbt_dict_free(&binary_location_list);
+
+ /* Get .plt section (start and end addresses) for data libsimgrid and data program comparison */
+ get_libsimgrid_plt_section();
+ get_binary_plt_section();
+
+ MC_ignore_data_bss(&mc_comp_times, sizeof(mc_comp_times));
+ MC_ignore_data_bss(&mc_snapshot_comparison_time, sizeof(mc_snapshot_comparison_time));
+
+ /* Get global variables */
+ MC_get_global_variables(xbt_binary_name);
+ MC_get_global_variables(libsimgrid_path);
+
+ MC_UNSET_RAW_MEM;
+
+ /* Ignore some variables from xbt/ex.h used by exception e for stacks comparison */
+ MC_ignore_stack("e", "*");
+ MC_ignore_stack("__ex_cleanup", "*");
+ MC_ignore_stack("__ex_mctx_en", "*");
+ MC_ignore_stack("__ex_mctx_me", "*");
+ MC_ignore_stack("__xbt_ex_ctx_ptr", "*");
+ MC_ignore_stack("_log_ev", "*");
+ MC_ignore_stack("_throw_ctx", "*");
+ MC_ignore_stack("ctx", "*");
+
+ MC_ignore_stack("next_context", "smx_ctx_sysv_suspend_serial");
+ MC_ignore_stack("i", "smx_ctx_sysv_suspend_serial");
+
+ if(raw_mem_set)
+ MC_SET_RAW_MEM;
+
+}
+
+void MC_modelcheck_safety(void)
+{
+ int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
/* Check if MC is already initialized */
- if (initial_snapshot)
+ if (initial_state_safety)
return;
mc_time = xbt_new0(double, simix_process_maxpid);
MC_UNSET_RAW_MEM;
+ if(_sg_mc_visited > 0){
+ MC_init();
+ }else{
+ MC_SET_RAW_MEM;
+ MC_init_memory_map_info();
+ get_libsimgrid_plt_section();
+ get_binary_plt_section();
+ MC_UNSET_RAW_MEM;
+ }
+
MC_dpor_init();
MC_SET_RAW_MEM;
/* Save the initial state */
- initial_snapshot = xbt_new0(s_mc_snapshot_t, 1);
- MC_take_snapshot(initial_snapshot);
+ initial_state_safety = xbt_new0(s_mc_global_t, 1);
+ initial_state_safety->snapshot = MC_take_snapshot();
MC_UNSET_RAW_MEM;
+ MC_dpor();
if(raw_mem_set)
MC_SET_RAW_MEM;
- else
- MC_UNSET_RAW_MEM;
-
-}
-void MC_compare(void){
- compare = 1;
-}
-
-
-void MC_modelcheck(void)
-{
- MC_init_safety();
- MC_dpor();
MC_exit();
}
void MC_modelcheck_liveness(){
- raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
-
- /* init stuff */
- XBT_DEBUG("Start init mc");
-
- mc_time = xbt_new0(double, simix_process_maxpid);
-
- /* mc_time refers to clock for each process -> ignore it for heap comparison */
- int i;
- for(i = 0; i<simix_process_maxpid; i++)
- MC_ignore(&(mc_time[i]), sizeof(double));
-
- compare = 0;
-
- /* Initialize the data structures that must be persistent across every
- iteration of the model-checker (in RAW memory) */
+ int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
+ MC_init();
+
MC_SET_RAW_MEM;
-
+
/* Initialize statistics */
mc_stats_pair = xbt_new0(s_mc_stats_pair_t, 1);
- XBT_DEBUG("Creating stack");
-
/* Create exploration stack */
mc_stack_liveness = xbt_fifo_new();
- MC_UNSET_RAW_MEM;
+ initial_state_liveness = xbt_new0(s_mc_global_t, 1);
+ MC_UNSET_RAW_MEM;
MC_ddfs_init();
/* We're done */
MC_print_statistics_pairs(mc_stats_pair);
xbt_free(mc_time);
- MC_memory_exit();
- exit(0);
+
+ if(raw_mem_set)
+ MC_SET_RAW_MEM;
+
}
void MC_exit(void)
{
- MC_print_statistics(mc_stats);
xbt_free(mc_time);
MC_memory_exit();
+ xbt_abort();
}
*/
void MC_replay(xbt_fifo_t stack, int start)
{
- raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
+ int raw_mem = (mmalloc_get_current_heap() == raw_heap);
int value, i = 1;
char *req_str;
if(start == -1){
/* Restore the initial state */
- MC_restore_snapshot(initial_snapshot);
+ MC_restore_snapshot(initial_state_safety->snapshot);
/* At the moment of taking the snapshot the raw heap was set, so restoring
* it will set it back again, we have to unset it to continue */
MC_UNSET_RAW_MEM;
}
XBT_DEBUG("**** End Replay ****");
- if(raw_mem_set)
+ if(raw_mem)
MC_SET_RAW_MEM;
else
MC_UNSET_RAW_MEM;
void MC_replay_liveness(xbt_fifo_t stack, int all_stack)
{
- raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
+ initial_state_liveness->raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
int value;
char *req_str;
XBT_DEBUG("**** Begin Replay ****");
/* Restore the initial state */
- MC_restore_snapshot(initial_snapshot_liveness);
+ MC_restore_snapshot(initial_state_liveness->snapshot);
+
/* At the moment of taking the snapshot the raw heap was set, so restoring
* it will set it back again, we have to unset it to continue */
- MC_UNSET_RAW_MEM;
+ if(!initial_state_liveness->raw_mem_set)
+ MC_UNSET_RAW_MEM;
if(all_stack){
XBT_DEBUG("**** End Replay ****");
- if(raw_mem_set)
+ if(initial_state_liveness->raw_mem_set)
MC_SET_RAW_MEM;
else
MC_UNSET_RAW_MEM;
void MC_dump_stack_safety(xbt_fifo_t stack)
{
- raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
+ int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
MC_show_stack_safety(stack);
- if(!_surf_mc_checkpoint){
+ if(!_sg_mc_checkpoint){
mc_state_t state;
void MC_dump_stack_liveness(xbt_fifo_t stack){
- raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
+ int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
mc_pair_stateless_t pair;
MC_SET_RAW_MEM;
while ((pair = (mc_pair_stateless_t) xbt_fifo_pop(stack)) != NULL)
- MC_pair_stateless_delete(pair);
+ pair_stateless_free(pair);
MC_UNSET_RAW_MEM;
if(raw_mem_set)
MC_SET_RAW_MEM;
- else
- MC_UNSET_RAW_MEM;
}
//XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
XBT_INFO("Expanded / Visited = %lf",
(double) stats->visited_pairs / stats->expanded_pairs);
- /*XBT_INFO("Exploration coverage = %lf",
- (double)stats->expanded_states / stats->state_size); */
+
+ if(mmalloc_get_current_heap() == raw_heap)
+ MC_UNSET_RAW_MEM;
}
void MC_assert(int prop)
{
- if (MC_IS_ENABLED && !prop){
+ if (MC_is_active() && !prop){
XBT_INFO("**************************");
XBT_INFO("*** PROPERTY NOT VALID ***");
XBT_INFO("**************************");
}
static void MC_assert_pair(int prop){
- if (MC_IS_ENABLED && !prop) {
+ if (MC_is_active() && !prop) {
XBT_INFO("**************************");
XBT_INFO("*** PROPERTY NOT VALID ***");
XBT_INFO("**************************");
double MC_process_clock_get(smx_process_t process)
{
- if(mc_time)
- return mc_time[process->pid];
- else
+ if(mc_time){
+ if(process != NULL)
+ return mc_time[process->pid];
+ else
+ return -1;
+ }else{
return 0;
+ }
}
void MC_automaton_load(const char *file){
- raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
+ int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
MC_SET_RAW_MEM;
if(raw_mem_set)
MC_SET_RAW_MEM;
- else
- MC_UNSET_RAW_MEM;
}
void MC_automaton_new_propositional_symbol(const char* id, void* fct) {
- raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
+ int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
MC_SET_RAW_MEM;
if(raw_mem_set)
MC_SET_RAW_MEM;
- else
- MC_UNSET_RAW_MEM;
}
-void MC_ignore_init(){
- MC_SET_RAW_MEM;
- mmalloc_ignore = xbt_dynar_new(sizeof(mc_ignore_region_t), NULL);
- MC_UNSET_RAW_MEM;
+/************ MC_ignore ***********/
+
+void heap_ignore_region_free(mc_heap_ignore_region_t r){
+ if(r)
+ xbt_free(r);
+}
+
+void heap_ignore_region_free_voidp(void *r){
+ heap_ignore_region_free((mc_heap_ignore_region_t) * (void **) r);
}
-void MC_ignore(void *address, size_t size){
+void MC_ignore_heap(void *address, size_t size){
+
+ int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
MC_SET_RAW_MEM;
+
+ if(mc_heap_comparison_ignore == NULL)
+ mc_heap_comparison_ignore = xbt_dynar_new(sizeof(mc_heap_ignore_region_t), heap_ignore_region_free_voidp);
- mc_ignore_region_t region = NULL;
- region = xbt_new0(s_mc_ignore_region_t, 1);
+ mc_heap_ignore_region_t region = NULL;
+ region = xbt_new0(s_mc_heap_ignore_region_t, 1);
region->address = address;
region->size = size;
- region->block = ((char*)address - (char*)((xbt_mheap_t)std_heap)->heapbase) / BLOCKSIZE + 1;
+ region->block = ((char*)address - (char*)((xbt_mheap_t)std_heap)->heapbase) / BLOCKSIZE + 1;
+
if(((xbt_mheap_t)std_heap)->heapinfo[region->block].type == 0){
region->fragment = -1;
+ ((xbt_mheap_t)std_heap)->heapinfo[region->block].busy_block.ignore = 1;
}else{
region->fragment = ((uintptr_t) (ADDR2UINT (address) % (BLOCKSIZE))) >> ((xbt_mheap_t)std_heap)->heapinfo[region->block].type;
+ ((xbt_mheap_t)std_heap)->heapinfo[region->block].busy_frag.ignore[region->fragment] = 1;
}
unsigned int cursor = 0;
- mc_ignore_region_t current_region;
- xbt_dynar_foreach(mmalloc_ignore, cursor, current_region){
+ mc_heap_ignore_region_t current_region;
+ xbt_dynar_foreach(mc_heap_comparison_ignore, cursor, current_region){
if(current_region->address > address)
break;
}
- xbt_dynar_insert_at(mmalloc_ignore, cursor, ®ion);
+ xbt_dynar_insert_at(mc_heap_comparison_ignore, cursor, ®ion);
+
+ MC_UNSET_RAW_MEM;
+
+ if(raw_mem_set)
+ MC_SET_RAW_MEM;
+}
+
+void MC_remove_ignore_heap(void *address, size_t size){
+
+ int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
+
+ MC_SET_RAW_MEM;
+
+ unsigned int cursor = 0;
+ int start = 0;
+ int end = xbt_dynar_length(mc_heap_comparison_ignore) - 1;
+ mc_heap_ignore_region_t region;
+ int ignore_found = 0;
+
+ while(start <= end){
+ cursor = (start + end) / 2;
+ region = (mc_heap_ignore_region_t)xbt_dynar_get_as(mc_heap_comparison_ignore, cursor, mc_heap_ignore_region_t);
+ if(region->address == address){
+ ignore_found = 1;
+ break;
+ }
+ if(region->address < address)
+ start = cursor + 1;
+ if(region->address > address){
+ if((char * )region->address <= ((char *)address + size)){
+ ignore_found = 1;
+ break;
+ }else
+ end = cursor - 1;
+ }
+ }
+
+ if(ignore_found == 1){
+ xbt_dynar_remove_at(mc_heap_comparison_ignore, cursor, NULL);
+ MC_remove_ignore_heap(address, size);
+ }
+
+ MC_UNSET_RAW_MEM;
+
+ if(raw_mem_set)
+ MC_SET_RAW_MEM;
+
+}
+
+void MC_ignore_data_bss(void *address, size_t size){
+
+ int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
+
+ MC_SET_RAW_MEM;
+
+ if(mc_data_bss_comparison_ignore == NULL)
+ mc_data_bss_comparison_ignore = xbt_dynar_new(sizeof(mc_data_bss_ignore_variable_t), NULL);
+
+ if(xbt_dynar_is_empty(mc_data_bss_comparison_ignore)){
+
+ mc_data_bss_ignore_variable_t var = NULL;
+ var = xbt_new0(s_mc_data_bss_ignore_variable_t, 1);
+ var->address = address;
+ var->size = size;
+
+ xbt_dynar_insert_at(mc_data_bss_comparison_ignore, 0, &var);
+
+ }else{
+
+ unsigned int cursor = 0;
+ int start = 0;
+ int end = xbt_dynar_length(mc_data_bss_comparison_ignore) - 1;
+ mc_data_bss_ignore_variable_t current_var = NULL;
+
+ while(start <= end){
+ cursor = (start + end) / 2;
+ current_var = (mc_data_bss_ignore_variable_t)xbt_dynar_get_as(mc_data_bss_comparison_ignore, cursor, mc_data_bss_ignore_variable_t);
+ if(current_var->address == address){
+ MC_UNSET_RAW_MEM;
+ if(raw_mem_set)
+ MC_SET_RAW_MEM;
+ return;
+ }
+ if(current_var->address < address)
+ start = cursor + 1;
+ if(current_var->address > address)
+ end = cursor - 1;
+ }
+
+ mc_data_bss_ignore_variable_t var = NULL;
+ var = xbt_new0(s_mc_data_bss_ignore_variable_t, 1);
+ var->address = address;
+ var->size = size;
+
+ if(current_var->address < address)
+ xbt_dynar_insert_at(mc_data_bss_comparison_ignore, cursor + 1, &var);
+ else
+ xbt_dynar_insert_at(mc_data_bss_comparison_ignore, cursor, &var);
+
+ }
+
+ MC_UNSET_RAW_MEM;
+
+ if(raw_mem_set)
+ MC_SET_RAW_MEM;
+}
+
+static size_t data_bss_ignore_size(void *address){
+ unsigned int cursor = 0;
+ int start = 0;
+ int end = xbt_dynar_length(mc_data_bss_comparison_ignore) - 1;
+ mc_data_bss_ignore_variable_t var;
+
+ while(start <= end){
+ cursor = (start + end) / 2;
+ var = (mc_data_bss_ignore_variable_t)xbt_dynar_get_as(mc_data_bss_comparison_ignore, cursor, mc_data_bss_ignore_variable_t);
+ if(var->address == address)
+ return var->size;
+ if(var->address < address){
+ if((void *)((char *)var->address + var->size) > address)
+ return (char *)var->address + var->size - (char*)address;
+ else
+ start = cursor + 1;
+ }
+ if(var->address > address)
+ end = cursor - 1;
+ }
+
+ return 0;
+}
+
+
+
+void MC_ignore_stack(const char *var_name, const char *frame){
+
+ int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
+
+ MC_SET_RAW_MEM;
+
+ if(mc_stack_comparison_ignore == NULL)
+ mc_stack_comparison_ignore = xbt_dynar_new(sizeof(mc_stack_ignore_variable_t), NULL);
+
+ if(xbt_dynar_is_empty(mc_stack_comparison_ignore)){
+
+ mc_stack_ignore_variable_t var = NULL;
+ var = xbt_new0(s_mc_stack_ignore_variable_t, 1);
+ var->var_name = strdup(var_name);
+ var->frame = strdup(frame);
+
+ xbt_dynar_insert_at(mc_stack_comparison_ignore, 0, &var);
+
+ }else{
+
+ unsigned int cursor = 0;
+ int start = 0;
+ int end = xbt_dynar_length(mc_stack_comparison_ignore) - 1;
+ mc_stack_ignore_variable_t current_var = NULL;
+
+ while(start <= end){
+ cursor = (start + end) / 2;
+ current_var = (mc_stack_ignore_variable_t)xbt_dynar_get_as(mc_stack_comparison_ignore, cursor, mc_stack_ignore_variable_t);
+ if(strcmp(current_var->frame, frame) == 0){
+ if(strcmp(current_var->var_name, var_name) == 0){
+ MC_UNSET_RAW_MEM;
+ if(raw_mem_set)
+ MC_SET_RAW_MEM;
+ return;
+ }
+ if(strcmp(current_var->var_name, var_name) < 0)
+ start = cursor + 1;
+ if(strcmp(current_var->var_name, var_name) > 0)
+ end = cursor - 1;
+ }
+ if(strcmp(current_var->frame, frame) < 0)
+ start = cursor + 1;
+ if(strcmp(current_var->frame, frame) > 0)
+ end = cursor - 1;
+ }
+
+ mc_stack_ignore_variable_t var = NULL;
+ var = xbt_new0(s_mc_stack_ignore_variable_t, 1);
+ var->var_name = strdup(var_name);
+ var->frame = strdup(frame);
+
+ if(strcmp(current_var->frame, frame) < 0)
+ xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor + 1, &var);
+ else
+ xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor, &var);
+
+ }
+
+ MC_UNSET_RAW_MEM;
+
+ if(raw_mem_set)
+ MC_SET_RAW_MEM;
+
+}
+void MC_new_stack_area(void *stack, char *name, void* context, size_t size){
+
+ int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
+
+ MC_SET_RAW_MEM;
+ if(stacks_areas == NULL)
+ stacks_areas = xbt_dynar_new(sizeof(stack_region_t), NULL);
+
+ stack_region_t region = NULL;
+ region = xbt_new0(s_stack_region_t, 1);
+ region->address = stack;
+ region->process_name = strdup(name);
+ region->context = context;
+ region->size = size;
+ region->block = ((char*)stack - (char*)((xbt_mheap_t)std_heap)->heapbase) / BLOCKSIZE + 1;
+ xbt_dynar_push(stacks_areas, ®ion);
+
MC_UNSET_RAW_MEM;
+
+ if(raw_mem_set)
+ MC_SET_RAW_MEM;
+}
+
+/************ DWARF ***********/
+
+xbt_dict_t MC_get_location_list(const char *elf_file){
+
+ char *command = bprintf("objdump -Wo %s", elf_file);
+
+ FILE *fp = popen(command, "r");
+
+ if(fp == NULL){
+ perror("popen for objdump failed");
+ xbt_abort();
+ }
+
+ int debug = 0; /*Detect if the program has been compiled with -g */
+
+ xbt_dict_t location_list = xbt_dict_new_homogeneous(NULL);
+ char *line = NULL, *loc_expr = NULL;
+ ssize_t read;
+ size_t n = 0;
+ int cursor_remove;
+ xbt_dynar_t split = NULL;
+
+ while ((read = getline(&line, &n, fp)) != -1) {
+
+ /* Wipeout the new line character */
+ line[read - 1] = '\0';
+
+ xbt_str_trim(line, NULL);
+
+ if(n == 0)
+ continue;
+
+ if(strlen(line) == 0)
+ continue;
+
+ if(debug == 0){
+
+ if(strncmp(line, elf_file, strlen(elf_file)) == 0)
+ continue;
+
+ if(strncmp(line, "Contents", 8) == 0)
+ continue;
+
+ if(strncmp(line, "Offset", 6) == 0){
+ debug = 1;
+ continue;
+ }
+ }
+
+ if(debug == 0){
+ XBT_INFO("Your program must be compiled with -g");
+ xbt_abort();
+ }
+
+ xbt_dynar_t loclist = xbt_dynar_new(sizeof(dw_location_entry_t), NULL);
+
+ xbt_str_strip_spaces(line);
+ split = xbt_str_split(line, " ");
+
+ while(read != -1 && strcmp("<End", (char *)xbt_dynar_get_as(split, 1, char *)) != 0){
+
+ dw_location_entry_t new_entry = xbt_new0(s_dw_location_entry_t, 1);
+ new_entry->lowpc = strtoul((char *)xbt_dynar_get_as(split, 1, char *), NULL, 16);
+ new_entry->highpc = strtoul((char *)xbt_dynar_get_as(split, 2, char *), NULL, 16);
+
+ cursor_remove =0;
+ while(cursor_remove < 3){
+ xbt_dynar_remove_at(split, 0, NULL);
+ cursor_remove++;
+ }
+
+ loc_expr = xbt_str_join(split, " ");
+ xbt_str_ltrim(loc_expr, "(");
+ xbt_str_rtrim(loc_expr, ")");
+ new_entry->location = get_location(NULL, loc_expr);
+
+ xbt_dynar_push(loclist, &new_entry);
+
+ xbt_dynar_free(&split);
+ free(loc_expr);
+
+ read = getline(&line, &n, fp);
+ if(read != -1){
+ line[read - 1] = '\0';
+ xbt_str_strip_spaces(line);
+ split = xbt_str_split(line, " ");
+ }
+
+ }
+
+
+ char *key = bprintf("%d", (int)strtoul((char *)xbt_dynar_get_as(split, 0, char *), NULL, 16));
+ xbt_dict_set(location_list, key, loclist, NULL);
+ xbt_free(key);
+
+ xbt_dynar_free(&split);
+
+ }
+
+ xbt_free(line);
+ xbt_free(command);
+ pclose(fp);
+
+ return location_list;
+}
+
+static dw_frame_t get_frame_by_offset(xbt_dict_t all_variables, unsigned long int offset){
+
+ xbt_dict_cursor_t cursor = NULL;
+ char *name;
+ dw_frame_t res;
+
+ xbt_dict_foreach(all_variables, cursor, name, res) {
+ if(offset >= res->start && offset < res->end){
+ xbt_dict_cursor_free(&cursor);
+ return res;
+ }
+ }
+
+ xbt_dict_cursor_free(&cursor);
+ return NULL;
+
+}
+
+void MC_get_local_variables(const char *elf_file, xbt_dict_t location_list, xbt_dict_t *all_variables){
+
+ char *command = bprintf("objdump -Wi %s", elf_file);
+
+ FILE *fp = popen(command, "r");
+
+ if(fp == NULL)
+ perror("popen for objdump failed");
+
+ char *line = NULL, *origin, *abstract_origin, *current_frame = NULL;
+ ssize_t read =0;
+ size_t n = 0;
+ int valid_variable = 1;
+ char *node_type = NULL, *location_type = NULL, *variable_name = NULL, *loc_expr = NULL;
+ xbt_dynar_t split = NULL, split2 = NULL;
+
+ xbt_dict_t variables_origin = xbt_dict_new_homogeneous(NULL);
+ xbt_dict_t subprograms_origin = xbt_dict_new_homogeneous(NULL);
+ char *subprogram_name = NULL, *subprogram_start = NULL, *subprogram_end = NULL;
+ int new_frame = 0, new_variable = 0;
+ dw_frame_t variable_frame, subroutine_frame = NULL;
+
+ read = getline(&line, &n, fp);
+
+ while (read != -1) {
+
+ if(n == 0){
+ read = getline(&line, &n, fp);
+ continue;
+ }
+
+ /* Wipeout the new line character */
+ line[read - 1] = '\0';
+
+ if(strlen(line) == 0){
+ read = getline(&line, &n, fp);
+ continue;
+ }
+
+ xbt_str_ltrim(line, NULL);
+ xbt_str_strip_spaces(line);
+
+ if(line[0] != '<'){
+ read = getline(&line, &n, fp);
+ continue;
+ }
+
+ xbt_dynar_free(&split);
+ split = xbt_str_split(line, " ");
+
+ /* Get node type */
+ node_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
+
+ if(strcmp(node_type, "(DW_TAG_subprogram)") == 0){ /* New frame */
+
+ dw_frame_t frame = NULL;
+
+ strtok(xbt_dynar_get_as(split, 0, char *), "<");
+ subprogram_start = strdup(strtok(NULL, "<"));
+ xbt_str_rtrim(subprogram_start, ">:");
+
+ read = getline(&line, &n, fp);
+
+ while(read != -1){
+
+ if(n == 0){
+ read = getline(&line, &n, fp);
+ continue;
+ }
+
+ /* Wipeout the new line character */
+ line[read - 1] = '\0';
+
+ if(strlen(line) == 0){
+ read = getline(&line, &n, fp);
+ continue;
+ }
+
+ xbt_dynar_free(&split);
+ xbt_str_rtrim(line, NULL);
+ xbt_str_strip_spaces(line);
+ split = xbt_str_split(line, " ");
+
+ node_type = xbt_dynar_get_as(split, 1, char *);
+
+ if(strncmp(node_type, "DW_AT_", 6) != 0)
+ break;
+
+ if(strcmp(node_type, "DW_AT_sibling") == 0){
+
+ subprogram_end = strdup(xbt_dynar_get_as(split, 3, char*));
+ xbt_str_ltrim(subprogram_end, "<0x");
+ xbt_str_rtrim(subprogram_end, ">");
+
+ }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){ /* Frame already in dict */
+
+ new_frame = 0;
+ abstract_origin = strdup(xbt_dynar_get_as(split, 2, char*));
+ xbt_str_ltrim(abstract_origin, "<0x");
+ xbt_str_rtrim(abstract_origin, ">");
+ subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, abstract_origin);
+ frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
+ xbt_free(abstract_origin);
+
+ }else if(strcmp(node_type, "DW_AT_name") == 0){
+
+ new_frame = 1;
+ xbt_free(current_frame);
+ frame = xbt_new0(s_dw_frame_t, 1);
+ frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
+ frame->variables = xbt_dict_new_homogeneous(NULL);
+ frame->frame_base = xbt_new0(s_dw_location_t, 1);
+ current_frame = strdup(frame->name);
+
+ xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
+
+ }else if(strcmp(node_type, "DW_AT_frame_base") == 0){
+
+ location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
+
+ if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
+
+ frame->frame_base = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
+
+ }else{
+
+ xbt_str_strip_spaces(line);
+ split2 = xbt_str_split(line, "(");
+ xbt_dynar_remove_at(split2, 0, NULL);
+ loc_expr = xbt_str_join(split2, " ");
+ xbt_str_rtrim(loc_expr, ")");
+ frame->frame_base = get_location(NULL, loc_expr);
+ xbt_dynar_free(&split2);
+ xbt_free(loc_expr);
+
+ }
+
+ }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
+
+ if(frame != NULL)
+ frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
+
+ }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
+
+ if(frame != NULL)
+ frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
+
+ }else if(strcmp(node_type, "DW_AT_MIPS_linkage_name:") == 0){
+
+ xbt_free(frame->name);
+ xbt_free(current_frame);
+ frame->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
+ current_frame = strdup(frame->name);
+ xbt_dict_set(subprograms_origin, subprogram_start, frame->name, NULL);
+
+ }
+
+ read = getline(&line, &n, fp);
+
+ }
+
+ if(new_frame == 1){
+ frame->start = strtoul(subprogram_start, NULL, 16);
+ if(subprogram_end != NULL)
+ frame->end = strtoul(subprogram_end, NULL, 16);
+ xbt_dict_set(*all_variables, frame->name, frame, NULL);
+ }
+
+ xbt_free(subprogram_start);
+ if(subprogram_end != NULL){
+ xbt_free(subprogram_end);
+ subprogram_end = NULL;
+ }
+
+
+ }else if(strcmp(node_type, "(DW_TAG_variable)") == 0){ /* New variable */
+
+ dw_local_variable_t var = NULL;
+
+ strtok(xbt_dynar_get_as(split, 0, char *), "<");
+ origin = strdup(strtok(NULL, "<"));
+ xbt_str_rtrim(origin, ">:");
+
+ read = getline(&line, &n, fp);
+
+ while(read != -1){
+
+ if(n == 0){
+ read = getline(&line, &n, fp);
+ continue;
+ }
+
+ /* Wipeout the new line character */
+ line[read - 1] = '\0';
+
+ if(strlen(line) == 0){
+ read = getline(&line, &n, fp);
+ continue;
+ }
+
+ xbt_dynar_free(&split);
+ xbt_str_rtrim(line, NULL);
+ xbt_str_strip_spaces(line);
+ split = xbt_str_split(line, " ");
+
+ node_type = xbt_dynar_get_as(split, 1, char *);
+
+ if(strncmp(node_type, "DW_AT_", 6) != 0)
+ break;
+
+ if(strcmp(node_type, "DW_AT_name") == 0){
+
+ new_variable = 1;
+ var = xbt_new0(s_dw_local_variable_t, 1);
+ var->name = strdup(xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *));
+
+ xbt_dict_set(variables_origin, origin, var->name, NULL);
+
+ }else if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
+
+ new_variable = 0;
+ abstract_origin = xbt_dynar_get_as(split, 2, char *);
+ xbt_str_ltrim(abstract_origin, "<0x");
+ xbt_str_rtrim(abstract_origin, ">");
+
+ variable_name = (char *)xbt_dict_get_or_null(variables_origin, abstract_origin);
+ variable_frame = get_frame_by_offset(*all_variables, strtoul(abstract_origin, NULL, 16));
+ var = xbt_dict_get_or_null(variable_frame->variables, variable_name);
+
+ }else if(strcmp(node_type, "DW_AT_location") == 0){
+
+ if(valid_variable == 1 && var != NULL){
+
+ var->location = xbt_new0(s_dw_location_t, 1);
+
+ location_type = xbt_dynar_get_as(split, xbt_dynar_length(split) - 1, char *);
+
+ if(strcmp(location_type, "list)") == 0){ /* Search location in location list */
+
+ var->location = get_location(location_list, xbt_dynar_get_as(split, 3, char *));
+
+ }else{
+
+ xbt_str_strip_spaces(line);
+ split2 = xbt_str_split(line, "(");
+ xbt_dynar_remove_at(split2, 0, NULL);
+ loc_expr = xbt_str_join(split2, " ");
+ xbt_str_rtrim(loc_expr, ")");
+ var->location = get_location(NULL, loc_expr);
+ xbt_dynar_free(&split2);
+ xbt_free(loc_expr);
+
+ }
+
+ }
+
+ }else if(strcmp(node_type, "DW_AT_external") == 0){
+
+ valid_variable = 0;
+
+ }
+
+ read = getline(&line, &n, fp);
+
+ }
+
+ if(new_variable == 1 && valid_variable == 1){
+
+ variable_frame = xbt_dict_get_or_null(*all_variables, current_frame);
+ xbt_dict_set(variable_frame->variables, var->name, var, NULL);
+ }
+
+ valid_variable = 1;
+ new_variable = 0;
+
+ }else if(strcmp(node_type, "(DW_TAG_inlined_subroutine)") == 0){
+
+ strtok(xbt_dynar_get_as(split, 0, char *), "<");
+ origin = strdup(strtok(NULL, "<"));
+ xbt_str_rtrim(origin, ">:");
+
+ read = getline(&line, &n, fp);
+
+ while(read != -1){
+
+ /* Wipeout the new line character */
+ line[read - 1] = '\0';
+
+ if(n == 0){
+ read = getline(&line, &n, fp);
+ continue;
+ }
+
+ if(strlen(line) == 0){
+ read = getline(&line, &n, fp);
+ continue;
+ }
+
+ xbt_dynar_free(&split);
+ xbt_str_rtrim(line, NULL);
+ xbt_str_strip_spaces(line);
+ split = xbt_str_split(line, " ");
+
+ if(strncmp(xbt_dynar_get_as(split, 1, char *), "DW_AT_", 6) != 0)
+ break;
+
+ node_type = xbt_dynar_get_as(split, 1, char *);
+
+ if(strcmp(node_type, "DW_AT_abstract_origin:") == 0){
+
+ origin = xbt_dynar_get_as(split, 2, char *);
+ xbt_str_ltrim(origin, "<0x");
+ xbt_str_rtrim(origin, ">");
+
+ subprogram_name = (char *)xbt_dict_get_or_null(subprograms_origin, origin);
+ subroutine_frame = xbt_dict_get_or_null(*all_variables, subprogram_name);
+
+ }else if(strcmp(node_type, "DW_AT_low_pc") == 0){
+
+ subroutine_frame->low_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
+
+ }else if(strcmp(node_type, "DW_AT_high_pc") == 0){
+
+ subroutine_frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16);
+ }
+
+ read = getline(&line, &n, fp);
+
+ }
+
+ }else{
+
+ read = getline(&line, &n, fp);
+
+ }
+
+ }
+
+ xbt_dynar_free(&split);
+ xbt_free(line);
+ xbt_free(command);
+ pclose(fp);
+
+}
+
+static dw_location_t get_location(xbt_dict_t location_list, char *expr){
+
+ dw_location_t loc = xbt_new0(s_dw_location_t, 1);
+
+ if(location_list != NULL){
+
+ char *key = bprintf("%d", (int)strtoul(expr, NULL, 16));
+ loc->type = e_dw_loclist;
+ loc->location.loclist = (xbt_dynar_t)xbt_dict_get_or_null(location_list, key);
+ if(loc->location.loclist == NULL)
+ XBT_INFO("Key not found in loclist");
+ xbt_free(key);
+ return loc;
+
+ }else{
+
+ int cursor = 0;
+ char *tok = NULL, *tok2 = NULL;
+
+ xbt_dynar_t tokens1 = xbt_str_split(expr, ";");
+ xbt_dynar_t tokens2;
+
+ loc->type = e_dw_compose;
+ loc->location.compose = xbt_dynar_new(sizeof(dw_location_t), NULL);
+
+ while(cursor < xbt_dynar_length(tokens1)){
+
+ tok = xbt_dynar_get_as(tokens1, cursor, char*);
+ tokens2 = xbt_str_split(tok, " ");
+ tok2 = xbt_dynar_get_as(tokens2, 0, char*);
+
+ if(strncmp(tok2, "DW_OP_reg", 9) == 0){
+ dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
+ new_element->type = e_dw_register;
+ new_element->location.reg = atoi(strtok(tok2, "DW_OP_reg"));
+ xbt_dynar_push(loc->location.compose, &new_element);
+ }else if(strcmp(tok2, "DW_OP_fbreg:") == 0){
+ dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
+ new_element->type = e_dw_fbregister_op;
+ new_element->location.fbreg_op = atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*));
+ xbt_dynar_push(loc->location.compose, &new_element);
+ }else if(strncmp(tok2, "DW_OP_breg", 10) == 0){
+ dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
+ new_element->type = e_dw_bregister_op;
+ new_element->location.breg_op.reg = atoi(strtok(tok2, "DW_OP_breg"));
+ new_element->location.breg_op.offset = atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*));
+ xbt_dynar_push(loc->location.compose, &new_element);
+ }else if(strncmp(tok2, "DW_OP_lit", 9) == 0){
+ dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
+ new_element->type = e_dw_lit;
+ new_element->location.lit = atoi(strtok(tok2, "DW_OP_lit"));
+ xbt_dynar_push(loc->location.compose, &new_element);
+ }else if(strcmp(tok2, "DW_OP_piece:") == 0){
+ dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
+ new_element->type = e_dw_piece;
+ new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*));
+ /*if(strlen(xbt_dynar_get_as(tokens2, 1, char*)) > 1)
+ new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, 1, char*));
+ else
+ new_element->location.piece = xbt_dynar_get_as(tokens2, 1, char*)[0] - '0';*/
+ xbt_dynar_push(loc->location.compose, &new_element);
+ }else if(strcmp(tok2, "DW_OP_plus_uconst:") == 0){
+ dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
+ new_element->type = e_dw_plus_uconst;
+ new_element->location.plus_uconst = atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char *));
+ xbt_dynar_push(loc->location.compose, &new_element);
+ }else if(strcmp(tok, "DW_OP_abs") == 0 ||
+ strcmp(tok, "DW_OP_and") == 0 ||
+ strcmp(tok, "DW_OP_div") == 0 ||
+ strcmp(tok, "DW_OP_minus") == 0 ||
+ strcmp(tok, "DW_OP_mod") == 0 ||
+ strcmp(tok, "DW_OP_mul") == 0 ||
+ strcmp(tok, "DW_OP_neg") == 0 ||
+ strcmp(tok, "DW_OP_not") == 0 ||
+ strcmp(tok, "DW_OP_or") == 0 ||
+ strcmp(tok, "DW_OP_plus") == 0){
+ dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
+ new_element->type = e_dw_arithmetic;
+ new_element->location.arithmetic = strdup(strtok(tok2, "DW_OP_"));
+ xbt_dynar_push(loc->location.compose, &new_element);
+ }else if(strcmp(tok, "DW_OP_stack_value") == 0){
+ }else if(strcmp(tok2, "DW_OP_deref_size:") == 0){
+ dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
+ new_element->type = e_dw_deref;
+ new_element->location.deref_size = (unsigned int short) atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*));
+ /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
+ new_element->location.deref_size = atoi(xbt_dynar_get_as(tokens, cursor, char*));
+ else
+ new_element->location.deref_size = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
+ xbt_dynar_push(loc->location.compose, &new_element);
+ }else if(strcmp(tok, "DW_OP_deref") == 0){
+ dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
+ new_element->type = e_dw_deref;
+ new_element->location.deref_size = sizeof(void *);
+ xbt_dynar_push(loc->location.compose, &new_element);
+ }else if(strcmp(tok2, "DW_OP_constu:") == 0){
+ dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
+ new_element->type = e_dw_uconstant;
+ new_element->location.uconstant.bytes = 1;
+ new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*)));
+ /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
+ new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens, cursor, char*)));
+ else
+ new_element->location.uconstant.value = (unsigned long int)(xbt_dynar_get_as(tokens, cursor, char*)[0] - '0');*/
+ xbt_dynar_push(loc->location.compose, &new_element);
+ }else if(strcmp(tok2, "DW_OP_consts:") == 0){
+ dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
+ new_element->type = e_dw_sconstant;
+ new_element->location.sconstant.bytes = 1;
+ new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*)));
+ xbt_dynar_push(loc->location.compose, &new_element);
+ }else if(strcmp(tok2, "DW_OP_const1u:") == 0 ||
+ strcmp(tok2, "DW_OP_const2u:") == 0 ||
+ strcmp(tok2, "DW_OP_const4u:") == 0 ||
+ strcmp(tok2, "DW_OP_const8u:") == 0){
+ dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
+ new_element->type = e_dw_uconstant;
+ new_element->location.uconstant.bytes = tok2[11] - '0';
+ new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*)));
+ /*if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1)
+ new_element->location.constant.value = atoi(xbt_dynar_get_as(tokens, cursor, char*));
+ else
+ new_element->location.constant.value = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0';*/
+ xbt_dynar_push(loc->location.compose, &new_element);
+ }else if(strcmp(tok, "DW_OP_const1s") == 0 ||
+ strcmp(tok, "DW_OP_const2s") == 0 ||
+ strcmp(tok, "DW_OP_const4s") == 0 ||
+ strcmp(tok, "DW_OP_const8s") == 0){
+ dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
+ new_element->type = e_dw_sconstant;
+ new_element->location.sconstant.bytes = tok2[11] - '0';
+ new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*)));
+ xbt_dynar_push(loc->location.compose, &new_element);
+ }else{
+ dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
+ new_element->type = e_dw_unsupported;
+ xbt_dynar_push(loc->location.compose, &new_element);
+ }
+
+ cursor++;
+ xbt_dynar_free(&tokens2);
+
+ }
+
+ xbt_dynar_free(&tokens1);
+
+ return loc;
+
+ }
+
+}
+
+
+void print_local_variables(xbt_dict_t list){
+
+ dw_location_entry_t entry;
+ dw_location_t location_entry;
+ unsigned int cursor3 = 0, cursor4 = 0;
+ xbt_dict_cursor_t cursor = 0, cursor2 = 0;
+
+ char *frame_name, *variable_name;
+ dw_frame_t current_frame;
+ dw_local_variable_t current_variable;
+
+ xbt_dict_foreach(list, cursor, frame_name, current_frame){
+ fprintf(stderr, "Frame name : %s\n", current_frame->name);
+ fprintf(stderr, "Location type : %d\n", current_frame->frame_base->type);
+ xbt_dict_foreach((xbt_dict_t)current_frame->variables, cursor2, variable_name, current_variable){
+ fprintf(stderr, "Name : %s\n", current_variable->name);
+ if(current_variable->location == NULL)
+ continue;
+ fprintf(stderr, "Location type : %d\n", current_variable->location->type);
+ switch(current_variable->location->type){
+ case e_dw_loclist :
+ xbt_dynar_foreach(current_variable->location->location.loclist, cursor3, entry){
+ fprintf(stderr, "Lowpc : %lx, Highpc : %lx,", entry->lowpc, entry->highpc);
+ switch(entry->location->type){
+ case e_dw_register :
+ fprintf(stderr, " Location : in register %d\n", entry->location->location.reg);
+ break;
+ case e_dw_bregister_op:
+ fprintf(stderr, " Location : Add %d to the value in register %d\n", entry->location->location.breg_op.offset, entry->location->location.breg_op.reg);
+ break;
+ case e_dw_lit:
+ fprintf(stderr, "Value already kwnown : %d\n", entry->location->location.lit);
+ break;
+ case e_dw_fbregister_op:
+ fprintf(stderr, " Location : %d bytes from logical frame pointer\n", entry->location->location.fbreg_op);
+ break;
+ case e_dw_compose:
+ fprintf(stderr, " Location :\n");
+ xbt_dynar_foreach(entry->location->location.compose, cursor4, location_entry){
+ switch(location_entry->type){
+ case e_dw_register :
+ fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
+ break;
+ case e_dw_bregister_op:
+ 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);
+ break;
+ case e_dw_lit:
+ fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
+ break;
+ case e_dw_fbregister_op:
+ fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
+ break;
+ case e_dw_deref:
+ 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);
+ break;
+ case e_dw_arithmetic :
+ fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
+ break;
+ case e_dw_piece:
+ fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
+ break;
+ case e_dw_uconstant :
+ fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
+ break;
+ case e_dw_sconstant :
+ fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
+ break;
+ default :
+ fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
+ break;
+ }
+ }
+ break;
+ default:
+ fprintf(stderr, "Location type not supported\n");
+ break;
+ }
+ }
+ break;
+ case e_dw_compose:
+ cursor4 = 0;
+ fprintf(stderr, "Location :\n");
+ xbt_dynar_foreach(current_variable->location->location.compose, cursor4, location_entry){
+ switch(location_entry->type){
+ case e_dw_register :
+ fprintf(stderr, " %d) in register %d\n", cursor4 + 1, location_entry->location.reg);
+ break;
+ case e_dw_bregister_op:
+ 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);
+ break;
+ case e_dw_lit:
+ fprintf(stderr, "%d) Value already kwnown : %d\n", cursor4 + 1, location_entry->location.lit);
+ break;
+ case e_dw_fbregister_op:
+ fprintf(stderr, " %d) %d bytes from logical frame pointer\n", cursor4 + 1, location_entry->location.fbreg_op);
+ break;
+ case e_dw_deref:
+ 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);
+ break;
+ case e_dw_arithmetic :
+ fprintf(stderr, "%d) arithmetic operation : %s\n", cursor4 + 1, location_entry->location.arithmetic);
+ break;
+ case e_dw_piece:
+ fprintf(stderr, "%d) The %d byte(s) previous value\n", cursor4 + 1, location_entry->location.piece);
+ break;
+ case e_dw_uconstant :
+ fprintf(stderr, "%d) Unsigned constant %lu\n", cursor4 + 1, location_entry->location.uconstant.value);
+ break;
+ case e_dw_sconstant :
+ fprintf(stderr, "%d) Signed constant %lu\n", cursor4 + 1, location_entry->location.sconstant.value);
+ break;
+ default :
+ fprintf(stderr, "%d) Location type not supported\n", cursor4 + 1);
+ break;
+ }
+ }
+ break;
+ default :
+ fprintf(stderr, "Location type not supported\n");
+ break;
+ }
+ }
+ }
+
+}
+
+static void MC_get_global_variables(char *elf_file){
+
+ FILE *fp;
+
+ char *command = bprintf("objdump -t -j .data -j .bss %s", elf_file);
+
+ fp = popen(command, "r");
+
+ if(fp == NULL){
+ perror("popen failed");
+ xbt_abort();
+ }
+
+ if(mc_global_variables == NULL)
+ mc_global_variables = xbt_dynar_new(sizeof(global_variable_t), global_variable_free_voidp);
+
+ char *line = NULL;
+ ssize_t read;
+ size_t n = 0;
+
+ xbt_dynar_t line_tokens = NULL;
+ unsigned long offset;
+
+ int type = strcmp(elf_file, xbt_binary_name); /* 0 = binary, other = libsimgrid */
+
+ while ((read = getline(&line, &n, fp)) != -1){
+
+ if(n == 0)
+ continue;
+
+ /* Wipeout the new line character */
+ line[read - 1] = '\0';
+
+ xbt_str_strip_spaces(line);
+ xbt_str_ltrim(line, NULL);
+
+ line_tokens = xbt_str_split(line, NULL);
+
+ if(xbt_dynar_length(line_tokens) <= 4 || strcmp(xbt_dynar_get_as(line_tokens, 0, char *), "SYMBOL") == 0)
+ continue;
+
+ if((strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "__gcov", 6) == 0)
+ || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "gcov", 4) == 0)
+ || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), ".data") == 0)
+ || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), ".bss") == 0)
+ || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "stderr", 6) == 0)
+ || (strncmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "counter", 7) == 0)
+ || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "heapinfo1") == 0)
+ || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "heapinfo2") == 0)
+ || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "heapbase1") == 0)
+ || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "heapbase2") == 0)
+ || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "heapsize1") == 0)
+ || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "heapsize2") == 0)
+ || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "heaplimit") == 0)
+ || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "ignore_done") == 0)
+ || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "s_heap") == 0)
+ || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "to_ignore1") == 0)
+ || (strcmp(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*), "to_ignore2") == 0)
+ || ((size_t)strtoul(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 2, char*), NULL, 16) == 0))
+ continue;
+
+ global_variable_t var = xbt_new0(s_global_variable_t, 1);
+
+ if(type == 0){
+ var->address = (void *)strtoul(xbt_dynar_get_as(line_tokens, 0, char*), NULL, 16);
+ }else{
+ offset = strtoul(xbt_dynar_get_as(line_tokens, 0, char*), NULL, 16);
+ var->address = (char *)start_text_libsimgrid+offset;
+ }
+
+ var->size = (size_t)strtoul(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 2, char*), NULL, 16);
+ var->name = strdup(xbt_dynar_get_as(line_tokens, xbt_dynar_length(line_tokens) - 1, char*));
+
+ if(data_bss_ignore_size(var->address) > 0)
+ global_variable_free(var);
+ else
+ xbt_dynar_push(mc_global_variables, &var);
+
+ xbt_dynar_free(&line_tokens);
+
+ }
+
+ xbt_free(command);
+ xbt_free(line);
+ pclose(fp);
+
+}
+
+void global_variable_free(global_variable_t v){
+ xbt_free(v->name);
+ xbt_free(v);
+}
+
+void global_variable_free_voidp(void *v){
+ global_variable_free((global_variable_t) * (void **) v);
}
