X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/7b784c47bdc7fd9521ab151e654c0260dca7f2b3..41d5f3c8a30bf77b309143b174ea5a616b24c5c2:/src/mc/mc_global.c diff --git a/src/mc/mc_global.c b/src/mc/mc_global.c index 28a5c4e261..f226c9cfe5 100644 --- a/src/mc/mc_global.c +++ b/src/mc/mc_global.c @@ -8,6 +8,7 @@ #include #include +#include "simgrid/sg_config.h" #include "../surf/surf_private.h" #include "../simix/smx_private.h" #include "../xbt/mmalloc/mmprivate.h" @@ -23,13 +24,19 @@ XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_global, mc, /* Configuration support */ e_mc_reduce_t mc_reduce_kind=e_mc_reduce_unset; +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 _surf_init_status; +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")) { @@ -37,22 +44,40 @@ void _mc_cfg_cb_reduce(const char *name, int pos) { } 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); } @@ -61,26 +86,31 @@ void _mc_cfg_cb_property(const char *name, int pos) { 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; /* Local */ xbt_dict_t mc_local_variables = NULL; +/* Global */ +xbt_dynar_t mc_global_variables = NULL; /* Ignore mechanism */ -extern xbt_dynar_t mc_comparison_ignore; +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; @@ -90,138 +120,168 @@ xbt_automaton_t _mc_property_automaton = NULL; 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; +} - /* Check if MC is already initialized */ - if (initial_snapshot) - return; +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; istate_size = 1; + MC_init_memory_map_info(); + + mc_local_variables = xbt_dict_new_homogeneous(NULL); - /* Create exploration stack */ - mc_stack_safety = xbt_fifo_new(); + /* 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); - MC_UNSET_RAW_MEM; + /* 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); - MC_dpor_init(); + 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(); + + /* Get global variables */ + MC_get_global_variables(xbt_binary_name); + MC_get_global_variables(libsimgrid_path); - MC_SET_RAW_MEM; - /* Save the initial state */ - initial_snapshot = xbt_new0(s_mc_snapshot_t, 1); - MC_take_snapshot(initial_snapshot); 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"); + + MC_ignore_data_bss(&mc_comp_times, sizeof(mc_comp_times)); + MC_ignore_data_bss(&mc_snapshot_comparison_time, sizeof(mc_snapshot_comparison_time)); + if(raw_mem_set) MC_SET_RAW_MEM; - -} -void MC_compare(void){ - compare = 1; } - -void MC_modelcheck(void) +void MC_modelcheck_safety(void) { - MC_init_safety(); - MC_dpor(); - MC_exit(); -} + int raw_mem_set = (mmalloc_get_current_heap() == raw_heap); -void MC_init_liveness(){ + /* Check if MC is already initialized */ + if (initial_state_safety) + return; - 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; istate_size = 1; - /* Get local variables in libsimgrid for state equality detection */ - xbt_dict_t libsimgrid_location_list = MC_get_location_list(ls_path); - MC_get_local_variables(ls_path, libsimgrid_location_list, &mc_local_variables); + /* Create exploration stack */ + mc_stack_safety = xbt_fifo_new(); MC_UNSET_RAW_MEM; - MC_init_memory_map_info(); + 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; + } - /* Get .plt section (start and end addresses) for data libsimgrid and data program comparison */ - get_libsimgrid_plt_section(); - get_binary_plt_section(); + MC_dpor_init(); + + MC_SET_RAW_MEM; + /* Save the initial state */ + 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; + MC_exit(); } void MC_modelcheck_liveness(){ - raw_mem_set = (mmalloc_get_current_heap() == raw_heap); + int raw_mem_set = (mmalloc_get_current_heap() == raw_heap); - MC_init_liveness(); + 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(); + initial_state_liveness = xbt_new0(s_mc_global_t, 1); + MC_UNSET_RAW_MEM; MC_ddfs_init(); @@ -230,14 +290,17 @@ void MC_modelcheck_liveness(){ MC_print_statistics_pairs(mc_stats_pair); xbt_free(mc_time); + 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(); } @@ -291,7 +354,7 @@ int MC_deadlock_check() */ 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; @@ -303,7 +366,7 @@ void MC_replay(xbt_fifo_t stack, int start) 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; @@ -347,7 +410,7 @@ void MC_replay(xbt_fifo_t stack, int start) } XBT_DEBUG("**** End Replay ****"); - if(raw_mem_set) + if(raw_mem) MC_SET_RAW_MEM; else MC_UNSET_RAW_MEM; @@ -358,7 +421,7 @@ void MC_replay(xbt_fifo_t stack, int start) 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; @@ -371,10 +434,12 @@ void MC_replay_liveness(xbt_fifo_t stack, int all_stack) 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){ @@ -460,7 +525,7 @@ void MC_replay_liveness(xbt_fifo_t stack, int 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; @@ -475,11 +540,11 @@ void MC_replay_liveness(xbt_fifo_t stack, int all_stack) 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; @@ -558,7 +623,7 @@ void MC_show_stack_liveness(xbt_fifo_t stack){ 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; @@ -592,8 +657,9 @@ void MC_print_statistics_pairs(mc_stats_pair_t stats) //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) @@ -641,7 +707,7 @@ double MC_process_clock_get(smx_process_t process) 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; @@ -659,7 +725,7 @@ void MC_automaton_load(const char *file){ 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; @@ -677,40 +743,190 @@ void MC_automaton_new_propositional_symbol(const char* id, void* fct) { /************ MC_ignore ***********/ -void MC_ignore(void *address, size_t size){ +void heap_ignore_region_free(mc_heap_ignore_region_t r){ + xbt_free(r); +} - raw_mem_set = (mmalloc_get_current_heap() == raw_heap); +void heap_ignore_region_free_voidp(void *r){ + heap_ignore_region_free((mc_heap_ignore_region_t) * (void **) r); +} + +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_comparison_ignore == NULL) - mc_comparison_ignore = xbt_dynar_new(sizeof(mc_ignore_region_t), NULL); - 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; + + 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; + } + + if(mc_heap_comparison_ignore == NULL){ + mc_heap_comparison_ignore = xbt_dynar_new(sizeof(mc_heap_ignore_region_t), heap_ignore_region_free_voidp); + xbt_dynar_push(mc_heap_comparison_ignore, ®ion); + if(!raw_mem_set) + MC_UNSET_RAW_MEM; + return; + } - if((address >= std_heap) && (address <= (void*)((char *)std_heap + STD_HEAP_SIZE))){ - - 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; - }else{ - region->fragment = ((uintptr_t) (ADDR2UINT (address) % (BLOCKSIZE))) >> ((xbt_mheap_t)std_heap)->heapinfo[region->block].type; + unsigned int cursor = 0; + mc_heap_ignore_region_t current_region; + int start = 0; + int end = xbt_dynar_length(mc_heap_comparison_ignore) - 1; + + while(start <= end){ + cursor = (start + end) / 2; + current_region = (mc_heap_ignore_region_t)xbt_dynar_get_as(mc_heap_comparison_ignore, cursor, mc_heap_ignore_region_t); + if(current_region->address == address){ + heap_ignore_region_free(region); + if(!raw_mem_set) + MC_UNSET_RAW_MEM; + return; } - + if(current_region->address < address) + start = cursor + 1; + if(current_region->address > address) + end = cursor - 1; } + if(current_region->address < address) + xbt_dynar_insert_at(mc_heap_comparison_ignore, cursor + 1, ®ion); + else + 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; - mc_ignore_region_t current_region; - xbt_dynar_foreach(mc_comparison_ignore, cursor, current_region){ - if(current_region->address > address) + 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); } - xbt_dynar_insert_at(mc_comparison_ignore, cursor, ®ion); + 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); + + 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(xbt_dynar_is_empty(mc_data_bss_comparison_ignore)){ + + 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; + } + + 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); + + } + + /* Remove variable from mc_global_variables */ + + if(mc_global_variables != NULL){ + + unsigned int cursor = 0; + int start = 0; + int end = xbt_dynar_length(mc_global_variables) - 1; + global_variable_t current_var; + int var_found; + + while(start <= end){ + cursor = (start + end) / 2; + current_var = (global_variable_t)xbt_dynar_get_as(mc_global_variables, cursor, global_variable_t); + if(current_var->address == var->address){ + var_found = 1; + break; + } + if(current_var->address < address) + start = cursor + 1; + if(current_var->address > address) + end = cursor - 1; + } + + if(var_found) + xbt_dynar_remove_at(mc_global_variables, cursor, NULL); + + } MC_UNSET_RAW_MEM; @@ -718,12 +934,102 @@ void MC_ignore(void *address, size_t size){ MC_SET_RAW_MEM; } -void MC_new_stack_area(void *stack, char *name, void* context){ +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; + } - raw_mem_set = (mmalloc_get_current_heap() == raw_heap); + 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); @@ -732,6 +1038,8 @@ void MC_new_stack_area(void *stack, char *name, void* context){ 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; @@ -748,8 +1056,10 @@ xbt_dict_t MC_get_location_list(const char *elf_file){ FILE *fp = popen(command, "r"); - if(fp == NULL) + if(fp == NULL){ perror("popen for objdump failed"); + xbt_abort(); + } int debug = 0; /*Detect if the program has been compiled with -g */ @@ -760,7 +1070,7 @@ xbt_dict_t MC_get_location_list(const char *elf_file){ int cursor_remove; xbt_dynar_t split = NULL; - while ((read = getline(&line, &n, fp)) != -1) { + while ((read = xbt_getline(&line, &n, fp)) != -1) { /* Wipeout the new line character */ line[read - 1] = '\0'; @@ -819,7 +1129,7 @@ xbt_dict_t MC_get_location_list(const char *elf_file){ xbt_dynar_free(&split); free(loc_expr); - read = getline(&line, &n, fp); + read = xbt_getline(&line, &n, fp); if(read != -1){ line[read - 1] = '\0'; xbt_str_strip_spaces(line); @@ -831,62 +1141,19 @@ xbt_dict_t MC_get_location_list(const char *elf_file){ 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); } - free(line); - free(command); + xbt_free(line); + xbt_free(command); pclose(fp); return location_list; } -char *get_libsimgrid_path(){ - - char *command = bprintf("ldd %s", xbt_binary_name); - - FILE *fp = popen(command, "r"); - if(fp == NULL) - perror("popen for ldd failed"); - - char *line; - ssize_t read; - size_t n = 0; - xbt_dynar_t split; - - 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); - split = xbt_str_split(line, " "); - - if(strncmp((char *)xbt_dynar_get_as(split, 0, char *), "libsimgrid.so", 13) == 0){ - free(line); - free(command); - pclose(fp); - return ((char *)xbt_dynar_get_as(split, 2, char *)); - } - - xbt_dynar_free(&split); - - } - - free(line); - free(command); - pclose(fp); - - return NULL; - -} - static dw_frame_t get_frame_by_offset(xbt_dict_t all_variables, unsigned long int offset){ xbt_dict_cursor_t cursor = NULL; @@ -894,10 +1161,13 @@ static dw_frame_t get_frame_by_offset(xbt_dict_t all_variables, unsigned long in dw_frame_t res; xbt_dict_foreach(all_variables, cursor, name, res) { - if(offset >= res->start && offset < res->end) + if(offset >= res->start && offset < res->end){ + xbt_dict_cursor_free(&cursor); return res; + } } + xbt_dict_cursor_free(&cursor); return NULL; } @@ -924,12 +1194,12 @@ void MC_get_local_variables(const char *elf_file, xbt_dict_t location_list, xbt_ int new_frame = 0, new_variable = 0; dw_frame_t variable_frame, subroutine_frame = NULL; - read = getline(&line, &n, fp); + read = xbt_getline(&line, &n, fp); while (read != -1) { if(n == 0){ - read = getline(&line, &n, fp); + read = xbt_getline(&line, &n, fp); continue; } @@ -937,7 +1207,7 @@ void MC_get_local_variables(const char *elf_file, xbt_dict_t location_list, xbt_ line[read - 1] = '\0'; if(strlen(line) == 0){ - read = getline(&line, &n, fp); + read = xbt_getline(&line, &n, fp); continue; } @@ -945,7 +1215,7 @@ void MC_get_local_variables(const char *elf_file, xbt_dict_t location_list, xbt_ xbt_str_strip_spaces(line); if(line[0] != '<'){ - read = getline(&line, &n, fp); + read = xbt_getline(&line, &n, fp); continue; } @@ -963,12 +1233,12 @@ void MC_get_local_variables(const char *elf_file, xbt_dict_t location_list, xbt_ subprogram_start = strdup(strtok(NULL, "<")); xbt_str_rtrim(subprogram_start, ">:"); - read = getline(&line, &n, fp); + read = xbt_getline(&line, &n, fp); while(read != -1){ if(n == 0){ - read = getline(&line, &n, fp); + read = xbt_getline(&line, &n, fp); continue; } @@ -976,7 +1246,7 @@ void MC_get_local_variables(const char *elf_file, xbt_dict_t location_list, xbt_ line[read - 1] = '\0'; if(strlen(line) == 0){ - read = getline(&line, &n, fp); + read = xbt_getline(&line, &n, fp); continue; } @@ -1004,11 +1274,12 @@ void MC_get_local_variables(const char *elf_file, xbt_dict_t location_list, xbt_ 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; - free(current_frame); + 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); @@ -1034,6 +1305,7 @@ void MC_get_local_variables(const char *elf_file, xbt_dict_t location_list, xbt_ xbt_str_rtrim(loc_expr, ")"); frame->frame_base = get_location(NULL, loc_expr); xbt_dynar_free(&split2); + xbt_free(loc_expr); } @@ -1049,15 +1321,15 @@ void MC_get_local_variables(const char *elf_file, xbt_dict_t location_list, xbt_ }else if(strcmp(node_type, "DW_AT_MIPS_linkage_name:") == 0){ - free(frame->name); - free(current_frame); + 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); + read = xbt_getline(&line, &n, fp); } @@ -1068,11 +1340,9 @@ void MC_get_local_variables(const char *elf_file, xbt_dict_t location_list, xbt_ xbt_dict_set(*all_variables, frame->name, frame, NULL); } - free(subprogram_start); - if(subprogram_end != NULL){ - free(subprogram_end); - subprogram_end = NULL; - } + xbt_free(subprogram_start); + xbt_free(subprogram_end); + subprogram_end = NULL; }else if(strcmp(node_type, "(DW_TAG_variable)") == 0){ /* New variable */ @@ -1083,12 +1353,12 @@ void MC_get_local_variables(const char *elf_file, xbt_dict_t location_list, xbt_ origin = strdup(strtok(NULL, "<")); xbt_str_rtrim(origin, ">:"); - read = getline(&line, &n, fp); + read = xbt_getline(&line, &n, fp); while(read != -1){ if(n == 0){ - read = getline(&line, &n, fp); + read = xbt_getline(&line, &n, fp); continue; } @@ -1096,7 +1366,7 @@ void MC_get_local_variables(const char *elf_file, xbt_dict_t location_list, xbt_ line[read - 1] = '\0'; if(strlen(line) == 0){ - read = getline(&line, &n, fp); + read = xbt_getline(&line, &n, fp); continue; } @@ -1150,6 +1420,7 @@ void MC_get_local_variables(const char *elf_file, xbt_dict_t location_list, xbt_ xbt_str_rtrim(loc_expr, ")"); var->location = get_location(NULL, loc_expr); xbt_dynar_free(&split2); + xbt_free(loc_expr); } @@ -1161,7 +1432,7 @@ void MC_get_local_variables(const char *elf_file, xbt_dict_t location_list, xbt_ } - read = getline(&line, &n, fp); + read = xbt_getline(&line, &n, fp); } @@ -1180,7 +1451,7 @@ void MC_get_local_variables(const char *elf_file, xbt_dict_t location_list, xbt_ origin = strdup(strtok(NULL, "<")); xbt_str_rtrim(origin, ">:"); - read = getline(&line, &n, fp); + read = xbt_getline(&line, &n, fp); while(read != -1){ @@ -1188,12 +1459,12 @@ void MC_get_local_variables(const char *elf_file, xbt_dict_t location_list, xbt_ line[read - 1] = '\0'; if(n == 0){ - read = getline(&line, &n, fp); + read = xbt_getline(&line, &n, fp); continue; } if(strlen(line) == 0){ - read = getline(&line, &n, fp); + read = xbt_getline(&line, &n, fp); continue; } @@ -1225,21 +1496,21 @@ void MC_get_local_variables(const char *elf_file, xbt_dict_t location_list, xbt_ subroutine_frame->high_pc = (void *)strtoul(xbt_dynar_get_as(split, 3, char *), NULL, 16); } - read = getline(&line, &n, fp); + read = xbt_getline(&line, &n, fp); } }else{ - read = getline(&line, &n, fp); + read = xbt_getline(&line, &n, fp); } } xbt_dynar_free(&split); - free(line); - free(command); + xbt_free(line); + xbt_free(command); pclose(fp); } @@ -1253,8 +1524,9 @@ static dw_location_t get_location(xbt_dict_t location_list, char *expr){ 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 == NULL) + if(loc->location.loclist == NULL) XBT_INFO("Key not found in loclist"); + xbt_free(key); return loc; }else{ @@ -1282,13 +1554,13 @@ static dw_location_t get_location(xbt_dict_t location_list, char *expr){ }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, 1, char*)); + 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, 2, char*)); + 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); @@ -1298,7 +1570,7 @@ static dw_location_t get_location(xbt_dict_t location_list, char *expr){ }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, 1, char*)); + 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 @@ -1307,7 +1579,7 @@ static dw_location_t get_location(xbt_dict_t location_list, char *expr){ }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, 1, char *)); + 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 || @@ -1327,7 +1599,7 @@ static dw_location_t get_location(xbt_dict_t location_list, char *expr){ }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, 1, char*)); + 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 @@ -1342,7 +1614,7 @@ static dw_location_t get_location(xbt_dict_t location_list, char *expr){ 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, 1, char*))); + 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 @@ -1352,7 +1624,7 @@ static dw_location_t get_location(xbt_dict_t location_list, char *expr){ 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, 1, char*))); + 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 || @@ -1361,7 +1633,7 @@ static dw_location_t get_location(xbt_dict_t location_list, char *expr){ 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, 1, char*))); + 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 @@ -1374,7 +1646,7 @@ static dw_location_t get_location(xbt_dict_t location_list, char *expr){ 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, 1, char*))); + 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); @@ -1521,3 +1793,112 @@ void print_local_variables(xbt_dict_t list){ } } + +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 = xbt_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) + || ((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{ + if(xbt_dynar_is_empty(mc_global_variables)){ + xbt_dynar_push(mc_global_variables, &var); + }else{ + unsigned int cursor = 0; + int start = 0; + int end = xbt_dynar_length(mc_global_variables) - 1; + global_variable_t current_var = NULL; + + while(start <= end){ + cursor = (start + end) / 2; + current_var = (global_variable_t)xbt_dynar_get_as(mc_global_variables, cursor, global_variable_t); + if(current_var->address == var->address) + break; + if(current_var->address < var->address) + start = cursor + 1; + if(current_var->address > var->address) + end = cursor - 1; + } + + if(current_var->address < var->address) + xbt_dynar_insert_at(mc_global_variables, cursor + 1, &var); + else + xbt_dynar_insert_at(mc_global_variables, cursor, &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); +}