X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/3227570daf9d253c6d0a79f3c20c04e50e33146c..859be56ee4794f262b79665d2caa32664e52cbed:/src/mc/mc_global.c diff --git a/src/mc/mc_global.c b/src/mc/mc_global.c index a0906644cd..12208e4a5c 100644 --- a/src/mc/mc_global.c +++ b/src/mc/mc_global.c @@ -1,4 +1,5 @@ -/* Copyright (c) 2008-2012 Da SimGrid Team. All rights reserved. */ +/* Copyright (c) 2008-2014. The SimGrid Team. + * All rights reserved. */ /* This program is free software; you can redistribute it and/or modify it * under the terms of the license (GNU LGPL) which comes with this package. */ @@ -7,13 +8,16 @@ #include #include #include +#include +#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, @@ -22,12 +26,24 @@ 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_hash=0; +int _sg_mc_max_depth=1000; +int _sg_mc_visited=0; +char *_sg_mc_dot_output_file = NULL; +int _sg_mc_comms_determinism=0; +int _sg_mc_send_determinism=0; + +int user_max_depth_reached = 0; + void _mc_cfg_cb_reduce(const char *name, int pos) { - if (_surf_init_status && !_surf_do_model_check) { + if (_sg_cfg_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")) { @@ -35,93 +51,858 @@ 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_cfg_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_cfg_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_cfg_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_boolean(_sg_cfg_set, name); +} -/* MC global data structures */ +void _mc_cfg_cb_hash(const char *name, int pos) { + if (_sg_cfg_init_status && !_sg_do_model_check) { + xbt_die("You are specifying a value to enable/disable the use of global hash to speedup state comparaison, but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry."); + } + _sg_mc_hash= xbt_cfg_get_boolean(_sg_cfg_set, name); +} + +void _mc_cfg_cb_max_depth(const char *name, int pos) { + if (_sg_cfg_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_cfg_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); +} + +void _mc_cfg_cb_dot_output(const char *name, int pos) { + if (_sg_cfg_init_status && !_sg_do_model_check) { + xbt_die("You are specifying a file name for a dot output of graph state 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_dot_output_file= xbt_cfg_get_string(_sg_cfg_set, name); +} + +void _mc_cfg_cb_comms_determinism(const char *name, int pos) { + if (_sg_cfg_init_status && !_sg_do_model_check) { + xbt_die("You are specifying a value to enable/disable the detection of determinism in the communications schemes 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_comms_determinism= xbt_cfg_get_boolean(_sg_cfg_set, name); +} + +void _mc_cfg_cb_send_determinism(const char *name, int pos) { + if (_sg_cfg_init_status && !_sg_do_model_check) { + xbt_die("You are specifying a value to enable/disable the detection of send-determinism in the communications schemes 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_send_determinism= xbt_cfg_get_boolean(_sg_cfg_set, name); +} +/* MC global data structures */ 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; +__thread mc_comparison_times_t mc_comp_times = NULL; +__thread double mc_snapshot_comparison_time; +mc_stats_t mc_stats = NULL; /* 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; +xbt_automaton_t _mc_property_automaton = NULL; + +/* Variables */ +mc_object_info_t mc_libsimgrid_info = NULL; +mc_object_info_t mc_binary_info = NULL; + +mc_object_info_t mc_object_infos[2] = { NULL, NULL }; +size_t mc_object_infos_size = 2; /* Ignore mechanism */ -extern xbt_dynar_t mc_comparison_ignore; +extern xbt_dynar_t mc_heap_comparison_ignore; extern xbt_dynar_t stacks_areas; -xbt_automaton_t _mc_property_automaton = NULL; +/* Dot output */ +FILE *dot_output = NULL; +const char* colors[13]; + + +/******************************* DWARF Information *******************************/ +/**********************************************************************************/ -/* Static functions */ +/************************** Free 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); +void dw_type_free(dw_type_t t){ + xbt_free(t->name); + xbt_free(t->dw_type_id); + xbt_dynar_free(&(t->members)); + mc_dwarf_expression_clear(&t->location); + xbt_free(t); +} + +static void dw_type_free_voidp(void *t){ + dw_type_free((dw_type_t) * (void **) t); +} + +void dw_variable_free(dw_variable_t v){ + if(v){ + xbt_free(v->name); + xbt_free(v->type_origin); + + if(v->locations.locations) + mc_dwarf_location_list_clear(&v->locations); + xbt_free(v); + } +} + +void dw_variable_free_voidp(void *t){ + dw_variable_free((dw_variable_t) * (void **) t); +} + +// ***** object_info + +mc_object_info_t MC_new_object_info(void) { + mc_object_info_t res = xbt_new0(s_mc_object_info_t, 1); + res->subprograms = xbt_dynar_new(sizeof(dw_frame_t), NULL); + res->global_variables = xbt_dynar_new(sizeof(dw_variable_t), dw_variable_free_voidp); + res->types = xbt_dict_new_homogeneous(NULL); + res->full_types_by_name = xbt_dict_new_homogeneous(NULL); + return res; +} + +void MC_free_object_info(mc_object_info_t* info) { + xbt_free(&(*info)->file_name); + xbt_dynar_free(&(*info)->subprograms); + xbt_dynar_free(&(*info)->global_variables); + xbt_dict_free(&(*info)->types); + xbt_dict_free(&(*info)->full_types_by_name); + xbt_free(info); + xbt_dynar_free(&(*info)->functions_index); + *info = NULL; +} + +// ***** Helpers + +void* MC_object_base_address(mc_object_info_t info) { + void* result = info->start_exec; + if(info->start_rw!=NULL && result > (void*) info->start_rw) result = info->start_rw; + if(info->start_ro!=NULL && result > (void*) info->start_ro) result = info->start_ro; + return result; +} + +// ***** Functions index + +static int MC_compare_frame_index_items(mc_function_index_item_t a, mc_function_index_item_t b) { + if(a->low_pc < b->low_pc) + return -1; + else if(a->low_pc == b->low_pc) + return 0; + else + return 1; +} + +static void MC_make_functions_index(mc_object_info_t info) { + xbt_dynar_t index = xbt_dynar_new(sizeof(s_mc_function_index_item_t), NULL); + + // Populate the array: + dw_frame_t frame = NULL; + unsigned cursor = 0; + xbt_dynar_foreach(info->subprograms, cursor, frame) { + if(frame->low_pc==NULL) + continue; + s_mc_function_index_item_t entry; + entry.low_pc = frame->low_pc; + entry.high_pc = frame->high_pc; + entry.function = frame; + xbt_dynar_push(index, &entry); + } + + mc_function_index_item_t base = (mc_function_index_item_t) xbt_dynar_get_ptr(index, 0); + + // Sort the array by low_pc: + qsort(base, + xbt_dynar_length(index), + sizeof(s_mc_function_index_item_t), + (int (*)(const void *, const void *))MC_compare_frame_index_items); + + info->functions_index = index; +} + +mc_object_info_t MC_ip_find_object_info(void* ip) { + size_t i; + for(i=0; i!=mc_object_infos_size; ++i) { + if(ip >= (void*)mc_object_infos[i]->start_exec && ip <= (void*)mc_object_infos[i]->end_exec) { + return mc_object_infos[i]; + } + } + return NULL; +} + +static dw_frame_t MC_find_function_by_ip_and_object(void* ip, mc_object_info_t info) { + xbt_dynar_t dynar = info->functions_index; + mc_function_index_item_t base = (mc_function_index_item_t) xbt_dynar_get_ptr(dynar, 0); + int i = 0; + int j = xbt_dynar_length(dynar) - 1; + while(j>=i) { + int k = i + ((j-i)/2); + if(ip < base[k].low_pc) { + j = k-1; + } else if(ip > base[k].high_pc) { + i = k+1; + } else { + return base[k].function; + } + } + return NULL; +} + +dw_frame_t MC_find_function_by_ip(void* ip) { + mc_object_info_t info = MC_ip_find_object_info(ip); + if(info==NULL) + return NULL; + else + return MC_find_function_by_ip_and_object(ip, info); +} + +static void MC_post_process_variables(mc_object_info_t info) { + unsigned cursor = 0; + dw_variable_t variable = NULL; + xbt_dynar_foreach(info->global_variables, cursor, variable) { + if(variable->type_origin) { + variable->type = xbt_dict_get_or_null(info->types, variable->type_origin); + } + } +} + +static void MC_post_process_functions(mc_object_info_t info) { + unsigned cursor = 0; + dw_frame_t function = NULL; + xbt_dynar_foreach(info->subprograms, cursor, function) { + unsigned cursor2 = 0; + dw_variable_t variable = NULL; + xbt_dynar_foreach(function->variables, cursor2, variable) { + if(variable->type_origin) { + variable->type = xbt_dict_get_or_null(info->types, variable->type_origin); + } + } + } +} + +/** \brief Finds informations about a given shared object/executable */ +mc_object_info_t MC_find_object_info(memory_map_t maps, char* name, int executable) { + mc_object_info_t result = MC_new_object_info(); + if(executable) + result->flags |= MC_OBJECT_INFO_EXECUTABLE; + result->file_name = xbt_strdup(name); + MC_find_object_address(maps, result); + MC_dwarf_get_variables(result); + MC_post_process_types(result); + MC_post_process_variables(result); + MC_post_process_functions(result); + MC_make_functions_index(result); + return result; +} + +/*************************************************************************/ + +/** \brief Finds a frame (DW_TAG_subprogram) from an DWARF offset in the rangd of this subprogram + * + * The offset can be an offset of a child DW_TAG_variable. + */ +static dw_frame_t MC_dwarf_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; + +} + +static dw_variable_t MC_dwarf_get_variable_by_name(dw_frame_t frame, char *var){ + + unsigned int cursor = 0; + dw_variable_t current_var; + + xbt_dynar_foreach(frame->variables, cursor, current_var){ + if(strcmp(var, current_var->name) == 0) + return current_var; + } + + return NULL; +} + +static int MC_dwarf_get_variable_index(xbt_dynar_t variables, char* var, void *address){ + + if(xbt_dynar_is_empty(variables)) + return 0; + + unsigned int cursor = 0; + int start = 0; + int end = xbt_dynar_length(variables) - 1; + dw_variable_t var_test = NULL; + + while(start <= end){ + cursor = (start + end) / 2; + var_test = (dw_variable_t)xbt_dynar_get_as(variables, cursor, dw_variable_t); + if(strcmp(var_test->name, var) < 0){ + start = cursor + 1; + }else if(strcmp(var_test->name, var) > 0){ + end = cursor - 1; + }else{ + if(address){ /* global variable */ + if(var_test->address == address) + return -1; + if(var_test->address > address) + end = cursor - 1; + else + start = cursor + 1; + }else{ /* local variable */ + return -1; + } + } + } + + if(strcmp(var_test->name, var) == 0){ + if(address && var_test->address < address) + return cursor+1; + else + return cursor; + }else if(strcmp(var_test->name, var) < 0) + return cursor+1; + else + return cursor; + +} + +void MC_dwarf_register_global_variable(mc_object_info_t info, dw_variable_t variable) { + int index = MC_dwarf_get_variable_index(info->global_variables, variable->name, variable->address); + if (index != -1) + xbt_dynar_insert_at(info->global_variables, index, &variable); + // TODO, else ? +} + +void MC_dwarf_register_non_global_variable(mc_object_info_t info, dw_frame_t frame, dw_variable_t variable) { + xbt_assert(frame, "Frame is NULL"); + int index = MC_dwarf_get_variable_index(frame->variables, variable->name, NULL); + if (index != -1) + xbt_dynar_insert_at(frame->variables, index, &variable); + // TODO, else ? +} + +void MC_dwarf_register_variable(mc_object_info_t info, dw_frame_t frame, dw_variable_t variable) { + if(variable->global) + MC_dwarf_register_global_variable(info, variable); + else if(frame==NULL) + xbt_die("No frame for this local variable"); + else + MC_dwarf_register_non_global_variable(info, frame, variable); +} + + +/******************************* Ignore mechanism *******************************/ +/*********************************************************************************/ + +xbt_dynar_t mc_checkpoint_ignore; + +typedef struct s_mc_stack_ignore_variable{ + char *var_name; + char *frame; +}s_mc_stack_ignore_variable_t, *mc_stack_ignore_variable_t; + +/**************************** Free functions ******************************/ + +static void stack_ignore_variable_free(mc_stack_ignore_variable_t v){ + xbt_free(v->var_name); + xbt_free(v->frame); + xbt_free(v); +} + +static void stack_ignore_variable_free_voidp(void *v){ + stack_ignore_variable_free((mc_stack_ignore_variable_t) * (void **) v); +} + +void heap_ignore_region_free(mc_heap_ignore_region_t r){ + xbt_free(r); +} + +void heap_ignore_region_free_voidp(void *r){ + heap_ignore_region_free((mc_heap_ignore_region_t) * (void **) r); +} + +static void checkpoint_ignore_region_free(mc_checkpoint_ignore_region_t r){ + xbt_free(r); +} + +static void checkpoint_ignore_region_free_voidp(void *r){ + checkpoint_ignore_region_free((mc_checkpoint_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; + + 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++; + }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]++; + } + + 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; + } + + unsigned int cursor = 0; + mc_heap_ignore_region_t current_region = NULL; + 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; + }else if(current_region->address < address){ + start = cursor + 1; + }else{ + 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); + + if(!raw_mem_set) + MC_UNSET_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; + }else if(region->address < address){ + start = cursor + 1; + }else{ + 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); + } + + if(!raw_mem_set) + MC_UNSET_RAW_MEM; + +} + +void MC_ignore_global_variable(const char *name){ + + int raw_mem_set = (mmalloc_get_current_heap() == raw_heap); + + MC_SET_RAW_MEM; + + xbt_assert(mc_libsimgrid_info, "MC subsystem not initialized"); + + unsigned int cursor = 0; + dw_variable_t current_var; + int start = 0; + int end = xbt_dynar_length(mc_libsimgrid_info->global_variables) - 1; + + while(start <= end){ + cursor = (start + end) /2; + current_var = (dw_variable_t)xbt_dynar_get_as(mc_libsimgrid_info->global_variables, cursor, dw_variable_t); + if(strcmp(current_var->name, name) == 0){ + xbt_dynar_remove_at(mc_libsimgrid_info->global_variables, cursor, NULL); + start = 0; + end = xbt_dynar_length(mc_libsimgrid_info->global_variables) - 1; + }else if(strcmp(current_var->name, name) < 0){ + start = cursor + 1; + }else{ + end = cursor - 1; + } + } + + if(!raw_mem_set) + MC_UNSET_RAW_MEM; +} + +static void MC_ignore_local_variable_in_object(const char *var_name, const char *frame_name, mc_object_info_t info) { + unsigned cursor2; + dw_frame_t frame; + int start, end; + int cursor = 0; + dw_variable_t current_var; + + xbt_dynar_foreach(info->subprograms, cursor2, frame) { + + if(frame_name && strcmp(frame_name, frame->name)) + continue; + + start = 0; + end = xbt_dynar_length(frame->variables) - 1; + while(start <= end){ + cursor = (start + end) / 2; + current_var = (dw_variable_t)xbt_dynar_get_as(frame->variables, cursor, dw_variable_t); + + int compare = strcmp(current_var->name, var_name); + if(compare == 0){ + xbt_dynar_remove_at(frame->variables, cursor, NULL); + start = 0; + end = xbt_dynar_length(frame->variables) - 1; + }else if(compare < 0){ + start = cursor + 1; + }else{ + end = cursor - 1; + } + } + } +} + +void MC_ignore_local_variable(const char *var_name, const char *frame_name){ + + int raw_mem_set = (mmalloc_get_current_heap() == raw_heap); + + if(strcmp(frame_name, "*") == 0) + frame_name = NULL; + + MC_SET_RAW_MEM; + + MC_ignore_local_variable_in_object(var_name, frame_name, mc_libsimgrid_info); + if(frame_name!=NULL) + MC_ignore_local_variable_in_object(var_name, frame_name, mc_binary_info); + + if(!raw_mem_set) + MC_UNSET_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); + + if(!raw_mem_set) + MC_UNSET_RAW_MEM; +} + +void MC_ignore(void *addr, size_t size){ + + int raw_mem_set= (mmalloc_get_current_heap() == raw_heap); + + MC_SET_RAW_MEM; + + if(mc_checkpoint_ignore == NULL) + mc_checkpoint_ignore = xbt_dynar_new(sizeof(mc_checkpoint_ignore_region_t), checkpoint_ignore_region_free_voidp); + + mc_checkpoint_ignore_region_t region = xbt_new0(s_mc_checkpoint_ignore_region_t, 1); + region->addr = addr; + region->size = size; + + if(xbt_dynar_is_empty(mc_checkpoint_ignore)){ + xbt_dynar_push(mc_checkpoint_ignore, ®ion); + }else{ + + unsigned int cursor = 0; + int start = 0; + int end = xbt_dynar_length(mc_checkpoint_ignore) -1; + mc_checkpoint_ignore_region_t current_region = NULL; + + while(start <= end){ + cursor = (start + end) / 2; + current_region = (mc_checkpoint_ignore_region_t)xbt_dynar_get_as(mc_checkpoint_ignore, cursor, mc_checkpoint_ignore_region_t); + if(current_region->addr == addr){ + if(current_region->size == size){ + checkpoint_ignore_region_free(region); + if(!raw_mem_set) + MC_UNSET_RAW_MEM; + return; + }else if(current_region->size < size){ + start = cursor + 1; + }else{ + end = cursor - 1; + } + }else if(current_region->addr < addr){ + start = cursor + 1; + }else{ + end = cursor - 1; + } + } + + if(current_region->addr == addr){ + if(current_region->size < size){ + xbt_dynar_insert_at(mc_checkpoint_ignore, cursor + 1, ®ion); + }else{ + xbt_dynar_insert_at(mc_checkpoint_ignore, cursor, ®ion); + } + }else if(current_region->addr < addr){ + xbt_dynar_insert_at(mc_checkpoint_ignore, cursor + 1, ®ion); + }else{ + xbt_dynar_insert_at(mc_checkpoint_ignore, cursor, ®ion); + } + } + + if(!raw_mem_set) + MC_UNSET_RAW_MEM; +} + +/******************************* Initialisation of MC *******************************/ +/*********************************************************************************/ + +static void MC_post_process_object_info(mc_object_info_t info) { + xbt_dict_cursor_t cursor = NULL; + char* key = NULL; + dw_type_t type = NULL; + xbt_dict_foreach(info->types, cursor, key, type){ + + // Resolve full_type: + if(type->name && type->byte_size == 0) { + for(size_t i=0; i!=mc_object_infos_size; ++i) { + dw_type_t same_type = xbt_dict_get_or_null(mc_object_infos[i]->full_types_by_name, type->name); + if(same_type && same_type->name && same_type->byte_size) { + type->full_type = same_type; + break; + } + } + } + + } +} + +static void MC_init_debug_info(void) { + XBT_INFO("Get debug information ..."); + + memory_map_t maps = MC_get_memory_map(); + + /* Get local variables for state equality detection */ + mc_binary_info = MC_find_object_info(maps, xbt_binary_name, 1); + mc_object_infos[0] = mc_binary_info; + + mc_libsimgrid_info = MC_find_object_info(maps, libsimgrid_path, 0); + mc_object_infos[1] = mc_libsimgrid_info; + + // Use information of the other objects: + MC_post_process_object_info(mc_binary_info); + MC_post_process_object_info(mc_libsimgrid_info); + + MC_free_memory_map(maps); + XBT_INFO("Get debug information done !"); +} + +void MC_init(){ + + int raw_mem_set = (mmalloc_get_current_heap() == raw_heap); + + 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_init_debug_info(); + + /* Init parmap */ + parmap = xbt_parmap_mc_new(xbt_os_get_numcores(), XBT_PARMAP_DEFAULT); + + MC_UNSET_RAW_MEM; + + /* Ignore some variables from xbt/ex.h used by exception e for stacks comparison */ + MC_ignore_local_variable("e", "*"); + MC_ignore_local_variable("__ex_cleanup", "*"); + MC_ignore_local_variable("__ex_mctx_en", "*"); + MC_ignore_local_variable("__ex_mctx_me", "*"); + MC_ignore_local_variable("__xbt_ex_ctx_ptr", "*"); + MC_ignore_local_variable("_log_ev", "*"); + MC_ignore_local_variable("_throw_ctx", "*"); + MC_ignore_local_variable("ctx", "*"); + + MC_ignore_local_variable("self", "simcall_BODY_mc_snapshot"); + MC_ignore_local_variable("next_context", "smx_ctx_sysv_suspend_serial"); + MC_ignore_local_variable("i", "smx_ctx_sysv_suspend_serial"); + + /* Ignore local variable about time used for tracing */ + MC_ignore_local_variable("start_time", "*"); + + MC_ignore_global_variable("compared_pointers"); + MC_ignore_global_variable("mc_comp_times"); + MC_ignore_global_variable("mc_snapshot_comparison_time"); + MC_ignore_global_variable("mc_time"); + MC_ignore_global_variable("smpi_current_rank"); + MC_ignore_global_variable("counter"); /* Static variable used for tracing */ + MC_ignore_global_variable("maestro_stack_start"); + MC_ignore_global_variable("maestro_stack_end"); + MC_ignore_global_variable("smx_total_comms"); + + MC_ignore_heap(&(simix_global->process_to_run), sizeof(simix_global->process_to_run)); + MC_ignore_heap(&(simix_global->process_that_ran), sizeof(simix_global->process_that_ran)); + MC_ignore_heap(simix_global->process_to_run, sizeof(*(simix_global->process_to_run))); + MC_ignore_heap(simix_global->process_that_ran, sizeof(*(simix_global->process_that_ran))); + + smx_process_t process; + xbt_swag_foreach(process, simix_global->process_list){ + MC_ignore_heap(&(process->process_hookup), sizeof(process->process_hookup)); + } + + if(raw_mem_set) + MC_SET_RAW_MEM; + +} + +static void MC_init_dot_output(){ /* FIXME : more colors */ + + colors[0] = "blue"; + colors[1] = "red"; + colors[2] = "green3"; + colors[3] = "goldenrod"; + colors[4] = "brown"; + colors[5] = "purple"; + colors[6] = "magenta"; + colors[7] = "turquoise4"; + colors[8] = "gray25"; + colors[9] = "forestgreen"; + colors[10] = "hotpink"; + colors[11] = "lightblue"; + colors[12] = "tan"; + + dot_output = fopen(_sg_mc_dot_output_file, "w"); + + if(dot_output == NULL){ + perror("Error open dot output file"); + xbt_abort(); + } + + fprintf(dot_output, "digraph graphname{\n fixedsize=true; rankdir=TB; ranksep=.25; edge [fontsize=12]; node [fontsize=10, shape=circle,width=.5 ]; graph [resolution=20, fontsize=10];\n"); + +} + +/******************************* Core of MC *******************************/ +/**************************************************************************/ 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) +void MC_modelcheck_safety(void) { - - raw_mem_set = (mmalloc_get_current_heap() == raw_heap); + 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_time refers to clock for each process -> ignore it for heap comparison */ + MC_ignore_heap(mc_time, simix_process_maxpid * sizeof(double)); + /* Initialize the data structures that must be persistent across every iteration of the model-checker (in RAW memory) */ @@ -134,92 +915,98 @@ void MC_init_safety(void) /* Create exploration stack */ mc_stack_safety = xbt_fifo_new(); + if((_sg_mc_dot_output_file != NULL) && (_sg_mc_dot_output_file[0]!='\0')) + MC_init_dot_output(); + MC_UNSET_RAW_MEM; + if(_sg_mc_visited > 0){ + MC_init(); + }else{ + MC_SET_RAW_MEM; + MC_init_memory_map_info(); + MC_init_debug_info(); + 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(0); + initial_state_safety->initial_communications_pattern_done = 0; + initial_state_safety->comm_deterministic = 1; + initial_state_safety->send_deterministic = 1; 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(); + xbt_abort(); + //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); - /* 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 ignore it for heap comparison */ + MC_ignore_heap(mc_time, simix_process_maxpid * sizeof(double)); + MC_SET_RAW_MEM; - - /* Get local variables in binary for state equality detection */ - MC_get_binary_local_variables(); - + /* Initialize statistics */ - mc_stats_pair = xbt_new0(s_mc_stats_pair_t, 1); - - XBT_DEBUG("Creating stack"); + mc_stats = xbt_new0(s_mc_stats_t, 1); + mc_stats->state_size = 1; /* Create exploration stack */ mc_stack_liveness = xbt_fifo_new(); + /* Create the initial state */ + initial_state_liveness = xbt_new0(s_mc_global_t, 1); + + if((_sg_mc_dot_output_file != NULL) && (_sg_mc_dot_output_file[0]!='\0')) + MC_init_dot_output(); + MC_UNSET_RAW_MEM; MC_ddfs_init(); /* We're done */ - MC_print_statistics_pairs(mc_stats_pair); + MC_print_statistics(mc_stats); 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(); +} + +int SIMIX_pre_mc_random(smx_simcall_t simcall, int min, int max){ + + return simcall->mc_value; } int MC_random(int min, int max) { /*FIXME: return mc_current_state->executed_transition->random.value;*/ - return 0; + return simcall_mc_random(min, max); } /** @@ -266,19 +1053,21 @@ 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; + int value, i = 1, count = 1; char *req_str; smx_simcall_t req = NULL, saved_req = NULL; xbt_fifo_item_t item, start_item; mc_state_t state; + smx_process_t process = NULL; + int comm_pattern = 0; XBT_DEBUG("**** Begin Replay ****"); 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; @@ -292,6 +1081,21 @@ void MC_replay(xbt_fifo_t stack, int start) } } + MC_SET_RAW_MEM; + xbt_dict_reset(first_enabled_state); + xbt_swag_foreach(process, simix_global->process_list){ + if(MC_process_is_enabled(process)){ + char *key = bprintf("%lu", process->pid); + char *data = bprintf("%d", count); + xbt_dict_set(first_enabled_state, key, data, NULL); + xbt_free(key); + } + } + if(_sg_mc_comms_determinism || _sg_mc_send_determinism) + xbt_dynar_reset(communications_pattern); + MC_UNSET_RAW_MEM; + + /* Traverse the stack from the state at position start and re-execute the transitions */ for (item = start_item; item != xbt_fifo_get_first_item(stack); @@ -300,6 +1104,12 @@ void MC_replay(xbt_fifo_t stack, int start) state = (mc_state_t) xbt_fifo_get_item_content(item); saved_req = MC_state_get_executed_request(state, &value); + MC_SET_RAW_MEM; + char *key = bprintf("%lu", saved_req->issuer->pid); + xbt_dict_remove(first_enabled_state, key); + xbt_free(key); + MC_UNSET_RAW_MEM; + if(saved_req){ /* because we got a copy of the executed request, we have to fetch the real one, pointed by the request field of the issuer process */ @@ -312,17 +1122,52 @@ void MC_replay(xbt_fifo_t stack, int start) xbt_free(req_str); } } - + + if(_sg_mc_comms_determinism || _sg_mc_send_determinism){ + if(req->call == SIMCALL_COMM_ISEND) + comm_pattern = 1; + else if(req->call == SIMCALL_COMM_IRECV) + comm_pattern = 2; + } + SIMIX_simcall_pre(req, value); + + if(_sg_mc_comms_determinism || _sg_mc_send_determinism){ + MC_SET_RAW_MEM; + if(comm_pattern != 0){ + get_comm_pattern(communications_pattern, req, comm_pattern); + } + MC_UNSET_RAW_MEM; + comm_pattern = 0; + } + MC_wait_for_requests(); + + count++; + + MC_SET_RAW_MEM; + /* Insert in dict all enabled processes */ + xbt_swag_foreach(process, simix_global->process_list){ + if(MC_process_is_enabled(process) /*&& !MC_state_process_is_done(state, process)*/){ + char *key = bprintf("%lu", process->pid); + if(xbt_dict_get_or_null(first_enabled_state, key) == NULL){ + char *data = bprintf("%d", count); + xbt_dict_set(first_enabled_state, key, data, NULL); + } + xbt_free(key); + } + } + MC_UNSET_RAW_MEM; /* Update statistics */ mc_stats->visited_states++; mc_stats->executed_transitions++; + } + XBT_DEBUG("**** End Replay ****"); - if(raw_mem_set) + if(raw_mem) MC_SET_RAW_MEM; else MC_UNSET_RAW_MEM; @@ -333,23 +1178,25 @@ 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; smx_simcall_t req = NULL, saved_req = NULL; xbt_fifo_item_t item; mc_state_t state; - mc_pair_stateless_t pair; + mc_pair_t pair; int depth = 1; 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){ @@ -357,7 +1204,7 @@ void MC_replay_liveness(xbt_fifo_t stack, int all_stack) while(depth <= xbt_fifo_size(stack)){ - pair = (mc_pair_stateless_t) xbt_fifo_get_item_content(item); + pair = (mc_pair_t) xbt_fifo_get_item_content(item); state = (mc_state_t) pair->graph_state; if(pair->requests > 0){ @@ -387,7 +1234,8 @@ void MC_replay_liveness(xbt_fifo_t stack, int all_stack) depth++; /* Update statistics */ - mc_stats_pair->visited_pairs++; + mc_stats->visited_pairs++; + mc_stats->executed_transitions++; item = xbt_fifo_get_prev_item(item); } @@ -399,7 +1247,7 @@ void MC_replay_liveness(xbt_fifo_t stack, int all_stack) item != xbt_fifo_get_first_item(stack); item = xbt_fifo_get_prev_item(item)) { - pair = (mc_pair_stateless_t) xbt_fifo_get_item_content(item); + pair = (mc_pair_t) xbt_fifo_get_item_content(item); state = (mc_state_t) pair->graph_state; if(pair->requests > 0){ @@ -429,13 +1277,14 @@ void MC_replay_liveness(xbt_fifo_t stack, int all_stack) depth++; /* Update statistics */ - mc_stats_pair->visited_pairs++; + mc_stats->visited_pairs++; + mc_stats->executed_transitions++; } } XBT_DEBUG("**** End Replay ****"); - if(raw_mem_set) + if(initial_state_liveness->raw_mem_set) MC_SET_RAW_MEM; else MC_UNSET_RAW_MEM; @@ -450,11 +1299,11 @@ 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; @@ -475,6 +1324,11 @@ void MC_dump_stack_safety(xbt_fifo_t stack) void MC_show_stack_safety(xbt_fifo_t stack) { + + int raw_mem_set = (mmalloc_get_current_heap() == raw_heap); + + MC_SET_RAW_MEM; + int value; mc_state_t state; xbt_fifo_item_t item; @@ -491,6 +1345,9 @@ void MC_show_stack_safety(xbt_fifo_t stack) xbt_free(req_str); } } + + if(!raw_mem_set) + MC_UNSET_RAW_MEM; } void MC_show_deadlock(smx_simcall_t req) @@ -505,18 +1362,19 @@ void MC_show_deadlock(smx_simcall_t req) xbt_free(req_str);*/ XBT_INFO("Counter-example execution trace:"); MC_dump_stack_safety(mc_stack_safety); + MC_print_statistics(mc_stats); } void MC_show_stack_liveness(xbt_fifo_t stack){ int value; - mc_pair_stateless_t pair; + mc_pair_t pair; xbt_fifo_item_t item; smx_simcall_t req; char *req_str = NULL; for (item = xbt_fifo_get_last_item(stack); - (item ? (pair = (mc_pair_stateless_t) (xbt_fifo_get_item_content(item))) + (item ? (pair = (mc_pair_t) (xbt_fifo_get_item_content(item))) : (NULL)); item = xbt_fifo_get_prev_item(item)) { req = MC_state_get_executed_request(pair->graph_state, &value); if(req){ @@ -533,49 +1391,48 @@ 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; + mc_pair_t pair; MC_SET_RAW_MEM; - while ((pair = (mc_pair_stateless_t) xbt_fifo_pop(stack)) != NULL) - MC_pair_stateless_delete(pair); + while ((pair = (mc_pair_t) xbt_fifo_pop(stack)) != NULL) + MC_pair_delete(pair); MC_UNSET_RAW_MEM; if(raw_mem_set) MC_SET_RAW_MEM; - else - MC_UNSET_RAW_MEM; } void MC_print_statistics(mc_stats_t stats) { - //XBT_INFO("State space size ~= %lu", stats->state_size); - XBT_INFO("Expanded states = %lu", stats->expanded_states); - XBT_INFO("Visited states = %lu", stats->visited_states); + if(stats->expanded_pairs == 0){ + XBT_INFO("Expanded states = %lu", stats->expanded_states); + XBT_INFO("Visited states = %lu", stats->visited_states); + }else{ + XBT_INFO("Expanded pairs = %lu", stats->expanded_pairs); + XBT_INFO("Visited pairs = %lu", stats->visited_pairs); + } XBT_INFO("Executed transitions = %lu", stats->executed_transitions); - XBT_INFO("Expanded / Visited = %lf", - (double) stats->visited_states / stats->expanded_states); - /*XBT_INFO("Exploration coverage = %lf", - (double)stats->expanded_states / stats->state_size); */ -} - -void MC_print_statistics_pairs(mc_stats_pair_t stats) -{ - XBT_INFO("Expanded pairs = %lu", stats->expanded_pairs); - XBT_INFO("Visited pairs = %lu", stats->visited_pairs); - //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); */ + MC_SET_RAW_MEM; + if((_sg_mc_dot_output_file != NULL) && (_sg_mc_dot_output_file[0]!='\0')){ + fprintf(dot_output, "}\n"); + fclose(dot_output); + } + if(initial_state_safety != NULL){ + if(_sg_mc_comms_determinism) + XBT_INFO("Communication-deterministic : %s", !initial_state_safety->comm_deterministic ? "No" : "Yes"); + if (_sg_mc_send_determinism) + XBT_INFO("Send-deterministic : %s", !initial_state_safety->send_deterministic ? "No" : "Yes"); + } + 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("**************************"); @@ -586,17 +1443,8 @@ void MC_assert(int prop) } } -static void MC_assert_pair(int prop){ - if (MC_IS_ENABLED && !prop) { - XBT_INFO("**************************"); - XBT_INFO("*** PROPERTY NOT VALID ***"); - XBT_INFO("**************************"); - //XBT_INFO("Counter-example execution trace:"); - MC_show_stack_liveness(mc_stack_liveness); - //MC_dump_snapshot_stack(mc_snapshot_stack); - MC_print_statistics_pairs(mc_stats_pair); - xbt_abort(); - } +void MC_cut(void){ + user_max_depth_reached = 1; } void MC_process_clock_add(smx_process_t process, double amount) @@ -606,15 +1454,19 @@ void MC_process_clock_add(smx_process_t process, double amount) 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; @@ -627,671 +1479,26 @@ void MC_automaton_load(const char *file){ 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 (_mc_property_automaton == NULL) _mc_property_automaton = xbt_automaton_new(); - xbt_new_propositional_symbol(_mc_property_automaton,id,fct); + xbt_automaton_propositional_symbol_new(_mc_property_automaton,id,fct); MC_UNSET_RAW_MEM; if(raw_mem_set) MC_SET_RAW_MEM; - else - MC_UNSET_RAW_MEM; - -} - -/************ MC_ignore ***********/ - -void MC_ignore(void *address, size_t size){ - - 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); - region->address = address; - region->size = size; - - 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_ignore_region_t current_region; - xbt_dynar_foreach(mc_comparison_ignore, cursor, current_region){ - if(current_region->address > address) - break; - } - - xbt_dynar_insert_at(mc_comparison_ignore, cursor, ®ion); - - MC_UNSET_RAW_MEM; -} - -void MC_new_stack_area(void *stack, char *name){ - - if(stacks_areas == NULL) - stacks_areas = xbt_dynar_new(sizeof(stack_region_t), NULL); - - MC_SET_RAW_MEM; - stack_region_t region = NULL; - region = xbt_new0(s_stack_region_t, 1); - region->address = stack; - region->process_name = strdup(name); - xbt_dynar_push(stacks_areas, ®ion); - MC_UNSET_RAW_MEM; -} - -/************ DWARF ***********/ - -static void MC_get_binary_local_variables(){ - - mc_binary_local_variables = xbt_dynar_new(sizeof(dw_frame_t), NULL); - - char *command = bprintf("dwarfdump -i %s", xbt_binary_name); - - FILE* fp = popen(command, "r"); - - if(fp == NULL) - perror("popen failed"); - - char *line = NULL, *tmp_line = NULL, *tmp_location, *frame_name = NULL; - ssize_t read; - size_t n = 0; - int valid_variable = 1, valid_frame = 1; - char *node_type, *location_type, *variable_name = NULL, *lowpc, *highpc; - xbt_dynar_t split = NULL; - - void *low_pc = NULL, *old_low_pc = NULL; - - int compile_unit_found = 0; /* Detect if the program has been compiled with -g */ - - read = getline(&line, &n, fp); - - while (read != -1) { - - if(n == 0) - continue; - - /* Wipeout the new line character */ - line[read - 1] = '\0'; - - if(line[0] == '<'){ - - /* If the program hasn't been compiled with -g, no symbol (line starting with '<' ) found */ - compile_unit_found = 1; - - /* Get node type */ - strtok(line, " "); - strtok(NULL, " "); - node_type = strtok(NULL, " "); - - if(strcmp(node_type, "DW_TAG_subprogram") == 0){ /* New frame */ - - read = getline(&line, &n, fp); - - while(read != -1 && line[0] != '<'){ - - if(n == 0) - continue; - - node_type = strtok(line, " "); - - if(node_type != NULL && strcmp(node_type, "DW_AT_name") == 0){ - - frame_name = strdup(strtok(NULL, " ")); - xbt_str_trim(frame_name, NULL); - xbt_str_trim(frame_name, "\""); - read = getline(&line, &n, fp); - - }else if(node_type != NULL && strcmp(node_type, "DW_AT_frame_base") == 0){ - - if(valid_frame == 1){ - - dw_frame_t frame = xbt_new0(s_dw_frame_t, 1); - frame->name = strdup(frame_name); - frame->variables = xbt_dynar_new(sizeof(dw_local_variable_t), NULL); - frame->location = xbt_new0(s_dw_location_t, 1); - free(frame_name); - - location_type = strtok(NULL, " "); - - if(strcmp(location_type, "location->type = e_dw_loclist; - frame->location->location.loclist = xbt_dynar_new(sizeof(dw_location_entry_t), NULL); - - read = getline(&line, &n, fp); - xbt_str_ltrim(line, NULL); - - while(read != -1 && line[0] == '['){ - - strtok(line, "<"); - lowpc = strtok(NULL, "<"); - highpc = strtok(NULL, ">"); - tmp_location = strtok(NULL, ">"); - lowpc[strlen(lowpc) - 1] = '\0'; /* Remove last character '>' */ - - dw_location_entry_t new_entry = xbt_new0(s_dw_location_entry_t, 1); - - if(low_pc == NULL){ - strtok(lowpc, "="); - new_entry->lowpc = (void *) strtoul(strtok(NULL, "="), NULL, 16); - strtok(highpc, "="); - new_entry->highpc = (void *) strtoul(strtok(NULL, "="), NULL, 16); - }else{ - strtok(lowpc, "="); - old_low_pc = (void *)strtoul(strtok(NULL, "="), NULL, 16); - new_entry->lowpc = (char *)low_pc + (long)old_low_pc; - strtok(highpc, "="); - new_entry->highpc = (char*)low_pc + ((char *)((void *)strtoul(strtok(NULL, "="), NULL, 16)) - (char*)old_low_pc); - } - - new_entry->location = xbt_new0(s_dw_location_t, 1); - - get_location(tmp_location, new_entry->location); - - xbt_dynar_push(frame->location->location.loclist, &new_entry); - - read = getline(&line, &n, fp); - xbt_str_ltrim(line, NULL); - - } - - }else{ - read = getline(&line, &n, fp); - frame->location->type = get_location(location_type, frame->location); - - } - - xbt_dynar_push(mc_binary_local_variables, &frame); - - }else{ - - read = getline(&line, &n, fp); - - } - - }else if(node_type != NULL && (strcmp(node_type, "DW_AT_declaration") == 0 || strcmp(node_type, "DW_AT_abstract_origin") == 0 || strcmp(node_type, "DW_AT_artificial") == 0)){ - - read = getline(&line, &n, fp); - valid_frame = 0; - - }else{ - - read = getline(&line, &n, fp); - - } - - } - - valid_frame = 1; - - }else if(strcmp(node_type, "DW_TAG_variable") == 0){ /* New variable */ - - read = getline(&line, &n, fp); - - while(read != -1 && line[0] != '<'){ - - if(n == 0) - continue; - - tmp_line = strdup(line); - - node_type = strtok(line, " "); - - if(node_type != NULL && strcmp(node_type, "DW_AT_name") == 0){ - - variable_name = strdup(strtok(NULL, " ")); - xbt_str_trim(variable_name, NULL); - xbt_str_trim(variable_name, "\""); - read = getline(&line, &n, fp); - - }else if(node_type != NULL && strcmp(node_type, "DW_AT_location") == 0){ - - if(valid_variable == 1){ - - location_type = strtok(NULL, " "); - - dw_local_variable_t variable = xbt_new0(s_dw_local_variable_t, 1); - variable->name = strdup(variable_name); - variable->location = xbt_new0(s_dw_location_t, 1); - free(variable_name); - - if(strcmp(location_type, "location->type = e_dw_loclist; - variable->location->location.loclist = xbt_dynar_new(sizeof(dw_location_entry_t), NULL); - - read = getline(&line, &n, fp); - xbt_str_ltrim(line, NULL); - - while(read != -1 && line[0] == '['){ - - strtok(line, "<"); - lowpc = strtok(NULL, "<"); - highpc = strtok(NULL, ">"); - tmp_location = strtok(NULL, ">"); - lowpc[strlen(lowpc) - 1] = '\0'; /* Remove last character '>' */ - - dw_location_entry_t new_entry = xbt_new0(s_dw_location_entry_t, 1); - - if(low_pc == NULL){ - strtok(lowpc, "="); - new_entry->lowpc = (void *) strtoul(strtok(NULL, "="), NULL, 16); - strtok(highpc, "="); - new_entry->highpc = (void *) strtoul(strtok(NULL, "="), NULL, 16); - }else{ - strtok(lowpc, "="); - old_low_pc = (void *)strtoul(strtok(NULL, "="), NULL, 16); - new_entry->lowpc = (char *)low_pc + (long)old_low_pc; - strtok(highpc, "="); - new_entry->highpc = (char*)low_pc + ((char *)((void *)strtoul(strtok(NULL, "="), NULL, 16)) - (char*)old_low_pc); - } - - new_entry->location = xbt_new0(s_dw_location_t, 1); - - get_location(tmp_location, new_entry->location); - - xbt_dynar_push(variable->location->location.loclist, &new_entry); - - read = getline(&line, &n, fp); - xbt_str_ltrim(line, NULL); - - } - - }else{ - - xbt_str_strip_spaces(tmp_line); - split = xbt_str_split(tmp_line, " "); - xbt_dynar_remove_at(split, 0, NULL); - location_type = xbt_str_join(split, " "); - - variable->location->type = get_location(location_type, variable->location); - read = getline(&line, &n, fp); - - xbt_dynar_free(&split); - free(location_type); - - } - - xbt_dynar_push(((dw_frame_t)xbt_dynar_get_as(mc_binary_local_variables, xbt_dynar_length(mc_binary_local_variables) - 1, dw_frame_t))->variables, &variable); - - }else{ - - read = getline(&line, &n, fp); - - } - - }else if(node_type != NULL && (strcmp(node_type, "DW_AT_artificial") == 0 || strcmp(node_type, "DW_AT_external") == 0)){ - - valid_variable = 0; - read = getline(&line, &n, fp); - - }else{ - - read = getline(&line, &n, fp); - - } - - //free(tmp_line); - - } - - valid_variable = 1; - - }else if(strcmp(node_type, "DW_TAG_compile_unit") == 0){ - - read = getline(&line, &n, fp); - - while(read != -1 && line[0] != '<'){ - - if(n == 0) - continue; - - node_type = strtok(line, " "); - - if(node_type != NULL && strcmp(node_type, "DW_AT_low_pc") == 0){ - low_pc = (void *) strtoul(strtok(NULL, " "), NULL, 16); - } - - read = getline(&line, &n, fp); - - } - - }else{ - - read = getline(&line, &n, fp); - - } - - - }else{ - - read = getline(&line, &n, fp); - - } - - - } - - free(line); - free(command); - pclose(fp); - - if(compile_unit_found == 0){ - XBT_INFO("Your program must be compiled with -g"); - xbt_abort(); - } - - if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)) - print_local_variables(mc_binary_local_variables); - } -void print_local_variables(xbt_dynar_t list){ - - dw_frame_t frame; - dw_local_variable_t variable; - dw_location_entry_t entry; - dw_location_t location_entry; - unsigned int cursor = 0, cursor2 = 0, cursor3 = 0, cursor4 = 0; - - xbt_dynar_foreach(list, cursor, frame){ - fprintf(stderr, "Frame name : %s", frame->name); - fprintf(stderr, "Location type : %d\n", frame->location->type); - fprintf(stderr, "Variables : (%lu)\n", xbt_dynar_length(frame->variables)); - xbt_dynar_foreach(frame->variables, cursor2, variable){ - fprintf(stderr, "Name : %s", variable->name); - fprintf(stderr, "Location type : %d\n", variable->location->type); - switch(variable->location->type){ - case e_dw_loclist : - xbt_dynar_foreach(variable->location->location.loclist, cursor3, entry){ - fprintf(stderr, "Lowpc : %p, Highpc : %p,", 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_constant : - fprintf(stderr, "%d) Constant %d\n", cursor4 + 1, location_entry->location.constant.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(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_constant : - fprintf(stderr, "%d) Constant %d\n", cursor4 + 1, location_entry->location.constant.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 e_dw_location_type get_location(char *expr, dw_location_t entry){ - - int cursor = 0; - char *tok = NULL, *tmp_tok = NULL; - - xbt_dynar_t tokens = xbt_str_split(expr, NULL); - xbt_dynar_remove_at(tokens, xbt_dynar_length(tokens) - 1, NULL); - - if(xbt_dynar_length(tokens) > 1){ - - entry->type = e_dw_compose; - entry->location.compose = xbt_dynar_new(sizeof(dw_location_t), NULL); - - while(cursor < xbt_dynar_length(tokens)){ - - tok = xbt_dynar_get_as(tokens, cursor, char*); - - if(strncmp(tok, "DW_OP_reg", 9) == 0){ - dw_location_t new_element = xbt_new0(s_dw_location_t, 1); - new_element->type = e_dw_register; - if(tok[9] == 'x'){ - new_element->location.reg = atoi(xbt_dynar_get_as(tokens, ++cursor, char*)); - }else{ - new_element->location.reg = atoi(strtok(tok, "DW_OP_reg")); - } - xbt_dynar_push(entry->location.compose, &new_element); - }else if(strcmp(tok, "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(tokens, ++cursor, char*)); - xbt_dynar_push(entry->location.compose, &new_element); - }else if(strncmp(tok, "DW_OP_breg", 10) == 0){ - dw_location_t new_element = xbt_new0(s_dw_location_t, 1); - new_element->type = e_dw_bregister_op; - if(tok[10] == 'x'){ - new_element->location.breg_op.reg = atoi(xbt_dynar_get_as(tokens, ++cursor, char*)); - new_element->location.breg_op.offset = atoi(xbt_dynar_get_as(tokens, ++cursor, char*)); - }else{ - if(strchr(tok,'+') != NULL){ - tmp_tok = strtok(tok,"DW_OP_breg"); - new_element->location.breg_op.reg = atoi(strtok(tmp_tok,"+")); - new_element->location.breg_op.offset = atoi(strtok(NULL,"+")); - }else{ - new_element->location.breg_op.reg = atoi(strtok(tok, "DW_OP_breg")); - new_element->location.breg_op.offset = atoi(xbt_dynar_get_as(tokens, ++cursor, char*)); - } - } - xbt_dynar_push(entry->location.compose, &new_element); - }else if(strncmp(tok, "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(tok, "DW_OP_lit")); - xbt_dynar_push(entry->location.compose, &new_element); - }else if(strcmp(tok, "DW_OP_piece") == 0){ - dw_location_t new_element = xbt_new0(s_dw_location_t, 1); - new_element->type = e_dw_piece; - if(strlen(xbt_dynar_get_as(tokens, ++cursor, char*)) > 1) - new_element->location.piece = atoi(xbt_dynar_get_as(tokens, cursor, char*)); - else - new_element->location.piece = xbt_dynar_get_as(tokens, cursor, char*)[0] - '0'; - xbt_dynar_push(entry->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 || - strcmp(tok, "DW_OP_plus_uconst") == 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(tok, "DW_OP_")); - xbt_dynar_push(entry->location.compose, &new_element); - }else if(strcmp(tok, "DW_OP_stack_value") == 0){ - cursor++; - }else if(strcmp(tok, "DW_OP_deref_size") == 0){ - dw_location_t new_element = xbt_new0(s_dw_location_t, 1); - new_element->type = e_dw_deref; - 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(entry->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(entry->location.compose, &new_element); - }else if(strcmp(tok, "DW_OP_constu") == 0){ - dw_location_t new_element = xbt_new0(s_dw_location_t, 1); - new_element->type = e_dw_constant; - new_element->location.constant.is_signed = 0; - new_element->location.constant.bytes = 1; - 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(entry->location.compose, &new_element); - }else if(strcmp(tok, "DW_OP_consts") == 0){ - dw_location_t new_element = xbt_new0(s_dw_location_t, 1); - new_element->type = e_dw_constant; - new_element->location.constant.is_signed = 1; - new_element->location.constant.bytes = 1; - new_element->location.constant.value = atoi(xbt_dynar_get_as(tokens, ++cursor, char*)); - xbt_dynar_push(entry->location.compose, &new_element); - }else if(strcmp(tok, "DW_OP_const1u") == 0 || - strcmp(tok, "DW_OP_const2u") == 0 || - strcmp(tok, "DW_OP_const4u") == 0 || - strcmp(tok, "DW_OP_const8u") == 0){ - dw_location_t new_element = xbt_new0(s_dw_location_t, 1); - new_element->type = e_dw_constant; - new_element->location.constant.is_signed = 0; - new_element->location.constant.bytes = tok[11] - '0'; - 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(entry->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_constant; - new_element->location.constant.is_signed = 1; - new_element->location.constant.bytes = tok[11] - '0'; - new_element->location.constant.value = atoi(xbt_dynar_get_as(tokens, ++cursor, char*)); - xbt_dynar_push(entry->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(entry->location.compose, &new_element); - } - - cursor++; - - } - - xbt_dynar_free(&tokens); - - return e_dw_compose; - - }else{ - - if(strncmp(expr, "DW_OP_reg", 9) == 0){ - entry->type = e_dw_register; - entry->location.reg = atoi(strtok(expr,"DW_OP_reg")); - }else if(strncmp(expr, "DW_OP_breg", 10) == 0){ - entry->type = e_dw_bregister_op; - tok = strtok(expr, "+"); - entry->location.breg_op.offset = atoi(strtok(NULL, "+")); - entry->location.breg_op.reg = atoi(strtok(tok, "DW_OP_breg")); - }else{ - entry->type = e_dw_unsupported; - } - xbt_dynar_free(&tokens); - return entry->type; - - } - -}