X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/3a9ba94edbd1ef8375ba5e7bca9b02f45d4d8b89..02f267e2895f3985fe73344a8b96ac05363b8b62:/src/mc/mc_private.h diff --git a/src/mc/mc_private.h b/src/mc/mc_private.h index c0b6287683..f6087c6678 100644 --- a/src/mc/mc_private.h +++ b/src/mc/mc_private.h @@ -1,4 +1,5 @@ -/* Copyright (c) 2007-2012 Da SimGrid Team. All rights reserved. */ +/* Copyright (c) 2007-2014. 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. */ @@ -6,212 +7,86 @@ #ifndef MC_PRIVATE_H #define MC_PRIVATE_H +#include + #include "simgrid_config.h" #include +#include +#include #ifndef WIN32 #include #endif +#include + #include "mc/mc.h" +#include "mc_base.h" #include "mc/datatypes.h" #include "xbt/fifo.h" #include "xbt/config.h" + #include "xbt/function_types.h" #include "xbt/mmalloc.h" #include "../simix/smx_private.h" +#include "../xbt/mmalloc/mmprivate.h" #include "xbt/automaton.h" #include "xbt/hash.h" #include "msg/msg.h" #include "msg/datatypes.h" #include "xbt/strbuff.h" +#include "xbt/parmap.h" + +#include "mc_forward.h" -/****************************** Snapshots ***********************************/ - -#define NB_REGIONS 3 /* binary data (data + BSS) (type = 2), libsimgrid data (data + BSS) (type = 1), std_heap (type = 0)*/ - -typedef struct s_mc_mem_region{ - void *start_addr; - void *data; - size_t size; -} s_mc_mem_region_t, *mc_mem_region_t; - -typedef struct s_mc_snapshot{ - size_t heap_bytes_used; - mc_mem_region_t regions[NB_REGIONS]; - int nb_processes; - size_t *stack_sizes; - xbt_dynar_t stacks; - xbt_dynar_t to_ignore; -} s_mc_snapshot_t, *mc_snapshot_t; - -typedef struct s_mc_snapshot_stack{ - xbt_strbuff_t local_variables; - void *stack_pointer; -}s_mc_snapshot_stack_t, *mc_snapshot_stack_t; - -typedef struct s_mc_global_t{ - mc_snapshot_t snapshot; - int raw_mem_set; -}s_mc_global_t, *mc_global_t; - -//void MC_take_snapshot(mc_snapshot_t); -mc_snapshot_t SIMIX_pre_mc_snapshot(smx_simcall_t simcall); -mc_snapshot_t MC_take_snapshot(void); -void MC_restore_snapshot(mc_snapshot_t); -void MC_free_snapshot(mc_snapshot_t); -void snapshot_stack_free_voidp(void *s); +SG_BEGIN_DECL() + +typedef struct s_mc_function_index_item s_mc_function_index_item_t, *mc_function_index_item_t; /********************************* MC Global **********************************/ -extern double *mc_time; + +/** Initialisation of the model-checker + * + * @param pid PID of the target process + * @param socket FD for the communication socket **in server mode** (or -1 otherwise) + */ +void MC_init_pid(pid_t pid, int socket); + +extern FILE *dot_output; +extern const char* colors[13]; +extern xbt_parmap_t parmap; + +extern int user_max_depth_reached; int MC_deadlock_check(void); void MC_replay(xbt_fifo_t stack, int start); void MC_replay_liveness(xbt_fifo_t stack, int all_stack); -void MC_wait_for_requests(void); void MC_show_deadlock(smx_simcall_t req); void MC_show_stack_safety(xbt_fifo_t stack); void MC_dump_stack_safety(xbt_fifo_t stack); -int SIMIX_pre_mc_random(smx_simcall_t simcall, int min, int max); - -/********************************* Requests ***********************************/ -int MC_request_depend(smx_simcall_t req1, smx_simcall_t req2); -char* MC_request_to_string(smx_simcall_t req, int value); -unsigned int MC_request_testany_fail(smx_simcall_t req); -/*int MC_waitany_is_enabled_by_comm(smx_req_t req, unsigned int comm);*/ -int MC_request_is_visible(smx_simcall_t req); -int MC_request_is_enabled(smx_simcall_t req); -int MC_request_is_enabled_by_idx(smx_simcall_t req, unsigned int idx); -int MC_process_is_enabled(smx_process_t process); - - -/******************************** States **************************************/ -/* Possible exploration status of a process in a state */ -typedef enum { - MC_NOT_INTERLEAVE=0, /* Do not interleave (do not execute) */ - MC_INTERLEAVE, /* Interleave the process (one or more request) */ - MC_DONE /* Already interleaved */ -} e_mc_process_state_t; - -/* On every state, each process has an entry of the following type */ -typedef struct mc_procstate{ - e_mc_process_state_t state; /* Exploration control information */ - unsigned int interleave_count; /* Number of times that the process was - interleaved */ -} s_mc_procstate_t, *mc_procstate_t; - -/* An exploration state is composed of: */ -typedef struct mc_state { - unsigned long max_pid; /* Maximum pid at state's creation time */ - mc_procstate_t proc_status; /* State's exploration status by process */ - s_smx_action_t internal_comm; /* To be referenced by the internal_req */ - s_smx_simcall_t internal_req; /* Internal translation of request */ - s_smx_simcall_t executed_req; /* The executed request of the state */ - int req_num; /* The request number (in the case of a - multi-request like waitany ) */ - mc_snapshot_t system_state; /* Snapshot of system state */ -} s_mc_state_t, *mc_state_t; - -mc_state_t MC_state_new(void); -void MC_state_delete(mc_state_t state); -void MC_state_interleave_process(mc_state_t state, smx_process_t process); -unsigned int MC_state_interleave_size(mc_state_t state); -int MC_state_process_is_done(mc_state_t state, smx_process_t process); -void MC_state_set_executed_request(mc_state_t state, smx_simcall_t req, int value); -smx_simcall_t MC_state_get_executed_request(mc_state_t state, int *value); -smx_simcall_t MC_state_get_internal_request(mc_state_t state); -smx_simcall_t MC_state_get_request(mc_state_t state, int *value); -void MC_state_remove_interleave_process(mc_state_t state, smx_process_t process); +/** Stack (of `mc_state_t`) representing the current position of the + * the MC in the exploration graph + * + * It is managed by its head (`xbt_fifo_shift` and `xbt_fifo_unshift`). + */ +extern xbt_fifo_t mc_stack; + +int get_search_interval(xbt_dynar_t list, void *ref, int *min, int *max); + /****************************** Statistics ************************************/ + typedef struct mc_stats { unsigned long state_size; unsigned long visited_states; - unsigned long expanded_states; - unsigned long executed_transitions; -} s_mc_stats_t, *mc_stats_t; - -typedef struct mc_stats_pair { - //unsigned long pair_size; unsigned long visited_pairs; + unsigned long expanded_states; unsigned long expanded_pairs; unsigned long executed_transitions; -} s_mc_stats_pair_t, *mc_stats_pair_t; +} s_mc_stats_t, *mc_stats_t; extern mc_stats_t mc_stats; -extern mc_stats_pair_t mc_stats_pair; - -void MC_print_statistics(mc_stats_t); -void MC_print_statistics_pairs(mc_stats_pair_t); - -/********************************** MEMORY ******************************/ -/* The possible memory modes for the modelchecker are standard and raw. */ -/* Normally the system should operate in std, for switching to raw mode */ -/* you must wrap the code between MC_SET_RAW_MODE and MC_UNSET_RAW_MODE */ - -extern void *std_heap; -extern void *raw_heap; - - -/* FIXME: Horrible hack! because the mmalloc library doesn't provide yet of */ -/* an API to query about the status of a heap, we simply call mmstats and */ -/* because I now how does structure looks like, then I redefine it here */ - -/* struct mstats { */ -/* size_t bytes_total; /\* Total size of the heap. *\/ */ -/* size_t chunks_used; /\* Chunks allocated by the user. *\/ */ -/* size_t bytes_used; /\* Byte total of user-allocated chunks. *\/ */ -/* size_t chunks_free; /\* Chunks in the free list. *\/ */ -/* size_t bytes_free; /\* Byte total of chunks in the free list. *\/ */ -/* }; */ - -#define MC_SET_RAW_MEM mmalloc_set_current_heap(raw_heap) -#define MC_UNSET_RAW_MEM mmalloc_set_current_heap(std_heap) - -/******************************* MEMORY MAPPINGS ***************************/ -/* These functions and data structures implements a binary interface for */ -/* the proc maps ascii interface */ - -/* Each field is defined as documented in proc's manual page */ -typedef struct s_map_region { - - void *start_addr; /* Start address of the map */ - void *end_addr; /* End address of the map */ - int prot; /* Memory protection */ - int flags; /* Aditional memory flags */ - void *offset; /* Offset in the file/whatever */ - char dev_major; /* Major of the device */ - char dev_minor; /* Minor of the device */ - unsigned long inode; /* Inode in the device */ - char *pathname; /* Path name of the mapped file */ - -} s_map_region_t; - -typedef struct s_memory_map { - - s_map_region_t *regions; /* Pointer to an array of regions */ - int mapsize; /* Number of regions in the memory */ - -} s_memory_map_t, *memory_map_t; - -memory_map_t get_memory_map(void); -void free_memory_map(memory_map_t map); -void get_libsimgrid_plt_section(void); -void get_binary_plt_section(void); - -extern void *start_data_libsimgrid; -extern void *start_data_binary; -extern void *start_bss_binary; -extern char *libsimgrid_path; -extern void *start_text_libsimgrid; -extern void *start_bss_libsimgrid; -extern void *start_plt_libsimgrid; -extern void *end_plt_libsimgrid; -extern void *start_plt_binary; -extern void *end_plt_binary; -extern void *start_got_plt_libsimgrid; -extern void *end_got_plt_libsimgrid; -extern void *start_got_plt_binary; -extern void *end_got_plt_binary; + +void MC_print_statistics(mc_stats_t stats); /********************************** Snapshot comparison **********************************/ @@ -219,220 +94,71 @@ typedef struct s_mc_comparison_times{ double nb_processes_comparison_time; double bytes_used_comparison_time; double stacks_sizes_comparison_time; - double binary_global_variables_comparison_time; - double libsimgrid_global_variables_comparison_time; + double global_variables_comparison_time; double heap_comparison_time; double stacks_comparison_time; }s_mc_comparison_times_t, *mc_comparison_times_t; -extern mc_comparison_times_t mc_comp_times; -extern double mc_snapshot_comparison_time; +extern __thread mc_comparison_times_t mc_comp_times; +extern __thread double mc_snapshot_comparison_time; -int snapshot_compare(mc_snapshot_t s1, mc_snapshot_t s2); -int SIMIX_pre_mc_compare_snapshots(smx_simcall_t simcall, mc_snapshot_t s1, mc_snapshot_t s2); +int snapshot_compare(void *state1, void *state2); void print_comparison_times(void); //#define MC_DEBUG 1 -//#define MC_VERBOSE 1 - -/********************************** DPOR for safety **************************************/ -typedef enum { - e_mc_reduce_unset, - e_mc_reduce_none, - e_mc_reduce_dpor -} e_mc_reduce_t; - -extern e_mc_reduce_t mc_reduce_kind; -extern mc_global_t initial_state_safety; - -void MC_dpor_init(void); -void MC_dpor(void); -void MC_init(void); - -typedef struct s_mc_safety_visited_state{ - mc_snapshot_t system_state; - int num; -}s_mc_safety_visited_state_t, *mc_safety_visited_state_t; - - -/********************************** Double-DFS for liveness property**************************************/ - -extern xbt_fifo_t mc_stack_liveness; -extern mc_global_t initial_state_liveness; -extern xbt_automaton_t _mc_property_automaton; -extern int compare; -extern xbt_dynar_t mc_stack_comparison_ignore; -extern xbt_dynar_t mc_data_bss_comparison_ignore; - - -typedef struct s_mc_pair{ - mc_snapshot_t system_state; - mc_state_t graph_state; - xbt_state_t automaton_state; -}s_mc_pair_t, *mc_pair_t; - -typedef struct s_mc_pair_reached{ - int nb; - xbt_state_t automaton_state; - xbt_dynar_t prop_ato; - mc_snapshot_t system_state; -}s_mc_pair_reached_t, *mc_pair_reached_t; - -typedef struct s_mc_pair_visited{ - xbt_state_t automaton_state; - xbt_dynar_t prop_ato; - mc_snapshot_t system_state; -}s_mc_pair_visited_t, *mc_pair_visited_t; - -int MC_automaton_evaluate_label(xbt_exp_label_t l); - -int reached(xbt_state_t st); -void set_pair_reached(xbt_state_t st); -int visited(xbt_state_t st); - -void MC_pair_delete(mc_pair_t pair); -mc_state_t MC_state_pair_new(void); -void pair_reached_free(mc_pair_reached_t pair); -void pair_reached_free_voidp(void *p); -void pair_visited_free(mc_pair_visited_t pair); -void pair_visited_free_voidp(void *p); -void MC_init_memory_map_info(void); - -int get_heap_region_index(mc_snapshot_t s); - -/* **** Double-DFS stateless **** */ - -typedef struct s_mc_pair_stateless{ - mc_state_t graph_state; - xbt_state_t automaton_state; - int requests; -}s_mc_pair_stateless_t, *mc_pair_stateless_t; - -mc_pair_stateless_t new_pair_stateless(mc_state_t sg, xbt_state_t st, int r); -void MC_ddfs_init(void); -void MC_ddfs(int search_cycle); -void MC_show_stack_liveness(xbt_fifo_t stack); -void MC_dump_stack_liveness(xbt_fifo_t stack); -void pair_stateless_free(mc_pair_stateless_t pair); -void pair_stateless_free_voidp(void *p); - -/********************************** Configuration of MC **************************************/ -extern xbt_fifo_t mc_stack_safety; - -/****** Core dump ******/ - -int create_dump(int pair); - -/****** Local variables with DWARF ******/ - -typedef enum { - e_dw_loclist, - e_dw_register, - e_dw_bregister_op, - e_dw_lit, - e_dw_fbregister_op, - e_dw_piece, - e_dw_arithmetic, - e_dw_plus_uconst, - e_dw_compose, - e_dw_deref, - e_dw_uconstant, - e_dw_sconstant, - e_dw_unsupported -} e_dw_location_type; - -typedef struct s_dw_location{ - e_dw_location_type type; - union{ - - xbt_dynar_t loclist; - - int reg; - - struct{ - unsigned int reg; - int offset; - }breg_op; - - unsigned int lit; - - int fbreg_op; - - int piece; - - unsigned short int deref_size; - - xbt_dynar_t compose; - - char *arithmetic; - - struct{ - int bytes; - long unsigned int value; - }uconstant; - - struct{ - int bytes; - long signed int value; - }sconstant; - - unsigned int plus_uconst; - - }location; -}s_dw_location_t, *dw_location_t; - -typedef struct s_dw_location_entry{ - long lowpc; - long highpc; - dw_location_t location; -}s_dw_location_entry_t, *dw_location_entry_t; - -typedef struct s_dw_local_variable{ - char *name; - dw_location_t location; -}s_dw_local_variable_t, *dw_local_variable_t; +#define MC_VERBOSE 1 -typedef struct s_dw_frame{ - char *name; - void *low_pc; - void *high_pc; - dw_location_t frame_base; - xbt_dict_t variables; - unsigned long int start; - unsigned long int end; -}s_dw_frame_t, *dw_frame_t; +/********************************** Variables with DWARF **********************************/ -/* FIXME : implement free functions for each structure */ +void MC_find_object_address(memory_map_t maps, mc_object_info_t result); -extern xbt_dict_t mc_local_variables; +/********************************** Miscellaneous **********************************/ -typedef struct s_variable_value{ - char *type; - - union{ - void *address; - long int res; - }value; -}s_variable_value_t, *variable_value_t; - -void variable_value_free_voidp(void* v); -void variable_value_free(variable_value_t v); - -void MC_get_local_variables(const char *elf_file, xbt_dict_t location_list, xbt_dict_t *variables); -void print_local_variables(xbt_dict_t list); -xbt_dict_t MC_get_location_list(const char *elf_file); - -/**** Global variables ****/ - -typedef struct s_global_variable{ +typedef struct s_local_variable{ + dw_frame_t subprogram; + unsigned long ip; char *name; - size_t size; + dw_type_t type; void *address; -}s_global_variable_t, *global_variable_t; - -void global_variable_free(global_variable_t v); -void global_variable_free_voidp(void *v); - -extern xbt_dynar_t mc_global_variables; + int region; +}s_local_variable_t, *local_variable_t; + +/* *********** Sets *********** */ + +typedef struct s_mc_address_set *mc_address_set_t; + +mc_address_set_t mc_address_set_new(void); +void mc_address_set_free(mc_address_set_t* p); +void mc_address_add(mc_address_set_t p, const void* value); +bool mc_address_test(mc_address_set_t p, const void* value); + +/* *********** Hash *********** */ + +/** \brief Hash the current state + * \param num_state number of states + * \param stacks stacks (mc_snapshot_stak_t) used fot the stack unwinding informations + * \result resulting hash + * */ +uint64_t mc_hash_processes_state(int num_state, xbt_dynar_t stacks); + +/* *********** Snapshot *********** */ + +#define MC_LOG_REQUEST(log, req, value) \ + if (XBT_LOG_ISENABLED(log, xbt_log_priority_debug)) { \ + char* req_str = MC_request_to_string(req, value); \ + XBT_DEBUG("Execute: %s", req_str); \ + xbt_free(req_str); \ + } + +/** @brief Dump the stacks of the application processes + * + * This functions is currently not used but it is quite convenient + * to call from the debugger. + * + * Does not work when an application thread is running. + */ +void MC_dump_stacks(FILE* file); + +SG_END_DECL() #endif