1 /* Copyright (c) 2007-2014. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
10 #include <sys/types.h>
12 #include "simgrid_config.h"
19 #include <elfutils/libdw.h>
23 #include "mc/datatypes.h"
25 #include "xbt/config.h"
27 #include "xbt/function_types.h"
28 #include "xbt/mmalloc.h"
29 #include "../simix/smx_private.h"
30 #include "../xbt/mmalloc/mmprivate.h"
31 #include "xbt/automaton.h"
34 #include "msg/datatypes.h"
35 #include "xbt/strbuff.h"
36 #include "xbt/parmap.h"
38 #include "mc_forward.h"
42 typedef struct s_mc_function_index_item s_mc_function_index_item_t, *mc_function_index_item_t;
44 /****************************** Snapshots ***********************************/
46 extern xbt_dynar_t mc_checkpoint_ignore;
48 /********************************* MC Global **********************************/
50 /** Initialisation of the model-checker
52 * @param pid PID of the target process
53 * @param socket FD for the communication socket **in server mode** (or -1 otherwise)
55 void MC_init_pid(pid_t pid, int socket);
57 extern FILE *dot_output;
58 extern const char* colors[13];
59 extern xbt_parmap_t parmap;
61 extern int user_max_depth_reached;
63 int MC_deadlock_check(void);
64 void MC_replay(xbt_fifo_t stack, int start);
65 void MC_replay_liveness(xbt_fifo_t stack, int all_stack);
66 void MC_show_deadlock(smx_simcall_t req);
67 void MC_show_stack_safety(xbt_fifo_t stack);
68 void MC_dump_stack_safety(xbt_fifo_t stack);
70 /** Stack (of `mc_state_t`) representing the current position of the
71 * the MC in the exploration graph
73 * It is managed by its head (`xbt_fifo_shift` and `xbt_fifo_unshift`).
75 extern xbt_fifo_t mc_stack;
77 int get_search_interval(xbt_dynar_t list, void *ref, int *min, int *max);
80 /****************************** Statistics ************************************/
82 typedef struct mc_stats {
83 unsigned long state_size;
84 unsigned long visited_states;
85 unsigned long visited_pairs;
86 unsigned long expanded_states;
87 unsigned long expanded_pairs;
88 unsigned long executed_transitions;
89 } s_mc_stats_t, *mc_stats_t;
91 extern mc_stats_t mc_stats;
93 void MC_print_statistics(mc_stats_t stats);
95 /********************************** Snapshot comparison **********************************/
97 typedef struct s_mc_comparison_times{
98 double nb_processes_comparison_time;
99 double bytes_used_comparison_time;
100 double stacks_sizes_comparison_time;
101 double global_variables_comparison_time;
102 double heap_comparison_time;
103 double stacks_comparison_time;
104 }s_mc_comparison_times_t, *mc_comparison_times_t;
106 extern __thread mc_comparison_times_t mc_comp_times;
107 extern __thread double mc_snapshot_comparison_time;
109 int snapshot_compare(void *state1, void *state2);
110 void print_comparison_times(void);
115 /********************************** Variables with DWARF **********************************/
117 void MC_find_object_address(memory_map_t maps, mc_object_info_t result);
119 /********************************** Miscellaneous **********************************/
121 typedef struct s_local_variable{
122 dw_frame_t subprogram;
128 }s_local_variable_t, *local_variable_t;
130 /* *********** Sets *********** */
132 typedef struct s_mc_address_set *mc_address_set_t;
134 mc_address_set_t mc_address_set_new(void);
135 void mc_address_set_free(mc_address_set_t* p);
136 void mc_address_add(mc_address_set_t p, const void* value);
137 bool mc_address_test(mc_address_set_t p, const void* value);
139 /* *********** Hash *********** */
141 /** \brief Hash the current state
142 * \param num_state number of states
143 * \param stacks stacks (mc_snapshot_stak_t) used fot the stack unwinding informations
144 * \result resulting hash
146 uint64_t mc_hash_processes_state(int num_state, xbt_dynar_t stacks);
148 /* *********** Snapshot *********** */
150 #define MC_LOG_REQUEST(log, req, value) \
151 if (XBT_LOG_ISENABLED(log, xbt_log_priority_debug)) { \
152 char* req_str = MC_request_to_string(req, value); \
153 XBT_DEBUG("Execute: %s", req_str); \
157 /** @brief Dump the stacks of the application processes
159 * This functions is currently not used but it is quite convenient
160 * to call from the debugger.
162 * Does not work when an application thread is running.
164 void MC_dump_stacks(FILE* file);