/* 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. */
+#include <string.h>
+
#include "mc_base.h"
#ifndef _XBT_WIN32
#include <unistd.h>
-#include <sys/types.h>
#include <sys/wait.h>
#include <sys/time.h>
-#include <sys/mman.h>
-#include <libgen.h>
#endif
#include "simgrid/sg_config.h"
#include "xbt/dict.h"
#ifdef HAVE_MC
-#define UNW_LOCAL_ONLY
#include <libunwind.h>
+#include <xbt/mmalloc.h>
#include "../xbt/mmalloc/mmprivate.h"
#include "mc_object_info.h"
#include "mc_snapshot.h"
#include "mc_liveness.h"
#include "mc_private.h"
+#include "mc_unw.h"
+#include "mc_smx.h"
#endif
#include "mc_record.h"
+#include "mc_protocol.h"
+#include "mc_client.h"
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_global, mc,
"Logging specific to MC (global)");
+e_mc_mode_t mc_mode;
+
double *mc_time = NULL;
#ifdef HAVE_MC
/* Liveness */
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;
-
/* Dot output */
FILE *dot_output = NULL;
const char *colors[13];
}
-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 !");
-}
-
-
-mc_model_checker_t mc_model_checker = NULL;
-
-mc_model_checker_t MC_model_checker_new()
+void MC_init()
{
- mc_model_checker_t mc = xbt_new0(s_mc_model_checker_t, 1);
- mc->pages = mc_pages_store_new();
- mc->fd_clear_refs = -1;
- mc->fd_pagemap = -1;
- return mc;
-}
-
-void MC_model_checker_delete(mc_model_checker_t mc) {
- mc_pages_store_delete(mc->pages);
- if(mc->record)
- xbt_dynar_free(&mc->record);
+ MC_init_pid(getpid(), -1);
}
-void MC_init()
+void MC_init_pid(pid_t pid, int socket)
{
- int raw_mem_set = (mmalloc_get_current_heap() == mc_heap);
-
- mc_time = xbt_new0(double, simix_process_maxpid);
+ if (mc_mode == MC_MODE_NONE) {
+ if (getenv(MC_ENV_SOCKET_FD)) {
+ mc_mode = MC_MODE_CLIENT;
+ } else {
+ mc_mode = MC_MODE_STANDALONE;
+ }
+ }
/* Initialize the data structures that must be persistent across every
iteration of the model-checker (in RAW memory) */
- MC_SET_MC_HEAP;
+ xbt_mheap_t heap = mmalloc_set_current_heap(mc_heap);
- mc_model_checker = MC_model_checker_new();
+ mc_model_checker = MC_model_checker_new(pid, socket);
+ if (mc_mode == MC_MODE_SERVER) {
+ int maxpid;
+ MC_process_read_variable(&mc_model_checker->process, "simix_process_maxpid",
+ &maxpid, sizeof(maxpid));
+ simix_process_maxpid = maxpid;
+ }
+
+ mmalloc_set_current_heap(std_heap);
+ mc_time = xbt_new0(double, MC_smx_get_maxpid());
+ mmalloc_set_current_heap(mc_heap);
mc_comp_times = xbt_new0(s_mc_comparison_times_t, 1);
mc_stats = xbt_new0(s_mc_stats_t, 1);
mc_stats->state_size = 1;
- MC_init_memory_map_info();
- MC_init_debug_info(); /* FIXME : get debug information only if liveness verification or visited state reduction */
-
if ((_sg_mc_dot_output_file != NULL) && (_sg_mc_dot_output_file[0] != '\0'))
MC_init_dot_output();
/* SIMIX */
MC_ignore_global_variable("smx_total_comms");
- MC_ignore_heap(mc_time, simix_process_maxpid * sizeof(double));
+ if (mc_mode == MC_MODE_STANDALONE || mc_mode == MC_MODE_CLIENT) {
+ /* Those requests are handled on the client side and propagated by message
+ * to the server: */
+
+ MC_ignore_heap(mc_time, MC_smx_get_maxpid() * sizeof(double));
- smx_process_t process;
- xbt_swag_foreach(process, simix_global->process_list) {
- MC_ignore_heap(&(process->process_hookup), sizeof(process->process_hookup));
+ 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_MC_HEAP;
+ mmalloc_set_current_heap(heap);
+
+ if (mc_mode == MC_MODE_CLIENT) {
+ // This will move somehwere else:
+ MC_client_handle_messages();
+ }
}
static void MC_modelcheck_comm_determinism_init(void)
{
-
- int mc_mem_set = (mmalloc_get_current_heap() == mc_heap);
-
MC_init();
- if (!mc_mem_set)
- MC_SET_MC_HEAP;
+ xbt_mheap_t heap = mmalloc_set_current_heap(mc_heap);
/* Create exploration stack */
mc_stack = xbt_fifo_new();
MC_modelcheck_comm_determinism();
- if(mc_mem_set)
- MC_SET_MC_HEAP;
-
+ mmalloc_set_current_heap(heap);
}
static void MC_modelcheck_safety_init(void)
{
- int mc_mem_set = (mmalloc_get_current_heap() == mc_heap);
-
_sg_mc_safety = 1;
MC_init();
- if (!mc_mem_set)
- MC_SET_MC_HEAP;
+ xbt_mheap_t heap = mmalloc_set_current_heap(mc_heap);
/* Create exploration stack */
mc_stack = xbt_fifo_new();
MC_modelcheck_safety();
- if (mc_mem_set)
- MC_SET_MC_HEAP;
+ mmalloc_set_current_heap(heap);
xbt_abort();
//MC_exit();
static void MC_modelcheck_liveness_init()
{
-
- int mc_mem_set = (mmalloc_get_current_heap() == mc_heap);
-
_sg_mc_liveness = 1;
MC_init();
- if (!mc_mem_set)
- MC_SET_MC_HEAP;
+ xbt_mheap_t heap = mmalloc_set_current_heap(mc_heap);
/* Create exploration stack */
mc_stack = xbt_fifo_new();
MC_print_statistics(mc_stats);
xbt_free(mc_time);
- if (mc_mem_set)
- MC_SET_MC_HEAP;
+ mmalloc_set_current_heap(heap);
}
if (_sg_mc_comms_determinism || _sg_mc_send_determinism) {
XBT_INFO("Check communication determinism");
+ mc_reduce_kind = e_mc_reduce_none;
MC_modelcheck_comm_determinism_init();
} else if (!_sg_mc_property_file || _sg_mc_property_file[0] == '\0') {
if(_sg_mc_termination){
mc_reduce_kind = e_mc_reduce_none;
}else{
XBT_INFO("Check a safety property");
- mc_reduce_kind = e_mc_reduce_dpor;
}
MC_modelcheck_safety_init();
} else {
int MC_deadlock_check()
{
+ if (mc_mode == MC_MODE_SERVER) {
+ int res;
+ if ((res = MC_protocol_send_simple_message(mc_model_checker->process.socket,
+ MC_MESSAGE_DEADLOCK_CHECK)))
+ xbt_die("Could not check deadlock state");
+ s_mc_int_message_t message;
+ ssize_t s = MC_receive_message(mc_model_checker->process.socket, &message, sizeof(message));
+ if (s == -1)
+ xbt_die("Could not receive message");
+ else if (s != sizeof(message) || message.type != MC_MESSAGE_DEADLOCK_CHECK_REPLY) {
+ xbt_die("Unexpected message, expected MC_MESSAGE_DEADLOCK_CHECK_REPLY %i %i vs %i %i",
+ (int) s, (int) message.type, (int) sizeof(message), (int) MC_MESSAGE_DEADLOCK_CHECK_REPLY
+ );
+ }
+ else
+ return message.value;
+ }
+
int deadlock = FALSE;
smx_process_t process;
if (xbt_swag_size(simix_global->process_list)) {
deadlock = TRUE;
- xbt_swag_foreach(process, simix_global->process_list) {
- if (MC_request_is_enabled(&process->simcall)) {
+ MC_EACH_SIMIX_PROCESS(process,
+ if (MC_process_is_enabled(process)) {
deadlock = FALSE;
break;
}
- }
+ );
}
return deadlock;
}
current_comm = xbt_dynar_get_as(simcall_comm_waitany__get__comms(req), value, smx_synchro_t);
complete_comm_pattern(pattern, current_comm, req->issuer->pid, backtracking);
}
+ break;
default:
xbt_die("Unexpected call type %i", (int)call_type);
}
}
-static void MC_restore_communications_pattern(mc_state_t state) {
- mc_list_comm_pattern_t list_process_comm;
- unsigned int cursor, cursor2;
- xbt_dynar_foreach(initial_communications_pattern, cursor, list_process_comm){
- list_process_comm->index_comm = (int)xbt_dynar_get_as(state->index_comm, cursor, int);
- }
- mc_comm_pattern_t comm;
- cursor = 0;
- xbt_dynar_t initial_incomplete_process_comms, incomplete_process_comms;
- for(int i=0; i<simix_process_maxpid; i++){
- initial_incomplete_process_comms = xbt_dynar_get_as(incomplete_communications_pattern, i, xbt_dynar_t);
- xbt_dynar_reset(initial_incomplete_process_comms);
- incomplete_process_comms = xbt_dynar_get_as(state->incomplete_comm_pattern, i, xbt_dynar_t);
- xbt_dynar_foreach(incomplete_process_comms, cursor2, comm) {
- mc_comm_pattern_t copy_comm = xbt_new0(s_mc_comm_pattern_t, 1);
- copy_comm->index = comm->index;
- copy_comm->type = comm->type;
- copy_comm->comm = comm->comm;
- copy_comm->rdv = strdup(comm->rdv);
- copy_comm->data_size = -1;
- copy_comm->data = NULL;
- if(comm->type == SIMIX_COMM_SEND){
- copy_comm->src_proc = comm->src_proc;
- copy_comm->src_host = comm->src_host;
- if(comm->data != NULL){
- copy_comm->data_size = comm->data_size;
- copy_comm->data = xbt_malloc0(comm->data_size);
- memcpy(copy_comm->data, comm->data, comm->data_size);
- }
- }else{
- copy_comm->dst_proc = comm->dst_proc;
- copy_comm->dst_host = comm->dst_host;
- }
- xbt_dynar_push(initial_incomplete_process_comms, ©_comm);
- }
- }
-}
-
/**
* \brief Re-executes from the state at position start all the transitions indicated by
* a given model-checker stack.
*/
void MC_replay(xbt_fifo_t stack)
{
- int raw_mem = (mmalloc_get_current_heap() == mc_heap);
+ xbt_mheap_t heap = mmalloc_set_current_heap(mc_heap);
int value, count = 1, j;
char *req_str;
MC_SET_MC_HEAP;
if (_sg_mc_comms_determinism || _sg_mc_send_determinism) {
- for (j=0; j<simix_process_maxpid; j++) {
+ for (j=0; j < simix_process_maxpid; j++) {
xbt_dynar_reset((xbt_dynar_t)xbt_dynar_get_as(incomplete_communications_pattern, j, xbt_dynar_t));
((mc_list_comm_pattern_t)xbt_dynar_get_as(initial_communications_pattern, j, mc_list_comm_pattern_t))->index_comm = 0;
}
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 */
- req = &saved_req->issuer->simcall;
+
+ const smx_process_t issuer = MC_smx_simcall_get_issuer(saved_req);
+ req = &issuer->simcall;
/* Debug information */
if (XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)) {
if (_sg_mc_comms_determinism || _sg_mc_send_determinism)
call = mc_get_call_type(req);
- SIMIX_simcall_handle(req, value);
+ MC_simcall_handle(req, value);
MC_SET_MC_HEAP;
if (_sg_mc_comms_determinism || _sg_mc_send_determinism)
}
XBT_DEBUG("**** End Replay ****");
-
- if (raw_mem)
- MC_SET_MC_HEAP;
- else
- MC_SET_STD_HEAP;
-
-
+ mmalloc_set_current_heap(heap);
}
void MC_replay_liveness(xbt_fifo_t stack)
if (saved_req != NULL) {
/* 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 */
- req = &saved_req->issuer->simcall;
+ const smx_process_t issuer = MC_smx_simcall_get_issuer(saved_req);
+ req = &issuer->simcall;
/* Debug information */
if (XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)) {
}
- SIMIX_simcall_handle(req, value);
+ MC_simcall_handle(req, value);
MC_wait_for_requests();
}
*/
void MC_dump_stack_safety(xbt_fifo_t stack)
{
-
- int raw_mem_set = (mmalloc_get_current_heap() == mc_heap);
+ xbt_mheap_t heap = mmalloc_set_current_heap(mc_heap);
MC_show_stack_safety(stack);
MC_SET_MC_HEAP;
while ((state = (mc_state_t) xbt_fifo_pop(stack)) != NULL)
MC_state_delete(state, !state->in_visited_states ? 1 : 0);
- MC_SET_STD_HEAP;
-
- if (raw_mem_set)
- MC_SET_MC_HEAP;
- else
- MC_SET_STD_HEAP;
-
+ mmalloc_set_current_heap(heap);
}
void MC_show_stack_safety(xbt_fifo_t stack)
{
-
- int raw_mem_set = (mmalloc_get_current_heap() == mc_heap);
-
- MC_SET_MC_HEAP;
+ xbt_mheap_t heap = mmalloc_set_current_heap(mc_heap);
int value;
mc_state_t state;
}
}
- if (!raw_mem_set)
- MC_SET_STD_HEAP;
+ mmalloc_set_current_heap(heap);
}
void MC_show_deadlock(smx_simcall_t req)
void MC_dump_stack_liveness(xbt_fifo_t stack)
{
-
- int raw_mem_set = (mmalloc_get_current_heap() == mc_heap);
-
+ xbt_mheap_t heap = mmalloc_set_current_heap(mc_heap);
mc_pair_t pair;
-
- MC_SET_MC_HEAP;
while ((pair = (mc_pair_t) xbt_fifo_pop(stack)) != NULL)
MC_pair_delete(pair);
- MC_SET_STD_HEAP;
-
- if (raw_mem_set)
- MC_SET_MC_HEAP;
-
+ mmalloc_set_current_heap(heap);
}
void MC_print_statistics(mc_stats_t stats)
{
- xbt_mheap_t previous_heap = mmalloc_get_current_heap();
-
if(_sg_mc_comms_determinism) {
if (!initial_global_state->recv_deterministic && initial_global_state->send_deterministic){
XBT_INFO("******************************************************");
XBT_INFO("%s", initial_global_state->send_diff);
}
}
+
if (stats->expanded_pairs == 0) {
XBT_INFO("Expanded states = %lu", stats->expanded_states);
XBT_INFO("Visited states = %lu", stats->visited_states);
XBT_INFO("Visited pairs = %lu", stats->visited_pairs);
}
XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
- MC_SET_MC_HEAP;
+ xbt_mheap_t heap = mmalloc_set_current_heap(mc_heap);
if ((_sg_mc_dot_output_file != NULL) && (_sg_mc_dot_output_file[0] != '\0')) {
fprintf(dot_output, "}\n");
fclose(dot_output);
if (_sg_mc_comms_determinism)
XBT_INFO("Recv-deterministic : %s", !initial_global_state->recv_deterministic ? "No" : "Yes");
}
- mmalloc_set_current_heap(previous_heap);
-}
-
-void MC_assert(int prop)
-{
- if (MC_is_active() && !prop) {
- XBT_INFO("**************************");
- XBT_INFO("*** PROPERTY NOT VALID ***");
- XBT_INFO("**************************");
- XBT_INFO("Counter-example execution trace:");
- MC_record_dump_path(mc_stack);
- MC_dump_stack_safety(mc_stack);
- MC_print_statistics(mc_stats);
- xbt_abort();
- }
-}
-
-void MC_cut(void)
-{
- user_max_depth_reached = 1;
+ mmalloc_set_current_heap(heap);
}
void MC_automaton_load(const char *file)
{
-
- int raw_mem_set = (mmalloc_get_current_heap() == mc_heap);
-
- MC_SET_MC_HEAP;
+ xbt_mheap_t heap = mmalloc_set_current_heap(mc_heap);
if (_mc_property_automaton == NULL)
_mc_property_automaton = xbt_automaton_new();
xbt_automaton_load(_mc_property_automaton, file);
-
- MC_SET_STD_HEAP;
-
- if (raw_mem_set)
- MC_SET_MC_HEAP;
-
+ mmalloc_set_current_heap(heap);
}
-void MC_automaton_new_propositional_symbol(const char *id, void *fct)
+static void register_symbol(xbt_automaton_propositional_symbol_t symbol)
{
+ if (mc_mode != MC_MODE_CLIENT)
+ return;
+ s_mc_register_symbol_message_t message;
+ message.type = MC_MESSAGE_REGISTER_SYMBOL;
+ const char* name = xbt_automaton_propositional_symbol_get_name(symbol);
+ if (strlen(name) + 1 > sizeof(message.name))
+ xbt_die("Symbol is too long");
+ strncpy(message.name, name, sizeof(message.name));
+ message.callback = xbt_automaton_propositional_symbol_get_callback(symbol);
+ message.data = xbt_automaton_propositional_symbol_get_data(symbol);
+ MC_client_send_message(&message, sizeof(message));
+}
- int raw_mem_set = (mmalloc_get_current_heap() == mc_heap);
-
- MC_SET_MC_HEAP;
+void MC_automaton_new_propositional_symbol(const char *id, int(*fct)(void))
+{
+ xbt_mheap_t heap = mmalloc_set_current_heap(mc_heap);
if (_mc_property_automaton == NULL)
_mc_property_automaton = xbt_automaton_new();
- xbt_automaton_propositional_symbol_new(_mc_property_automaton, id, fct);
-
- MC_SET_STD_HEAP;
+ xbt_automaton_propositional_symbol_t symbol = xbt_automaton_propositional_symbol_new(_mc_property_automaton, id, fct);
+ register_symbol(symbol);
+ mmalloc_set_current_heap(heap);
+}
- if (raw_mem_set)
- MC_SET_MC_HEAP;
+void MC_automaton_new_propositional_symbol_pointer(const char *id, int* value)
+{
+ xbt_mheap_t heap = mmalloc_set_current_heap(mc_heap);
+ if (_mc_property_automaton == NULL)
+ _mc_property_automaton = xbt_automaton_new();
+ xbt_automaton_propositional_symbol_t symbol = xbt_automaton_propositional_symbol_new_pointer(_mc_property_automaton, id, value);
+ register_symbol(symbol);
+ mmalloc_set_current_heap(heap);
+}
+void MC_automaton_new_propositional_symbol_callback(const char* id,
+ xbt_automaton_propositional_symbol_callback_type callback,
+ void* data, xbt_automaton_propositional_symbol_free_function_type free_function)
+{
+ xbt_mheap_t heap = mmalloc_set_current_heap(mc_heap);
+ if (_mc_property_automaton == NULL)
+ _mc_property_automaton = xbt_automaton_new();
+ xbt_automaton_propositional_symbol_t symbol = xbt_automaton_propositional_symbol_new_callback(
+ _mc_property_automaton, id, callback, data, free_function);
+ register_symbol(symbol);
+ mmalloc_set_current_heap(heap);
}
void MC_dump_stacks(FILE* file)
{
- int raw_mem_set = (mmalloc_get_current_heap() == mc_heap);
- MC_SET_MC_HEAP;
+ xbt_mheap_t heap = mmalloc_set_current_heap(mc_heap);
int nstack = 0;
stack_region_t current_stack;
++nstack;
}
-
- if (raw_mem_set)
- MC_SET_MC_HEAP;
+ mmalloc_set_current_heap(heap);
}
#endif