-/* Copyright (c) 2008-2014. The SimGrid Team.
+/* Copyright (c) 2008-2015. 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. */
#include <cinttypes>
+#include <cassert>
+#include <cstddef>
+#include <cstdint>
-#include <assert.h>
-#include <string.h>
-#include <stdint.h>
+#include <vector>
#include "mc_base.h"
-#ifndef _XBT_WIN32
+#include "mc/mc.h"
+
+#ifndef _WIN32
#include <unistd.h>
#include <sys/wait.h>
#include <sys/time.h>
#endif
-#include "simgrid/sg_config.h"
-#include "../surf/surf_private.h"
-#include "../simix/smx_private.h"
-#include "xbt/fifo.h"
-#include "xbt/automaton.h"
-#include "xbt/dict.h"
-#include "mc_record.h"
+#include <xbt/fifo.h>
+#include <xbt/automaton.h>
+
+#include "src/simix/smx_process_private.h"
-#ifdef HAVE_MC
-#include "mc_server.h"
+#if HAVE_MC
#include <libunwind.h>
-#include <xbt/mmalloc.h>
-#include "../xbt/mmalloc/mmprivate.h"
-#include "mc_object_info.h"
-#include "mc_comm_pattern.h"
-#include "mc_request.h"
-#include "mc_safety.h"
-#include "mc_memory_map.h"
-#include "mc_snapshot.h"
-#include "mc_liveness.h"
-#include "mc_private.h"
-#include "mc_unw.h"
-#include "mc_smx.h"
-#include "mcer_ignore.h"
+#include "src/mc/mc_comm_pattern.h"
+#include "src/mc/mc_request.h"
+#include "src/mc/mc_safety.h"
+#include "src/mc/mc_snapshot.h"
+#include "src/mc/mc_liveness.h"
+#include "src/mc/mc_private.h"
+#include "src/mc/mc_unw.h"
+#include "src/mc/mc_smx.h"
#endif
-#include "mc_record.h"
-#include "mc_protocol.h"
-#include "mc_client.h"
+
+#include "src/mc/mc_record.h"
+#include "src/mc/mc_protocol.h"
+#include "src/mc/mc_client.h"
extern "C" {
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_global, mc,
"Logging specific to MC (global)");
+}
+
e_mc_mode_t mc_mode;
-double *mc_time = NULL;
+namespace simgrid {
+namespace mc {
+
+std::vector<double> processes_time;
-#ifdef HAVE_MC
+}
+}
+
+#if HAVE_MC
int user_max_depth_reached = 0;
/* MC global data structures */
-mc_state_t mc_current_state = NULL;
-char mc_replay_mode = FALSE;
+mc_state_t mc_current_state = nullptr;
+char mc_replay_mode = false;
-__thread mc_comparison_times_t mc_comp_times = NULL;
-__thread double mc_snapshot_comparison_time;
-mc_stats_t mc_stats = NULL;
-mc_global_t initial_global_state = NULL;
-xbt_fifo_t mc_stack = NULL;
+mc_stats_t mc_stats = nullptr;
+mc_global_t initial_global_state = nullptr;
+xbt_fifo_t mc_stack = nullptr;
/* Liveness */
-xbt_automaton_t _mc_property_automaton = NULL;
+
+namespace simgrid {
+namespace mc {
+
+xbt_automaton_t property_automaton = nullptr;
+
+}
+}
/* Dot output */
-FILE *dot_output = NULL;
+FILE *dot_output = nullptr;
const char *colors[13];
/******************************* Initialisation of MC *******************************/
/*********************************************************************************/
-static void MC_init_dot_output()
+void MC_init_dot_output()
{ /* FIXME : more colors */
colors[0] = "blue";
dot_output = fopen(_sg_mc_dot_output_file, "w");
- if (dot_output == NULL) {
+ if (dot_output == nullptr) {
perror("Error open dot output file");
xbt_abort();
}
}
-#ifdef HAVE_MC
+#if HAVE_MC
void MC_init()
{
- mc_time = xbt_new0(double, simix_process_maxpid);
+ simgrid::mc::processes_time.resize(simix_process_maxpid);
if (_sg_mc_visited > 0 || _sg_mc_liveness || _sg_mc_termination || mc_mode == MC_MODE_SERVER) {
/* Those requests are handled on the client side and propagated by message
* to the server: */
- MC_ignore_heap(mc_time, simix_process_maxpid * sizeof(double));
+ MC_ignore_heap(simgrid::mc::processes_time.data(),
+ simix_process_maxpid * sizeof(double));
smx_process_t process;
- xbt_swag_foreach(process, simix_global->process_list) {
+ xbt_swag_foreach(process, simix_global->process_list)
MC_ignore_heap(&(process->process_hookup), sizeof(process->process_hookup));
- }
}
}
-void MC_init_model_checker(pid_t pid, int socket)
-{
- mc_model_checker = new simgrid::mc::ModelChecker(pid, socket);
-
- mc_comp_times = xbt_new0(s_mc_comparison_times_t, 1);
-
- /* Initialize statistics */
- mc_stats = xbt_new0(s_mc_stats_t, 1);
- mc_stats->state_size = 1;
-
- if ((_sg_mc_dot_output_file != NULL) && (_sg_mc_dot_output_file[0] != '\0'))
- MC_init_dot_output();
-
- /* Init parmap */
- //parmap = xbt_parmap_mc_new(xbt_os_get_numcores(), XBT_PARMAP_DEFAULT);
-
- /* 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_cont"
- "ext", "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", "*");
-
- /* Static variable used for tracing */
- MCer_ignore_global_variable("counter");
-
- /* SIMIX */
- MCer_ignore_global_variable("smx_total_comms");
-}
#endif
/******************************* Core of MC *******************************/
void MC_exit(void)
{
- xbt_free(mc_time);
-
+ simgrid::mc::processes_time.clear();
MC_memory_exit();
//xbt_abort();
}
-#ifdef HAVE_MC
+#if HAVE_MC
int MC_deadlock_check()
{
if (mc_mode == MC_MODE_SERVER) {
ssize_t s = mc_model_checker->process().receive_message(message);
if (s == -1)
xbt_die("Could not receive message");
- else if (s != sizeof(message) || message.type != MC_MESSAGE_DEADLOCK_CHECK_REPLY) {
+ if (s != sizeof(message) || message.type != MC_MESSAGE_DEADLOCK_CHECK_REPLY)
xbt_die("%s received unexpected message %s (%i, size=%i) "
"expected MC_MESSAGE_DEADLOCK_CHECK_REPLY (%i, size=%i)",
MC_mode_name(mc_mode),
MC_message_type_name(message.type), (int) message.type, (int) s,
(int) MC_MESSAGE_DEADLOCK_CHECK_REPLY, (int) sizeof(message)
);
- }
- else
- return message.value;
+ return message.value;
}
- int deadlock = FALSE;
+ bool 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_process_is_enabled(process)) {
- deadlock = FALSE;
+ deadlock = true;
+ xbt_swag_foreach(process, simix_global->process_list)
+ if (simgrid::mc::process_is_enabled(process)) {
+ deadlock = false;
break;
}
- }
}
return deadlock;
}
{
int value, count = 1;
char *req_str;
- smx_simcall_t req = NULL, saved_req = NULL;
+ smx_simcall_t req = nullptr, saved_req = NULL;
xbt_fifo_item_t item, start_item;
mc_state_t state;
start_item = xbt_fifo_get_first_item(stack);
state = (mc_state_t)xbt_fifo_get_item_content(start_item);
if(state->system_state){
- MC_restore_snapshot(state->system_state);
+ simgrid::mc::restore_snapshot(state->system_state);
if(_sg_mc_comms_determinism || _sg_mc_send_determinism)
MC_restore_communications_pattern(state);
return;
/* Restore the initial state */
- MC_restore_snapshot(initial_global_state->snapshot);
+ simgrid::mc::restore_snapshot(initial_global_state->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 */
/* Debug information */
if (XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)) {
- req_str = MC_request_to_string(req, value, MC_REQUEST_SIMIX);
+ req_str = simgrid::mc::request_to_string(req, value, simgrid::mc::RequestType::simix);
XBT_DEBUG("Replay: %s (%p)", req_str, state);
xbt_free(req_str);
}
if (_sg_mc_comms_determinism || _sg_mc_send_determinism)
call = MC_get_call_type(req);
- MC_simcall_handle(req, value);
+ simgrid::mc::handle_simcall(req, value);
if (_sg_mc_comms_determinism || _sg_mc_send_determinism)
- MC_handle_comm_pattern(call, req, value, NULL, 1);
+ MC_handle_comm_pattern(call, req, value, nullptr, 1);
- MC_wait_for_requests();
+ mc_model_checker->wait_for_requests();
count++;
}
void MC_replay_liveness(xbt_fifo_t stack)
{
xbt_fifo_item_t item;
- mc_pair_t pair = NULL;
- mc_state_t state = NULL;
- smx_simcall_t req = NULL, saved_req = NULL;
+ simgrid::mc::Pair* pair = nullptr;
+ mc_state_t state = nullptr;
+ smx_simcall_t req = nullptr, saved_req = NULL;
int value, depth = 1;
char *req_str;
/* Intermediate backtracking */
if(_sg_mc_checkpoint > 0) {
item = xbt_fifo_get_first_item(stack);
- pair = (mc_pair_t) xbt_fifo_get_item_content(item);
+ pair = (simgrid::mc::Pair*) xbt_fifo_get_item_content(item);
if(pair->graph_state->system_state){
- MC_restore_snapshot(pair->graph_state->system_state);
+ simgrid::mc::restore_snapshot(pair->graph_state->system_state);
return;
}
}
/* Restore the initial state */
- MC_restore_snapshot(initial_global_state->snapshot);
+ simgrid::mc::restore_snapshot(initial_global_state->snapshot);
/* Traverse the stack from the initial state and re-execute the transitions */
for (item = xbt_fifo_get_last_item(stack);
item != xbt_fifo_get_first_item(stack);
item = xbt_fifo_get_prev_item(item)) {
- pair = (mc_pair_t) xbt_fifo_get_item_content(item);
+ pair = (simgrid::mc::Pair*) xbt_fifo_get_item_content(item);
state = (mc_state_t) pair->graph_state;
saved_req = MC_state_get_executed_request(state, &value);
- if (saved_req != NULL) {
+ if (saved_req != nullptr) {
/* 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 */
const smx_process_t issuer = MC_smx_simcall_get_issuer(saved_req);
/* Debug information */
if (XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)) {
- req_str = MC_request_to_string(req, value, MC_REQUEST_SIMIX);
+ req_str = simgrid::mc::request_to_string(req, value, simgrid::mc::RequestType::simix);
XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
xbt_free(req_str);
}
}
- MC_simcall_handle(req, value);
- MC_wait_for_requests();
+ simgrid::mc::handle_simcall(req, value);
+ mc_model_checker->wait_for_requests();
}
/* Update statistics */
mc_state_t state;
- while ((state = (mc_state_t) xbt_fifo_pop(stack)) != NULL)
+ while ((state = (mc_state_t) xbt_fifo_pop(stack)) != nullptr)
MC_state_delete(state, !state->in_visited_states ? 1 : 0);
}
mc_state_t state;
xbt_fifo_item_t item;
smx_simcall_t req;
- char *req_str = NULL;
+ char *req_str = nullptr;
for (item = xbt_fifo_get_last_item(stack);
item; item = xbt_fifo_get_prev_item(item)) {
state = (mc_state_t)xbt_fifo_get_item_content(item);
req = MC_state_get_executed_request(state, &value);
if (req) {
- req_str = MC_request_to_string(req, value, MC_REQUEST_EXECUTED);
+ req_str = simgrid::mc::request_to_string(req, value, simgrid::mc::RequestType::executed);
XBT_INFO("%s", req_str);
xbt_free(req_str);
}
void MC_show_deadlock(smx_simcall_t req)
{
- /*char *req_str = NULL; */
+ /*char *req_str = nullptr; */
XBT_INFO("**************************");
XBT_INFO("*** DEAD-LOCK DETECTED ***");
XBT_INFO("**************************");
XBT_INFO("Locked request:");
- /*req_str = MC_request_to_string(req);
+ /*req_str = simgrid::mc::request_to_string(req);
XBT_INFO("%s", req_str);
xbt_free(req_str); */
XBT_INFO("Counter-example execution trace:");
MC_print_statistics(mc_stats);
}
+namespace simgrid {
+namespace mc {
-void MC_show_stack_liveness(xbt_fifo_t stack)
+void show_stack_liveness(xbt_fifo_t stack)
{
int value;
- mc_pair_t pair;
+ simgrid::mc::Pair* pair;
xbt_fifo_item_t item;
smx_simcall_t req;
- char *req_str = NULL;
+ char *req_str = nullptr;
for (item = xbt_fifo_get_last_item(stack);
item; item = xbt_fifo_get_prev_item(item)) {
- pair = (mc_pair_t) xbt_fifo_get_item_content(item);
+ pair = (simgrid::mc::Pair*) xbt_fifo_get_item_content(item);
req = MC_state_get_executed_request(pair->graph_state, &value);
if (req && req->call != SIMCALL_NONE) {
- req_str = MC_request_to_string(req, value, MC_REQUEST_EXECUTED);
+ req_str = simgrid::mc::request_to_string(req, value, simgrid::mc::RequestType::executed);
XBT_INFO("%s", req_str);
xbt_free(req_str);
}
}
}
-
-void MC_dump_stack_liveness(xbt_fifo_t stack)
+void dump_stack_liveness(xbt_fifo_t stack)
{
- mc_pair_t pair;
- while ((pair = (mc_pair_t) xbt_fifo_pop(stack)) != NULL)
- MC_pair_delete(pair);
+ simgrid::mc::Pair* pair;
+ while ((pair = (simgrid::mc::Pair*) xbt_fifo_pop(stack)) != nullptr)
+ delete pair;
+}
+
+}
}
void MC_print_statistics(mc_stats_t stats)
XBT_INFO("Visited pairs = %lu", stats->visited_pairs);
}
XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
- if ((_sg_mc_dot_output_file != NULL) && (_sg_mc_dot_output_file[0] != '\0')) {
+ if ((_sg_mc_dot_output_file != nullptr) && (_sg_mc_dot_output_file[0] != '\0')) {
fprintf(dot_output, "}\n");
fclose(dot_output);
}
- if (initial_global_state != NULL && (_sg_mc_comms_determinism || _sg_mc_send_determinism)) {
+ if (initial_global_state != nullptr && (_sg_mc_comms_determinism || _sg_mc_send_determinism)) {
XBT_INFO("Send-deterministic : %s", !initial_global_state->send_deterministic ? "No" : "Yes");
if (_sg_mc_comms_determinism)
XBT_INFO("Recv-deterministic : %s", !initial_global_state->recv_deterministic ? "No" : "Yes");
}
+ if (getenv("SIMGRID_MC_SYSTEM_STATISTICS")){
+ int ret=system("free");
+ if(ret!=0)XBT_WARN("system call did not return 0, but %d",ret);
+ }
}
void MC_automaton_load(const char *file)
{
- if (_mc_property_automaton == NULL)
- _mc_property_automaton = xbt_automaton_new();
-
- xbt_automaton_load(_mc_property_automaton, file);
-}
-
-void MC_automaton_new_propositional_symbol(const char *id, int(*fct)(void))
-{
- xbt_die("Support for client-side function proposition is not implemented: "
- "use MC_automaton_new_propositional_symbol_pointer instead."
- );
-}
+ if (simgrid::mc::property_automaton == nullptr)
+ simgrid::mc::property_automaton = xbt_automaton_new();
-void MC_automaton_new_propositional_symbol_pointer(const char *name, int* value)
-{
- xbt_assert(mc_mode != MC_MODE_SERVER);
- if (mc_mode != MC_MODE_CLIENT)
- return;
- s_mc_register_symbol_message_t message;
- message.type = MC_MESSAGE_REGISTER_SYMBOL;
- if (strlen(name) + 1 > sizeof(message.name))
- xbt_die("Symbol is too long");
- strncpy(message.name, name, sizeof(message.name));
- message.callback = nullptr;
- message.data = value;
- MC_client_send_message(&message, sizeof(message));
+ xbt_automaton_load(simgrid::mc::property_automaton, file);
}
// TODO, fix cross-process access (this function is not used)
-void MC_dump_stacks(FILE* file)
+static void MC_dump_stacks(FILE* file)
{
int nstack = 0;
- stack_region_t current_stack;
- unsigned cursor;
- xbt_dynar_foreach(stacks_areas, cursor, current_stack) {
- unw_context_t * context = (unw_context_t *)current_stack->context;
+ for (auto const& stack : mc_model_checker->process().stack_areas()) {
+
+ xbt_die("Fix cross-process access to the context");
+ unw_context_t * context = (unw_context_t *)stack.context;
fprintf(file, "Stack %i:\n", nstack);
int nframe = 0;
unw_get_reg(&c, UNW_X86_64_RIP, &rip);
unw_get_reg(&c, UNW_X86_64_RSP, &rsp);
fprintf(file, " %i: %s (RIP=0x%" PRIx64 " RSP=0x%" PRIx64 ")\n",
- nframe, name, rip, rsp);
+ nframe, name, (std::uint64_t) rip, (std::uint64_t) rsp);
#else
fprintf(file, " %i: %s\n", nframe, name);
#endif
double MC_process_clock_get(smx_process_t process)
{
- if (mc_time) {
- if (process != NULL)
- return mc_time[process->pid];
- else
- return -1;
- } else {
+ if (simgrid::mc::processes_time.empty())
return 0;
- }
+ if (process != nullptr)
+ return simgrid::mc::processes_time[process->pid];
+ return -1;
}
void MC_process_clock_add(smx_process_t process, double amount)
{
- mc_time[process->pid] += amount;
+ simgrid::mc::processes_time[process->pid] += amount;
}
-#ifdef HAVE_MC
+#if HAVE_MC
void MC_report_assertion_error(void)
{
XBT_INFO("**************************");
MC_print_statistics(mc_stats);
}
-void MC_invalidate_cache(void)
+void MC_report_crash(int status)
{
- if (mc_model_checker)
- mc_model_checker->process().cache_flags = 0;
+ XBT_INFO("**************************");
+ XBT_INFO("** CRASH IN THE PROGRAM **");
+ XBT_INFO("**************************");
+ if (WIFSIGNALED(status))
+ XBT_INFO("From signal: %s", strsignal(WTERMSIG(status)));
+ else if (WIFEXITED(status))
+ XBT_INFO("From exit: %i", WEXITSTATUS(status));
+ if (WCOREDUMP(status))
+ XBT_INFO("A core dump was generated by the system.");
+ else
+ XBT_INFO("No core dump was generated by the system.");
+ XBT_INFO("Counter-example execution trace:");
+ MC_record_dump_path(mc_stack);
+ MC_dump_stack_safety(mc_stack);
+ MC_print_statistics(mc_stats);
}
-#endif
-}
+#endif
