#include "src/mc/mc_private.h"
#include "src/mc/mc_ignore.h"
#include "src/mc/mc_exit.h"
-#include "src/mc/mc_liveness.h"
+#include "src/mc/mc_record.h"
+#include "src/mc/Transition.hpp"
+#include "src/mc/Checker.hpp"
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_ModelChecker, mc, "ModelChecker");
sigemptyset(&set);
sigaddset(&set, SIGCHLD);
if (sigprocmask(SIG_BLOCK, &set, nullptr) == -1)
- throw simgrid::xbt::errno_error(errno);
+ throw simgrid::xbt::errno_error();
sigset_t full_set;
sigfillset(&full_set);
// Prepare data for poll:
struct pollfd* socket_pollfd = &fds_[SOCKET_FD_INDEX];
- socket_pollfd->fd = process_->socket();;
+ socket_pollfd->fd = process_->getChannel().getSocket();
socket_pollfd->events = POLLIN;
socket_pollfd->revents = 0;
int signal_fd = signalfd(-1, &set, 0);
if (signal_fd == -1)
- throw simgrid::xbt::errno_error(errno);
+ throw simgrid::xbt::errno_error();
struct pollfd* signalfd_pollfd = &fds_[SIGNAL_FD_INDEX];
signalfd_pollfd->fd = signal_fd;
process_->init();
- /* Initialize statistics */
- mc_stats = xbt_new0(s_mc_stats_t, 1);
- mc_stats->state_size = 1;
-
if ((_sg_mc_dot_output_file != nullptr) && (_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);
-
setup_ignore();
ptrace(PTRACE_SETOPTIONS, pid, nullptr, PTRACE_O_TRACEEXIT);
/* Static variable used for tracing */
process.ignore_global_variable("counter");
-
- /* SIMIX */
- process.ignore_global_variable("smx_total_comms");
}
void ModelChecker::shutdown()
void ModelChecker::resume(simgrid::mc::Process& process)
{
- int res = process.send_message(MC_MESSAGE_CONTINUE);
+ int res = process.getChannel().send(MC_MESSAGE_CONTINUE);
if (res)
- throw simgrid::xbt::errno_error(res);
- process.cache_flags = (mc_process_cache_flags_t) 0;
+ throw simgrid::xbt::errno_error();
+ process.clear_cache();
}
static
socklen_t errlen = sizeof(error);
if (getsockopt(fd, SOL_SOCKET, SO_ERROR, (void *)&error, &errlen) == -1)
error = errno;
- throw simgrid::xbt::errno_error(errno);
+ throw simgrid::xbt::errno_error();
+}
+
+static void MC_report_crash(int status)
+{
+ 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:");
+ simgrid::mc::dumpRecordPath();
+ for (auto& s : mc_model_checker->getChecker()->getTextualTrace())
+ XBT_INFO("%s", s.c_str());
+ simgrid::mc::session->logState();
+ XBT_INFO("Stack trace:");
+ mc_model_checker->process().dumpStack();
+}
+
+static void MC_report_assertion_error(void)
+{
+ XBT_INFO("**************************");
+ XBT_INFO("*** PROPERTY NOT VALID ***");
+ XBT_INFO("**************************");
+ XBT_INFO("Counter-example execution trace:");
+ simgrid::mc::dumpRecordPath();
+ for (auto& s : mc_model_checker->getChecker()->getTextualTrace())
+ XBT_INFO("%s", s.c_str());
+ simgrid::mc::session->logState();
}
bool ModelChecker::handle_message(char* buffer, ssize_t size)
case EINTR:
continue;
default:
- throw simgrid::xbt::errno_error(errno);
+ throw simgrid::xbt::errno_error();
}
}
if (socket_pollfd->revents) {
if (socket_pollfd->revents & POLLIN) {
- ssize_t size = MC_receive_message(socket_pollfd->fd, buffer, sizeof(buffer), MSG_DONTWAIT);
+ ssize_t size = process_->getChannel().receive(buffer, sizeof(buffer), false);
if (size == -1 && errno != EAGAIN)
- throw simgrid::xbt::errno_error(errno);
+ throw simgrid::xbt::errno_error();
return handle_message(buffer, size);
}
if (socket_pollfd->revents & POLLERR)
if (errno == EINTR)
continue;
else
- throw simgrid::xbt::errno_error(errno);
+ throw simgrid::xbt::errno_error();
} else if (size != sizeof(info))
return throw std::runtime_error(
"Bad communication with model-checked application");
break;
} else {
XBT_ERROR("Could not wait for pid");
- throw simgrid::xbt::errno_error(errno);
+ throw simgrid::xbt::errno_error();
}
}
return;
}
-void ModelChecker::simcall_handle(simgrid::mc::Process& process, unsigned long pid, int value)
+void ModelChecker::handle_simcall(Transition const& transition)
{
s_mc_simcall_handle_message m;
memset(&m, 0, sizeof(m));
m.type = MC_MESSAGE_SIMCALL_HANDLE;
- m.pid = pid;
- m.value = value;
- process.send_message(m);
- process.cache_flags = (mc_process_cache_flags_t) 0;
- while (process.running())
+ m.pid = transition.pid;
+ m.value = transition.argument;
+ this->process_->getChannel().send(m);
+ this->process_->clear_cache();
+ while (this->process_->running())
if (!this->handle_events())
return;
}
+bool ModelChecker::checkDeadlock()
+{
+ int res;
+ if ((res = this->process().getChannel().send(MC_MESSAGE_DEADLOCK_CHECK)))
+ xbt_die("Could not check deadlock state");
+ s_mc_int_message_t message;
+ ssize_t s = mc_model_checker->process().getChannel().receive(message);
+ if (s == -1)
+ xbt_die("Could not receive message");
+ 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)
+ );
+ return message.value != 0;
+}
+
}
}