X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/5787a5c839c1f49fec942290449d18b72b036d98..5ec2b80b686983f84ebab7c7398a29e73286deee:/src/mc/mc_global.cpp diff --git a/src/mc/mc_global.cpp b/src/mc/mc_global.cpp index 090fe456b9..ae7c449bf6 100644 --- a/src/mc/mc_global.cpp +++ b/src/mc/mc_global.cpp @@ -1,413 +1,85 @@ -/* Copyright (c) 2008-2015. The SimGrid Team. - * All rights reserved. */ +/* Copyright (c) 2008-2023. 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 -#include -#include -#include - -#include - -#include "mc_base.h" - #include "mc/mc.h" - -#ifndef _WIN32 -#include -#include -#include -#endif - -#include "src/simix/smx_process_private.h" - -#if HAVE_MC +#include "src/kernel/actor/ActorImpl.hpp" + +#if SIMGRID_HAVE_MC +#include "src/mc/api/RemoteApp.hpp" +#include "src/mc/explo/Exploration.hpp" +#include "src/mc/inspect/mc_unw.hpp" +#include "src/mc/mc_config.hpp" +#include "src/mc/mc_private.hpp" +#include "src/mc/remote/AppSide.hpp" +#include "src/mc/sosp/Snapshot.hpp" + +#include +#include +#include +#include #include -#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 "src/mc/mc_record.h" -#include "src/mc/mc_protocol.h" -#include "src/mc/Client.hpp" +#include +#include +#include XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_global, mc, "Logging specific to MC (global)"); -e_mc_mode_t mc_mode; - -namespace simgrid { -namespace mc { +namespace simgrid::mc { std::vector processes_time; } -} - -#if HAVE_MC -int user_max_depth_reached = 0; - -/* MC global data structures */ -mc_state_t mc_current_state = nullptr; -char mc_replay_mode = false; - -mc_stats_t mc_stats = nullptr; -mc_global_t initial_global_state = nullptr; -xbt_fifo_t mc_stack = nullptr; - -/* Liveness */ - -namespace simgrid { -namespace mc { - -xbt_automaton_t property_automaton = nullptr; - -} -} - -/* Dot output */ -FILE *dot_output = nullptr; +#if SIMGRID_HAVE_MC -/******************************* Initialisation of MC *******************************/ -/*********************************************************************************/ - -void MC_init_dot_output() -{ - dot_output = fopen(_sg_mc_dot_output_file, "w"); - - if (dot_output == nullptr) { - perror("Error open dot output file"); - xbt_abort(); - } - - fprintf(dot_output, - "digraph graphname{\n fixedsize=true; rankdir=TB; ranksep=.25; edge [fontsize=12]; node [fontsize=10, shape=circle,width=.5 ]; graph [resolution=20, fontsize=10];\n"); - -} - -#if HAVE_MC -void MC_init() -{ - 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(simgrid::mc::processes_time.data(), - simix_process_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)); - } -} - -#endif +namespace simgrid::mc { /******************************* Core of MC *******************************/ /**************************************************************************/ - -void MC_run() -{ - mc_mode = MC_MODE_CLIENT; - MC_init(); - simgrid::mc::Client::get()->mainLoop(); -} - -void MC_exit(void) -{ - simgrid::mc::processes_time.clear(); - MC_memory_exit(); - //xbt_abort(); -} - -/** - * \brief Re-executes from the state at position start all the transitions indicated by - * a given model-checker stack. - * \param stack The stack with the transitions to execute. - * \param start Start index to begin the re-execution. - */ -void MC_replay(xbt_fifo_t stack) -{ - int value, count = 1; - char *req_str; - smx_simcall_t req = nullptr, saved_req = NULL; - xbt_fifo_item_t item, start_item; - mc_state_t state; - - XBT_DEBUG("**** Begin Replay ****"); - - /* Intermediate backtracking */ - if(_sg_mc_checkpoint > 0 || _sg_mc_termination || _sg_mc_visited > 0) { - start_item = xbt_fifo_get_first_item(stack); - state = (mc_state_t)xbt_fifo_get_item_content(start_item); - if(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 */ - 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 */ - - start_item = xbt_fifo_get_last_item(stack); - - if (_sg_mc_comms_determinism || _sg_mc_send_determinism) { - // int n = xbt_dynar_length(incomplete_communications_pattern); - unsigned n = MC_smx_get_maxpid(); - assert(n == xbt_dynar_length(incomplete_communications_pattern)); - assert(n == xbt_dynar_length(initial_communications_pattern)); - for (unsigned j=0; j < n ; j++) { - xbt_dynar_reset((xbt_dynar_t)xbt_dynar_get_as(incomplete_communications_pattern, j, xbt_dynar_t)); - xbt_dynar_get_as(initial_communications_pattern, j, mc_list_comm_pattern_t)->index_comm = 0; - } - } - - /* Traverse the stack from the state at position start and re-execute the transitions */ - for (item = start_item; - item != xbt_fifo_get_first_item(stack); - item = xbt_fifo_get_prev_item(item)) { - - state = (mc_state_t) xbt_fifo_get_item_content(item); - saved_req = MC_state_get_executed_request(state, &value); - - 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 */ - - 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)) { - 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); - } - - /* TODO : handle test and testany simcalls */ - e_mc_call_type_t call = MC_CALL_TYPE_NONE; - if (_sg_mc_comms_determinism || _sg_mc_send_determinism) - call = MC_get_call_type(req); - - simgrid::mc::handle_simcall(req, value); - - if (_sg_mc_comms_determinism || _sg_mc_send_determinism) - MC_handle_comm_pattern(call, req, value, nullptr, 1); - - mc_model_checker->wait_for_requests(); - - count++; - } - - /* Update statistics */ - mc_stats->visited_states++; - mc_stats->executed_transitions++; - - } - - XBT_DEBUG("**** End Replay ****"); -} - -/** - * \brief Dumps the contents of a model-checker's stack and shows the actual - * execution trace - * \param stack The stack to dump - */ -void MC_dump_stack_safety(xbt_fifo_t stack) -{ - MC_show_stack_safety(stack); - - mc_state_t state; - - while ((state = (mc_state_t) xbt_fifo_pop(stack)) != nullptr) - MC_state_delete(state, !state->in_visited_states ? 1 : 0); -} - - -void MC_show_stack_safety(xbt_fifo_t stack) +void dumpStack(FILE* file, unw_cursor_t* cursor) { - int value; - mc_state_t state; - xbt_fifo_item_t item; - smx_simcall_t req; - char *req_str = nullptr; + int nframe = 0; + std::array buffer; - 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 = 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 = nullptr; */ - XBT_INFO("**************************"); - XBT_INFO("*** DEAD-LOCK DETECTED ***"); - XBT_INFO("**************************"); - XBT_INFO("Locked request:"); - /*req_str = simgrid::mc::request_to_string(req); - XBT_INFO("%s", req_str); - xbt_free(req_str); */ - XBT_INFO("Counter-example execution trace:"); - MC_dump_stack_safety(mc_stack); - MC_print_statistics(mc_stats); -} - -void MC_show_non_termination(void){ - XBT_INFO("******************************************"); - XBT_INFO("*** NON-PROGRESSIVE CYCLE DETECTED ***"); - XBT_INFO("******************************************"); - XBT_INFO("Counter-example execution trace:"); - MC_dump_stack_safety(mc_stack); - MC_print_statistics(mc_stats); -} + unw_word_t off; + do { + const char* name = not unw_get_proc_name(cursor, buffer.data(), buffer.size(), &off) ? buffer.data() : "?"; + // Unmangle C++ names: + std::string realname = boost::core::demangle(name); -void MC_print_statistics(mc_stats_t stats) -{ - if(_sg_mc_comms_determinism) { - if (!initial_global_state->recv_deterministic && initial_global_state->send_deterministic){ - XBT_INFO("******************************************************"); - XBT_INFO("**** Only-send-deterministic communication pattern ****"); - XBT_INFO("******************************************************"); - XBT_INFO("%s", initial_global_state->recv_diff); - }else if(!initial_global_state->send_deterministic && initial_global_state->recv_deterministic) { - XBT_INFO("******************************************************"); - XBT_INFO("**** Only-recv-deterministic communication pattern ****"); - 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); - } else { - XBT_INFO("Expanded pairs = %lu", stats->expanded_pairs); - XBT_INFO("Visited pairs = %lu", stats->visited_pairs); - } - XBT_INFO("Executed transitions = %lu", stats->executed_transitions); - 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 != 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 (simgrid::mc::property_automaton == nullptr) - simgrid::mc::property_automaton = xbt_automaton_new(); - - xbt_automaton_load(simgrid::mc::property_automaton, file); -} - -// TODO, fix cross-process access (this function is not used) -static void MC_dump_stacks(FILE* file) -{ - int nstack = 0; - 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; - char buffer[100]; - unw_cursor_t c; - unw_init_local (&c, context); - unw_word_t off; - do { - const char * name = !unw_get_proc_name(&c, buffer, 100, &off) ? buffer : "?"; #if defined(__x86_64__) - unw_word_t rip = 0; - unw_word_t rsp = 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, (std::uint64_t) rip, (std::uint64_t) rsp); + unw_word_t rip = 0; + unw_word_t rsp = 0; + unw_get_reg(cursor, UNW_X86_64_RIP, &rip); + unw_get_reg(cursor, UNW_X86_64_RSP, &rsp); + fprintf(file, " %i: %s (RIP=0x%" PRIx64 " RSP=0x%" PRIx64 ")\n", nframe, realname.c_str(), (std::uint64_t)rip, + (std::uint64_t)rsp); #else - fprintf(file, " %i: %s\n", nframe, name); + fprintf(file, " %i: %s\n", nframe, realname.c_str()); #endif - ++nframe; - } while(unw_step(&c)); - ++nstack; - } -} -#endif - -double MC_process_clock_get(smx_process_t process) -{ - if (simgrid::mc::processes_time.empty()) - return 0; - if (process != nullptr) - return simgrid::mc::processes_time[process->pid]; - return -1; + ++nframe; + } while (unw_step(cursor)); } -void MC_process_clock_add(smx_process_t process, double amount) -{ - simgrid::mc::processes_time[process->pid] += amount; -} +} // namespace simgrid::mc +#endif -#if HAVE_MC -void MC_report_assertion_error(void) +double MC_process_clock_get(const simgrid::kernel::actor::ActorImpl* process) { - 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); + if (process) { + auto pid = static_cast(process->get_pid()); + if (pid < simgrid::mc::processes_time.size()) + return simgrid::mc::processes_time[pid]; + } + return 0.0; } -void MC_report_crash(int status) +void MC_process_clock_add(const simgrid::kernel::actor::ActorImpl* process, double amount) { - 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); + simgrid::mc::processes_time.at(process->get_pid()) += amount; } - -#endif