1 /* Copyright (c) 2008-2017. The SimGrid Team. All rights reserved. */
3 /* This program is free software; you can redistribute it and/or modify it
4 * under the terms of the license (GNU LGPL) which comes with this package. */
15 #include "xbt/automaton.h"
16 #include "xbt/backtrace.hpp"
17 #include "xbt/dynar.h"
29 #include "src/simix/ActorImpl.hpp"
32 #include "src/mc/checker/Checker.hpp"
33 #include "src/mc/mc_comm_pattern.hpp"
34 #include "src/mc/mc_private.hpp"
35 #include "src/mc/mc_request.hpp"
36 #include "src/mc/mc_safety.hpp"
37 #include "src/mc/mc_smx.hpp"
38 #include "src/mc/mc_snapshot.hpp"
39 #include "src/mc/mc_unw.hpp"
40 #include <libunwind.h>
43 #include "src/mc/Transition.hpp"
44 #include "src/mc/mc_record.hpp"
45 #include "src/mc/remote/Client.hpp"
46 #include "src/mc/remote/mc_protocol.h"
48 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_global, mc, "Logging specific to MC (global)");
50 extern std::string _sg_mc_dot_output_file;
55 std::vector<double> processes_time;
67 xbt_automaton_t property_automaton = nullptr;
73 FILE *dot_output = nullptr;
76 /******************************* Initialization of MC *******************************/
77 /*********************************************************************************/
79 void MC_init_dot_output()
81 dot_output = fopen(_sg_mc_dot_output_file.c_str(), "w");
83 if (dot_output == nullptr) {
84 perror("Error open dot output file");
89 "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");
93 /******************************* Core of MC *******************************/
94 /**************************************************************************/
98 simgrid::mc::processes_time.resize(SIMIX_process_get_maxpid());
99 MC_ignore_heap(simgrid::mc::processes_time.data(),
100 simgrid::mc::processes_time.size() * sizeof(simgrid::mc::processes_time[0]));
101 simgrid::mc::Client::get()->mainLoop();
102 simgrid::mc::processes_time.clear();
105 void MC_show_deadlock()
107 XBT_INFO("**************************");
108 XBT_INFO("*** DEAD-LOCK DETECTED ***");
109 XBT_INFO("**************************");
110 XBT_INFO("Counter-example execution trace:");
111 for (auto const& s : mc_model_checker->getChecker()->getTextualTrace())
112 XBT_INFO("%s", s.c_str());
113 simgrid::mc::session->logState();
116 void MC_automaton_load(const char *file)
118 if (simgrid::mc::property_automaton == nullptr)
119 simgrid::mc::property_automaton = xbt_automaton_new();
121 xbt_automaton_load(simgrid::mc::property_automaton, file);
127 void dumpStack(FILE* file, unw_cursor_t cursor)
134 const char* name = not unw_get_proc_name(&cursor, buffer, 100, &off) ? buffer : "?";
135 // Unmangle C++ names:
136 auto realname = simgrid::xbt::demangle(name);
138 #if defined(__x86_64__)
141 unw_get_reg(&cursor, UNW_X86_64_RIP, &rip);
142 unw_get_reg(&cursor, UNW_X86_64_RSP, &rsp);
143 fprintf(file, " %i: %s (RIP=0x%" PRIx64 " RSP=0x%" PRIx64 ")\n", nframe, realname.get(), (std::uint64_t)rip,
146 fprintf(file, " %i: %s\n", nframe, realname.get());
150 } while(unw_step(&cursor));
156 static void MC_dump_stacks(FILE* file)
159 for (auto const& stack : mc_model_checker->process().stack_areas()) {
160 fprintf(file, "Stack %i:\n", nstack);
163 simgrid::mc::UnwindContext context;
164 unw_context_t raw_context =
165 (unw_context_t) mc_model_checker->process().read<unw_context_t>(
166 simgrid::mc::remote((unw_context_t *)stack.context));
167 context.initialize(&mc_model_checker->process(), &raw_context);
169 unw_cursor_t cursor = context.cursor();
170 simgrid::mc::dumpStack(file, cursor);
175 double MC_process_clock_get(smx_actor_t process)
177 if (simgrid::mc::processes_time.empty())
179 if (process != nullptr)
180 return simgrid::mc::processes_time[process->pid];
184 void MC_process_clock_add(smx_actor_t process, double amount)
186 simgrid::mc::processes_time[process->pid] += amount;