/* 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 "mc_base.h"
+
+#ifndef _XBT_WIN32
#include <unistd.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/mman.h>
#include <libgen.h>
+#define UNW_LOCAL_ONLY
+#include <libunwind.h>
+#endif
+
#include "simgrid/sg_config.h"
#include "../surf/surf_private.h"
#include "../simix/smx_private.h"
-#include "../xbt/mmalloc/mmprivate.h"
#include "xbt/fifo.h"
-#include "mc_private.h"
#include "xbt/automaton.h"
#include "xbt/dict.h"
-XBT_LOG_NEW_CATEGORY(mc, "All MC categories");
+#ifdef HAVE_MC
+#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"
+#endif
+#include "mc_record.h"
+
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_global, mc,
"Logging specific to MC (global)");
+double *mc_time = NULL;
+
+#ifdef HAVE_MC
int user_max_depth_reached = 0;
/* MC global data structures */
mc_state_t mc_current_state = NULL;
char mc_replay_mode = FALSE;
-double *mc_time = NULL;
+
__thread mc_comparison_times_t mc_comp_times = NULL;
__thread double mc_snapshot_comparison_time;
mc_stats_t mc_stats = NULL;
mc_model_checker_t mc_model_checker = NULL;
+mc_model_checker_t MC_model_checker_new()
+{
+ 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);
+}
+
void MC_init()
{
int raw_mem_set = (mmalloc_get_current_heap() == mc_heap);
MC_SET_MC_HEAP;
- mc_model_checker = xbt_new0(s_mc_model_checker_t, 1);
- mc_model_checker->pages = mc_pages_store_new();
- mc_model_checker->fd_clear_refs = -1;
- mc_model_checker->fd_pagemap = -1;
+ mc_model_checker = MC_model_checker_new();
mc_comp_times = xbt_new0(s_mc_comparison_times_t, 1);
/* Ignore local variable about time used for tracing */
MC_ignore_local_variable("start_time", "*");
+ /* Main MC state: */
MC_ignore_global_variable("mc_model_checker");
+ MC_ignore_global_variable("communications_pattern");
+ MC_ignore_global_variable("initial_communications_pattern");
+ MC_ignore_global_variable("incomplete_communications_pattern");
- // Mot of those things could be moved into mc_model_checker:
- MC_ignore_global_variable("compared_pointers");
+ /* MC __thread variables: */
+ MC_ignore_global_variable("mc_diff_info");
MC_ignore_global_variable("mc_comp_times");
MC_ignore_global_variable("mc_snapshot_comparison_time");
+
+ /* This MC state is used in MC replay as well: */
MC_ignore_global_variable("mc_time");
- MC_ignore_global_variable("smpi_current_rank");
- MC_ignore_global_variable("counter"); /* Static variable used for tracing */
- MC_ignore_global_variable("maestro_stack_start");
- MC_ignore_global_variable("maestro_stack_end");
- MC_ignore_global_variable("smx_total_comms");
- MC_ignore_global_variable("communications_pattern");
- MC_ignore_global_variable("initial_communications_pattern");
- MC_ignore_global_variable("incomplete_communications_pattern");
- if (MC_is_active()) {
- MC_ignore_global_variable("mc_diff_info");
- }
+ /* Static variable used for tracing */
+ MC_ignore_global_variable("counter");
+
+ /* SIMIX */
+ MC_ignore_global_variable("smx_total_comms");
MC_ignore_heap(mc_time, simix_process_maxpid * sizeof(double));
//xbt_abort();
}
-int simcall_HANDLER_mc_random(smx_simcall_t simcall, int min, int max)
-{
-
- return simcall->mc_value;
-}
-
-
-int MC_random(int min, int max)
-{
- /*FIXME: return mc_current_state->executed_transition->random.value; */
- return simcall_mc_random(min, max);
-}
-
-/**
- * \brief Schedules all the process that are ready to run
- */
-void MC_wait_for_requests(void)
-{
- smx_process_t process;
- smx_simcall_t req;
- unsigned int iter;
-
- while (!xbt_dynar_is_empty(simix_global->process_to_run)) {
- SIMIX_process_runall();
- xbt_dynar_foreach(simix_global->process_that_ran, iter, process) {
- req = &process->simcall;
- if (req->call != SIMCALL_NONE && !MC_request_is_visible(req))
- SIMIX_simcall_handle(req, 0);
- }
- }
-}
-
int MC_deadlock_check()
{
int deadlock = FALSE;
* a given model-checker stack.
* \param stack The stack with the transitions to execute.
* \param start Start index to begin the re-execution.
+ *
+ * If start==-1, restore the initial state and replay the actions the
+ * the transitions in the stack.
+ *
+ * Otherwise, we only replay a part of the transitions of the stacks
+ * without restoring the state: it is assumed that the current state
+ * match with the transitions to execute.
*/
void MC_replay(xbt_fifo_t stack, int start)
{
MC_SET_STD_HEAP;
-
/* 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);
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();
user_max_depth_reached = 1;
}
-void MC_process_clock_add(smx_process_t process, double amount)
-{
- mc_time[process->pid] += amount;
-}
-
-double MC_process_clock_get(smx_process_t process)
-{
- if (mc_time) {
- if (process != NULL)
- return mc_time[process->pid];
- else
- return -1;
- } else {
- return 0;
- }
-}
-
void MC_automaton_load(const char *file)
{
MC_SET_MC_HEAP;
}
+
+void MC_dump_stacks(FILE* file)
+{
+ int raw_mem_set = (mmalloc_get_current_heap() == mc_heap);
+ MC_SET_MC_HEAP;
+
+ 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;
+ 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 : "?";
+ fprintf(file, " %i: %s\n", nframe, name);
+ ++nframe;
+ } while(unw_step(&c));
+
+ ++nstack;
+ }
+
+ if (raw_mem_set)
+ MC_SET_MC_HEAP;
+}
+#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 {
+ return 0;
+ }
+}
+
+void MC_process_clock_add(smx_process_t process, double amount)
+{
+ mc_time[process->pid] += amount;
+}
