X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/b77d16c5d011f3c04ab6dcc2c4d5d2f865fd9415..cf9a823f1cfd8b0098a039bff8ff6567e9beac91:/src/mc/mc_global.c diff --git a/src/mc/mc_global.c b/src/mc/mc_global.c index 809f87797a..3b1367023b 100644 --- a/src/mc/mc_global.c +++ b/src/mc/mc_global.c @@ -4,146 +4,55 @@ /* 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 "mc_base.h" + +#ifndef _XBT_WIN32 #include -#include #include #include -#include -#include +#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"); -XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_global, mc, - "Logging specific to MC (global)"); - -/* Configuration support */ -e_mc_reduce_t mc_reduce_kind = e_mc_reduce_unset; - -int _sg_do_model_check = 0; -int _sg_mc_checkpoint = 0; -char *_sg_mc_property_file = NULL; -int _sg_mc_timeout = 0; -int _sg_mc_hash = 0; -int _sg_mc_max_depth = 1000; -int _sg_mc_visited = 0; -char *_sg_mc_dot_output_file = NULL; -int _sg_mc_comms_determinism = 0; -int _sg_mc_send_determinism = 0; -int _sg_mc_safety = 0; -int _sg_mc_liveness = 0; - -int user_max_depth_reached = 0; - -void _mc_cfg_cb_reduce(const char *name, int pos) -{ - if (_sg_cfg_init_status && !_sg_do_model_check) { - xbt_die - ("You are specifying a reduction strategy after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry."); - } - char *val = xbt_cfg_get_string(_sg_cfg_set, name); - if (!strcasecmp(val, "none")) { - mc_reduce_kind = e_mc_reduce_none; - } else if (!strcasecmp(val, "dpor")) { - mc_reduce_kind = e_mc_reduce_dpor; - } else { - xbt_die("configuration option %s can only take 'none' or 'dpor' as a value", - name); - } -} - -void _mc_cfg_cb_checkpoint(const char *name, int pos) -{ - if (_sg_cfg_init_status && !_sg_do_model_check) { - xbt_die - ("You are specifying a checkpointing value after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry."); - } - _sg_mc_checkpoint = xbt_cfg_get_int(_sg_cfg_set, name); -} - -void _mc_cfg_cb_property(const char *name, int pos) -{ - if (_sg_cfg_init_status && !_sg_do_model_check) { - xbt_die - ("You are specifying a property after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry."); - } - _sg_mc_property_file = xbt_cfg_get_string(_sg_cfg_set, name); -} - -void _mc_cfg_cb_timeout(const char *name, int pos) -{ - if (_sg_cfg_init_status && !_sg_do_model_check) { - xbt_die - ("You are specifying a value to enable/disable timeout for wait requests after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry."); - } - _sg_mc_timeout = xbt_cfg_get_boolean(_sg_cfg_set, name); -} - -void _mc_cfg_cb_hash(const char *name, int pos) -{ - if (_sg_cfg_init_status && !_sg_do_model_check) { - xbt_die - ("You are specifying a value to enable/disable the use of global hash to speedup state comparaison, but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry."); - } - _sg_mc_hash = xbt_cfg_get_boolean(_sg_cfg_set, name); -} +#ifdef HAVE_MC +#include -void _mc_cfg_cb_max_depth(const char *name, int pos) -{ - if (_sg_cfg_init_status && !_sg_do_model_check) { - xbt_die - ("You are specifying a max depth value after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry."); - } - _sg_mc_max_depth = xbt_cfg_get_int(_sg_cfg_set, name); -} +#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" +#endif +#include "mc_record.h" +#include "mc_protocol.h" +#include "mc_client.h" -void _mc_cfg_cb_visited(const char *name, int pos) -{ - if (_sg_cfg_init_status && !_sg_do_model_check) { - xbt_die - ("You are specifying a number of stored visited states after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry."); - } - _sg_mc_visited = xbt_cfg_get_int(_sg_cfg_set, name); -} +XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_global, mc, + "Logging specific to MC (global)"); -void _mc_cfg_cb_dot_output(const char *name, int pos) -{ - if (_sg_cfg_init_status && !_sg_do_model_check) { - xbt_die - ("You are specifying a file name for a dot output of graph state after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry."); - } - _sg_mc_dot_output_file = xbt_cfg_get_string(_sg_cfg_set, name); -} +e_mc_mode_t mc_mode; -void _mc_cfg_cb_comms_determinism(const char *name, int pos) -{ - if (_sg_cfg_init_status && !_sg_do_model_check) { - xbt_die - ("You are specifying a value to enable/disable the detection of determinism in the communications schemes after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry."); - } - _sg_mc_comms_determinism = xbt_cfg_get_boolean(_sg_cfg_set, name); -} +double *mc_time = NULL; -void _mc_cfg_cb_send_determinism(const char *name, int pos) -{ - if (_sg_cfg_init_status && !_sg_do_model_check) { - xbt_die - ("You are specifying a value to enable/disable the detection of send-determinism in the communications schemes after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry."); - } - _sg_mc_send_determinism = xbt_cfg_get_boolean(_sg_cfg_set, name); -} +#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; @@ -153,14 +62,6 @@ xbt_fifo_t mc_stack = NULL; /* Liveness */ xbt_automaton_t _mc_property_automaton = NULL; -/* Variables */ -mc_object_info_t mc_libsimgrid_info = NULL; -mc_object_info_t mc_binary_info = NULL; - -mc_object_info_t mc_object_infos[2] = { NULL, NULL }; - -size_t mc_object_infos_size = 2; - /* Dot output */ FILE *dot_output = NULL; const char *colors[13]; @@ -198,30 +99,40 @@ static void MC_init_dot_output() } -static void MC_init_debug_info(void) -{ - XBT_INFO("Get debug information ..."); - - memory_map_t maps = MC_get_memory_map(); - - /* Get local variables for state equality detection */ - mc_binary_info = MC_find_object_info(maps, xbt_binary_name, 1); - mc_object_infos[0] = mc_binary_info; +mc_model_checker_t mc_model_checker = NULL; - mc_libsimgrid_info = MC_find_object_info(maps, libsimgrid_path, 0); - mc_object_infos[1] = mc_libsimgrid_info; - - // Use information of the other objects: - MC_post_process_object_info(mc_binary_info); - MC_post_process_object_info(mc_libsimgrid_info); - - MC_free_memory_map(maps); - XBT_INFO("Get debug information done !"); +mc_model_checker_t MC_model_checker_new(pid_t pid, int socket) +{ + 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; + MC_process_init(&mc->process, pid, socket); + 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); + MC_process_clear(&mc->process); +} void MC_init() { + MC_init_pid(getpid(), -1); +} + +void MC_init_pid(pid_t pid, int socket) +{ + if (mc_mode == MC_MODE_NONE) { + if (getenv(MC_ENV_SOCKET_FD)) { + mc_mode = MC_MODE_CLIENT; + } else { + mc_mode = MC_MODE_STANDALONE; + } + } int raw_mem_set = (mmalloc_get_current_heap() == mc_heap); @@ -232,15 +143,14 @@ void MC_init() MC_SET_MC_HEAP; + mc_model_checker = MC_model_checker_new(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; - MC_init_memory_map_info(); - MC_init_debug_info(); /* FIXME : get debug information only if liveness verification or visited state reduction */ - if ((_sg_mc_dot_output_file != NULL) && (_sg_mc_dot_output_file[0] != '\0')) MC_init_dot_output(); @@ -249,8 +159,7 @@ void MC_init() MC_SET_STD_HEAP; - if (_sg_mc_visited > 0 - || (_sg_mc_property_file && _sg_mc_property_file[0] != '\0')) { + if (_sg_mc_visited > 0 || _sg_mc_liveness) { /* 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", "*"); @@ -262,34 +171,56 @@ void MC_init() MC_ignore_local_variable("ctx", "*"); MC_ignore_local_variable("self", "simcall_BODY_mc_snapshot"); - MC_ignore_local_variable("next_context", "smx_ctx_sysv_suspend_serial"); + 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", "*"); - MC_ignore_global_variable("compared_pointers"); + /* 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"); + + /* 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"); + + /* 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)); smx_process_t process; - xbt_swag_foreach(process, simix_global->process_list) { - MC_ignore_heap(&(process->process_hookup), - sizeof(process->process_hookup)); - } + // FIXME, cross-process support (simix_global->process_list) + + if (mc_mode == MC_MODE_STANDALONE || mc_mode == MC_MODE_CLIENT) { + xbt_swag_foreach(process, simix_global->process_list) { + MC_ignore_heap(&(process->process_hookup), + sizeof(process->process_hookup)); + } + } else { + // TODO + } } if (raw_mem_set) MC_SET_MC_HEAP; + if (mc_mode == MC_MODE_CLIENT) { + // This will move somehwere else: + MC_client_handle_messages(); + } + } /******************************* Core of MC *******************************/ @@ -420,38 +351,6 @@ void MC_exit(void) //xbt_abort(); } -int SIMIX_pre_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_pre(req, 0); - } - } -} - int MC_deadlock_check() { int deadlock = FALSE; @@ -459,8 +358,7 @@ int MC_deadlock_check() if (xbt_swag_size(simix_global->process_list)) { deadlock = TRUE; xbt_swag_foreach(process, simix_global->process_list) { - if (process->simcall.call != SIMCALL_NONE - && MC_request_is_enabled(&process->simcall)) { + if (MC_request_is_enabled(&process->simcall)) { deadlock = FALSE; break; } @@ -469,24 +367,54 @@ int MC_deadlock_check() return deadlock; } +void mc_update_comm_pattern(mc_call_type call_type, smx_simcall_t req, int value, xbt_dynar_t pattern) { + switch(call_type) { + case MC_CALL_TYPE_NONE: + break; + case MC_CALL_TYPE_SEND: + case MC_CALL_TYPE_RECV: + get_comm_pattern(pattern, req, call_type); + break; + case MC_CALL_TYPE_WAIT: + { + smx_synchro_t current_comm = NULL; + if (call_type == MC_CALL_TYPE_WAIT) + current_comm = simcall_comm_wait__get__comm(req); + else + current_comm = xbt_dynar_get_as(simcall_comm_waitany__get__comms(req), value, smx_synchro_t); + // First wait only must be considered: + if (current_comm->comm.refcount == 1) + complete_comm_pattern(pattern, current_comm); + break; + } + default: + xbt_die("Unexpected call type %i", (int)call_type); + } +} + /** * \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. + * + * 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) { int raw_mem = (mmalloc_get_current_heap() == mc_heap); - int value, i = 1, count = 1; + int value, i = 1, count = 1, j; char *req_str; smx_simcall_t req = NULL, saved_req = NULL; xbt_fifo_item_t item, start_item; mc_state_t state; smx_process_t process = NULL; - int comm_pattern = 0; - smx_action_t current_comm; XBT_DEBUG("**** Begin Replay ****"); @@ -508,7 +436,7 @@ void MC_replay(xbt_fifo_t stack, int start) MC_SET_MC_HEAP; - if ((mc_reduce_kind == e_mc_reduce_dpor) && !_sg_mc_comms_determinism && !_sg_mc_send_determinism) { + if (mc_reduce_kind == e_mc_reduce_dpor) { xbt_dict_reset(first_enabled_state); xbt_swag_foreach(process, simix_global->process_list) { if (MC_process_is_enabled(process)) { @@ -521,13 +449,16 @@ void MC_replay(xbt_fifo_t stack, int start) } if (_sg_mc_comms_determinism || _sg_mc_send_determinism) { - xbt_dynar_reset(communications_pattern); - xbt_dynar_reset(incomplete_communications_pattern); + for (j=0; jissuer->pid); - xbt_dict_remove(first_enabled_state, key); + if(xbt_dict_get_or_null(first_enabled_state, key)) + xbt_dict_remove(first_enabled_state, key); xbt_free(key); MC_SET_STD_HEAP; } @@ -557,46 +489,24 @@ void MC_replay(xbt_fifo_t stack, int start) } /* TODO : handle test and testany simcalls */ + mc_call_type call = MC_CALL_TYPE_NONE; if (_sg_mc_comms_determinism || _sg_mc_send_determinism) { - if (req->call == SIMCALL_COMM_ISEND) - comm_pattern = 1; - else if (req->call == SIMCALL_COMM_IRECV) - comm_pattern = 2; - else if (req->call == SIMCALL_COMM_WAIT) - comm_pattern = 3; - else if (req->call == SIMCALL_COMM_WAITANY) - comm_pattern = 4; + call = mc_get_call_type(req); } - SIMIX_simcall_pre(req, value); + SIMIX_simcall_handle(req, value); if (_sg_mc_comms_determinism || _sg_mc_send_determinism) { MC_SET_MC_HEAP; - if (comm_pattern == 1 || comm_pattern == 2) { - get_comm_pattern(communications_pattern, req, comm_pattern); - } else if (comm_pattern == 3 /* || comm_pattern == 4 */ ) { - current_comm = simcall_comm_wait__get__comm(req); - if (current_comm->comm.refcount == 1) { /* First wait only must be considered */ - complete_comm_pattern(communications_pattern, current_comm); - } - } else if (comm_pattern == 4 /* || comm_pattern == 4 */ ) { - current_comm = - xbt_dynar_get_as(simcall_comm_waitany__get__comms(req), value, - smx_action_t); - if (current_comm->comm.refcount == 1) { /* First wait only must be considered */ - complete_comm_pattern(communications_pattern, current_comm); - } - } + mc_update_comm_pattern(call, req, value, communications_pattern); MC_SET_STD_HEAP; - comm_pattern = 0; } - MC_wait_for_requests(); count++; - if ((mc_reduce_kind == e_mc_reduce_dpor) && !_sg_mc_comms_determinism && !_sg_mc_send_determinism) { + if (mc_reduce_kind == e_mc_reduce_dpor) { MC_SET_MC_HEAP; /* Insert in dict all enabled processes */ xbt_swag_foreach(process, simix_global->process_list) { @@ -634,12 +544,7 @@ void MC_replay_liveness(xbt_fifo_t stack, int all_stack) initial_global_state->raw_mem_set = (mmalloc_get_current_heap() == mc_heap); - int value; - char *req_str; - smx_simcall_t req = NULL, saved_req = NULL; xbt_fifo_item_t item; - mc_state_t state; - mc_pair_t pair; int depth = 1; XBT_DEBUG("**** Begin Replay ****"); @@ -652,14 +557,17 @@ void MC_replay_liveness(xbt_fifo_t stack, int all_stack) if (!initial_global_state->raw_mem_set) MC_SET_STD_HEAP; - if (all_stack) { - - item = xbt_fifo_get_last_item(stack); + /* Traverse the stack from the initial state and re-execute the transitions */ + for (item = xbt_fifo_get_last_item(stack); + all_stack ? depth <= xbt_fifo_size(stack) : item != xbt_fifo_get_first_item(stack); + item = xbt_fifo_get_prev_item(item)) { - while (depth <= xbt_fifo_size(stack)) { + mc_pair_t pair = (mc_pair_t) xbt_fifo_get_item_content(item); - pair = (mc_pair_t) xbt_fifo_get_item_content(item); - state = (mc_state_t) pair->graph_state; + mc_state_t state = (mc_state_t) pair->graph_state; + smx_simcall_t req = NULL, saved_req = NULL; + int value; + char *req_str; if (pair->requests > 0) { @@ -667,7 +575,7 @@ void MC_replay_liveness(xbt_fifo_t stack, int all_stack) //XBT_DEBUG("SavedReq->call %u", saved_req->call); if (saved_req != NULL) { - /* because we got a copy of the executed request, we have to fetch the + /* 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 */ req = &saved_req->issuer->simcall; //XBT_DEBUG("Req->call %u", req->call); @@ -681,60 +589,17 @@ void MC_replay_liveness(xbt_fifo_t stack, int all_stack) } - SIMIX_simcall_pre(req, value); + SIMIX_simcall_handle(req, value); MC_wait_for_requests(); } - depth++; - /* Update statistics */ mc_stats->visited_pairs++; mc_stats->executed_transitions++; - item = xbt_fifo_get_prev_item(item); - } - - } else { - - /* 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); - state = (mc_state_t) pair->graph_state; - - if (pair->requests > 0) { - - saved_req = MC_state_get_executed_request(state, &value); - //XBT_DEBUG("SavedReq->call %u", saved_req->call); - - if (saved_req != NULL) { - /* 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 */ - req = &saved_req->issuer->simcall; - //XBT_DEBUG("Req->call %u", req->call); - - /* Debug information */ - if (XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)) { - req_str = MC_request_to_string(req, value); - XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state); - xbt_free(req_str); - } - - } - - SIMIX_simcall_pre(req, value); - MC_wait_for_requests(); - } - depth++; - /* Update statistics */ - mc_stats->visited_pairs++; - mc_stats->executed_transitions++; } - } XBT_DEBUG("**** End Replay ****"); @@ -864,6 +729,8 @@ void MC_dump_stack_liveness(xbt_fifo_t stack) void MC_print_statistics(mc_stats_t stats) { + xbt_mheap_t previous_heap = mmalloc_get_current_heap(); + if (stats->expanded_pairs == 0) { XBT_INFO("Expanded states = %lu", stats->expanded_states); XBT_INFO("Visited states = %lu", stats->visited_states); @@ -885,7 +752,7 @@ void MC_print_statistics(mc_stats_t stats) XBT_INFO("Send-deterministic : %s", !initial_global_state->send_deterministic ? "No" : "Yes"); } - MC_SET_STD_HEAP; + mmalloc_set_current_heap(previous_heap); } void MC_assert(int prop) @@ -895,6 +762,7 @@ void MC_assert(int prop) 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(); @@ -906,23 +774,6 @@ void MC_cut(void) 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) { @@ -960,3 +811,51 @@ void MC_automaton_new_propositional_symbol(const char *id, void *fct) 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; +}