* under the terms of the license (GNU LGPL) which comes with this package. */
#define __STDC_FORMAT_MACROS
-#include <inttypes.h>
+#include <cinttypes>
#include <boost/unordered_set.hpp>
+#include <xbt/sysdep.h>
+
#include "internal_config.h"
+#include "mc_object_info.h"
+#include "mc_safety.h"
+#include "mc_liveness.h"
#include "mc_private.h"
+#include "mc_smx.h"
#ifdef HAVE_SMPI
#include "smpi/private.h"
#include "xbt/mmalloc.h"
#include "xbt/mmalloc/mmprivate.h"
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_compare, mc,
- "Logging specific to mc_compare");
+#include <xbt/probes.h>
+
+using simgrid::mc::remote;
typedef struct s_pointers_pair {
void *p1;
extern "C" {
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_compare, xbt,
+ "Logging specific to mc_compare in mc");
+
/************************** Free functions ****************************/
/********************************************************************/
static void stack_region_free(stack_region_t s)
{
if (s) {
- xbt_free(s->process_name);
xbt_free(s);
}
}
void* real_area2, mc_snapshot_t snapshot2, mc_mem_region_t region2,
dw_type_t type, int pointer_level)
{
+ mc_process_t process = &mc_model_checker->process();
+
unsigned int cursor = 0;
dw_type_t member, subtype, subsubtype;
int elm_size, i, res;
case DW_TAG_enumeration_type:
case DW_TAG_union_type:
{
- return mc_snapshot_region_memcmp(
+ return MC_snapshot_region_memcmp(
real_area1, region1, real_area2, region2,
type->byte_size) != 0;
}
case DW_TAG_reference_type:
case DW_TAG_rvalue_reference_type:
{
- void* addr_pointed1 = mc_snapshot_read_pointer_region(real_area1, region1);
- void* addr_pointed2 = mc_snapshot_read_pointer_region(real_area2, region2);
+ void* addr_pointed1 = MC_region_read_pointer(region1, real_area1);
+ void* addr_pointed2 = MC_region_read_pointer(region2, real_area2);
if (type->subtype && type->subtype->type == DW_TAG_subroutine_type) {
return (addr_pointed1 != addr_pointed2);
// * a pointer leads to the read-only segment of the current object;
// * a pointer lead to a different ELF object.
- if (addr_pointed1 > std_heap
+ if (addr_pointed1 > process->heap_address
&& addr_pointed1 < mc_snapshot_get_heap_end(snapshot1)) {
if (!
- (addr_pointed2 > std_heap
+ (addr_pointed2 > process->heap_address
&& addr_pointed2 < mc_snapshot_get_heap_end(snapshot2)))
return 1;
// The pointers are both in the heap:
}
// The pointers are both in the current object R/W segment:
- else if (mc_region_contain(region1, addr_pointed1)) {
- if (!mc_region_contain(region2, addr_pointed2))
+ else if (region1->contain(simgrid::mc::remote(addr_pointed1))) {
+ if (!region2->contain(simgrid::mc::remote(addr_pointed2)))
return 1;
if (type->dw_type_id == NULL)
return (addr_pointed1 != addr_pointed2);
mc_snapshot_t snapshot2)
{
xbt_assert(r1 && r2, "Missing region.");
+
+#ifdef HAVE_SMPI
+ if (r1->storage_type() == simgrid::mc::StorageType::Privatized) {
+ xbt_assert(process_index >= 0);
+ if (r2->storage_type() != simgrid::mc::StorageType::Privatized) {
+ return 1;
+ }
+
+ size_t process_count = MC_smpi_process_count();
+ xbt_assert(process_count == r1->privatized_data().size()
+ && process_count == r2->privatized_data().size());
+
+ // Compare the global variables separately for each simulates process:
+ for (size_t process_index = 0; process_index < process_count; process_index++) {
+ int is_diff = compare_global_variables(object_info, process_index,
+ &r1->privatized_data()[process_index],
+ &r2->privatized_data()[process_index],
+ snapshot1, snapshot2);
+ if (is_diff) return 1;
+ }
+ return 0;
+ }
+#else
+ xbt_assert(r1->storage_type() != simgrid::mc::StorageType::Privatized);
+#endif
+ xbt_assert(r2->storage_type() != simgrid::mc::StorageType::Privatized);
+
struct mc_compare_state state;
xbt_dynar_t variables;
(char *) current_var->address, snapshot2, r2,
bvariable_type, 0);
if (res == 1) {
+ XBT_TRACE3(mc, global_diff, -1, -1, current_var->name);
XBT_VERB("Global variable %s (%p) is different between snapshots",
current_var->name, (char *) current_var->address);
return 1;
if (res == 1) {
// TODO, fix current_varX->subprogram->name to include name if DW_TAG_inlined_subprogram
+ XBT_TRACE3(mc, local_diff, -1, -1, current_var1->name);
XBT_VERB
("Local variable %s (%p - %p) in frame %s is different between snapshots",
current_var1->name, current_var1->address, current_var2->address,
int snapshot_compare(void *state1, void *state2)
{
+ mc_process_t process = &mc_model_checker->process();
mc_snapshot_t s1, s2;
int num1, num2;
s2 = ((mc_visited_pair_t) state2)->graph_state->system_state;
num1 = ((mc_visited_pair_t) state1)->num;
num2 = ((mc_visited_pair_t) state2)->num;
+ }else if (_sg_mc_termination) { /* Non-progressive cycle MC */
+ s1 = ((mc_state_t) state1)->system_state;
+ s2 = ((mc_state_t) state2)->system_state;
+ num1 = ((mc_state_t) state1)->num;
+ num2 = ((mc_state_t) state2)->num;
} else { /* Safety or comm determinism MC */
s1 = ((mc_visited_state_t) state1)->system_state;
s2 = ((mc_visited_state_t) state2)->system_state;
if (_sg_mc_hash) {
hash_result = (s1->hash != s2->hash);
if (hash_result) {
+ XBT_TRACE2(mc, hash_diff, num1, num2);
XBT_VERB("(%d - %d) Different hash : 0x%" PRIx64 "--0x%" PRIx64, num1,
num2, s1->hash, s2->hash);
#ifndef MC_DEBUG
}
/* Compare enabled processes */
- unsigned int cursor;
- int pid;
- xbt_dynar_foreach(s1->enabled_processes, cursor, pid){
- if(!xbt_dynar_member(s2->enabled_processes, &pid))
+ if (s1->enabled_processes != s2->enabled_processes) {
+ //XBT_TRACE3(mc, state_diff, num1, num2, "Different enabled processes");
XBT_VERB("(%d - %d) Different enabled processes", num1, num2);
+ // return 1; ??
}
unsigned long i = 0;
XBT_VERB("(%d - %d) Different size used in stacks : %zu - %zu", num1,
num2, size_used1, size_used2);
#endif
+ XBT_TRACE3(mc, state_diff, num1, num2, "Different stack size");
xbt_os_walltimer_stop(timer);
xbt_os_timer_free(timer);
#endif
/* Init heap information used in heap comparison algorithm */
- xbt_mheap_t heap1 = (xbt_mheap_t) mc_snapshot_read(std_heap, s1, MC_NO_PROCESS_INDEX,
- alloca(sizeof(struct mdesc)), sizeof(struct mdesc));
- xbt_mheap_t heap2 = (xbt_mheap_t) mc_snapshot_read(std_heap, s2, MC_NO_PROCESS_INDEX,
- alloca(sizeof(struct mdesc)), sizeof(struct mdesc));
- res_init = init_heap_information(heap1, heap2, s1->to_ignore, s2->to_ignore);
+ xbt_mheap_t heap1 = (xbt_mheap_t)s1->read_bytes(
+ alloca(sizeof(struct mdesc)), sizeof(struct mdesc),
+ remote(process->heap_address),
+ simgrid::mc::ProcessIndexMissing, simgrid::mc::AddressSpace::Lazy);
+ xbt_mheap_t heap2 = (xbt_mheap_t)s2->read_bytes(
+ alloca(sizeof(struct mdesc)), sizeof(struct mdesc),
+ remote(process->heap_address),
+ simgrid::mc::ProcessIndexMissing, simgrid::mc::AddressSpace::Lazy);
+ res_init = init_heap_information(heap1, heap2, &s1->to_ignore, &s2->to_ignore);
if (res_init == -1) {
#ifdef MC_DEBUG
XBT_DEBUG("(%d - %d) Different heap information", num1, num2);
errors++;
#else
#ifdef MC_VERBOSE
+ XBT_TRACE3(mc, state_diff, num1, num2, "Different heap information");
XBT_VERB("(%d - %d) Different heap information", num1, num2);
#endif
#endif
/* Stacks comparison */
- cursor = 0;
+ unsigned cursor = 0;
int diff_local = 0;
#ifdef MC_DEBUG
is_diff = 0;
else diff_local =
compare_local_variables(stack1->process_index, s1, s2, stack1, stack2);
if (diff_local > 0) {
+ XBT_TRACE3(mc, state_diff, num1, num2, "Different local variables");
#ifdef MC_DEBUG
if (is_diff == 0) {
xbt_os_walltimer_stop(timer);
cursor++;
}
+ size_t regions_count = s1->snapshot_regions_count;
+ // TODO, raise a difference instead?
+ xbt_assert(regions_count == s2->snapshot_regions_count);
+ mc_comp_times->global_variables_comparison_time = 0;
- const char *names[3] = { "?", "libsimgrid", "binary" };
-#ifdef MC_DEBUG
- double *times[3] = {
- NULL,
- &mc_comp_times->libsimgrid_global_variables_comparison_time,
- &mc_comp_times->binary_global_variables_comparison_time
- };
-#endif
+ for (size_t k = 0; k != regions_count; ++k) {
+ mc_mem_region_t region1 = s1->snapshot_regions[k];
+ mc_mem_region_t region2 = s2->snapshot_regions[k];
+
+ // Preconditions:
+ if (region1->region_type() != simgrid::mc::RegionType::Data)
+ continue;
- mc_object_info_t object_infos[] = { NULL, mc_libsimgrid_info, mc_binary_info };
+ xbt_assert(region1->region_type() == region2->region_type());
+ xbt_assert(region1->object_info() == region2->object_info());
+ xbt_assert(region1->object_info());
+
+ const char* name = region1->object_info()->file_name;
- int k = 0;
- for (k = 2; k != 0; --k) {
#ifdef MC_DEBUG
if (is_diff == 0)
xbt_os_walltimer_stop(timer);
#endif
/* Compare global variables */
-#ifdef HAVE_SMPI
- if (object_infos[k] == mc_binary_info && smpi_privatize_global_variables) {
- // Compare the global variables separately for each simulates process:
- for (int process_index = 0; process_index < smpi_process_count(); process_index++) {
- is_diff =
- compare_global_variables(object_infos[k], process_index,
- s1->privatization_regions[process_index], s2->privatization_regions[process_index], s1, s2);
- if (is_diff) break;
- }
- }
- else
-#endif
- is_diff =
- compare_global_variables(object_infos[k], MC_NO_PROCESS_INDEX, s1->regions[k], s2->regions[k], s1, s2);
+ is_diff =
+ compare_global_variables(region1->object_info( ), simgrid::mc::AddressSpace::Normal,
+ region1, region2,
+ s1, s2);
if (is_diff != 0) {
+ XBT_TRACE3(mc, state_diff, num1, num2, "Different global variables");
#ifdef MC_DEBUG
xbt_os_walltimer_stop(timer);
- *times[k] = xbt_os_timer_elapsed(timer);
+ mc_comp_times->global_variables_comparison_time
+ += xbt_os_timer_elapsed(timer);
XBT_DEBUG("(%d - %d) Different global variables in %s", num1, num2,
- names[k]);
+ name);
errors++;
#else
#ifdef MC_VERBOSE
XBT_VERB("(%d - %d) Different global variables in %s", num1, num2,
- names[k]);
+ name);
#endif
reset_heap_information();
/* Compare heap */
if (mmalloc_compare_heap(s1, s2) > 0) {
+ XBT_TRACE3(mc, state_diff, num1, num2, "Different heap");
#ifdef MC_DEBUG
xbt_os_walltimer_stop(timer);
XBT_DEBUG("- Nb processes : %f", mc_comp_times->nb_processes_comparison_time);
XBT_DEBUG("- Nb bytes used : %f", mc_comp_times->bytes_used_comparison_time);
XBT_DEBUG("- Stacks sizes : %f", mc_comp_times->stacks_sizes_comparison_time);
- XBT_DEBUG("- Binary global variables : %f",
- mc_comp_times->binary_global_variables_comparison_time);
- XBT_DEBUG("- Libsimgrid global variables : %f",
- mc_comp_times->libsimgrid_global_variables_comparison_time);
+ XBT_DEBUG("- GLobal variables : %f", mc_comp_times->global_variables_comparison_time);
XBT_DEBUG("- Heap : %f", mc_comp_times->heap_comparison_time);
XBT_DEBUG("- Stacks : %f", mc_comp_times->stacks_comparison_time);
}
-/**************************** MC snapshot compare simcall **************************/
-/***********************************************************************************/
-
-int SIMIX_pre_mc_compare_snapshots(smx_simcall_t simcall,
- mc_snapshot_t s1, mc_snapshot_t s2)
-{
- return snapshot_compare(s1, s2);
-}
-
-int MC_compare_snapshots(void *s1, void *s2)
-{
-
- return simcall_mc_compare_snapshots(s1, s2);
-
-}
-
}
