while(i < maps->mapsize){
r = maps->regions[i];
if (maps->regions[i].pathname != NULL){
- if (!memcmp(maps->regions[i].pathname, "[stack]", 7)){
- size_t diff = (char*)reg->start_addr - (char*)r.start_addr;
- void *segment = malloc(reg->size + diff);
- XBT_DEBUG("Size of segment : %zu", sizeof(segment));
- memcpy((char *)segment + diff, reg->data, reg->size);
- memcpy(r.start_addr, segment, sizeof(segment));
- XBT_DEBUG("Memcpy region ok");
- break;
- }
+ if (!memcmp(maps->regions[i].pathname, "[stack]", 7)){
+ size_t diff = (char*)reg->start_addr - (char*)r.start_addr;
+ void *segment = malloc(reg->size + diff);
+ XBT_DEBUG("Size of segment : %zu", sizeof(segment));
+ memcpy((char *)segment + diff, reg->data, reg->size);
+ memcpy(r.start_addr, segment, sizeof(segment));
+ XBT_DEBUG("Memcpy region ok");
+ break;
+ }
}
i++;
}
if ((reg.prot & PROT_WRITE)){
if (maps->regions[i].pathname == NULL){
if (reg.start_addr == std_heap){ // only save the std heap (and not the raw one)
- MC_snapshot_add_region(snapshot, 0, reg.start_addr, (char*)reg.end_addr - (char*)reg.start_addr);
+ MC_snapshot_add_region(snapshot, 0, reg.start_addr, (char*)reg.end_addr - (char*)reg.start_addr);
}
} else {
if (!memcmp(basename(maps->regions[i].pathname), "libsimgrid", 10)){
MC_snapshot_add_region(snapshot, 1, reg.start_addr, (char*)reg.end_addr - (char*)reg.start_addr);
} else {
- if (!memcmp(basename(maps->regions[i].pathname), basename(xbt_binary_name), strlen(basename(xbt_binary_name)))){
- MC_snapshot_add_region(snapshot, 2, reg.start_addr, (char*)reg.end_addr - (char*)reg.start_addr);
- }
- }
+ if (!memcmp(basename(maps->regions[i].pathname), basename(xbt_binary_name), strlen(basename(xbt_binary_name)))){
+ MC_snapshot_add_region(snapshot, 2, reg.start_addr, (char*)reg.end_addr - (char*)reg.start_addr);
+ }
+ }
}
}
i++;
xbt_free(snapshot);
}
+static int data_program_region_compare(void *d1, void *d2, size_t size);
+static int data_libsimgrid_region_compare(void *d1, void *d2, size_t size);
+
+static int data_program_region_compare(void *d1, void *d2, size_t size){
+ int distance = 0;
+ int i;
+
+ for(i=0; i<size; i++){
+ if(memcmp(((char *)d1) + i, ((char *)d2) + i, 1) != 0){
+ fprintf(stderr,"Different byte (offset=%d) (%p - %p) in data program region\n", i, (char *)d1 + i, (char *)d2 + i);
+ distance++;
+ }
+ }
+
+ fprintf(stderr, "Hamming distance between data program regions : %d\n", distance);
+
+ return distance;
+}
+
+int data_libsimgrid_region_compare(void *d1, void *d2, size_t size){
+ int distance = 0;
+ int i;
+
+ for(i=0; i<size; i++){
+ if(memcmp(((char *)d1) + i, ((char *)d2) + i, 1) != 0){
+ fprintf(stderr, "Different byte (offset=%d) (%p - %p) in data libsimgrid region\n", i, (char *)d1 + i, (char *)d2 + i);
+ distance++;
+ }
+ }
+
+ fprintf(stderr, "Hamming distance between data libsimgrid regions : %d\n", distance);
+
+ return distance;
+}
+
+int snapshot_compare(mc_snapshot_t s1, mc_snapshot_t s2){
+
+
+ if(s1->num_reg != s2->num_reg){
+ XBT_INFO("Different num_reg (s1 = %u, s2 = %u)", s1->num_reg, s2->num_reg);
+ return 1;
+ }
+
+ int i;
+ int errors = 0;
+
+ for(i=0 ; i< s1->num_reg ; i++){
+
+ if(s1->regions[i]->type != s2->regions[i]->type){
+ XBT_INFO("Different type of region");
+ errors++;
+ }
+
+ switch(s1->regions[i]->type){
+ case 0:
+ if(s1->regions[i]->size != s2->regions[i]->size){
+ XBT_INFO("Different size of heap (s1 = %zu, s2 = %zu)", s1->regions[i]->size, s2->regions[i]->size);
+ errors++;
+ }
+ if(s1->regions[i]->start_addr != s2->regions[i]->start_addr){
+ XBT_INFO("Different start addr of heap (s1 = %p, s2 = %p)", s1->regions[i]->start_addr, s2->regions[i]->start_addr);
+ errors++;
+ }
+ if(mmalloc_compare_heap(s1->regions[i]->data, s2->regions[i]->data)){
+ XBT_INFO("Different heap (mmalloc_compare)");
+ errors++;
+ }
+ break;
+ case 1 :
+ if(s1->regions[i]->size != s2->regions[i]->size){
+ XBT_INFO("Different size of libsimgrid (s1 = %zu, s2 = %zu)", s1->regions[i]->size, s2->regions[i]->size);
+ errors++;
+ }
+ if(s1->regions[i]->start_addr != s2->regions[i]->start_addr){
+ XBT_INFO("Different start addr of libsimgrid (s1 = %p, s2 = %p)", s1->regions[i]->start_addr, s2->regions[i]->start_addr);
+ errors++;
+ }
+ if(data_libsimgrid_region_compare(s1->regions[i]->data, s2->regions[i]->data, s1->regions[i]->size) != 0){
+ XBT_INFO("Different memcmp for data in libsimgrid");
+ errors++;
+ }
+ break;
+ case 2 :
+ if(s1->regions[i]->size != s2->regions[i]->size){
+ XBT_INFO("Different size of data program (s1 = %zu, s2 = %zu)", s1->regions[i]->size, s2->regions[i]->size);
+ errors++;
+ }
+ if(s1->regions[i]->start_addr != s2->regions[i]->start_addr){
+ XBT_INFO("Different start addr of data program (s1 = %p, s2 = %p)", s1->regions[i]->start_addr, s2->regions[i]->start_addr);
+ errors++;
+ }
+ if(data_program_region_compare(s1->regions[i]->data, s2->regions[i]->data, s1->regions[i]->size) != 0){
+ XBT_INFO("Different memcmp for data in program");
+ errors++;
+ }
+ break;
+ default:
+ break;
+ }
+ }
+
+ return (errors > 0);
+
+}