int errors = 0;
- /*if(mdp1->headersize != mdp2->headersize){
- fprintf(stderr, "Different size of the file header for the mapped files\n");
- return 1;
- }
-
- if(mdp1->refcount != mdp2->refcount){
- fprintf(stderr, "Different number of processes that attached the heap\n");
- return 1;
- }
-
- if(strcmp(mdp1->magic, mdp2->magic) != 0){
- fprintf(stderr,"Different magic number\n");
- return 1;
- }
-
- if(mdp1->flags != mdp2->flags){
- fprintf(stderr,"Different flags\n");
- return 1;
- }
-
- if(mdp1->heapsize != mdp2->heapsize){
- fprintf(stderr,"Different number of info entries\n");
- return 1;
- }
-
- if(mdp1->heapbase != mdp2->heapbase){
- fprintf(stderr,"Different first block of the heap\n");
- return 1;
- }
-
- if(mdp1->heapindex != mdp2->heapindex){
- fprintf(stderr,"Different index for the heap table : %zu - %zu\n", mdp1->heapindex, mdp2->heapindex);
- return 1;
- }
-
- if(mdp1->base != mdp2->base){
- fprintf(stderr,"Different base address of the memory region\n");
- return 1;
- }
-
- if(mdp1->breakval != mdp2->breakval){
- fprintf(stderr,"Different current location in the memory region\n");
- return 1;
- }
-
- if(mdp1->top != mdp2->top){
- fprintf(stderr,"Different end of the current location in the memory region\n");
- return 1;
- }
-
- if(mdp1->fd != mdp2->fd){
- fprintf(stderr,"Different file descriptor for the file to which this malloc heap is mapped\n");
- return 1;
- }
-
- if(mdp1->version != mdp2->version){
- fprintf(stderr,"Different version of the mmalloc package\n");
- return 1;
- }*/
-
-
if(mdp1->heaplimit != mdp2->heaplimit){
fprintf(stderr,"Different limit of valid info table indices\n");
return 1;
size_t i, j;
void *addr_block1, *addr_block2, *addr_frag1, *addr_frag2;
- size_t frag_size = 0; /* FIXME: arbitrary initialization */
+ size_t frag_size;
i = 1;
int block_pointed1, block_pointed2;
void *addr_block_pointed1, *addr_block_pointed2;
- int frag_pointed1, frag_pointed2;
/* Check busy blocks*/
//for(k=0;k<mdp1->heapinfo[i].busy_block.size * BLOCKSIZE;k++){
for(k=0;k<mdp1->heapinfo[i].busy_block.busy_size;k++){
- if(memcmp(((char *)addr_block1) + k, ((char *)addr_block2) + k, 1) != 0){
- //fprintf(stderr, "Different byte (offset=%d) (%p - %p) in block %zu\n", k, (char *)addr_block1 + k, (char *)addr_block2 + k, i); fflush(NULL);
- pointer_align = (k / sizeof(void*)) * sizeof(void*);
- address_pointed1 = *((void **)((char *)addr_block1 + pointer_align));
- address_pointed2 = *((void **)((char *)addr_block2 + pointer_align));
- if(((address_pointed1 > (void *)s_heap) && (address_pointed1 < mdp1->breakval)) && ((address_pointed2 > (void *)s_heap) && (address_pointed2 < mdp2->breakval))){
- block_pointed1 = ((char*)address_pointed1 - (char*)((struct mdesc*)s_heap)->heapbase) / BLOCKSIZE + 1;
- block_pointed2 = ((char*)address_pointed2 - (char*)((struct mdesc*)s_heap)->heapbase) / BLOCKSIZE + 1;
- //fprintf(stderr, "Blocks pointed : %d - %d\n", block_pointed1, block_pointed2);
- if(mdp1->heapinfo[block_pointed1].type == mdp2->heapinfo[block_pointed2].type){
- if(mdp1->heapinfo[block_pointed1].type == 0){ // Large block
- while(mdp1->heapinfo[block_pointed1].busy_block.size == 0)
- block_pointed1--;
- while(mdp2->heapinfo[block_pointed2].busy_block.size == 0)
- block_pointed2--;
- if(mdp1->heapinfo[block_pointed1].busy_block.busy_size == mdp2->heapinfo[block_pointed2].busy_block.busy_size){
- addr_block_pointed1 = (char*)heapbase1 + ((block_pointed1 - 1)*BLOCKSIZE);
- addr_block_pointed2 = (char*)heapbase2 + ((block_pointed2 - 1)*BLOCKSIZE);
-
- fprintf(stderr, "Memcmp between blocks %d and %d (size = %zu)\n", block_pointed1, block_pointed2, mdp1->heapinfo[block_pointed1].busy_block.busy_size);
- if(memcmp(addr_block_pointed1, addr_block_pointed2, mdp1->heapinfo[block_pointed1].busy_block.busy_size) != 0){
- distance++;
- }else{
- fprintf(stderr, "False difference detected\n");
+ if((((char *)addr_block1) + k != 0) && (((char *)addr_block2) + k != 0)){
+ if(memcmp(((char *)addr_block1) + k, ((char *)addr_block2) + k, 1) != 0){
+ fprintf(stderr, "Different byte (offset=%d) (%p - %p) in block %zu\n", k, (char *)addr_block1 + k, (char *)addr_block2 + k, i); fflush(NULL);
+ pointer_align = (k / sizeof(void*)) * sizeof(void*);
+ address_pointed1 = *((void **)((char *)addr_block1 + pointer_align));
+ address_pointed2 = *((void **)((char *)addr_block2 + pointer_align));
+ if(((address_pointed1 > (void *)s_heap) && (address_pointed1 < mdp1->breakval)) && ((address_pointed2 > (void *)s_heap) && (address_pointed2 < mdp2->breakval))){
+ block_pointed1 = ((char*)address_pointed1 - (char*)((struct mdesc*)s_heap)->heapbase) % BLOCKSIZE;
+ block_pointed2 = ((char*)address_pointed2 - (char*)((struct mdesc*)s_heap)->heapbase) % BLOCKSIZE;
+ //fprintf(stderr, "Blocks pointed : %d - %d\n", block_pointed1, block_pointed2);
+ if((block_pointed1 == 0) && (block_pointed2 == 0)){
+ block_pointed1 = ((char*)address_pointed1 - (char*)((struct mdesc*)s_heap)->heapbase) / BLOCKSIZE + 1;
+ block_pointed2 = ((char*)address_pointed2 - (char*)((struct mdesc*)s_heap)->heapbase) / BLOCKSIZE + 1;
+ if(mdp1->heapinfo[block_pointed1].type == mdp2->heapinfo[block_pointed2].type){
+ if(mdp1->heapinfo[block_pointed1].type == 0){ // Large block
+ if(mdp1->heapinfo[block_pointed1].busy_block.busy_size == mdp2->heapinfo[block_pointed2].busy_block.busy_size){
+ addr_block_pointed1 = (char*)heapbase1 + ((block_pointed1 - 1)*BLOCKSIZE);
+ addr_block_pointed2 = (char*)heapbase2 + ((block_pointed2 - 1)*BLOCKSIZE);
+ if(memcmp(addr_block_pointed1, addr_block_pointed2, mdp1->heapinfo[block_pointed1].busy_block.busy_size) != 0){
+ distance++;
+ }else{
+ fprintf(stderr, "False difference detected\n");
+ }
+ }else{
+ distance++;
+ }
+ }else{ // Fragmented block
+ addr_block_pointed1 = (char*)mdp1 + ((char *)address_pointed1 - (char *)s_heap);
+ addr_block_pointed2 = (char*)mdp2 + ((char *)address_pointed2 - (char *)s_heap);
+ if(mdp1->heapinfo[block_pointed1].busy_frag.frag_size[0] == mdp2->heapinfo[block_pointed2].busy_frag.frag_size[0]){
+ if(memcmp(addr_block_pointed1, addr_block_pointed2, mdp1->heapinfo[block_pointed1].busy_frag.frag_size[0]) != 0){
+ fprintf(stderr, "Pointed fragments are different \n");
+ distance++;
+ }else{
+ fprintf(stderr, "False difference detected\n");
+ }
+ }else{
+ fprintf(stderr, "Different size of pointed fragments\n");
+ distance ++;
+ }
}
}else{
+ fprintf(stderr, "Pointers on blocks with different types \n");
distance++;
}
- }else{ // Fragmented block
- address_pointed1 = (char*)mdp1 + ((char*)address_pointed1 - (char*)s_heap);
- address_pointed2 = (char*)mdp2 + ((char*)address_pointed2 - (char*)s_heap);
- addr_block_pointed1 = (char*)heapbase1 + ((block_pointed1 - 1)*BLOCKSIZE);
- addr_block_pointed2 = (char*)heapbase2 + ((block_pointed2 - 1)*BLOCKSIZE);
- frag_pointed1 = 0;
- while(address_pointed1 > (void*)((char*)addr_block_pointed1 + ((frag_pointed1 +1 ) * frag_size))){
- frag_pointed1++;
- }
- frag_pointed2 = 0;
- while(address_pointed2 > (void*)((char*)addr_block_pointed2 + ((frag_pointed2 +1) * frag_size))){
- frag_pointed2++;
- }
- if(mdp1->heapinfo[block_pointed1].busy_frag.frag_size[frag_pointed1] == mdp2->heapinfo[block_pointed2].busy_frag.frag_size[frag_pointed2]){
- fprintf(stderr, "Memcmp between fragments %d (block %d) and %d (block %d) (size = %d)\n", frag_pointed1, block_pointed1, frag_pointed2, block_pointed2, mdp1->heapinfo[block_pointed1].busy_frag.frag_size[frag_pointed1]);
- if(memcmp((char*)addr_block_pointed1 + (frag_pointed1 * frag_size), (char*)addr_block_pointed2 + (frag_pointed2 * frag_size), mdp1->heapinfo[block_pointed1].busy_frag.frag_size[frag_pointed1]) != 0){
- distance++;
- }else{
- fprintf(stderr, "False difference detected\n");
- }
- }else{
- distance ++;
- }
-
-
+
+ }else{
+ /* FIXME : peut pointer vers le début d'un fragment mais dans un bloc */
+ fprintf(stderr, "Pointed addresses (%p - %p) not valid\n", address_pointed1, address_pointed2);
+ distance++;
}
}else{
- fprintf(stderr, "Pointers on blocks with different types \n");
+ fprintf(stderr, "Pointed addresses (%p - %p) not in std_heap\n", address_pointed1, address_pointed2);
distance++;
}
- }else{
- fprintf(stderr, "Pointed address not in std_heap");
- distance++;
- }
+ }
}
}
fprintf(stderr, "Hamming distance between blocks : %d\n", distance);
mmalloc_backtrace_block_display(mdp1, i);
mmalloc_backtrace_block_display(mdp2, i);
+ fprintf(stderr, "\n");
errors++;
total_distance += distance;
}
distance = 0;
//for(k=0;k<frag_size;k++){
for(k=0;k<mdp1->heapinfo[i].busy_frag.frag_size[j];k++){
- if(memcmp(((char *)addr_frag1) + k, ((char *)addr_frag2) + k, 1) != 0){
- //fprintf(stderr, "Different byte (offset=%d) (%p - %p) in fragment %zu in block %zu\n", k, (char *)addr_frag1 + k, (char *)addr_frag2 + k, j, i); fflush(NULL);
- pointer_align = (k / sizeof(void*)) * sizeof(void*);
- address_pointed1 = *((void **)((char *)addr_frag1 + pointer_align));
- address_pointed2 = *((void **)((char *)addr_frag2 + pointer_align));
- if(((address_pointed1 > (void *)s_heap) && (address_pointed1 < mdp1->breakval)) && ((address_pointed2 > (void *)s_heap) && (address_pointed2 < mdp2->breakval))){
- block_pointed1 = ((char*)address_pointed1 - (char*)((struct mdesc*)s_heap)->heapbase) / BLOCKSIZE + 1;
- block_pointed2 = ((char*)address_pointed2 - (char*)((struct mdesc*)s_heap)->heapbase) / BLOCKSIZE + 1;
- //fprintf(stderr, "Blocks pointed : %d - %d\n", block_pointed1, block_pointed2);
- if(mdp1->heapinfo[block_pointed1].type == mdp2->heapinfo[block_pointed2].type){
- if(mdp1->heapinfo[block_pointed1].type == 0){ // Large block
- while(mdp1->heapinfo[block_pointed1].busy_block.size == 0)
- block_pointed1--;
- while(mdp2->heapinfo[block_pointed2].busy_block.size == 0)
- block_pointed2--;
- if(mdp1->heapinfo[block_pointed1].busy_block.busy_size == mdp2->heapinfo[block_pointed2].busy_block.busy_size){
- addr_block_pointed1 = (char*)heapbase1 + ((block_pointed1 - 1)*BLOCKSIZE);
- addr_block_pointed2 = (char*)heapbase2 + ((block_pointed2 - 1)*BLOCKSIZE);
- fprintf(stderr, "Memcmp between blocks %d and %d (size = %zu)\n", block_pointed1, block_pointed2, mdp1->heapinfo[block_pointed1].busy_block.busy_size);
- if(memcmp(addr_block_pointed1, addr_block_pointed2, mdp1->heapinfo[block_pointed1].busy_block.busy_size) != 0){
- distance++;
- }else{
- fprintf(stderr, "False difference detected\n");
+ if((((char *)addr_frag1) + k != 0) && (((char *)addr_frag2) + k != 0)){
+ if(memcmp(((char *)addr_frag1) + k, ((char *)addr_frag2) + k, 1) != 0){
+ fprintf(stderr, "Different byte (offset=%d) (%p - %p) in fragment %zu in block %zu\n", k, (char *)addr_frag1 + k, (char *)addr_frag2 + k, j, i); fflush(NULL);
+ pointer_align = (k / sizeof(void*)) * sizeof(void*);
+ address_pointed1 = *((void **)((char *)addr_frag1 + pointer_align));
+ address_pointed2 = *((void **)((char *)addr_frag2 + pointer_align));
+ if(((address_pointed1 > (void *)s_heap) && (address_pointed1 < mdp1->breakval)) && ((address_pointed2 > (void *)s_heap) && (address_pointed2 < mdp2->breakval))){
+ block_pointed1 = ((char*)address_pointed1 - (char*)((struct mdesc*)s_heap)->heapbase) % BLOCKSIZE;
+ block_pointed2 = ((char*)address_pointed2 - (char*)((struct mdesc*)s_heap)->heapbase) % BLOCKSIZE;
+ if((block_pointed1 == 0) && (block_pointed2 == 0)){
+ block_pointed1 = ((char*)address_pointed1 - (char*)((struct mdesc*)s_heap)->heapbase) / BLOCKSIZE + 1;
+ block_pointed2 = ((char*)address_pointed2 - (char*)((struct mdesc*)s_heap)->heapbase) / BLOCKSIZE + 1;
+ if(mdp1->heapinfo[block_pointed1].type == mdp2->heapinfo[block_pointed2].type){
+ if(mdp1->heapinfo[block_pointed1].type == 0){ // Large block
+ if(mdp1->heapinfo[block_pointed1].busy_block.busy_size == mdp2->heapinfo[block_pointed2].busy_block.busy_size){
+ addr_block_pointed1 = (char*)heapbase1 + ((block_pointed1 - 1)*BLOCKSIZE);
+ addr_block_pointed2 = (char*)heapbase2 + ((block_pointed2 - 1)*BLOCKSIZE);
+ fprintf(stderr, "Memcmp between blocks %d and %d (size = %zu)\n", block_pointed1, block_pointed2, mdp1->heapinfo[block_pointed1].busy_block.busy_size);
+ if(memcmp(addr_block_pointed1, addr_block_pointed2, mdp1->heapinfo[block_pointed1].busy_block.busy_size) != 0){
+ distance++;
+ }else{
+ fprintf(stderr, "False difference detected\n");
+ }
+ }else{
+ distance++;
+ }
+ }else{ // Fragmented block
+ addr_block_pointed1 = (char*)mdp1 + ((char *)address_pointed1 - (char *)s_heap);
+ addr_block_pointed2 = (char*)mdp2 + ((char *)address_pointed2 - (char *)s_heap);
+ if(mdp1->heapinfo[block_pointed1].busy_frag.frag_size[0] == mdp2->heapinfo[block_pointed2].busy_frag.frag_size[0]){
+ if(memcmp(addr_block_pointed1, addr_block_pointed2, mdp1->heapinfo[block_pointed1].busy_frag.frag_size[0]) != 0){
+ distance++;
+ }else{
+ fprintf(stderr, "False difference detected\n");
+ }
+ }else{
+ distance ++;
+ }
}
}else{
+ fprintf(stderr, "Pointers on blocks with different types \n");
distance++;
}
- }else{ // Fragmented block
- address_pointed1 = (char*)mdp1 + ((char*)address_pointed1 - (char*)s_heap);
- address_pointed2 = (char*)mdp2 + ((char*)address_pointed2 - (char*)s_heap);
- addr_block_pointed1 = (char*)heapbase1 + ((block_pointed1 - 1)*BLOCKSIZE);
- addr_block_pointed2 = (char*)heapbase2 + ((block_pointed2 - 1)*BLOCKSIZE);
- frag_pointed1 = 0;
- while(address_pointed1 > (void*)((char*)addr_block_pointed1 + ((frag_pointed1 + 1) * frag_size))){
- frag_pointed1++;
- }
- frag_pointed2 = 0;
- while(address_pointed2 > (void*)((char*)addr_block_pointed2 + ((frag_pointed2 + 1) * frag_size))){
- frag_pointed2++;
- }
- if(mdp1->heapinfo[block_pointed1].busy_frag.frag_size[frag_pointed1] == mdp2->heapinfo[block_pointed2].busy_frag.frag_size[frag_pointed2]){
- fprintf(stderr, "Memcmp between fragments %d (block %d) and %d (block %d) (size = %d)\n", frag_pointed1, block_pointed1, frag_pointed2, block_pointed2, mdp1->heapinfo[block_pointed1].busy_frag.frag_size[frag_pointed1]);
- if(memcmp((char*)addr_block_pointed1 + (frag_pointed1 * frag_size), (char*)addr_block_pointed2 + (frag_pointed2 * frag_size), mdp1->heapinfo[block_pointed1].busy_frag.frag_size[frag_pointed1]) != 0){
- distance++;
- }else{
- fprintf(stderr, "False difference detected\n");
- }
- }else{
- distance ++;
- }
+ }else{
+ /* FIXME : peut pointer vers le début d'un fragment mais dans un bloc */
+ fprintf(stderr, "Pointed addresses (%p - %p) not valid \n", address_pointed1, address_pointed2);
+ distance++;
}
}else{
- fprintf(stderr, "Pointers on blocks with different types \n");
+ fprintf(stderr, "Pointed addresses (%p - %p) not in std_heap\n", address_pointed1, address_pointed2);
distance++;
}
- }else{
- fprintf(stderr, "Pointed address not in std_heap");
- distance++;
}
}
fprintf(stderr, "Hamming distance between fragments : %d\n", distance);
mmalloc_backtrace_fragment_display(mdp1, i, j);
mmalloc_backtrace_fragment_display(mdp2, i, j);
+ fprintf(stderr, "\n");
errors++;
total_distance += distance;