extern char *xbt_binary_name;
+static int compare_area(void *area1, void* area2, size_t size, xbt_dynar_t previous);
+static void heap_area_pair_free(heap_area_pair_t pair);
+static void heap_area_pair_free_voidp(void *d);
+static int add_heap_area_pair(xbt_dynar_t list, int block1, int fragment1, int block2, int fragment2);
+static int is_new_heap_area_pair(xbt_dynar_t list, int block1, int fragment1, int block2, int fragment2);
+static void match_equals(xbt_dynar_t list);
+
+
void mmalloc_backtrace_block_display(void* heapinfo, size_t block){
xbt_ex_t e;
}
}
+
+malloc_info *heapinfo1 = NULL, *heapinfo2 = NULL;
+size_t heapsize1, heapsize2, heaplimit;
+void *s_heap = NULL, *heapbase1 = NULL, *heapbase2 = NULL;
+
int mmalloc_compare_heap(xbt_mheap_t mdp1, xbt_mheap_t mdp2){
if(mdp1 == NULL && mdp2 == NULL){
return 0;
}
- int errors = mmalloc_compare_mdesc(mdp1, mdp2);
-
- return (errors > 0);
-
-}
-
-void *s_heap;
-malloc_info *heapinfo1, *heapinfo2;
-void *heapbase1, *heapbase2;
-size_t heapsize1, heapsize2;
-
-int mmalloc_compare_mdesc(struct mdesc *mdp1, struct mdesc *mdp2){
-
- int errors = 0;
-
if(mdp1->heaplimit != mdp2->heaplimit){
fprintf(stderr,"Different limit of valid info table indices\n");
return 1;
}
- s_heap = (char *)mmalloc_get_current_heap() - STD_HEAP_SIZE - getpagesize();
+ /* Heap information */
+ heaplimit = mdp1->heaplimit;
- fprintf(stderr, "s_heap->heapbase : %p\n", ((struct mdesc*)s_heap)->heapbase);
+ s_heap = (char *)mmalloc_get_current_heap() - STD_HEAP_SIZE - getpagesize();
heapbase1 = (char *)mdp1 + BLOCKSIZE;
heapbase2 = (char *)mdp2 + BLOCKSIZE;
- fprintf(stderr, "Heapbase1 : %p, Heapbase2 : %p\n", heapbase1, heapbase2);
- fprintf(stderr, "Heapinfo : %p\n", mdp1->heapinfo);
-
heapinfo1 = (malloc_info *)((char *)mdp1 + ((char *)mdp1->heapinfo - (char *)s_heap));
heapinfo2 = (malloc_info *)((char *)mdp2 + ((char *)mdp2->heapinfo - (char *)s_heap));
- fprintf(stderr, "Heapinfo1 : %p, Heapinfo2 : %p\n", heapinfo1, heapinfo2);
-
heapsize1 = mdp1->heapsize;
heapsize2 = mdp2->heapsize;
- size_t i, j;
+
+ /* Start comparison */
+ size_t i1 = 1, i2, j1, j2;
void *addr_block1 = NULL, *addr_block2 = NULL, *addr_frag1 = NULL, *addr_frag2 = NULL;
- size_t frag_size;
+ size_t frag_size1, frag_size2;
- i = 1;
+ xbt_dynar_t previous = xbt_dynar_new(sizeof(heap_area_pair_t), heap_area_pair_free_voidp);
- int k = 0;
- int distance = 0;
- int total_distance = 0;
+ int equal = 0, k;
+
+ /* Check busy blocks*/
- int pointer_align;
- void *address_pointed1 = NULL, *address_pointed2 = NULL;
+ while(i1 <= heaplimit){
- int block_pointed1, block_pointed2, frag_pointed1, frag_pointed2;
- void *addr_block_pointed1 = NULL, *addr_block_pointed2 = NULL, *addr_frag_pointed1 = NULL, *addr_frag_pointed2 = NULL;
+ i2 = 1;
+ equal = 0;
- /* Check busy blocks*/
+ if(heapinfo1[i1].type == -1){ /* Free block */
+ i1++;
+ continue;
+ }
- while(i < mdp1->heaplimit){
+ addr_block1 = ((void*) (((ADDR2UINT(i1)) - 1) * BLOCKSIZE + (char*)heapbase1));
- if(heapinfo1[i].type != heapinfo2[i].type){
- fprintf(stderr,"Different type of block : %d - %d\n", heapinfo1[i].type, heapinfo2[i].type);
- errors++;
- }
+ if(heapinfo1[i1].type == 0){ /* Large block */
- /* Get address of block i in each heap */
- addr_block1 = ((void*) (((ADDR2UINT(i)) - 1) * BLOCKSIZE + (char*)heapbase1));
- addr_block2 = ((void*) (((ADDR2UINT(i)) - 1) * BLOCKSIZE + (char*)heapbase2));
+ while(i2 <= heaplimit && !equal){
- if(heapinfo1[i].type == 0){ /* busy large block */
+ if(heapinfo2[i2].type != 0){
+ i2++;
+ continue;
+ }
- if(heapinfo1[i].busy_block.size != heapinfo2[i].busy_block.size){
- fprintf(stderr,"Different size of a large cluster : %zu - %zu\n", heapinfo1[i].busy_block.size, heapinfo2[i].busy_block.size);
- fflush(NULL);
- errors++;
- }
+ if(heapinfo2[i2].busy_block.equal_to == 1){
+ i2++;
+ continue;
+ }
+
+ if(heapinfo1[i1].busy_block.size != heapinfo2[i2].busy_block.size){
+ i2++;
+ continue;
+ }
+
+ if(heapinfo1[i1].busy_block.busy_size != heapinfo2[i2].busy_block.busy_size){
+ i2++;
+ continue;
+ }
- if(heapinfo1[i].busy_block.busy_size != heapinfo2[i].busy_block.busy_size){
- fprintf(stderr,"Different busy_size of a large cluster : %zu - %zu\n", heapinfo1[i].busy_block.busy_size, heapinfo2[i].busy_block.busy_size);
- fflush(NULL);
- errors++;
- }
+ addr_block2 = ((void*) (((ADDR2UINT(i2)) - 1) * BLOCKSIZE + (char*)heapbase2));
+
+ /* Comparison */
+ add_heap_area_pair(previous, i1, -1, i2, -1);
+ if(!compare_area(addr_block1, addr_block2, heapinfo1[i1].busy_block.busy_size, previous)){
+ for(k=0; k < heapinfo2[i2].busy_block.size; k++)
+ heapinfo2[i2+k].busy_block.equal_to = 1;
+ for(k=0; k < heapinfo1[i1].busy_block.size; k++)
+ heapinfo1[i1+k].busy_block.equal_to = 1;
+ equal = 1;
+ match_equals(previous);
+ }
+ xbt_dynar_reset(previous);
- /* Hamming distance on different blocks */
- distance = 0;
+ i2++;
+ }
- for(k=0;k<heapinfo1[i].busy_block.busy_size;k++){
+ }else{ /* Fragmented block */
- if(memcmp(((char *)addr_block1) + k, ((char *)addr_block2) + k, 1) != 0){
+ frag_size1 = pow(2, heapinfo1[i1].type);
- fprintf(stderr, "Different byte (offset=%d) (%p - %p) in block %zu\n", k, (char *)addr_block1 + k, (char *)addr_block2 + k, i); fflush(NULL);
-
- /* Check if pointer difference */
- pointer_align = (k >> sizeof(void*)) * sizeof(void*);
- address_pointed1 = *((void **)((char *)addr_block1 + pointer_align));
- address_pointed2 = *((void **)((char *)addr_block2 + pointer_align));
+ for(j1=0; j1<(BLOCKSIZE/frag_size1); j1++){
- fprintf(stderr, "Addresses pointed : %p - %p \n", address_pointed1, address_pointed2);
-
- /* Get block number */
- 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(heapinfo1[i1].busy_frag.frag_size[j1] == 0) /* Free fragment */
+ continue;
+
+ addr_frag1 = (char *)addr_block1 + (j1 * frag_size1);
+
+ i2 = 1;
+ equal = 0;
+
+ while(i2 <= heaplimit && !equal){
- if((char *) address_pointed1 < (char*)((struct mdesc*)s_heap)->heapbase || block_pointed1 > heapsize1 || block_pointed1 < 1 || (char *) address_pointed2 < (char*)((struct mdesc*)s_heap)->heapbase || block_pointed2 > heapsize2 || block_pointed2 < 1) {
- fprintf(stderr, "Unknown pointer(s) ! \n");
- fflush(NULL);
- distance++;
+ if(heapinfo2[i2].type <= 0){
+ i2++;
continue;
}
-
- addr_block_pointed1 = ((void*) (((ADDR2UINT((size_t)block_pointed1)) - 1) * BLOCKSIZE + (char*)heapbase1));
- addr_block_pointed2 = ((void*) (((ADDR2UINT((size_t)block_pointed2)) - 1) * BLOCKSIZE + (char*)heapbase2));
+
+ frag_size2 = pow(2, heapinfo2[i2].type);
- fprintf(stderr, "Addr blocks pointed : %p - %p\n", addr_block_pointed1, addr_block_pointed2);
+ for(j2=0; j2< (BLOCKSIZE/frag_size2); j2++){
- if(heapinfo1[block_pointed1].type == heapinfo2[block_pointed2].type){
-
- if(heapinfo1[block_pointed1].type == 0){ // Large block
-
- if(heapinfo1[block_pointed1].busy_block.busy_size == heapinfo2[block_pointed2].busy_block.busy_size){
-
- if(memcmp(addr_block_pointed1, addr_block_pointed2, heapinfo1[block_pointed1].busy_block.busy_size) != 0){
- distance++;
- }else{
- fprintf(stderr, "False difference detected\n");
- }
-
- }else{
- distance++;
- }
-
- }else{ // Fragmented block
-
- /* Get fragment number */
- frag_pointed1 = ((uintptr_t) (ADDR2UINT (address_pointed1) % (BLOCKSIZE))) >> ((struct mdesc*)s_heap)->heapinfo[block_pointed1].type;
- frag_pointed2 = ((uintptr_t) (ADDR2UINT (address_pointed2) % (BLOCKSIZE))) >> ((struct mdesc*)s_heap)->heapinfo[block_pointed2].type;
-
- fprintf(stderr, "Fragments pointed : %d - %d\n", frag_pointed1, frag_pointed2);
-
- addr_frag_pointed1 = (char*)addr_block_pointed1 + (frag_pointed1 * (int)pow(2, heapinfo1[block_pointed1].type));
- addr_frag_pointed2 = (char*)addr_block_pointed2 + (frag_pointed2 * (int)pow(2, heapinfo2[block_pointed2].type));
-
- fprintf(stderr, "Addr frag pointed : %p - %p\n", addr_frag_pointed1, addr_frag_pointed2);
-
- fprintf(stderr, "Size used in fragments pointed : %d - %d\n", heapinfo1[block_pointed1].busy_frag.frag_size[frag_pointed1], heapinfo2[block_pointed2].busy_frag.frag_size[frag_pointed2]);
-
- if(heapinfo1[block_pointed1].busy_frag.frag_size[frag_pointed1] == heapinfo2[block_pointed2].busy_frag.frag_size[frag_pointed2]){
-
- if(memcmp(addr_frag_pointed1, addr_frag_pointed2, heapinfo1[block_pointed1].busy_frag.frag_size[frag_pointed1]) != 0){
- distance++;
- }else{
- fprintf(stderr, "False difference detected\n");
- }
-
- }else{
- distance ++;
- }
+ if(heapinfo2[i2].busy_frag.equal_to[j2] == 1){
+ continue;
}
-
- }else{
-
- if(((heapinfo1[block_pointed1].type == 0) && (heapinfo2[block_pointed2].type != 0)) || ((heapinfo1[block_pointed1].type != 0) && (heapinfo2[block_pointed2].type == 0))){
- fprintf(stderr, "Pointers on blocks with different types \n");
- distance++;
- }else{
- frag_pointed1 = ((uintptr_t) (ADDR2UINT (address_pointed1) % (BLOCKSIZE))) >> ((struct mdesc*)s_heap)->heapinfo[block_pointed1].type;
- frag_pointed2 = ((uintptr_t) (ADDR2UINT (address_pointed2) % (BLOCKSIZE))) >> ((struct mdesc*)s_heap)->heapinfo[block_pointed2].type;
-
- fprintf(stderr, "Fragments pointed : %d - %d\n", frag_pointed1, frag_pointed2);
-
- addr_frag_pointed1 = (char*)addr_block_pointed1 + (frag_pointed1 * (int)pow(2, heapinfo1[block_pointed1].type));
- addr_frag_pointed2 = (char*)addr_block_pointed2 + (frag_pointed2 * (int)pow(2, heapinfo2[block_pointed2].type));
-
- fprintf(stderr, "Addr frag pointed : %p - %p\n", addr_frag_pointed1, addr_frag_pointed2);
-
- fprintf(stderr, "Size used in fragments pointed : %d - %d\n", heapinfo1[block_pointed1].busy_frag.frag_size[frag_pointed1], heapinfo2[block_pointed2].busy_frag.frag_size[frag_pointed2]);
-
- if(heapinfo1[block_pointed1].busy_frag.frag_size[frag_pointed1] == heapinfo2[block_pointed2].busy_frag.frag_size[frag_pointed2]){
-
- if(memcmp(addr_frag_pointed1, addr_frag_pointed2, heapinfo1[block_pointed1].busy_frag.frag_size[frag_pointed1]) != 0){
- distance++;
- }else{
- fprintf(stderr, "False difference detected\n");
- }
-
- }else{
- distance ++;
- }
+ if(heapinfo1[i1].busy_frag.frag_size[j1] != heapinfo2[i2].busy_frag.frag_size[j2]){ /* Different size_used */
+ continue;
}
+
+ addr_block2 = ((void*) (((ADDR2UINT(i2)) - 1) * BLOCKSIZE + (char*)heapbase2));
+ addr_frag2 = (char *)addr_block2 + (j2 * frag_size2);
+
+ /* Comparison */
+ add_heap_area_pair(previous, i1, j1, i2, j2);
+ if(!compare_area(addr_frag1, addr_frag2, heapinfo1[i1].busy_frag.frag_size[j1], previous)){
+ heapinfo2[i2].busy_frag.equal_to[j2] = 1;
+ heapinfo1[i1].busy_frag.equal_to[j1] = 1;
+ equal = 1;
+ match_equals(previous);
+ break;
+ }
+ xbt_dynar_reset(previous);
+
}
- }
-
- }
+ i2++;
- if(distance>0){
- fprintf(stderr,"\nDifferent data in large block %zu (size = %zu (in blocks), busy_size = %zu (in bytes))\n", i, heapinfo1[i].busy_block.size, heapinfo1[i].busy_block.busy_size);
- fflush(NULL);
- fprintf(stderr, "Hamming distance between blocks : %d\n", distance);
- mmalloc_backtrace_block_display(heapinfo1, i);
- mmalloc_backtrace_block_display(heapinfo2, i);
- fprintf(stderr, "\n");
- errors++;
- total_distance += distance;
- }
+ }
- i++;
+ }
- }else{
+ }
- if(heapinfo1[i].type > 0){ /* busy fragmented block */
+ i1++;
- if(heapinfo1[i].type != heapinfo2[i].type){
- fprintf(stderr,"Different size of fragments in fragmented block %zu : %d - %d\n", i, heapinfo1[i].type, heapinfo2[i].type); fflush(NULL);
- errors++;
- }
+ }
- if(heapinfo1[i].busy_frag.nfree != heapinfo2[i].busy_frag.nfree){
- fprintf(stderr,"Different free fragments in fragmented block %zu : %zu - %zu\n", i, heapinfo1[i].busy_frag.nfree, heapinfo2[i].busy_frag.nfree); fflush(NULL);
- errors++;
+ /* All blocks/fragments are equal to another block/fragment ? */
+ int i = 1, j;
+ int nb_diff1 = 0, nb_diff2 = 0;
+ int frag_size;
+
+ while(i<=heaplimit){
+ if(heapinfo1[i].type == 0){
+ if(heapinfo1[i].busy_block.busy_size > 0){
+ if(heapinfo1[i].busy_block.equal_to == -1){
+ addr_block1 = ((void*) (((ADDR2UINT((size_t)i)) - 1) * BLOCKSIZE + (char*)heapbase1));
+ fprintf(stderr, "Block %d (%p) not found (size used = %zu)\n", i, addr_block1, heapinfo1[i].busy_block.busy_size);
+ mmalloc_backtrace_block_display(heapinfo1, i);
+ nb_diff1++;
}
-
- if(heapinfo1[i].busy_frag.first != heapinfo2[i].busy_frag.first){
- fprintf(stderr,"Different first free fragment in fragmented block %zu : %zu - %zu\n", i, heapinfo1[i].busy_frag.first, heapinfo2[i].busy_frag.first); fflush(NULL);
- errors++;
+ }
+ }
+ if(heapinfo1[i].type > 0){
+ frag_size = pow(2, heapinfo1[i].type);
+ for(j=0; j < BLOCKSIZE/frag_size; j++){
+ if(heapinfo1[i].busy_frag.frag_size[j] > 0){
+ if(heapinfo1[i].busy_frag.equal_to[j] == -1){
+ addr_block1 = ((void*) (((ADDR2UINT((size_t)i)) - 1) * BLOCKSIZE + (char*)heapbase1));
+ addr_frag1 = (char *)addr_block1 + (j * frag_size);
+ fprintf(stderr, "Block %d, Fragment %d (%p) not found (size used = %d)\n", i, j, addr_frag1, heapinfo1[i].busy_frag.frag_size[j]);
+ mmalloc_backtrace_fragment_display(heapinfo1, i, j);
+ nb_diff1++;
+ }
}
+ }
+ }
+
+ i++;
+ }
- frag_size = pow(2, heapinfo1[i].type);
-
- for(j=0; j< (BLOCKSIZE/frag_size); j++){
-
- if(heapinfo1[i].busy_frag.frag_size[j] != heapinfo2[i].busy_frag.frag_size[j]){
- fprintf(stderr,"Different busy_size for fragment %zu in block %zu : %hu - %hu\n", j, i, heapinfo1[i].busy_frag.frag_size[j], heapinfo2[i].busy_frag.frag_size[j]); fflush(NULL);
- errors++;
- }
+ fprintf(stderr, "Different blocks or fragments in heap1 : %d\n", nb_diff1);
- if(heapinfo1[i].busy_frag.frag_size[j] > 0){
+ i = 1;
- addr_frag1 = (char *)addr_block1 + (j * frag_size);
+ while(i<=heaplimit){
+ if(heapinfo2[i].type == 0){
+ if(heapinfo2[i].busy_block.busy_size > 0){
+ if(heapinfo2[i].busy_block.equal_to == -1){
+ addr_block2 = ((void*) (((ADDR2UINT((size_t)i)) - 1) * BLOCKSIZE + (char*)heapbase2));
+ fprintf(stderr, "Block %d (%p) not found (size used = %zu)\n", i, addr_block2, heapinfo2[i].busy_block.busy_size);
+ mmalloc_backtrace_block_display(heapinfo2, i);
+ nb_diff2++;
+ }
+ }
+ }
+ if(heapinfo2[i].type > 0){
+ frag_size = pow(2, heapinfo2[i].type);
+ for(j=0; j < BLOCKSIZE/frag_size; j++){
+ if(heapinfo2[i].busy_frag.frag_size[j] > 0){
+ if(heapinfo2[i].busy_frag.equal_to[j] == -1){
+ addr_block2 = ((void*) (((ADDR2UINT((size_t)i)) - 1) * BLOCKSIZE + (char*)heapbase2));
addr_frag2 = (char *)addr_block2 + (j * frag_size);
-
- /* Hamming distance on different blocks */
- distance = 0;
-
- for(k=0;k<heapinfo1[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));
-
- fprintf(stderr, "Addresses pointed : %p - %p \n", address_pointed1, address_pointed2);
-
-
- 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((char *) address_pointed1 < (char*)((struct mdesc*)s_heap)->heapbase || block_pointed1 > heapsize1 || block_pointed1 < 1 || (char *) address_pointed2 < (char*)((struct mdesc*)s_heap)->heapbase || block_pointed2 > heapsize2 || block_pointed2 < 1) {
- fprintf(stderr, "Unknown pointer(s) ! \n");
- fflush(NULL);
- distance++;
- continue;
- }
-
- addr_block_pointed1 = ((void*) (((ADDR2UINT((size_t)block_pointed1)) - 1) * BLOCKSIZE + (char*)heapbase1));
- addr_block_pointed2 = ((void*) (((ADDR2UINT((size_t)block_pointed2)) - 1) * BLOCKSIZE + (char*)heapbase2));
-
- fprintf(stderr, "Addr block pointed : %p - %p\n", addr_block_pointed1, addr_block_pointed2);
-
- if(heapinfo1[block_pointed1].type == heapinfo2[block_pointed2].type){
-
- if(heapinfo1[block_pointed1].type == 0){ // Large block
-
- if(heapinfo1[block_pointed1].busy_block.busy_size == heapinfo2[block_pointed2].busy_block.busy_size){
-
- if(memcmp(addr_block_pointed1, addr_block_pointed2, heapinfo1[block_pointed1].busy_block.busy_size) != 0){
- distance++;
- }else{
- fprintf(stderr, "False difference detected\n");
- }
-
- }else{
- distance++;
- }
-
- }else{ // Fragmented block
-
- frag_pointed1 = ((uintptr_t) (ADDR2UINT (address_pointed1) % (BLOCKSIZE))) >> ((struct mdesc*)s_heap)->heapinfo[block_pointed1].type;
- frag_pointed2 = ((uintptr_t) (ADDR2UINT (address_pointed2) % (BLOCKSIZE))) >> ((struct mdesc*)s_heap)->heapinfo[block_pointed2].type;
-
- fprintf(stderr, "Fragments pointed : %d - %d\n", frag_pointed1, frag_pointed2);
-
- addr_frag_pointed1 = (char*)addr_block_pointed1 + (frag_pointed1 * (int)pow(2, heapinfo1[block_pointed1].type));
- addr_frag_pointed2 = (char*)addr_block_pointed2 + (frag_pointed2 * (int)pow(2, heapinfo2[block_pointed2].type));
-
- fprintf(stderr, "Addr frag pointed : %p - %p\n", addr_frag_pointed1, addr_frag_pointed2);
-
- fprintf(stderr, "Size used in fragments pointed : %d - %d\n", heapinfo1[block_pointed1].busy_frag.frag_size[frag_pointed1], heapinfo2[block_pointed2].busy_frag.frag_size[frag_pointed2]);
-
- if(heapinfo1[block_pointed1].busy_frag.frag_size[frag_pointed1] == heapinfo2[block_pointed2].busy_frag.frag_size[frag_pointed2]){
-
- if(memcmp(addr_frag_pointed1, addr_frag_pointed2, heapinfo1[block_pointed1].busy_frag.frag_size[frag_pointed1]) != 0){
- distance++;
- }else{
- fprintf(stderr, "False difference detected\n");
- }
-
- }else{
- distance ++;
- }
- }
-
- }else{
-
- if(((heapinfo1[block_pointed1].type == 0) && (heapinfo2[block_pointed2].type != 0)) || ((heapinfo1[block_pointed1].type != 0) && (heapinfo2[block_pointed2].type == 0))){
- fprintf(stderr, "Pointers on blocks with different types \n");
- distance++;
- }else{
-
- frag_pointed1 = ((uintptr_t) (ADDR2UINT (address_pointed1) % (BLOCKSIZE))) >> ((struct mdesc*)s_heap)->heapinfo[block_pointed1].type;
- frag_pointed2 = ((uintptr_t) (ADDR2UINT (address_pointed2) % (BLOCKSIZE))) >> ((struct mdesc*)s_heap)->heapinfo[block_pointed2].type;
-
- fprintf(stderr, "Fragments pointed : %d - %d\n", frag_pointed1, frag_pointed2);
-
- addr_frag_pointed1 = (char*)addr_block_pointed1 + (frag_pointed1 * (int)pow(2, heapinfo1[block_pointed1].type));
- addr_frag_pointed2 = (char*)addr_block_pointed2 + (frag_pointed2 * (int)pow(2, heapinfo2[block_pointed2].type));
-
- fprintf(stderr, "Addr frag pointed : %p - %p\n", addr_frag_pointed1, addr_frag_pointed2);
-
- fprintf(stderr, "Size used in fragments pointed : %d - %d\n", heapinfo1[block_pointed1].busy_frag.frag_size[frag_pointed1], heapinfo2[block_pointed2].busy_frag.frag_size[frag_pointed2]);
-
- if(heapinfo1[block_pointed1].busy_frag.frag_size[frag_pointed1] == heapinfo2[block_pointed2].busy_frag.frag_size[frag_pointed2]){
-
- if(memcmp(addr_frag_pointed1, addr_frag_pointed2, heapinfo1[block_pointed1].busy_frag.frag_size[frag_pointed1]) != 0){
- distance++;
- }else{
- fprintf(stderr, "False difference detected\n");
- }
-
- }else{
- distance ++;
- }
- }
-
- }
- }
-
- }
-
- if(distance > 0){
- fprintf(stderr,"\nDifferent data in fragment %zu (size = %zu, size used = %hu) in block %zu \n", j, frag_size, heapinfo1[i].busy_frag.frag_size[j], i);
- fprintf(stderr, "Hamming distance between fragments : %d\n", distance);
- mmalloc_backtrace_fragment_display(heapinfo1, i, j);
- mmalloc_backtrace_fragment_display(heapinfo2, i, j);
- fprintf(stderr, "\n");
- errors++;
- total_distance += distance;
-
- }
-
+ fprintf(stderr, "Block %d, Fragment %d (%p) not found (size used = %d)\n", i, j, addr_frag2, heapinfo2[i].busy_frag.frag_size[j]);
+ mmalloc_backtrace_fragment_display(heapinfo2, i, j);
+ nb_diff2++;
}
}
+ }
+ }
+ i++;
+ }
- i++;
+ fprintf(stderr, "Different blocks or fragments in heap2 : %d\n", nb_diff2);
+
+
+ /* Reset equal information */
+ i = 1;
- }else{ /* free block */
+ while(i<=heaplimit){
+ if(heapinfo1[i].type == 0){
+ heapinfo1[i].busy_block.equal_to = -1;
+ }
+ if(heapinfo1[i].type > 0){
+ for(j=0; j < MAX_FRAGMENT_PER_BLOCK; j++){
+ heapinfo1[i].busy_frag.equal_to[j] = -1;
+ }
+ }
+ i++;
+ }
- i++;
+ i = 1;
+ while(i<=heaplimit){
+ if(heapinfo2[i].type == 0){
+ heapinfo2[i].busy_block.equal_to = -1;
+ }
+ if(heapinfo2[i].type > 0){
+ for(j=0; j < MAX_FRAGMENT_PER_BLOCK; j++){
+ heapinfo2[i].busy_frag.equal_to[j] = -1;
}
-
}
-
+ i++;
}
+ xbt_dynar_free(&previous);
+ addr_block1 = NULL, addr_block2 = NULL, addr_frag1 = NULL, addr_frag2 = NULL;
+ s_heap = NULL, heapbase1 = NULL, heapbase2 = NULL;
- fprintf(stderr, "Hamming distance between heap regions : %d\n", total_distance);
+ return (nb_diff1 > 0 || nb_diff2 > 0);
- return (errors);
}
-int compare_area(void *area1, void* area2, size_t size){
+static int compare_area(void *area1, void* area2, size_t size, xbt_dynar_t previous){
- int distance = 0;
- int i, pointer_align;
- void *address_pointed1 = NULL, *address_pointed2 = NULL;
+ int i = 0, pointer_align;
+ void *address_pointed1 = NULL, *address_pointed2 = NULL, *addr_block1 = NULL, *addr_block2 = NULL, *addr_frag1 = NULL, *addr_frag2 = NULL;
int block_pointed1, block_pointed2, frag_pointed1, frag_pointed2;
- void *addr_block_pointed1 = NULL, *addr_block_pointed2 = NULL, *addr_frag_pointed1 = NULL, *addr_frag_pointed2 = NULL;
+ int frag_size;
+ int res_compare;
- for(i=0; i<size; i++){
+ while(i<size){
if(memcmp(((char *)area1) + i, ((char *)area2) + i, 1) != 0){
pointer_align = (i / sizeof(void*)) * sizeof(void*);
address_pointed1 = *((void **)((char *)area1 + pointer_align));
address_pointed2 = *((void **)((char *)area2 + pointer_align));
-
+
/* Get pointed blocks number */
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;
-
- /* Check if valid blocks number */
- if((char *)address_pointed1 < (char*)((struct mdesc*)s_heap)->heapbase || block_pointed1 > heapsize1 || block_pointed1 < 1 || (char *)address_pointed2 < (char*)((struct mdesc*)s_heap)->heapbase || block_pointed2 > heapsize2 || block_pointed2 < 1) {
- fprintf(stderr, "Unknown pointer(s) ! \n");
- fflush(NULL);
- distance++;
- continue;
- }
- /* Get address of pointed block in saved heaps */
- addr_block_pointed1 = ((void*) (((ADDR2UINT((size_t)block_pointed1)) - 1) * BLOCKSIZE + (char*)heapbase1));
- addr_block_pointed2 = ((void*) (((ADDR2UINT((size_t)block_pointed2)) - 1) * BLOCKSIZE + (char*)heapbase2));
+ /* Check if valid blocks number */
+ if((char *)address_pointed1 < (char*)((struct mdesc*)s_heap)->heapbase || block_pointed1 > heapsize1 || block_pointed1 < 1 || (char *)address_pointed2 < (char*)((struct mdesc*)s_heap)->heapbase || block_pointed2 > heapsize2 || block_pointed2 < 1)
+ return 1;
if(heapinfo1[block_pointed1].type == heapinfo2[block_pointed2].type){ /* Same type of block (large or fragmented) */
+ addr_block1 = ((void*) (((ADDR2UINT((size_t)block_pointed1)) - 1) * BLOCKSIZE + (char*)heapbase1));
+ addr_block2 = ((void*) (((ADDR2UINT((size_t)block_pointed2)) - 1) * BLOCKSIZE + (char*)heapbase2));
+
if(heapinfo1[block_pointed1].type == 0){ /* Large block */
-
- if(heapinfo1[block_pointed1].busy_block.busy_size == heapinfo2[block_pointed2].busy_block.busy_size){
-
- if(compare_area(addr_block_pointed1, addr_block_pointed2, heapinfo1[block_pointed1].busy_block.busy_size) != 0){
- /* FIXME : Check temp list of differences */
- distance++;
- }else{
- fprintf(stderr, "False difference detected\n");
- }
-
- }else{
- /* FIXME : Add blocks in temp list of differences */
- distance++;
+
+ if(heapinfo1[block_pointed1].busy_block.size != heapinfo2[block_pointed2].busy_block.size){
+ return 1;
}
-
- }else{ /* Fragmented block */
- /* Get pointed fragments number */
- frag_pointed1 = ((uintptr_t) (ADDR2UINT (address_pointed1) % (BLOCKSIZE))) >> ((struct mdesc*)s_heap)->heapinfo[block_pointed1].type;
- frag_pointed2 = ((uintptr_t) (ADDR2UINT (address_pointed2) % (BLOCKSIZE))) >> ((struct mdesc*)s_heap)->heapinfo[block_pointed2].type;
-
- /* Get address of pointed fragments in saved heaps */
- addr_frag_pointed1 = (char*)addr_block_pointed1 + (frag_pointed1 * (int)pow(2, heapinfo1[block_pointed1].type));
- addr_frag_pointed2 = (char*)addr_block_pointed2 + (frag_pointed2 * (int)pow(2, heapinfo2[block_pointed2].type));
-
- if(heapinfo1[block_pointed1].busy_frag.frag_size[frag_pointed1] == heapinfo2[block_pointed2].busy_frag.frag_size[frag_pointed2]){
+ if(heapinfo1[block_pointed1].busy_block.busy_size != heapinfo2[block_pointed2].busy_block.busy_size){
+ return 1;
+ }
+
+ if(add_heap_area_pair(previous, block_pointed1, -1, block_pointed2, -1)){
- if(compare_area(addr_frag_pointed1, addr_frag_pointed2, heapinfo1[block_pointed1].busy_frag.frag_size[frag_pointed1]) != 0){
- /* FIXME : Check in temp list of differences */
- distance++;
- }else{
- fprintf(stderr, "False difference detected\n");
- }
+ res_compare = compare_area(addr_block1, addr_block2, heapinfo1[block_pointed1].busy_block.busy_size, previous);
- }else{
- /* FIXME : Check in temp list of differences */
- distance ++;
+ if(res_compare)
+ return 1;
+
}
- }
-
- }else{ /* Can be fragmented block with different fragments size but same size_used */
+ }else{ /* Fragmented block */
- if(((heapinfo1[block_pointed1].type == 0) && (heapinfo2[block_pointed2].type != 0)) || ((heapinfo1[block_pointed1].type != 0) && (heapinfo2[block_pointed2].type == 0))){
-
- fprintf(stderr, "Pointers on blocks with different types \n");
- distance++;
-
- }else{
-
/* Get pointed fragments number */
- frag_pointed1 = ((uintptr_t) (ADDR2UINT (address_pointed1) % (BLOCKSIZE))) >> ((struct mdesc*)s_heap)->heapinfo[block_pointed1].type;
- frag_pointed2 = ((uintptr_t) (ADDR2UINT (address_pointed2) % (BLOCKSIZE))) >> ((struct mdesc*)s_heap)->heapinfo[block_pointed2].type;
-
- /* Get address of pointed fragments in saved heaps */
- addr_frag_pointed1 = (char*)addr_block_pointed1 + (frag_pointed1 * (int)pow(2, heapinfo1[block_pointed1].type));
- addr_frag_pointed2 = (char*)addr_block_pointed2 + (frag_pointed2 * (int)pow(2, heapinfo2[block_pointed2].type));
-
- if(heapinfo1[block_pointed1].busy_frag.frag_size[frag_pointed1] == heapinfo2[block_pointed2].busy_frag.frag_size[frag_pointed2]){
+ frag_pointed1 = ((uintptr_t) (ADDR2UINT (address_pointed1) % (BLOCKSIZE))) >> heapinfo1[block_pointed1].type;
+ frag_pointed2 = ((uintptr_t) (ADDR2UINT (address_pointed2) % (BLOCKSIZE))) >> heapinfo2[block_pointed2].type;
+
+ if(heapinfo1[block_pointed1].busy_frag.frag_size[frag_pointed1] != heapinfo2[block_pointed2].busy_frag.frag_size[frag_pointed2]) /* Different size_used */
+ return 1;
+
+ frag_size = pow(2, heapinfo1[block_pointed1].type);
- if(compare_area(addr_frag_pointed1, addr_frag_pointed2, heapinfo1[block_pointed1].busy_frag.frag_size[frag_pointed1]) != 0){
- /* FIXME : Check temp list of differences */
- distance++;
- }else{
- fprintf(stderr, "False difference detected\n");
- }
+ addr_frag1 = (char *)addr_block1 + (frag_pointed1 * frag_size);
+ addr_frag2 = (char *)addr_block2 + (frag_pointed2 * frag_size);
+
+ if(add_heap_area_pair(previous, block_pointed1, frag_pointed1, block_pointed2, frag_pointed2)){
+
+ res_compare = compare_area(addr_frag1, addr_frag2, heapinfo1[block_pointed1].busy_frag.frag_size[frag_pointed1], previous);
- }else{
- /* FIXME : Check list of differences */
- distance ++;
+ if(res_compare)
+ return 1;
+
}
}
-
+
}
- }
- }
- return distance;
+ i = pointer_align + sizeof(void *);
+
+ }else{
-}
+ i++;
+ }
+ }
-/* void *get_end_addr_heap(void *heap){ */
+ address_pointed1 = NULL, address_pointed2 = NULL, addr_block1 = NULL, addr_block2 = NULL, addr_frag1 = NULL, addr_frag2 = NULL;
-/* FILE *fp; /\* File pointer to process's proc maps file *\/ */
-/* char *line = NULL; /\* Temporal storage for each line that is readed *\/ */
-/* ssize_t read; /\* Number of bytes readed *\/ */
-/* size_t n = 0; /\* Amount of bytes to read by getline *\/ */
+ return 0;
+
-/* fp = fopen("/proc/self/maps", "r"); */
+}
-/* if(fp == NULL) */
-/* perror("fopen failed"); */
+static void heap_area_pair_free(heap_area_pair_t pair){
+ if (pair){
+ free(pair);
+ pair = NULL;
+ }
+}
+static void heap_area_pair_free_voidp(void *d)
+{
+ heap_area_pair_free((heap_area_pair_t) * (void **) d);
+}
-/* xbt_dynar_t lfields = NULL; */
-/* xbt_dynar_t start_end = NULL; */
-/* void *start_addr; */
-/* void *end_addr; */
+static int add_heap_area_pair(xbt_dynar_t list, int block1, int fragment1, int block2, int fragment2){
-/* while ((read = getline(&line, &n, fp)) != -1) { */
+ if(is_new_heap_area_pair(list, block1, fragment1, block2, fragment2)){
+ heap_area_pair_t pair = NULL;
+ pair = xbt_new0(s_heap_area_pair_t, 1);
+ pair->block1 = block1;
+ pair->fragment1 = fragment1;
+ pair->block2 = block2;
+ pair->fragment2 = fragment2;
+
+ xbt_dynar_push(list, &pair);
-/* xbt_str_trim(line, NULL); */
-/* xbt_str_strip_spaces(line); */
-/* lfields = xbt_str_split(line,NULL); */
+ return 1;
+ }
-/* start_end = xbt_str_split(xbt_dynar_get_as(lfields, 0, char*), "-"); */
-/* start_addr = (void *) strtoul(xbt_dynar_get_as(start_end, 0, char*), NULL, 16); */
-/* end_addr = (void *) strtoul(xbt_dynar_get_as(start_end, 1, char*), NULL, 16); */
+ return 0;
+}
+
+static int is_new_heap_area_pair(xbt_dynar_t list, int block1, int fragment1, int block2, int fragment2){
+
+ unsigned int cursor = 0;
+ heap_area_pair_t current_pair = NULL;
-/* if(start_addr == heap){ */
-/* free(line); */
-/* fclose(fp); */
-/* xbt_dynar_reset(lfields); */
-/* xbt_free(lfields); */
-/* xbt_dynar_reset(start_end); */
-/* xbt_free(start_end); */
-/* return end_addr; */
-/* } */
+ xbt_dynar_foreach(list, cursor, current_pair){
+ if(current_pair->block1 == block1 && current_pair->block2 == block2 && current_pair->fragment1 == fragment1 && current_pair->fragment2 == fragment2)
+ return 0;
+ }
-/* } */
+ current_pair = NULL;
+
+ return 1;
+}
-/* xbt_dynar_reset(lfields); */
-/* xbt_free(lfields); */
-/* xbt_dynar_reset(start_end); */
-/* xbt_free(start_end); */
-/* free(line); */
-/* fclose(fp); */
-/* return NULL; */
+static void match_equals(xbt_dynar_t list){
+ unsigned int cursor = 0;
+ heap_area_pair_t current_pair = NULL;
-/* } */
+ xbt_dynar_foreach(list, cursor, current_pair){
+ if(current_pair->fragment1 != -1){
+ heapinfo1[current_pair->block1].busy_frag.equal_to[current_pair->fragment1] = 1;
+ heapinfo2[current_pair->block2].busy_frag.equal_to[current_pair->fragment2] = 1;
+ }else{
+ heapinfo1[current_pair->block1].busy_block.equal_to = 1;
+ heapinfo2[current_pair->block2].busy_block.equal_to = 1;
+ }
+ }
+ current_pair = NULL;
+}
