1 /* mm_diff - Memory snapshooting and comparison */
3 /* Copyright (c) 2008-2012. The SimGrid Team. All rights reserved. */
5 /* This program is free software; you can redistribute it and/or modify it
6 * under the terms of the license (GNU LGPL) which comes with this package. */
8 #include "xbt/ex_interface.h" /* internals of backtrace setup */
12 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mm_diff, xbt,
13 "Logging specific to mm_diff in mmalloc");
15 extern char *xbt_binary_name;
17 void mmalloc_backtrace_display(xbt_mheap_t mdp, void *ptr){
18 size_t block = BLOCK(ptr);
22 if ((char *) ptr < (char *) mdp->heapbase || block > mdp->heapsize) {
23 fprintf(stderr,"Ouch, this pointer is not mine. I cannot display its backtrace. I refuse it to death!!\n");
27 type = mdp->heapinfo[block].type;
30 //fprintf(stderr,"Only full blocks are backtraced for now. Ignoring your request.\n");
33 if (mdp->heapinfo[block].busy_block.bt_size == 0) {
34 fprintf(stderr,"No backtrace available for that block, sorry.\n");
38 memcpy(&e.bt,&(mdp->heapinfo[block].busy_block.bt),sizeof(void*)*XBT_BACKTRACE_SIZE);
39 e.used = mdp->heapinfo[block].busy_block.bt_size;
41 xbt_ex_setup_backtrace(&e);
43 fprintf(stderr, "(backtrace not set)\n");
44 } else if (e.bt_strings == NULL) {
45 fprintf(stderr, "(backtrace not ready to be computed. %s)\n",xbt_binary_name?"Dunno why":"xbt_binary_name not setup yet");
49 fprintf(stderr, "Backtrace of where the block %p was malloced (%d frames):\n",ptr,e.used);
50 for (i = 0; i < e.used; i++) /* no need to display "xbt_backtrace_display" */{
51 fprintf(stderr,"%d",i);fflush(NULL);
52 fprintf(stderr, "---> %s\n", e.bt_strings[i] + 4);
58 void mmalloc_backtrace_block_display(xbt_mheap_t mdp, size_t block){
63 type = mdp->heapinfo[block].type;
66 fprintf(stderr,"Only full blocks are backtraced for now. Ignoring your request.\n");
69 if (mdp->heapinfo[block].busy_block.bt_size == 0) {
70 fprintf(stderr,"No backtrace available for that block, sorry.\n");
74 memcpy(&e.bt,&(mdp->heapinfo[block].busy_block.bt),sizeof(void*)*XBT_BACKTRACE_SIZE);
75 e.used = mdp->heapinfo[block].busy_block.bt_size;
77 xbt_ex_setup_backtrace(&e);
79 fprintf(stderr, "(backtrace not set)\n");
80 } else if (e.bt_strings == NULL) {
81 fprintf(stderr, "(backtrace not ready to be computed. %s)\n",xbt_binary_name?"Dunno why":"xbt_binary_name not setup yet");
85 fprintf(stderr, "Backtrace of where the block %zu was malloced (%d frames):\n", block ,e.used);
86 for (i = 0; i < e.used; i++) /* no need to display "xbt_backtrace_display" */{
87 fprintf(stderr,"%d",i);fflush(NULL);
88 fprintf(stderr, "---> %s\n", e.bt_strings[i] + 4);
93 void mmalloc_backtrace_fragment_display(xbt_mheap_t mdp, size_t block, size_t frag){
97 memcpy(&e.bt,&(mdp->heapinfo[block].busy_frag.bt[frag]),sizeof(void*)*XBT_BACKTRACE_SIZE);
98 e.used = XBT_BACKTRACE_SIZE;
100 xbt_ex_setup_backtrace(&e);
102 fprintf(stderr, "(backtrace not set)\n");
103 } else if (e.bt_strings == NULL) {
104 fprintf(stderr, "(backtrace not ready to be computed. %s)\n",xbt_binary_name?"Dunno why":"xbt_binary_name not setup yet");
108 fprintf(stderr, "Backtrace of where the fragment %zu in block %zu was malloced (%d frames):\n", frag, block ,e.used);
109 for (i = 0; i < e.used; i++) /* no need to display "xbt_backtrace_display" */{
110 fprintf(stderr,"%d",i);fflush(NULL);
111 fprintf(stderr, "---> %s\n", e.bt_strings[i] + 4);
116 int mmalloc_compare_heap(xbt_mheap_t mdp1, xbt_mheap_t mdp2){
118 if(mdp1 == NULL && mdp2 == NULL){
119 fprintf(stderr, "Malloc descriptors null\n");
123 int errors = mmalloc_compare_mdesc(mdp1, mdp2);
129 int mmalloc_compare_mdesc(struct mdesc *mdp1, struct mdesc *mdp2){
133 if(mdp1->heaplimit != mdp2->heaplimit){
134 fprintf(stderr,"Different limit of valid info table indices\n");
138 void* s_heap = (char *)mmalloc_get_current_heap() - STD_HEAP_SIZE - getpagesize();
140 void *heapbase1 = (char *)mdp1 + BLOCKSIZE;
141 void *heapbase2 = (char *)mdp2 + BLOCKSIZE;
144 void *addr_block1, *addr_block2, *addr_frag1, *addr_frag2;
151 int total_distance = 0;
154 void *address_pointed1, *address_pointed2;
156 int block_pointed1, block_pointed2, frag_pointed1, frag_pointed2;
157 void *addr_block_pointed1, *addr_block_pointed2, *addr_frag_pointed1, *addr_frag_pointed2;
159 /* Check busy blocks*/
161 while(i < mdp1->heaplimit){
163 if(mdp1->heapinfo[i].type != mdp2->heapinfo[i].type){
164 fprintf(stderr,"Different type of block : %d - %d\n", mdp1->heapinfo[i].type, mdp2->heapinfo[i].type);
168 /* Get address of block i in each heap */
169 addr_block1 = ((void*) (((ADDR2UINT(i)) - 1) * BLOCKSIZE + (char*)heapbase1));
170 addr_block2 = ((void*) (((ADDR2UINT(i)) - 1) * BLOCKSIZE + (char*)heapbase2));
172 if(mdp1->heapinfo[i].type == 0){ /* busy large block */
174 if(mdp1->heapinfo[i].busy_block.size != mdp2->heapinfo[i].busy_block.size){
175 fprintf(stderr,"Different size of a large cluster : %zu - %zu\n", mdp1->heapinfo[i].busy_block.size, mdp2->heapinfo[i].busy_block.size);
180 if(mdp1->heapinfo[i].busy_block.busy_size != mdp2->heapinfo[i].busy_block.busy_size){
181 fprintf(stderr,"Different busy_size of a large cluster : %zu - %zu\n", mdp1->heapinfo[i].busy_block.busy_size, mdp2->heapinfo[i].busy_block.busy_size);
186 /* Hamming distance on different blocks */
190 for(k=0;k<mdp1->heapinfo[i].busy_block.busy_size;k++){
192 if(memcmp(((char *)addr_block1) + k, ((char *)addr_block2) + k, 1) != 0){
194 fprintf(stderr, "Different byte (offset=%d) (%p - %p) in block %zu\n", k, (char *)addr_block1 + k, (char *)addr_block2 + k, i); fflush(NULL);
196 /* Check if pointer difference */
197 pointer_align = (k >> sizeof(void*)) * sizeof(void*);
198 address_pointed1 = *((void **)((char *)addr_block1 + pointer_align));
199 address_pointed2 = *((void **)((char *)addr_block2 + pointer_align));
201 fprintf(stderr, "Addresses pointed : %p - %p\n", address_pointed1, address_pointed2);
203 block_pointed1 = ((char*)address_pointed1 - (char*)((struct mdesc*)s_heap)->heapbase) / BLOCKSIZE + 1;
204 block_pointed2 = ((char*)address_pointed2 - (char*)((struct mdesc*)s_heap)->heapbase) / BLOCKSIZE + 1;
206 fprintf(stderr, "Blocks pointed : %d - %d\n", block_pointed1, block_pointed2);
208 if((char *) address_pointed1 < (char*)((struct mdesc*)s_heap)->heapbase || block_pointed1 > mdp1->heapsize || block_pointed1 < 1 || (char *) address_pointed2 < (char*)((struct mdesc*)s_heap)->heapbase || block_pointed2 > mdp2->heapsize || block_pointed2 < 1) {
209 fprintf(stderr, "Unknown pointer(s) ! \n");
215 /*if(((char *) address_pointed1 > (char*)((struct mdesc*)s_heap)->heapbase) && (block_pointed1 < mdp1->heapsize) && (block_pointed1 >= 1)){
216 addr_block_pointed1 = ((void*) (((ADDR2UINT((size_t)block_pointed1)) - 1) * BLOCKSIZE + (char*)heapbase1));
217 if(((char *) address_pointed2 > (char*)((struct mdesc*)s_heap)->heapbase) && (block_pointed2 < mdp2->heapsize) && (block_pointed2 >= 1)){
218 addr_block_pointed2 = ((void*) (((ADDR2UINT((size_t)block_pointed2)) - 1) * BLOCKSIZE + (char*)heapbase2));
220 addr_block_pointed2 = addr_block2;
224 addr_block_pointed1 = addr_block1;
226 if(((char *) address_pointed2 > (char*)((struct mdesc*)s_heap)->heapbase) && (block_pointed2 < mdp2->heapsize) && (block_pointed2 >= 1)){
227 addr_block_pointed2 = ((void*) (((ADDR2UINT((size_t)block_pointed2)) - 1) * BLOCKSIZE + (char*)heapbase2));
229 fprintf(stderr, "Unknown pointers ! \n");
236 addr_block_pointed1 = ((void*) (((ADDR2UINT((size_t)block_pointed1)) - 1) * BLOCKSIZE + (char*)heapbase1));
237 addr_block_pointed2 = ((void*) (((ADDR2UINT((size_t)block_pointed2)) - 1) * BLOCKSIZE + (char*)heapbase2));
239 if(mdp1->heapinfo[block_pointed1].type == mdp2->heapinfo[block_pointed2].type){
241 if(mdp1->heapinfo[block_pointed1].type == 0){ // Large block
243 if(mdp1->heapinfo[block_pointed1].busy_block.busy_size == mdp2->heapinfo[block_pointed2].busy_block.busy_size){
245 if(memcmp(addr_block_pointed1, addr_block_pointed2, mdp1->heapinfo[block_pointed1].busy_block.busy_size) != 0){
248 fprintf(stderr, "False difference detected\n");
255 }else{ // Fragmented block
258 frag_pointed1 = ((uintptr_t) (ADDR2UINT (address_pointed1) % (BLOCKSIZE))) >> mdp1->heapinfo[block_pointed1].type;
259 frag_pointed2 = ((uintptr_t) (ADDR2UINT (address_pointed2) % (BLOCKSIZE))) >> mdp2->heapinfo[block_pointed2].type;
261 fprintf(stderr, "Fragments pointed : %d - %d\n", frag_pointed1, frag_pointed2);
263 if((frag_pointed1 < 0) || (frag_pointed1 > (BLOCKSIZE / pow( 2, mdp1->heapinfo[block_pointed1].type))) || (frag_pointed2 < 0) || (frag_pointed2 > (BLOCKSIZE / pow( 2, mdp2->heapinfo[block_pointed2].type)))){
264 fprintf(stderr, "Unknown pointer(s) ! \n");
270 fprintf(stderr, "Size used in fragments pointed : %d - %d\n", mdp1->heapinfo[block_pointed1].busy_frag.frag_size[frag_pointed1], mdp2->heapinfo[block_pointed2].busy_frag.frag_size[frag_pointed2]);
272 if(mdp1->heapinfo[block_pointed1].busy_frag.frag_size[frag_pointed1] == mdp2->heapinfo[block_pointed2].busy_frag.frag_size[frag_pointed2]){
274 addr_frag_pointed1 = (char *)addr_block_pointed1 + (frag_pointed1 * (int)pow(2, mdp1->heapinfo[block_pointed1].type));
275 addr_frag_pointed2 = (char *)addr_block_pointed2 + (frag_pointed2 * (int)pow(2, mdp2->heapinfo[block_pointed2].type));
277 if(memcmp(addr_frag_pointed1, addr_frag_pointed2, mdp1->heapinfo[block_pointed1].busy_frag.frag_size[frag_pointed1]) != 0){
280 fprintf(stderr, "False difference detected\n");
290 if(((mdp1->heapinfo[block_pointed1].type == 0) && (mdp2->heapinfo[block_pointed2].type != 0)) || ((mdp1->heapinfo[block_pointed1].type != 0) && (mdp2->heapinfo[block_pointed2].type == 0))){
291 fprintf(stderr, "Pointers on blocks with different types \n");
295 frag_pointed1 = ((uintptr_t) (ADDR2UINT (address_pointed1) % (BLOCKSIZE))) >> mdp1->heapinfo[block_pointed1].type;
296 frag_pointed2 = ((uintptr_t) (ADDR2UINT (address_pointed2) % (BLOCKSIZE))) >> mdp2->heapinfo[block_pointed2].type;
298 fprintf(stderr, "Fragments pointed : %d - %d\n", frag_pointed1, frag_pointed2);
300 if((frag_pointed1 < 0) || (frag_pointed1 > (BLOCKSIZE / pow( 2, mdp1->heapinfo[block_pointed1].type))) || (frag_pointed2 < 0) || (frag_pointed2 > (BLOCKSIZE / pow( 2, mdp2->heapinfo[block_pointed2].type)))){
301 fprintf(stderr, "Unknown pointer(s) ! \n");
307 fprintf(stderr, "Size used in fragments pointed : %d - %d\n", mdp1->heapinfo[block_pointed1].busy_frag.frag_size[frag_pointed1], mdp2->heapinfo[block_pointed2].busy_frag.frag_size[frag_pointed2]);
309 if(mdp1->heapinfo[block_pointed1].busy_frag.frag_size[frag_pointed1] == mdp2->heapinfo[block_pointed2].busy_frag.frag_size[frag_pointed2]){
311 addr_frag_pointed1 = (char *)addr_block_pointed1 + (frag_pointed1 * (int)pow(2, mdp1->heapinfo[block_pointed1].type));
312 addr_frag_pointed2 = (char *)addr_block_pointed2 + (frag_pointed2 * (int)pow(2, mdp2->heapinfo[block_pointed2].type));
314 if(memcmp(addr_frag_pointed1, addr_frag_pointed2, mdp1->heapinfo[block_pointed1].busy_frag.frag_size[frag_pointed1]) != 0){
317 fprintf(stderr, "False difference detected\n");
331 fprintf(stderr,"\nDifferent data in large block %zu (size = %zu (in blocks), busy_size = %zu (in bytes))\n", i, mdp1->heapinfo[i].busy_block.size, mdp1->heapinfo[i].busy_block.busy_size);
333 fprintf(stderr, "Hamming distance between blocks : %d\n", distance);
334 mmalloc_backtrace_block_display(mdp1, i);
335 mmalloc_backtrace_block_display(mdp2, i);
336 fprintf(stderr, "\n");
338 total_distance += distance;
345 if(mdp1->heapinfo[i].type > 0){ /* busy fragmented block */
347 if(mdp1->heapinfo[i].type != mdp2->heapinfo[i].type){
348 fprintf(stderr,"Different size of fragments in fragmented block %zu : %d - %d\n", i, mdp1->heapinfo[i].type, mdp2->heapinfo[i].type); fflush(NULL);
352 if(mdp1->heapinfo[i].busy_frag.nfree != mdp2->heapinfo[i].busy_frag.nfree){
353 fprintf(stderr,"Different free fragments in fragmented block %zu : %zu - %zu\n", i, mdp1->heapinfo[i].busy_frag.nfree, mdp2->heapinfo[i].busy_frag.nfree); fflush(NULL);
357 if(mdp1->heapinfo[i].busy_frag.first != mdp2->heapinfo[i].busy_frag.first){
358 fprintf(stderr,"Different busy_size of a large cluster : %zu - %zu\n", mdp1->heapinfo[i].busy_block.busy_size, mdp2->heapinfo[i].busy_block.busy_size); fflush(NULL);
362 frag_size = pow(2, mdp1->heapinfo[i].type);
364 for(j=0; j< (BLOCKSIZE/frag_size); j++){
366 if(mdp1->heapinfo[i].busy_frag.frag_size[j] != mdp2->heapinfo[i].busy_frag.frag_size[j]){
367 fprintf(stderr,"Different busy_size for fragment %zu in block %zu : %hu - %hu\n", j, i, mdp1->heapinfo[i].busy_frag.frag_size[j], mdp2->heapinfo[i].busy_frag.frag_size[j]); fflush(NULL);
371 if(mdp1->heapinfo[i].busy_frag.frag_size[j] > 0){
373 addr_frag1 = (char *)addr_block1 + (j * frag_size);
374 addr_frag2 = (char *)addr_block2 + (j * frag_size);
376 /* Hamming distance on different blocks */
379 for(k=0;k<mdp1->heapinfo[i].busy_frag.frag_size[j];k++){
381 if(memcmp(((char *)addr_frag1) + k, ((char *)addr_frag2) + k, 1) != 0){
383 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);
385 pointer_align = (k / sizeof(void*)) * sizeof(void*);
386 address_pointed1 = *((void **)((char *)addr_frag1 + pointer_align));
387 address_pointed2 = *((void **)((char *)addr_frag2 + pointer_align));
389 fprintf(stderr, "Addresses pointed : %p - %p\n", address_pointed1, address_pointed2);
391 block_pointed1 = ((char*)address_pointed1 - (char*)((struct mdesc*)s_heap)->heapbase) / BLOCKSIZE + 1;
392 block_pointed2 = ((char*)address_pointed2 - (char*)((struct mdesc*)s_heap)->heapbase) / BLOCKSIZE + 1;
394 fprintf(stderr, "Blocks pointed : %d - %d\n", block_pointed1, block_pointed2);
396 if((char *) address_pointed1 < (char*)((struct mdesc*)s_heap)->heapbase || block_pointed1 > mdp1->heapsize || block_pointed1 < 1 || (char *) address_pointed2 < (char*)((struct mdesc*)s_heap)->heapbase || block_pointed2 > mdp2->heapsize || block_pointed2 < 1) {
397 fprintf(stderr, "Unknown pointer ! \n");
403 /*if(((char *) address_pointed1 > (char*)((struct mdesc*)s_heap)->heapbase) && (block_pointed1 < mdp1->heapsize) && (block_pointed1 >= 1)){
404 addr_block_pointed1 = ((void*) (((ADDR2UINT((size_t)block_pointed1)) - 1) * BLOCKSIZE + (char*)heapbase1));
406 if(((char *) address_pointed2 > (char*)((struct mdesc*)s_heap)->heapbase) && (block_pointed2 < mdp2->heapsize) && (block_pointed2 >= 1)){
407 addr_block_pointed2 = ((void*) (((ADDR2UINT((size_t)block_pointed2)) - 1) * BLOCKSIZE + (char*)heapbase2));
411 addr_block_pointed2 = addr_block2;
415 addr_block_pointed1 = addr_block1;
418 if(((char *) address_pointed2 > (char*)((struct mdesc*)s_heap)->heapbase) && (block_pointed2 < mdp2->heapsize) && (block_pointed2 >= 1)){
419 addr_block_pointed2 = ((void*) (((ADDR2UINT((size_t)block_pointed2)) - 1) * BLOCKSIZE + (char*)heapbase2));
422 fprintf(stderr, "Unknown pointers ! \n");
429 addr_block_pointed1 = ((void*) (((ADDR2UINT((size_t)block_pointed1)) - 1) * BLOCKSIZE + (char*)heapbase1));
430 addr_block_pointed2 = ((void*) (((ADDR2UINT((size_t)block_pointed2)) - 1) * BLOCKSIZE + (char*)heapbase2));
432 if(mdp1->heapinfo[block_pointed1].type == mdp2->heapinfo[block_pointed2].type){
434 if(mdp1->heapinfo[block_pointed1].type == 0){ // Large block
436 if(mdp1->heapinfo[block_pointed1].busy_block.busy_size == mdp2->heapinfo[block_pointed2].busy_block.busy_size){
438 if(memcmp(addr_block_pointed1, addr_block_pointed2, mdp1->heapinfo[block_pointed1].busy_block.busy_size) != 0){
441 fprintf(stderr, "False difference detected\n");
448 }else{ // Fragmented block
451 frag_pointed1 = ((uintptr_t) (ADDR2UINT (address_pointed1) % (BLOCKSIZE))) >> mdp1->heapinfo[block_pointed1].type;
452 frag_pointed2 = ((uintptr_t) (ADDR2UINT (address_pointed2) % (BLOCKSIZE))) >> mdp2->heapinfo[block_pointed2].type;
454 fprintf(stderr, "Fragments pointed : %d - %d\n", frag_pointed1, frag_pointed2);
456 if((frag_pointed1 < 0) || (frag_pointed1 > (BLOCKSIZE / pow( 2, mdp1->heapinfo[block_pointed1].type))) || (frag_pointed2 < 0) || (frag_pointed2 > (BLOCKSIZE / pow( 2, mdp2->heapinfo[block_pointed2].type)))){
457 fprintf(stderr, "Unknown pointer ! \n");
463 fprintf(stderr, "Size used in fragments pointed : %d - %d\n", mdp1->heapinfo[block_pointed1].busy_frag.frag_size[frag_pointed1], mdp2->heapinfo[block_pointed2].busy_frag.frag_size[frag_pointed2]);
465 if(mdp1->heapinfo[block_pointed1].busy_frag.frag_size[frag_pointed1] == mdp2->heapinfo[block_pointed2].busy_frag.frag_size[frag_pointed2]){
467 addr_frag_pointed1 = (char *)addr_block_pointed1 + (frag_pointed1 * (int)pow(2, mdp1->heapinfo[block_pointed1].type));
468 addr_frag_pointed2 = (char *)addr_block_pointed2 + (frag_pointed2 * (int)pow(2, mdp2->heapinfo[block_pointed2].type));
470 if(memcmp(addr_frag_pointed1, addr_frag_pointed2, mdp1->heapinfo[block_pointed1].busy_frag.frag_size[frag_pointed1]) != 0){
473 fprintf(stderr, "False difference detected\n");
483 if(((mdp1->heapinfo[block_pointed1].type == 0) && (mdp2->heapinfo[block_pointed2].type != 0)) || ((mdp1->heapinfo[block_pointed1].type != 0) && (mdp2->heapinfo[block_pointed2].type == 0))){
484 fprintf(stderr, "Pointers on blocks with different types \n");
488 frag_pointed1 = ((uintptr_t) (ADDR2UINT (address_pointed1) % (BLOCKSIZE))) >> mdp1->heapinfo[block_pointed1].type;
489 frag_pointed2 = ((uintptr_t) (ADDR2UINT (address_pointed2) % (BLOCKSIZE))) >> mdp2->heapinfo[block_pointed2].type;
491 fprintf(stderr, "Fragments pointed : %d - %d\n", frag_pointed1, frag_pointed2);
493 if((frag_pointed1 < 0) || (frag_pointed1 > (BLOCKSIZE / pow( 2, mdp1->heapinfo[block_pointed1].type))) || (frag_pointed2 < 0) || (frag_pointed2 > (BLOCKSIZE / pow( 2, mdp2->heapinfo[block_pointed2].type)))){
494 fprintf(stderr, "Unknown pointers ! \n");
500 fprintf(stderr, "Size used in fragments pointed : %d - %d\n", mdp1->heapinfo[block_pointed1].busy_frag.frag_size[frag_pointed1], mdp2->heapinfo[block_pointed2].busy_frag.frag_size[frag_pointed2]);
502 if(mdp1->heapinfo[block_pointed1].busy_frag.frag_size[frag_pointed1] == mdp2->heapinfo[block_pointed2].busy_frag.frag_size[frag_pointed2]){
504 addr_frag_pointed1 = (char *)addr_block_pointed1 + (frag_pointed1 * (int)pow(2, mdp1->heapinfo[block_pointed1].type));
505 addr_frag_pointed2 = (char *)addr_block_pointed2 + (frag_pointed2 * (int)pow(2, mdp2->heapinfo[block_pointed2].type));
507 if(memcmp(addr_frag_pointed1, addr_frag_pointed2, mdp1->heapinfo[block_pointed1].busy_frag.frag_size[frag_pointed1]) != 0){
510 fprintf(stderr, "False difference detected\n");
524 fprintf(stderr,"\nDifferent data in fragment %zu (size = %zu, size used = %hu) in block %zu \n", j, frag_size, mdp1->heapinfo[i].busy_frag.frag_size[j], i);
525 fprintf(stderr, "Hamming distance between fragments : %d\n", distance);
526 mmalloc_backtrace_fragment_display(mdp1, i, j);
527 mmalloc_backtrace_fragment_display(mdp2, i, j);
528 fprintf(stderr, "\n");
530 total_distance += distance;
539 }else{ /* free block */
550 fprintf(stderr, "Hamming distance between heap regions : %d\n", total_distance);
556 /* void *get_end_addr_heap(void *heap){ */
558 /* FILE *fp; /\* File pointer to process's proc maps file *\/ */
559 /* char *line = NULL; /\* Temporal storage for each line that is readed *\/ */
560 /* ssize_t read; /\* Number of bytes readed *\/ */
561 /* size_t n = 0; /\* Amount of bytes to read by getline *\/ */
563 /* fp = fopen("/proc/self/maps", "r"); */
566 /* perror("fopen failed"); */
569 /* xbt_dynar_t lfields = NULL; */
570 /* xbt_dynar_t start_end = NULL; */
571 /* void *start_addr; */
572 /* void *end_addr; */
574 /* while ((read = getline(&line, &n, fp)) != -1) { */
576 /* xbt_str_trim(line, NULL); */
577 /* xbt_str_strip_spaces(line); */
578 /* lfields = xbt_str_split(line,NULL); */
580 /* start_end = xbt_str_split(xbt_dynar_get_as(lfields, 0, char*), "-"); */
581 /* start_addr = (void *) strtoul(xbt_dynar_get_as(start_end, 0, char*), NULL, 16); */
582 /* end_addr = (void *) strtoul(xbt_dynar_get_as(start_end, 1, char*), NULL, 16); */
584 /* if(start_addr == heap){ */
587 /* xbt_dynar_reset(lfields); */
588 /* xbt_free(lfields); */
589 /* xbt_dynar_reset(start_end); */
590 /* xbt_free(start_end); */
591 /* return end_addr; */
596 /* xbt_dynar_reset(lfields); */
597 /* xbt_free(lfields); */
598 /* xbt_dynar_reset(start_end); */
599 /* xbt_free(start_end); */
609 void mmalloc_display_info_heap(xbt_mheap_t h){