X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/d2ef882f0df05a18a9e92abce9caa7ca25b8b9f8..844d5085f16498071d85e6b89e14c8db8191c13e:/src/xbt/mmalloc/mm_diff.c diff --git a/src/xbt/mmalloc/mm_diff.c b/src/xbt/mmalloc/mm_diff.c index 63b24c3eb6..8ca37d0022 100644 --- a/src/xbt/mmalloc/mm_diff.c +++ b/src/xbt/mmalloc/mm_diff.c @@ -7,6 +7,7 @@ #include "xbt/ex_interface.h" /* internals of backtrace setup */ #include "xbt/str.h" +#include "mc/mc.h" XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mm_diff, xbt, "Logging specific to mm_diff in mmalloc"); @@ -90,7 +91,7 @@ void mmalloc_backtrace_block_display(xbt_mheap_t mdp, size_t block){ } void mmalloc_backtrace_fragment_display(xbt_mheap_t mdp, size_t block, size_t frag){ - + xbt_ex_t e; memcpy(&e.bt,&(mdp->heapinfo[block].busy_frag.bt[frag]),sizeof(void*)*XBT_BACKTRACE_SIZE); @@ -112,99 +113,48 @@ void mmalloc_backtrace_fragment_display(xbt_mheap_t mdp, size_t block, size_t fr } } -int mmalloc_compare_heap(xbt_mheap_t mdp1, xbt_mheap_t mdp2, void* s_heap, void* r_heap){ +int mmalloc_compare_heap(xbt_mheap_t mdp1, xbt_mheap_t mdp2){ if(mdp1 == NULL && mdp2 == NULL){ fprintf(stderr, "Malloc descriptors null\n"); return 0; } - int errors = mmalloc_compare_mdesc(mdp1, mdp2, s_heap, r_heap); + int errors = mmalloc_compare_mdesc(mdp1, mdp2); return (errors > 0); } -int mmalloc_compare_mdesc(struct mdesc *mdp1, struct mdesc *mdp2, void* s_heap, void* r_heap){ +int mmalloc_compare_mdesc(struct mdesc *mdp1, struct mdesc *mdp2){ 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->heaplimit != mdp2->heaplimit){ fprintf(stderr,"Different limit of valid info table indices\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; - } + void* s_heap = (char *)mmalloc_get_current_heap() - STD_HEAP_SIZE - getpagesize(); - if(mdp1->version != mdp2->version){ - fprintf(stderr,"Different version of the mmalloc package\n"); - return 1; - }*/ + void *heapbase1 = (char *)mdp1 + BLOCKSIZE; + void *heapbase2 = (char *)mdp2 + BLOCKSIZE; size_t i, j; void *addr_block1, *addr_block2, *addr_frag1, *addr_frag2; size_t frag_size; - i = 0; + i = 1; int k; int distance = 0; + int total_distance = 0; + int pointer_align; + void *address_pointed1, *address_pointed2; - char *pointed_address1 = NULL, *pointed_address2 = NULL; + int block_pointed1, block_pointed2, frag_pointed1, frag_pointed2; + void *addr_block_pointed1, *addr_block_pointed2, *addr_frag_pointed1, *addr_frag_pointed2; /* Check busy blocks*/ @@ -215,209 +165,446 @@ int mmalloc_compare_mdesc(struct mdesc *mdp1, struct mdesc *mdp2, void* s_heap, errors++; } - addr_block1 = (char *)mdp1 + mdp1->headersize + ((i-1) * BLOCKSIZE); - addr_block2 = (char *)mdp2 + mdp2->headersize + ((i-1) * BLOCKSIZE); + /* 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)); if(mdp1->heapinfo[i].type == 0){ /* busy large block */ if(mdp1->heapinfo[i].busy_block.size != mdp2->heapinfo[i].busy_block.size){ - fprintf(stderr,"Different size of a large cluster : %zu - %zu\n", mdp1->heapinfo[i].busy_block.size, mdp2->heapinfo[i].busy_block.size); - errors++; - } + fprintf(stderr,"Different size of a large cluster : %zu - %zu\n", mdp1->heapinfo[i].busy_block.size, mdp2->heapinfo[i].busy_block.size); + fflush(NULL); + errors++; + } if(mdp1->heapinfo[i].busy_block.busy_size != mdp2->heapinfo[i].busy_block.busy_size){ - 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); - errors++; - } - - //if(memcmp(addr_block1, addr_block2, (mdp1->heapinfo[i].busy_block.size)) != 0){ - if(memcmp(addr_block1, addr_block2, (mdp1->heapinfo[i].busy_block.busy_size)) != 0){ - 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); - - /* Hamming distance on different blocks */ - distance = 0; - //for(k=0;kheapinfo[i].busy_block.size;k++){ - for(k=0;kheapinfo[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); - distance++; - pointer_align = (k / sizeof(void*)) * sizeof(void*); - pointed_address1 = xbt_strdup(get_addr_memory_map(*((void **)((char *)addr_block1 + pointer_align)), s_heap, r_heap)); - pointed_address2 = xbt_strdup(get_addr_memory_map(*((void **)((char *)addr_block2 + pointer_align)), s_heap, r_heap)); - fprintf(stderr, "Pointed address : %p (in %s) - %p (in %s)\n", *((void **)((char *)addr_block1 + pointer_align)), pointed_address1, *((void **)((char *)addr_block2 + pointer_align)), pointed_address2); - if((strcmp(pointed_address1, pointed_address2) == 0) && (strcmp(pointed_address1, "std_heap") == 0)){ - /* FIXME : compare value pointed thanks to DWARF */ - } - } - } - - fprintf(stderr, "Hamming distance between blocks : %d\n", distance); - - mmalloc_backtrace_block_display(mdp1, i); - mmalloc_backtrace_block_display(mdp2, i); - errors++; + 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); + errors++; + } + + /* Hamming distance on different blocks */ + distance = 0; + + + for(k=0;kheapinfo[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); + + /* 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)); + + 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 > mdp1->heapsize || block_pointed1 < 1 || (char *) address_pointed2 < (char*)((struct mdesc*)s_heap)->heapbase || block_pointed2 > mdp2->heapsize || block_pointed2 < 1) { + fprintf(stderr, "Unknown pointer(s) ! \n"); + fflush(NULL); + distance++; + continue; + } + + /*if(((char *) address_pointed1 > (char*)((struct mdesc*)s_heap)->heapbase) && (block_pointed1 < mdp1->heapsize) && (block_pointed1 >= 1)){ + addr_block_pointed1 = ((void*) (((ADDR2UINT((size_t)block_pointed1)) - 1) * BLOCKSIZE + (char*)heapbase1)); + if(((char *) address_pointed2 > (char*)((struct mdesc*)s_heap)->heapbase) && (block_pointed2 < mdp2->heapsize) && (block_pointed2 >= 1)){ + addr_block_pointed2 = ((void*) (((ADDR2UINT((size_t)block_pointed2)) - 1) * BLOCKSIZE + (char*)heapbase2)); + }else{ + addr_block_pointed2 = addr_block2; + block_pointed2 = i; + } + }else{ + addr_block_pointed1 = addr_block1; + block_pointed1 = i; + if(((char *) address_pointed2 > (char*)((struct mdesc*)s_heap)->heapbase) && (block_pointed2 < mdp2->heapsize) && (block_pointed2 >= 1)){ + addr_block_pointed2 = ((void*) (((ADDR2UINT((size_t)block_pointed2)) - 1) * BLOCKSIZE + (char*)heapbase2)); + }else{ + fprintf(stderr, "Unknown pointers ! \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)); + + 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){ + + 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 + + + frag_pointed1 = ((uintptr_t) (ADDR2UINT (address_pointed1) % (BLOCKSIZE))) >> mdp1->heapinfo[block_pointed1].type; + frag_pointed2 = ((uintptr_t) (ADDR2UINT (address_pointed2) % (BLOCKSIZE))) >> mdp2->heapinfo[block_pointed2].type; + + fprintf(stderr, "Fragments pointed : %d - %d\n", frag_pointed1, frag_pointed2); + + 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)))){ + fprintf(stderr, "Unknown pointer(s) ! \n"); + fflush(NULL); + distance++; + continue; + } + + 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]); + + if(mdp1->heapinfo[block_pointed1].busy_frag.frag_size[frag_pointed1] == mdp2->heapinfo[block_pointed2].busy_frag.frag_size[frag_pointed2]){ + + addr_frag_pointed1 = (char *)addr_block_pointed1 + (frag_pointed1 * (int)pow(2, mdp1->heapinfo[block_pointed1].type)); + addr_frag_pointed2 = (char *)addr_block_pointed2 + (frag_pointed2 * (int)pow(2, mdp2->heapinfo[block_pointed2].type)); + + if(memcmp(addr_frag_pointed1, addr_frag_pointed2, mdp1->heapinfo[block_pointed1].busy_frag.frag_size[frag_pointed1]) != 0){ + distance++; + }else{ + fprintf(stderr, "False difference detected\n"); + } + + }else{ + distance ++; + } + } + + }else{ + + 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))){ + fprintf(stderr, "Pointers on blocks with different types \n"); + distance++; + }else{ + + frag_pointed1 = ((uintptr_t) (ADDR2UINT (address_pointed1) % (BLOCKSIZE))) >> mdp1->heapinfo[block_pointed1].type; + frag_pointed2 = ((uintptr_t) (ADDR2UINT (address_pointed2) % (BLOCKSIZE))) >> mdp2->heapinfo[block_pointed2].type; + + fprintf(stderr, "Fragments pointed : %d - %d\n", frag_pointed1, frag_pointed2); + + 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)))){ + fprintf(stderr, "Unknown pointer(s) ! \n"); + fflush(NULL); + distance++; + continue; + } + + 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]); + + if(mdp1->heapinfo[block_pointed1].busy_frag.frag_size[frag_pointed1] == mdp2->heapinfo[block_pointed2].busy_frag.frag_size[frag_pointed2]){ + + addr_frag_pointed1 = (char *)addr_block_pointed1 + (frag_pointed1 * (int)pow(2, mdp1->heapinfo[block_pointed1].type)); + addr_frag_pointed2 = (char *)addr_block_pointed2 + (frag_pointed2 * (int)pow(2, mdp2->heapinfo[block_pointed2].type)); + + if(memcmp(addr_frag_pointed1, addr_frag_pointed2, mdp1->heapinfo[block_pointed1].busy_frag.frag_size[frag_pointed1]) != 0){ + distance++; + }else{ + fprintf(stderr, "False difference detected\n"); + } + + }else{ + distance ++; + } + } + } + } + } - if( mdp1->heapinfo[i].busy_block.size == 0) - i = i + 1; - else - i = i + mdp1->heapinfo[i].busy_block.size; + + if(distance>0){ + 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); + fflush(NULL); + 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; + } + + i++; }else{ - + if(mdp1->heapinfo[i].type > 0){ /* busy fragmented block */ - if(mdp1->heapinfo[i].type != mdp2->heapinfo[i].type){ - fprintf(stderr,"Different size of fragments in fragmented block %zu : %d - %d\n", i, mdp1->heapinfo[i].type, mdp2->heapinfo[i].type); - errors++; - } - - if(mdp1->heapinfo[i].busy_frag.nfree != mdp2->heapinfo[i].busy_frag.nfree){ - 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); - errors++; - } - - if(mdp1->heapinfo[i].busy_frag.first != mdp2->heapinfo[i].busy_frag.first){ - 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); - errors++; - } - - frag_size = pow(2, mdp1->heapinfo[i].type); - - for(j=0; j< (BLOCKSIZE/frag_size); j++){ - - if(mdp1->heapinfo[i].busy_frag.frag_size[j] != mdp2->heapinfo[i].busy_frag.frag_size[j]){ - 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]); - errors++; - } - - if(mdp1->heapinfo[i].busy_frag.frag_size[j] > 0){ - - addr_frag1 = (char *)addr_block1 + (j * frag_size); - addr_frag2 = (char *)addr_block2 + (j * frag_size); - - //if(memcmp(addr_frag1, addr_frag2, frag_size) != 0){ - if(memcmp(addr_frag1, addr_frag2, mdp1->heapinfo[i].busy_frag.frag_size[j]) != 0){ - 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); - - /* Hamming distance on different blocks */ - distance = 0; - //for(k=0;kheapinfo[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); - distance++; - pointer_align = (k / sizeof(void*)) * sizeof(void*); - pointed_address1 = xbt_strdup(get_addr_memory_map(*((void **)((char *)addr_frag1 + pointer_align)), s_heap, r_heap)); - pointed_address2 = xbt_strdup(get_addr_memory_map(*((void **)((char *)addr_frag2 + pointer_align)), s_heap, r_heap)); - fprintf(stderr, "Pointed address : %p (in %s) - %p (in %s)\n", *((void **)((char *)addr_frag1 + pointer_align)), pointed_address1, *((void **)((char *)addr_frag2 + pointer_align)), pointed_address2); - if((strcmp(pointed_address1, pointed_address2) == 0) && (strcmp(pointed_address1, "std_heap") == 0)){ - /* FIXME : compare value pointed thanks to DWARF */ - } - } - } - - fprintf(stderr, "Hamming distance between fragments : %d\n", distance); - - mmalloc_backtrace_fragment_display(mdp1, i, j); - mmalloc_backtrace_fragment_display(mdp2, i, j); - errors++; - } - - } - } - - i++; + if(mdp1->heapinfo[i].type != mdp2->heapinfo[i].type){ + fprintf(stderr,"Different size of fragments in fragmented block %zu : %d - %d\n", i, mdp1->heapinfo[i].type, mdp2->heapinfo[i].type); fflush(NULL); + errors++; + } + + if(mdp1->heapinfo[i].busy_frag.nfree != mdp2->heapinfo[i].busy_frag.nfree){ + 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); + errors++; + } + + if(mdp1->heapinfo[i].busy_frag.first != mdp2->heapinfo[i].busy_frag.first){ + 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); + errors++; + } + + frag_size = pow(2, mdp1->heapinfo[i].type); + + for(j=0; j< (BLOCKSIZE/frag_size); j++){ + + if(mdp1->heapinfo[i].busy_frag.frag_size[j] != mdp2->heapinfo[i].busy_frag.frag_size[j]){ + 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); + errors++; + } + + if(mdp1->heapinfo[i].busy_frag.frag_size[j] > 0){ + + addr_frag1 = (char *)addr_block1 + (j * frag_size); + addr_frag2 = (char *)addr_block2 + (j * frag_size); + + /* Hamming distance on different blocks */ + distance = 0; + + for(k=0;kheapinfo[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 > mdp1->heapsize || block_pointed1 < 1 || (char *) address_pointed2 < (char*)((struct mdesc*)s_heap)->heapbase || block_pointed2 > mdp2->heapsize || block_pointed2 < 1) { + fprintf(stderr, "Unknown pointer ! \n"); + fflush(NULL); + distance++; + continue; + } + + /*if(((char *) address_pointed1 > (char*)((struct mdesc*)s_heap)->heapbase) && (block_pointed1 < mdp1->heapsize) && (block_pointed1 >= 1)){ + addr_block_pointed1 = ((void*) (((ADDR2UINT((size_t)block_pointed1)) - 1) * BLOCKSIZE + (char*)heapbase1)); + pointer1 = 1; + if(((char *) address_pointed2 > (char*)((struct mdesc*)s_heap)->heapbase) && (block_pointed2 < mdp2->heapsize) && (block_pointed2 >= 1)){ + addr_block_pointed2 = ((void*) (((ADDR2UINT((size_t)block_pointed2)) - 1) * BLOCKSIZE + (char*)heapbase2)); + pointer2 = 1; + }else{ + pointer2 = 0; + addr_block_pointed2 = addr_block2; + block_pointed2 = i; + } + }else{ + addr_block_pointed1 = addr_block1; + block_pointed1 = i; + pointer1 = 0; + if(((char *) address_pointed2 > (char*)((struct mdesc*)s_heap)->heapbase) && (block_pointed2 < mdp2->heapsize) && (block_pointed2 >= 1)){ + addr_block_pointed2 = ((void*) (((ADDR2UINT((size_t)block_pointed2)) - 1) * BLOCKSIZE + (char*)heapbase2)); + pointer2 = 1; + }else{ + fprintf(stderr, "Unknown pointers ! \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)); + + 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){ + + 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 + + + frag_pointed1 = ((uintptr_t) (ADDR2UINT (address_pointed1) % (BLOCKSIZE))) >> mdp1->heapinfo[block_pointed1].type; + frag_pointed2 = ((uintptr_t) (ADDR2UINT (address_pointed2) % (BLOCKSIZE))) >> mdp2->heapinfo[block_pointed2].type; + + fprintf(stderr, "Fragments pointed : %d - %d\n", frag_pointed1, frag_pointed2); + + 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)))){ + fprintf(stderr, "Unknown pointer ! \n"); + fflush(NULL); + distance++; + continue; + } + + 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]); + + if(mdp1->heapinfo[block_pointed1].busy_frag.frag_size[frag_pointed1] == mdp2->heapinfo[block_pointed2].busy_frag.frag_size[frag_pointed2]){ + + addr_frag_pointed1 = (char *)addr_block_pointed1 + (frag_pointed1 * (int)pow(2, mdp1->heapinfo[block_pointed1].type)); + addr_frag_pointed2 = (char *)addr_block_pointed2 + (frag_pointed2 * (int)pow(2, mdp2->heapinfo[block_pointed2].type)); + + if(memcmp(addr_frag_pointed1, addr_frag_pointed2, mdp1->heapinfo[block_pointed1].busy_frag.frag_size[frag_pointed1]) != 0){ + distance++; + }else{ + fprintf(stderr, "False difference detected\n"); + } + + }else{ + distance ++; + } + } + + }else{ + + 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))){ + fprintf(stderr, "Pointers on blocks with different types \n"); + distance++; + }else{ + + frag_pointed1 = ((uintptr_t) (ADDR2UINT (address_pointed1) % (BLOCKSIZE))) >> mdp1->heapinfo[block_pointed1].type; + frag_pointed2 = ((uintptr_t) (ADDR2UINT (address_pointed2) % (BLOCKSIZE))) >> mdp2->heapinfo[block_pointed2].type; + + fprintf(stderr, "Fragments pointed : %d - %d\n", frag_pointed1, frag_pointed2); + + 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)))){ + fprintf(stderr, "Unknown pointers ! \n"); + fflush(NULL); + distance++; + continue; + } + + 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]); + + if(mdp1->heapinfo[block_pointed1].busy_frag.frag_size[frag_pointed1] == mdp2->heapinfo[block_pointed2].busy_frag.frag_size[frag_pointed2]){ + + addr_frag_pointed1 = (char *)addr_block_pointed1 + (frag_pointed1 * (int)pow(2, mdp1->heapinfo[block_pointed1].type)); + addr_frag_pointed2 = (char *)addr_block_pointed2 + (frag_pointed2 * (int)pow(2, mdp2->heapinfo[block_pointed2].type)); + + if(memcmp(addr_frag_pointed1, addr_frag_pointed2, mdp1->heapinfo[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, mdp1->heapinfo[i].busy_frag.frag_size[j], i); + 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; + + } + + } + } + + i++; }else{ /* free block */ - i++; + i++; } - + } } - free(pointed_address1); - free(pointed_address2); + + fprintf(stderr, "Hamming distance between heap regions : %d\n", total_distance); return (errors); } -const char* get_addr_memory_map(void *addr, void* s_heap, void* r_heap){ +/* void *get_end_addr_heap(void *heap){ */ - 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 */ +/* 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 *\/ */ - fp = fopen("/proc/self/maps", "r"); - - if(fp == NULL) - perror("fopen failed"); +/* fp = fopen("/proc/self/maps", "r"); */ - if(addr == NULL){ - free(line); - fclose(fp); - return "nil"; - } +/* if(fp == NULL) */ +/* perror("fopen failed"); */ - xbt_dynar_t lfields = NULL; - xbt_dynar_t start_end = NULL; - void *start_addr; - void *end_addr; - - while ((read = getline(&line, &n, fp)) != -1) { - - xbt_str_trim(line, NULL); - xbt_str_strip_spaces(line); - lfields = xbt_str_split(line,NULL); - - 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); - - if((addr > start_addr) && ( addr < end_addr)){ - free(line); - fclose(fp); - if(start_addr == s_heap){ - xbt_dynar_reset(lfields); - xbt_free(lfields); - xbt_dynar_reset(start_end); - xbt_free(start_end); - return "std_heap"; - } - if(start_addr == r_heap){ - xbt_dynar_reset(lfields); - xbt_free(lfields); - xbt_dynar_reset(start_end); - xbt_free(start_end); - return "raw_heap"; - } - if(xbt_dynar_length(lfields) == 6){ - return xbt_dynar_get_as(lfields, xbt_dynar_length(lfields) - 1, char*); - }else{ - xbt_dynar_reset(lfields); - xbt_free(lfields); - xbt_dynar_reset(start_end); - xbt_free(start_end); - return "Anonymous"; - } - } - } +/* xbt_dynar_t lfields = NULL; */ +/* xbt_dynar_t start_end = NULL; */ +/* void *start_addr; */ +/* void *end_addr; */ + +/* while ((read = getline(&line, &n, fp)) != -1) { */ + +/* xbt_str_trim(line, NULL); */ +/* xbt_str_strip_spaces(line); */ +/* lfields = xbt_str_split(line,NULL); */ + +/* 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); */ + +/* 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_reset(lfields); */ +/* xbt_free(lfields); */ +/* xbt_dynar_reset(start_end); */ +/* xbt_free(start_end); */ +/* free(line); */ +/* fclose(fp); */ +/* return NULL; */ + + +/* } */ - xbt_dynar_reset(lfields); - xbt_free(lfields); - xbt_dynar_reset(start_end); - xbt_free(start_end); - free(line); - fclose(fp); - return "Unknown area"; -} void mmalloc_display_info_heap(xbt_mheap_t h){