* under the terms of the license (GNU LGPL) which comes with this package. */
#include "xbt/ex_interface.h" /* internals of backtrace setup */
+#include "xbt/str.h"
+#include "mc/mc.h"
+#include "xbt/mmalloc.h"
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mm_diff, xbt,
"Logging specific to mm_diff in mmalloc");
extern char *xbt_binary_name;
-void mmalloc_backtrace_display(xbt_mheap_t mdp, void *ptr){
- size_t block = BLOCK(ptr);
- int type;
- xbt_ex_t e;
+xbt_dynar_t mc_comparison_ignore;
+xbt_dynar_t stacks_areas;
- if ((char *) ptr < (char *) mdp->heapbase || block > mdp->heapsize) {
- fprintf(stderr,"Ouch, this pointer is not mine. I cannot display its backtrace. I refuse it to death!!\n");
- abort();
- }
+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 heap_area_t new_heap_area(int block, int fragment);
- type = mdp->heapinfo[block].type;
+static int compare_area(void *area1, void* area2, size_t size, xbt_dynar_t previous, int check_ignore);
+static void match_equals(xbt_dynar_t list, xbt_dynar_t *equals);
- if (type != 0) {
- //fprintf(stderr,"Only full blocks are backtraced for now. Ignoring your request.\n");
- return;
- }
- if (mdp->heapinfo[block].busy_block.bt_size == 0) {
- fprintf(stderr,"No backtrace available for that block, sorry.\n");
+static int in_mc_comparison_ignore(int block, int fragment);
+static size_t heap_comparison_ignore(void *address);
+static void add_heap_equality(xbt_dynar_t *equals, void *a1, void *a2);
+static void remove_heap_equality(xbt_dynar_t *equals, int address, void *a);
+
+static char* is_stack(void *address);
+
+void mmalloc_backtrace_block_display(void* heapinfo, int block){
+
+ xbt_ex_t e;
+
+ if (((malloc_info *)heapinfo)[block].busy_block.bt_size == 0) {
+ fprintf(stderr, "No backtrace available for that block, sorry.\n");
return;
}
- memcpy(&e.bt,&(mdp->heapinfo[block].busy_block.bt),sizeof(void*)*XBT_BACKTRACE_SIZE);
- e.used = mdp->heapinfo[block].busy_block.bt_size;
+ memcpy(&e.bt,&(((malloc_info *)heapinfo)[block].busy_block.bt),sizeof(void*)*XBT_BACKTRACE_SIZE);
+ e.used = ((malloc_info *)heapinfo)[block].busy_block.bt_size;
xbt_ex_setup_backtrace(&e);
if (e.used == 0) {
} else {
int i;
- fprintf(stderr, "Backtrace of where the block %p where malloced (%d frames):\n",ptr,e.used);
+ fprintf(stderr, "Backtrace of where the block %d was malloced (%d frames):\n", block ,e.used);
for (i = 0; i < e.used; i++) /* no need to display "xbt_backtrace_display" */{
- fprintf(stderr,"%d",i);fflush(NULL);
- fprintf(stderr, "---> %s\n", e.bt_strings[i] + 4);
+ fprintf(stderr, "%d ---> %s\n",i, e.bt_strings[i] + 4);
}
}
-}
+}
-void mmalloc_backtrace_block_display(xbt_mheap_t mdp, size_t block){
+void mmalloc_backtrace_fragment_display(void* heapinfo, int block, int frag){
- int type;
xbt_ex_t e;
- type = mdp->heapinfo[block].type;
-
- if (type != 0) {
- fprintf(stderr,"Only full blocks are backtraced for now. Ignoring your request.\n");
- return;
- }
- if (mdp->heapinfo[block].busy_block.bt_size == 0) {
- fprintf(stderr,"No backtrace available for that block, sorry.\n");
- return;
- }
-
- memcpy(&e.bt,&(mdp->heapinfo[block].busy_block.bt),sizeof(void*)*XBT_BACKTRACE_SIZE);
- e.used = mdp->heapinfo[block].busy_block.bt_size;
+ memcpy(&e.bt,&(((malloc_info *)heapinfo)[block].busy_frag.bt[frag]),sizeof(void*)*XBT_BACKTRACE_SIZE);
+ e.used = XBT_BACKTRACE_SIZE;
xbt_ex_setup_backtrace(&e);
if (e.used == 0) {
} else {
int i;
- fprintf(stderr, "Backtrace of where the block %zu where malloced (%d frames):\n", block ,e.used);
+ fprintf(stderr, "Backtrace of where the fragment %d in block %d was malloced (%d frames):\n", frag, block ,e.used);
for (i = 0; i < e.used; i++) /* no need to display "xbt_backtrace_display" */{
- fprintf(stderr,"%d",i);fflush(NULL);
- fprintf(stderr, "---> %s\n", e.bt_strings[i] + 4);
+ fprintf(stderr, "%d ---> %s\n",i, e.bt_strings[i] + 4);
}
}
+
}
-int mmalloc_compare_heap(xbt_mheap_t mdp1, xbt_mheap_t mdp2){
+void mmalloc_backtrace_display(void *addr){
- if(mdp1 == NULL && mdp2 == NULL){
- XBT_DEBUG("Malloc descriptors null\n");
- return 0;
+ size_t block, frag_nb;
+ int type;
+
+ xbt_mheap_t heap = __mmalloc_current_heap ?: (xbt_mheap_t) mmalloc_preinit();
+
+ block = (((char*) (addr) - (char*) heap -> heapbase) / BLOCKSIZE + 1);
+
+ type = heap->heapinfo[block].type;
+
+ switch(type){
+ case -1 : /* Free block */
+ fprintf(stderr, "Asked to display the backtrace of a block that is free. I'm puzzled\n");
+ xbt_abort();
+ break;
+ case 0: /* Large block */
+ mmalloc_backtrace_block_display(heap->heapinfo, block);
+ break;
+ default: /* Fragmented block */
+ frag_nb = RESIDUAL(addr, BLOCKSIZE) >> type;
+ if(heap->heapinfo[block].busy_frag.frag_size[frag_nb] == -1){
+ fprintf(stderr , "Asked to display the backtrace of a fragment that is free. I'm puzzled\n");
+ xbt_abort();
+ }
+ mmalloc_backtrace_fragment_display(heap->heapinfo, block, frag_nb);
+ break;
}
- int errors = mmalloc_compare_mdesc(mdp1, mdp2);
+}
- return (errors > 0);
-}
+void *s_heap, *heapbase1, *heapbase2;
+malloc_info *heapinfo1, *heapinfo2;
+size_t heaplimit, heapsize1, heapsize2;
-int mmalloc_compare_mdesc(struct mdesc *mdp1, struct mdesc *mdp2){
+int ignore_done;
- int errors = 0;
+int mmalloc_compare_heap(xbt_mheap_t heap1, xbt_mheap_t heap2, xbt_dynar_t *stack1, xbt_dynar_t *stack2, xbt_dynar_t *equals){
- if(mdp1->headersize != mdp2->headersize){
- fprintf(stderr, "Different size of the file header for the mapped files\n");
- return 1;
+ if(heap1 == NULL && heap1 == NULL){
+ XBT_DEBUG("Malloc descriptors null");
+ return 0;
}
- if(mdp1->refcount != mdp2->refcount){
- fprintf(stderr, "Different number of processes that attached the heap\n");
+ if(heap1->heaplimit != heap2->heaplimit){
+ XBT_DEBUG("Different limit of valid info table indices");
return 1;
}
- if(strcmp(mdp1->magic, mdp2->magic) != 0){
- fprintf(stderr,"Different magic number\n");
- return 1;
+ /* Heap information */
+ heaplimit = ((struct mdesc *)heap1)->heaplimit;
+
+ s_heap = (char *)mmalloc_get_current_heap() - STD_HEAP_SIZE - getpagesize();
+
+ heapbase1 = (char *)heap1 + BLOCKSIZE;
+ heapbase2 = (char *)heap2 + BLOCKSIZE;
+
+ heapinfo1 = (malloc_info *)((char *)heap1 + ((uintptr_t)((char *)heap1->heapinfo - (char *)s_heap)));
+ heapinfo2 = (malloc_info *)((char *)heap2 + ((uintptr_t)((char *)heap2->heapinfo - (char *)s_heap)));
+
+ heapsize1 = heap1->heapsize;
+ heapsize2 = heap2->heapsize;
+
+ /* Start comparison */
+ size_t i1, i2, j1, j2, k, current_block, current_fragment;
+ void *addr_block1, *addr_block2, *addr_frag1, *addr_frag2;
+ void *real_addr_block1, *real_addr_block2;
+ char *stack_name;
+ int nb_block1=0, nb_frag1=0, nb_block2=0, nb_frag2=0;
+
+ xbt_dynar_t previous = xbt_dynar_new(sizeof(heap_area_pair_t), heap_area_pair_free_voidp);
+
+ int equal, res_compare;
+
+ ignore_done = 0;
+
+ /* Init equal information */
+ i1 = 1;
+
+ while(i1<=heaplimit){
+ if(heapinfo1[i1].type == 0){
+ if(heapinfo1[i1].busy_block.busy_size > 0)
+ nb_block1++;
+ heapinfo1[i1].busy_block.equal_to = NULL;
+ }
+ if(heapinfo1[i1].type > 0){
+ for(j1=0; j1 < (size_t) (BLOCKSIZE >> heapinfo1[i1].type); j1++){
+ if(heapinfo1[i1].busy_frag.frag_size[j1] > 0)
+ nb_frag1++;
+ heapinfo1[i1].busy_frag.equal_to[j1] = NULL;
+ }
+ }
+ i1++;
}
- if(mdp1->flags != mdp2->flags){
- fprintf(stderr,"Different flags\n");
- return 1;
+ i2 = 1;
+
+ while(i2<=heaplimit){
+ if(heapinfo2[i2].type == 0){
+ if(heapinfo2[i2].busy_block.busy_size > 0)
+ nb_block2++;
+ heapinfo2[i2].busy_block.equal_to = NULL;
+ }
+ if(heapinfo2[i2].type > 0){
+ for(j2=0; j2 < (size_t) (BLOCKSIZE >> heapinfo2[i2].type); j2++){
+ if(heapinfo2[i2].busy_frag.frag_size[j2] > 0)
+ nb_frag2++;
+ heapinfo2[i2].busy_frag.equal_to[j2] = NULL;
+ }
+ }
+ i2++;
}
- if(mdp1->heapsize != mdp2->heapsize){
- fprintf(stderr,"Different number of info entries\n");
+ if(nb_block1 != nb_block2 || nb_frag1 != nb_frag2){
+ XBT_DEBUG("Different number of busy blocks (%d - %d) or busy fragments (%d - %d)", nb_block1, nb_block2, nb_frag1, nb_frag2);
return 1;
}
+
+ /* Check busy blocks*/
+
+ i1 = 1;
+
+ while(i1 <= heaplimit){
+
+ current_block = i1;
+
+ if(heapinfo1[i1].type == -1){ /* Free block */
+ i1++;
+ continue;
+ }
+
+ addr_block1 = ((void*) (((ADDR2UINT(i1)) - 1) * BLOCKSIZE + (char*)heapbase1));
+ real_addr_block1 = (char*)((xbt_mheap_t)s_heap)->heapbase + (((char *)addr_block1) - (char *)heapbase1);
+
+ if(heapinfo1[i1].type == 0){ /* Large block */
+
+ if((stack_name = is_stack(real_addr_block1)) != NULL){
+ stack_region_t stack = xbt_new0(s_stack_region_t, 1);
+ stack->address = addr_block1;
+ stack->process_name = strdup(stack_name);
+ stack->size = heapinfo1[i1].busy_block.busy_size;
+ xbt_dynar_push(*stack1, &stack);
+ }
+
+ if(heapinfo1[i1].busy_block.busy_size == 0){
+ i1++;
+ continue;
+ }
+
+ if(heapinfo1[i1].busy_block.equal_to != NULL){
+ i1++;
+ continue;
+ }
+
+ i2 = 1;
+ equal = 0;
+ /* Try first to associate to same block in the other heap */
+ if(heapinfo2[current_block].type == heapinfo1[current_block].type){
+
+ if(heapinfo2[current_block].busy_block.equal_to == NULL){
+
+ if(heapinfo1[current_block].busy_block.busy_size == heapinfo2[current_block].busy_block.busy_size){
+
+ addr_block2 = ((void*) (((ADDR2UINT(current_block)) - 1) * BLOCKSIZE + (char*)heapbase2));
+ real_addr_block2 = (char*)((xbt_mheap_t)s_heap)->heapbase + (((char *)addr_block2) - (char *)heapbase2);
+
+ if((stack_name = is_stack(real_addr_block2)) != NULL){
+ stack_region_t stack = xbt_new0(s_stack_region_t, 1);
+ stack->address = addr_block2;
+ stack->process_name = strdup(stack_name);
+ stack->size = heapinfo2[current_block].busy_block.busy_size;
+ xbt_dynar_push(*stack2, &stack);
+ }
+
+ add_heap_area_pair(previous, current_block, -1, current_block, -1);
+
+ if(ignore_done < xbt_dynar_length(mc_comparison_ignore)){
+ if(in_mc_comparison_ignore((int)current_block, -1))
+ res_compare = compare_area(addr_block1, addr_block2, heapinfo1[current_block].busy_block.busy_size, previous, 1);
+ else
+ res_compare = compare_area(addr_block1, addr_block2, heapinfo1[current_block].busy_block.busy_size, previous, 0);
+ }else{
+ res_compare = compare_area(addr_block1, addr_block2, heapinfo1[current_block].busy_block.busy_size, previous, 0);
+ }
+
+ if(res_compare == 0){
+ for(k=1; k < heapinfo2[current_block].busy_block.size; k++)
+ heapinfo2[current_block+k].busy_block.equal_to = new_heap_area(i1, -1);
+ for(k=1; k < heapinfo1[current_block].busy_block.size; k++)
+ heapinfo1[current_block+k].busy_block.equal_to = new_heap_area(i1, -1);
+ equal = 1;
+ match_equals(previous, equals);
+ i1 = i1 + heapinfo1[current_block].busy_block.size;
+ }
+
+ xbt_dynar_reset(previous);
+
+ }
+
+ }
+
+ }
+
+ while(i2 <= heaplimit && !equal){
+
+ addr_block2 = ((void*) (((ADDR2UINT(i2)) - 1) * BLOCKSIZE + (char*)heapbase2));
+ real_addr_block2 = (char*)((xbt_mheap_t)s_heap)->heapbase + (((char *)addr_block2) - (char *)heapbase2);
+
+ if((stack_name = is_stack(real_addr_block2)) != NULL){
+ stack_region_t stack = xbt_new0(s_stack_region_t, 1);
+ stack->address = addr_block2;
+ stack->process_name = strdup(stack_name);
+ stack->size = heapinfo2[i2].busy_block.busy_size;
+ xbt_dynar_push(*stack2, &stack);
+ }
+
+ if(i2 == current_block){
+ i2++;
+ continue;
+ }
+
+ if(heapinfo2[i2].type != 0){
+ i2++;
+ continue;
+ }
+
+ if(heapinfo2[i2].busy_block.equal_to != NULL){
+ 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;
+ }
+
+ /* Comparison */
+ add_heap_area_pair(previous, i1, -1, i2, -1);
+
+ if(ignore_done < xbt_dynar_length(mc_comparison_ignore)){
+ if(in_mc_comparison_ignore((int)i1, -1))
+ res_compare = compare_area(addr_block1, addr_block2, heapinfo1[i1].busy_block.busy_size, previous, 1);
+ else
+ res_compare = compare_area(addr_block1, addr_block2, heapinfo1[i1].busy_block.busy_size, previous, 0);
+ }else{
+ res_compare = compare_area(addr_block1, addr_block2, heapinfo1[i1].busy_block.busy_size, previous, 0);
+ }
+
+ if(res_compare == 0){
+ for(k=1; k < heapinfo2[i2].busy_block.size; k++)
+ heapinfo2[i2+k].busy_block.equal_to = new_heap_area(i1, -1);
+ for(k=1; k < heapinfo1[i1].busy_block.size; k++)
+ heapinfo1[i1+k].busy_block.equal_to = new_heap_area(i2, -1);
+ equal = 1;
+ match_equals(previous, equals);
+ i1 = i1 + heapinfo1[i1].busy_block.size;
+ }
+
+ xbt_dynar_reset(previous);
+
+ i2++;
+
+ }
+
+ if(!equal)
+ i1++;
+
+ }else{ /* Fragmented block */
+
+ for(j1=0; j1 < (size_t) (BLOCKSIZE >> heapinfo1[i1].type); j1++){
+
+ current_fragment = j1;
+
+ if(heapinfo1[i1].busy_frag.frag_size[j1] == -1) /* Free fragment */
+ continue;
+
+ if(heapinfo1[i1].busy_frag.equal_to[j1] != NULL)
+ continue;
+
+ addr_frag1 = (void*) ((char *)addr_block1 + (j1 << heapinfo1[i1].type));
+
+ i2 = 1;
+ equal = 0;
+
+ /* Try first to associate to same fragment in the other heap */
+ if(heapinfo2[current_block].type == heapinfo1[current_block].type){
+
+ if(heapinfo2[current_block].busy_frag.equal_to[current_fragment] == NULL){
+
+ if(heapinfo1[current_block].busy_frag.frag_size[current_fragment] == heapinfo2[current_block].busy_frag.frag_size[current_fragment]){
+
+ addr_block2 = ((void*) (((ADDR2UINT(current_block)) - 1) * BLOCKSIZE + (char*)heapbase2));
+ addr_frag2 = (void*) ((char *)addr_block2 + (current_fragment << heapinfo2[current_block].type));
+
+ add_heap_area_pair(previous, current_block, current_fragment, current_block, current_fragment);
+
+ if(ignore_done < xbt_dynar_length(mc_comparison_ignore)){
+ if(in_mc_comparison_ignore((int)current_block, (int)current_fragment))
+ res_compare = compare_area(addr_frag1, addr_frag2, heapinfo1[current_block].busy_frag.frag_size[current_fragment], previous, 1);
+ else
+ res_compare = compare_area(addr_frag1, addr_frag2, heapinfo1[current_block].busy_frag.frag_size[current_fragment], previous, 0);
+ }else{
+ res_compare = compare_area(addr_frag1, addr_frag2, heapinfo1[current_block].busy_frag.frag_size[current_fragment], previous, 0);
+ }
+
+ if(res_compare == 0){
+ equal = 1;
+ match_equals(previous, equals);
+ }
+
+ xbt_dynar_reset(previous);
+
+ }
+
+ }
+
+ }
+
+ while(i2 <= heaplimit && !equal){
+
+
+ if(heapinfo2[i2].type <= 0){
+ i2++;
+ continue;
+ }
+
+ for(j2=0; j2 < (size_t) (BLOCKSIZE >> heapinfo2[i2].type); j2++){
+
+ if(heapinfo2[i2].type == heapinfo1[i1].type && i2 == current_block && j2 == current_fragment)
+ continue;
+
+ if(heapinfo2[i2].busy_frag.equal_to[j2] != NULL)
+ continue;
+
+ 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 = (void*) ((char *)addr_block2 + (j2 << heapinfo2[i2].type));
+
+ /* Comparison */
+ add_heap_area_pair(previous, i1, j1, i2, j2);
+
+ if(ignore_done < xbt_dynar_length(mc_comparison_ignore)){
+ if(in_mc_comparison_ignore((int)i1, (int)j1))
+ res_compare = compare_area(addr_frag1, addr_frag2, heapinfo1[i1].busy_frag.frag_size[j1], previous, 1);
+ else
+ res_compare = compare_area(addr_frag1, addr_frag2, heapinfo1[i1].busy_frag.frag_size[j1], previous, 0);
+ }else{
+ res_compare = compare_area(addr_frag1, addr_frag2, heapinfo1[i1].busy_frag.frag_size[j1], previous, 0);
+ }
+
+ if(res_compare == 0){
+ equal = 1;
+ match_equals(previous, equals);
+ break;
+ }
+
+ xbt_dynar_reset(previous);
+
+ }
+
+ i2++;
+
+ }
+
+ }
+
+ i1++;
+
+ }
- if(mdp1->heapbase != mdp2->heapbase){
- fprintf(stderr,"Different first block of the heap\n");
- return 1;
}
+ /* All blocks/fragments are equal to another block/fragment ? */
+ size_t i = 1, j = 0;
+ int nb_diff1 = 0, nb_diff2 = 0;
+
+ while(i<heaplimit){
+ if(heapinfo1[i].type == 0){
+ if(heapinfo1[i].busy_block.busy_size > 0){
+ if(heapinfo1[i].busy_block.equal_to == NULL){
+ if(XBT_LOG_ISENABLED(mm_diff, xbt_log_priority_debug)){
+ addr_block1 = ((void*) (((ADDR2UINT(i)) - 1) * BLOCKSIZE + (char*)heapbase1));
+ XBT_DEBUG("Block %zu (%p) not found (size used = %zu)", i, addr_block1, heapinfo1[i].busy_block.busy_size);
+ mmalloc_backtrace_block_display((void*)heapinfo1, i);
+ }
+ nb_diff1++;
+ }
+ }
+ }
+ if(heapinfo1[i].type > 0){
+ addr_block1 = ((void*) (((ADDR2UINT(i)) - 1) * BLOCKSIZE + (char*)heapbase1));
+ for(j=0; j < (size_t) (BLOCKSIZE >> heapinfo1[i].type); j++){
+ if(heapinfo1[i].busy_frag.frag_size[j] > 0){
+ if(heapinfo1[i].busy_frag.equal_to[j] == NULL){
+ if(XBT_LOG_ISENABLED(mm_diff, xbt_log_priority_debug)){
+ addr_frag1 = (void*) ((char *)addr_block1 + (j << heapinfo1[i].type));
+ XBT_DEBUG("Block %zu, Fragment %zu (%p) not found (size used = %d)", i, j, addr_frag1, heapinfo1[i].busy_frag.frag_size[j]);
+ mmalloc_backtrace_fragment_display((void*)heapinfo1, i, j);
+ }
+ nb_diff1++;
+ }
+ }
+ }
+ }
+
+ i++;
+ }
- if(mdp1->heapindex != mdp2->heapindex){
- fprintf(stderr,"Different index for the heap table : %zu - %zu\n", mdp1->heapindex, mdp2->heapindex);
- return 1;
+ XBT_DEBUG("Different blocks or fragments in heap1 : %d", nb_diff1);
+
+ i = 1;
+
+ while(i<heaplimit){
+ if(heapinfo2[i].type == 0){
+ if(heapinfo2[i].busy_block.busy_size > 0){
+ if(heapinfo2[i].busy_block.equal_to == NULL){
+ if(XBT_LOG_ISENABLED(mm_diff, xbt_log_priority_debug)){
+ addr_block2 = ((void*) (((ADDR2UINT(i)) - 1) * BLOCKSIZE + (char*)heapbase2));
+ XBT_DEBUG("Block %zu (%p) not found (size used = %zu)", i, addr_block2, heapinfo2[i].busy_block.busy_size);
+ mmalloc_backtrace_block_display((void*)heapinfo2, i);
+ }
+ nb_diff2++;
+ }
+ }
+ }
+ if(heapinfo2[i].type > 0){
+ addr_block2 = ((void*) (((ADDR2UINT(i)) - 1) * BLOCKSIZE + (char*)heapbase2));
+ for(j=0; j < (size_t) (BLOCKSIZE >> heapinfo2[i].type); j++){
+ if(heapinfo2[i].busy_frag.frag_size[j] > 0){
+ if(heapinfo2[i].busy_frag.equal_to[j] == NULL){
+ if(XBT_LOG_ISENABLED(mm_diff, xbt_log_priority_debug)){
+ addr_frag2 = (void*) ((char *)addr_block2 + (j << heapinfo2[i].type));
+ XBT_DEBUG( "Block %zu, Fragment %zu (%p) not found (size used = %d)", i, j, addr_frag2, heapinfo2[i].busy_frag.frag_size[j]);
+ mmalloc_backtrace_fragment_display((void*)heapinfo2, i, j);
+ }
+ nb_diff2++;
+ }
+ }
+ }
+ }
+ i++;
}
+ XBT_DEBUG("Different blocks or fragments in heap2 : %d", nb_diff2);
- if(mdp1->base != mdp2->base){
- fprintf(stderr,"Different base address of the memory region\n");
- return 1;
+ xbt_dynar_free(&previous);
+
+ return ((nb_diff1 > 0) || (nb_diff2 > 0));
+
+}
+
+static heap_area_t new_heap_area(int block, int fragment){
+ heap_area_t area = NULL;
+ area = xbt_new0(s_heap_area_t, 1);
+ area->block = block;
+ area->fragment = fragment;
+ return area;
+}
+
+static int in_mc_comparison_ignore(int block, int fragment){
+
+ unsigned int cursor = 0;
+ int start = 0;
+ int end = xbt_dynar_length(mc_comparison_ignore) - 1;
+ mc_ignore_region_t region;
+
+ while(start <= end){
+ cursor = (start + end) / 2;
+ region = (mc_ignore_region_t)xbt_dynar_get_as(mc_comparison_ignore, cursor, mc_ignore_region_t);
+ if(region->block == block){
+ if(region->fragment == fragment)
+ return 1;
+ if(region->fragment < fragment)
+ start = cursor + 1;
+ if(region->fragment > fragment)
+ end = cursor - 1;
+ }
+ if(region->block < block)
+ start = cursor + 1;
+ if(region->block > block)
+ end = cursor - 1;
}
- if(mdp1->breakval != mdp2->breakval){
- fprintf(stderr,"Different current location in the memory region\n");
- return 1;
+ return 0;
+}
+
+static size_t heap_comparison_ignore(void *address){
+ unsigned int cursor = 0;
+ int start = 0;
+ int end = xbt_dynar_length(mc_comparison_ignore) - 1;
+ mc_ignore_region_t region;
+
+ while(start <= end){
+ cursor = (start + end) / 2;
+ region = (mc_ignore_region_t)xbt_dynar_get_as(mc_comparison_ignore, cursor, mc_ignore_region_t);
+ if(region->address == address)
+ return region->size;
+ if(region->address < address)
+ start = cursor + 1;
+ if(region->address > address)
+ end = cursor - 1;
}
- if(mdp1->top != mdp2->top){
- fprintf(stderr,"Different end of the current location in the memory region\n");
- return 1;
+ return 0;
+}
+
+
+static int compare_area(void *area1, void* area2, size_t size, xbt_dynar_t previous, int check_ignore){
+
+ size_t i = 0, pointer_align = 0, ignore1 = 0, ignore2 = 0;
+ void *address_pointed1, *address_pointed2, *addr_block_pointed1, *addr_block_pointed2, *addr_frag_pointed1, *addr_frag_pointed2;
+ size_t block_pointed1, block_pointed2, frag_pointed1, frag_pointed2;
+ int res_compare;
+ void *current_area1, *current_area2;
+
+ while(i<size){
+
+ if(check_ignore){
+
+ current_area1 = (char*)((xbt_mheap_t)s_heap)->heapbase + ((((char *)area1) + i) - (char *)heapbase1);
+ if((ignore1 = heap_comparison_ignore(current_area1)) > 0){
+ current_area2 = (char*)((xbt_mheap_t)s_heap)->heapbase + ((((char *)area2) + i) - (char *)heapbase2);
+ if((ignore2 = heap_comparison_ignore(current_area2)) == ignore1){
+ i = i + ignore2;
+ ignore_done++;
+ continue;
+ }
+ }
+
+ }
+
+ if(memcmp(((char *)area1) + i, ((char *)area2) + i, 1) != 0){
+
+ /* Check pointer difference */
+ 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*)((xbt_mheap_t)s_heap)->heapbase) / BLOCKSIZE + 1;
+ block_pointed2 = ((char*)address_pointed2 - (char*)((xbt_mheap_t)s_heap)->heapbase) / BLOCKSIZE + 1;
+
+ /* Check if valid blocks number */
+ if((char *)address_pointed1 < (char*)((xbt_mheap_t)s_heap)->heapbase || block_pointed1 > heapsize1 || block_pointed1 < 1 || (char *)address_pointed2 < (char*)((xbt_mheap_t)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_block_pointed1 = ((void*) (((ADDR2UINT(block_pointed1)) - 1) * BLOCKSIZE + (char*)heapbase1));
+ addr_block_pointed2 = ((void*) (((ADDR2UINT(block_pointed2)) - 1) * BLOCKSIZE + (char*)heapbase2));
+
+ if(heapinfo1[block_pointed1].type == 0){ /* Large block */
+
+ if(heapinfo1[block_pointed1].busy_block.size != heapinfo2[block_pointed2].busy_block.size){
+ return 1;
+ }
+
+ 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(ignore_done < xbt_dynar_length(mc_comparison_ignore)){
+ if(in_mc_comparison_ignore(block_pointed1, -1))
+ res_compare = compare_area(addr_block_pointed1, addr_block_pointed2, heapinfo1[block_pointed1].busy_block.busy_size, previous, 1);
+ else
+ res_compare = compare_area(addr_block_pointed1, addr_block_pointed2, heapinfo1[block_pointed1].busy_block.busy_size, previous, 0);
+ }else{
+ res_compare = compare_area(addr_block_pointed1, addr_block_pointed2, heapinfo1[block_pointed1].busy_block.busy_size, previous, 0);
+ }
+
+ if(res_compare == 1)
+ return 1;
+
+ }
+
+ }else{ /* Fragmented block */
+
+ /* Get pointed fragments number */
+ 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;
+
+ addr_frag_pointed1 = (void*) ((char *)addr_block_pointed1 + (frag_pointed1 << heapinfo1[block_pointed1].type));
+ addr_frag_pointed2 = (void*) ((char *)addr_block_pointed2 + (frag_pointed2 << heapinfo2[block_pointed2].type));
+
+ if(add_heap_area_pair(previous, block_pointed1, frag_pointed1, block_pointed2, frag_pointed2)){
+
+ if(ignore_done < xbt_dynar_length(mc_comparison_ignore)){
+ if(in_mc_comparison_ignore(block_pointed1, frag_pointed1))
+ res_compare = compare_area(addr_frag_pointed1, addr_frag_pointed2, heapinfo1[block_pointed1].busy_frag.frag_size[frag_pointed1], previous, 1);
+ else
+ res_compare = compare_area(addr_frag_pointed1, addr_frag_pointed2, heapinfo1[block_pointed1].busy_frag.frag_size[frag_pointed1], previous, 0);
+ }else{
+ res_compare = compare_area(addr_frag_pointed1, addr_frag_pointed2, heapinfo1[block_pointed1].busy_frag.frag_size[frag_pointed1], previous, 0);
+ }
+
+ if(res_compare == 1)
+ return 1;
+
+ }
+
+ }
+
+ }else{
+
+ if((heapinfo1[block_pointed1].type > 0) && (heapinfo2[block_pointed2].type > 0)){
+
+ addr_block_pointed1 = ((void*) (((ADDR2UINT(block_pointed1)) - 1) * BLOCKSIZE + (char*)heapbase1));
+ addr_block_pointed2 = ((void*) (((ADDR2UINT(block_pointed2)) - 1) * BLOCKSIZE + (char*)heapbase2));
+
+ 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;
+
+ addr_frag_pointed1 = (void*) ((char *)addr_block_pointed1 + (frag_pointed1 << heapinfo1[block_pointed1].type));
+ addr_frag_pointed2 = (void*) ((char *)addr_block_pointed2 + (frag_pointed2 << heapinfo2[block_pointed2].type));
+
+ if(add_heap_area_pair(previous, block_pointed1, frag_pointed1, block_pointed2, frag_pointed2)){
+
+ if(ignore_done < xbt_dynar_length(mc_comparison_ignore)){
+ if(in_mc_comparison_ignore(block_pointed1, frag_pointed1))
+ res_compare = compare_area(addr_frag_pointed1, addr_frag_pointed2, heapinfo1[block_pointed1].busy_frag.frag_size[frag_pointed1], previous, 1);
+ else
+ res_compare = compare_area(addr_frag_pointed1, addr_frag_pointed2, heapinfo1[block_pointed1].busy_frag.frag_size[frag_pointed1], previous, 0);
+ }else{
+ res_compare = compare_area(addr_frag_pointed1, addr_frag_pointed2, heapinfo1[block_pointed1].busy_frag.frag_size[frag_pointed1], previous, 0);
+ }
+
+ if(res_compare == 1)
+ return 1;
+
+ }
+
+ }else{
+ return 1;
+ }
+
+ }
+
+ i = pointer_align + sizeof(void *);
+
+ }else{
+
+ i++;
+
+ }
}
- if(mdp1->heaplimit != mdp2->heaplimit){
- fprintf(stderr,"Different limit of valid info table indices\n");
- return 1;
+ return 0;
+
+
+}
+
+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);
+}
+
+static int add_heap_area_pair(xbt_dynar_t list, int block1, int fragment1, int block2, int fragment2){
+
+ 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);
- 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;
+ 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;
+
+ 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;
}
+
+ return 1;
+}
+static void match_equals(xbt_dynar_t list, xbt_dynar_t *equals){
- size_t i, j;
- void *addr_block1, *addr_block2, *addr_frag1, *addr_frag2;
- size_t frag_size;
+ unsigned int cursor = 0;
+ heap_area_pair_t current_pair;
+ heap_area_t previous_area;
- i = 0;
+ void *real_addr_block1, *real_addr_block2, *real_addr_frag1, *real_addr_frag2;
- /* Check busy blocks*/
+ xbt_dynar_foreach(list, cursor, current_pair){
- while(i < mdp1->heapindex){
+ if(current_pair->fragment1 != -1){
- if(mdp1->heapinfo[i].type != mdp2->heapinfo[i].type){
- fprintf(stderr,"Different type of block : %d - %d\n", mdp1->heapinfo[i].type, mdp2->heapinfo[i].type);
- errors++;
- }
+ real_addr_block1 = ((void*) (((ADDR2UINT((size_t)current_pair->block1)) - 1) * BLOCKSIZE + (char*)((xbt_mheap_t)s_heap)->heapbase));
+ real_addr_frag1 = (void*) ((char *)real_addr_block1 + (current_pair->fragment1 << heapinfo1[current_pair->block1].type));
+ real_addr_block2 = ((void*) (((ADDR2UINT((size_t)current_pair->block2)) - 1) * BLOCKSIZE + (char*)((xbt_mheap_t)s_heap)->heapbase));
+ real_addr_frag2 = (void*) ((char *)real_addr_block2 + (current_pair->fragment2 << heapinfo2[current_pair->block2].type));
- addr_block1 = (char *)mdp1 + sizeof(struct mdesc) + (i * BLOCKSIZE);
- addr_block2 = (char *)mdp2 + sizeof(struct mdesc) + (i * BLOCKSIZE);
+ if(heapinfo1[current_pair->block1].busy_frag.equal_to[current_pair->fragment1] != NULL){
+ remove_heap_equality(equals, 1, real_addr_frag1);
+ previous_area = heapinfo1[current_pair->block1].busy_frag.equal_to[current_pair->fragment1];
+ xbt_free( heapinfo2[previous_area->block].busy_frag.equal_to[previous_area->fragment]);
+ heapinfo2[previous_area->block].busy_frag.equal_to[previous_area->fragment] = NULL;
+ xbt_free(heapinfo1[current_pair->block1].busy_frag.equal_to[current_pair->fragment1]);
+ }
+ if(heapinfo2[current_pair->block2].busy_frag.equal_to[current_pair->fragment2] != NULL){
+ remove_heap_equality(equals, 2, real_addr_frag2);
+ previous_area = heapinfo2[current_pair->block2].busy_frag.equal_to[current_pair->fragment2];
+ xbt_free(heapinfo1[previous_area->block].busy_frag.equal_to[previous_area->fragment]);
+ heapinfo1[previous_area->block].busy_frag.equal_to[previous_area->fragment] = NULL;
+ xbt_free(heapinfo2[current_pair->block2].busy_frag.equal_to[current_pair->fragment2]);
+ }
+
+ if(real_addr_frag1 != real_addr_frag2)
+ add_heap_equality(equals, real_addr_frag1, real_addr_frag2);
- if(mdp1->heapinfo[i].type == 0){ /* busy large block */
+ heapinfo1[current_pair->block1].busy_frag.equal_to[current_pair->fragment1] = new_heap_area(current_pair->block2, current_pair->fragment2);
+ heapinfo2[current_pair->block2].busy_frag.equal_to[current_pair->fragment2] = new_heap_area(current_pair->block1, current_pair->fragment1);
- 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++;
- }
+ }else{
- 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++;
- }
+ real_addr_block1 = ((void*) (((ADDR2UINT((size_t)current_pair->block1)) - 1) * BLOCKSIZE + (char*)((xbt_mheap_t)s_heap)->heapbase));
+ real_addr_block2 = ((void*) (((ADDR2UINT((size_t)current_pair->block2)) - 1) * BLOCKSIZE + (char*)((xbt_mheap_t)s_heap)->heapbase));
- if(memcmp(addr_block1, addr_block2, (mdp1->heapinfo[i].busy_block.busy_size)) != 0){
- fprintf(stderr,"Different 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);
- //fprintf(stderr, "Backtrace size : %d\n", mdp1->heapinfo[i].busy_block.bt_size);
- mmalloc_backtrace_block_display(mdp1, i);
- errors++;
+ if(heapinfo1[current_pair->block1].busy_block.equal_to != NULL){
+ remove_heap_equality(equals, 1, real_addr_block1);
+ previous_area = heapinfo1[current_pair->block1].busy_block.equal_to;
+ xbt_free(heapinfo2[previous_area->block].busy_block.equal_to);
+ heapinfo2[previous_area->block].busy_block.equal_to = NULL;
+ xbt_free(heapinfo1[current_pair->block1].busy_block.equal_to);
}
+ if(heapinfo2[current_pair->block2].busy_block.equal_to != NULL){
+ remove_heap_equality(equals, 2, real_addr_block2);
+ previous_area = heapinfo2[current_pair->block2].busy_block.equal_to;
+ xbt_free(heapinfo1[previous_area->block].busy_block.equal_to);
+ heapinfo1[previous_area->block].busy_block.equal_to = NULL;
+ xbt_free(heapinfo2[current_pair->block2].busy_block.equal_to);
+ }
+
+ if(real_addr_block1 != real_addr_block2)
+ add_heap_equality(equals, real_addr_block1, real_addr_block2);
- //fprintf(stderr, "Backtrace size : %d\n", mdp1->heapinfo[i].busy_block.bt_size);
- //mmalloc_backtrace_block_display(mdp1, i);
-
- i = i + mdp1->heapinfo[i].busy_block.size;
+ heapinfo1[current_pair->block1].busy_block.equal_to = new_heap_area(current_pair->block2, current_pair->fragment2);
+ heapinfo2[current_pair->block2].busy_block.equal_to = new_heap_area(current_pair->block1, current_pair->fragment1);
- }else{
-
- if(mdp1->heapinfo[i].type > 0){ /* busy fragmented block */
+ }
+ }
+
+
+}
+
+#ifndef max
+#define max( a, b ) ( ((a) > (b)) ? (a) : (b) )
+#endif
+
+int mmalloc_linear_compare_heap(xbt_mheap_t heap1, xbt_mheap_t heap2){
+
+ if(heap1 == NULL && heap1 == NULL){
+ XBT_DEBUG("Malloc descriptors null");
+ return 0;
+ }
+
+ if(heap1->heaplimit != heap2->heaplimit){
+ XBT_DEBUG("Different limit of valid info table indices");
+ return 1;
+ }
+
+ /* Heap information */
+ heaplimit = ((struct mdesc *)heap1)->heaplimit;
- 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++;
- }
+ s_heap = (char *)mmalloc_get_current_heap() - STD_HEAP_SIZE - getpagesize();
- 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++;
- }
+ heapbase1 = (char *)heap1 + BLOCKSIZE;
+ heapbase2 = (char *)heap2 + BLOCKSIZE;
- frag_size = pow(2, mdp1->heapinfo[i].type);
+ heapinfo1 = (malloc_info *)((char *)heap1 + ((uintptr_t)((char *)heap1->heapinfo - (char *)s_heap)));
+ heapinfo2 = (malloc_info *)((char *)heap2 + ((uintptr_t)((char *)heap2->heapinfo - (char *)s_heap)));
- for(j=0; j< (BLOCKSIZE/frag_size); j++){
+ heapsize1 = heap1->heapsize;
+ heapsize2 = heap2->heapsize;
- 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 : %u - %u\n", j, i, mdp1->heapinfo[i].busy_frag.frag_size[j], mdp2->heapinfo[i].busy_frag.frag_size[j]);
- errors++;
- }
+ /* Start comparison */
+ size_t i, j, k;
+ void *addr_block1, *addr_block2, *addr_frag1, *addr_frag2;
+
+ int distance = 0;
- 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);
+ /* Check busy blocks*/
- if(memcmp(addr_frag1, addr_frag2, mdp1->heapinfo[i].busy_frag.frag_size[j]) != 0){
- fprintf(stderr,"Different data in fragment %zu (size = %zu, size used = %u) in block %zu \n", j, frag_size, mdp1->heapinfo[i].busy_frag.frag_size[j], i);
- errors++;
- }
+ i = 1;
- }
- }
+ while(i <= heaplimit){
- i++;
+ addr_block1 = ((void*) (((ADDR2UINT(i)) - 1) * BLOCKSIZE + (char*)heapbase1));
+ addr_block2 = ((void*) (((ADDR2UINT(i)) - 1) * BLOCKSIZE + (char*)heapbase2));
- }else{ /* free block */
+ if(heapinfo1[i].type != heapinfo2[i].type){
+
+ distance += BLOCKSIZE;
+ XBT_DEBUG("Different type of blocks (%zu) : %d - %d -> distance = %d", i, heapinfo1[i].type, heapinfo2[i].type, distance);
+ i++;
+
+ }else{
+
+ if(heapinfo1[i].type == -1){ /* Free block */
+ i++;
+ continue;
+ }
- i++;
+ if(heapinfo1[i].type == 0){ /* Large block */
+
+ if(heapinfo1[i].busy_block.size != heapinfo2[i].busy_block.size){
+ distance += BLOCKSIZE * max(heapinfo1[i].busy_block.size, heapinfo2[i].busy_block.size);
+ i += max(heapinfo1[i].busy_block.size, heapinfo2[i].busy_block.size);
+ XBT_DEBUG("Different larger of cluster at block %zu : %zu - %zu -> distance = %d", i, heapinfo1[i].busy_block.size, heapinfo2[i].busy_block.size, distance);
+ continue;
+ }
+
+ /*if(heapinfo1[i].busy_block.busy_size != heapinfo2[i].busy_block.busy_size){
+ distance += max(heapinfo1[i].busy_block.busy_size, heapinfo2[i].busy_block.busy_size);
+ i += max(heapinfo1[i].busy_block.size, heapinfo2[i].busy_block.size);
+ XBT_DEBUG("Different size used oin large cluster at block %zu : %zu - %zu -> distance = %d", i, heapinfo1[i].busy_block.busy_size, heapinfo2[i].busy_block.busy_size, distance);
+ continue;
+ }*/
+
+ k = 0;
+
+ //while(k < (heapinfo1[i].busy_block.busy_size)){
+ while(k < heapinfo1[i].busy_block.size * BLOCKSIZE){
+ if(memcmp((char *)addr_block1 + k, (char *)addr_block2 + k, 1) != 0){
+ distance ++;
+ }
+ k++;
+ }
+
+ i++;
+
+ }else { /* Fragmented block */
+
+ for(j=0; j < (size_t) (BLOCKSIZE >> heapinfo1[i].type); j++){
+
+ addr_frag1 = (void*) ((char *)addr_block1 + (j << heapinfo1[i].type));
+ addr_frag2 = (void*) ((char *)addr_block2 + (j << heapinfo2[i].type));
+
+ if(heapinfo1[i].busy_frag.frag_size[j] == 0 && heapinfo2[i].busy_frag.frag_size[j] == 0){
+ continue;
+ }
+
+
+ /*if(heapinfo1[i].busy_frag.frag_size[j] != heapinfo2[i].busy_frag.frag_size[j]){
+ distance += max(heapinfo1[i].busy_frag.frag_size[j], heapinfo2[i].busy_frag.frag_size[j]);
+ XBT_DEBUG("Different size used in fragment %zu in block %zu : %d - %d -> distance = %d", j, i, heapinfo1[i].busy_frag.frag_size[j], heapinfo2[i].busy_frag.frag_size[j], distance);
+ continue;
+ }*/
+
+ k=0;
+
+ //while(k < max(heapinfo1[i].busy_frag.frag_size[j], heapinfo2[i].busy_frag.frag_size[j])){
+ while(k < (BLOCKSIZE / (BLOCKSIZE >> heapinfo1[i].type))){
+ if(memcmp((char *)addr_frag1 + k, (char *)addr_frag2 + k, 1) != 0){
+ distance ++;
+ }
+ k++;
+ }
+
+ }
+
+ i++;
}
}
+ return distance;
+
+}
+
+static char * is_stack(void *address){
+ unsigned int cursor = 0;
+ stack_region_t stack;
- return (errors);
+ xbt_dynar_foreach(stacks_areas, cursor, stack){
+ if(address == stack->address)
+ return stack->process_name;
+ }
+
+ return NULL;
}
+static void add_heap_equality(xbt_dynar_t *equals, void *a1, void *a2){
+
+ heap_equality_t he = xbt_new0(s_heap_equality_t, 1);
+ he->address1 = a1;
+ he->address2 = a2;
+
+ if(xbt_dynar_is_empty(*equals)){
-void mmalloc_display_info_heap(xbt_mheap_t h){
+ xbt_dynar_insert_at(*equals, 0, &he);
+
+ }else{
+
+ unsigned int cursor = 0;
+ int start = 0;
+ int end = xbt_dynar_length(*equals) - 1;
+ heap_equality_t current_equality = NULL;
+
+ while(start <= end){
+ cursor = (start + end) / 2;
+ current_equality = (heap_equality_t)xbt_dynar_get_as(*equals, cursor, heap_equality_t);
+ if(current_equality->address1 == a1){
+ if(current_equality->address2 == a2)
+ return;
+ if(current_equality->address2 < a2)
+ start = cursor + 1;
+ if(current_equality->address2 > a2)
+ end = cursor - 1;
+ }
+ if(current_equality->address1 < a1)
+ start = cursor + 1;
+ if(current_equality->address1 > a1)
+ end = cursor - 1;
+ }
+
+ if(current_equality->address1 < a1)
+ xbt_dynar_insert_at(*equals, cursor + 1 , &he);
+ else
+ xbt_dynar_insert_at(*equals, cursor, &he);
+
+ }
}
+static void remove_heap_equality(xbt_dynar_t *equals, int address, void *a){
+
+ unsigned int cursor = 0;
+ heap_equality_t current_equality;
+ int found = 0;
+
+ if(address == 1){
+
+ int start = 0;
+ int end = xbt_dynar_length(*equals) - 1;
+ while(start <= end && found == 0){
+ cursor = (start + end) / 2;
+ current_equality = (heap_equality_t)xbt_dynar_get_as(*equals, cursor, heap_equality_t);
+ if(current_equality->address1 == a)
+ found = 1;
+ if(current_equality->address1 < a)
+ start = cursor + 1;
+ if(current_equality->address1 > a)
+ end = cursor - 1;
+ }
+
+ if(found == 1)
+ xbt_dynar_remove_at(*equals, cursor, NULL);
+
+ }else{
+
+ xbt_dynar_foreach(*equals, cursor, current_equality){
+ if(current_equality->address2 == a){
+ found = 1;
+ break;
+ }
+ }
+
+ if(found == 1)
+ xbt_dynar_remove_at(*equals, cursor, NULL);
+
+ }
+
+
+}
+
+int is_free_area(void *area, xbt_mheap_t heap){
+
+ void *sheap = (char *)mmalloc_get_current_heap() - STD_HEAP_SIZE - getpagesize();
+ malloc_info *heapinfo = (malloc_info *)((char *)heap + ((uintptr_t)((char *)heap->heapinfo - (char *)sheap)));
+ size_t heapsize = heap->heapsize;
+
+ /* Get block number */
+ size_t block = ((char*)area - (char*)((xbt_mheap_t)sheap)->heapbase) / BLOCKSIZE + 1;
+ size_t fragment;
+
+ /* Check if valid block number */
+ if((char *)area < (char*)((xbt_mheap_t)sheap)->heapbase || block > heapsize || block < 1)
+ return 0;
+
+ if(heapinfo[block].type < 0)
+ return 1;
+
+ if(heapinfo[block].type == 0)
+ return 0;
+
+ if(heapinfo[block].type > 0){
+ fragment = ((uintptr_t) (ADDR2UINT(area) % (BLOCKSIZE))) >> heapinfo[block].type;
+ if(heapinfo[block].busy_frag.frag_size[fragment] == 0)
+ return 1;
+ }
+
+ return 0;
+
+
+
+}
