1 /* Copyright (c) 2008-2013 Da SimGrid Team. All rights reserved. */
3 /* This program is free software; you can redistribute it and/or modify it
4 * under the terms of the license (GNU LGPL) which comes with this package. */
7 #include "mc_private.h"
8 #include "xbt/module.h"
10 #include "../simix/smx_private.h"
12 #include <libunwind.h>
14 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_checkpoint, mc,
15 "Logging specific to mc_checkpoint");
17 void *start_text_libsimgrid;
18 void *start_plt_libsimgrid, *end_plt_libsimgrid;
19 void *start_got_plt_libsimgrid, *end_got_plt_libsimgrid;
20 void *start_plt_binary, *end_plt_binary;
21 void *start_got_plt_binary, *end_got_plt_binary;
22 char *libsimgrid_path;
23 void *start_data_libsimgrid, *start_bss_libsimgrid;
24 void *start_data_binary, *start_bss_binary;
25 void *start_text_binary;
27 static mc_mem_region_t MC_region_new(int type, void *start_addr, size_t size);
28 static void MC_region_restore(mc_mem_region_t reg);
29 static void MC_region_destroy(mc_mem_region_t reg);
31 static void MC_snapshot_add_region(mc_snapshot_t snapshot, int type, void *start_addr, size_t size);
33 static void add_value(xbt_dynar_t *list, const char *type, unsigned long int val);
34 static xbt_dynar_t take_snapshot_stacks(mc_snapshot_t *s, void *heap);
35 static xbt_strbuff_t get_local_variables_values(void *stack_context, void *heap);
36 static void print_local_variables_values(xbt_dynar_t all_variables);
37 static void *get_stack_pointer(void *stack_context, void *heap);
39 static void snapshot_stack_free(mc_snapshot_stack_t s);
40 static xbt_dynar_t take_snapshot_ignore(void);
42 static void get_hash_global(char *snapshot_hash, void *data1, void *data2);
43 static void get_hash_local(char *snapshot_hash, xbt_dynar_t stacks);
45 static mc_mem_region_t MC_region_new(int type, void *start_addr, size_t size)
47 mc_mem_region_t new_reg = xbt_new0(s_mc_mem_region_t, 1);
48 new_reg->start_addr = start_addr;
50 new_reg->data = xbt_malloc0(size);
51 memcpy(new_reg->data, start_addr, size);
53 XBT_DEBUG("New region : type : %d, data : %p (real addr %p), size : %zu", type, new_reg->data, start_addr, size);
58 static void MC_region_restore(mc_mem_region_t reg)
60 /*FIXME: check if start_addr is still mapped, if it is not, then map it
61 before copying the data */
63 memcpy(reg->start_addr, reg->data, reg->size);
68 static void MC_region_destroy(mc_mem_region_t reg)
74 static void MC_snapshot_add_region(mc_snapshot_t snapshot, int type, void *start_addr, size_t size)
76 mc_mem_region_t new_reg = MC_region_new(type, start_addr, size);
77 snapshot->regions[type] = new_reg;
81 static void get_memory_regions(mc_snapshot_t snapshot){
88 char *lfields[6] = {0}, *tok;
89 void *start_addr, *start_addr1, *end_addr;
93 fp = fopen("/proc/self/maps", "r");
96 "Cannot open /proc/self/maps to investigate the memory map of the process. Please report this bug.");
100 while((read = xbt_getline(&line, &n, fp)) != -1){
102 /* Wipeout the new line character */
103 line[read - 1] = '\0';
105 /* Tokenize the line using spaces as delimiters and store each token */
106 lfields[0] = strtok(line, " ");
108 for (i = 1; i < 6 && lfields[i - 1] != NULL; i++) {
109 lfields[i] = strtok(NULL, " ");
112 /* First get the permissions flags, need write permission */
113 if(lfields[1][1] == 'w'){
115 /* Get the start address of the map */
116 tok = strtok(lfields[0], "-");
117 start_addr = (void *)strtoul(tok, NULL, 16);
119 if(start_addr == std_heap){ /* Std_heap ? */
120 tok = strtok(NULL, "-");
121 end_addr = (void *)strtoul(tok, NULL, 16);
122 MC_snapshot_add_region(snapshot, 0, start_addr, (char*)end_addr - (char*)start_addr);
123 snapshot->heap_bytes_used = mmalloc_get_bytes_used(std_heap);
124 }else{ /* map name == libsimgrid || binary_name ? */
125 if(lfields[5] != NULL){
126 if(!memcmp(basename(lfields[5]), "libsimgrid", 10)){
127 tok = strtok(NULL, "-");
128 end_addr = (void *)strtoul(tok, NULL, 16);
129 size = (char*)end_addr - (char*)start_addr;
130 /* BSS and data segments may be separated according to the OS */
131 if((read = xbt_getline(&line, &n, fp)) != -1){
132 line[read - 1] = '\0';
133 lfields[0] = strtok(line, " ");
134 for (i = 1; i < 6 && lfields[i - 1] != NULL; i++) {
135 lfields[i] = strtok(NULL, " ");
137 if(lfields[1][1] == 'w' && lfields[5] == NULL){
138 tok = strtok(lfields[0], "-");
139 start_addr1 = (void *)strtoul(tok, NULL, 16);
140 tok = strtok(NULL, "-");
141 size += (char *)(void *)strtoul(tok, NULL, 16) - (char*)start_addr1;
144 MC_snapshot_add_region(snapshot, 1, start_addr, size);
145 }else if(!memcmp(basename(lfields[5]), basename(xbt_binary_name), strlen(basename(xbt_binary_name)))){
146 tok = strtok(NULL, "-");
147 end_addr = (void *)strtoul(tok, NULL, 16);
148 size = (char*)end_addr - (char*)start_addr;
149 /* BSS and data segments may be separated according to the OS */
150 if((read = xbt_getline(&line, &n, fp)) != -1){
151 line[read - 1] = '\0';
152 lfields[0] = strtok(line, " ");
153 for (i = 1; i < 6 && lfields[i - 1] != NULL; i++) {
154 lfields[i] = strtok(NULL, " ");
156 tok = strtok(lfields[0], "-");
157 start_addr1 = (void *)strtoul(tok, NULL, 16);
158 if(lfields[1][1] == 'w' && lfields[5] == NULL){
159 if(start_addr1 == std_heap){ /* Std_heap ? */
160 tok = strtok(NULL, "-");
161 end_addr = (void *)strtoul(tok, NULL, 16);
162 MC_snapshot_add_region(snapshot, 0, start_addr1, (char*)end_addr - (char*)start_addr1);
163 snapshot->heap_bytes_used = mmalloc_get_bytes_used(std_heap);
164 }else if(start_addr1 != raw_heap){
165 tok = strtok(NULL, "-");
166 size += (char *)(void *)strtoul(tok, NULL, 16) - (char *)start_addr1;
170 MC_snapshot_add_region(snapshot, 2, start_addr, size);
171 }else if (!memcmp(lfields[5], "[stack]", 7)){
172 maestro_stack_start = start_addr;
173 tok = strtok(NULL, "-");
174 maestro_stack_end = (void *)strtoul(tok, NULL, 16);
187 void MC_init_memory_map_info(){
191 memory_map_t maps = get_memory_map();
193 while (i < maps->mapsize) {
194 reg = maps->regions[i];
195 if ((reg.prot & PROT_WRITE)){
196 if (maps->regions[i].pathname != NULL){
197 if (!memcmp(basename(maps->regions[i].pathname), "libsimgrid", 10)){
198 start_data_libsimgrid = reg.start_addr;
200 reg = maps->regions[i];
201 if(reg.pathname == NULL && (reg.prot & PROT_WRITE) && i < maps->mapsize)
202 start_bss_libsimgrid = reg.start_addr;
203 }else if (!memcmp(basename(maps->regions[i].pathname), basename(xbt_binary_name), strlen(basename(xbt_binary_name)))){
204 start_data_binary = reg.start_addr;
206 reg = maps->regions[i];
207 if(reg.pathname == NULL && (reg.prot & PROT_WRITE) && reg.start_addr != std_heap && reg.start_addr != raw_heap && i < maps->mapsize){
208 start_bss_binary = reg.start_addr;
211 }else if(!memcmp(maps->regions[i].pathname, "[stack]", 7)){
212 maestro_stack_start = reg.start_addr;
213 maestro_stack_end = reg.end_addr;
217 }else if ((reg.prot & PROT_READ) && (reg.prot & PROT_EXEC)){
218 if (maps->regions[i].pathname != NULL){
219 if (!memcmp(basename(maps->regions[i].pathname), "libsimgrid", 10)){
220 start_text_libsimgrid = reg.start_addr;
221 libsimgrid_path = strdup(maps->regions[i].pathname);
222 }else if (!memcmp(basename(maps->regions[i].pathname), basename(xbt_binary_name), strlen(basename(xbt_binary_name)))){
223 start_text_binary = reg.start_addr;
230 free_memory_map(maps);
234 mc_snapshot_t MC_take_snapshot()
237 int raw_mem = (mmalloc_get_current_heap() == raw_heap);
241 mc_snapshot_t snapshot = xbt_new0(s_mc_snapshot_t, 1);
242 snapshot->nb_processes = xbt_swag_size(simix_global->process_list);
244 /* Save the std heap and the writable mapped pages of libsimgrid and binary */
245 get_memory_regions(snapshot);
247 snapshot->to_ignore = take_snapshot_ignore();
249 if(_sg_mc_visited > 0 || strcmp(_sg_mc_property_file,"")){
250 snapshot->stacks = take_snapshot_stacks(&snapshot, snapshot->regions[0]->data);
251 get_hash_global(snapshot->hash_global, snapshot->regions[1]->data, snapshot->regions[2]->data);
252 get_hash_local(snapshot->hash_local, snapshot->stacks);
264 void MC_restore_snapshot(mc_snapshot_t snapshot)
267 for(i=0; i < NB_REGIONS; i++){
268 MC_region_restore(snapshot->regions[i]);
273 void MC_free_snapshot(mc_snapshot_t snapshot)
276 for(i=0; i < NB_REGIONS; i++)
277 MC_region_destroy(snapshot->regions[i]);
279 xbt_free(snapshot->stack_sizes);
280 xbt_dynar_free(&(snapshot->stacks));
281 xbt_dynar_free(&(snapshot->to_ignore));
286 void get_libsimgrid_plt_section(){
289 char *line = NULL; /* Temporal storage for each line that is readed */
290 ssize_t read; /* Number of bytes readed */
291 size_t n = 0; /* Amount of bytes to read by xbt_getline */
294 int i, plt_found = 0;
295 unsigned long int size, offset;
297 char *command = bprintf("objdump --section-headers %s", libsimgrid_path);
299 fp = popen(command, "r");
302 perror("popen failed");
306 while ((read = xbt_getline(&line, &n, fp)) != -1 && plt_found != 2) {
311 /* Wipeout the new line character */
312 line[read - 1] = '\0';
314 lfields[0] = strtok(line, " ");
316 if(lfields[0] == NULL)
319 if(strcmp(lfields[0], "Sections:") == 0 || strcmp(lfields[0], "Idx") == 0 || strncmp(lfields[0], libsimgrid_path, strlen(libsimgrid_path)) == 0)
322 for (i = 1; i < 7 && lfields[i - 1] != NULL; i++) {
323 lfields[i] = strtok(NULL, " ");
327 if(strcmp(lfields[1], ".plt") == 0){
328 size = strtoul(lfields[2], NULL, 16);
329 offset = strtoul(lfields[5], NULL, 16);
330 start_plt_libsimgrid = (char *)start_text_libsimgrid + offset;
331 end_plt_libsimgrid = (char *)start_plt_libsimgrid + size;
333 }else if(strcmp(lfields[1], ".got.plt") == 0){
334 size = strtoul(lfields[2], NULL, 16);
335 offset = strtoul(lfields[5], NULL, 16);
336 start_got_plt_libsimgrid = (char *)start_text_libsimgrid + offset;
337 end_got_plt_libsimgrid = (char *)start_got_plt_libsimgrid + size;
351 void get_binary_plt_section(){
354 char *line = NULL; /* Temporal storage for each line that is readed */
355 ssize_t read; /* Number of bytes readed */
356 size_t n = 0; /* Amount of bytes to read by xbt_getline */
359 int i, plt_found = 0;
360 unsigned long int size;
362 char *command = bprintf( "objdump --section-headers %s", xbt_binary_name);
364 fp = popen(command, "r");
367 perror("popen failed");
371 while ((read = xbt_getline(&line, &n, fp)) != -1 && plt_found != 2) {
376 /* Wipeout the new line character */
377 line[read - 1] = '\0';
379 lfields[0] = strtok(line, " ");
381 if(lfields[0] == NULL)
384 if(strcmp(lfields[0], "Sections:") == 0 || strcmp(lfields[0], "Idx") == 0 || strncmp(lfields[0], basename(xbt_binary_name), strlen(xbt_binary_name)) == 0)
387 for (i = 1; i < 7 && lfields[i - 1] != NULL; i++) {
388 lfields[i] = strtok(NULL, " ");
392 if(strcmp(lfields[1], ".plt") == 0){
393 size = strtoul(lfields[2], NULL, 16);
394 start_plt_binary = (void *)strtoul(lfields[3], NULL, 16);
395 end_plt_binary = (char *)start_plt_binary + size;
397 }else if(strcmp(lfields[1], ".got.plt") == 0){
398 size = strtoul(lfields[2], NULL, 16);
399 start_got_plt_binary = (char *)strtoul(lfields[3], NULL, 16);
400 end_got_plt_binary = (char *)start_got_plt_binary + size;
414 static void add_value(xbt_dynar_t *list, const char *type, unsigned long int val){
415 variable_value_t value = xbt_new0(s_variable_value_t, 1);
416 value->type = strdup(type);
417 if(strcmp(type, "value") == 0){
418 value->value.res = val;
420 value->value.address = (void *)val;
422 xbt_dynar_push(*list, &value);
425 static xbt_dynar_t take_snapshot_stacks(mc_snapshot_t *snapshot, void *heap){
427 xbt_dynar_t res = xbt_dynar_new(sizeof(s_mc_snapshot_stack_t), snapshot_stack_free_voidp);
429 unsigned int cursor = 0;
430 stack_region_t current_stack;
432 xbt_dynar_foreach(stacks_areas, cursor, current_stack){
433 mc_snapshot_stack_t st = xbt_new(s_mc_snapshot_stack_t, 1);
434 st->local_variables = get_local_variables_values(current_stack->context, heap);
435 st->stack_pointer = get_stack_pointer(current_stack->context, heap);
436 xbt_dynar_push(res, &st);
437 (*snapshot)->stack_sizes = xbt_realloc((*snapshot)->stack_sizes, (cursor + 1) * sizeof(size_t));
438 (*snapshot)->stack_sizes[cursor] = current_stack->size - ((char *)st->stack_pointer - (char *)((char *)heap + ((char *)current_stack->address - (char *)std_heap)));
445 static void *get_stack_pointer(void *stack_context, void *heap){
451 ret = unw_init_local(&c, (unw_context_t *)stack_context);
453 XBT_INFO("unw_init_local failed");
457 unw_get_reg(&c, UNW_REG_SP, &sp);
459 return ((char *)heap + (size_t)(((char *)((long)sp) - (char*)std_heap)));
463 static xbt_strbuff_t get_local_variables_values(void *stack_context, void *heap){
468 char frame_name[256];
470 ret = unw_init_local(&c, (unw_context_t *)stack_context);
472 XBT_INFO("unw_init_local failed");
476 unw_word_t ip, sp, off;
479 xbt_dynar_t compose = xbt_dynar_new(sizeof(variable_value_t), variable_value_free_voidp);
481 xbt_strbuff_t variables = xbt_strbuff_new();
482 xbt_dict_cursor_t dict_cursor;
484 dw_local_variable_t current_variable;
485 unsigned int cursor = 0, cursor2 = 0;
486 dw_location_entry_t entry = NULL;
487 dw_location_t location_entry = NULL;
490 void *frame_pointer_address = NULL;
496 unw_get_reg(&c, UNW_REG_IP, &ip);
497 unw_get_reg(&c, UNW_REG_SP, &sp);
499 unw_get_proc_name(&c, frame_name, sizeof (frame_name), &off);
501 frame = xbt_dict_get_or_null(mc_local_variables, frame_name);
504 xbt_dynar_free(&compose);
505 xbt_dict_cursor_free(&dict_cursor);
509 to_append = bprintf("frame_name=%s\n", frame_name);
510 xbt_strbuff_append(variables, to_append);
512 to_append = bprintf("ip=%lx\n", (unsigned long)ip);
513 xbt_strbuff_append(variables, to_append);
516 true_ip = (long)frame->low_pc + (long)off;
518 /* Get frame pointer */
519 switch(frame->frame_base->type){
521 while((cursor < xbt_dynar_length(frame->frame_base->location.loclist)) && frame_found == 0){
522 entry = xbt_dynar_get_as(frame->frame_base->location.loclist, cursor, dw_location_entry_t);
523 if((true_ip >= entry->lowpc) && (true_ip < entry->highpc)){
525 switch(entry->location->type){
527 xbt_dynar_reset(compose);
529 while(cursor2 < xbt_dynar_length(entry->location->location.compose)){
530 location_entry = xbt_dynar_get_as(entry->location->location.compose, cursor2, dw_location_t);
531 switch(location_entry->type){
533 unw_get_reg(&c, location_entry->location.reg, &res);
534 add_value(&compose, "address", (long)res);
536 case e_dw_bregister_op:
537 unw_get_reg(&c, location_entry->location.breg_op.reg, &res);
538 add_value(&compose, "address", (long)res + location_entry->location.breg_op.offset);
541 xbt_dynar_reset(compose);
547 if(!xbt_dynar_is_empty(compose)){
548 frame_pointer_address = xbt_dynar_get_as(compose, xbt_dynar_length(compose) - 1, variable_value_t)->value.address ;
549 xbt_dynar_reset(compose);
553 frame_pointer_address = NULL;
561 frame_pointer_address = NULL;
568 xbt_dict_foreach(frame->variables, dict_cursor, variable_name, current_variable){
569 if(current_variable->location != NULL){
570 switch(current_variable->location->type){
572 xbt_dynar_reset(compose);
574 while(cursor < xbt_dynar_length(current_variable->location->location.compose)){
575 location_entry = xbt_dynar_get_as(current_variable->location->location.compose, cursor, dw_location_t);
576 switch(location_entry->type){
578 unw_get_reg(&c, location_entry->location.reg, &res);
579 add_value(&compose, "value", (long)res);
581 case e_dw_bregister_op:
582 unw_get_reg(&c, location_entry->location.breg_op.reg, &res);
583 add_value(&compose, "address", (long)res + location_entry->location.breg_op.offset);
585 case e_dw_fbregister_op:
586 if(frame_pointer_address != NULL)
587 add_value(&compose, "address", (long)((char *)frame_pointer_address + location_entry->location.fbreg_op));
590 xbt_dynar_reset(compose);
596 if(!xbt_dynar_is_empty(compose)){
597 if(strcmp(xbt_dynar_get_as(compose, xbt_dynar_length(compose) - 1, variable_value_t)->type, "value") == 0){
598 to_append = bprintf("%s=%lx\n", current_variable->name, xbt_dynar_get_as(compose, xbt_dynar_length(compose) - 1, variable_value_t)->value.res);
599 xbt_strbuff_append(variables, to_append);
602 if((long)xbt_dynar_get_as(compose, xbt_dynar_length(compose) - 1,variable_value_t)->value.address < 0 || *((void**)xbt_dynar_get_as(compose, xbt_dynar_length(compose) - 1,variable_value_t)->value.address) == NULL){
603 to_append = bprintf("%s=NULL\n", current_variable->name);
604 xbt_strbuff_append(variables, to_append);
606 }else if(((long)*((void**)xbt_dynar_get_as(compose, xbt_dynar_length(compose) - 1,variable_value_t)->value.address) > 0xffffffff) || ((long)*((void**)xbt_dynar_get_as(compose, xbt_dynar_length(compose) - 1,variable_value_t)->value.address) < (long)start_text_binary)){
607 to_append = bprintf("%s=%u\n", current_variable->name, (unsigned int)(long)*((void**)xbt_dynar_get_as(compose, xbt_dynar_length(compose) - 1, variable_value_t)->value.address));
608 xbt_strbuff_append(variables, to_append);
611 to_append = bprintf("%s=%p\n", current_variable->name, *((void**)xbt_dynar_get_as(compose, xbt_dynar_length(compose) - 1, variable_value_t)->value.address));
612 xbt_strbuff_append(variables, to_append);
616 xbt_dynar_reset(compose);
618 to_append = bprintf("%s=undefined\n", current_variable->name);
619 xbt_strbuff_append(variables, to_append);
627 to_append = bprintf("%s=undefined\n", current_variable->name);
628 xbt_strbuff_append(variables, to_append);
637 xbt_dynar_free(&compose);
638 xbt_dict_cursor_free(&dict_cursor);
644 static void print_local_variables_values(xbt_dynar_t all_variables){
647 mc_snapshot_stack_t stack;
649 xbt_dynar_foreach(all_variables, cursor, stack){
650 XBT_INFO("%s", stack->local_variables->data);
655 static void snapshot_stack_free(mc_snapshot_stack_t s){
657 xbt_free(s->local_variables->data);
658 xbt_free(s->local_variables);
663 void snapshot_stack_free_voidp(void *s){
664 snapshot_stack_free((mc_snapshot_stack_t) * (void **) s);
667 mc_snapshot_t SIMIX_pre_mc_snapshot(smx_simcall_t simcall){
668 return MC_take_snapshot();
671 void *MC_snapshot(void){
673 return simcall_mc_snapshot();
677 void variable_value_free(variable_value_t v){
684 void variable_value_free_voidp(void* v){
685 variable_value_free((variable_value_t) * (void **)v);
688 static void get_hash_global(char *snapshot_hash, void *data1, void *data2){
690 unsigned int cursor = 0;
692 global_variable_t current_var;
693 void *addr_pointed = NULL;
696 xbt_strbuff_t clear = xbt_strbuff_new();
698 xbt_dynar_foreach(mc_global_variables, cursor, current_var){
699 if(current_var->address < start_data_libsimgrid){ /* binary */
700 offset = (char *)current_var->address - (char *)start_data_binary;
701 addr_pointed = *((void **)((char *)data2 + offset));
702 if(((addr_pointed >= start_plt_binary && addr_pointed <= end_plt_binary)) || ((addr_pointed >= std_heap && (char *)addr_pointed <= (char *)std_heap + STD_HEAP_SIZE )))
704 res = xbt_malloc0(current_var->size + 1);
705 memset(res, 0, current_var->size + 1);
706 memcpy(res, (char*)data2 + offset, current_var->size);
707 }else{ /* libsimgrid */
708 offset = (char *)current_var->address - (char *)start_data_libsimgrid;
709 addr_pointed = *((void **)((char *)data1 + offset));
710 if((addr_pointed >= start_plt_libsimgrid && addr_pointed <= end_plt_libsimgrid) || (addr_pointed >= std_heap && (char *)addr_pointed <= (char *)std_heap + STD_HEAP_SIZE ))
712 res = xbt_malloc0(current_var->size + 1);
713 memset(res, 0, current_var->size + 1);
714 memcpy(res, (char*)data1 + offset, current_var->size);
717 xbt_strbuff_append(clear, (const char*)res);
723 xbt_sha(clear->data, snapshot_hash);
725 xbt_strbuff_free(clear);
729 static void get_hash_local(char *snapshot_hash, xbt_dynar_t stacks){
731 xbt_dynar_t tokens = NULL, s_tokens = NULL;
732 unsigned int cursor1 = 0, cursor2 = 0;
733 mc_snapshot_stack_t current_stack;
734 char *frame_name = NULL;
737 xbt_strbuff_t clear = xbt_strbuff_new();
739 while(cursor1 < xbt_dynar_length(stacks)){
740 current_stack = xbt_dynar_get_as(stacks, cursor1, mc_snapshot_stack_t);
741 tokens = xbt_str_split(current_stack->local_variables->data, NULL);
743 while(cursor2 < xbt_dynar_length(tokens)){
744 s_tokens = xbt_str_split(xbt_dynar_get_as(tokens, cursor2, char *), "=");
745 if(xbt_dynar_length(s_tokens) > 1){
746 if(strcmp(xbt_dynar_get_as(s_tokens, 0, char *), "frame_name") == 0){
747 xbt_free(frame_name);
748 frame_name = xbt_strdup(xbt_dynar_get_as(s_tokens, 1, char *));
749 xbt_strbuff_append(clear, (const char*)xbt_dynar_get_as(tokens, cursor2, char *));
751 xbt_dynar_free(&s_tokens);
754 addr = (void *) strtoul(xbt_dynar_get_as(s_tokens, 1, char *), NULL, 16);
755 if(addr > std_heap && (char *)addr <= (char *)std_heap + STD_HEAP_SIZE){
757 xbt_dynar_free(&s_tokens);
760 if(is_stack_ignore_variable(frame_name, xbt_dynar_get_as(s_tokens, 0, char *))){
762 xbt_dynar_free(&s_tokens);
765 xbt_strbuff_append(clear, (const char *)xbt_dynar_get_as(tokens, cursor2, char *));
767 xbt_dynar_free(&s_tokens);
770 xbt_dynar_free(&tokens);
774 xbt_free(frame_name);
776 xbt_sha(clear->data, snapshot_hash);
778 xbt_strbuff_free(clear);
783 static xbt_dynar_t take_snapshot_ignore(){
785 if(mc_heap_comparison_ignore == NULL)
788 xbt_dynar_t cpy = xbt_dynar_new(sizeof(mc_heap_ignore_region_t), heap_ignore_region_free_voidp);
790 unsigned int cursor = 0;
791 mc_heap_ignore_region_t current_region;
793 xbt_dynar_foreach(mc_heap_comparison_ignore, cursor, current_region){
794 mc_heap_ignore_region_t new_region = NULL;
795 new_region = xbt_new0(s_mc_heap_ignore_region_t, 1);
796 new_region->address = current_region->address;
797 new_region->size = current_region->size;
798 new_region->block = current_region->block;
799 new_region->fragment = current_region->fragment;
800 xbt_dynar_push(cpy, &new_region);