XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_checkpoint, mc,
"Logging specific to mc_checkpoint");
+void *start_text_libsimgrid;
+void *start_plt, *end_plt;
+char *libsimgrid_path;
+
static mc_mem_region_t MC_region_new(int type, void *start_addr, size_t size);
static void MC_region_restore(mc_mem_region_t reg);
static void MC_region_destroy(mc_mem_region_t reg);
}
}
}
+ }else if ((reg.prot & PROT_READ)){
+ if (maps->regions[i].pathname != NULL){
+ if (!memcmp(basename(maps->regions[i].pathname), "libsimgrid", 10)){
+ start_text_libsimgrid = reg.start_addr;
+ libsimgrid_path = strdup(maps->regions[i].pathname);
+ }
+ }
}
i++;
}
for(i=0; i<size; i++){
if(memcmp(((char *)d1) + i, ((char *)d2) + i, 1) != 0){
- XBT_DEBUG("Different byte (offset=%zu) (%p - %p) in data libsimgrid region", i, (char *)d1 + i, (char *)d2 + i);
pointer_align = (i / sizeof(void*)) * sizeof(void*);
addr_pointed1 = *((void **)((char *)d1 + pointer_align));
addr_pointed2 = *((void **)((char *)d2 + pointer_align));
- XBT_DEBUG("Addresses pointed : %p - %p", addr_pointed1, addr_pointed2);
- distance++;
+ if((addr_pointed1 > start_plt && addr_pointed1 < end_plt) || (addr_pointed2 > start_plt && addr_pointed2 < end_plt)){
+ continue;
+ }else{
+ XBT_DEBUG("Different byte (offset=%zu) (%p - %p) in data libsimgrid region", i, (char *)d1 + i, (char *)d2 + i);
+ XBT_DEBUG("Addresses pointed : %p - %p\n", addr_pointed1, addr_pointed2);
+ distance++;
+ }
}
}
}
+void get_plt_section(){
+
+ FILE *fp;
+ 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 */
+
+ char *lfields[7];
+ int i, plt_not_found = 1;
+ unsigned long int size, offset;
+
+ char *command = bprintf( "objdump --section-headers %s", libsimgrid_path);
+
+ fp = popen(command, "r");
+
+ if(fp == NULL)
+ perror("popen failed");
+
+ while ((read = getline(&line, &n, fp)) != -1 && plt_not_found == 1) {
+
+ if(n == 0)
+ continue;
+
+ /* Wipeout the new line character */
+ line[read - 1] = '\0';
+
+ lfields[0] = strtok(line, " ");
+
+ if(lfields[0] == NULL)
+ continue;
+
+ if(strcmp(lfields[0], "Sections:") == 0 || strcmp(lfields[0], "Idx") == 0 || strcmp(lfields[0], "libsimgrid.so:") == 0)
+ continue;
+
+ for (i = 1; i < 7 && lfields[i - 1] != NULL; i++) {
+ lfields[i] = strtok(NULL, " ");
+ }
+
+ if(i>=5){
+ if(strcmp(lfields[1], ".plt") == 0){
+ size = strtoul(lfields[2], NULL, 16);
+ offset = strtoul(lfields[4], NULL, 16);
+ start_plt = (char *)start_text_libsimgrid + offset;
+ end_plt = (char *)start_plt + size;
+ plt_not_found = 0;
+ }
+ }
+
+
+ }
+
+ free(command);
+ free(line);
+ pclose(fp);
+
+}
+