i have a project that requires to use global varibales an array for example, append to it some items and save this array using only the executable file (im not allowed to use other files ) modification should be done on the exe file .The only indication i have is to use "libelf" i tried to look at the structure of an elf file but im still not able to access global variables(data segment) and change them.plz i need some help tx in advance.