Write a C program that prints Hello world! or another simple message, then reads a text file into a buffer on the heap, sets a global integer to the number of bytes read, and then goes into a wait state for a very long time instead of exiting (the sleep() function from unistd.h is a good way of doing this). Compile it into a dynamically linked ELF library (this is the default and you dont have to do anything special). Then run three processes in the background for this C program and investigate them through the command line and /proc interface to answer the following question:

Question: For the three processes that were created, look at their virtual address spaces and the different mappings. Which ones are likely unique to each process and which ones are likely pointing to the same physical pages of memory? How do you know? What similarities and differences do you notice from one process to another for the same binary?