Task: Modifying Memory Region Size

Navigate to the labs/lab-04/tasks/modify-areas/support directory.

1. Comment out different parts of the hello.c program to notice differences in only specific areas (text, data, bss, heap, stack).

2. Use a different argument (order) for the call to the alloc_stack() function. See how it affects the stack size during runtime (investigate with pmap).

3. Do a static build of hello.c and check the size of the memory areas, both statically and dynamically.

4. The extend_mem_area.py Python script allocates a new string at each step by merging the two previous versions. Start the program and investigate the resulting process at each allocation step. Notice which memory area is updated and explain why.

If you’re having difficulties solving this exercise, go through this reading material.