I have been working on a few programs now for the hifive1. Due to certain constraints on the exercise I am not allowed to use the heap. So most of my data is on the stack. This leads to the issue that the stack overflows. I have checked in the elf file produced by the linker, and noticed that the stack only has a size of 0x400, and the heap has a much larger space. Is there a way I can increase this stack size, and reduce the heap size for it.