Determining stack overflow by writing to a stack in a startup file

[morpho]

I'm trying to detect stack overflow. One approach that I found online was to prefill the memory with a constant value before the program runs, and see how much of the stack has been overwritten.

So now that I've been looking into it:

• is ses_startup_common.s the startup file that initializes the RAM and calls main? (seems to be but making sure)

• STACK_INIT_VAL contains the address of the stack pointer when the program starts, yes? What's

  __RAM1_segment_end__ equal to?

• how do we go about filling the stack memory with some value? is it mainly loading the value into a general purpose register i.e R2?

Thanks

[morpho]

Assembly and the startup file because you would want to write to the stack before the main is called, and track how much is being used by looking at the bits in memory