kevin@amdahl.uts.amdahl.com (Kevin Clague) (06/21/88)
[]
I have a program that is going into an infinte loop. I can't recreate
it on demand, so it is really hard to shoot. I also don't know where
the code is stuck. Can I write a program that
will look into another tasks stack and find out what the current PC is?
Since my query program is running at the time it is trying to query
the hung's program's stack, it must be ready to run,
so I presume a timer interrupt took the processor away from my infinite
loop program.
I know the address of the task's structure. Can I simply define a
structure that looks like a 68000 (or 680x0) stack frame, get the
stack pointer from the task structure, and use it as a pointer to the
the structure? Since the stack pointer is pointing to the next available
entry on the stack, I'll have to subtract the size of the stack frame
from from the pointer to get a pointer to the beginning of the interrupt
frame. Is this the right approach? If I get it working does anyone
else want a copy of it?
-kevin
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