[J-core] Debug jump log?
D. Jeff Dionne
Jeff at SE-Instruments.com
Sat Feb 25 19:40:53 EST 2017
On Feb 26, 2017, at 09:00, Rob Landley <rob at landley.net> wrote:
> How do you reconstruct "three functions back we did fifty-seven iterations of the loop that decided where to go next"?
You just reconstruct the jump log from the trace. A register doesn't help you with any of this, you need an external interface. If you're really (only) interested in looking at the 9k instruction cycles for interrupts, the better approach is gprof.
A trace log system is for reconstructing whole program flows, including things like stalls and cache misses...
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