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Tool for visualizing the traced debug data from the ETB. #20

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HokageM opened this issue Mar 14, 2024 · 1 comment

HokageM commented Mar 14, 2024

Can you recommend a tool for visualizing the traced debug data from the ETB?

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algrant-arm commented Mar 20, 2024

If you mean turn trace data into a trace of instructions, then right now, your best options might be:

use the ETM packet decoder from https://github.com/Linaro/OpenCSD and build something around it to retrieve the instructions from the ELF files (which is what Linux perf does when it's got buffers full of ETM)
import the trace into a debugger like ArmDS - CSAL has some example code for generating a trace snapshot in DS format, basically a directory with trace buffer contents and some .INI files describing it - see cs_util_create_snapshot.c

It depends what you're after. ETM is very complex to decode, but ITM (Cortex-M instrumentation trace) is much simpler.

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