Tool for visualizing the traced debug data from the ETB. - Githubissues

ARM-software / CSAL

Coresight Access Library

Other

107 stars 42 forks source link

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

Open HokageM opened 3 months ago

HokageM commented 3 months ago

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

algrant-arm commented 3 months ago

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.