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Date: Sat, 20 Feb 2021 01:54:54 -0500
From: Mike Frysinger <vapier@gentoo.org>
To: Howard Chu <hyc@symas.com>
Cc: mx <mxmxmx0429@qq.com>, gdb <gdb@sourceware.org>
Subject: Re: Is it possible to remote debug a multicore system of which each
 core has different instruction set arch?
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On 20 Feb 2021 02:46, Howard Chu wrote:
> mx via Gdb wrote:
> > Is it possible to remote debug a multicore system of which each core has different instruction set arch? For example if I have a two core chip, one core is cortex-m3, the other is riscv-i32. Or if I can debug multiple chip at the same time, each of which is different arch? I think this feature is important, since in the future there will be more debug situations like this.
> 
> If such a heterogeneous hardware system exists, the different cores will necessarily be running different
> OS images. So treat it as debugging two physically separate machines, nothing different from today.

fwiw, this situation isn't theoretical.  TI makes an ARM + C6X SoC
combo where both run Linux.
https://en.wikipedia.org/wiki/Texas_Instruments_DaVinci
-mike