Cross compilation/debugging?

Robert O'Callahan robert at ocallahan.org
Fri Aug 25 10:43:27 UTC 2017


On Fri, Aug 25, 2017 at 8:17 PM, Alejandro Exojo <alex at vikingsoft.eu> wrote:

> I have an embedded device that I would like to use with rr. It has an
> Intel 32 bit CPU, and is fairly speedy, but we only use cross
> compilation and debugging. It's possible that somebody on the team is
> using debugging directly on the target, since it even has gdb (not
> just gdbserver) installed on the image.
>
> I've searched on the mailing list archives and the issues on github,
> but I could not find anything relevant. I also have not found any
> Yocto recipe (i.e. "a ready made package"), so I would have to write
> my own.
>
> Before I do that, do you have any advice? Should I check first if the
> CPU is supported?


Yes. My guess is that it probably isn't supported...


> Is the file format for the recording portable,


It is possible to ship traces to another machine to replay if you build rr
master. Your destination machine will need Linux 4.12.

Rob
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