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Subject: Re: ARM backtrace

Re: ARM backtrace

From: Torne Wuff <torne+rockboxdev_at_wolfpuppy.org.uk>
Date: Sat, 1 Oct 2011 12:41:14 +0100

On 1 October 2011 10:32, Marcin Bukat <marcin.bukat_at_gmail.com> wrote:
> Hello folks,
> http://www.rockbox.org/tracker/task/12302 adds backtrace log to the
> panic screen on ARMs. This is simple port of
> http://www.mcternan.me.uk/ArmStackUnwinding/. The approach to take
> this backtrace is not perfect and has limitations BUT it doesn't need
> any special symbols or something to unwind stack frames. I am aware
> that the code itself would need some polish (unneeded typedefs, dos
> line ends etc.) but first I am interested if we want something like
> this at all. I played a bit with this inserting asm snippet causing
> data abort in various places and produced backtrace looked reasonable
> - still more tests needed.

Thanks for doing this! I'll experiment with it later, but for now I
was wondering if you've measured the binsize impact of it? I expect
it's small since that's the point of the original library, but I'm
curious exactly what it comes to on Rockbox.

-- 
Torne Wuff
torne_at_wolfpuppy.org.uk
Received on 2011-10-01

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