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Subject: Re: ARM backtrace

Re: ARM backtrace

From: Marcin Bukat <marcin.bukat_at_gmail.com>
Date: Sat, 1 Oct 2011 14:13:16 +0200

2011/10/1 Torne Wuff <torne+rockboxdev_at_wolfpuppy.org.uk>:
> 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
>

5596 bytes (rk27xx build)
Received on 2011-10-01


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