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Date:   Wed, 12 Aug 2015 09:14:38 -0700
From:   David Daney <ddaney.cavm@gmail.com>
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To:     Alex Smith <alex.smith@imgtec.com>
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Subject: Re: VDSO
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On 08/12/2015 03:21 AM, Alex Smith wrote:
> Hi,
>
> I'm intending to start work on a proper VDSO implementation for MIPS that can provide user implementations of gettimeofday() and such, as well as take over from the current signal return trampoline code.
>
> Just wondering if there's anyone else who's doing any work towards this so we can avoid duplication of effort if so?
>

I am not working on it, but have a small laundry list of what could be done:

1) Perhaps the VA of the vdso needs to be randomized.

2) Provide proper .eh_frame data for the signal return trampolines.

3) gettimeofday (as you suggest).

4) Provide optimized versions of memcpy, etc.

David Daney