From: David Daney <ddaney.cavm@gmail.com>
To: Alex Smith <alex.smith@imgtec.com>
Cc: linux-mips@linux-mips.org
Subject: Re: VDSO
Date: Wed, 12 Aug 2015 09:14:38 -0700 [thread overview]
Message-ID: <55CB70EE.4080802@gmail.com> (raw)
In-Reply-To: <55CB1E0C.4070405@imgtec.com>
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
next prev parent reply other threads:[~2015-08-12 16:14 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-12 10:21 VDSO Alex Smith
2015-08-12 10:21 ` VDSO Alex Smith
2015-08-12 16:14 ` David Daney [this message]
2015-08-13 8:25 ` VDSO Alex Smith
2015-08-13 8:25 ` VDSO Alex Smith
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