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Date: Thu, 18 Sep 2008 18:34:00 -0000
From: Daniel Jacobowitz <dan@codesourcery.com>
To: "H.J. Lu" <hjl.tools@gmail.com>
Cc: GDB <gdb-patches@sourceware.org>
Subject: Re: PATCH: Extend gdb remote protocol for AVX
Message-ID: <20080918183402.GA22646@caradoc.them.org>
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References: <20080918172728.GA12703@lucon.org>
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On Thu, Sep 18, 2008 at 10:27:28AM -0700, H.J. Lu wrote:
>    b. If remote target supports AVX:
>       i. Don't send xmlarch.
>       ii. Replace 128bit xmm registers with 256bit ymm registers in
> 	  the g/G packet.
>       iii. Gdb will auto-detect SSE unit on remote target, based on the
> 	   the g/G packet size.

Just a general note: I would much prefer you use the XML mechanism for
this, either by an architecture name or a property or an explicit
register description, than add more guesses to the g/G packet checks;
they're a heuristic for existing remote targets.

-- 
Daniel Jacobowitz
CodeSourcery