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Date: Wed, 03 Feb 2010 14:05:00 -0000
Message-ID: <6dc9ffc81002030605k6eadda3me45828f7c8c6a362@mail.gmail.com>
Subject: Re: RFC: Support target specific qSupported
From: "H.J. Lu" <hjl.tools@gmail.com>
To: "H.J. Lu" <hjl.tools@gmail.com>, GDB <gdb-patches@sourceware.org>
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On Wed, Feb 3, 2010 at 5:58 AM, Daniel Jacobowitz <dan@codesourcery.com> wr=
ote:
> On Tue, Feb 02, 2010 at 08:03:39PM -0800, H.J. Lu wrote:
>> Hi,
>>
>> Intel AVX has 256bit YMM registers. XMM registers from SSE are the
>> aliases of the lower 128bit YMM registers. gdbserver on AVX machine
>> may use 256bit vector registers, instead of 128bit vector registers,
>> in the g/G packet. =A0When gdb talks to gdbserver, they need to negotiate
>> to find out the maxium common register size supported by both gdb and
>> gdbserver. I added `x86:xstate=3DBYTES:xcr0=3DVALUE' to qSupported:
>
> Have you seen the Target Descriptions chapter in the manual? =A0This is
> exactly what it was designed to do.
>

Which gdb target does similar things I need for AVX?

Thanks.

--=20
H.J.