linux-kernel - Re: [PATCH 1/2] x86, crypto, Generate .byte code for some new instructions via gas macro

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Message-ID: <20091105142336.GB1910@gondor.apana.org.au>
Date:	Thu, 5 Nov 2009 09:23:36 -0500
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	Huang Ying <ying.huang@...el.com>
Cc:	Ingo Molnar <mingo@...e.hu>, "H. Peter Anvin" <hpa@...or.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-crypto@...r.kernel.org" <linux-crypto@...r.kernel.org>
Subject: Re: [PATCH 1/2] x86, crypto, Generate .byte code for some new
	instructions via gas macro

On Thu, Nov 05, 2009 at 02:44:15PM +0800, Huang Ying wrote:
> It will take some time for binutils (gas) to support some newly added
> instructions, such as SSE4.1 instructions or the AES-NI instructions
> found in upcoming Intel CPU.
> 
> To make the source code can be compiled by old binutils, .byte code is
> used instead of the assembly instruction. But the readability and
> flexibility of raw .byte code is not good.
> 
> This patch solves the issue of raw .byte code via generating it via
> assembly instruction like gas macro. The syntax is as close as
> possible to real assembly instruction.
> 
> Some helper macros such as MODRM is not a full feature
> implementation. It can be extended when necessary.
> 
> Signed-off-by: Huang Ying <ying.huang@...el.com>

Once Ingo acks this I'll throw it into cryptodev.

Thanks!
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