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Date: Sun, 25 Mar 2007 18:44:15 -0500
From: Anthony Liguori <anthony@codemonkey.ws>
MIME-Version: 1.0
Subject: Re: [Qemu-devel] [RFC/experimental patch] qemu (x86_64 on x86_64
	-no-kqemu) compiles with gcc4 and works
References: <200703241850.03116.axel.zeuner@gmx.de>
	<460586D0.7030209@codemonkey.ws>
	<200703251412.07039.Axel.Zeuner@gmx.de>
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To: Axel Zeuner <Axel.Zeuner@gmx.de>
Cc: qemu-devel@nongnu.org

Axel Zeuner wrote:
> On Saturday 24 March 2007 21:15, Anthony Liguori wrote:
>   
>> The tricky thing I still can't figure out is how to get ASM_SOFTMMU
>> working.  The problem is GLUE(st, SUFFIX) function.  First GCC cannot
>> deal with the register pressure.  The problem I can't seem to fix though
>> is that GCC sticks %1 in %esi because we're only using an "r"
>> constraint, not a "q" constraint.  This results in the generation of
>> %sib which is an invalid register.  However, refactoring the code to not
>> require a "q" constraint doesn't seem to help either.
>>     
> Hi Anthony,
> could you please try the attached patch for softmmu_header.h? Allows compiling 
> with gcc4 and ASM_SOFTMMU.
>   

That did the trick.  Could you explain what your changes did?

Regards,

Anthony Liguori

> Kind regards
> Axel
>